165results about How to "Good release effect" patented technology

The invention provides a polyester-based composite functional master batch as well as a preparation method and application thereof. The polyester-based composite functional master batch is prepared from the following components in parts by weight: 54 to 100 parts of polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester, 4 to 27 parts of a lubricating agent, 0.5 to 2 parts of a compatilizer, 0.5 to 10 parts of a light diffusion agent, 1 to 8 parts of a dispersing agent and 4 to 10 parts of tackifying resin. The polyester-based composite functional master batch provided by the invention is added in the process of processing and forming a polyethylene glycol terephthalate-1, 4-cyclohexanedimethanol ester-based light diffusion plate, so that the flowability and the demolding property can be improved, and the prepared product has excellent light transmittance and haze at the same time.

The invention relates to the technical field of low-temperature casting, and discloses an automobile aluminum alloy hub low-temperature casting device which comprises a casting table, a supporting frame is fixedly connected to the upper surface of the casting table, a die-casting machine is fixedly connected to the upper surface of the supporting frame, and a linear motor is fixedly connected to the upper surface of the casting table. According to the hub casting device, the movable clamping block cannot be continuously fixed to the pressing plate after being not locked by the plug pin, so that the upper die base can be rapidly detached, then the upper die bases with different diameters are replaced according to the inner diameter of a hub needing to be cast, and the hub casting efficiency is improved. The upper die base can be rapidly installed on the pressing plate by pushing the plug pin to be inserted into the movable clamping block, the applicability of the device is improved, the use convenience is also improved, the movable lower die plate is pulled away from the clamping frame in advance, and the situation that the machining efficiency is reduced due to the fact that the upper die base cannot take up the hub blank due to adhesion of the hub blank and the movable lower die plate can be avoided.

The invention relates to the field of polystyrene auxiliaries, and particularly discloses a coating agent for expandable polystyrene as well as a preparation method and application of the coating agent. The coating agent for expandable polystyrene is prepared from the following raw materials in parts by weight: 28 to 42 parts of mono / diglycerol fatty acid ester, 32 to 42 parts of triglyceride, 22 to 32 parts of stearate, 1 to 5 parts of ethylene bis stearamide and 2 to 3 parts of polyvinyl alcohol, and the granularity of the raw materials is 300 to 325 meshes. The coating agent provided by the invention can be used for light-grade, flame-retardant and common-grade expandable polystyrene, and can reduce adhesion and agglomeration among expandable polystyrene particles, enhance the demolding effect and reduce volatilization and loss of a foaming agent and an auxiliary agent.

The invention discloses an end socket forge piece forming device and a demolding method, belongs to the technical field of end socket manufacturing, and solves the problem that an existing end socket forge piece is difficult to demold. The end socket forge piece forming device comprises a punch, a punch connecting frame and a transition connecting plate. The punch comprises a punch connecting part and a punch punching part fixedly arranged on the lower surface of the punch connecting part; the punch connecting frame is connected with the press movable cross beam, the upper end of the transition connecting plate is connected with the punch connecting frame, and the lower end of the transition connecting plate is connected with the punch connecting part; a second vertical pin hole is formed in the punch connecting part and located above the end socket forge piece. During punching, the movable cross beam of the press drives the punch connecting frame and further drives the punch to press down; and after punching is finished, the transition connecting plate is detached, the position of the second vertical pin moves downwards, the second vertical pin makes contact with the two ends of the end socket forge piece, pressure acts on the end socket forge piece, and demolding of the end socket forge piece and the punch is achieved. When the device is used for demolding, the demolding efficiency is high, and the demolding effect is good.

