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166results about How to "Quality standards" patented technology

Re-manufacturing machining process of surface of inner hole of hydraulic cylinder scrap guide sleeve

The invention relates to a re-manufacturing machining process of the surface of an inner hole of a hydraulic cylinder scrap guide sleeve. The process comprises the following steps that the hydraulic cylinder guide sleeve is cleaned in the machining early period; size repair is carried out on the hydraulic cylinder guide sleeve, and shot blasting is carried on the inner surface and the outer surface of the hydraulic cylinder guide sleeve; the inner surface and the outer surface of the hydraulic cylinder guide sleeve are cleaned and purified through acetone; self-fluxing nature powder is sprayed on an outer thread, the outer surface, the wall surface of the inner hole and grooves of the hydraulic cylinder guide sleeve; the inner diameter and the outer diameter of the hydraulic cylinder guide sleeve are remelt through medium-frequency induction heating equipment, aging treatment is carried out after the inner diameter and the outer diameter of the hydraulic cylinder guide sleeve are remelt; size machining is carried out on the hydraulic cylinder guide sleeve; QPQ processing is carried out on the surface of the hydraulic cylinder guide sleeve. The re-manufacturing machining process of the surface of the inner hole of the hydraulic cylinder scrap guide sleeve has the advantages that the scrap hydraulic cylinder guide sleeve is re-machined to the original size and original structure, the thread can be machined in the original position, the anti-corrosion performance and anti-tension performance of the hydraulic cylinder guide sleeve are improved, the service life of a hydraulic cylinder is prolonged, and cost is lowered.
Owner:HENAN WEITONG TECH +1

Automatic automobile trim coating device with sewing thread

The invention provides an automatic automobile trim coating device with a sewing thread. The coating device comprises a lower mold and an upper mold. The upper mold is provided with a lifting mechanism, and side pushing mechanisms for clamping workpieces on the lower mold are arranged on both sides of the lower mold. The lower mold comprises a lower mold body, lateral lower molds, a lower mold mounting plate, sewing thread middle jacking molds, a main spring component and an auxiliary spring component. Two symmetrical sewing thread middle jacking mold mounting grooves are formed in edge positions, close to both sides, of the lower mold body. The sewing thread middle jacking molds are mounted in the sewing thread middle jacking mold mounting grooves. The automatic automobile trim coating device has the advantages that the sewing thread middle jacking molds with positioning and suction functions and the side pushing mechanisms are added to the lower mold, automatic coating of trim products can be realized; front and back edges of a cover are sucked by vacuum suckers to guarantee the shape stability of the sewing thread during coating, the position degree and flatness of the sewing thread after coating are also ensured, and accordingly, the products meet quality standards.
Owner:CHANGCHUN FAWAY ADIENT AUTOMOTIVE SYST CO LTD

Air-jet loom weaving method with polyester cotton wrap yarn fabric

InactiveCN101418489AOvercoming the Disadvantages of DeformationReduce untwisting phenomenonLoomsWoven fabricsInsertion timeAir-jet loom
The invention discloses an air jet loom weaving method for a polyester cotton core-spun yarn fabric with a polyester filament as a core and cotton fiber wrapped outside polyester, which orderly comprises working procedures such as doubling, twist stabilization after twisting, warping and rebeaming, reeding, loom beam on-hook, adjustment of process parameters and so on. In the working procedure of batch warping, the rebeaming is performed on a sizing machine, and the sizing is not performed; during the reeding after the rebeaming, 50 to 100 percent of harness frame numbers are increased than the prior species according to the warp density; the weft-insertion time is adjusted to ensure that the weft-insertion time of previous group of auxiliary nozzles is longer than that of next group of the auxiliary nozzles and the weft-insertion time is orderly shortened in a step shape, and the entire auxiliary nozzles are synchronously closed at the same angle position. The working procedures after the adjustment effectively solve the problem that the dyeing of the polyester cotton core-spun yarn fabric has color difference after the polyester cotton core-spun yarn fabric is woven on an air jet loom, and ensure that the polyester cotton core-spun yarn fabric can be fully and normally woven on the air jet loom. The weaving efficiency can reach 96 percent, the rate of first-grade products when getting off the loom can reach more than 93 percent, woven cloth has qualified various indicators and fully satisfies the normal production of the dyeing and finishing, and no quality problem exists after the dyeing.
Owner:SHANDONG WOYUAN NEWFASHIONED FABRIC

