3628 results about "Release agent" patented technology

The invention relates to the technical field of die-casting dies, and discloses an aluminum die-casting die for a multi-surface thin-wall deep-cavity workpiece, which comprises a workbench, a transposition roller, a support arm and a positioning shaft. The driving motor drives the position changing roller to rotate reversely, the spiral extrusion groove in the position changing roller drives the whole synchronous support to move outwards, the extrusion plate provided with the first mold is pulled to be separated from the second mold, and the purpose of mold separation is achieved; at the moment, an ejector rod and an ejector block on the side wall of the first mold and the side wall of the extrusion plate are in mutual extrusion contact, then the ejector rod can move in the opposite direction, an internal workpiece is ejected out, the demolding purpose is achieved, after demolding is completed, a notch in a transposition roller automatically drives a spray head to move, and a demolding agent is evenly sprayed to a mold core; and the mold is more convenient to use, more reliable to operate and suitable for being widely popularized and used.

The invention discloses rapid die casting equipment for aluminum alloy die castings, and relates to the technical field of metal die casting. A first channel is formed in a die plate and an ejector rod, and a spray hole communicating with the first channel is formed in the ejector rod; according to the device, the mold release agent can be sprayed to the relatively-closed die-casting cavity in a mold closing state, the comprehensive uniformity of the mold release agent during adhesion is improved, the demolding effect after a die casting is formed is improved, the mold release agent is sprayed in the relatively-closed die-casting cavity, and the mold release effect is improved. According to the die-casting mold core, the release agent can be prevented from escaping outwards, the surrounding environment can be protected easily, waste of the release agent can be avoided, energy-saving, environment-friendly, green and efficient die-casting production is achieved, meanwhile, the spraying holes are formed in the cylindrical face of the end of the ejector rod, the spraying holes cannot be exposed when the ejector rod retracts into the die core, and the die-casting mold core is more environment-friendly. And interference to die-casting production due to the fact that the spraying holes are exposed in the die-casting cavity can be avoided.

The invention discloses a step die-casting machining die and a using method, and relates to the technical field of die-casting machining. The die-casting machine comprises a die-casting machine body, a step machining mold is stably installed on the die-casting machine body through a high-precision hydraulic clamping device, an air injection demolding assembly used for assisting demolding is integrated in the step machining mold, and a lifting mechanism is carried at the top end of the die-casting machine body through a fixing support; the driving end of the lifting mechanism is connected with a surface spraying assembly, and an inner side spraying assembly used for evenly spraying special parts of the step triangular support is arranged in the surface spraying assembly. By arranging the inner side spraying assembly, refined spraying of a release agent can be accurately achieved along the track of a special part of a complex structure such as a stair triangular support, meanwhile, the flow speed of the release agent is increased through the necking design of a connecting pipe, and by matching with the rotary spraying function of an atomizing nozzle, the spraying efficiency is improved. The problem that special parts are difficult to touch in traditional spraying is effectively solved, and the spraying uniformity of the release agent is remarkably improved.

The invention relates to the technical field of epoxy molding compounds, in particular to a low-shrinkage and high-heat-resistance epoxy molding compound and a preparation method thereof. The low-shrinkage and high-heat-resistance epoxy molding compound is prepared from the following raw materials in parts by weight: 6 to 8 parts of epoxy resin, 3 to 7 parts of phenolic resin, 80 to 90 parts of filler, 0.6 to 1 part of modifier, 0.1 to 0.5 part of accelerant, 0.2 to 0.4 part of coupling agent, 0.3 to 0.8 part of flexibilizer, 0.2 to 0.4 part of release agent, 0.2 to 0.4 part of coloring agent and 0.3 to 0.5 part of flame retardant, the modifier is a mixture of 1-phenyl-5-mercaptotetrazole and 5-aminotetrazole according to a weight ratio of 5: (1 to 5); the prepared epoxy molding compound has the characteristics of low shrinkage and high heat resistance.

