392 results about "Liquid silicon" patented technology

The preparation method of the silicon-carbon composite material comprises the following steps: uniformly mixing a carbon source, a pore forming agent and a cross-linking agent, and introducing peroxide gas into a tubular furnace for sintering to obtain porous carbon; uniformly mixing the porous carbon with liquid silane and a surfactant, and transferring the mixture into a high-pressure reaction kettle for reaction to obtain a silicon-carbon precursor; and introducing the obtained material into a carbon source gas containing a heteroatom gas for deposition to obtain the silicon-carbon composite material. The obtained material generates porous carbon with high strength and high pore volume by utilizing the cross-linking agent and the pore-forming agent thereof, so that the expansion is reduced; and the liquid silane has the characteristics of low decomposition temperature, low cost and high safety performance, so that the specific capacity is improved, and the cost is reduced.

The utility model discloses a liquid silica gel feeder with 1: 1 feeding, which comprises a bottom frame, a control box, a first lifting driving mechanism, a first hydraulic feeding mechanism, a second lifting driving mechanism, a second hydraulic feeding mechanism, a feeding mixer, a pressure stabilizing valve and a switch valve, and is reasonable in structural design and small in size, and the occupied space is saved; the first lifting driving mechanism and the second lifting driving mechanism can drive the first hydraulic feeding mechanism and the second hydraulic feeding mechanism to synchronously ascend and descend correspondingly, and the first hydraulic feeding mechanism and the second hydraulic feeding mechanism can inject liquid silica gel in the two material barrels into the feeding mixer according to the proportion of 1: 1. And finally, the switch valve is opened to inject the liquid silica gel into various molding equipment such as an injection molding machine, the operation is stable and reliable, the matching error is small, and the operation is convenient.

The invention discloses a material flow rate control method and system for liquid silica gel injection molding, and the method comprises the following steps: S1, collecting temperature gradient distribution in an injection mold, silica gel initial viscosity and pressure intensity data in a mold cavity in real time through a multi-mode sensor network, and inputting the data into a pre-molding parameter model; s2, based on the pre-forming parameter model; s3, outputting a result according to the dynamic response equation; and S4, dynamically calibrating the regulation and control parameter set through a fuzzy neural network in combination with a closed-loop feedback mechanism, and driving an execution mechanism to adjust the silica gel injection rate based on the calibrated parameters. The industrial bottleneck of liquid silica gel injection molding flow rate control is systematically solved; the cooperative construction of the multi-modal sensing network and the multi-field coupling model breaks through the physical limitation of a traditional empirical formula, and realizes the improvement of the dynamic response precision under a complex working condition.

The invention relates to the technical field of stirring devices, and discloses a silica gel product production raw material stirring device which comprises a tank body, a motor and a hydraulic cylinder which are fixedly arranged at the top of the tank body, a push disc slidably mounted in the tank body and a stirring assembly arranged in the tank body, and the outer circumferential wall of the push disc is attached to the inner circumferential wall of the tank body; the stirring assembly comprises a stirring shaft and a stirring rod, the top end of the stirring shaft is fixedly connected with the output end of the motor, a through groove is formed in the middle of the stirring shaft, the stirring rod is rotationally installed in the through groove, and an adjusting assembly used for driving the stirring rod to rotate and retract into the through groove is arranged in the stirring shaft; through the design that the hydraulic cylinder drives the push disc to move downwards to be matched with the rotatable and retractable stirring rod structure, the discharging efficiency of liquid silica gel is remarkably improved, and residual materials attached to the inner wall of the tank body and the surface of the stirring assembly are effectively scraped off by means of the tight attachment characteristic of the push disc, the inner wall of the tank body and the stirring shaft; and raw material loss and pollution risks caused by residues are avoided.

The invention discloses a double-lithium compound coated silicon-carbon composite material and a preparation method thereof, the composite material has a core-shell structure, the core is passivated silicon carbon, the shell is composed of a first shell layer and a second shell layer, the first shell layer is an inorganic lithium compound, and the second shell layer is an organic lithium coating layer. The preparation method comprises the following steps: adding liquid silane and porous carbon into an organic solvent, and gasifying and decomposing under negative pressure to obtain a silicon-carbon precursor material; and then coating an inorganic lithium compound on the surface through a liquid phase method, drying, adding the obtained material, uniformly mixing with an organic lithium compound, and carrying out spray drying to obtain the lithium ion battery positive electrode material. The obtained material is applied to a lithium ion battery, can improve the cycle performance, and is high in safety and low in cost.

