207results about How to "Solve the sticking problem" patented technology

The invention relates to a method for preparing a levitation-type micro-silicon electrostatic gyro/ accelerometer sensitive structure, which belongs to the technical field of silicon structure processing. The method comprises the steps: glass etching; glass gold splashing: a metal layer raising 400-600 tenthmeters higher than a glass surface; perforating the glass; a first and a second RIE etching for the silicon slice; film beam process: high-temperature dry oxidation and surface corrosion; a first electrostatic bonding for glass and silicon; thinning and polishing to the silicon slice; ICP etching for the silicon slice; a third RIE etching for the silicon slice; a fourth RIE etching for the silicon slice; a second electrostatic bonding for glass and silicon; ICP removal for film beam to prepare the levitation-type micro-silicon electrostatic gyro/ accelerometer sensitive structure. The method adopts the proposal of sandblasting perforating for perforating the glass, introduces the silicon dioxide film beam as a sacrificial layer and adopts the ICP film beam removal process; the method can effectively solve the problem of adherence of a sandwich microstructure in the second electrostatic bonding and does not need post treatment so that the method has higher efficiency and better compatibility with the MEMS process.

The invention relates to an oral medicinal composition containing I crystal-form clopidogrel hydrogen sulfate, polyethylene glycol and micro-powder silica gel, proper disintegrating agent and filling agent. The auxiliary materials of the composition are low in price and can be obtained easily; the preparation process is simple; the requirement for equipment and environment is not high; and the prepared tablet is stable in quality and good in reproducibility, and is applied to industrialized production. The prepared tablet has good stability in long-term storage and can be maintained stable after being placed for 6 months at the temperature of 40 DEG C, without appearance change and obvious degradation or crystal-form inversion phenomenon; the dissolution rate of the tablet is not reduced after the tablet is placed for a long time; and the dissolution rate of the tablet in 10 minutes can still reach more than 95 percent after the tablet is placed for 6 months at the temperature of 40 DEG C.

The invention relates to a triad producing method of clothing face fabric with rabbit hair, cashmere and silk, which is characterized in that: the raw material comprises 14% of the silk, 39% of the rabbit hair, 44% of the wool and 3% of the cashmere, the clothing face fabric with rabbit hair, cashmere and silk is made by the processes of dyeing, garneting, spun yarn, warping, weaving and after-finishing. The triad producing method of clothing face fabric with rabbit hair, cashmere and silk has the advantages of gathering the elasticity and heat retention of the wool, and the excellent properties of the rabbit hair and the silk, soft and satiny hand feeling, natural and elegant luster, excellent heat retention, and suitable for the demand of higher consumption level stratum.

The invention relates to a manufacturing method of a rubber and chemical fiber synthetic waterproof sheet and a product thereof, and the rubber and chemical fiber synthetic waterproof sheet is formed by compounding three layers of material, wherein the middle layer is a chemical fiber cloth or felt composite layer, and the chemical fiber cloth or felt composite layer is a waterproof layer enabling polymer synthetic rubber composite material and chemical fiber cloth or felt to infiltrate and adhere mutually; when in manufacturing, the chemical fiber cloth or felt of the middle layer is firstlyplaced in a dip coating groove for enabling the chemical fiber cloth or felt to soak polymer synthetic rubber waterproof rubber material, and the middle sheet layer is further manufactured; and two layers of the chemical fiber cloth or felt are stuck on two surfaces of the middle sheet layer respectively, thereby forming the three-layer compound synthetic waterproof sheet. The polymer synthetic rubber waterproof rubber material takes rubber as main material, and a high polymer and other auxiliary materials are added for manufacturing the waterproof rubber material; the auxiliary materials comprise an accelerant, filling material, a softener, a cross-linking agent or an anti-aging agent; and the middle sheet layer can be manufactured by one of three forms respectively, namely the cold working method, the hot working method and the rolling method.

