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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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18-04-2023 дата публикации

Positioning method and device and electronic equipment

Номер: CN115980808A
Автор: LIU YONGSHENG, WU RENPAN, TANG ERHUI, WU XIAOMENG, WEI GUO, WU KAI
Принадлежит:

The invention provides a positioning method and device and electronic equipment, and is applied to the technical field of positioning, and the positioning method comprises the steps: obtaining coded data; wherein the coded data comprises coded real-time input data, intermediate data and positioning setting data, and the intermediate data is determined according to the real-time input data and the positioning setting data; decoding the coded data to obtain corresponding real-time input data, intermediate data and positioning setting data; and positioning according to the real-time input data, the intermediate data and the positioning setting data, and determining a post-event positioning result. According to the scheme, the postmortem positioning result can be determined by combining the intermediate data on the basis of the real-time input data and the positioning setting data, so that the accuracy of the postmortem positioning result can be improved, the reproduction of the real-time positioning ...

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Номер записи: 1
27-07-2016 дата публикации

Wireless power supply's purifier

Номер: CN0205398265U
Автор: DING JIANFENG, LIU YONGSHENG, DONG DAOJIN
Принадлежит:

... 本实用新型公开了种无线供电的净水机，包括柱状放射器和净水机，所述柱状发射器电连接市电，所述柱状发射器无线电波连接设于接收器上的天线，所述接收器包括电感线圈、调谐电容、滤波电容和电池组，所述天线电连接电感线圈，所述电感线圈分别与调谐电容和滤波电容并联，所述电感线圈电连接电池组，所述净水机包括第PP棉滤器和净水机控制器，所述电池组电连接净水机控制器，该净水机采用柱状发射器和接收器的结构，柱状发射器发出波长震动，产生电交变磁波，接收器位于柱状发射器的周围，接收器的天线接受交变的电磁波，在电感线圈处就会产生感应电流，存储在电池组内，给控制器供电，无需净水机通过导线直接连接电源，使用方便。 ...

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Номер записи: 2
04-07-2023 дата публикации

Cutter head resistance moment simulation device for intelligent shield tunneling experiment

Номер: CN116378691A
Автор: CHEN RUIXIANG, LI ZENG, WANG CHAOFENG, YOU JINHU, ZENG CHUIGANG, LEE BONG-WON, ZHANG HEPEI, LIU YONGSHENG, HAN WEIFENG, WANG KAI, QIN YINPING, LIN CHUNGANG, LI DAWEI, YANG JUNHUA, XIA MING, SHI ZHIHUI, YANG TIANLI, HUANG WEI, CHEN LELE, LIANG RONGZHANG
Принадлежит:

The invention discloses a cutterhead resistance moment simulation device for an intelligent shield tunneling experiment, which comprises a welding flange fixedly arranged on the front surface of a cutterhead, a friction cylinder arranged on the welding flange, a center body arranged in the friction cylinder and a torque sensor arranged above the center body, the supporting beam is arranged on the shield body; resistance blocks are symmetrically arranged on the left side and the right side in the cavity of the center body in a sliding mode, and the two resistance blocks are connected with the two ends of an oil cylinder placed in the center body respectively; arc-shaped friction plates are arranged on the outer sides of the resistance blocks respectively. The device can be used for simulating the resistance moment encountered when the cutterhead is tunneled in a shield tunneling experiment, changes of geological conditions, cutterhead states and the like during shield tunneling can be simulated ...

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Номер записи: 3
13-09-2012 дата публикации

PHOTOELECTRIC MATERIAL PREPARATION

Номер: WO2012119551A1
Автор: CHEN, Yongsheng, WAN, Xiangjian, LIU, Yongsheng, LI, Zhi, ZHOU, Jiaoyan, WANG, Fei, HE, Guangrui, LONG, Guankui
Принадлежит:

Disclosed are a receptor type oligothiophene compound, and preparation method and applications thereof.

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Номер записи: 4
04-04-2023 дата публикации

Method for spraying concrete to TBM tunnel primary support

Номер: CN115908389A
Автор: CHEN QIAO, LIU YONGSHENG, YOU JINHU, YIN LONG, LI ZHIJUN, ZHANG JICHAO, PAN YUE, XIE TAO, ZHANG HEPEI, LI SHU'AO, YANG JUHUI, HUANG JINGUANG, ZHOU YI, LI ZENG
Принадлежит:

The invention discloses a TBM tunnel primary support concrete spraying method, which is characterized in that a tunnel inner contour imaging module is mounted on one side of a concrete spraying nozzle, and is electrically connected with a tunnel contour data processing module; the method comprises the following specific steps: acquiring an original image of the inner contour of a tunnel, spraying concrete, detecting the thickness of a concrete spraying operation area, evaluating the quality of the concrete spraying operation, and repeating the steps until the thickness and the flatness of the sprayed concrete reach design indexes. According to the invention, the thickness and flatness of sprayed concrete in a sheet area can be rapidly and accurately detected, and the detection efficiency, precision and range are improved.

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Номер записи: 5
15-08-2023 дата публикации

Perovskite thin film preparation method and solar cell device application

Номер: CN116600615A
Автор: LIU YONGSHENG, GAO YUPING
Принадлежит:

The invention provides a perovskite thin film preparation method and application of a solar cell device. Spin-coating a layer of lead iodide solution on the electron transport layer, and after annealing treatment, spin-coating a layer of organic ligand material on the surface of the lead iodide film to form two-dimensional perovskite seed crystals dispersed on the surface of the lead iodide film; and spin-coating a mixed solution of formamidine iodized salt and methylamine chloride salt on the lead iodide thin film, and carrying out annealing treatment to obtain the seed crystal induced crystallization three-dimensional perovskite thin film. According to the technology, the 2D seed crystal can be formed in situ to induce perovskite crystallization, additional synthesis steps are not needed, and the 2D seed crystal formed by the technology is a pure phase (n = 1 phase), does not contain other impure phase structures, and is more beneficial to charge transfer and obtaining of a high-quality ...

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Номер записи: 6
25-07-2023 дата публикации

Preparation method of rotating disc for centrifugal disc atomization titanium and titanium alloy powder

Номер: CN116475424A
Автор: XIE BO, WU WANG, LIU YONGSHENG, LIU XINYU
Принадлежит:

The invention discloses a preparation method of a rotating disk for atomizing titanium and titanium alloy powder of a centrifugal disk, which comprises the following steps: S1, drawing a three-dimensional drawing of the rotating disk through software, converting the three-dimensional drawing into an STL file format, then cutting the file into a series of ordered slice layers with certain thickness by utilizing slicing software, and then, carrying out vacuum drying on the slice layers; transmitting the two groups of slice data to an electron beam selective melting forming equipment system; s2, tungsten powder and yttrium powder are put into a first feeding bin and a second feeding bin of electron beam selective melting forming equipment correspondingly; s3, preheating the substrate, printing the bottom supporting rod and the lower layer of the rotating disc by using tungsten powder to reach a preset layer height, and continuously printing the upper layer of the rotating disc by using yttrium ...

