86results about How to "Reduce the chance of sticking" patented technology

The invention relates to the technical field of motor control, in particular to a method for realizing medium phase zero-breaking and zero-closing by a control protection switch. The control protection switch is a carrier to realize the method, and comprises a central processing module and a contactor module. The method is characterized by comprising the following steps that: a main CPU singlechip of the central processing module acquires a voltage signal through a voltage signal acquisition circuit, and acquires a current signal through a current signal acquisition circuit; then a three-phase electricity zero-crossing point period is compared with electrified closing mechanical time and power off breaking mechanical time of the contactor module; and a closing or breaking signal after judgment is sent so as to close or break the contactor module of the control protection switch on the medium phase zero point of the three-phase electricity. The method is a simple and effective method for relieving the overvoltage and overcurrent impact, improves service life of the switch body, reduces abrasion of a contactor material, and reduces consumption of noble metal resources.

The invention relates to aquaculture bivalve offspring seed production, in particular to a method for preventing pinna pectinata larvae from floating upwards and adhering. Two wave-making pumps are arranged in a diagonal shape on the pond wall of a culture pond in a width direction; waves and water flows which are generated by the wave-making pumps are used for dispersing the pinna pectinata larvae so that the pinna pectinata larvae are uniformly distributed in the culture pond, thus the pinna pectinata larvae are prevented from floating upwards and adhering; 24 hours after pinna pectinata fertilized ovums are incubated into D-shaped larvae, when the D-shaped larvae float upwards and are adhered, the wave-making pumps are installed; the proper power of the wave-making pumps is 12-30 W, the proper flow rate is 5-10 m3/h, the proper distance horizontally kept between the water outlet centers of the wave-making pumps and a water surface is 15-25 cm, and the proper distance between the water outlet centers of the wave-making pumps and the adjacent pond wall of the culture pond is 20-40 cm. The invention can reduce upward floating and adhesion ratio matched groups of the pinna pectinata larvae more than 80 percent, enhance the survival rate by 80 percent without obvious adverse effect on the growth of the larvae and achieve the culture density of the larvae by 4-5/ml, thereby effectively enhancing the survival rate and the culture efficiency of the pinna pectinata larvae.

The invention discloses a large-flow continuous variable valve timing (CVVT) fuel control valve with a filter screen. The large-flow CVVT fuel control valve with the filter screen comprises a valve bush component, a rear yoke iron component, a front yoke iron component, an iron core component, a winding component and an outer yoke sleeve component, wherein the valve bush component consists of a valve bush (1), a return spring (2), a valve core (3) and a ring; the valve bush (1) is provided with a fuel feed port (12), an entrance angle oil port (17) and a lag angle oil angle (19); and the fuel feed port (12), the entrance angle oil port (17) and the lag angle oil angle (19) are pressed into the filter screen (18) respectively. The large-flow CVVT fuel control valve with the filter screen controls the fuel flow to increase by 50 percent, improves the quick response time of a valve timing actuator, increases a filtering function of the filter screen, effectively protects foreign matters from entering the fuel control valve, guarantees that the valve core can slide in the valve bush freely, reduces the possibility of the clamping stagnation of the valve core, increases the working reliability of a valve timing system, reduces the requirements of a motor on the using environment and prolongs the service life of a product.

The invention provides a food cooking method. The method comprises the steps of step 1, heating foodstuff at a first heating power; step 2, determining whether or not the temperature of the foodstuffexceeds a first critical temperature, and if the situation that the temperature of the foodstuff exceeds the first critical temperature is determined, proceeding to step 3; step 3, heating the foodstuff at a second heating power which is lower than the first heating power or stopping heating the foodstuff, and whipping for a predetermined period of time. The food cooking method can effectively alleviate bottom paste phenomenons due to the fact that when the risk of the bottom paste is detected, whipping is started while a heating mode is changed.

