33results about How to "Improve stuck problem" patented technology

The invention relates to a bisulfate clopidogrel solid preparation, particles and a preparation method thereof. Particles contained by the solid preparation are solid mixture formed from bisulfate clopidogrel, cellulose excipients and molten adhesive with the melting point between 50 and 86 DEG, and an additionally added excipient of the particles contains weak alkaline lubricants and crosslinked polyvinylpyrrolidone. The solid preparation and the particles thereof are prepared by a melting-granulating method. The solid preparation has the advantages of solving sticking-picking problems existing in the preparation process, effectively reducing the degradation of clopidogrel during storage, reducing the incidence of transforming clopidogrel dextroisomer into clopidogrel levisomer and increasing the stability and security of the solid preparation.

The invention is applied to the display instrument field, and provides a speed control method of a stepping motor, a device and a system. The method comprises the steps as follows: the object distance of the stepping motor is calculated according to the current location and the target location of the stepping motor; whether the object distance is greater than the configured reference distance is judged; when the object distance is greater than or equals to the reference distance, the stepping motor is controlled to do variable accelerated motion; when the object distance is less than the reference distance, the stepping motor is controlled to do variable decreasing motion. The stepping motor is controlled to do variable accelerated motion or variable decreasing motion through judging the relation between the object distance and the reference distance, thereby leading the display of an instrument pointer to be smoother, and effectively improving the phenomenon such as pointer clamping stagnation or saltation, etc. caused by bad accordance between smooth effect and sensitivity of the pointer.

The invention relates to a variable displacement swash plate compressor. A swash plate driving mechanisms with a flexible driving balance design is provided, has proper flexibility during work, overcomes unbalanced force and moment acting on the swash plate, improves vibration, noise, kinematic pair blockage and excessive wear caused by the unbalanced force and moment, and reduces machining and assembly precision of related workpieces; a piston with a spiral linear oil groove is provided and stores oil, and through the reciprocation of the piston and the acceleration change of the piston, lubricating oil flows reasonably between the kinematic pair and is uniformly distributed on the cylindrical surface of the piston and the peripheral surface of the cylinder to improve the sealing and lubricating properties between the piston and the peripheral surface of the cylinder, improve the performance of the compressor and prolong the service life of the piston; and a cylinder cover capable of being formed at one time through die casting and having simple process is provided, and suction and discharge channels adopt a single-section or multi-section expansion chamber-type cavity consisting of alternate contraction sections and expansion sections to improve the vibration and air flow noise caused by suction and discharge pulsation.

The invention discloses a formula milk powder for pregnant and lying-in women and a preparation method thereof. The formula milk powder comprises: 30%-55% of skimmed milk powder, 30%-55% of whole milkpowder, 1%-8% of inulin, 1%-8% of galactooligosaccharide, 1%-6% of hydrolyzed whey protein powder, 0.2%-1.2% of calcium carbonate, 0.1%-1.1% of docosahexaenoic acid grease, 0.1%-1% of lactose, 0.1%-0.8% of minerals, 0.1%-0.7% of vitamins and 0.02% of bifidobacterium lactis HN019 freeze-dried powder. According to the formula milk powder, the inulin and the galactooligosaccharide serve as strengthening factors of the Bifidobacterium lactis HN019, the concentration of the Bifidobacterium lactis in excrement of pregnant women is increased, constipation is prevented or relieved, intestinal peristalsis is stimulated, excrement wettability is improved, intestinal flora balance and intestinal health are maintained, and absorption of vitamin B1, zinc and other microelements by pregnant and lying-in women is improved. Experimental results show that after the milk powder is eaten, the concentration of Bifidobacteria in the excrement of the pregnant women reaches 10<10> cfu/g or above, and the concentration of the Bifidobacteria in intestinal tracts is obviously increased. The formula and the process of the milk powder can also effectively improve the problem of wall adhesion in a spray drying stage.