The invention provides a preparation method of a ceramic core for titanium alloy graphite mold casting. The preparation method comprises the following steps: step 1, designing a wood mold; step 2, wood pattern mold processing; thirdly, paint spraying is conducted on the wood pattern mold; fourthly, a release agent is sprayed to the wood mold; step 5, forming a wood module and sealing wax; sixthly, grouting and sand spraying are conducted on the working face of the wood pattern mold to prepare a contact face layer and a reinforcing layer; step 7, demolding; and step 8, roasting. The wood mold is adopted as the mold, the wood mold has the advantages of being low in preparation cost, reusable, certain in strength and the like, the production efficiency can be improved when multiple pairs of wood molds are used at the same time, and the precision of the ceramic mold core is ensured due to the fact that the wood mold does not deform due to gravity and self-weight and avoids shrinkage deformation. The core cleaning efficiency of the prepared ceramic core is improved, cold shut and flow marks of a casting after core removal can be obviously improved, the surface roughness reaches Ra6.3 microns, and the requirement for titanium alloy precision casting can be met.

The invention discloses a carbon fiber composite material sound barrier forming device, and relates to the technical field of sound barrier forming, the carbon fiber composite material sound barrier forming device comprises a working bottom table and a first supporting column, the first supporting column is fixedly connected to the top surface of the working bottom table, an upper mold is installed on the lower surface of the top end of the first supporting column, a sound insulation barrier is arranged on the working bottom table, and an auxiliary assembly is arranged on the working bottom table; production and forming of the carbon fiber composite material sound barrier are divided into simultaneous operation of four stations with coherent processes, the four stations do not interfere with one another during operation, and the problems that in the traditional hot press forming process, equipment is in an idle state during cooling, demolding and other steps, four stations are adopted for simultaneous operation, and when one station is used for cooling and demolding, the equipment is not in an idle state are solved. Other stations can be used for machining, residue removal or release agent spraying, feeding and other operations, the equipment utilization rate is greatly improved, no obvious intermittency exists in the production process, and therefore more carbon fiber composite material sound barriers can be produced in unit time.

The invention discloses high-strength concrete and a preparation method thereof in the field of concrete. The high-strength concrete is prepared from the following raw materials in parts by weight: superfine sulphoaluminate cement; coarse aggregate; quartz sand; silica fume; coal ash; nano metakaolin; silicon carbide whiskers; a graphene oxide; a pH responsive microcapsule; coating the steel fibers with liquid metal; a carbon nanotube; and a polycarboxylic acid water reducer. Release of the repairing agent is accurately regulated and controlled by adopting the pH response microcapsule, the interface performance is enhanced by combining with the liquid metal coating steel fiber, and the composite dispersion process of the nano material is optimized. Wherein the environment response efficiency of the microcapsule is remarkably improved through the collaborative design of a calcium oxide-slow release agent system and a methyl methacrylate / acrylic acid copolymerization shell layer; according to the gallium-based liquid metal coating, metallurgical bonding of fibers and a matrix is achieved through the low-melting-point characteristic, and traditional physical bonding limitation is broken through.

The invention relates to the field of heat transfer films, in particular to a single-sided water-based environment-friendly pyrograph film and a preparation process thereof. The water-based release film sequentially comprises an ink absorption layer, a water-based release layer and a base layer from the upper surface to the lower surface, the water-based release layer is obtained by curing a water-based release agent, and the water-based release agent is prepared from the following raw materials in percentage by weight: modified water-based acrylate, deionized water, a cross-linking agent, a defoaming agent and modified polyurethane; the modified water-based acrylate is prepared from alkenyl siloxane, hydrogen-containing polysiloxane, phenyl hydroxyl reticular silicon resin, a bonding aid, a surfactant and water; according to the scheme, the obtained water-based release layer is stably adhered to the base layer, the ink absorption layer can be rapidly separated from the water-based release layer during heat transfer printing, and the transfer printing efficiency and the transfer printing quality are improved.

The invention relates to a Fenton-like functional filler which is prepared from 10-20% of iron particles coated with a carbonized film, 10-20% of aluminum sulfate modified straw, 20-30% of PBAT-coated calcium peroxide, 20-30% of diatomite and 10-30% of an adhesive. A processing method of a Fenton-like functional filler comprises the following steps: uniformly mixing iron particles coated with a carbonized film, aluminum sulfate modified straws, PBAT-coated calcium peroxide and diatomite, then adding an adhesive, mixing isocyanate serving as the adhesive with polyol according to a volume ratio of 1: 5, and continuously and uniformly mixing; then the mixed raw materials are injected into a mold coated with a release agent in advance, the mold temperature ranges from 40 DEG C to 60 DEG C, the foaming curing time ranges from 15 min to 20 min, and the Fenton-like functional filler can be obtained. The invention relates to an application of a Fenton-like functional filler in constructed wetlands. The method has the beneficial effects that the method is not influenced by temperature, and the removal effect of the constructed wetland on nitrate nitrogen and refractory COD (Chemical Oxygen Demand) can be obviously enhanced.