The invention discloses a preparation method of a lead storage battery green plate for reducing dusting powder. The preparation method successively comprises a gypsum mixing process, a gypsum daubing process and a solidifying and drying process, wherein the gypsum daubing process comprises a daubing section, an acid leaching and rolling section and a surface dry treatment section, and an acid leaching solution is prepared from the following components in parts by weight: 12.5-22 parts of 90-95% vitriol, 1-5 parts of fumed silica, 0.5-1 part of lauryl sodium sulfate and 72-86 parts of water. The method disclosed by the invention is simple in operation and is applicable to a positive electrode and a negative electrode, the diachylon water loss of the green plate is reduced under the condition of not increasing processes, and the dehydrating rate is reduced from original 1% to less than or equal to 0.8%; the possibility of diachylon adhesion between pole plates is reduced, the dusting powder on the surface of the pole plate is lowered, and the loss rate of weight of the pole plate is lowered from 0.5-1% to 0-0.4%.

The invention discloses a steam catapult with parallel, series and separation functions. The steam catapult comprises a shell, an air storage tank and an ejection unit. The ejection unit comprises a desk, a sliding block tunnel, a sliding block, a low-pressure cavity shell, a tunnel pipe, a cylinder, piston sleeves, a tapered frame and stamping water cylinders. The in-out flow of the front and rear single-double three stamping water cylinders are controlled by three step control valves separately, one-way valves and a switch valve are installed in pistons, the pistons are divided into two parts including pistons I and pistons II, the pistons I and the pistons II are fastened by bolts separately, and sliding ways and piston sleeves, corresponding to the sides of the pistons I, are composedof sleeve fame beams and are connected with tapered frame hollow columns and penetrate out of front covers to be connected with bearing beams. When the weight of a carrier is specified, the steam catapult can calculate the exact movement value of corresponding parts, pull rods are arranged at the centers the end faces of the pistons II, and the pistons II are internally provided with shaft cores and shaft core pistons for common use of ejection and back stroke. The steam catapult with the parallel, series and separation functions has flexible operation, reliable performance, high speed, high efficiency and good air tightness, and the heat utilization rate is improved.

The invention discloses a body cavity drainage tube. The body cavity drainage tube comprises a main drainage tube, and further comprises a branch drainage tube A and N branch drainage tubes B; one endof the main drainage tube is communicated with one ends of the branch drainage tube A and the branch drainage tubes B respectively; the other ends of the branch drainage tubes B are closed; one ends,communicated with the main drainage tube, of the branch drainage tubes B are connected to the end part surface of the one end of the main drainage tube; the end part of the one end of the branch drainage tube A is located at the middle-lower part of the end part surface of the main drainage tube; the end parts of the one ends of the branch drainage tubes B are located at the middle-upper part ofthe end part surface of the main drainage tube in an equal arc distance or equidistance manner; and N is a natural number greater than or equal to 2. The body cavity drainage tube claimed in the invention can replace a traditional tubular drainage tube or a spiral multi-channel drainage tube, and is designed to be a sector-shaped multi-channel drainage tube, so generated blood or a diffusate in the operation area is fully drained, and inflammatory adhesion is reduced; and the body cavity drainage tube also can be used as a body cavity hyperthermia perfusion drainage tube, so body cavity hyperthermic perfusion chemotherapy can be fully carried out in the body cavity.

The invention discloses sunflower seeds with a tomato flavor and a processing method of the sunflower seeds, and belongs to the technical field of food processing. The method involves the sunflower seeds with the tomato flavor, and processing raw materials comprise tomato sauce. The processing method of the sunflower seeds with the tomato flavor comprises the processing steps of weighing the raw materials including the tomato sauce, brine preparation, stewing, draining, drying and cooling. The sunflower seeds with the tomato flavor and the processing method of the sunflower seeds have the advantages that the tomato sauce is taken as the raw material to prepare the sunflower seeds, the processed sunflower seeds are delicious with slight sweetness and sour, can promote salivary secretion, reduce sweet greasy and greasy feelings and can prevent thirst, excessive internal heat and other problems caused by excessive intake of the sunflower seeds when the sunflower seeds are eaten. The sunflower seeds with the tomato flavor have an oral cavity drying coefficient less than 5.0, and are obviously superior to commercially available sunflower seeds.