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Номер записи: 7
04-04-2023 дата публикации

Flexible combined pavement structure type and design method

Номер: CN115897325A
Автор: TAN QIANG, HUANG ZHEJUN, QIAO YONGHE, LI PANPAN, WANG BOQUAN, TIAN SHIKUAN, LI GUIQIN, WEI JIANJIANG, YUAN YIJUN, XIE ZHAOJUN, LIU YONGSHENG, ZHANG JI, ZHOU ZIBO
Принадлежит:

The flexible combined pavement structural form is characterized by comprising a high-performance roadbed, a subbase layer on the high-performance roadbed is paved with a reduction layer, a base layer on the reduction layer is paved with graded broken stones, a lower surface layer of an upper graded broken stone layer is paved with a high-modulus asphalt mixture, and a lower surface layer of a lower graded broken stone layer is paved with a high-modulus asphalt mixture. Medium-grain asphalt concrete is laid on the middle surface layer of the high-modulus asphalt mixture upper layer, and an asphalt mastic macadam mixture is laid on the upper surface layer of the medium-grain asphalt concrete upper layer. According to the calculation method of the flexible combined pavement, the required pavement condition can be calculated according to the actual condition of each region, meanwhile, a brand new design theory, concept and design method are designed, and the service life of the flexible combined ...

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Номер записи: 8
09-05-2023 дата публикации

Method for identifying and controlling surrounding rock field state in tunnel construction

Номер: CN116090053A
Автор: HONG KAIRONG, LIU YONGSHENG, PAN YUE, XIE TAO, YIN LONG, YANG CHAOSHUAI, FENG HUANHUAN, CHEN QIAO, ZHANG JICHAO, YOU JINHU, LI ZHIJUN
Принадлежит:

The invention discloses an identification method and a control method for a tunnel construction surrounding rock field state. The method comprises the following steps: S1, establishing a relationship between a tunnel surrounding rock polar diameter r and surrounding rock deformation delta ur; s2, permissible surrounding rock deformation under the strength criterion: reserving the safety coefficient of the surrounding rock, wherein the permissible actual surrounding rock deformation delta ur meets the following condition: K delta ur is less than delta ur-max; according to the method, a deformation control standard of surrounding rock after tunnel excavation is established, a calculation method for evolution of surrounding rock stress along with deformation under different supporting parameters and supporting opportunities is provided, and a control method is given.

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Номер записи: 9
04-07-2023 дата публикации

Perovskite thin film, preparation method thereof and perovskite solar cell

Номер: CN116390609A
Автор: YANG JING, LIU DONGXUE, LIU YONGSHENG, WANG TING, SONG JONG-RYONG, SUN TIANGE, DONG YIXIN, GONG YONGSHUAI
Принадлежит:

The invention relates to the technical field of perovskite solar cells, in particular to a perovskite thin film and a preparation method thereof and a perovskite solar cell, bulk phase doping is achieved through annealing treatment after thiophene methylamine ammonium salt is added into a perovskite precursor solution for coating, surface passivation is achieved by coating the thiophene methylamine ammonium salt on a perovskite absorption layer, and the perovskite thin film is obtained. Bulk phase doping and surface passivation are carried out by utilizing thiophenemethylamine ammonium salt, and the thiophenemethylamine ammonium salt and the surface passivation are combined, so that the grain size is increased, the carrier life is prolonged, the defect state density is reduced, and non-radiative recombination is inhibited. The photoelectric conversion efficiency and the stability of the perovskite solar cell prepared based on the active layer thin film are improved. The halogen phase separation ...

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Номер записи: 10
15-06-2016 дата публикации

Float coupling and use well cementation subassembly, sleeve pipe tubular column of this showy coupling

Номер: CN0205314933U
Автор: WANG JINCHANG, YUAN BENFU, HE QING, ZHANG HUI, CHEN XIAOHUA, LI DALEI, LIU YONGSHENG, QU YUFENG, LIANG YUMEI
Принадлежит:

... 本实用新型公开了一种漂浮接箍及使用该漂浮接箍的固井组件、套管管柱。漂浮接箍的下方还设置有阻挡接箍，而漂浮接箍的内滑套的下方设有过流盘，过流盘在循环孔处于封闭位时挡止在内滑套的封闭端和阻挡接箍的定挡环之间，并通过过流盘上的过流通道将内滑套外的滑套环空和定挡环的内孔连通，建立循环，实现固井作业。在替浆作业之前，就可以将内滑套落入套管管柱的尾管段中，这实际上是将打落内滑套的作业时机提前到替浆作业之前，避免了水泥砂浆在内滑套和尾管段之间形成水泥塞的问题，保证了固井作业的顺利进行，也降低了后续作业的施工难度。 ...

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Номер записи: 11
25-07-2023 дата публикации

Combined sealing device

Номер: CN116480780A
Автор: ZHANG XINHENG, XU ZUJIN, LIU YONGSHENG, WANG BO
Принадлежит:

The invention relates to a combined sealing device which comprises a sealing seat and a sealing piece, the sealing seat is provided with a sealing cavity for a rotating shaft to penetrate through, the sealing piece is detachably connected to the inner wall of the sealing cavity, and the sealing piece is used for abutting against the outer wall of the rotating shaft to form sealing; when the rotating shaft penetrates through the sealing cavity, the sealing seat limits the sealing piece on the outer wall of the rotating shaft, and the sealing piece abuts against the outer wall of the rotating shaft to form sealing. According to the combined sealing device, due to the arrangement of the sealing seat and the sealing piece, the whole combined sealing device does not need to be replaced, material waste is reduced, the concept of energy conservation is embodied, and therefore the use cost of the combined sealing device is reduced; a guide surface is arranged, so that the pre-tightening force between ...

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Номер записи: 12
07-04-2023 дата публикации

Full-section multi-procedure synchronous operation rapid construction organization method for small-section tunnel

Номер: CN115929322A
Автор: HUANG JINGUANG, WANG JINGANG, YOU JINHU, CHEN QIANG, ZHOU YI, ZHANG CHUANJUN, JIANG JIAYUN, LIU YONGSHENG, CHEN QIAO, YANG JUHUI, YU JINGBO, LI BAOFENG, YUAN XINQIANG, WANG PING, YANG TIANLI, XU ZHENGXUAN
Принадлежит:

The invention discloses a rapid construction organization method for full-section multi-procedure synchronous operation of a small-section tunnel. The method comprises the steps of advanced geological forecast, tunnel face blast hole drilling and current circulation anchor rod construction, tunnel face danger elimination, explosive charging connecting line detonation, ventilation, top finding, first-time deslagging, primary spraying of current circulation, secondary spraying of upper circulation concrete and secondary deslagging. The shotcrete mixed with the steel fibers and the nanometer materials is used for replacing meshes (steel arches) and common shotcrete, surrounding rock is actively supported under the combined action of the shotcrete and the pre-stressed anchor rods, tunnel face shot hole drilling construction is achieved, meanwhile, an idle 2 # arm of the three-arm drill jumbo is used for conducting anchor rod procedure operation, and parallel operation of the shotcrete and the ...