The invention discloses a diflufenican-containing compound and a processing technology thereof, and relates to the technical field of agriculture. The diflufenican-containing compound agent is prepared from the following components in percentage by mass: 10 to 20 percent of diflufenican, 8 to 12 percent of isoproturon, 8 to 12 percent of florasulam, 0.5 to 1 percent of an anti-freezing agent, 0.5 to 1 percent of a de-foaming agent, 1.5 to 2.5 percent of a cosolvent, 1 to 3 percent of a wetting agent, 0.5 to 1 percent of a preservative, 1.5 to 3.5 percent of a dispersing agent and the balance of water. The defoaming agent is prepared from butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane, and the defoaming agent is prepared from the butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane; the dispersing agent is prepared from polyether amine bridging modified sodium lignin sulfonate. The pesticide is loaded on the nano silicon dioxide, so that the pesticide has good release performance and stability, the utilization rate of the pesticide is improved, the nano pesticide is small in size, the pesticide can better permeate into plant tissues, and a better prevention and treatment effect is achieved.

The invention relates to the technical field of thermoplastic material forming, in particular to a precise thermoplastic material forming device and a manufacturing method thereof.The precise thermoplastic material forming device comprises a female die fixing plate, and guide rods are directly arranged at the four corners between the female die fixing plate and a male die fixing plate; a female mold plate is installed on the female mold fixing plate, an extrusion pipe used for extruding hot melt plastic is arranged between the female mold fixing plate and the middle of the female mold plate in an embedded mode, and a water circulation channel is arranged in the female mold. According to the device, efficient and accurate control over thermoplastic material forming is achieved through a well-designed mechanical structure and a well-designed hydraulic transmission system. Specifically, the hydraulic transmission assembly of the machine tool drives the movable plate to move left and right, accurate mold closing and mold opening of the female mold plate and the male mold plate are achieved, uniform mold release agent spraying can be conducted on the mold before mold closing, the service life of the mold is effectively prolonged, and the quality of formed plastic products is effectively improved.

The invention relates to the technical field of cement product overturning, and discloses a cement product prefabricated part overturning device which comprises a cement prefabricating mold and supporting frames located at the two ends of the cement prefabricating mold, supporting transverse rods are fixed to the upper portions of the supporting frames, and lifting assemblies are arranged on the supporting frames. A first servo hydraulic cylinder is fixed to the lifting assembly, a mounting plate is fixed to the end of the first servo hydraulic cylinder, a servo motor is fixed to the mounting plate, and a mechanical clamping jaw is fixed to a motor shaft of the servo motor. The two ends of the cement prefabricating mold are respectively provided with a C-shaped plate, and the two ends of the cement prefabricating mold are respectively fixedly provided with a first sliding bracket, so that the purpose that an opening of the cement prefabricating mold can be quickly reversed downwards can be achieved, the overturning efficiency can be greatly improved, the frequency of manual operation can be reduced, time and labor are saved, and convenience and rapidness are realized; and the operation safety is improved.

The utility model discloses a new energy control box shell die-casting die, which relates to the technical field of new energy control box production and comprises a rack, an upper die is fixedly arranged at the upper end of the inner wall of the rack, sliding holes are formed in the lower ends of the two sides of the rack, sliding blocks are arranged in the two sliding holes in a sliding and penetrating manner, and cross rods are rotatably sleeved in the two sliding blocks. Electric cylinders are fixedly arranged on the two sides of the outer wall of the rack, the tail ends of the electric cylinders are fixedly connected with the sliding blocks, racks are fixedly arranged at the lower end of the outer wall of the rack, gears are arranged on the racks in a meshed mode, the gears are fixedly connected with the transverse rods in a sleeved mode, and a vertical plate is fixedly arranged at the bottom of the lower die. According to the machine frame, the upper mold, the lower mold, the sliding block, the cross rod, the gear, the rack, the electric cylinder, the vertical plate, the supporting block, the spring and the knocking block, the outer wall of the lower mold can be knocked in the process of shell forming and lower mold overturning, so that a shell part can stably fall off from the lower mold, and the demolding effect is improved.