The invention belongs to the field of nano materials and analysis and detection, and relates to a silver nano-wire and an SERS (Surface-Enhanced Raman Scattering) detection method using the silver nano-wire as a substrate. A preparation method of the silver nano-wire adopts a polyol method and takes silver nitrate as a raw material to prepare the silver nano-wire, the polyol used by a reaction is selected from glycerol, and the reaction temperature is improved; compared with the prior art, the reaction time is shortened, an inert protective gas atmosphere is not needed, and an after-treatment process is optimized; and the length and diameter distribution range of the prepared silver nano-wire is relatively narrow, and the application range of the silver nano-wire in the field of analysis and detection is widened. The invention also relates to an SERS detection method using the prepared silver nano-wire as a substrate. The method is applied to detection of common aquatic product prohibited drugs, and compared with the prior art, the method has the advantages of higher sensitivity, lower detection limit and lower cost.

The invention belongs to the field of pharmaceutical preparations. For the defects that sticking of a clopidogrel hydrogen sulfate material exists and tablets prepared from the clopidogrel hydrogen sulfate material are prone to hydrolysis in the storage process, a method for preparing non-sticking clopidogrel hydrogen sulfate intermediate particles is discovered, the clopidogrel hydrogen sulfate intermediate particles are further prepared into tablets, and the tablets are good in formability and can be continuously compressed without sticking. The tablets are simple in preparation method, can be produced by adopting a conventional preparation method without special equipment, has the significant advantages of being easy to industrialize, high in production efficiency, good in stability, controllable in quality and the like and has the outstanding substantive feature and the significant improvement.

The invention belongs to the technical field of microwave dielectric materials, particularly relates to a spray granulation method of microwave dielectric powder, and further discloses a preparation method of the microwave dielectric material. According to the spray granulation method of the microwave dielectric material powder, spray granulation treatment is carried out by adopting the mixed gluesolution of the PEG glue, the PVA glue and the polyacrylic acid glue in a proper proportion, and the plasticity of a green body can be effectively improved, the pressing pressure of the green body isreduced and the cracking of the green body is eliminated by utilizing the PEG glue; polyacrylic acid and PVA are matched for use; the viscosity of the slurry can be effectively improved under the condition of high solid content, the strength of the green body is improved, the problem of mold sticking caused by PEG during subsequent dry pressing molding can be effectively solved, the problems of high pressing pressure, easiness in cracking and the like of various microwave dielectric materials during dry pressing molding of porous parts and special-shaped parts can be effectively solved, and the molding performance of spray granulation powder is improved.

The invention provides a damping spacer used between liquid crystal substrates. Specifically, the spacer is embedded between the upper liquid crystal substrate and the lower liquid crystal substrate,has lattice distribution shape and is provided with a plurality of serrated prominences respectively along the direction of x axis and the direction of y axis. The serrated prominences have height difference in the direction x axis and the direction of y axis. The invention also provides a packaging structure containing the spacer. Being adopted, the spacer and the packaging structure of the invention can not only reduce the probability of crushing the lower liquid crystal substrate but also form an airflow circulation loop by employing the height difference of the serrated prominences of thespacer and improve the problem of sticking between the spacer and the liquid crystal substrates due to the adsorption effect.

The invention discloses a spray granulation method and a preparation method of microwave dielectric powder for a filter, and belongs to the technical field of ceramic materials. The spray granulationmethod comprises the following steps: fully dispersing and grinding a microwave dielectric material to obtain raw material slurry; adding the raw material slurry into a glue solution, and uniformly mixing, wherein the glue solution comprises PEG glue, PVA glue, a surfactant, a demolding agent and a defoaming agent; and carrying out spray granulation on the uniformly mixed solution by using a spraydryer. According to the invention, the PEG glue is utilized to effectively improve the plasticity of the green body, reduce the pressing pressure of the green body, eliminate the cracking of the green body, and reduce the problems of easy cracking, easy damage, easy breakage of corners, rough surface and the like of the green body in the CNC machining process; and by utilizing the surfactant, theviscosity of the slurry can be effectively improved under the condition of high solid content, the strength of a green body is improved, the problem of mold sticking caused by PEG glue during subsequent dry pressing molding can be effectively solved, and the molding performance of spray granulation powder is improved.