The invention belongs to the field of silica gel foam, and particularly relates to liquid silica gel foam with lasting and rapid rebound resilience after hot pressing. According to the liquid silica gel foam with lasting and rapid resilience after hot pressing, vinyl silicone oil with different viscosities is compounded, a proper amount of polyvinylsilicone oil is added, and the proportion of the vinyl silicone oil, the mixed hydroxyl silicone oil and the mixed hydrogen-containing silicone oil is regulated and controlled, so that the elasticity of the foam is improved; the liquid silica gel foam which is excellent in buffering performance and capable of rapidly rebounding and has no obvious damage on the surface after being subjected to hot pressing for multiple times at high temperature and high pressure is prepared according to the adding amount of the functional filler and the proportion of the fillers. When the liquid silica gel foam is used as a circuit board buffer material, scratches caused by hard contact between a heating plate and a laminated plate can be effectively avoided, and the service life of the heating plate and the service life of the laminated plate are prolonged.

The utility model discloses a liquid silica gel mold cold runner mechanism which comprises a flow guide plate for shunting liquid silica gel and a runner on the flow guide plate, the runner is distributed in an I shape, the middle section of the runner is provided with a gel inlet penetrating through the flow guide plate, and cooling structures are arranged at the end points of the runner. The top of the cooling structure is provided with a glue outlet, the glue outlet is communicated with the end point of the runner, and liquid silica gel flows in from the glue inlet, is shunted by the runner, passes through the cooling structure and then is ejected out from the glue outlet in the top of the cooling structure. The I-shaped runner design effectively improves the liquidity of the liquid silica gel and ensures the uniformity of product quality, and the silica gel inlet is directly connected with the middle section of the runner, so that the inflow speed of the liquid silica gel is increased, the forming period is shortened, and the production efficiency is improved. And due to the arrangement of the cooling structure, the liquid silica gel reaches a proper temperature before being ejected, silica gel curing is prevented, and the product quality is further guaranteed.

The invention provides a 1500-DEG C thermal shock and oxidation resistant plasma spraying method for a Si coating on the surface of graphite, coating graphite and application. The method comprises the following steps that the to-be-sprayed surface of a graphite matrix is pretreated; spraying the to-be-sprayed surface by adopting a plasma spraying technology to obtain a Si coating on the to-be-sprayed surface; carrying out heat treatment on the graphite matrix with the Si coating in a vacuum environment by adopting a vacuum heat treatment technology, so that part of solid silicon in the Si coating is molten into liquid silicon or silicon steam, and the liquid silicon or silicon steam permeates into the graphite matrix containing air holes under the action of capillary tubes, so that part of liquid silicon or silicon steam and the graphite matrix are subjected to chemical reaction; and thus, the gradient transition Si / SiC coating is obtained through in-situ growth on the to-be-sprayed surface of the graphite matrix. According to the method provided by the invention, the problem that a traditional method for spraying the Si coating on the surface of the graphite in a plasma manner cannot be used in an environment of 1500 DEG C is solved.

The application belongs to the technical field of ceramics, and particularly relates to a preparation method of high-entropy boride-silicon carbide composite ceramics, which comprises the following steps: mixing high-entropy boride powder and carbon source powder, and then adopting a ceramic forming method to prepare a ceramic green body; embedding the ceramic green body with silicon powder, and performing liquid silicon infiltration treatment in a vacuum environment to obtain high-entropy boride-silicon carbide composite ceramics. The application mixes high-entropy boride and carbon source, and then performs liquid phase silicon infiltration, so that the process is simpler, the residual Si content is relatively less, and high-entropy boride-silicon carbide composite ceramics with a density of more than 99% can be obtained, which is suitable for large-scale production and application.