Method for preparing aluminum-titanium intermediate alloy by recycling titanium scrap or titanium leftover material

The invention relates to a method for preparing an aluminum-titanium intermediate alloy by recycling titanium scrap and titanium leftover material, relates to a method for preparing an aluminum-titanium intermediate alloy, and aims at solving the problem of low recycling rate of the titanium scrap or titanium leftover material generated in the production process of existing titanium products. The preparation method comprises the following steps: (I) grinding the titanium scrap or titanium leftover material on a grinder, removing oil and drying, and packaging with aluminum foil into bags to obtain titanium blocks in bags; (II) melting pure aluminum in a smelting furnace to obtain molten aluminum; (III) increasing the temperature of the molten aluminum, adding part of the titanium blocks in bags by a bell jar press-in way, stirring for a period of time, adding the rest titanium blocks in bags, and continuously stirring to obtain the molten aluminum; (IV) removing gas by use of a rotary degasser, and performing slagging-off and casting and ingot formation to obtain the aluminum-titanium intermediate alloy. According to the method provided by the invention, the waste titanium scrap and titanium leftover material generated in the machining process of the titanium product are recycled, and then, the recycling rate of the titanium element reaches 85-90%.
Owner:HARBIN UNIV OF SCI & TECH

Straightening process for wedge-shaped plate

ActiveCN106391760AMeet the requirements of straightening process parametersQuality standardsCamWedge shape
The invention discloses a straightening process for a wedge-shaped plate. A 13-roller straightener is adopted. The roller spaces of a straightening roller system are arranged from large to small in a progressive decreasing mode. Four front rollers and four rear rollers of the straightening roller system are rising-falling straightening rollers. The straightening process comprises the specific steps that (1) the wedge-shaped plate serves as a variable thickness plate, and according to the parameters of the wedge-shaped plate, the roller space ti and rolling reduction hi corresponding to different plate thicknesses are calculated; (2) according to the parameters of the wedge-shaped plate, the wedge-shaped plate is subjected to plate thickness zoning; and (3) according to plate thickness zoning, different plate segments are straightened through roller sets, during straightening, the thin plate zone enters the straightener first, the four front rollers and the four rear rollers of the straightening roller system enters or leaves work according to the change of the plate thickness of the wedge-shaped plate during straightening, and thus the roller space is adjusted according to the change of the plate thickness until straightening is finished. Through the straightening process, the problem that straightening rollers of a traditional plate belt straightener cannot be adjusted on line under pressure during straightening is solved, thus rolling reduction and the roller spaces cam meet straightening process parameter requirements of the wedge-shaped plate, and the wedge-shaped plate with acceptable quality is obtained through straightening.
Owner:YANSHAN UNIV

Production process for producing high-grade coated white manila board by using ONP (Old News Paper) pulp instead of DIP (Deinked Pulp) pulp

The invention provides a production process for producing high-grade coated white manila board by using ONP (Old News Paper) pulp instead of DIP (Deinked Pulp) pulp, relates to the technical field ofpulp paper production, and in particular to the production process for producing high-grade coated white manila board by using ONP pulp instead of DIP pulp. The high-grade coated white manila board isproduced by using the following process steps: using the ONP pulp as a surface layer, using an OCC (Old corrugated container) pulp as a lining layer, using a mixture of sawdust pulp and OCC staple fiber and filament fiber pulp as a core layer, and using OCC pulp middle-length fiber pulp as a bottom layer; performing base paper making via a net portion, a pressing portion, a pre-drying portion, asurface sizing portion, and a hard calendaring portion; coating the raw paper after the papermaking by pre-coating, curtain-coating, back-coating, and top-coating; and then being subjected to soft calendering, coiling, rewinding, and storing to a warehouse. The high-grade coated white manila board produced by the production process provided by the invention has the following properties: a whiteness of 70-72 ISO, a dirt count the paper surface of 30-60 mm<2>/m<2>, a surface strength (IGT) of 1.5 to 2.0 m/s, a glossiness of the finished paper of 40%, an ink absorbency of 26-28%, and a smoothnessof 130-150S, wherein the covering performance of the coated white manila board meets the quality requirements of traditional high-grade coated white manila board, and the coated white manila board can be offset as many as 4 or 5 times and can be folded as many as 15-20 times.
Owner:LIANSHENG PAPER IND LONGHAI