The invention relates to the field of epoxy molding compounds, and discloses an epoxy molding compound as well as a preparation method and application thereof. The epoxy molding compound contains a heat-conducting filler, epoxy resin, a curing agent, a curing accelerator, a coupling agent, a bonding modifier, a flame retardant, a coloring agent, a release agent, hydroxyl-terminated silicone oil and a dispersing wetting agent. The heat-conducting filler contains aluminum oxide, crystalline silicon dioxide powder and molten spherical silicon dioxide powder; the bonding modifier is a triazole compound or a gallic acid compound; the weight ratio of the hydroxyl-terminated silicone oil to the heat-conducting filler to the bonding modifier is (1.5-4): (700-800): 1. The epoxy molding compound has the advantages of favorable molding process property, excellent heat-conducting property and high adhesive strength, and is suitable for being used as a packaging material of a fully-packaged power module.

The invention discloses a flame-retardant PMMA (polymethyl methacrylate) plate and a preparation method thereof, and belongs to the technical field of acrylic plates. Comprising the following raw materials in parts by weight: 70-80 parts of methyl methacrylate, 8-12 parts of methyl acrylate, 5-15 parts of a synergistic flame retardant, 10-18 parts of modified nano silicon dioxide, 0.2-0.4 part of an initiator and 3-5 parts of a release agent. Wherein the modified nano silicon dioxide is high in surface hydrophobicity and better in compatibility with a PMMA matrix, so that the wear resistance and the mechanical property of the PMMA plate are greatly enhanced; wherein the synergistic flame retardant can enhance the mechanical property of the PMMA plate, in addition, molecules contain three elements of silicon, nitrogen and phosphorus, and the three elements can achieve a synergistic effect, so that the flame retardance of the plate is remarkably improved, and the stability is good; therefore, the PMMA plate prepared by the invention is good in wear resistance and excellent in mechanical property, also has stable and efficient flame retardance, and has important application value in the technical field of acrylic plates.

The invention relates to the technical field of pump body casting, in particular to an engine pump body production casting forming device which comprises a placing plate, a fixed mold module is installed on the left side of the upper end of the placing plate, and a movable mold module is installed on the right side of the upper end of the placing plate; the material taking device further comprises a material taking unit, the material taking unit is connected to the upper end of the containing plate, and the material taking unit comprises a mechanical arm module installed at the upper end of the containing plate. The supporting assembly, the air injection unit and the external cooling unit are matched with one another, surface cleaning can be conducted on the fixed mold module, the movable mold module and the engine pump body at the same time in the process that the engine pump body is taken out, and cooling treatment can be conducted on the engine pump body from the interior and the exterior; and a release agent can be sprayed after the surfaces of the fixed mold module and the movable mold module are cleaned, so that the continuous forming efficiency of the engine pump body is improved, and the energy consumption is reduced.

The invention discloses a metal soft magnetic powder core and a preparation method thereof.The preparation method comprises the steps that cold sintering is conducted, under the ultrasonic-assisted condition, warm-pressing is conducted on mixed powder containing modified iron powder and a release agent, and a metal soft magnetic powder core green body is obtained; wherein the modified iron powder comprises iron powder and a coating layer, the surface of the iron powder is coated with the coating layer, and the coating layer comprises copper, hydrated ferric oxalate, hydrated cupric oxalate and iron oxide; and heat treatment is conducted, specifically, the metal soft magnetic powder core green body is subjected to heat treatment under the oxygen-containing condition, and the metal soft magnetic powder core is obtained. Ultrasonic assistance is introduced when the modified iron powder is subjected to cold sintering, and a mixed insulation coating layer of ferric oxide and copper oxide can be generated on the surfaces of powder particles in situ during heat treatment, so that the compactness, the strength, the resistivity and the magnetic conductivity of the magnetic core are improved while the pressing force is reduced and the pressing efficiency is improved.

