Composite material high-power RF coaxial connector

The present invention discloses a compound material high power RF coaxial linker which comprises of inner conductor, crust, insulation, outer conductor, cable clip, rear thread sleeve and seal ring. Insulation is set between inner conductor and outer conductor, seal ring is set between crust and rear thread sleeve, crust coats on surface of outer conductor, cable clip and rear thread sleeve, the inner conductor and outer conductor on circuit are made from copper alloy, the crust and rear thread sleeve is made from aluminum alloy or stainless steel or project plastic. The present invention changes the original conductor made from copper alloy totally to conductor made from compound material, reduces cost under the premise of ensuring product capability, improves the market competition of products and meets the requirement of market.

Integrated cooler and vehicle

The invention discloses an integrated cooler and a vehicle, and belongs to the technical field of exhaust gas recirculation. The integrated cooler comprises a cooling assembly body which is provided with a first cooling chamber and a second cooling chamber, an engine oil cooling pipeline is arranged in the first cooling chamber, a cooling liquid cooling pipeline is arranged in the first cooling chamber and the second cooling chamber in an extending mode, and the output end of the first cooling chamber communicates with an exhaust manifold of an engine through a first air outlet pipe; the output end of the second cooling chamber is communicated with the compressor end of the supercharger through a second air outlet pipe; and one end of the EGR waste gas pipe communicates with an exhaust manifold of the engine and is used for guiding in waste gas with heat, and the other end of the EGR waste gas pipe selectively communicates with the input end of the first cooling chamber or the input end ...

Plasma reinforcement technology for the surface of tantalum spinning jet

Cu-Cr in-situ composite with boron, silver and rare earth elements added and preparation method thereof

The invention discloses a Cu-Cr in-situ composite with boron, silver and rare earth elements added and a preparation method thereof. The invention is characterized by adopting multimode comprehensive strengthening technology such as multi-micro alloying, solid solution strengthening, aging strengthening, fine grain strengthening, distortion strengthening, fiber strengthening and the like, using Cu as the base and adding a little Cr and trace Ag and B, rare earth or rare earth compounds to prepare the high performance copper alloy in-situ composite through smelting, casting, hot forging or hotrolling, solid solution treatment, cold rolling or cold drawing, aging and the like. The prepared material has the advantages of high strength, good electric and thermal conductivity, simple preparation process and low cost, thus realizing industrial application in the aspects such as electrician switches, contact materials, resistance electrodes, rotor conductors of large electrical high speed turbine ...

High-energy superposition based alloy steel surface treatment method

The invention discloses a high-energy superposition based alloy steel surface treatment method. According to the method, the alloy steel surface is treated through superposition of electrical explosion, gas explosion and plasma energy, a metal electrode can be consumed through superposition of two or three types of energy, and energetic particles are formed and bombard the alloy steel surface at high-energy density and at high speed under the acceleration action of explosive blast of mixed combustion gases and an electromagnetic field, so that the alloy steel surface is melted and gasified and has an alloying reaction with the energetic particles, surface performance of the alloy steel is improved, and the service life of the alloy steel is prolonged. The alloy steel surface reinforced with the technical method has the characteristics that the modified layer thickness is uniform, metal electrode elements are permeated into the alloy steel surface, the texture is fine and compact, and the ...

Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment

The invention provides a method for preparing a high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment, which is characterized in that the Cu-Fe deformation in-situ composite material in the method is finally prepared into a formed copper material through technical process flows of material proportioning, smelting, casting or continuous casting, magnetic field control solidification, hot forging or hot milling, solid solution treatment, cold milling, cold pulling and magnetic field ageing control. The magnetic field is exerted in the ingot casting solidification process, the solidification of the Cu-Fe deformation in-situ composite material is controlled, Fe dendritic crystals carry out extremely obvious thinning, and the Fe aliquation is reduced, so thematerial disperses and distributes the uniform and fine Fe fiber phase in a base body after the subsequent cold deformation processing, and the intensity of the material is greatly improved. The magnetic ...