Penicillin bottle handling method, penicillin bottle obtained through handling, and penicillin-bottled water for injection

The invention provides a penicillin bottle handling method, a penicillin bottle obtained through handling, and penicillin-bottled water for injection, and belongs to the technical field of medicine. The penicillin bottle comprises a bottle body and a butyl rubber plug. The penicillin bottle handling method comprises the following steps in any sequence: (1) handling the bottle body by utilizing an acid solution and an alkaline solution sequentially, carrying out cleaning till the pH value reaches 5.0-7.0, and carrying out drying and sterilization for standby application; and (2) handling the butyl rubber plug by utilizing the acid solution, the alkaline solution and warm water sequentially, carrying out cleaning till the pH value reaches 5.0-7.0, and carrying out sterilization for standby application. The invention further provides a preparation method of the penicillin-bottled water for injection. The preparation method comprises the following step: filling the penicillin bottle obtained through handling with the water for injection. The water or liquid medicine for injection accommodated in the penicillin bottle obtained according to the penicillin bottle handling method, or the penicillin-bottled water or liquid medicine for injection obtained according to the preparation method not only is qualified and high in stability, but also can be protected from chloride leakage, chloride out-of-specification and the like after standing for a long time, and is suitable for long-term preservation.
Owner:SANCAI SHIQI PHARMA CO LTD

Feeding system for spraying viscous material

ActiveCN104817344AReduce (or increase)High degree of automationEngineeringStorage tank
The invention discloses a feeding system for spraying a viscous material. The feeding system comprises a storage tank, a feeding pipe, a discharge pipe, a feeding pump, a spray pipe and a pressure adjusting pump, wherein the feeding inlet of the storage tank is communicated with the feeding pipe, the discharge hole of the storage tank is communicated with one end of the discharge pipe, the other end of the discharge pipe is communicated with the inlet end of the feeding pump and the outlet end of the feeding pump is communicated with the inlet of the spray pipe; the spray pipe is communicated with the pressure adjusting pump and then is communicated with a spray device, the pressure adjusting pump is electrically connected with a pressurizer, and the pressurizer is used for adjusting the pressure adjusting pump to keep the material be ejected from the spray device in a constant pressure state. Two pump bodies can be arranged to provide enough power to convey the viscous materials, so as to prevent all connections, pump bodies and pipe fittings from being blocked by the material; furthermore, the pressure can be kept to be constant by the pressurizer when the material is ejected, the discharged materials of the spray device are uniform, the materials sprayed on all surfaces of work-pieces are uniform and attractive and are qualified in quality.
Owner:FOSHAN KINGPENG ROBOT TECH CO LTD

Breeding method for Hypsizygus marmoreus strains

InactiveCN109182450AExcellent amino acid contentGood fertilizer for cultivating edible fungiMicrobiological testing/measurementPotassiumBiology
The invention discloses a breeding method for Hypsizygus marmoreus strains. The specific breeding method comprises the following steps: 1) adding residue of sophora japonica, mixture of Chinese herbalmedicine, sophora japonica powder, potassium hydrogen phosphate, pig bile salt, glucose, lactose and agar into a culture medium; 2), adding clean water into the culture medium of the step 1, shakingevenly, and pouring into a petri dish; 3), drawing a black line on the bottom cover of each petri dish to divide the area into two equal part, and inoculating mother species and antagonistic bacteriaof Hypsizygus marmoreus at two opposite points 3cm away from the center of the plate respectively; 4), controlling the temperature of the inoculated Petri dish to 22 DEG C, and culturing the inoculated Petri dish in a light-shielding and airtight manner; and 5), after culturing, calculate that bacteriostasis rate of the H. maritima strains to antagonistic bacteria in each culture dish, and selecting the H. maritima strains in the culture dish with high bacteriostasis rate as the selected target strain. The breeding method for Hypsizygus marmoreus strains is simple and convenient, and is easy to popularize. And basically does not consume energy, no pollution to the environment, in line with the national energy-saving and environmental protection industrial policy.
Owner:江苏品品鲜生物科技股份有限公司