The invention relates to the technical field of injection molding machining, and discloses an injection mold machining and forming device which comprises a workbench, a material receiving assembly, a workbench obliquely arranged in the forming assembly in a front-back swinging mode, a first linkage assembly, a second linkage assembly, a third linkage assembly and a fourth linkage assembly. The first linkage assembly is arranged at the position between the movable mold base and the material receiving assembly, the movable mold base slides left and right to drive the material receiving assembly to conduct front-back swing adjustment, the air storage assembly is arranged on the forming assembly, compressed air is collected into the air storage assembly through actions of the first linkage assembly, and the second linkage assembly is arranged at the position between the push rod and the switch valve. And the sliding of the push rod drives the switch valve to open or close. According to the demolding device, the machining quality requirement of a formed product can be met after demolding, the requirement for compressed air can be provided for demolding under the condition that no power element exists, and therefore the requirement for energy of the demolding device is reduced.

The utility model relates to the technical field of casting machines for continuous production in the iron alloy industry, in particular to a one-time forming alloy casting machine. Comprising a hydraulic ladle turning machine and a transmission device, the transmission device comprises a motor, a speed reducer, a driving chain wheel, a driven chain wheel, a chain belt and a roller base; the roller base comprises an upper base and a lower base; a wide overflow type molten iron flow tank is arranged right above the driven chain wheel; the chain belt is provided with an anti-splashing long-life granulating casting mold and a transmission shaft; the transmission device is provided with a plurality of condensing devices matched with the anti-splashing long-life granulating casting molds; the lower base is provided with two pairs of special demolding devices matched with the anti-splashing long-service-life granulation casting molds. The problems that iron alloy products cannot be formed at a time, and demolding, molten iron flow control, iron block particle size uniformity and the like are caused by molten iron medium characteristics and particle size differences of a conventional pig casting machine after one-time forming are effectively solved.

The invention discloses a high-moisture nano-type soil conditioner and a preparation method thereof, and belongs to the field of fertilizers. The high-moisture nano-type soil conditioner is prepared from the following components in parts by weight: urea, monopotassium phosphate, potassium nitrate, anhydrous magnesium sulfate, zinc sulfate, a composite nano-type water-retaining agent and organic matter modified attapulgite. The organic matter modified attapulgite and the composite nano-type water-retaining agent are added into the soil conditioner, so that the water storage capacity of soil is improved, a good soil structure foundation is provided for the organic matter, and adsorption and permeation of water are promoted; the modified attapulgite and the water-retaining agent further enhance the water absorption, storage and release capabilities of the soil; the modified attapulgite and the composite nano water-retaining agent can form a water buffer reservoir in the soil, provide water under drought conditions, absorb excess water under rainfall conditions, maintain proper water content of the soil and improve the soil moisture content of the soil.

The invention provides a fused cast explosive substitute material, a preparation method and application, and the fused cast explosive substitute material comprises the following raw material components in percentage by mass: 0-55% of microcrystalline wax, 0-55% of Fischer-Tropsch wax, 10-15% of light calcium carbonate, 1-4% of stearic acid, 20-44% of sodium sulfate and 8-20% of ammonium sulfate, and the sum of the mass percentages of all the components is 100%. And the mass sum of the microcrystalline wax and the Fischer-Tropsch wax accounts for 30-55% of the total mass of the fused cast explosive substitute. The preparation method comprises the following steps: adding the light calcium carbonate, the sodium sulfate and the ammonium sulfate according to the formula ratio into an acoustic resonance mixing container with the resonance frequency of 40-60Hz, melting and mixing for 10-30 minutes at the acceleration of 10-30g under the condition of 90-120 DEG C to obtain a uniformly dispersed mixed material, then adding the microcrystalline wax and / or the Fischer-Tropsch wax and the stearic acid according to the formula ratio into the mixed material, and uniformly mixing to obtain the product. Melting and mixing for 10 to 30 minutes at the acceleration of 30 to 50g, and then mixing for 10 to 30 minutes at the acceleration of 30 to 50g, so as to obtain the product. The test results of viscosity, density and melting point of a suspension prepared by melting and mixing the substitute provided by the invention are equivalent to the thermophysical properties of a real material formula.