The invention discloses an integrated die-casting forming method for an aluminum alloy rear floor of a new energy automobile. The integrated die-casting forming method sequentially comprises the following steps that (1) aluminum alloy liquid is smelted and prepared; (2) the molten aluminum alloy is subjected to injection refining purification and refining modification; (3) mounting a die-casting die and preheating; (4) spraying a release agent and closing the mold; (5) casting and vacuum die-casting forming; (6) opening the mold and taking out the aluminum alloy rear floor blank; (7) a runner and a cinder ladle of the blank are cut off; and (8) the blank is polished and machined, and a finished aluminum alloy floor product is obtained. Integrated die-casting forming of the aluminum alloy rear floor of the new energy automobile is achieved, refining purification and refining modification are conducted on the aluminum alloy liquid, the vacuum die-casting forming technology is optimized, and the mechanical property, quality stability and the product percent of pass of the aluminum alloy rear floor are improved.

The invention discloses a plastic forming device and a plastic forming method.The plastic forming device comprises a device base, a fixed mold, a movable mold and an injection molding mechanism, the fixed mold and the movable mold are closed to form a forming cavity, an injection molding pipeline A is arranged on the side, away from the movable mold, of the fixed mold, and an adding mechanism is arranged in the fixed mold and comprises a sealing material box, a release agent pipeline and a material supplementing material box; and the injection molding mechanism comprises an injection molding pipeline B, mold locking mechanisms are symmetrically arranged outside the device base, each mold locking mechanism comprises a locking block, and a fixed mold ejector rod set and a movable mold ejector rod set are arranged in the fixed mold and the movable mold correspondingly. A release agent can be automatically added into the forming cavity before injection molding, so that the demolding resistance is reduced, and workpiece damage caused by subsequent demolding is avoided; the two locking blocks can be locked on the outer side of the movable mold in the mold closing state in a sliding mode, so that the phenomenon that flashes are generated on a product due to seam expansion of the mold in the mold closing state is avoided, and automatic demolding can be conducted in the mold opening process.

The invention discloses a preparation method and application of a heat-resistant halogen-free flame-retardant modified polycarbonate film, and belongs to the technical field of polycarbonate films. Comprising the following raw materials in parts by weight: 80-97 parts of a polycarbonate raw material, 0.05-2 parts of a dispersing agent, 0.3-0.6 part of a sulfonate flame retardant, 0.5-2 parts of an organic silicon flame retardant, 0.2-0.5 part of an anti-dripping agent, 0.05-0.2 part of a dispersing agent, 0.1-1 part of a release agent, 0.05-1 part of an antioxidant and 1-4 parts of black masterbatch. Wherein the dispersing agent and the release agent can improve the processing stability and film forming; the antioxidant can play a synergistic role, so that the oxidation resistance of the film is improved; the black master batch ensures that the film product is lightproof; the organic silicon flame retardant can improve the heat resistance and mechanical property of the film, can play a synergistic role with the sulfonate flame retardant and the anti-dripping agent, enhances the flame retardant property of the film, is stable in performance and not prone to falling off, and has application value in the new energy battery and energy storage industry.

The invention discloses an anti-white-top cosmetic container mold capable of pneumatically assisting negative-angle demolding, and relates to the technical field of cosmetic container molds, the anti-white-top cosmetic container mold comprises a bearing base and a lifting top plate arranged above the bearing base; wherein a lower die body is arranged above the bearing base, and an upper die body is arranged below the lifting top plate; a demolding mechanism is arranged in the lower mold body, and the demolding mechanism comprises main forming mold sleeves which are arranged at equal intervals; a pneumatic mechanism is arranged in the bottom face of the upper die body and comprises auxiliary forming die sleeves arranged at equal intervals. According to the top whitening prevention cosmetic container mold capable of pneumatically assisting negative-angle demolding, the main forming mold sleeve and the auxiliary forming mold sleeve are mutually combined for injection molding, the demolding top disc descends, a demolding agent is coated, the demolding top disc is opened through a demolding air hole of the exhaust outer barrel during separation, and the contact area between the demolding top disc and a cosmetic container is increased while pneumatic demolding is assisted; the pressure intensity is reduced to prevent white top and assist the dressing case to come off.