The invention relates to a reaction cup, and concretely discloses a reaction cup used for automatic chemical luminescence immunoassay instrument, the reaction cup comprises a cup body filled with a carrier, the profile of the cup body is in a conical shape with a gradually downward reduced diameter, an annular rectangular bench is arranged outside the cup rim of the cup body, at least three uniformly distributed circular-arc contact points are arranged at lower end of the annular rectangular bench; the bottom of a cup core space is an arc-shaped spherical surface, the upper part of the cup core space is a conical surface cooperated to the profile of the cup body, smooth transitioning is realized between the arc-shaped spherical surface and the conical surface; the reaction cup can employ a staked mode for storage; wherein the annular rectangular bench can clamp the reaction card in a reaction aperture of an incubation apparatus, at least three uniformly distributed circular-arc contact points are arranged at lower end of the annular rectangular bench, when the reaction cups are stakes, the contact area is little, so that the adhesion probability between the reaction cups while loading can be reduced.

The invention discloses a structure and a manufacturing method of a high- density PCB, and further discloses a DIP (Double In-line Package) LED display adopting the high-density PCB. The manufacturing method of the high-density PCB comprises the following steps: adjacent bonding pads are respectively mounted at the center line position deviated from welding holes, at which diversion pads are arranged. By adopting the method provided by the invention, pins are not adhered when the high-density PCB is subject to wave soldering and solder impact during manufacturing. The high-density PCB is suitable for large-scale industrial production and application.

The invention discloses a compact pressure self-compensation total-sea-depth stop valve, and belongs to the relevant technical field of valve bodies. The compact pressure self-compensation total-sea-depth stop valve comprises two stop valve bodies which are oppositely arranged on the same valve body and are of the same structure. Each stop valve body comprises a stop valve screw plug assembly, a valve element assembly, an isolation pressure sheet assembly, a valve sleeve, a stop valve spring and a valve seat. The stop valve bodies are opened in a manner of being hydraulically driven, and therefore remote control can be achieved. Closing of the stop valve bodies is achieved through the force of the stop valve springs and hydraulic force generated by the area difference between the two sidesof the large end of the valve element assembly. The form of ceramic and stainless steel cooperation is adopted in cooperation between the valve element assembly and other parts, friction force in themotion process of the valve element assembly is effectively reduced, and meanwhile the possibility of jamming of the valve element assembly is reduced. The two oppositely-arranged stop valve bodies use the same valve seat in common, and the space utilization rate is increased. According to the compact pressure self-compensation total-sea-depth stop valve, the structure is simplified, the size isreduced, and then the complexity and cost of a buoyancy adjusting system of a submersible are reduced.

The invention relates to the technical field of stamping equipment, and discloses a stamping device for manufacturing and processing aluminum alloy doors and windows, which comprises an upper clamping piece, a stamping head is arranged in the upper clamping piece, a main body is arranged below the upper clamping piece, a lower clamping piece is movably mounted in the main body, and the lower clamping piece is movably mounted in the main body. An air cavity is defined by the lower clamping piece and the main body together. Through the arrangement of the inclined plate and the discharging plate, when the lower clamping piece moves downwards, the supporting piece can push the inclined plate to contract, then the discharging plate is attached to the hole diameter of the discharging hole, then when the lower clamping piece moves upwards, the discharging plate is reset, the hole diameter of the discharging hole is increased, waste materials in the discharging hole are not prone to being clamped in the discharging hole, and the discharging efficiency is improved. And meanwhile, when the discharging plate is reset, the inclined plate can be driven to be reset, so that the inclined plate moves relative to the lower surface of the workpiece making contact with the inclined plate, the workpiece is rubbed and vibrated, and the workpiece is further promoted to be separated from the lower clamping piece.