Cleaning and recovery method of sewage in medical treatment and device used

A process for reclaiming medical sewage includes such steps as adding dechlorinating agent by ciphon tube, dechlorinating, filtering, adsorption, deposition for removing organic substance, color and odor, and enriching O2 by lifting and showering. Its apparatus is composed of dechlorinating system, filtering-deposition system and showering system. Its advantages are high removal rate of 83% for COD, 92% for BOD, 94% for ammoniacal nitrogen, and 99% for Cl, and low cost.

Method for preparing silicon-fluorine modified acrylic ester emulsion based on macromolecule organic silicon and fluorine-containing monomer

Preparation of fluorine modified acrylic ester emulsion containing fluorine monomer and based on large molecule is carried out by taking acrylic ester as main monomer, taking large molecule organic silicon and fluorine-contained monomer as functional monomer, taking hydrolytic silicyl vinyl unsaturated silane as coupling cross-linking agent, taking anion and non-ionic emulsion as emulsifying system, taking aqueous evocating agent or oxidation reducing evocating system as evocating agent, regulating by pH regulator, and semi-continuous dripping to obtain final product. The emulsion storage stability is not less than 14 months, actual determination solid content is 35-50%, conversion rate is 93-99%, contact angle to water reaches to 118.3 degree, minimum surface energy is 11.7 mJ/m2 and water absorptive rate is 2.3-7.5%. It has excellent polymer system stability, low surface energy and better water resistance.

Laboratory is with dismantling thermometer storage rack

The utility model provides a laboratory is with dismantling thermometer storage rack, the main part comprises base, support column, storage rack and a plurality of clip, its characterized in that, support column fix on the base, and the storage rack is fixed on the support column, have a plurality of to be used for pressing from both sides the clip of thermometer on the storage rack, the adjustment about can be as required of storage rack height, and base, support column and storage rack three can the alternate segregations. The utility model discloses a thermometer storage rack outward appearance is brief, and low cost is fit for the extensive popularization in laboratory. Make things convenient for quick, accurate, the safe thermometer that finds own required specification of laboratory personnel to the whole that has increased the laboratory is pleasing to the eye.

Transition-free welding device for anode guide rod and anode yoke and welding method

The invention discloses a transition-free welding device for an anode guide rod and an anode yoke and a welding method. The welding device comprises the anode guide rod, the anode yoke, an aluminum-steel welding device and a steel-steel welding device. The aluminum-steel welding device welds the anode guide rod with a steel sleeve, and the steel-steel welding device welds the steel sleeve with the yoke. By the transition-free welding device, the anode guide rod and the steel sleeve are integrally welded to form an aluminum-steel composite which is then integrally welded with the anode yoke in a fusion mode, integral transition-free welding of the anode guide rod and the anode yoke is realized, and the anode guide rod and the anode yoke are integrated, so that conducting area of the welding joint is greatly increased, resistance and heating are reduced, and electricity saving effect is realized; due to a protection function of the steel sleeve, connection strength of the anode guide rod ...

Air condensing units used heat water heater

The utility model provides an use air condensing units heat dissipation air outlet used heat air as the air condensing units used heat water heater of heat source, belong to the household electrical appliances field of making. This air condensing units used heat water heater mainly comprises storage water tank and heat collecting sheet two parts. The utility model discloses utilizing the heat collecting sheet to dispel the heat the hot -air of air outlet with air condensing units and heating cold water, hot water and cold water in the heat collecting sheet is because the difference of density forms certain circulation, and hot water compiling to the thermal storage tank in continually, the air conditioner is opened to the back of fixing time, and hot water temperature can reach 38-42 DEG C, can satisfy the needs of washing one's face and rinsing one's mouth summer. It is shorter when the air conditioner available machine time, when the temperature is lower, can opens the electrical heating ...

Method for reinforcing property of carbon steel workpiece surface

The invention discloses a method for reinforcing property of carbon steel workpiece surface. The method comprises the following steps: stack processing the surface of the carbon steel by using high energy, adopting a bipolar consumable metal electrode to melt and gasify the electrode, by adopting the explosion of the mixed combustion gas and the point discharge of the pulse high voltage, making the consumable metal electrode form a high-energy particle, under the explosion of the mixed combustion gas and the acceleration of the electromagnetic field, acting the high-energy particle on the surface of the carbon steel workpiece with an extrahigh energy density and speed to perform alloying reaction so as to increase the surface property of the carbon steel workpiece. A uniform modifying layer with the thickness of 55-100mu m is formed on the surface of the reinforced carbon steel workpiece, the modified layer includes two areas, the outer layer tissue is a cryptocrystalline martensite and ...

