34results about How to "Product quality qualified" patented technology

The invention relates to chromium-free passivation solution of galvanized coating, which solves the defect in an existing technique that the corrosion resistance of passive film is far different from the corrosion resistance of the passive film which adopts chromate originally. The technical measure is to use the chromium-free passivation solution on the surface of galvanized steel sheet, the chromium-free passivation solution is characterized in that components of the passivation solution and the method for preparing are that: molybdate: 80-160g / L, tungstate: 16-32g / L, acrylic acid: 15-50g / L, hydrogen peroxide: 20-40g. / L, and phytic acid: 5-10g / L, others are water, the pH value is 1.5-2.5, and phosphoric acid is used to regulate the pH value. The passivation solution of the invention does not contain chromium which pollutes environment and is environmental protection type passivation solution, the fog-corrosion retardancy resistance of passive film is equivalent to that of chromate passive film, the equipment conditions are not changed, and the product quality is qualified and satisfies the requirements of users.

The invention provides an industrialized cultivation method of Morchella importuna. The method is characterized by comprising steps as follows: (1) preparation of a culture substrate; (2) preparation of a liquid strain; (3) mycelium culture; (4) fruiting management: mycelia in the step (3) are transferred to a fruiting room for fruiting management, and the fruiting management comprises management in a primordium formation promoting period, management in a mushroom bud formation period, management in a growth period and management in the manure period. According to the method, crop waste is taken as a raw material for preparation of a culture medium, liquid strains are used for sowing, industrialized cultivation of Morchella is completely realized indoor, the method is simple to operate, low in cost, short in cycle, controllable in quality and capable of realizing industrialized production all year round, and one pollution-free, pleasantly scented and delicious green product is obtained.

The invention discloses a method for synthesizing ferric phosphate by utilizing waste phosphate generated by precipitation of trace heavy metal. The method is characterized by utilizing the waste phosphate as a phosphorus source, mixing the phosphorus source with an ferric-containing solution or mixing the phosphorus source with a ferrous solution and hydrogen peroxide after dissolving, synthesizing the ferric phosphate under a low-temperature condition, and filtering, thus obtaining filtrate and filter residue; recycling other valuable metal in the filtrate, adding phosphoric acid after washing and pulpifying the filter residue, converting under the condition that the temperature is 90 DE C, carrying out suction filtration after keeping warm, and drying free water in a suction filtrationmaterial, thus obtaining ferric phosphate dihydrate; calcining, thus preparing an anhydrous ferric phosphate product. The method for synthesizing the ferric phosphate by utilizing the waste phosphategenerated by precipitation of the trace heavy metal, disclosed by the invention, is simple in operation, a prepared ferric phosphate product can meet battery-grade standard requirements, the purpose of recycling phosphorus from the waste phosphate is realized, and the synthesis cost of the ferric phosphate can be obviously reduced; meanwhile, waste residue can be recycled, the additional value ofthe waste residue can be increased, and the problem of environment protection caused by the waste phosphate is also solved.

The invention relates to a formula of a blood filtration replacement fluid which is special for citrate anticoagulation, a preparation method and a usage thereof. With the components of sodium citrate, sodium chloride, potassium chloride, sodium lactate, citric acid and so on, the replacement fluid is mainly used for blood filtration and blood dialysis filtration of the patients with acute renal failure or high risk bleeding due to multiple organ failure etc., and can solve the problems of easy occurrence of hypernatremia and alkali poisoning in the prior citrate anticoagulation, thus facilitating the clinical usage. The replacement fluid has the advantages of strong applicability, exact efficacy and low toxicity and side effects; the preparation process is simple; the quality is stable, safe and effective; the feasibility is strong; the repeatability is high; and the replacement fluid is applicable to the large-scale production and the promotion of the clinical application, thus being the ideal blood filtration replacement fluid for blood filtration, blood dialysis filtration, continuous renal replacement therapy and so on. The demand of the blood dialysis increases along with the increasing number of the patients with the end-stage renal failure year by year, so the blood filtration replacement fluid can generate more tremendous economic and social benefits.