The invention relates to the technical field of shoe sole forming equipment, in particular to supercritical fluid foaming EVA shoe sole forming equipment which comprises a base, a working frame, turnover demolding auxiliary assemblies, an upper mold, a lower mold, a cooling assembly and a cooling auxiliary assembly. The cooling assembly comprises a cavity plate, a cavity cylinder, a circulating copper pipe, a perforated ball, a liquid inlet adapter pipe and a connecting rod, the bottom end of the connecting rod is fixedly connected with a first convex block and a second convex block, and a dredging groove is formed between the surface of the liquid inlet adapter pipe and the inner wall of the perforated ball; the cooling assembly and the cooling auxiliary assembly can improve the cooling effect of the joint of the inner bottom wall of the lower mold cavity and the shoe sole, so that the demolding effect is improved, and the problems that existing cold air cannot be uniformly blown to the joint of the shoe sole and the inner bottom wall of the lower mold cavity, so that the cooling efficiency is low, and the demolding effect is poor are solved. And the time for hardening the sole to a suitable demolding degree is prolonged.

The utility model relates to the technical field of bread demolding, in particular to automatic demolding and pouring equipment for bread. The pouring device comprises a pouring platform, fixing assemblies and a pouring mechanism, the pouring platform is horizontally arranged, a rotating shaft is rotationally arranged in the middle of the pouring platform, the pouring platform is divided into a feeding area and a discharging area through the rotating shaft, a turnover frame is connected to the rotating shaft, and the fixing assemblies used for clamping and fixing the two ends of a mold box from the two sides at the same time are arranged on the inner side of the turnover frame. A pouring mechanism for driving the rotating shaft to rotate is arranged at one end of the rotating shaft. The fixing assembly is arranged in the overturning frame, the hydraulic cylinder, the rotary disc and the pulling plate are matched, the two sets of clamping plates with the inserting grooves can be driven to move towards the middle on the inner side of the overturning frame at the same time, the two ends of a mold box can be clamped and fixed from the two sides at the same time in the moving process, and the stress uniformity of a mold is improved; the abrasion degree is reduced, and the clamping stability in the process that the overturning frame drives the mold box to overturn is guaranteed.

The invention relates to the technical field of fertilizers for tea gardens, and discloses a selenium-rich fertilizer for tea trees and a preparation method of the selenium-rich fertilizer. 4-8 parts of ammonium nitrate; 2.1 to 3.5 parts of calcium ammonium nitrate; 6-11 parts of ammonium sulfate nitrate; 10 to 14 parts of triple superphosphate; 15-19 parts of powdered rock phosphate; 22-28 parts of plant ash; 8 to 12 parts of sodium selenite; 7 to 9 parts of selenosulfinic acid; 0.4 to 1.3 parts of zinc; 0.73 to 1.12 parts of iron; 0.56 to 0.84 part of manganese; 4-7 parts of lime; 1-3 parts of sulfur; 0.81 to 0.93 part of bentonite; by adding the sodium selenite and the selenosulfinic acid in a set proportion into the raw materials and combining a staged preparation process, efficient and stable selenium fertilizer production can be realized, so that the selenium content in the tea leaves is increased, and the problems that the selenium content in the tea leaves is insufficient due to lack of addition of selenium elements in an existing tea tree fertilizer and the selenium content in the tea leaves is low are finally solved. The requirement of the market on the selenium-rich tea cannot be met.

The application discloses a kind of plasma jet array devices for large size epoxy surface modification, including frame, tank, gas cylinder for loading inert gas, aperture network, high voltage power supply and metal insert;Tank and metal insert are fixed on frame, tank is flat tank and its slot is formed with jet airway for placing and fixing epoxy insulation, the bottom and side of tank are provided with jet spout arranged in array, jet spout is connected by gas inlet pipe, gas inlet pipe is arranged in the inside of side plate and bottom plate of tank;Aperture network is connected on jet spout and connects high voltage power supply, tank is grounded by wire;Metal insert is inserted above epoxy insulation, metal insert is grounded by wire.The application also discloses the use method applied to the above device.Adopting the application, the surface of large size epoxy insulation can be quickly and uniformly modified, and the charge release capacity is improved.