The invention provides ceramic silicone rubber as well as a preparation method and application thereof, and belongs to the technical field of functional materials. The ceramic silicone rubber provided by the invention is prepared from the following preparation raw materials in parts by mass: 90-105 parts of methyl vinyl silicone rubber; 35 to 45 parts of fumed silica; 3-10 parts of hydroxyl silicone oil; 0.1 to 8 parts of a silane coupling agent; 1-75 parts of an inorganic filler; the inorganic filler is mica powder, montmorillonite and wollastonite; 10-30 parts of low-melting-point glass powder, the melting point of the low-melting-point glass powder is 400-600 DEG C, and the low-melting-point glass powder is borate glass powder and / or phosphate glass powder; 0.1 to 0.3 part of platinum flame retardant; 0.5 to 1.5 parts of a vulcanizing agent; and 0.1-0.5 part of an internal release agent. The ceramic silicone rubber provided by the invention can maintain higher tensile strength and elongation at break on the basis of ensuring better ceramic performance.

The injection molding device for plastic product manufacturing comprises a base, and a top frame is arranged at the top of the base. After the lifting mechanism controls the upper mold to descend and be combined with the lower mold, the upper mold and the lower mold continue to press downwards, so that the upper mold and the lower mold integrally overcome the elastic force of the first spring to move downwards, the piston rod drives the piston to move relatively upwards in the piston groove, and the hydraulic pressure in the piston groove and the release agent groove is increased; the mold release agent pushes the telescopic rod to overcome the elastic force of the second spring to move upwards, the telescopic rod drives the atomizing spray head to stretch into the cavity, meanwhile, the mold release agent with increased hydraulic pressure is sprayed out through the atomizing spray head, the atomizing spray head retracts into the mold release agent groove again through the second spring while spraying liquid, and in the mold closing process, the mold release agent can be sprayed out through the second spring. The atomized release agent is automatically sprayed into the cavity, the situation that mold closing is conducted after the release agent is sprayed is avoided, mold closing and spraying of the atomized release agent are conducted synchronously, and then the working efficiency of the injection molding device is effectively improved.

According to the forming mold for preparing the sealing ring in the field of injection molds, through a pair of mold discs arranged on the outer side of a left mold cylinder and the outer side of a right mold core and spraying assemblies arranged in the mold discs and capable of stretching into an annular mold cavity, when a release agent is sprayed, a rotating mechanism drives the mold discs to rotate; according to the mold, the injection pipe does composite movement of transverse movement and circular movement through the rotation of the left mold cylinder and the right mold core, the release agent is uniformly sprayed to the inner wall of the annular mold cavity, meanwhile, the release agent on the inner wall of the annular mold cavity is uniformly spread on the inner wall of the annular mold cavity under the action of centrifugal force through the rotation of the left mold cylinder and the right mold core, and the distribution uniformity of the release agent is further improved; and besides, during demolding operation, the injection pipe synchronously rotates and extrudes the two sides of the sealing ring blank in the annular mold cavity, so that rotary stripping of the sealing ring blank is achieved, the conditions of adhesion and damage of the sealing ring blank are reduced, and the demolding quality is improved.

The invention belongs to the field of polymer modification and processing, and particularly relates to a nano photocatalytic self-cleaning composite material, a fresh-keeping cover and a preparation method of the fresh-keeping cover. The composite material comprises aliphatic nylon, a maleic anhydride grafted copolymer, nano titanium dioxide, carbon nanotubes, boron nitride, a coupling agent, a release agent and an antioxidant. The nano photocatalytic self-cleaning composite material is prepared by taking nano titanium dioxide as an antibacterial active agent and adding a certain amount of carbon nanotubes and boron nitride powder. The carbon nanotubes can conduct electrons, have high surface area and high adsorption capacity, and are good dopants and carriers for titanium dioxide as photocatalysts. Hexagonal boron nitride can effectively improve separation and transfer of photo-induced electron-hole pairs of the material, so that the visible light response photocatalytic activity is enhanced. And by adding the carbon nanotubes and boron nitride, the dispersing performance of nano titanium dioxide can be physically improved, titanium dioxide agglomeration is prevented, and the photocatalytic self-cleaning performance of the nano titanium dioxide is improved.