Tannin paste and preparation method

The invention discloses tannin paste and a preparation method thereof. The paste is composed of the following components in parts by weight: 100 parts of tannin, 150 parts of glycerol, 73.8 parts of lanolin, 664.2 parts of vaseline, 2 parts of anhydrous sodium sulfite and 10 parts of purified water. When the tannin paste is prepared, the vaseline and the lanolin are heated and mixed to form a component A; the purified water, the glycerol and the anhydrous sodium sulfite are heated and mixed to form a component B; and after the component B and the tannin are mixed to obtain a mixture, the mixture is added into the component A to obtain the tannin paste. The anhydrous lanolin in the formula can adsorb free moisture in preparation, so that the stability of products is increased; the tannin paste does not contain anticorrosives and beewax which are replaced by the vaseline and the lanolin which are easily smeared, so that the softness of the preparation is improved, and the tannin paste is easily smeared; in the preparation process of the tannin paste, materials are easily blocked, according to the preparation method provided by the invention, after a little water is added, the solubility is improved; and through an extracorporeal drug release test, the drug release performance is better than that of a preparation prepared by a national standard prescription.
Owner:CHONGQING ZHULIU BIOENG

Method for preparing high-purity glucomannan

The invention discloses a method for preparing high-purity glucomannan. The method comprises main steps as follows: a solution with the concentration of 0.5%-10.0% is prepared from homogeneous polysaccharide raw materials which have the molecular weight in a range of 10-1,000 kD and are selected from naturally sourced konjac polysaccharides, Bletilla striata polysaccharides or hydrolysates of the konjac polysaccharides or Bletilla striata polysaccharides; a filter aid is added to the solution for treatment, an obtained mixture is filtered and is sequentially filtered with a 100-1,000-nm micro-filtration membrane and concentrated with an ultrafiltration membrane with the molecular weight cut off of 2-100 kD, an obtained product is concentrated and dried, and the high-purity glucomannan with the purity of 90% or higher or a liquid preparation of the high-purity glucomannan is obtained. The method has the advantages that the preparation process is concise and controllable, and enlarged production is realized easily; the obtained glucomannan has high purity and low content of related substances and can meet the quality standard for medicinal bulk pharmaceutical chemicals, thereby being applicable to preparation of drugs and related medical products such as pharmaceutical excipients, medical equipment and the like.
Owner:SUZHOU QIUSHI HERBAL HEALTH TECH CO LTD

Furosemide injection and preparation process thereof

The invention provides a furosemide injection and a preparation process thereof. Each 10000ml of furosemide injection contains the following raw materials: 100g of furosemide, 60-90g of sodium chloride, 120-180ml of 10% (mass concentration) of sodium hydroxide and injection water for supplementing to 10000ml. The preparation process comprises the following steps of: adding the injection water which accounts for 70 percent of the total amount of preparation into a burdening tank; adding the furosemide, the sodium chloride and the 10% (mass concentration) of sodium hydroxide to the burdening tank; stirring till the furosemide is dissolved; cooling the solution to be below 30 DEG C; adjusting the pH value of the solution to 9.1-9.4; adding the injection water to reach total preparation amount and uniformly stirring; filtering the solution; and introducing N2 to the filtered solution to realize encapsulation. The furosemide injection and the preparation process thereof have the advantages that the problem that related substances in an original formula of the furosemide injection are unqualified is solved, and the furosemide injection can meet the quality standard of the furosemide injection in China Pharmacopoeia (2010 Edition 2) and provision of notification related to release of basic technical requirements of chemical injection and multi-component biochemical medicine injection.
Owner:上海禾丰制药有限公司

Automatic continuous film wrapping equipment

The invention discloses automatic continuous film wrapping equipment. The automatic continuous film wrapping equipment comprises a frame, a workpiece rotation driving device arranged on the frame, a support carrying device arranged on the back side of the workpiece rotation driving device and provided with a placing station and a working station, a film strip positioning device arranged on the front side of the support carrying device and provided with a first positioning area and a second positioning area, a pushing device arranged on the back side of the support carrying device, and a pressing roller device arranged between the support carrying device and the workpiece rotation driving device, and a cutting assembly device arranged between the pressing roller device and the film strip positioning device. The automatic continuous film wrapping equipment not only can realize automatic material change and automatic assembly of roll film strips, but also can greatly improve the assemblyquality and the assembly stability, can prevent the local release or breakage phenomenon in the film strip assembly place, can improve the production efficiency to the greatest extent, can greatly reduce the production cost of enterprises, facilitates large-scale standard production of the enterprises, and improves the competitiveness.
Owner:ZHONGSHAN DONGYUN PLATEMAKING
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