63results about How to "Consistent product quality" patented technology

The invention provides silica gel for electronic components. The silica gel is composed of an A component and a B component according to a mass ratio of 1:1, wherein the A component comprises vinyl branched silicon oil and a catalyst; the preparation method of the B component is as follows: mixing vinyl terminated silicone oil with hydrogen terminated silicon oil, and then, crosslinking under the action of a platinum catalyst to obtain an intermediate; mixing the intermediate and hydrogen branched silicon oil with an inhibitor to obtain the B component; the mass of the catalyst accounts for 2-4 per mill of total mass of the A component and the B component; the mass of the inhibitor accounts for 2-3per mill of total mass of the A component and the B component; the ratio of mole number of Si-H bonds in the hydrogen terminated silicon oil and the hydrogen branched silicon oil to the mole number of [CH2=CH-Si] bonds in the vinyl terminated silicone oil and the side vinyl silicone oil is smaller than 1. The silica gel provided by the invention simultaneously has good adhesion, toughness and strength.

The invention relates to a method for preparing sterile tacrolimus nano suspension eye drops. The method for preparing the sterile tacrolimus nano suspension eye drops comprises the following main steps: preparing tacrolimus nano suspension by adopting a phase transfer and high pressure homogenization method; removing an organic solvent in the tacrolimus nano suspension by adopting a drying/curing technology, and stabilizing tacrolimus nano particles; sterilizing to obtain sterile tacrolimus nano particles; and finally carrying out sterile redissolution and prepackaging operation, so that the finished product is obtained. By adopting the method for preparing the sterile tacrolimus nano suspension eye drops, homogeneously dispersed sterile nano eye drops which do not contain the organic solvent can be obtained, sterile operation steps are obvious reduced, the tacrolimus nano suspension eye drops prepared by adopting the method provided by the invention is sterile and qualified, all the inspection indexes are respectively consistent with those of the original product, and especially particle size and particle size distribution are highly consistent with those of the original product.

The invention relates to a method for preparing a compound, namely, olopatadine hydrochloride. The method specifically comprises the following steps: by taking 2-chloromethyl methyl benzoate and methyl 4-hydroxyphenylacetate as initial raw materials, performing etherification, hydrolysis and cyclization, further performing wittig reaction, and salifying, thereby synthesizing olopatadine hydrochloride. The process is gentle in process reaction condition, acetic anhydride is adopted to replace polyphosphoric acid, a hydrochloric acid organic solvent is adopted to effectively split Z/E type olopatadine so as to obtain olopatadine hydrochloride, conversion of Z/E configuration is effectively achieved after an E configuration byproduct is treated by using concentrated hydrochloric acid, the yield of olopatadine hydrochloride is increased, the product purity is good, and the feasibility of industrialization production is greatly improved.

The invention discloses an installation tool for a filtering net of an oil pump. The installation tool comprises a bottom plate (3), a positioning plate (4), a pressing device, a filtering net press mounting device and a pressure release valve installation device. The positioning plate (4) is vertically connected to the bottom plate (3) which is horizontally arranged. The filtering net press mounting device is connected to the bottom plate (3) through a support assembly, and a pressing head plate (16) in the filtering net press mounting device is located over an oil inlet of a pump body. The pressure release valve installation device is connected to the bottom plate (3), and the movement direction of the movable end of the pressure release valve installation device is the horizontal direction consistent with the direction of the axis of an installation opening of the pump body. After the above structure is adopted, the pump body of the oil pump does not need to be secondarily clamped, and therefore the assembling efficiency is greatly improved; and in addition, the benchmark does not need to be found again during assembling, and therefore the assembling quality of a product is better ensured.

The invention relates to a printed circuit board manufacturing method, which is characterized by comprising the following steps of board grinding, line screen printing, etching, board grinding beforesolder mask, solder mask screen printing, character screen printing, CCD drilling, punching, electrical measurement, OSP and finished product inspection. The manufacturing process of the printed circuit board has a reasonable processing procedure, short production cycle, low production cost, high yield, stable product quality, consistent quality and high circuit reliability, and good development space for integration, miniaturization and product automation of electronic equipment is provided.