Portable warning light is used to schoolbag or knapsack

The utility model relates to a portable warning light is used to schoolbag or knapsack belongs to safety warning lamps and lanterns field. A symmetry is provided with electronic parts on the plane, and electronic parts comprises LED lamp, micro -battery, push type switch, circuit board and transparent safety cover that portable warning light is used to schoolbag or knapsack, the main part comprises clip and electronic parts, its characterized in that, the clip both sides. This portable warning light is used to schoolbag or knapsack can press from both sides the any position at schoolbag or knapsack like ordinary clip. After opening the switch, can send multiple flash of light mode for suggestion rear or the place ahead vehicle driver play warning driver and protection student's purpose. All there is the LED lamp on the two sides of clip, can press from both sides in any position of schoolbag or knapsack, and different angles can all be seen. The utility model discloses convenient to use ...

Cu-Fe in-situ composite with boron, silver and rare earth elements added and preparation method thereof

The invention discloses a Cu-Fe in-situ composite with boron, silver and rare earth elements added and a preparation method thereof. The invention is characterized by adopting multimode comprehensive strengthening technology such as multi-micro alloying, solid solution strengthening, aging strengthening, fine grain strengthening, distortion strengthening, fiber strengthening and the like, using Cu as the base and adding a little Fe and trace Ag and B, rare earth or rare earth compounds to prepare the high strength and high conductivity copper alloy material through smelting, casting, hot forging or hot rolling, solid solution treatment, cold rolling or cold drawing, aging and the like. The prepared material has the advantages of high strength, good electric and thermal conductivity, simple preparation process and low cost, thus realizing wide application in the fields such as electronics, information, transportation, energy, metallurgy, electromechanics and the like.

Vehicle, engine shutdown control method and device thereof and storage medium

The invention discloses a vehicle, an engine shutdown control method and device of the vehicle and a storage medium. The vehicle at least comprises an engine, the vehicle further comprises at least one of a starter and a driving motor, and the engine stop control method of the vehicle comprises the steps that when an engine stop instruction is received, the actual crankshaft position and the target crankshaft position of a crankshaft in the engine are obtained; determining a crankshaft position difference value between the actual crankshaft position and the target crankshaft position; and controlling a starter or a driving motor to drive the engine to rotate from the actual crankshaft position to the target crankshaft position according to the crankshaft position difference value. According to the technical scheme, when the engine is stopped, the crankshaft in the engine is controlled to be located at the target crankshaft position, so that when the engine is stopped, the crankshaft in ...

Cu-Cr in-situ composite with boron, silver and rare earth elements added and preparation method thereof

The invention discloses a Cu-Cr in-situ composite with boron, silver and rare earth elements added and a preparation method thereof. The invention is characterized by adopting multimode comprehensive strengthening technology such as multi-micro alloying, solid solution strengthening, aging strengthening, fine grain strengthening, distortion strengthening, fiber strengthening and the like, using Cu as the base and adding a little Cr and trace Ag and B, rare earth or rare earth compounds to prepare the high performance copper alloy in-situ composite through smelting, casting, hot forging or hot rolling, solid solution treatment, cold rolling or cold drawing, aging and the like. The prepared material has the advantages of high strength, good electric and thermal conductivity, simple preparation process and low cost, thus realizing industrial application in the aspects such as electrician switches, contact materials, resistance electrodes, rotor conductors of large electrical high speed turbine ...

Method for preparing ultra-fine tungsten powder through rare-earth yttrium-doped ammonium paratungstate

A method for preparing ultra-fine tungsten powder through rare-earth yttrium-doped ammonium paratungstate includes the steps of firstly, doping ammonium paratungstate with yttrium in the form of yttrium nitrate with the rare-earth yttrium doping amount of 0.001% to 5%, and conducting drying and grinding for 8 hours to 10 hours at the temperature of 70 DEG C to 90 DEG C; secondly, conducting calcinations at the temperature of 580 DEG C to 620 DEG C under the condition that the temperature is kept constant for 2 hours to 3 hours; thirdly, conducting heating till the temperature ranges from 780 DEG C to 820 DEG C under the hydrogen atmosphere at the temperature rising speed of 5 DEG C/min, keeping the temperature constant for 3 hours to 4 hours, and preparing the ultra-fine tungsten powder. According to the method, APT is doped in the form of yttrium nitrate (Y(NO3)3 6H2O) for preparing the ultra-fine tungsten powder, the doped rare-earth Y can form a monoclinic Y2WO6 new phase, and the prepared ...