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Номер записи: 13
25-08-2023 дата публикации

Method for preparing wire for electric arc additive manufacturing based on large-particle spherical metal powder

Номер: CN116638089A
Автор: XIE BO, LIU XINYU, LIU YONGSHENG, WU WANG
Принадлежит:

The method for preparing the wire for electric arc additive manufacturing based on the large-particle spherical metal powder relates to the technical field of additive manufacturing and comprises the steps that mixed powder containing the large-particle spherical metal powder is obtained; rolling a metal sheath with the same components as the large-particle spherical metal powder into a U shape; and the mixed powder is filled into the metal skin, and the metal skin is treated to obtain the powder core wire for electric arc additive manufacturing. Cored wire and additive manufacturing has remarkable advantages in the aspects of large-particle powder application, element loss stopping, component regulation and control and the like.

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Номер записи: 14
04-07-2023 дата публикации

Trafficability identification method and matching method for local stripping section of side wall rock of TBM gripper shoe

Номер: CN116383916A
Автор: LIU YONGSHENG, XIE TAO, HONG KAIRONG, PAN YUE, YIN LONG, YOU JINHU, CHEN QIAO, ZHANG JICHAO, LI ZHIJUN, NIU TONGTONG, ZHANG LIMENG, YANG JUHUI, YANG ZHENXING
Принадлежит:

The invention discloses a trafficability identification and matching method for a local stripping section of a side wall surrounding rock of a TBM (Tunnel Boring Machine) gripper. The trafficability identification and matching method comprises the following steps: step 1, establishing TBM tunneling gripper supporting capacity effective criteria: a strength criterion and a friction force criterion; 2, determining the allowable contact area of the supporting shoe and the rock surface under the strength criterion; 3, determining the allowable contact area of the gripper shoe and the rock surface under the friction force criterion; and 4, respectively comparing the actual contact area of the gripper shoe and the rock surface with the allowable contact area of the gripper shoe and the rock surface under the strength criterion and the friction criterion. And 5, supporting shoe side wall surrounding rock backfilling treatment measures are matched. According to the method, the support reaction ...

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Номер записи: 15
06-07-2016 дата публикации

Domestic full room water treatment system

Номер: CN0205367920U
Автор: DING JIANFENG, LIU YONGSHENG, ZHANG YU
Принадлежит:

... 本实用新型公开了一种家用全屋净水处理系统，所述前置过滤器的右侧出水口通过PVC管连接中央净水机控制阀左端进水口，所述中央净水机控制阀的底部通过外螺纹与中央净水机玻璃钢桶螺纹口相连，所述中央净水机控制阀的右端冲洗口通过PVC管连接第一地漏，所述中央净水机控制阀的右端出水口通过PVC分别和中央软水机控制阀进水口、反渗透净水机进水口与超净净水机进水口连接，所述中央软水机控制阀的底部通过外螺纹与中央软水机的玻璃钢桶连接，所述中央软水机控阀吸盐口通过PE管连接有盐桶内的盐井。所述超净净水机的右端出水口通过PE管连接净水用水口。该系统将分散在各处的家用净水处理单元集中起来，便于集中管理，统一维护。 ...

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Номер записи: 16
23-05-2023 дата публикации

Preparation device and method for 3D printing titanium alloy powder with fluidity

Номер: CN116140607A
Автор: XIE BO, LIU YONGSHENG, WU WANG, LIU XINYU
Принадлежит:

The invention belongs to the field of gas atomization powder preparation and powder screening, and particularly relates to a preparation device and method for 3D printing titanium alloy powder with fluidity. According to the preparation device, a feeding bin is connected with a spiral feeding machine, the spiral feeding machine is connected with a first-stage turbine classifier, the upper portion of the first-stage turbine classifier is connected with a second-stage turbine classifier, the lower portion of the first-stage turbine classifier is connected with a first-stage powder collecting tank set, and the lower portion of the second-stage turbine classifier is connected with a second-stage powder collecting tank set. The upper part of the second-stage turbine classifier is connected with the dust remover, the lower part of the second-stage turbine classifier is connected with the second-stage powder collecting tank group, the dust remover is connected with the induced draft fan, and the ...

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Номер записи: 17
16-05-2023 дата публикации

Spherical high-entropy alloy powder for 3D printing and preparation method thereof

Номер: CN116117126A
Автор: LIU XINYU, WU WANG, LIU YONGSHENG, ZHONG BING
Принадлежит:

The invention discloses spherical high-entropy alloy powder for 3D printing and a preparation method of the spherical high-entropy alloy powder, and relates to the technical field of metal powder preparation. 20%-40% of manganese; 5 to 15 percent of cobalt; and 5-15% of chromium. The method comprises the following steps: cleaning the surfaces of elemental metals of iron, manganese, cobalt and chromium, and putting the elemental metals into a crucible with a high-frequency induction power supply copper coil in proportion; the equipment is vacuumized, under vacuum protection, a high-frequency induction power supply copper coil is turned on to heat the metal in the crucible, and the metal is poured into a tundish after being completely molten, so that the alloy solution uniformly falls down; after the first drop of solution falls, an argon valve is opened, and the solution becomes small drops under the action of high-pressure gas and is solidified into solid particles; the high-entropy alloy ...

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Номер записи: 18
16-05-2023 дата публикации

Method and system for improving utilization rate of metal additive manufacturing powder

Номер: CN116117167A
Автор: LIU YONGSHENG, WU WANG, LIU XINYU, XIE BO
Принадлежит:

The invention discloses a method and system for improving the utilization rate of metal additive manufacturing powder, and relates to the technical field of metal additive manufacturing, and the method comprises the steps that used old powder is subjected to vibration screening, and sampling is carried out for inspection and analysis; when the test analysis result of the old powder shows that the quality reaches the standard, the old powder is continuously used; when the inspection and analysis result of the old powder shows that the quality does not reach the standard, mixing the old powder with the new powder in proportion; inspecting and analyzing the quality of the mixed metal powder; when the inspection and analysis result of the mixed metal powder shows that the quality reaches the standard, packaging is carried out; and when the inspection and analysis result of the mixed metal powder shows that the quality does not reach the standard, the metal powder which does not reach the standard ...