The present invention relates to a formula of the tube-sealing solution sodium citrate injection and the preparation method and the usage. The in vitro central venous catheter simulation device designed by the present invention has simple equipment, low cost and good simulation, which provides the test device for the in vitro screening of the tube-sealing solution for the pre-clinical studies of the tube-sealing solution. The screened tube-sealing solution has the dual-function of the prevention and treatment of the blood coagulation and anti-infection, the pharmacological effect is stronger, the efficacy is accurate, the nature is stable; furthermore, the present invention has safety, low toxicity, controllable quality, direct use and better effect, which can overcome the two difficulties of blood coagulation and infection in the sealing tube, avoid the adverse effects of antibiotics to the patients and have significant advantages compared with the similar products. In addition, the sources of the raw materials are rich, the preparation process is simple, the feasibility is strong, so the present invention is applicable to large-scale production and easy to popularize. The demand of the blood dialysis is increasing along with the increasing number of the patients with the medium and end-stage renal failure year by year; therefore the present invention can generate tremendous social and economic benefits in a short period.

The invention relates to a rounding and shaping die for a straight-bar stator iron core, which comprises a rack, a jacking shaping mechanism, a pressing shaping mechanism and rounding shaping mechanism. According to the invention, a shaping center mold core is firstly sleeved with a straight stator core in advance; then a plurality of rounding shaping assemblies are used for jacking and pressing the straight-bar stator iron core in sequence; the plurality of rounding shaping assemblies are used for pressing the straight-bar stator iron core into a circular ring shape; the two ends of an opening of the straight-bar stator iron core abut against each other, so that the roundness of the straight-bar stator core is ensured; then the upper end surface and the lower end surface of the iron coreinner circle of the straight-bar stator iron core are jacked up and down through the jacking shaping mechanism and the pressing shaping mechanism; the jacking shaping mechanism and the pressing shaping mechanism are used for pressing and aligning all parts of the same horizontal plane of the top of the straight-bar stator core, the pressing shaping mechanism is used for pressing and aligning all parts of the same horizontal plane of the bottom of the straight-bar stator core; and finally, it is guaranteed that the roundness and perpendicularity of the welded stator core meet the requirements,and the product quality is qualified.

The invention relates to cefmetazole sodium composition sterile powder for injection, which comprises 99.0 to 99.9 weight percent of cefmetazole sodium and 0.1 to 1.0 percent of sodium benzoate. The cefmetazole sodium is cefmetazole sodium crystal and the primary granularity of the cefmetazole sodium ranges from 80 to 120 mu m. The cefmetazole sodium composition sterile powder for injection provided by the invention contains the cefmetazole sodium crystal, and has the advantages of large crystal granularity, uniform granularity distribution, qualified quality, and high stability.

The invention provides a flupirtine maleate capsule composition. The flupirtine maleate capsule composition contains flupirtine maleate and a solubilizer. The solubilizer is copovidone S630. The invention also provides a flupirtine maleate capsule preparation method having simple processes and quality controllability. a flupirtine maleate raw material and calcium hydrophosphate are mixed and sieved by a sieve of 60 meshes so that raw material and auxiliary material uniform mixing is guaranteed, a yield is improved and a production cost is reduced. The preparation method utilizes a dry granulation technology so that granule bulk density is large, and compared with the existing granules having small bulk density, the same weight of the granules obtained by the preparation method can be put into a small-volume capsule. The products obtained by the preparation method and the formula have qualified quality and stable drug effects and are conducive to large-scale production realization.

The invention provides a machining system and a machining method for spot facing and solves the problems that during existing spot facing, the machining dimensional tolerance is large, and the form and location tolerance and surface roughness are out of tolerance greatly. The machining system comprises a clamp unit and a cutter unit. The clamp unit comprises a clamp bottom plate, a positioning and pressing assembly, an auxiliary supporting assembly and a positioning and guiding assembly. The positioning and pressing assembly is arranged between the clamp bottom plate and a workpiece, connected with the clamp bottom plate and the workpiece and used for fixedly installing the workpiece. The auxiliary supporting assembly is arranged between the clamp bottom plate and the workpiece, one end of the auxiliary supporting assembly is connected with the clamp bottom plate, and the other end of the auxiliary supporting assembly abuts against the side wall of the workpiece and is used for adjusting the relative position between the clamp bottom plate and the workpiece. The positioning guide assembly is arranged between the clamp bottom plate and the workpiece, one end of the positioning guide assembly is connected with the clamp bottom plate, and the other end of the positioning guide assembly is connected with the workpiece and used for positioning the plane and an inner hole of the workpiece. The cutter unit comprises a cutter bar and a cutter body, the cutter bar is sleeved with the cutter body, and the cutter body is used for spot facing.