Plasma reinforcement technology for the surface of tantalum spinning jet

Inside one vacuum container, tantalum spinning jet as cathode is applied with one DC voltage of 200-1000V; mixed hydrogen and nitrogen gas in the ratio of 4-10 to 1 is introduced to maintain the vacumm degree of 100-1000 Pa inside the container; the voltage and the vacuum degree are so regulated that the temperature is maintaned at 500-900 deg.c for 0.5-1.5 hr; and after powered off to reduce temperature to below 100 deg.c, gas introduction and pumping are stopped and the spinning jet is taken out. The spinning jet after treatment through the cheap technological process has less change in shape and size, low surface roughness, raised spinning quality and prolonged service life.

Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment

The invention provides a method for preparing a high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment, which is characterized in that the Cu-Fe deformation in-situ composite material in the method is finally prepared into a formed copper material through technical process flows of material proportioning, smelting, casting or continuous casting, magnetic field control solidification, hot forging or hot milling, solid solution treatment, cold milling, cold pulling and magnetic field ageing control. The magnetic field is exerted in the ingot casting solidification process, the solidification of the Cu-Fe deformation in-situ composite material is controlled, Fe dendritic crystals carry out extremely obvious thinning, and the Fe aliquation is reduced, so the material disperses and distributes the uniform and fine Fe fiber phase in a base body after the subsequent cold deformation processing, and the intensity of the material is greatly improved. The magnetic ...

Control method and device for slipping of engine gear train, vehicle and storage medium

The invention discloses an engine gear train slipping control method and device, a vehicle and a storage medium. The method comprises the steps that the actual slipping frequency of an engine gear train is obtained; judging whether the actual slip times exceed the theoretical slip times or not; and if yes, outputting an engine gear train slip control strategy. According to the technical scheme, the slipping frequency of the engine gear train is obtained and monitored in real time in the engine gear train, whether the slipping frequency affects normal operation of the engine gear train or not, namely whether the slipping fault occurs or not is judged, and when the slipping fault occurs in the engine gear train, the engine gear train control strategy is output in time; the conditions of belt ablation and driving motor failure caused by frequent slipping of an engine belt are avoided, and normal operation of an engine gear train is guaranteed.

High-strength regenerated hard alloy and preparation method thereof

The invention discloses a high-strength regenerated hard alloy which is superior to raw alloy in hardness and bending strength. The invention also provides a preparation method of the high-strength regeneration hard alloy, which comprises the following steps: (1) proportionally mixing the reclaimed hard alloy, a forming agent and a medium; (2) performing continuous ball milling; (3) drying the mixture after ball milling; (4) screening the dried mixture with a screen; (5) sintering the screened mixture; (6) after sintering, naturally cooling to room temperature under the protection of inert atmosphere in a sintering furnace. By adopting the preparation method provided by the invention, a regenerated hard alloy with excellent performance can be prepared; under optimal technological conditions, the regenerated YG8 hard alloy with hardness of 90.6HRA and bending strength of 3,250MPa can be prepared. Compared with the same kind of technological products, the regenerated hard alloy prepared by ...

Method for preparing modification layer and coating with adjustable components on material surface

The invention discloses a method for preparing a modification layer and a coating with adjustable components on a material surface. The method is based on a material surface treatment method for electrical explosion, gas combustion explosion and plasma triple energy superposition, and the energy level number, electrode materials, explosion gases and environmental atmospheres are changed according to different modification requirements of the materials, so that the elements in the electrodes and the elements in the gases are converted into high-energy particle flow to act on the material surface, the sudden heating and sudden cooling characteristics are simultaneously realized, and the metal material surface modification layer and coating with micro-nano crystal tissues and adjustable components are formed on the material; and therefore, the surface strength, hardness, wear resistance or corrosion resistance of the material can be greatly improved, and the service life of workpieces is further ...