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Номер записи: 19
23-06-2023 дата публикации

End frame coal caving device

Номер: CN116291620A
Автор: ZHOU JIAN, GENG XUESHENG, CHEN WEILONG, ZHANG CHENG, LIU JIE, LIU YONGSHENG, SUN SHANGBIN, REN PEIHUI, HOU KELE
Принадлежит:

The invention relates to the technical field of thick coal seam fully mechanized caving face rubber belt roadway end coal caving, in particular to an end frame coal caving device which comprises two symmetrically-distributed top beams and a base located below the top beams, the front side and the rear side of each top beam are provided with a front beam and a shield beam respectively, and the top beams and the bases are connected through telescopic stand columns in a supporting mode. The high-position coal caving device is additionally arranged on the end head frame, coal caving operation is carried out, the area of a rear corner suspended roof is reduced, a roof can collapse in time, and dynamic disasters such as rock burst caused by sudden collapse of a large-area suspended roof are avoided; according to the method, coal is caved at the end of the rubber belt roadway, residual coal in a goaf is reduced, and the spontaneous ignition risk of the residual coal is reduced; the rubber belt ...

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Номер записи: 20
06-06-2023 дата публикации

Large power generation fan blade cleaning equipment

Номер: CN116221043A
Автор: CHE KUNTAO, KONG JINLIANG, LIU YONGSHENG, FAN XIAOFEI, WANG CHAOJIN, DONG XIANYI, ZHENG ZHIFENG, SHI XIANGCHENG, GAO GUOQING
Принадлежит:

The invention discloses large power generation fan blade cleaning equipment which comprises creeping arc plates, cleaning nozzles and cleaning flexible pneumatic claws, and belongs to the technical field of wind power blade cleaning, after a driving hydraulic rod contracts, a first folding plate and a second folding plate can be driven to unfold, so that the cleaning nozzles on the first folding plate unfold along with the first folding plate, and the cleaning nozzles on the second folding plate unfold along with the second folding plate; the wind power blades can be conveniently sprayed and cleaned, after the cleaning nozzles are folded and put away, the influence caused by outdoor air flow can be reduced, crawling arc plates can conveniently climb along the wind power tower drum, the cleaning flexible air claws are expanded after being inflated and bent towards the inner side, and after electromagnets at the ends attract each other, the two cleaning flexible air claws can be connected ...

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Номер записи: 21
01-08-2023 дата публикации

Mobile phone batch film pasting device

Номер: CN116513577A
Автор: YANG CHANGJIANG, HUANG YIBAO, HONG XIAOHUA, OUYANG JIAN, LIU YONGSHENG
Принадлежит:

The invention relates to the technical field of mobile phone film pasting, in particular to a mobile phone batch film pasting device. The invention provides a mobile phone batch film pasting device which can achieve batch, rapid and accurate film pasting through a machine and is high in film pasting efficiency. A mobile phone batch film pasting device comprises a containing table, a storage plate and the like, a plurality of containing grooves used for containing mobile phones are evenly formed in the middle of the containing table, three square sliding grooves are formed in each of the front portion and the rear portion of the containing table, and the storage plate is fixedly connected to the rear side of the containing table. By arranging the sliding rods, the front side, the rear side, the left side, the right side and the retrograde motion of the mobile phone are clamped and fixed, and the mobile phone is prevented from moving during film pasting.

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Номер записи: 22
04-08-2023 дата публикации

Grinding activation method of steel slag and steel slag grinding aid activator

Номер: CN116535122A
Автор: LIU JUNHUA, YANG XU, ZHOU LIREN, YANG YANG, LIU YONGSHENG, XU ZHE, SHI YUCHEN, YANG CHUNLI
Принадлежит:

The invention discloses a grinding activation method of steel slag and a steel slag grinding aid activator, and relates to the technical field of steel slag grinding, the grinding activation method provided by the invention comprises the following steps: weighing the steel slag grinding aid activator from coarsely ground steel slag particles according to a mixing amount of 0.1-0.3%; the steel slag grinding aid activator comprises 15-30 parts of a phase change material, 10-20 parts of phosphatidylserine, 10-15 parts of polyvinyl alcohol nanoparticles, 5-10 parts of inorganic salt, 1-5 parts of redispersible latex powder and 100 parts of water. Then adding inorganic salt, redispersible latex powder and water into the steel slag particles, and grinding for 5-10 minutes; and then adding the phase change material, phosphatidylserine and polyvinyl alcohol nano-microspheres, and grinding for 10-15 minutes to obtain the steel slag micro-powder. According to the invention, the grinding time is shortened ...

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Номер записи: 23
25-08-2023 дата публикации

Model creation method and device based on BIM (Building Information Modeling) technology

Номер: CN116644500A
Автор: FU PING, CAO SHAOPU, ZHANG AIPING, LIU QINGZHI, DING QIONG, LIU YONGSHENG, LI CHAOJUN
Принадлежит:

The invention provides a BIM technology-based model creation method and device, a storage medium and an electronic device.The method comprises the steps of obtaining first component information of a to-be-modeled first component; based on the first component information, determining a first top coordinate and a second top coordinate of the first component through a first creation function; determining a first point coordinate, a second point coordinate, a first midpoint coordinate and a second midpoint coordinate of the first component according to the first top coordinate, the second top coordinate and the first component information; and based on the first top coordinate, the second top coordinate, the first point coordinate, the second point coordinate, the first midpoint coordinate and the second midpoint coordinate, determining a first component through a first modeling subfunction. According to the method and the device, the problem of low modeling efficiency is solved, and the effect ...

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Номер записи: 24
15-08-2023 дата публикации

Method for removing support structure of titanium and titanium alloy product prepared by selective laser melting

Номер: CN116586636A
Автор: LIU XINYU, WU WANG, LIU YONGSHENG, CHEN CHEN
Принадлежит:

The invention relates to a method for removing a support structure of a titanium and titanium alloy product prepared by selective laser melting, which comprises the following steps of: placing a part which is formed by selective laser melting (SLM) and is provided with a support structure into a heat treatment furnace, and setting a heat treatment temperature value and heat preservation time; inert protective gas is filled into the heat treatment furnace, and heat treatment is started after the oxygen content in the heat treatment furnace is reduced to be lower than the required concentration; and after the heat treatment temperature reaches a set heat treatment temperature value, a mixed solution of ammonium bifluoride, sodium fluoride, sodium chloride, aluminum fluoride and water is introduced into the heat treatment furnace. By means of the method, vaporization can be conducted in the heat treatment process, the supporting structure is corroded, meanwhile, the influence on the dimensional ...

