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.

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 ...

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.

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.

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 ...

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 ...

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.

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

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 ...

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.

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 ...