The invention relates to the technical field of silica gel injection molding temperature control, in particular to a temperature control system and process for liquid injection molding of a silica gel toy. The process comprises the following steps: S1, according to three-dimensional model data of a silica gel toy, automatically identifying geometric feature information of the silica gel toy; s2, setting initial temperature parameters of each injection molding stage on the basis of the geometrical characteristic information in combination with physical characteristics of the liquid silica gel; s3, in the injection period, based on the initial temperature parameters, micro-heating / mold temperature maintaining / micro-cooling is conducted on different areas of the silica gel toy; s4, in the pressure maintaining period, when the liquid silica gel is filled to the preset filling proportion, the mold temperature of the multicolor injection molding material flow interface area is reduced to the freezing temperature; s5, in the main vulcanization period, a self-adaptive temperature adjustment strategy is executed on the thick-wall area and the thin-wall area; and S6, in the cooling and demolding period, a corresponding rapid cooling strategy / slow cooling strategy is executed on the thick-wall area and the thin-wall area. The size stability and the assembly precision of the complex thin-wall silica gel component are remarkably improved.

The utility model provides a luminous organic silicon pad which comprises an organic silica gel layer, a base material layer and an anti-skid layer which are sequentially arranged from top to bottom, and the organic silica gel layer is formed by adding a luminous material into liquid silica gel. According to the utility model, the surface layer of the luminous organic silicon pad is made of the organic silica gel, so that the antifouling, hydrophobic, anti-skid and scratch-resistant properties of the luminous organic silicon pad can be improved, and the prepared organic silica gel layer can have the luminous property by adding the luminous material into the liquid silica gel, so that the luminous effect of the luminous organic silicon pad is improved. According to the invention, the discrimination of a user in a dark environment can be improved, and meanwhile, the use interestingness of the user can be improved.

The utility model discloses an industrial silicon vibration condensation forming device, which belongs to the technical field of industrial silicon production devices and comprises a connecting frame, a conveying frame arranged on the top of the connecting frame, vibration motors mounted on two sides of the conveying frame, a water spraying mechanism arranged on the top of the conveying frame, a guide mechanism arranged on the rear side of the conveying frame and a water receiving mechanism arranged on the front side of the conveying frame. A forming mechanism is installed on the conveying frame and comprises a plurality of rotating columns, gaskets are fixedly connected to the tops of the rotating columns, and graphite columns are fixedly connected to the gaskets. The device has the beneficial effects that the forming mechanism is arranged, a reciprocating lead screw and a moving block drive a translation frame body to do reciprocating translation motion, and a rocker drives a rotating column to do reciprocating swing, so that industrial silicon is subjected to the swing dispersion effect of a graphite column when flowing through a graphite column area, the industrial silicon dispersing and blocking effects are better, and the forming effect is improved; and the liquid silicon is more uniformly changed into independent blocky industrial silicon.

The utility model discloses a waterproof Fakra connector and a wire end connector. The waterproof Fakra connector comprises a wire end plastic shell, a plugging column is arranged in the wire end plastic shell, a first plugging cavity and a second plugging cavity are arranged in the plugging column, a first plugging part is arranged around the plugging column, a power supply female terminal is arranged in the first plugging cavity, and a connecting terminal is arranged in the second plugging cavity; the board end connector comprises a board end plastic shell and a second insertion part arranged in the board end plastic shell, and a power supply terminal pin and a connection terminal pin are arranged in the second insertion part; the end portion of the insertion column protrudes out of the front end face of the first insertion portion, and a liquid silica gel waterproof ring is arranged on the side face of the insertion column and located between the second insertion portion and the first insertion portion. According to the waterproof Fakra connector, the extension line end plastic shell is adopted, the liquid silica gel waterproof ring is additionally arranged, the extension board end plastic shell is matched with the liquid silica gel, and the waterproof function of the plug-in position is achieved; a plastic sleeve structure is added, assembling is carried out on the basis of an original conductor assembly, and the waterproof function of the wire end connector is further achieved.

The invention discloses a silicon capsule and a preparation method thereof as well as a preparation method of a continuous fiber toughened ceramic matrix composite material, and solves the problems that in a traditional melt siliconizing process, when the reaction temperature rises, due to direct contact between silicon powder and lower heat conductivity of liquid silicon, a remarkable temperature gradient is formed in the embedded silicon powder, and the heat conductivity of the silicon powder is reduced. The silicon powder melting process is not uniform due to the temperature difference; according to the preparation method, polyvinyl alcohol is taken through a water-soluble binder, carbon powder is uniformly wrapped on the surfaces of silicon particles, then the taken polyvinyl alcohol is removed at a high temperature, the carbon powder on the surfaces and the silicon particles react to form a SiC thin layer, and finally the silicon particles with the surfaces wrapped with the polyvinyl alcohol solution are cracked at the high temperature and uniformly permeate into a porous intermediate, so that the silicon-carbon composite material is obtained. And the infiltration uniformity of liquid silicon and the compactness of the material can be effectively improved, large-area silicon blocks formed when traditional silicon melt is cooled and damage to surface fibers of products in the processing and breaking process are reduced, and net size forming is achieved.