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Номер записи: 25
14-07-2023 дата публикации

Application of LDHA inhibitor in preparation of medicine for treating pulmonary arterial hypertension

Номер: CN116421591A
Автор: MA CUI, ZHU XIANGRUI, ZHANG TINGTING, ZHANG LIXIN, WANG XIAOYING, GUAN XIAOYU, WANG CHAOSI, PANG XIANGMING, CHEN YINGLI, ZHU YINGJUAN, WU JIAWEI, LIU YONGSHENG
Принадлежит:

The invention provides application of an LDHA inhibitor in preparation of a medicine for treating pulmonary arterial hypertension, and relates to the technical field of medical medicine development. The specific inhibition of LDHA can obviously relieve the thickening of the middle layer of the pulmonary artery blood vessel, the fibrosis degree and the H3K18 lactic acid modification degree, meanwhile, the mouse test also proves that the symptom of ventricular hypertrophy caused by pulmonary arterial hypertension can be obviously improved after the specific inhibition of LDHA, and the body weight of the mouse is not changed compared with that of a control group; the LDHA inhibitor has a good curing effect and has no side effect, so that the LDHA inhibitor has a great potential medicinal value when being applied to preparation of medicines for treating pulmonary arterial hypertension.

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Номер записи: 26
13-04-2021 дата публикации

Multifunctional extraction tank convenient to examine and maintain

Номер: CN212941554U
Автор: HUANG HUAXUE, LIU YONGSHENG, LONG WEI'AN, HUANG WEI, 黄华学, 刘永胜, 龙伟岸, 黄伟
Принадлежит: JIANGXI HAIFU BIOTECH CO LTD, JIANGXI HAIFU BIOTECH CO., LTD., 江西海富生物工程有限公司

The utility model discloses a multifunctional extraction tank convenient to examine and maintain, which comprises an inner barrel, a sleeve shell, a barrel cover, a clamping block, a push rod motor, a feeding port, a supporting seat, a cover plate, a threaded sleeve, a threaded rod, a fixing block and a connecting barrel, the outer side of the inner barrel is fixedly sleeved with the sleeve shell, and the outer side of the outer side is symmetrically provided with the push rod motor; supporting rods are symmetrically and fixedly connected to the outer wall of the sleeve shell, the ends, away from the sleeve shell, of the supporting rods are fixedly connected with the corresponding push rod motors, supporting bases are symmetrically and fixedly connected to the outer wall of the bottom of the sleeve shell, a barrel cover is arranged under the sleeve shell, and a folding rod is fixedly connected to the bottom of the barrel cover. According to the multifunctional extraction tank, the barrel ...

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Номер записи: 27
18-04-2023 дата публикации

Rock crushing device for tunnel construction

Номер: CN115977624A
Автор: WANG ZHENHUA, WU BO, ZHANG FUQING, LI DONGWEI, HU PEIQIANG, HUANG CHUANSHENG, YANG HUI, LIU XIQI, WANG GANG, YUAN CHANG, AO XIAOPING, MA HONGWEI, LIU YONGSHENG, XIA MINGHAI, QIN ZIPENG, WANG ZECHENG
Принадлежит:

The invention discloses a rock crushing device for tunnel construction, and belongs to the technical field of rock crushing devices.The rock crushing device comprises a sleeve, outer hubs and inner hubs are installed on the surface of the sleeve, a sliding rail is installed between the inner hubs, movable discs are arranged on the inner sides of the inner hubs, sliding blocks are installed on the outer surfaces of the movable discs, and balls are rotationally connected to the inner sides of the sliding blocks; the structural strength and compression resistance of a sleeve are improved through an outer hub and an inner hub, a sliding rail is supported, resistance is reduced for movement of a movable disc through sliding of balls on the inner side of the sliding rail, so that kinetic energy loss in the impact process is reduced, the movement track of a movable frame is limited through the structures of a corner frame and a limiting frame, and the service life of the movable frame is prolonged ...

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Номер записи: 28
18-08-2023 дата публикации

Low-temperature freeze drying system

Номер: CN116608649A
Автор: LIU YONGSHENG, XU ZUJIN, WANG BO, XU PENGYE
Принадлежит:

The low-temperature freeze-drying system comprises a material chamber, a freezing assembly and a cooling assembly, the material chamber is provided with a plurality of material trays, the freezing assembly comprises a plurality of freezing pipelines and a vacuum pump, and the freezing pipelines correspond to the material trays one to one; and an air exhaust pipeline is connected between the plurality of freezing pipelines and the vacuum pump. The freezing pipeline and the vacuum pump are arranged, so that water in the freezing pipeline is recycled, a user does not need to supply water to the low-temperature freeze-drying system all the time, waste of materials is reduced, the concept of energy conservation is embodied, and the use cost of the user on the low-temperature freeze-drying system is reduced; through the arrangement of the drying assembly, ice in the materials absorbs heat and sublimates to form water vapor, drying of the materials is achieved, and therefore the storage time of ...

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Номер записи: 29
16-05-2023 дата публикации

Paint spraying machine for machining mechanical parts

Номер: CN116116609A
Автор: BU WEIJING, WANG XIULING, ZHANG GUOFU, LIU YONGSHENG
Принадлежит:

The invention relates to the technical field of machining paint spraying, in particular to a mechanical part machining paint spraying machine which comprises an equipment machine table, a carrying base installed on the equipment machine table and a fixed rack installed on the equipment machine table and located on the side edge of the carrying base. A loading jig is arranged on the loading base, the loading jig is rotatably installed on the loading base, an adsorption machine part is further arranged in the loading base, the loading surface of the loading jig is of an adsorption structure, and the air exhaust end of the loading jig is in butt joint with the adsorption machine part; an adjusting frame is arranged on the fixed rack, a clamping device is installed at the adjusting end of the adjusting frame, and the clamping device extends to the loading face of the carrying jig; a paint spraying rack is further arranged on the side edge of the equipment machine table, a paint spraying part ...

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Номер записи: 30
29-08-2023 дата публикации

TiO2 catalyst containing heteroatoms and transition metals and preparation method thereof

Номер: CN116651482A
Автор: XIE BO, LIU XINYU, LIU YONGSHENG, WU WANG
Принадлежит:

The invention belongs to the field of titanium dioxide catalysts, and particularly relates to a TiO2 catalyst containing heteroatoms and transition metals and a preparation method thereof.The preparation method comprises the steps that a heteroatom source, a transition metal source and a titanium source are stirred in a solvent to be dispersed, and gel is formed; and drying, grinding and calcining the gel to obtain the TiO2 catalyst containing heteroatoms and transition metals. The photocatalytic degradation activity of TiO2 is remarkably improved by adjusting the proportion of the heteroatom source and the composition of the transition metal source: under the condition of heteroatom doping, the visible light absorption performance of Fe and Mn doped TiO2 is better than that of Fe and Cu doped TiO2 and Fe and Co doped TiO2, and the forbidden band width of TiO2 can be effectively reduced; by adjusting the mass ratio of the transition metal source to the titanium source, the particle size ...