The circular knife mold comprises a base, a top plate is arranged at the upper end of the base, a storage barrel is fixedly installed on one side of the top of the top plate, a rotating rod is arranged in the center of the interior of the storage barrel, and stirring blades are fixedly installed on the surface of the rotating rod; and a stirring motor is fixedly mounted in the center of one side of the storage barrel. According to the circular knife mold capable of preventing sticking of the knife point, through the design of a storage barrel, a rotating rod, stirring blades, a stirring motor, a liquid pump, a liquid pumping pipe, a liquid outlet pipe, a liquid inlet plate, a spray head, a rotating roller and a foaming cotton sleeve, the stirring motor drives the rotating rod to drive the stirring blades to continuously stir a release agent in the storage barrel; according to the mold release device for the circular knife mold, the performance and stability of a release agent can be kept during storage, so that the production efficiency is remarkably improved, the release agent is pumped out by starting a liquid pump and sprayed on a foaming cotton sleeve through a spray head, and the foaming cotton sleeve can absorb the release agent when the foaming cotton sleeve is in contact with a circular knife mold body.

The present disclosure aims to provide a coating composition capable of forming a coating film excellent in adhesion to a polycarbonate resin substrate, mold releasability, and smoothness, and low in VOC content. A coating composition comprising (A) a hydroxyl group-containing compound, (B) a polyisocyanate compound, and (C) a curing catalyst, and having a solid content concentration of 90% by mass or more, the hydroxyl group-containing compound (A) comprising a hydroxyl group-containing compound (A1) having a urea ester ring structure. A coating composition in which the content of the hydroxyl group-containing compound (A1) having a urea ester ring structure is in the range of 5 to 50% by mass, based on the total solid content amount of the hydroxyl group-containing compound (A).

The invention discloses an injection molding machine, belongs to the technical field of plastic processing equipment, and provides an injection molding machine which is simpler in structure and faster in demolding, the injection molding machine comprises a base, the base is provided with a pipeline arrangement box, a hydraulic control box, an electric control box, an injection mechanism, a mold assembly, an air exhaust pressure storage mechanism and an injection cut-off mechanism, and the mold assembly comprises a fixed mold; one side of the fixed mold is fixedly connected with an injection mechanism, the other side of the fixed mold is fixedly connected with a mounting plate through a guide column, a mold opening and closing drive is arranged on the mounting plate, and the movable end of the mold opening and closing drive is connected with a movable mold. The air exhaust and pressure storage mechanism is arranged to be matched with the tail end cut-off assembly to vacuumize the interior of the mold cavity before injection, it is guaranteed that all tiny corners in the mold cavity can be filled with raw material liquid, high-pressure airflow is returned into the mold cavity after raw material forming and before mold splitting, a formed part can be separated from the mold cavity instantly at the moment of mold splitting of the movable mold and the fixed mold, and the mold cavity is prevented from being damaged. Not only is the demolding efficiency improved, but also the structural complexity of the whole injection molding machine is reduced.

This application relates to the field of hydrosilylation, and in particular to a highly efficient catalyst for hydrosilylation reactions and its preparation method. This application provides a method for preparing a microcapsule-form catalyst, which first modifies methyl-terminated hydroxyl silicone oil with silazane, and then forms a microcapsule coating system with paraffin, thereby improving the release performance of the microcapsule coating system, so that the catalyst has low reactivity in the early stage of release, thereby improving the uniformity of the reaction process inside the silicone rubber, and thus improving the transparency and overall strength of the silicone rubber.

This invention provides a high-hygroscopic, water-free composite gel-type calcium and magnesium salt tablet and its preparation method, which is made from the following raw materials in parts by weight: 45-70 parts calcium and magnesium salt, 15-25 parts gum arabic, 3-15 parts mica powder, 2-12 parts polyethylene oxide, 0.5-2 parts sodium nitrite, and 2-30 parts gelatin. This tablet exhibits high hygroscopicity and excellent physical properties.

