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108results about How to "Add steps" patented technology

Composite conductor application of carbon nano tube fiber and preparation method thereof

The invention discloses composite conductor application of carbon nano tube fiber and a preparation method thereof. The invention is characterized in that a high strength carbon nano tube fiber material is combined with electroplating or chemical plating surface treatment process, and conductive metal coating is compounded on the carbon nano tube fiber, thus obtaining a carbon nano tube composite conductor with light weight, high strength and high electric conduction. The preparation method includes the following steps: firstly high strength carbon nano tube fiber material is prepared, and then chemical plating or electroplating is adopted to prepare uniform metal coating on the surface of fiber, thus obtaining the carbon nano tube composite conductor. The type of metal coating and the thickness of metal coating are controlled, so that the conductivity of carbon nano tube conductor can be consistent with the conductivity of metal body. The application and preparation method of the invention are simple and feasible, step is simple, and repeatability is good, thus being applicable to mass production, thereby having significance in development of novel superfine conductor with light weight, high tenacity and high strength and in showing potential application value thereof in electronic industry.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Refractory metal alloy ultrathin plate and foil, as well as producing method of plate

The invention discloses a refractory metal alloy ultrathin plate, a foil, and a producing method of the plate. The method for producing the ultrathin plate comprises the following steps of: (1) uniformly mixing the raw material, namely 50-99% of tungsten powder or molybdenum powder and 50-1% of one or more of the following materials of iron powder, nickel powder and copper powder with ethanol so as to obtain a mixture, wherein the usage of the ethanol is relatively lower than 0.5% of the total weight of the raw material; (2) preheating the mixture at 120-140 DEG C, and pressing after uniform heating, so that a raw slab with the thickness of 0.3-0.9millimeter is produced; and (3) sintering and cooling the raw slab under an anaerobic condition, so that the refractory metal alloy ultrathin plate is obtained. According to the producing method, a binding agent is not added, so that a step for removing the binding agent during the subsequent processes is reduced, the material purity is ensured, moreover, the production cost is also greatly lowered, and the production efficiency is increased. The refractory metal alloy ultrathin plate has a uniform internal organizational structure and has the thickness of 0.25-0.8millimeter, and one to six passes of rolling or short-time grinding only needs to be carried out subsequently, so that a high-specific-gravity foil product with the thickness of 10-50mu m can be produced.
Owner:上海瑞钼特科技股份有限公司

Method for extracting human serum albumin from plasma and increasing yield

The invention relates to a method for extracting human serum albumin from plasma and increasing the yield. By adoption of the method, the problems of extracting recovered human serum albumin from the plasma and increasing the yield can be effectively solved. The adopted technical scheme is as follows: the method comprises the following steps of: combination and melting of the plasma, preparation and pressing filtration of components I, II and III, preparation and pressing filtration of a component IV, preparation and pressing filtration of a component V, precipitation, dissolving and filtration of the component V, refined purification of the component V, ultrafiltration dialysis and concentration, preparation, pasteur inactivation, bacteria removal and filling, incubation and verification; the preparation and pressing filtration of the component IV comprise the following steps of: adding physiological saline with the temperature of 0 DEG C and the volume of 1/10 of that of the supernatant of the prepared components I, II and III, using acetate buffer solution with pH of 4.0 to adjust the pH value of the solution to 5.80-5.90, adding alcohol with the temperature of minus 15 DEG C and the volume concentration of 95%, and enabling the final volume concentration of the alcohol to reach 40%. The method has the advantages that the production process is smoother and simple, the yield of the human serum albumin is increased and the economic and social benefits are large.
Owner:BANGHE PHARMA CO LTD

Hydrogenation catalyst using cellular titanium dioxide as carrier and preparation method thereof