The invention discloses a biomass fuel boiler which is equipped with an outer shell and an inner combustion chamber, wherein, a water storage room is arranged between a barrel and the combustion chamber, and a burner is arranged at the lower part of the combustion chamber. The biomass fuel boiler is characterized in that the burner is of a double-layer sleeve structure, wherein, the inner layer thereof is a cylinder with an open on the upper surface, and an ignition device is arranged in the middle of the bottom; an outer layer is a closed body which is communicated with a fan and is used for enclosing the inner-layer cylinder besides an open mouth; and air intakes are arranged at the middle part and the upper part of the bottom and the side of the inner-layer cylinder; and a particle fuel tank is arranged at the side of the shell, and particle fuel is connected to the burner through a twisting cage. In the invention, three types of combustion air such as upper straight air, middle spiral air and bottom raising air are formed in the burner by changing the mode of air supply, wherein, the bottom raising air enables biomass particles to suspend in the burner; the middle spiral air enables biomass fuel more dispersed and more fully burned; and the upper straight air performs secondary oxygen supply to achieve more thorough combustion and improve thermal efficiency.

The invention discloses effervescent tablets with inactivated lactobacillus cells as an effective component, and a preparation method thereof. The inactivated lactobacillus effervescent tablets are prepared from the raw materials of, by weight, 5-15% of inactivated lactobacillus powder, 20-30% of oligosaccharide, 23-33% of an acid source, 25-35% of an alkali source, 2-5% of a disintegrant, and 2-5% of a lubricant. According to the invention, the lactobacillus cells are inactivated through a heat inactivation method. The effervescent tablets comprise lactobacillus cells, and have the functions of digestion promoting, intestinal micro-ecological balance maintaining, and human immunity improving. Also, the tablets comprise oligosaccharide bifidus factors, and can promote probiotic growth in bodies, such that a dual health-care effect is achieved. The effervescent tablets are convenient to carry and to eat. When the effervescent tablet is dissolved in proper amount of drinking water, an instant beverage can be obtained. The tablets are solid health-care beverages for various populations. The effervescent tablet preparation method provided by the invention is simple and feasible, and has important actual application and popularization values.

The invention discloses clopidogrel bisulfate crystal particles with the median particle diameter of at least 120 microns. The invention also discloses a method for preparing the crystal particles, a pharmaceutical composition containing the crystal particles and a preparation method of the pharmaceutical composition.

The invention discloses a tablet, which comprises a main drug, a lubricant, a flow aid, a filler, an adhesive and a disintegrating agent. The invention also discloses a preparation method of the tablet, which comprises the following steps: using a proper amount of lubricant and main drug, crushing and mixing, increasing the fluidity of the main drug; mixing the flow aid and the filler of the tablet to increase the fluidity of the filler; selecting the proper adhesive and mixing with the flow aid and the disintegrating agent, and uniformly mixing with a generated mixture and then sieving; and using a conventional rotation tablet press for tabletting under proper pressure and speed condition. The tablet and the preparation method can effectively solve the sticking problem during a straight press process of the tablet, and the hardness, the disintegration time, the friability and the dissolution rate of the obtained tablet accord with a national pharmacopeia standard.

The invention discloses a pure titanium seamless pipe cross rolling piercing method which includes the steps: hot spraying a zirconium oxide coating with the thickness of 0.2-0.4mm on a working surface of a guide plate of a cross rolling piercing machine by the aid of plasma; grinding the zirconium oxide coating with surface roughness of 0.9-1.5 micrometers; smearing boron nitride lubricants on a working surface of a front guide plate of the cross rolling piercing machine; setting the ellipticity of a pure titanium seamless pipe cross rolling piercing hole pattern to be 1.09-1.2. By the method, piercing and sizing can be performed on a hot rolling mill comprising the cross rolling piercing machine, so that a high-precision pure titanium seamless pipe is directly produced on a production process line, and the problems of easiness in adhesion and low yield of guide plates of a cross rolling piercing machine in the prior art are solved.