The invention provides an additive for a coating used in a public place and relates to the technical field of coating additives. The additive comprises the following constituents in percentage by weight: 10-15 percent of nano-alumina, 15-20 percent of nano-silica, 8-10 percent of nano-zinc oxide, 5-10 percent of a drier and a solvent in balance amount, wherein the drier is one or two of zinc isoocatanoate and dibutyltin dilaurate; the solvent is one or more of butyl acetate, dimethyl carbonate and isopropanol. The additive provided by the invention has the advantages that the problems that the coating used in the public place is single in manufacturing function, cannot have good weather resistance, rapid drying performance, an anti-bacterial function and a self-cleaning function simultaneously, so that the problem that high public health security cannot be ensured is solved.

The invention provides a device system for producing sintering-expanded haydite by red mud. The device system comprises a material mixing machine, a disk pelletizer, a drying device, a calcination device and a cooling device, wherein the disk pelletizer is connected with the material mixing machine; the drying device is connected with the disk pelletizer; the calcination device is connected with the drying device; the cooling device is connected with the calcination device for carrying out quenching processing on a pellet subjected to calcination to enable the surface of the pellet to be quickly solidified so as to prevent the pellet from being shrunk while the ceramic pellets are prevented from adhering. According to the device system, solid wastes are used as main raw materials, Fe2O3 resources in the red mud are used, Fe2O3 reacts with carbon to serve as gas forming agent to replace a situation that carbonate is traditionally taken as the gas forming agent, and resources are saved; in addition, the carbon can be used as the reducing agent of Fe2O3 in the pellet and also can be used as fuel for supplementing a heat source, and energy consumption is saved. The device system adopts an air cooling technology after materials are subjected to calcination, an adhesion rate between haydites can be lowered, and the finished product rate of a product is improved.

The invention discloses applications of bovine bone peptide in preparation of drugs and food for treating and preventing osteoporosis, wherein the drugs and the food are particularly suitable for postmenopausal women. According to the present invention, the new applications of the bovine bone peptide are found by constructing osteoporosis animal models, wherein the osteoporosis treatment and prevention drugs and the osteoporosis treatment and prevention food prepared from the bovine bone peptide are safe, effective and reliable compared to hormones.

The invention discloses a structure for reducing melt wrappage adhesion of crust breaking chips. The structure comprises the crust breaking chips body, a hammer rod, a scraper, a sleeving, a cross-shaped notch, hammer rod holes, scraper holes and sleeving holes, wherein the crust breaking chips body and the hammer rod are connected into a whole, the crust breaking chips body is sleeved with the scraper, the hammer rod is sleeved with the sleeving, the scraper and the sleeving are arranged into a whole, and specifically, the cross-shaped notch is formed in the end part, close to the hammer rod,of the crust breaking chips body, the hammer rod holes are formed in the hammer rod in the axial direction at equal intervals, the hammer rod holes are formed in the circumferential direction of thehammer rod in a circumferential array mode, the scraper holes are further formed in the scraper, and the sleeving holes are formed in the sleeving. The structure for reducing the melt wrappage adhesion of the crust breaking chips has the advantages that flowing airflow can be fully utilized to cool the hammer rod of the chips body, the probability of the melt wrappage adhesion of the crust breaking chips body is effectively reduced, and stable operation of an electrolytic cell crust breaking and discharging system can be favorably maintained.

The invention discloses a making process of a protective film used for ferrite sintering. The making process is used for forming a layer of protective film on the surface after sintering of ferrite raw magnetic sheets, and the protective film can greatly reduce the phenomenon of adhesion of ferrite magnetic sheets in the sintering process, so that the percent of pass of the ferrite magnetic sheetsis increased; after sintering of the ferrite magnetic sheets is completed, sheet setting can be directly performed on the ferrite magnetic sheets without independently cleaning each ferrite magneticsheet, thus saving the single magnetic sheet treatment time and improving the production efficiency of the ferrite magnetic sheets.