Inner-cooling inert anode for electrolytic aluminum

The invention relates to an inert anode for electrolytic aluminum, and belongs to the field of electrolytic aluminum equipment. The inner-cooling inert anode for the electrolytic aluminum comprises a conductive rod and a metal or metal matrix composite anode connected with the conductive rod, wherein an inner cavity of the metal or metal matrix composite anode adopts a hollow structure, and is communicated with an external circulatory cooling system and a heat exchanger via a cooling medium inlet and a cooling medium outlet which are formed in the metal or metal matrix composite anode. The inert anode has the following advantages that 1, the advantages of excellent conductivity, thermal conductivity, machining property, uniform anode current distribution and the like of a metal inert anode are inherited; the defects that the metal inert anode pollutes molten aluminum during electrolytic aluminum production and is high in cost are overcome; 2, the advantages of good thermal stability of ...

Internal plasticizing monomer-modified acrylate/inorganic nano composite emulsion and preparation method thereof

The invention discloses an internal plasticizing monomer-modified acrylate/inorganic nano composite emulsion and a preparation method thereof. The raw material of the internal plasticizing monomer-modified acrylate/inorganic nano composite emulsion is composed of the following components by weight percent: 30-60% of acrylate monomer, 1-10% of internal plasticizing monomer, 1-10% of inorganic nano-materials, 0.1-1% of initiator, 1-10% of emulsifier, 0.01-1% of buffer agent, 0.01-1% of lauryl mercaptan and the balance of deionized water. The internal plasticizing monomer is directly pre-emulsified together with the acrylate monomer in the preparation method; the inorganic nano-materials are directly added one time. The production process is simple in required equipment, convenient to operate, low in cost and high in safety. The acrylate emulsion is comprehensively modified by adopting the internal plasticizing monomer and the inorganic nano-materials, so that the composite emulsion has high ...

Folding detachable bicycle reflection of light glasses

The utility model provides a folding detachable bicycle reflection of light glasses belongs to bicycle accessory field. The folding detachable bicycle reflection of light glasses main part comprises glasses, folding fixed bolster and two -sided reflection of light lens, its characterized in that, but two -sided reflector piece be connected with the one end of folding fixed bolster by a revolution mechanic, fold the other end of fixed bolster and fix on the picture frame of glasses by a U type fixing clip bit architecture. The bicycle driver looks sidelong at a glance two -sided reflection of light lens in the place ahead to one side at the in -process that goes, only need gently, can understand the road in the rear circumstances by quick accurate, guarantees the security that goes under the circumstances such as turn, change traval route. The utility model discloses simple to use, convenient to carry saves space.

Detachable armlet style mobile phone wallet

The utility model relates to a mobile phone wallet, concretely relates to detachable armlet style mobile phone wallet belongs to cell -phone accessory and daily life articles for use field. The utility model discloses the both sides of the lower bran of wallet are equipped with the becket, and stiff end and wrapping belt pass through the becket interconnect on the bran under crampon and the wallet, provide like this to make the device pass through the crampon with the becket installation or dismantle the very convenient completion mobile phone wallet body and the dismantlement of stiff end and wrapping belt. The utility model discloses a detachable armlet style mobile phone wallet has small in size, the appearance of fine, a simple and practical, can take on hand or wear in arm and the first -class characteristics of leg.

Method for preparing tungsten nano-powder from arsenic-doped ammonium paratungstate or ammonium metatungstate

The invention relates to a method for preparing tungsten nano-powder from arsenic-doped ammonium paratungstate or ammonium metatungstate. The method comprises the following steps of adding the ammonium paratungstate or the ammonium metatungstate into the nitric acid solution of elemental arsenic, wherein the content of the arsenic in a raw material is 0.1 to 5 percent by weight; drying after uniformly stirring, and grinding to prepare arsenic-doped precursor composite powder; placing the arsenic-doped precursor composite powder into a box-type resistance furnace, roasting under air atmosphere at the temperature of 580 to 620 DEG C, and preserving heat for 2 to 3 hours to prepare yellow tungsten trioxide powder; placing the yellow tungsten trioxide powder into a tube-type atmosphere furnace, reducing under hydrogen gas at the reducing temperature of 780 to 820 DEG C, increasing the temperature at the speed of 5 DEG C/min, and preserving heat for 3 to 4 hours to prepare the tungsten nano-powder ...