The invention relates to high-thermal-conductivity and high-modulus silicon carbide ceramic and a preparation method thereof. The preparation method of the high-thermal-conductivity and high-modulus silicon carbide ceramic comprises the following steps: (1) mixing silicon carbide raw material powder with a solvent for the first time, then adding a binder into the mixture, and mixing for the second time to obtain silicon carbide raw material mixed slurry; (2) molding the silicon carbide raw material mixed slurry into a biscuit, carrying out heating curing treatment, and carrying out debonding to obtain a silicon carbide ceramic green body; (3) performing recarburization dipping treatment on the silicon carbide ceramic green body, and performing debonding to obtain a recarburization dipped silicon carbide ceramic green body; and (4) carrying out liquid silicon permeation treatment on the recarburization impregnated silicon carbide ceramic green body to obtain the high-thermal-conductivity and high-modulus silicon carbide ceramic.

The utility model provides a liquid silica gel forming device, and belongs to the technical field of silica gel forming equipment. The problem that the production efficiency is affected due to the fact that silica gel in a runner is blocked by high temperature when existing liquid silica gel is formed is solved. The liquid silica gel forming device comprises a frame body, a gel storage tank, a mold and a heating table used for heating the mold, the mold comprises an upper mold body and a lower mold body, the upper mold body and the lower mold body are assembled to form a cavity, and a runner communicated with the cavity is formed in the upper mold body; the mold further comprises a lifting mechanism, the lifting mechanism is used for driving the heating table to lift up and down, the glue storage tank is located above the upper mold and used for injecting glue into the cavity through the runner under normal pressure, the lower mold is located below the upper mold and located on the heating table, and a heat insulation structure used for conducting heat insulation on the runner is arranged in the upper mold. The glue injection structure is simple, the cost is lower, the runner is prevented from being blocked during molding, the production operation is simple, and the efficiency is higher.

The invention discloses a fragmented silicon carbide crystal ingot repairing method which comprises the following steps: splicing a plurality of silicon carbide fragments to form an integral silicon carbide crystal ingot, promoting macroscopic crack opening healing by adopting a liquid phase induction healing process, and then filling microscopic pores around cracks by adopting an in-situ gas phase permeation process to realize crack repairing of the fragmented silicon carbide crystal ingot. According to the provided broken silicon carbide crystal ingot repairing method, a liquid phase induction healing process is adopted, liquid silicon and silicon carbide react to fill gaps, then cooling is performed to form new silicon carbide bonding, macroscopic crack openings are promoted to be closed, and then an in-situ gas phase permeation process is adopted to repair the broken silicon carbide crystal ingot. A chemical covalent network is constructed by depositing and permeating silicon carbide in micro pores by using a silicon source and a carbon source, so that crack repair of the silicon carbide crystal ingot is realized. According to the method, the broken crystal ingot is repaired through physical reconstruction and chemical bonding, and the mechanical and electrical properties of the broken crystal ingot are recovered.

The invention provides a high-temperature-resistant organic silicon insulating coating for a ZnO resistor disc as well as a preparation method and application of the high-temperature-resistant organic silicon insulating coating, and belongs to the field of insulating coatings. The organic silicon insulating paint comprises the following components: 60-90% of liquid silicon resin; 0-20% of a heat-resistant filler; 1 to 10% of a silane coupling agent; 1 to 10% of butyl titanate; and 3-10% of an adhesion promoter. A main chain structure in organic silicon molecules of the silicon resin is a Si-O bond formed by alternately connecting silicon (Si) and oxygen (O) atoms, and the bond has relatively high bond energy and good flexibility, so that a resin coating system has relatively good heat resistance and the like. The problems that existing organic and inorganic insulating coatings are poor in heat resistance, prone to corrosion when meeting water and the like can be solved, the provided insulating paint can be used for ZnO resistor discs with various diameters, the resistor discs are not limited to a cake shape and a ring shape, and the insulating paint is particularly well applied to the ZnO resistor discs with high voltage gradients.