The invention relates to a method for synthesizing an aminocarboxylic acid class compound, in particular to a method for synthesizing lauroyl L-carnitine hydrochloride, which belongs to the technical field of the preparation of a medicine intermediate and a food additive. The method for synthesizing the lauroyl L-carnitine hydrochloride is characterized by comprising the following steps of: (1) taking L-carnitine as a raw material and acetic acid as a solvent, adding lauroyl chloride, decompressing after heating and reacting, distilling off the acetic acid, adding acetone, stirring, dispersing, cooling, crystallizing, then leaching and drying to obtain a crude product; and (2) heating the obtained crude product by using ethanol or methanol, dissolving, leaching when heating to obtain filtrate, decompressing, distilling, concentrating, distilling off part of the ethanol or the methanol, then cooling, adding the acetone, stirring evenly, cooling, crystallizing, then filtering and dryingto obtain a pure product of the lauroyl L-carnitine hydrochloride. The invention has the characteristics of simple and easy operation, little pollution, short reaction period and low cost and is suitable for the industrial scale-up production, and the yield at least reaches 92 percent.

The invention relates to the field of petrochemical sump oil etratment and discloses a cleaning treatment method for tank cleaning crude oil. The method comprises the following steps of: (1) introducing the tank cleaning crude oil into an emptying tower of a delayed coking device, and contacting the tank cleaning crude oil with second high-temperature oil gas generated during the coke cooling of adelayed coking coke tower for pretreatment to obtain a light liquid containing a light component and water, a first heavy component and a first mechanical impurity; (2) introducing the light component into a delayed coking fractionating tower for fractionation to obtain naphtha and diesel oil; (3) returning the first heavy component and the first mechanical impurity as quenching oil to the coke tower top of the delayed coking device. The method has the advantages of high recovery rate and low cost, and can achieve the purpose of green recovery.

The invention relates to chromium-free passivation solution of galvanized coating, which solves the defect in an existing technique that the corrosion resistance of passive film is far different from the corrosion resistance of the passive film which adopts chromate originally. The technical measure is to use the chromium-free passivation solution on the surface of galvanized steel sheet, the chromium-free passivation solution is characterized in that components of the passivation solution and the method for preparing are that: molybdate: 80-160g / L, tungstate: 16-32g / L, acrylic acid: 15-50g / L, hydrogen peroxide: 20-40g. / L, and phytic acid: 5-10g / L, others are water, the pH value is 1.5-2.5, and phosphoric acid is used to regulate the pH value. The passivation solution of the invention does not contain chromium which pollutes environment and is environmental protection type passivation solution, the fog-corrosion retardancy resistance of passive film is equivalent to that of chromate passive film, the equipment conditions are not changed, and the product quality is qualified and satisfies the requirements of users.

The invention discloses a color-differentiation wire stripper which is composed of a wire smoothening device, a color identification device, and a color-differentiation wire cutting device. The wire smoothening device is composed of a base, a T-shaped holding plate, a wire smoothening motor, a clamping lifting cylinder, up-and-down clamping cylinders, a left-and-right clamping cylinder, a cylinder mounting plate, lower wire smoothening clips, upper wire smoothening clips, and a compass type wire branching fork. The color identification device is composed of a camera, a color identification system, and a PLC data storage circuit. The color-differentiation wire cutting device is composed of a base, tool rests, a tool rest holding plate, wire cutting motors, tool rest guide rails, an inner sheath stripping cylinder, upper tool rest clamping plates, wire cutting cylinders, moving blade holding plates, moving blades, and static blades. The color-separation wire stripper of the invention has the characteristics of reasonable structure design, simple and convenient operation, precision processing, high degree of automation, human cost saving, efficient and high-quality processing and production, and the like.

The invention relates to a process for producing an Al2O3 ball. The process comprises the following steps: adding a pH value adjusting agent, a control agent and water into aluminum-containing raw materials to be reacted, uniformly mixing up at room temperature, stirring and pulping, keeping the temperature of the mixing pulp to be at 100-400 DEG C and stirring and pulping for 0.5-30 hours, balling and roasting. As a plurality of aluminum-containing raw materials can be used as production raw materials, the process is wide in application range, different market requirements can be met and the produced products are qualified only if the reagents or use amount of the reagents are changed without changing the production equipment or steps.