钽非晶氧化物表面层的制备方法

... 本发明公开了一种钽非晶氧化物表面层的制备方法，它是先将钽件在氢、氮低温等离子体中形成由钽的氮化物和氮在钽中的固溶体组成的表面层，再将该表面层在I A、II A族金属的硝酸熔盐中进行阳极化处理，就可得到表面粗糙度低、致密性高、硬度高、电阻率高、耐碱腐蚀性能好的氧化钽的非晶态表面层。本发明有机地将离子渗氮处理技术和阳极化处理技术组合在一起，可在钽喷丝头及其它场合使用。 ...

Combined type door leaf

The invention discloses a combined type door leaf, aiming at providing a combined type door leaf that is beautiful, practical in appearance, and easy for processing and manufacturing. The door leaf comprises an edge wood brace (1), a decoration strip (2) and a groove plate (3). The edge wood brace (1) is provided with a groove I (5); the two ends of the decoration strip (2) are respectively provided with a convex edge I (6) and a groove II (7); the edge of the groove plate (3) is provided with a convex edge II (8); a convex edge I (5) is matched and spliced with the groove I (6); the convex edge II (8) is matched and spliced with the groove II (7); and the decoration strip (2) is a single whole and can be processed and formed at one time. With the convex edges and the grooves matched and spliced with each other, the appearance of nail marks is avoided.

Surface modification method of cast iron

The invention relates to a surface modification method of cast iron, particularly a novel cast iron material surface modification technique by using electric explosion, gaseous detonation and plasma energy superposition, which performs modification treatment on the cast iron material surface by using high energy superposition. The method has the characteristics of one or two or more of the three surface modification techniques (plasma surface modification, gaseous detonation and electric explosion), can implement treatment in an atmospheric environment, has the advantages of low cost and high treatment efficiency, can form a 70-150-mu m-thick enhanced modified layer on the surface of the cast iron part, and can enhance the wearability, corrosion resistance and service life of the cast iron part by 1-6 times. The method is suitable for surface modification treatment of gray cast iron, malleable cast iron, nodular cast iron, vermicular cast iron and alloy cast iron parts, and can be widely ...

Method of mixed edible fungi extract freshness preserving bolete

The invention relates to a method of a mixed edible fungi extract freshness preserving bolete, which belongs to the technical field of food preservation. The method comprises the following operation steps that: (1) extraction of the effective components of tiger palm fungus solid mass; (2) culture of mycelium dictyophora spine; (3) extraction of the effective components of mycelium dictyophora spine; (4) the enzyme extract of the tiger palm fungus solid mass and the enzyme extract of the mycelium dictyophora spine are mixed to form bolete freshness preserving preparation, and the range of the mixing ratio by weight is 5 to 95 percent: 95 to 5 percent; and (5) a use method of the freshness preserving preparation. Compared with the prior art, the method has the advantages of stable freshness preserving effect, no smell and no residue, and can be widely applied to the freshness preservation of bolete in production practice.

High-strength and high-conductivity copper-base material and its prepn process

The present invention is one kind of high-strength and high-conductivity copper-base material and its preparation process. The high-strength and high-conductivity copper-base material is prepared through purifying metal melt, crystal fining strengthening, separating strengthening and dislocation strengthening and with copper as base and the added mixture of Fe, P, B and RE. The material has high strength, high electric and heat conductivity, simple preparation process and low cost. As one new functional material, the material with excellent comprehensive physical and mechanical performance may be used in microelectronics, communication, astronautics, aeronautics, high speed traffic and other industry.