The invention discloses an orlistat oral preparation and a preparation method thereof. The orlistat oral preparation is an orlistat tablet. The orlistat tablet comprises an orlistat acrylic resin solid dispersion, a disintegrating agent and pharmaceutically acceptable auxiliary materials. The orlistat acrylic resin solid dispersion is prepared by rapid expansion of supercritical solution and has D90 less than 10 microns. The raw materials of the orlistat oral preparation are micronized by a supercritical technology and an inert material layer is coated on the orlistat surface so that the problems of a low dissolution rate of the preparation obtained by the prior art, and sticking in tabletting are solved.

The invention relates to an internally-reinforced composite butyl self-adhesive ethylene-propylene rubber waterproof coiled material and a production method thereof. The internally-reinforced composite butyl self-adhesive ethylene-propylene rubber waterproof coiled material is formed by sequentially and mutually overlapping and compounding a basic layer, a self-adhesive layer and a sticking prevention layer; the basic layer is prepared by compounding a surface layer and a foundation layer on two sides of a reinforcement layer or compounding the surface layer above the reinforcement layer; thesurface layer and the foundation layer are both ethylene-propylene rubber layers; the reinforcement layer is an expanded metal net or fiber grid cloth; the self-adhesive layer is a butyl self-adhesiverubber layer or a butyl hot melt adhesive; the sticking prevention layer is a PE isolating membrane. According to the internally-reinforced composite butyl self-adhesive ethylene-propylene rubber waterproof coiled material disclosed by the invention, node parts of thin parts are permanently sealed to a maximum extent, so that a waterproofing effect of an overall waterproof layer is greatly improved and the durability life of the overall waterproof layer is greatly prolonged, and the problem that the node parts of the thin parts of the waterproof layer cannot be handled well by adopting an existing ethylene-propylene-diene monomer rubber waterproof coiled material is solved.

The invention relates to a punch mould for processing magnetic materials, which comprises a parent body, a non-conducting magnet layer which is arranged on the parent body. The non-conducting layer uses alloy material; the surface of the non-conducting layer is provided with a DLC coat. The processing method of the mould comprises the steps: 1) the materials of the parent body carry out the quenching and tempering treatment; 2) according to the drawing paper of the mould and the design of the magnetic line of force, the materials of the parent body are made into the parent body with the needed shape and size; 3) the welding face of the parent body to be treated is removed with oil and oxidizing layers; 4) by adopting a spray welding technique, the non-conducting layer is processed; 5) according to the size of the mould, the machining is carried out; according to the drawing paper and the size of the mould cavity, the assembly manufacturing are carried out; 6) polishing treatment is carried out on the surface of the punch; 7) the non-conducting magnet layer of the punch adopts the DLC spray finishing treatment. The mould solves the problems that in the existing technology, the surface of the punch often has mold sticking; the punch is easily deformed; the magnet line of force is not clear and the service life of the punch is short.

The invention discloses a tablet containing escitalopram oxalate and a preparation method thereof. According to the invention, the tablet containing escitalopram oxalate uses hydroxy propyl cellulose as an adhesive and uses escitalopram oxalate with median particle size less than or equal to 20mum, and the prepared tablet containing escitalopram oxalate has the advantages of beautiful appearance and stable quality. The invention also provides the preparation method of oral tablet, and has the advantages of simple process and adaptability of commercialized production.

The invention discloses a clopidogrel tablet and a preparation method thereof. The clopidogrel tablet is a coated tablet which consists of a clopidogrel table body and a coating material, wherein the clopidogrel table body comprises the following ingredients in parts by weight of clopidogrel free alkali: 75 parts of pharmaceutically acceptable salt of clopidogrel, 6-9 parts of sodium stearyl fumarate, 3-6 parts of talcum powder, 90-135 parts of diluent, 2-6 parts of bonding agent and 7-17 parts of disintegrating agent, wherein the diluent is made of combined mannitol and microcrystalline cellulose in a weight ratio of (2:1)-(1:1); the weight of the coating material accounts for 2.7-3.3% of the weight of the clopidogrel tablet. By adopting the clopidogrel tablet, not only is the problem of sticking in the tabletting process solved, but also the mixed lubricant and clopidogrel have good compatibility, the phenomena that active ingredients are degraded or the configuration is inversed are avoided, and the clopidogrel tablet is high in stability, good in quality, and high in similarity in dissolving behavior to that of an original triturate plavix.