The utility model discloses a steering lamp shell forming die which comprises a die frame, the die frame comprises an upper die plate, a runner plate, an upper die frame and a lower die frame which are sequentially overlapped and connected from top to bottom, the die frame further comprises a lower die plate located below the lower die frame, die feet used for supporting the lower die frame are arranged between the lower die frame and the lower die plate, the upper die frame is provided with an upper die core, and the lower die frame is provided with a lower die core. The lower mold frame is provided with a lower mold core; the upper mold frame is provided with a plurality of upper mold core-pulling slots, and the upper mold core-pulling slots are connected with the upper mold core; the lower mold frame is provided with a plurality of lower mold core-pulling slots which are connected with the lower mold core; the plurality of upper mold core-pulling slots and the plurality of lower mold core-pulling slots are correspondingly arranged up and down; the upper mold core is provided with a material opening; a first water conveying structure is arranged in the upper mold frame; the upper mold core and the lower mold core are in concave-convex fit; the lower die frame is provided with a first wear-resistant block slot arranged around the lower die core; and a second water conveying structure is arranged in the lower die frame. The utility model has the advantages of simple structure and reasonable design.

The invention relates to a technology for fixing a coil before paint dipping of a large-scale shielding motor, and the technology comprises the steps: installing a supporting cylinder in a stator winding, measuring a gap between the supporting cylinder and the coil through an insulation paper patch, wrapping the supporting cylinder with conical insulation paper and an insulation adhesive tape, filling the gap, and tightening a linear segment of the coil through insulation paper and a binding tape. And after the stator winding is vertically placed, a paint dipping tool is installed to fix the stator winding. By filling the insulating material between the bevel edge of the stator coil and the supporting cylinder, good axial positioning support is provided for the coil in the hoisting, overturning and paint dipping processes of the stator, the movement amount of the coil in a stator iron core is reduced, the magnetic center of the motor is effectively ensured to be in an acceptable range, and the reliability of the motor is improved. And meanwhile, the influence of overlarge displacement of the coil on subsequent component installation is avoided, the linear section of the coil is tightened and fixed by adopting insulating paper and a binding belt, so that the coil is prevented from expanding and deforming in a paint dipping heating process, and enough discharge distance between the coil and a support piece of the engine base is ensured.

The invention relates to the technical field of automobile part machining, in particular to a rapid demolding mold for automobile part stamping, which comprises a lower mold base and an upper mold base arranged right above the lower mold base, a stamping cavity is arranged in the lower mold base, and a stamping auxiliary assembly is arranged in the stamping cavity. A demolding auxiliary assembly is arranged on the surface of the upper mold block. The demolding conditions of different types of automobile parts can be more flexibly treated through cooperative demolding force in the vertical direction, the demolding resistance can be more effectively overcome by adjusting the thrust of the second micro electric cylinder and the stroke of the ejector plate, it is ensured that the parts are smoothly demolded, and the demolding efficiency is improved. The downward pushing action of the ejector plate can prevent the punch forming part from being clamped in the mold due to top residual adsorption force or friction force in the later demolding period, it is guaranteed that the punch forming part can be completely separated from the mold, the demolding integrity and success rate are improved, the rejection rate caused by incomplete demolding is reduced, and the product quality is improved. And the production efficiency and the product quality are improved.

The application provides a plastic container injection molding equipment and belongs to the technical field of injection molding equipment. The injection molding equipment comprises a main body and a fixed mold assembly. The fixed mold assembly is fixedly connected to the top of the main body. The top of the main body is fixedly connected with a fixed plate. The injection molding equipment further comprises a demolding mechanism. The injection molding equipment can apply a short-distance pushing force to the plastic container on the movable mold assembly multiple times during the process that the movable mold assembly separates from the fixed mold assembly and moves to the fixed top plate. The surface adsorption force between the plastic container and the mold block on the movable mold assembly is gradually reduced. After the demolding pushing column and the inner wall of the piston pushing cylinder abut, the piston pushing cylinder and the dispersion gas box are directly pushed out of the embedded hole, so that the length of the piston pushing cylinder protruding on the protruding mold block of the movable mold assembly is not too long. The phenomenon that the just-formed plastic container is directly pushed to separate from the mold block on the movable mold assembly and thus the just-formed plastic container is poked or broken is avoided. The production qualification rate and the production efficiency of the product are improved.