Maleic di-ester cationoid surface active agent used as polymerisable emulsifier in emulsion polymerization

Method for preparing silicon-fluorine modified acrylic ester emulsion based on macromolecule organic silicon and fluorine-containing monomer

Hybrid engine cooling control system and method and hybrid vehicle

The embodiment of the invention discloses a hybrid power engine cooling control system and method and a hybrid power vehicle. The hybrid power engine cooling control system comprises a power module, an engine, a cold liquid circulation heat dissipation module and a control module. The power module is mechanically connected with the engine, the power module, the engine and the cold liquid circulation heat dissipation module are all electrically connected with the control module, and a condensation pipe of the cold liquid circulation heat dissipation module is connected with a condensation pipe of the engine end to end. According to the scheme, the cold liquid circulation heat dissipation module can control condensate in the condensation pipe of the engine to stop circulating flow according to the closing signal and prevent the condensate in the condensation pipe of the engine from flowing back into the condensation pipe of the cold liquid circulation heat dissipation module. Therefore, the ...

Rice drying device of high energy utilization ratio

The utility model discloses a rice drying device of high energy utilization ratio, the power distribution box comprises a box body, one side of box is equipped with the feeder hopper, be equipped withsolid fixed ring on the inside just outer wall of feeder hopper intercommunication box, gu fixed ring fixes on the inside wall of box, the ripple rotary drum is connected to the exit end of feeder hopper, the both sides of ripple rotary drum are equipped with the bearing respectively, the bearing is established respectively on first spliced pole and second spliced pole, first spliced pole is fixed on the inside roof of box with the upper end of second spliced pole, be equipped with a plurality of ventholes on the lateral wall of ripple rotary drum, the exit end of ripple rotary drum is equipped with the ejection of compact. The utility model discloses a ripple rotary drum effect corn, the hot side that receives of messenger's corn lasts the change, and the while is ceaselessly insufflatedhot ...

High-strength and high-conductivity copper-base material and its prepn process

Acrylate/silicone-acrylate compound emulsion and method for preparing same

The invention discloses an acrylate/silicone-acrylate compound emulsion and a method for preparing the same. Acrylate emulsions are prepared from acrylate as a main monomer, polyoxyethylene alkyl ether ammonium sulfate as emulsifier and various functional monomers containing carboxyl and are compounded with an silicone-acrylate emulsion to prepare the novel compound emulsion. The process for preparing the compound emulsion is simple, and the compound emulsion not only has the good hydrophobicity, stain resistance, washability and recoatability of the silicone-acrylate emulsion, but also has the good film forming performance, glossiness and solvent resistance of the acrylate emulsion. The compound emulsion film has higher mechanical strength and stronger adhesive force, the problems that the silicone-acrylate emulsion film has lower strength, poor adhesion and the like are solved, and the application range of the silicone-acrylate emulsion film is enlarged. The acrylate/silicone-acrylate ...

Cathode steel bar overall seamless welding equipment capable of preventing magnetic field interference

The invention relates to electrolytic cell cathode component welding equipment which is suitable for being operated in large-magnetic-field environments and capable of preventing magnetic field interference and belongs to the field of aluminum electrolysis. The cathode steel bar overall seamless welding equipment capable of preventing magnetic field interference comprises a cathode steel bar and a bus steel bar which are disposed on a sizing block through dry dies. The cathode steel bar, the bus steel bar, the dry dies and the sizing block form a welding space. Soldering flux with a positive electrode and a negative electrode being inserted in is contained in the welding space. The welding equipment is high in welding efficiency, good in quality, evident in social benefits, and suitable for being operated in magnetic-field environments, power consumption is lowered evidently, and service life of the electrolytic cell can be prolonged by at least one year.

马来酸酐双酯型阳离子可聚合乳化剂的制备方法

A process for preparing the dual-ester cationic polymerizable emulfurizer from maleic acid an hydride includes such steps as the loop-opening reaction between maleic acid anhydride and long-chain alcohol in hydrocarbon solvent to generate the semi-ester of long-chain alkylmaleic acid anhydride, reaction on 2-(diethylamino)chloroethane hydrochloride in weakly alkaline condition to generate long-chain alkylalamine, and quaternary amination reaction on excessive benzyl bromide in organic solvent at 50-70 deg.C. The resultant emulsifier features excellent emulsifying performance, lower critical micellar concentration and high output rate.