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Номер записи: 31
04-07-2023 дата публикации

Device and method suitable for high-throughput manufacturing of metal materials

Номер: CN116372194A
Автор: ZHENG YOUPING, WANG LIYA, FAN YUTING, LIU YONGSHENG
Принадлежит:

The invention relates to the technical field of metal material high-flux preparation, and discloses a device and method suitable for metal material high-flux manufacturing, the device comprises a plurality of airborne powder feeding channels, a plurality of blowing powder mixing channels, a mixed powder feeding channel, a mixed powder feeding controller, a powder mixing bin, a coaxial powder feeding cladding head and a laser source; the plurality of airborne powder feeding channels, the plurality of blowing powder mixing channels and the mixed powder feeding channel are respectively communicated with the powder mixing bin; and the mixed powder feeding controller is arranged on the mixed powder feeding channel. According to the method disclosed by the invention, the metal material which is approximately in a complex shape and has mechanical properties equivalent to those of a forged piece can be prepared based on a 3D printing technology, and sample-level high-throughput manufacturing of ...

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Номер записи: 32
18-07-2023 дата публикации

Fuel cell ultra-low platinum loading capacity membrane electrode structure and preparation method thereof

Номер: CN116454333A
Автор: LIU YONGSHENG, ZHANG SHIMING, TANG MEIHUA, JIN SEUNGRI
Принадлежит:

According to the fuel cell ultra-low platinum loading capacity membrane electrode provided by the invention, the gradient design that the ionomer dosage and the Pt loading capacity are sequentially reduced from the proton exchange membrane side to the gas diffusion layer side is beneficial to proton conduction, oxygen diffusion, liquid water discharge, reduction of charge transfer resistance and the like, and the working performance of the cell can be improved; the fuel cell membrane electrode comprises a catalyst, conductive carbon, an ionomer and a dispersing agent, the mass ratio of the dispersing agent is 100: (0-10): (0.01-10): (0-1), and the viscosity value of mixed slurry is 8-9 mPa.s. The invention also provides a preparation method of the fuel cell membrane electrode.

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Номер записи: 33
04-04-2023 дата публикации

Rare earth reinforced titanium-based composite material and preparation method thereof

Номер: CN115889791A
Автор: XIE BO, LIU YONGSHENG, WU WANG, LIU XINYU
Принадлежит:

The invention belongs to the field of additive manufacturing, and discloses a rare earth reinforced titanium-based composite material and a preparation method thereof.The preparation method comprises the steps that titanium alloy powder added with metal yttrium powder is prepared through an electrode induction melting gas atomization method; the titanium alloy powder added with the metal yttrium powder is subjected to vibration screening, and the titanium alloy powder of 53-105 microns is obtained; and the titanium alloy powder of 53-105 microns is subjected to 3D printing to form the formed rare earth reinforced titanium-based composite material. According to the method, electrode induction smelting gas atomization powder preparation is adopted, metal yttrium particles of 20 microns are directly added into high-pressure and high-speed argon through a powder feeder, the metal yttrium particles crush liquid metal flow into small molten drops along with the argon and adhere to the surfaces ...

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Номер записи: 34
04-04-2023 дата публикации

Icon moving method, related graphical interface and electronic equipment

Номер: CN115904160A
Автор: FAN KAI, LIU YONGSHENG, CAO XIONGWEI
Принадлежит:

The invention discloses an icon moving method, a related graphical interface and electronic equipment. According to the icon moving method, in the icon moving process of a user, the electronic equipment can be supported to properly adjust the interface layout, reduce the application icons according to a certain proportion, display all the application icons in one interface or display more application icons than the application icons in the interface before moving, and the user experience is improved. A user can conveniently and quickly confirm the target position of the icon in the process of moving the application icon. The icon moving method can also support the electronic equipment to dynamically zoom the size of the application icon in the interface according to the speed of dragging the application icon by the user. By implementing the method provided by the invention, the user can quickly position the target position in the process of moving the application icon, the method provides ...

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Номер записи: 35
04-04-2023 дата публикации

Selective laser melting molding high-temperature alloy and production method thereof

Номер: CN115889808A
Автор: LIU XINYU, WU WANG, LIU YONGSHENG, XIE BO
Принадлежит:

The invention belongs to the field of high-temperature alloy 3D printing, and discloses a selective laser melting forming high-temperature alloy and a production method thereof.The production method comprises the steps that technological parameters are regulated and controlled, and primary selective laser melting additive manufacturing forming is conducted on pre-alloyed high-temperature alloy powder to obtain an original printing piece; and technological parameters are regulated and controlled, the original printing piece is subjected to second-time selective laser melting additive manufacturing forming in combination with the pre-alloyed high-temperature alloy powder, and a finished product printing piece is obtained. According to the method, low-energy-density secondary scanning is added in the laser additive manufacturing forming process, meanwhile, the laser power, the scanning speed, the scanning distance, the interlayer scanning angle, the light spot diameter and other technological ...

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Номер записи: 36
22-08-2023 дата публикации

Construction parameter optimization method for posture correction of shield tunneling machine

Номер: CN116628288A
Автор: HONG KAIRONG, GAO HUIZHONG, LIU YONGSHENG, FENG HUANHUAN, JIANG NAN, WANG SHUYING, ZHENG LIANWEI, KANG ZUWEI, LUO WEN, YANG HONGYONG, WEI JUNTAO, LI ZHIGUO, ZENG CHUIGANG, LI FENGYUAN, LI SHU'AO, QIN YINPING, CHEN RUIXIANG, WANG KAI
Принадлежит:

The invention discloses a construction parameter optimization method for posture correction of a shield tunneling machine. The construction parameter optimization method comprises the steps of data acquisition and storage, data extraction, data processing, data analysis algorithm and data training, result output and system application. The method can assist enterprises and technical management personnel to make construction decisions, reduces shield attitude accidents, and improves the production efficiency.