The utility model discloses a portable wheat single plant bagging pollination auxiliary device, including the pollination cover of ground insertion, pollination cover inside inserts the wheat of pollination, pollination cover one side is provided with the recess, recess inside fixedly has the mark card, pollination cover top side fixedly connected with the fixing frame, and the vibration block is vibratedly connected to the inboard of fixing frame, and pollination cover top and bottom all are provided with the opening, and the upper sealing piece is fixedly connected to pollination cover top opening inner wall, two groups are provided with the upper sealing piece, and the upper sealing piece is the sector structure, the opening inside inserts the collection powder hopper, the collection powder hopper is funnel shape structure, and the collection powder hopper bottom opening corresponds with the position of the wheat column head of pollination, and the upper sealing piece one end bending is pasted in the collection powder hopper outer wall, and the collection powder hopper top is provided with the bundle mouth, and the lower sealing piece is provided to pollination cover bottom opening inner wall. The device can improve the effect of pollen release, thereby guaranteeing the pollination effect, and reducing the frequency of pollination.

The utility model relates to the technical field of blast furnace ironmaking production, and discloses a chain belt atomization cooling device which comprises a cooling assembly, a chain belt atomization cooling assembly and a chain belt atomization cooling assembly, the cooling assembly comprises a cooling water pipeline and a compressed air pipeline, the compressed air pipeline is connected with the water inlet end of the cooling water pipeline, and a plurality of sprayers are installed on the cooling water pipeline; the height adjusting assembly comprises a supporting bottom plate, installation vertical plates and an adjusting plate, the two installation vertical plates are fixed to the supporting bottom plate, long adjusting grooves are formed in the installation vertical plates in the height direction of the installation vertical plates, adjusting bolts are installed in the long adjusting grooves, and the adjusting plate is fixed to the installation vertical plates through the adjusting bolts; the angle adjusting assembly comprises annular clamping plates fixed to the adjusting plate, the circumferential threads of the annular clamping plates are connected with puller bolts, and the cooling water pipeline is rotatably installed in the two annular clamping plates.

A polyester resin composition is disclosed, comprising polybutylene terephthalate resin (A) and polyethylene terephthalate resin (B), wherein the amount of terminal hydroxyl groups of the aforementioned polybutylene terephthalate resin (A) is 30-70 mmol / kg relative to the total amount of the aforementioned polybutylene terephthalate resin (A) and the aforementioned polyethylene terephthalate resin (B).

The invention discloses a preparation method of graphene nano copper yttrium oxide composite powder, and relates to the technical field of photocatalytic wastewater treatment and new materials. The preparation method comprises the following steps: adding absolute ethyl alcohol and starch into ultrapure water, uniformly stirring, adding graphene, performing ultrasonic dispersion, adding urea, a copper sulfate solution and a yttrium nitrate solution, and uniformly stirring to obtain a mixed solution; adding the mixed solution into a supercritical reaction device, setting a heating program, preserving heat, cooling to room temperature, taking out a reactant, centrifuging, filtering, washing and drying to obtain the graphene nano copper oxide composite powder. Nano copper oxide and nano yttrium oxide are uniformly intercalated and distributed in pores and the surface of redox graphene, the yttrium oxide increases the active surface area of copper oxide, excitons are effectively generated in a metal oxide system, the photocatalytic activity of the graphene nano copper oxide yttrium composite powder is remarkably improved, and the graphene nano copper oxide yttrium composite powder has a wide prospect in the aspect of treating organic wastewater.

The present invention relates to the field of metal casting equipment, and discloses a die-casting molding equipment for metal blank processing, comprising: a die-casting frame; a base arranged on the die-casting frame, and a top plate arranged on the die-casting frame; a lower mold arranged on the base, and an upper mold arranged on the top plate, and cavities are opened on the upper mold and the lower mold; by setting a first coating plate and a second coating plate, and combining the precise control of a moving part, a release agent can be evenly coated on the side wall of the mold cavity, ensuring that the entire cavity surface is fully covered. Even when the shape of the mold cavity changes, the coating part can still accurately spray the release agent, further improving the demoulding effect and reducing surface defects caused by poor demoulding.