The invention discloses a ground track gauge changing matched device of a track gauge changing bogie. The device includes a steel rail, sleepers, a matched ground track gauge changing device mountingrack, an alignment rail, a bearing rail, an unlocking rail and a track gauge changing driving rail. The ground track gauge changing matched device is applicable to the track gauge changing bogie integrating end face driving, alignment and locking; the alignment rail is matched with an alignment device, and an alignment rolling wheel assembly rolls on an alignment rolling wheel running rail to makeaxles aligned; the bearing rail is matched with an axle box bearing boot to make a wheel set unloaded in the air and stay in an axially slidable state; an unlocking lifting lug clamping rail is matched with an unlocking lifting lug to make a locking device unlocked or locked tightly. The track gauge changing driving rail is matched with an end face driving device to make the wheel set axially slide along with a track gauge changing driving device to achieve the purpose of changing the track gauge.

The invention discloses a cetirizine hydrochloride tablet, which is prepared by the method that cetirizine hydrochloride and polyoxyl stearate are dissolved in ethyl alcohol, diatomite is added into asolution to be evenly stirred, drying is carried out to obtain a mixture, and then, the mixture is mixed with silicified microcrystalline celluloses, disintegrating agents and lubricating agents to carry out tableting. The cetirizine hydrochloride tablet prepared by the method can be quickly dissolved out, is free from sticking and does not corrode a trimming die.

The invention provides an ultra-thin keyboard switch. A keycap is provided with a cap top, and a surrounding wall arranged around the cap top in an extruding manner; a balance rod is provided with an intermediate part, a first bending part and a second bending part that are bent in the same direction from the two ends of the intermediate part respectively, and a first hook part and a second hook part that extend relatively from the end parts of the first bending part and the second bending part respectively; the intermediate part is clamped in a holding space among a first side edge holding wall, a second side edge holding wall and the surrounding wall; an intermediate accommodation cavity is arranged in the middle of a rubber cover for accommodating a matched handle; in addition, a side edge groove corresponding to a peripheral platform is arranged on the edge on one side; the side edge groove and the peripheral platform jointly form a clamping hole; and the first hook part and the second hook part of the balance rod are arranged in the left end and the right end of the clamping hole respectively. With the adoption of the ultra-thin keyboard switch, a clamping stagnation problem in a use process of the keyboard switch can be improved obviously, and the keyboard switch keeps smooth in a striking use process.

The invention discloses an EGR valve with a heating water cavity and relates to EGR valves. The technical problem that an existing EGR valve is likely to be frozen in severe cold regions is mainly solved. The EGR valve with the heating water cavity comprises a valve body, and further comprises a shell wrapping the valve body. The heating water cavity is formed in a clearance between the valve bodyand the shell, and a water inlet and a water outlet communicating with the heating water cavity are formed in the shell. The invention further discloses a heating method of the EGR valve with the heating water cavity. According to the EGR valve with the heating water cavity and the heating method, cooling water of an engine is introduced into the heating water cavity, the cooling water is circulated between the heating water cavity and the engine to heat the valve body, and the problem that the EGR valve is frozen in the severe cold regions can be effectively solved.