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Номер записи: 37
28-07-2023 дата публикации

Application of SlSPL3 gene in inducing tomato to resist pathogenic bacteria

Номер: CN116497149A
Автор: MIAO MIN, LU RUOXI, LIU YONGSHENG, ZHANG LIN, TANG XIAOFENG, FAN YEZHEN, SONG WU, ZHU HONGYAN, WU ZIRUI
Принадлежит:

The invention belongs to the technical field of plant genetic engineering, and particularly relates to application of an SlSPL3 gene in inducing tomatoes to resist pathogenic bacteria. Through overexpression or inhibition of expression of the SlSPL3 gene in tomato plants, it is found that when the tomato plants are stressed by Pst DC3000, compared with wild plants and co-inhibition plants, overexpression strains have good disease resistance and have no or a very small number of yellowish-brown disease spots, the number of the disease spots of the co-inhibition plants is remarkably increased, and the disease resistance is greatly weakened. According to transcriptional level analysis, the expression up-regulation amplitude of defensive genes such as SlPR1a, SlPTI5, SlWRKY28 and SlGRAS2 in the overexpressed plant is extremely great, and the difference between the defensive genes and wild type defensive genes is extremely remarkable. The result shows that the overexpression of the SlSPL3 gene ...

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Номер записи: 38
02-05-2023 дата публикации

Method for preparing spherical titanium metal powder for 3D printing at low cost

Номер: CN116037942A
Автор: ZHAO SANCHAO, XIE BO, LIU YONGSHENG, WU WANG, LIU XINYU
Принадлежит:

The invention discloses a low-cost method for preparing spherical titanium metal powder for 3D printing, which comprises the following steps: crushing, cleaning and pressing a titanium raw material to obtain a titanium rod; the titanium rod is smelted and atomized through an electrode induction smelting gas atomization method, and spherical titanium metal powder with different granularities is obtained; wherein the titanium raw material comprises a primary titanium raw material or waste titanium; argon circulation is realized through an argon recovery device in the smelting and atomizing process. According to the method, the primary raw material metal titanium, sponge titanium or waste titanium alloy is subjected to spheroidizing treatment, the cost is saved, meanwhile, an argon recovery device in smelting atomization can achieve argon recovery, and the smelting cost is reduced as well.

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Номер записи: 39
08-06-2016 дата публикации

Sleeve pipe floats coupling and uses well cementation subassembly of this coupling

Номер: CN0205297372U
Автор: WANG JINCHANG, DENG HONGLIN, YUAN BENFU, MEI JIE, ZHANG HUI, ZHAO WENBIN, ZHANG YONGQING, LIU YONGSHENG, WEI KAI, LI LINFENG
Принадлежит:

... 本实用新型公开了种套管漂浮接箍及使用该接箍的固井组件。套管漂浮接箍包括浮箍本体及其内装配的内滑套、开关件，内滑套上开设有循环孔，开关件沿上下方向导向移动装配在内滑套上，内滑套上设有用于在开关件相对下移至下极限位时、阻止开关件下行而使开关件关闭循环孔的挡止部，开关件上和/或开关件与内滑套之间设有上过流通道。漂浮接箍和阻挡接箍分处于套管内封存的漂浮气室的上下两端，这样在开始替浆前，通过打压使得内滑套落入挡箍本体后，开关件在阻挡结构的顶推下相对于内滑套上行，使得内滑套上的循环孔打开，内滑套从浮箍本体上被打落的作业时机被提前至替浆作业之前，从而避免了水泥砂浆在内滑套和尾管段之间形成水泥塞的问题。 ...

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Номер записи: 40
09-05-2023 дата публикации

Universal automatic multi-layer storage equipment for wind power blades

Номер: CN116081079A
Автор: YANG JIELI, KONG JINLIANG, CHE KUNTAO, GAO GUOQING, SHI XIANGCHENG, ZHENG ZHIFENG, LIU YONGSHENG, FAN XIAOFEI, WANG CHAOJIN
Принадлежит:

The universal wind power blade automatic multi-layer storage equipment comprises a storage table, multiple sets of weight adjusting boxes, moving wheels, a walking crawler belt, an anti-bending vertical storage mechanism and a balance dynamic reverse thrust weight stabilizing mechanism, the multiple sets of weight adjusting boxes are arranged on the bottom wall of the storage table, and the moving wheels are symmetrically arranged on the two sides of the weight adjusting boxes; the walking crawler belt is arranged on the outer side of the moving wheel in a winding mode, the anti-bending vertical storage mechanism is arranged on the upper wall of the storage table, the balance dynamic reverse thrust stabilizing mechanism is arranged on the bottom wall of the storage table, and the anti-bending vertical storage mechanism comprises a large blade storage mechanism and a small blade storage mechanism. The invention belongs to the technical field of wind power blades, and particularly relates ...

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Номер записи: 41
23-06-2023 дата публикации

Valve seat clamp and machining process

Номер: CN116275813A
Автор: HUANG ZILONG, LU HUAN, LIU YONGSHENG, WANG XIAOFENG, WU HAIJIAN
Принадлежит:

The valve seat clamp comprises a clamp disc and a fixing piece, a vertically-arranged through hole is formed in the center of the clamp disc, the clamp disc is provided with an inward-shrinkage-preventing ring concentric with the through hole, the inward-shrinkage-preventing ring is located on the periphery of the through hole, and the fixing piece is detachably arranged on the clamp disc. The fixing piece comprises a power piece and a moving rod, a matching ring is arranged on the clamp disc, an inward-shrinkage-preventing groove is formed between the matching ring and the inward-shrinkage-preventing ring, a vertical hole formed in the vertical direction is formed in the clamp disc, the power piece drives the moving rod to move along the vertical hole, the top of the moving rod is provided with a pressing part, and the pressing part is partially located above the inward-shrinkage-preventing groove. The invention provides a valve seat clamp capable of preventing the inner diameter of a ...

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Номер записи: 42
22-08-2023 дата публикации

TBM duct piece

Номер: CN116624171A
Автор: HE JINXING, ZHANG XIONGWEI, WANG HONGSONG, LIU YONGSHENG, ZHAO SHIHUI
Принадлежит:

The invention discloses a TBM duct piece which comprises a duct piece body. The outer plate body is connected to the outer side of the duct piece body; the inner plate body is connected to the inner side of the duct piece body; the outer drainage structure is arranged on the outer surface of the outer plate body, the outer drainage structure comprises a water collecting groove and a drainage groove which are formed in the outer surface of the outer plate body, and the water collecting sections between the adjacent pipe pieces communicate with each other to form a water collecting channel; the inner drainage structure is fixed between the inner plate body and the inner side of the duct piece body, and the inner drainage structure comprises two layers of geotechnical cloth and a drainage grating plate wrapped between the two layers of geotechnical cloth; when the segment bodies are spliced into an annular lining structure, the multiple water collecting channels are annularly and evenly distributed ...