The present invention relates to a new synthesis method for a nafamostat mesylate intermediate 6-amidino-2-naphthol methanesulfonate. According to the new method, 6-hydroxy-2-naphthaldehyde is adopted as a raw material, dimethyl sulfoxide is adopted as a reaction solvent, the dimethyl sulfoxide and hydroxylamine hydrochloride are subjected to an addition elimination reaction to obtain 6-cyano-2-naphthol, the 6-cyano-2-naphthol is subjected to a pinner reaction in a HCl/methanol solution to obtain 6-hydroxy-2-naphthalene imino methyl ester hydrochloride, ammonia gas is introduced to carry out an aminolysis reaction to obtain 6-amidino-2-naphthol, and the 6-amidino-2-naphthol sequentially reacts with sodium bicarbonate and methanesulfonic acid to convert into the 6-amidino-2-naphthol methanesulfonate. According to the present invention, in the new synthesis method, the 6-cyano-2-naphthol preparation in the first step adopts the completely-new method, the use of the highly toxic copper cyanide in the traditional method is avoided, the operations are simple, and the conditions are mild; and the second step adopts the improved pinner method, wherein the reaction of acetyl chloride and methanol is adopted to produce HCl to replace direct introduction of HCl gas into the reaction system, such that the improved method has strong operability and industrialization is easily achieved.

The invention relates to the technical field of food processing, and particularly relates to a quick-frozen braised noodle and a preparation method thereof. According to the quick-frozen braised noodle provided by the invention, wheat-core wheat flour, acetate modified starch and hydroxypropyl distarch phosphate are combined and used as a flour matrix, four components of isolated soy protein, sodium tripolyphosphate, sodium pyrophosphate and sodium polypyrophosphate are contained in a water retention agent; all components in the flour matrix synergistically acts; all the components in the water retention agent synergistically interacts; afterwards, by combining a three-time-awaking noodle preparation process, the water-absorption and water-retention performance of the quick-frozen braisednoodle is promoted; the color and luster stability is promoted; the quick-frozen braised noodle is prevented from generating brown stains in a quick-frozen reheating procedure; the eating quality of the quick-frozen braised noodle is improved. The braised noodle prepared by the preparation method is subpackaged and quick-frozen, is directly reheated by a microwave before being eaten, and is convenient for a consumer to eat and suitable for a busy office worker and the industrialized production of the braised noodle is promoted.

The present invention relates to a condenser microphone which provides a normal operation and an improvement of yield. In order to achieve the above object of the invention, there is provided a electret microphone comprising: a casing; an internally housed components housed by the casing, the components including a vibrating plate, a spacer, a back plate, a first base ring and a second base ring; a printed circuit board for receiving an electrical signal from at least one of the vibrating plate and the back plate; a washer spring for providing an elasticity between the components, and among the components, the casing and the printed circuit board. In accordance with the condenser microphone including the washer spring, the microphone operates normally even an error occurs during a manufacturing process, a uniform product quality is maintained, and reduces a defect rate to remarkably improve a manufacturing yield. In addition, in accordance with the condenser microphone including the washer spring, the washer spring may be easily applied, and an effective and reasonable selection of the microphone and an application of the manufacturing method thereof are possible by showing an effective characteristic and a resulting effect and function.

The invention discloses a box-type tempering furnace, a tempering furnace conveying system and a tempering furnace control method, and belongs to the field of heat treatment. The tempering furnace conveying system comprises two conveying rails, a conveying frame and a feeding system, wherein the two conveying rails are arranged on the front side of the tempering furnace in parallel, and the conveying frame comprises a frame body; two sets of conveying wheels are arranged at the bottom of the frame body, and the conveying wheels and the conveying rails are matched; a back-and-forth speed reduction motor and a feeding speed reduction motor are arranged on the lower portion of the frame body, and the back-and-forth speed reduction motor drives the conveying wheels to move; the feeding speed reduction motor drives a large transmission chain wheel on the upper portion of the frame body through a small transmission chain wheel, and the large transmission chain wheel drives the feeding system to work; and the back-and-forth speed reduction motor and the feeding speed reduction motor are connected with an external control system. The tempering furnace has the beneficial effects of being high in allocation use rate, consistent in product quality and high in working efficiency and saving energy sources.

The invention belongs to the technical field of biomass fuel. A biomass fuel briquetting forming machine comprises a rack, two vertical plates arranged at the two ends of the rack, a feeding hopper arranged on the tops of the two vertical plates in a supporting manner, a forming assembly arranged between the two vertical plates, and a hydraulic control system arranged on the rack. The feeding hopper is provided with a material scattering assembly. The material scattering assembly comprises a rotating shaft connected to the feeding hopper in a pivotal manner, a drive motor driving the rotating shaft, and a stirring rod arranged on the rotating shaft. The forming assembly comprises a plurality of supporting shafts arranged between the two vertical plates in parallel, a plurality of sets of forming die units arranged on the supporting shafts in a sliding and sleeving manner, an ejecting plate arranged on the inner side of the vertical plate on the left side, and a main pushing hydraulic cylinder driving the ejecting plate. The biomass fuel briquetting forming machine is reasonable and compact in structural design, and the phenomenon of material overhead bridging can be avoided; and meanwhile, automatic batched production can be achieved, the pressure applying effect is good, the quality of formed products is consistent, and very high market competitiveness is achieved.