The invention discloses an oil tea fruit shell powder adding agent and a preparing method and application therefore, and relates to an adhesive adding agent and a preparing method and application thereof. The problem that existing aldehyde adhesive difficultly glues a straw-based panel effectively, and panel sticking exists in isocyanate adhesive is solved. The adding agent comprises modified oil tea fruit shell powder and modified nano-montmorillonite. The method comprises the steps of firstly, preparing of modified oil tea fruit shell powder; secondly, preparing of the modified nano-montmorillonite and thirdly, preparing of the oil tea fruit shell powder adding agent. The modified oil tea fruit shell powder obtained through the method is added into the adhesive, the straw-based panel is bonded, the gluing strength and water resistance are improved, and the agent is used for the field of the straw-based panel adhesive adding agent.

The invention provides a natural extract effervescent tablet and a preparation method thereof. The natural extract effervescent tablet of the invention contains a zinc ion compound and a coating agent wrapping the zinc ion compound and a natural extract, so that the common sticking phenomenon in a production process of the natural extract effervescent tablet at present is remarkably improved, the disintegration time of the effervescent tablet is shortened, the precipitation of the final effervescent solution is avoided, and on the premise of ensuring the quality of the effervescent tablet, the addition amount of the effective component, namely a naturally extracted product, is greatly increased.

The invention relates to the field of liquid level measuring sensors, and provides a ship sewage tank liquid level sensor which comprises a floater type magnetostriction liquid level sensor installed on the top of a sewage tank and a static pressure type liquid level sensor installed at the bottom of the side wall of the sewage tank. The floater type magnetostriction liquid level sensor comprises a magnetostriction probe rod, a flange and a floating ball. A cylindrical floating ball guide pipe is welded to the lower portion of the flange. The magnetostriction probe rod is installed on the flange through threads. The magnetostriction probe rod and the floating ball are both located in the floating ball guide pipe. The floating ball can freely move in the space defined by the floating ball guide pipe and the magnetostriction probe rod. A first elastic separation bag is installed outside the floating ball guide pipe. The first elastic separation bag is filled with first pressure conduction liquid. The floater type magnetostriction liquid level sensor and the static pressure type liquid level sensor work independently in a separated mode and are backed up for each other. The ship sewage tank liquid level sensor is high in anti-pollution capacity, capable of achieving continuous real-time monitoring, safe to use and reliable in work.

The invention discloses a high-performance thin-wall polypropylene composite material with improved mold sticking and a preparation method thereof. The polypropylene composite material comprises the following raw materials in parts by weight: 57-75 parts of polypropylene; 14 to 28 parts of functional talcum powder master batch; 8-17 parts of an elastomer; 0-1 part of an antioxidant; 0-3 parts of other auxiliary agents; the invention has the following advantages: in the formula design of the thin-wall polypropylene composite material, the high-efficiency functional talcum powder master batch is adopted to replace the traditional modified polypropylene formula to directly use talcum powder and an auxiliary agent to prepare the material, and the functional talcum powder master batch takes high-fluidity polypropylene as a carrier; when a polymer system is extruded from a twin-screw or an injection molding machine, the high-mesh talcum powder and the elastomer can be well and uniformly dispersed into a composite material system, and meanwhile, the composite lubricant in the functional talcum powder master batch firstly moves towards the outer side of a material melt and is enriched on the surface layer of the material, so that the lubricating property of the whole material system is improved.

The invention provides a domperidone orally disintegrating tablet. The domperidone orally disintegrating tablet is prepared from, by weight, 6-12 parts of domperidone, 70-90 parts of a filling agent,5-12 parts of a disintegrating agent, 1-6 parts of a sweetening agent, 1-3 parts of a flow aid and 0.1-1 part of a lubricating agent. According to the domperidone orally disintegrating tablet, a formula and the preparing technology are improved, and thus the liquidity of tabletting materials is improved; according to monitoring data of the surface smoothness, the taste, the tablet weight difference and the dissolution rate of the tablet, it is shown that after the technology is improved, the domperidone orally disintegrating tablet meets stipulation or is better, the problems of sticking, an unsmoothed tablet surface, a large tablet weight difference, an unsmoothed taste and the like appearing in the tabletting process are solved, the product meets the quality standard requirement, and thequality is guaranteed.