The invention discloses a hydrogenation catalyst using a cellular titanium dioxide as a carrier and a preparation method thereof. The catalyst is characterized by comprising cellular titanium dioxide carrier, TiO2-C composite coating and precious metal Pd. The TiO2-C composite coating has a thickness of 1-100 mum, a load of 1-10% of the weight of the cellular titanium dioxide carrier and an abscission rate no more than 3%. The precious metal Pd has a load of 0.1-1% of the weight of the cellular titanium dioxide carrier and a load depth of 1-100 muM. Compared with a prior art, the invention has the following advantages: first, the TiO2-C composite coating has high adhesion rate with cellular titanium dioxide carrier, and has smooth coating surface, no crack and low coating abscission rate; second, immersion depth of the precious metal Pd can be effectively regulated by controlling the thickness of the TiO2-C composite coating; and third, the catalyst has the advantages of simple preparation technology, good hydrogenation performance and suitability for industrialized production. The hydrogenation catalyst of the invention is suitable to be used as a hydrogenation catalyst for aromatic aldehydes like crude terephthalic acid or p-carboxy benzaldehyde.
Owner:CHINA PETROLEUM & CHEM CORP +1

Three-claw opening-shrinking machine synchronized through connecting rods

ActiveCN102649146AImprove deformation conditionsEasy to moveGearingEngineeringArm moving
A three-claw opening-shrinking machine synchronized through connecting rods comprises a supporting seat, a telescopic arm, a first rotating arm, a second rotating arm, a first jaw, a second jaw, a third jaw, a first connecting rod mechanism and a second connecting rod mechanism, wherein the telescopic arm is connected to the supporting seat and can move up and down; the first rotating arm and the second rotating arm are symmetrically positioned on both sides of the telescopic arm respectively; the first rotating arm and the second rotating arm are rotationally connected to the supporting seat through a first pin shaft and a second pin shaft respectively; the first jaw, the second jaw and the third jaw are connected to the first rotating arm, the second rotating arm and the telescopic arm respectively; the first connecting rod mechanism and the second connecting rod mechanism are symmetrically positioned on both sides of the telescopic arm respectively; the top ends of the first connecting rod mechanism and the second connecting rod mechanism are fixed on the first rotating arm and the second rotating arm through the first pin shaft and the second pin shaft respectively, and the lower ends are hinged together; and the lower end of the telescopic arm is connected to the hinged part of the lower ends of the first connecting rod mechanism and the second connecting rod mechanism. Under the action of an acting cylinder and through the first connecting rod mechanism and the second connecting rod mechanism, the first rotating arm and the second rotating arm rotate around the axial lines of the first pin shaft and the second pin shaft, the telescopic arm moves telescopically on the supporting seat, the first jaw, the second jaw and the third jaw are driven by the first rotating arm, the second rotating arm and the telescopic arm to act simultaneously, and the jaws shrink or open.
Owner:MCC CAPITAL ENGINEERING & RESEARCH +1

Porous hydroxyapatite flower-like microspheres and preparation method thereof

The invention discloses porous hydroxyapatite flower-like microspheres and a preparation method thereof. The preparation method comprises the following steps: adding 80 DEG C distilled water into CaO to slake the CaO into 1-10 wt% Ca(OH)2 slurry, introducing a CO2/N2 gas mixture into the slurry at room temperature while mechanically stirring, and stopping the reaction when the pH value of the reaction system reaches 7; under the conditions of heating and stirring, adding Al(OH)3 and a phosphate solution, wherein an NaOH solution is added in the reaction process to keep the pH value of the reaction system at 10.0; after some time, centrifuging, and washing the precipitate until the pH value of the solution is approximate to a neutral state; and centrifuging, and drying to obtain the porous hydroxyapatite flower-like microsphere powder product. The invention does not need to add any complex organic substance, polymer or the like, and also does not need to add any operation step for removing the template after the reaction; meanwhile, no impurity appears in the product, and thus, the method is simple to operate and low in cost, thereby laying foundation for industrial production; and the prepared porous hydroxyapatite flower-like microspheres have huge application prospects in the fields of tissue engineering, drug delivery and the like.
Owner:NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A