The invention discloses a method for synthesizing branched chain amino acid nitrate, and belongs to a method for synthesizing amino acid mixed nitrate. The method comprises the following steps: adding 65 percent by mass of nitric acid into a reactor; slowly heating to a certain temperature under stirring; sequentially adding leucine, valine and isoleucine, insulating and reacting for a while; filtering the solution in the reaction, cooling the filtrate to crystalize; drying the separated crystal product to obtain a solid product of the branched chain amino acid nitrate. By adopting the method for synthesizing the mixed branched chain amino acid nitrate, a pure product can be directly obtained by reactions in the method. The method is simple and practical in steps, short in time, high in production efficiency, can produce products with qualified quality and high yield, does not produce wastewater, waste gas or waste residues, and is applicable to industrial large-scale production.

The invention provides an industrialized cultivation method of Morchella importuna. The method is characterized by comprising steps as follows: (1) preparation of a culture substrate; (2) preparation of a liquid strain; (3) mycelium culture; (4) fruiting management: mycelia in the step (3) are transferred to a fruiting room for fruiting management, and the fruiting management comprises management in a primordium formation promoting period, management in a mushroom bud formation period, management in a growth period and management in the manure period. According to the method, crop waste is taken as a raw material for preparation of a culture medium, liquid strains are used for sowing, industrialized cultivation of Morchella is completely realized indoor, the method is simple to operate, low in cost, short in cycle, controllable in quality and capable of realizing industrialized production all year round, and one pollution-free, pleasantly scented and delicious green product is obtained.

The invention discloses a new synthesizing method of propionyl left-handed carnitine hydrochlorate, which comprises the following steps: 1. adopting inner salt of left-handed carnitine as raw material and propionic acid as solvent; adding propionyl chloride; heating to react; decompressing to evaporate propionic acid; adding acetone; stirring to disperse; cooling to evolve; sucking; drying to obtain rough product; 2. heating to dissolve rough product through alcohol or carbinol; sucking the filtrate; decompressing; distilling to condense; evaporating partial alcohol or carbinol; cooling; adding acetone to stir evenly; cooling to evolve; filtering; drying; obtaining the pure product.

The invention provides a flupirtine maleate capsule composition. The flupirtine maleate capsule composition contains flupirtine maleate and a solubilizer. The solubilizer is copovidone S630. The invention also provides a flupirtine maleate capsule preparation method having simple processes and quality controllability. a flupirtine maleate raw material and calcium hydrophosphate are mixed and sieved by a sieve of 60 meshes so that raw material and auxiliary material uniform mixing is guaranteed, a yield is improved and a production cost is reduced. The preparation method utilizes a dry granulation technology so that granule bulk density is large, and compared with the existing granules having small bulk density, the same weight of the granules obtained by the preparation method can be put into a small-volume capsule. The products obtained by the preparation method and the formula have qualified quality and stable drug effects and are conducive to large-scale production realization.

The invention relates to the field of glue, in particular to a paper adhesive. The paper adhesive comprises the following components in parts by mass: 150-180 parts of vinyl acetate, 100 parts of polyvinyl alcohol, 10 parts of starch, 2 parts of ammonium persulfate, 2 parts of an OP10 emulsifier, 20 parts of glyoxal, 1 part of baking soda, 3-5 parts of oxalic acid and the balance of water. The paper adhesive has the advantages that the raw materials are harmless, the compounding is reasonable, the process is perfect, the efficiency is high, no harm is caused, and the product quality is qualified.

The invention discloses a high-speed wire rod air cooling roller way slow cooling process control method. The process comprises heating furnace heating, finishing mill rolling, spinning and Stelmor air cooling roller way controlled cooling. The slow cooling process control method comprises the following steps: (1) the rolling temperature of a finishing mill is 1000 DEG C; (2) the spinning temperature ranges from 940 DEG C to 1000 DEG C; and (3) by controlling the speed of an air cooling roller way, the number of started draught fans and the speed of the draught fans, the slow cooling time of steel materials on the air cooling roller way within the interval of 727 to 500 DEG C is prolonged, and after pearlite transformation is promoted, secondary cooling is conducted till the coil collecting temperature is reached. According to the slow cooling process control method provided by the invention, the problem that the mechanical property characteristic values of HPB300 and HRB400E products cannot meet the national standard after the productivity of high-speed wire rods is improved can be effectively solved, the qualified product quality and normal accelerated production can be ensured, and the improvement of enterprise productivity is promoted.