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Номер записи: 43
18-07-2023 дата публикации

Preparation method of rotating disk, rotating disk and application of rotating disk

Номер: CN116444272A
Автор: XIE BO, WU WANG, LIU YONGSHENG, LIU XINYU
Принадлежит:

The invention discloses a preparation method of a rotating disc, the rotating disc and application of the rotating disc. The method comprises the steps that Y2O3 powder, a binding agent and a dispersing agent are mixed to obtain slurry; extruding the slurry to obtain raw material particles; and the raw material particles are subjected to 3D printing, degreasing and sintering, and the rotating disc is obtained. The preparation method comprises the following steps: preparing slurry with high Y2O3 content by mixing, then extruding the slurry, and controlling the diameter and sphericity to obtain raw material particles; and the raw material particles are subjected to 3D printing treatment to obtain rotating disc blanks in various shapes, the rotating disc blanks are degreased at the proper temperature, and then the rotating disc is obtained through sintering. Results show that the prepared rotating disc is good in using effect and long in service life, and the rotating disc for preparing titanium ...

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Номер записи: 44
04-07-2023 дата публикации

Anti-blocking type color master batch processing constant feeder

Номер: CN116373150A
Автор: LI ZHONG, GU JIANHUA, LIU YONGSHENG
Принадлежит:

The invention discloses an anti-blocking type color master batch processing constant feeder, and relates to the technical field of color master batch processing, the anti-blocking type color master batch processing constant feeder comprises a material mixing barrel used for containing color master batch raw materials, a screening box communicated with the interior of the material mixing barrel is arranged at a discharging opening in the lower portion of the material mixing barrel, and a feeding assembly used for feeding is arranged on one side of the upper portion of the material mixing barrel; a concave base is arranged on the upper portion of the mixing barrel, a discharging opening is formed in the bottom of the screening box, and a mixing discharging piece is arranged on the concave base and composed of an anti-blocking piece and a stirring piece. According to the anti-blocking type constant feeder for color master batch processing, when powdery raw materials of color master batches ...

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Номер записи: 45
09-05-2023 дата публикации

Manufacturing method of complex thin-wall part

Номер: CN116079077A
Автор: WU WANG, LIU YONGSHENG, LIU XINYU, XIE BO
Принадлежит:

The invention belongs to the technical field of metal additive manufacturing, and particularly discloses a complex thin-wall part manufacturing method which specifically comprises the steps that firstly, a part model to be printed is imported into design software, and printing conditions and process control conditions of simulation calculation are set; 2, performing simulation calculation according to the printing condition and the process control condition of the simulation calculation; 3, representing a calculation result obtained by simulation calculation by a vector field and generating a warping model; 4, converting the warping model into a reversible deformation compensation model in a vector conversion mode; and fifthly, the reversible deformation compensation model serves as an initial to-be-printed part model, the first step to the second step are repeatedly completed, and if the simulation calculation result is within the set deviation allowable range, printing is conducted through ...

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Номер записи: 46
23-05-2023 дата публикации

Modular mold and method for artificially preparing complex jointed rock sample

Номер: CN116148024A
Автор: LIU MINGXING, YAN XI, FU JIE, LIU YONGSHENG, GAO XIAOHU
Принадлежит:

The invention relates to a modular mold and method for artificially preparing a complex jointed rock sample. The modular mold comprises four knife edge side modules and a positioning module, each knife edge side module comprises a foundation side module body, the left side and the right side of each foundation side module body are each provided with a stepped bayonet and a connecting block, external bolt holes are prefabricated in the connecting blocks, and every two adjacent foundation side module bodies can be connected in a fastened mode through bolts; a plurality of knife edges are longitudinally arranged on the side wall of the foundation side module main body; the positioning module comprises an arc-shaped horizontal guide groove rail and a blade guide groove, the size of the horizontal guide groove rail is matched with the size of the basic side module body, and the thickness size of the blade guide groove is matched with a center joint guide groove of the horizontal guide groove ...

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Номер записи: 47
18-08-2023 дата публикации

Variable-section variable-lead vacuum pump

Номер: CN116608125A
Автор: LIU YONGSHENG, XU ZUJIN, WANG BO, XU PENGYE
Принадлежит:

The vacuum pump comprises a screw rod, the screw rod comprises a stud, a front spiral section and a rear spiral section, the front spiral section comprises a plurality of spiral teeth, the rear spiral section comprises a spiral tooth, and the spiral tooth is fixedly connected to the outer wall of the stud; the tooth width of the spiral teeth of the front spiral section is larger than the minimum tooth width of the spiral teeth of the rear spiral section. According to the screw vacuum pump, the tooth width of the rear spiral teeth is increased, the sealing effect between the screw and the inner wall of the pump body is improved through wide tooth top sealing, the compression ratio of the screw vacuum pump is increased, the probability of gas and dust backflow is effectively reduced through the widened tooth width of the spiral teeth, the air exhaust efficiency is improved, and energy consumption is reduced.

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Номер записи: 48
13-06-2023 дата публикации

Neighbor table optimization method and device, computer equipment and medium

Номер: CN116260758A
Автор: XU SU, ZHENG YAN, ZHANG RUIQIANG, LIU YONGSHENG, WANG YOUCHENG, YANG ZIYUAN, WEI WEI, WANG HUIHUI, SONG ZHIWEN, SHEN DONGLIANG, WANG BIN
Принадлежит:

The invention provides a neighbor table optimization method and device, computer equipment and a medium. The method comprises the following steps: acquiring a signal-to-noise ratio of each neighbor node in a first neighbor table; according to the average value of the signal-to-noise ratio of each neighbor node in the first neighbor table, determining a second neighbor table, the signal-to-noise ratio of each neighbor node in the second neighbor table being greater than or equal to the average value of the signal-to-noise ratio of each neighbor node in the first neighbor table; when the number of the neighbor nodes in the second neighbor table is greater than a preset number, acquiring the signal intensity of each neighbor node in the second neighbor table; respectively carrying out weighted summation on the signal-to-noise ratio and the signal intensity of each neighbor node in the second neighbor table to obtain a trust value of each neighbor node in the second neighbor table; sorting ...

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Номер записи: 49
23-06-2023 дата публикации

Method for removing scales on surfaces of pure titanium and titanium alloy products

Номер: CN116276326A
Автор: LIU XINYU, WU WANG, LIU YONGSHENG, XIE BO
Принадлежит:

The invention provides a method for removing oxide skin on the surfaces of pure titanium and titanium alloy products, and belongs to the technical field of metal surface treatment.The method comprises the following steps that firstly, a part to be polished is put into a magnetic polishing machine, and a proper amount of clear water is poured into the polishing machine till the part is immersed; adding a plurality of steel needles according to the mass of the placed part, and then adding citric acid, a surfactant and ammonium bifluoride or ammonium sulfate according to the mass of the poured clear water; and finally, polishing parameters are set, and the part is polished. The method has the advantages of being simple in process, low in comprehensive cost, environmentally friendly and free of pollution, oxide skin on the surface of the titanium alloy part can be removed, the glossiness of the part is greatly improved, and the method can be popularized to other titanium alloy product machining ...

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Номер записи: 50