High-efficiency air filter used in cleaning workshop

The invention relates to the technical field of air purification, and discloses a high-efficiency air filter used in a cleaning workshop. The air filter comprises a left-side aluminum frame, a gastight member and a filter substrate; and the air filter is composed of the left-side aluminum frame and a right-side aluminum frame, two sealing strips are installed between the left-side aluminum frame and the right-side aluminum frame, and the two sealing strips surround the outer sides of the left-side aluminum frame and the right-side aluminum frame. According to the air filter provided by the invention, when the air filter is assembled, workers only need to open an outer shell and put the filter substrate into the shell, so that the filter effects of the filter can be restored just by replacing the filter substrate, and when the filter substrate is replaced, the operation process is more optimized; the assembly-type filter is more convenient and quick to clean, and the filter substrate can be taken out only by opening the outer shell of the filter; and inner cleaning of the frames can be performed by utilizing a cleaning device, so that the problem that inner cleaning of a filter substrate of a conventional filter cannot be performed is solved, and the filter is always kept in a relatively-clean state.
Owner:盐城亿安建筑钢品科技有限公司

24-valence pneumococcus polysaccharide vaccine and identification method thereof

The invention relates to a 24-valence pneumococcus polysaccharide vaccine and an identification method, namely an immune rate scatter turbidimetry thereof. The immune rate scatter turbidimetry at least comprises the steps of enabling a polysaccharide antigen to be in contact with corresponding antibodies so as to form an antigen-antibody compound, and measuring the reaction rate value of the antigen-antibody compound by virtue of the immune rate scatter turbidimetry. The rate scatter turbidimetry is a technical measure established based on an immunochemical method, and the intensity change ofscattered light of antigen-antibody compound particles suspended in a small cup can be measured by virtue of the rate scatter turbidimetry, the reaction rate is measured and is in a linear relation with the concentration of an antigen and/or an antibody in a certain range, and the light intensity is changed once the reaction is started, so that a reaction result can be obtained within dozens of seconds. The method is strong in specificity and high in sensitivity, the detection time is saved, and the antigen is in direct contact with the antibody, so that the detection of low-concentration samples is promoted, and the method can be applied to the identification of a stock solution and/or a semi-finished product and/or a finished product in the production process of the vaccine.
Owner:成都安特金生物技术有限公司

Automobile exhaust pipe manufacture welding treatment process

The invention relates to an automobile exhaust pipe manufacture welding treatment process. A bottom plate, a bearing and containing device, polishing devices and a regulation device are included. Thebearing and containing device is installed at the upper end of the bottom plate. The polishing devices are symmetrically arranged in the middle of the bearing and containing device. The polishing devices are connected with the bearing and containing device in a sliding fit manner. The automobile exhaust pipe manufacture welding treatment process can solve the problem that when an existing device conducts cleaning for weld beadings generated during welding of silencers in automobile exhaust pipes and connection pipes, angle regulation cannot be conducted during polishing, the situation that thedevice cannot be perfectly matched with the weld beadings is likely to be caused, and therefore removal of the weld beadings is not complete and the polishing effect is reduced, the problem that dueto the fact that the two connection pipes cannot be cleaned at the same time, the polishing efficiency is reduced and the problem that due to the fact that weld beadings generated on the other placesof the surfaces of the connection pipes cannot be removed under the condition of not changing the positions of the connection pipes, the weld beading polishing steps are increased and the polishing efficiency is reduced.
Owner:江苏佳泰汽车配件有限公司

Communication wire and cable insulation sheath

The invention relates to a communication wire and cable insulation sheath. The sheath comprises a mounting cover, sleeves, a fixing rod and a fixing unit, the two sleeves are mounted in the inner sideof the mounting cover in a clamping manner; the left end of the sleeve in the right side of the mounting cover is connected with the right end of the sleeve in the left side of the mounting cover ina clamping manner; fixing holes are formed in the front side and the rear side of the mounting cover, a fixing rod is installed in the fixing hole located in the front end of the mounting cover in a sliding fit mode, and a fixing unit is installed in the fixing hole located in the rear end of the mounting cover in a sliding fit mode. The insulation sheath of the invention can be used to solve theproblems that in the existing process that an insulation sheath wound on a cylinder is used for sleeving and laying an electric wire and a cable, sleeving is difficult and sometimes can be conducted only after the insulating sheath is cut off, and the efficiency of sleeving the insulating sheath on the electric wire and the cable is low; and that wires and cables are not fixed, the wires and cables are easy to displace and bend when buried in soil, and bent parts on the surfaces of the wires and cables are damaged.
Owner:佛山市顺德区北滘镇永盈绝缘材料有限公司
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