The invention relates to the technical field of measuring devices, in particular to a three-dimensional laser measuring device based on motor detection. Comprising a rack and a microcontroller, and further comprises a moving frame, an electric rotary table and two mold pouring boxes are installed on the moving frame, a to-be-tested motor is arranged on the electric rotary table, an electric heater and a refrigeration module are installed on each mold pouring box, a cavity is formed in each mold pouring box, a turnover frame driven by a turnover motor is installed on a multi-axis mechanical arm, and the turnover frame is provided with a motor. The overturning frame is provided with an overturning clamp for overturning a motor to be tested, the multi-axis mechanical arm is provided with a reflective liquid storage box and a release agent storage box, the reflective liquid storage box and the release agent storage box are both provided with pump bodies, the liquid outlet ends of the two pump bodies are both communicated with spray heads through corrugated connecting pipes, and the two spray heads are both installed on the overturning frame. The beneficial effects of the invention are that through triple data fusion, silicone rubber reverse mold cyclic regeneration and full-process automatic integration, high-precision measurement of the to-be-measured motor during three-dimensional scanning is realized.

The invention relates to the technical field of die-casting devices, in particular to a die-casting device and a die-casting method for a high-toughness light-weight aluminum alloy structural member. The upper die, the lower die and the metal tank filled with molten metal are respectively arranged on the die-casting frame; the synchronous transmission mechanism is arranged in the die-casting frame and connected with the upper die, the lower die and the metal tank, and the synchronous transmission mechanism and the horizontal reciprocating conveying mechanism share the same motor for driving; the pretreatment mechanism comprises a heating frame, a release agent spraying frame and an air drying frame. The whole system is driven by one power source, the production cost is effectively reduced, the operation difficulty is reduced, the subsequent maintenance and control work becomes easier, the power source has high universality and easy replaceability due to the adoption of an electric driving mode, and the power source is suitable for large-scale popularization and application. And the maintenance efficiency and the availability of the equipment are greatly improved.

The invention belongs to the technical field of material processing, and discloses a magnesium alloy casting semi-solid injection molding method and application, and the method comprises the following steps: checking and adjusting a semi-solid injection machine, a casting mold and other equipment to be in a normal state, and placing magnesium alloy particles in a designated area of a hopper; putting a long nozzle of the semi-solid injection platform into the center of a mold sprue; setting the temperature of each section of a mold temperature controller, a charging barrel and a nozzle; preserving heat for a period of time after the temperature of the charging barrel reaches a set value, so that the temperature of materials in the charging barrel is uniform; setting the injection rate, the cooling time, the material return distance and the melt pressure of the semi-solid injection machine; and after a release agent is quantitatively sprayed to the mold, a semi-solid injection program is started, and a casting is obtained. The AS41B magnesium alloy particles with good heat resistance are adopted as the raw material, the semi-solid injection molding method is combined, a melting furnace is not needed, only heating to the semi-solid state is needed, the melt temperature is low, energy is saved, the service life of a mold is prolonged, protective gas is not needed, and the manufactured casting is good in mechanical property and high in heat resistance.

The invention relates to the technical field of spaceflight material forming, in particular to a tension control winding process of a spaceflight carbon fiber composite launch canister, which comprises pretreatment, winding forming, curing and post-treatment. The method comprises the following steps: S1, coating a release agent and a modified coating after processing a core mold, carrying out plasma treatment and eliminating stress; the carbon fiber filaments are soaked in resin containing nanometer components, and are pre-stretched after a hot melting reaction; s2, closed-loop tension control is conducted, winding is conducted according to segmented angles, and modified resin is coated between layers to be overlapped in a crossed mode; s3, stepwise heating and curing, dynamically regulating the pressure and introducing inert gas; and S4, polishing after hydraulic demolding, carrying out sand blasting, carrying out transition layer and ceramic coating, and carrying out multi-dimensional detection. According to the process, the mechanical property and environmental adaptability of the launch canister are improved, the process precision is high, defects are reduced, the forming time is shortened, the rework rate and cost are reduced, the spaceflight requirement is met, and the process is suitable for batch production.