A urea-based compound fertilizer without additive comprises urea, ammonium chloride, monoammonium phosphate, potassium chloride and ammonium bicarbonate, and the weight part proportion is urea 2.5 whose N content is 46%, ammonium chloride 37.3 whose N content is 23.5%, monoammonium phosphate 37.5 whose P2O5 content is 58%, potassium chloride 24.2 whose K2O content is 60%, ammonium bicarbonate 5 whose N content is 17%. The invention has the advantages of good appearance quality and good water-solubility due to not charging filler in the urea-based compound fertilizer. The production cost is only 1740 Yuan / t, which saves 100 Yuan / t in contrast to the urea-based compound fertilizer charged by filler. Simultaneously, the product quality is eligible, and the manufacturing technique is simple through pelleting only after mixing raw materials.

The invention relates to the technical field of electroplating, and in particular relates to an electroplating solution and a preparation method thereof. The electroplating solution consists of the following components: 70 to 100 g / L nickel sulfate, 40 to 50 g / L zinc sulfate, 25 to 35 g / L boric acid, 25 to 35 g / L potassium thiocyanate, 40 to 60 g / L ammonium nickel sulfate, 1 to 2 ml / L hydrogen peroxide, 1 to 2 g / L activated carbon, the balance of deionized water or pure water. The pH value of the electroplating solution is adjusted to 4.5 to 5.5, the temperature of the electroplating solution is adjusted to 30 to 36 DEG C, and when in electroplating, the current density of the electroplating solution is 0.1 to 0.4 A / dm<2>. The electroplating solution is simple in process; and the obtained product is qualified in quality, has no scaling phenomenon, is uniform in color, has no phenomenon of local whitening points, has a smooth surface and has no roughness.

A hoisting rod foam model processing device is characterized in that a vertical positioning upright is mounted on the left portion on a plane work platform; the lower portion of the positioning upright is bent outwards to ninety degree and combined with the work platform as a connection face; a horizontal positioning bar opening is opened on the connection face; the positioning bar opening is connected to the work platform through a positioning pin set thereon; right and left lead fixation plates are mounted on the lower surface of the work platform at the right side of the positioning upright; leads are mounted on the lead fixation plates; an arc-shaped electrothermal wire plate is mounted on the work platform above the lead fixation plates; and two ends of the electrothermal wire plate are connected to the leads. According to the invention, the problems of bad quality and low work efficiency of manually manufacturing a hoisting rod foam model are solved, thus the hoisting rod foam model processing device provided herein is widely suitable for the utilization of processing hoisting rod foam models in automobile industry.

The invention relates to the field of petrochemical waste oil treatment, and discloses a method for cleaning crude oil in tanks. The method includes the following steps: (I) passing the crude oil in tanks into the vent tower of a delayed coking device, and coking with the coke produced in the delayed coking tower The second high-temperature oil-gas contact is carried out for pretreatment to obtain light liquid containing light components and water, the first heavy component and the first mechanical impurities; (II) passing the light components into a delayed coking fractionator for fractionation to obtain petroleum Naphtha and diesel oil; (III) the first heavy component and the first mechanical impurity are returned to the top of the coke tower of the delayed coking unit as the quenching oil. This method has high recovery rate, low cost and can achieve the purpose of green recovery.

The invention relates to an electric heating superconductive radiator which comprises a radiator shell, wherein the upper end of the shell is provided with a liquid filling opening and a seal cover covered on the filling opening; the lower part in the shell is provided with a sealed heating chamber; an electric heating element is installed in the heating chamber, and superconductive liquid is filled in the shell. The electric heating superconductive radiator is characterized in that the liquid level of the superconductive liquid is positioned at the upper end in the shell; the electric heating element installed in the heating chamber comprises a surface electric heating element and an insulation bracket sleeved on a main body of the element; the insulation bracket is connected with the inner wall of the heating chamber; and the surface electric heating element is connected with an electric control switch outside the radiator shell by electrode leads arranged at both ends. The technology has high heat supplying and warming speed, favorable heat radiation effect, low heat use cost, long service life of products, energy saving and environmental protection and is convenient to control.