The invention discloses an integral optical glass forming mould, belongs to the field of an optical glass melting and forming technology, and mainly solves the problems that the glass metal sticky mold and moulded stripes can be easily caused when an optical glass strip is formed. The integral optical glass forming mould is characterized by mainly comprising a forming part and a cooling part, wherein the forming part is an integral forming groove, one end of the forming groove is opened, and an end working surface at another end of the forming groove is a concave working cambered surface; the bottom surface of the forming groove below the end working surface is a lower convex cooling cambered surface, the cooling part is a cooling cavity closely adhered to the cooling cambered surface, and a cooling hole is formed in the cooling cavity; a temperature control thermocouple is arranged above the forming part. The integral optical glass forming mould provided by the invention has the characteristics of the optical glass strip of stable production, high forming temperature and low forming viscosity, thereby being mainly used for the forming of lanthanide series optical glass.

The invention discloses a self-service food buying machine. The self-service food buying machine comprises a machine frame, wherein a rice guiding mechanism, a roller drive mechanism, a rice pushing mechanism and a control system are sequentially arranged in the machine frame from top to bottom, and the rice pushing mechanism is controlled by the control system. The rice guiding mechanism comprises a rice storage box, a roller and a discharging pipe, wherein the rice storage box is arranged on the machine frame, the inlet of the roller is connected with the outlet of the rice storage box, and the outlet of the roller is connected with the inlet of the discharging pipe. The roller drive mechanism comprises an alternating-current motor, a belt wheel, a gear and a straight gear, wherein the roller is driven by the alternating-current motor, the belt wheel, the gear and the straight gear, the two ends of the belt wheel are arranged on a rotating shaft of the alternating-current motor and the gear respectively in a sleeved mode, the gear is meshed with the straight gear, and the straight gear is arranged on the roller. The self-service food buying machine is fully automatic; customers just need to select buttons corresponding to required food on a control panel and swipe cards, and therefore the self-service food buying machine is convenient and easy to operate.

The invention belongs to the field of pharmaceutical preparations, and particularly relates to a preparation method of an immediate release oral preparation containing sitagliptin or sitagliptin pharmaceutical salt. The immediate release oral preparation is characterized in that in a preparation process of the immediate release oral preparation, when sitagliptin or sitagliptin pharmaceutical salt is in a hydrate crystal form, a wetting agent is water, and when sitagliptin or sitagliptin pharmaceutical salt is in an anhydrous crystal form, the wetting agent is ethanol. According to the preparation method, various technical features in the preparation method supplement each other, influence each other and synergistically act, and the crystal form of an active ingredient is not transformed before and after the preparation is prepared, so that the treatment effect is ensured; in addition, the compressibility of a material is improved significantly; the disintegration time is shortened obviously; and the problem of sticking is solved effectively.

The invention discloses probiotic pressed candy and a production method thereof; the probiotic pressed candy is made from, by weight, 40-70 parts of starch, 10-30 parts of xylooligosaccharide, 20-40 parts of erythritol, 10-20 parts of glutamine, 5-15 parts of skim milk powder, 3-5 parts of probiotic powder, and 0.5-1.5 parts of magnesium stearate. The probiotic pressed candy is high in probiotic count and activity, and has the physiological functions of promoting intestinal digestive system functionality, maintaining gastric and intestinal mucosal health, enhancing human immunity and the like.

The invention relates to a preparation method of a clopidogrel bisulfate solid preparation. The method discloses a two-step granulation process of melt-granulating and then dry-pressing granulating for clopidogrel bisulfate, and the obtained granules have good compressibility and fluidity, and are not easy to stick to a die, so that the problems of tablet sticking, easy revealing or splitting which are common in the preparation of oral tablets of clopidogrel bisulfate is solved. The preparation method can ensure the rapid dissolution of the drug in the preparation, and the long-term retentionof the sample does not increase the impurities. The preparation process of the present invention is highly practical and can be used for large-scale preparation of clopidogrel sulfate bulk drugs withdifferent physical properties.