The invention relates to the field of additives for concrete, and particularly discloses a high-performance mould-proof release agent for concrete and a preparation method of the high-performance mould-proof release agent. The high-performance mould-proof release agent for concrete comprises the following raw materials in parts by weight: 10-20 parts of dimethyl silicone oil, 10-20 parts of hydrogen-containing silicone oil, 4-8 parts of paraffin, 2-4 parts of an emulsifier, 1-4 parts of a mould inhibitor, 3-5 parts of a reinforcing component, 2-5 parts of a thickening agent and 30-50 parts of water, the emulsifier is prepared from the following raw materials in percentage by mass: 23.5 to 25 percent of Span-80, 21 to 23 percent of dodecyl benzene sulfonic acid triethanolamine salt and the balance of OP-10. The release agent has the advantages of being good in storage stability, not prone to deterioration and layering, good in release effect, long-acting in antibacterial property and capable of enabling concrete test blocks to be high in strength.

The invention belongs to the technical field of aluminum alloy die-casting devices, and particularly relates to an aluminum alloy die-casting device and a forming process thereof.The aluminum alloy die-casting device comprises a device body, a die-casting die, a spraying part used for spraying a release agent and an electric push rod used for controlling the spraying part to move, and further comprises a circulating assembly arranged at the top end of the device body; the collecting box is arranged under the spraying part, a separating plate is arranged in the collecting box, a containing groove is formed in the separating plate, and a push plate is installed at the top end of the separating plate in a sliding mode and used for pushing residual metal impurities at the top end of the separating plate into the containing groove. And a storage box is arranged on the separation plate, a conveying assembly is arranged in the storage groove and used for conveying metal impurities falling into the storage groove into the storage box, and through cooperative use of the structures, metal residues can be effectively recycled, and certain resources are saved.

The application belongs to the technical field of injection molding machines, and particularly relates to a vehicle lamp shell integrated injection molding and polishing mold and a variable temperature forming process, which comprises a front mold, a rear mold and a heating module. A forming cavity is formed in the rear mold. A spraying module is arranged in the cavity in a retractable manner. The spraying module is used for spraying a release agent to the inner wall of the cavity. The heating module is arranged in the rear mold. The heating module preheats the rear mold and evaporates the moisture of the release agent sprayed on the inner wall of the cavity. The mold further comprises a ejector pin module. The ejector pin module comprises an ejector pin plate and a plurality of ejector pins connected to the ejector pin plate. The plurality of ejector pins penetrate through the through holes on the rear mold and lead to the cavity. The spraying module is arranged on the front end side wall of the ejector pin. The spraying module sprays the release agent to the inner wall of the cavity when the spraying module retracts into the through hole along with the ejector pin. The mold can avoid the first injection material and the second injection material from being unable to be well bonded due to improper spraying of the release agent, and improve the stability of the injection molded product.

The invention discloses Pickering emulsion applied to concrete demolding and a preparation method thereof, and relates to the technical field of building materials. The Pickering emulsion is prepared from the following raw material components: 200 to 600 parts of base oil, 50 to 60 parts of a compound emulsifier, 50 to 60 parts of a co-emulsifier, 1 to 2 parts of a dispersed phase pour point depressing component, 0.5 to 1 part of an antioxidant, 8 to 10 parts of a continuous phase thixotropic stabilizing component, 10 to 15 parts of a color regulating agent and 500 to 550 parts of water. The Pickering emulsion has excellent concrete demoulding performance, also has concrete self-curing performance and anti-ultraviolet performance, and can effectively improve the structural strength of concrete, prolong the service life of concrete and ensure the appearance quality of concrete. The problems existing in a traditional release agent are solved, additional functionality and attractiveness are provided for concrete products, and the release agent is suitable for various building and infrastructure projects and has wide application prospects.

The invention relates to the technical field of preparation of heat transfer films, in particular to a preparation process of a UV process heat transfer film, which comprises the following steps: base film selection, base film surface treatment, release agent selection, release agent coating, UV paint coating, bridging agent selection, printing, photocuring and film stripping: stripping the photocured transfer film from the base film to form the final UV heat transfer film. According to the UV heat transfer film prepared by the process, the adhesive force of the pattern layer and the UV coating layer is better, the compactness is higher, the product quality is improved, and the service life of the UV heat transfer film is prolonged; in addition, the efficiency is improved more quickly during curing, the residual adhesive rate is low after demolding and stripping, and the product quality is further improved.