The invention provides a camera module appearance detection device which comprises a feeding mechanism, a first material taking mechanism, a rotating mechanism, a second material taking mechanism, a linear mechanism, a third material taking mechanism, a complete product receiving mechanism and a defective product receiving mechanism which are fixedly arranged, and a first bottom surface detection module is arranged between the rotating mechanism and the feeding mechanism; the first material taking mechanism takes the camera module from the feeding mechanism and conveys the camera module to the rotating mechanism, the bottom face of the camera module is detected through the first bottom face detection module in the conveying process, and a top face detection module is arranged at the top of the rotating mechanism and used for detecting the top face of the camera module. According to the camera module appearance detection device, feeding and discharging are conducted through machinery, the camera module is moved to the detection area of the appearance detection module for face-by-face detection, so that appearance detection of the camera module forms a complete procedure, manual participation is not needed, time and labor are saved, manual subjective judgment is avoided, and the production quality of the camera module is kept consistent.

The invention relates to a reinforcement cord for elastomer products, in particular for vehicle tires, containing at least one yarn made of filaments. The invention additionally relates to an elastomer product which contains at least one reinforcement cord. In order to protect the environment and preserve resources while maintaining a good processing behavior, at least one yarn of the reinforcement cord contains filaments made of polybutylene furandicarboxylate (PBF), wherein the PBF is completely or at least partly made of biomass and/or renewable raw materials.

The invention belongs to the field of fertilizer production device, and more specifically relates to a liquid-state selenium-enriched nutritional chelated fertilizer reaction vessel. The liquid-stateselenium-enriched nutritional chelated fertilizer reaction vessel comprises a tank body, a stirring device arranged in the tank body, and a heating device and a housing arranged outside the tank body;the upper part of the tank body is provided with a feed inlet and a water inlet; the lower part of the tank body is provided with a feed outlet and a sewage draining exit; the liquid-state selenium-enriched nutritional chelated fertilizer reaction vessel also comprises a temperature sensor and a controller; the temperature sensor is arranged on the upper part of the internal side of the tank body; the temperature sensor is communicated with a controller circuit arranged outside the housing; a display screen is arranged on the controller; the heating device is communicated with the controllercircuit; the stirring device comprises a multistage speed regulation motor, a stirring shaft, stirring blades, and a stirring controller. In applications of the liquid-state selenium-enriched nutritional chelated fertilizer reaction vessel, it is possible to realize automatic adjusting of opening and closing of the heating device based on the real time temperature in the tank body, realizing preferable control on the temperature in the tank body, ensuring chelating environment stability; the stirring controller is used for automatic adjusting the stirring speed and stirring time of the stirring device, so that product full chelating is realized, layering is avoided, and the stability and homogeneity of the quality of obtained liquid-state selenium-enriched nutritional chelated fertilizer are ensured.

The invention discloses a preparation method of a combination of medicines for nourishing the liver, improving eyesight and nourishing yin and tonifying the kidney, which relates to a preparation method of the medicine combination. Its formula consists of: 800g medlar, 20g astragalus, 100g Codonopsis radix, 50g Ophiopogon japonicus, 90g donkey-hide gelatin; its preparation method is: 1) remove impurities from the above medicinal materials, and process them into decoction pieces; Rinse it with purified water; 3) Add purified water in stages according to the weight of the above medicinal materials weighed, heat and extract 3 times, filter, and combine to obtain the extract; 4) Melt the donkey-hide gelatin; 5) Continue to concentrate the filtrate to Clear paste with a relative density of 1.20-1.24; 6) Add honey and sodium benzoate, boil to dissolve. It adopts vacuum filtration, which can prevent the loss of active ingredients when removing impurities; it is easy to operate and can effectively control product quality.

The invention discloses an automatic exhaust welding tool for a stainless steel heat insulation cover. The automatic exhaust welding tool is used for welding the stainless steel heat insulation cover after the surface of a casting is wrapped with heat insulation cotton and comprises a rack, supports, a displacement motor, an overturning frame and a welding gun, the overturning frame is of a U-shaped structure, and the two sides of the overturning frame are fixed on the rack through the supports respectively; and the two ends of the overturning frame are correspondingly arranged on the supports through the transversely-arranged displacement motor and a rotating shaft respectively, a clamping mechanism is arranged on the overturning frame, and the transverse welding gun is arranged on one side of the overturning frame through a displacement mechanism. The automatic exhaust welding tool is simple, reasonable and reliable in structure, adopts PLC automatic control, reduces the labor intensity, improves the working efficiency, and ensures the consistency of the product quality.