Cu-Fe in-situ composite with added boron, silver and rare earth elements and preparation method thereof

The invention discloses a Cu-Fe in-situ composite with boron, silver and rare earth elements added and a preparation method thereof. The invention is characterized by adopting multimode comprehensive strengthening technology such as multi-micro alloying, solid solution strengthening, aging strengthening, fine grain strengthening, distortion strengthening, fiber strengthening and the like, using Cu as the base and adding a little Fe and trace Ag and B, rare earth or rare earth compounds to prepare the high strength and high conductivity copper alloy material through smelting, casting, hot forging or hot rolling, solid solution treatment, cold rolling or cold drawing, aging and the like. The prepared material has the advantages of high strength, good electric and thermal conductivity, simple preparation process and low cost, thus realizing wide application in the fields such as electronics, information, transportation, energy, metallurgy, electromechanics and the like.

Natural gas engine cooling system

The invention discloses a natural gas engine cooling system. The system comprises a natural gas supply module, a gas inlet module, a gas outlet module, a first heat exchange module, a second heat exchange module and an engine. The supply module is connected with the engine through a first gas pipeline; the gas inlet module is connected with the engine through a second gas pipeline; each heat exchange module comprises two heat exchange pipelines; the supply module comprises first and third heat exchange pipeline outlets and second and fourth heat exchange pipeline inlets; the air inlet module comprises a first heat exchange pipeline inlet and a second heat exchange pipeline outlet; outlets of the first heat exchange pipeline and the second heat exchange pipeline are respectively communicated with inlets of the first heat exchange pipeline and the second heat exchange pipeline through heat exchange pipelines; the exhaust module is connected with the engine through a third gas pipeline; the ...

Process for preparing surface layer or thin-wall parts of amorphous tantalum oxide

A process for preparing the surface layer or thin-wall element of amorphous tantalum oxide includes such steps as generating the surface layer or thin-wall element with tantalum in low-temp. H2 or N2plasma atmosphere (which is composed of tantalum nitride and the sosoloid of nitrogen in tantalum) and anodizing the surface layer of thin-wall element in fused nitrate of the metal in 1A or 2A family. Its advantages include low roughness, high compactness, hardness and resistivity, and good anticorrosion performance to alkali.

Acrylate/silicone-acrylate compound emulsion and method for preparing same

The invention discloses an acrylate/silicone-acrylate compound emulsion and a method for preparing the same. Acrylate emulsions are prepared from acrylate as a main monomer, polyoxyethylene alkyl ether ammonium sulfate as emulsifier and various functional monomers containing carboxyl and are compounded with an silicone-acrylate emulsion to prepare the novel compound emulsion. The process for preparing the compound emulsion is simple, and the compound emulsion not only has the good hydrophobicity, stain resistance, washability and recoatability of the silicone-acrylate emulsion, but also has the good film forming performance, glossiness and solvent resistance of the acrylate emulsion. The compound emulsion film has higher mechanical strength and stronger adhesive force, the problems that the silicone-acrylate emulsion film has lower strength, poor adhesion and the like are solved, and the application range of the silicone-acrylate emulsion film is enlarged. The acrylate/silicone-acrylate ...

Directivity large hole and three-dimensional groove combined non-contact type mechanical sealing structure

The invention provides a directivity large hole and three-dimensional groove combined non-contact type mechanical sealing structure. The structure comprises a mechanically-sealed dynamic ring and a static ring. The end face of the dynamic ring and the end face of the static ring are provided with a sealing dam in a shape of an inclined face converging in the radial direction. At least one of the end face of the dynamic ring or the end face of the static ring is provided with directivity large holes (3) evenly distributed in a convergence mode and various three-dimensional groove shapes (4 and 5). The directivity large holes are provided with the directivity and shallow slots of the millimeter scale. The three-dimensional groove shapes are shallow grooves of the micrometer scale or deep grooves of the millimeter scale and are evenly distributed in the upstream portion or the downstream portion or the upstream portion and the downstream portion of the sealing end faces in the peripheral direction ...

Aluminum steel interface reductant

The invention discloses an aluminum steel interface reductant. The aluminum steel interface reductant is formed by mixing paraffin and zinc powder with the mass percent of 100:2-100:8, and the granularity of the zinc powder is 450-550 meshes. The aluminum steel interface reductant can protect aluminum steel interfaces from being polluted by oxygen, water and the like in air under the condition of high temperature and high pressure, aluminum steel is protected from oxidization, and the aim of elementary substance permeation combination is achieved.