The invention relates to the technical field of heat insulation and preservation plates, and discloses an aerogel heat preservation composite plate which comprises a first glass fiber gridding cloth layer, an aerogel felt layer and a second glass fiber gridding cloth layer which are sequentially arranged in a stacked mode. The first glass fiber gridding cloth layer, the aerogel felt layer and the second glass fiber gridding cloth layer are sewn and connected through sewing threads, and a preparation method of the aerogel felt layer comprises the steps that firstly, cerium oxide is modified and grafted with a silane coupling agent, then graphene oxide and the silane coupling agent modified cerium oxide are dispersed with water, and the aerogel felt layer is obtained. Adding a liquid silicon compound into the mixture, adding a base catalyst to obtain sol, adsorbing the sol by using a porous reinforcing material, and then aging and drying to obtain the composite material. The aerogel insulation board is high in tensile strength and good in insulation effect.

The utility model relates to an FPC (Flexible Printed Circuit) technology, and discloses a novel composite die structure for FPC bending shaping and silica gel extrusion forming, which comprises a forming lower die for limiting an FPC, a first upper die for pressing and shaping the FPC limited by the forming lower die, and a second upper die for injecting liquid silica gel to the FPC, the first upper die is provided with a forming pressing block, the end, close to the forming lower die, of the forming pressing block is provided with a wavy extrusion part, the forming lower die is provided with a wavy concave part matched with the extrusion part, and the multiple extrusion parts are used for extruding the FPC to form a wavy bent part on the FPC; the second upper die comprises a first upper plate and a material extruding plate movably arranged relative to the first upper plate, the first upper plate is provided with a liquid storage groove used for containing external liquid silica gel and a material extruding hole communicated with the liquid storage groove, and the material extruding plate is provided with a protruding part used in cooperation with the liquid storage groove; and the lug boss is used for extruding and injecting the liquid silica gel in the liquid storage tank onto the bending part of the FPC carried by the forming lower die through the material extruding hole.

The invention relates to the technical field of gluing pumps, and discloses a liquid silica gel injection machine and a using method, the injection machine comprises a base, a lifting rod, a hydraulic rod, a pressure plate, a connecting pipe, a three-way valve, a stirring part, a cleaning and scraping part and a squeezing and spraying part. A stirring part downwards pushes a trigger switch through a T-shaped ring, an electric rod is automatically started to push a motor and a glue stirring piece to extend into a glue barrel, a stirring plate and a glue disc rotate to stir liquid silica gel, and layering and local curing are prevented; the cleaning and scraping part is quickly inserted into a supporting rod through an inserting rod, a T-shaped ring is rotated to drive a rotating sleeve to rotate with a flange as the circle center, and a cotton brush and a scraping plate rotationally clean a pressing disc and the flange; and the extrusion spraying part extrudes the corrugated bag to enable the sol agent to be sprayed to a cleaning surface through the guide channel and the liquid channel, and cooperates with mechanical scraping for cooperative cleaning. The cleaning efficiency is improved, the residual silica gel rate is reduced, the equipment maintenance time is shortened, and the injection quality and the production efficiency are remarkably improved.

The application discloses a composite patch for promoting hair growth, a hair growth cap and a preparation method. The composite patch for promoting hair growth comprises the following raw materials in parts by weight: medical grade liquid silicone 40-60 parts, gelatin 20-35 parts, silane coupling agent 1-2 parts, far infrared ceramic powder 1-2 parts, tourmaline powder 1-2 parts, chisel stone powder 0.5-1.5 parts and neodymium-iron-boron magnetic powder 4-6 parts. The composite patch for promoting hair growth is prepared by selecting the raw materials, so that the composite patch has the functions of radiating far infrared, generating a micro electric field and a magnetic field and having weak negative electric characteristics at the interface to improve the directional migration of calcium ions, thereby achieving the purposes of improving the micro environment of hair follicles and promoting hair growth.

The utility model discloses a rapid prototyping liquid silica gel mould, which comprises a lower mould plate and an upper mould plate, a plurality of prototyping bosses are fixed on the upper surface of the lower mould plate, raised mould cores are fixed on the upper surfaces of the prototyping bosses close to the front side and the rear side, conical cylinders are uniformly distributed on the upper surfaces of the mould cores, and the lower mould plate is fixed on the lower mould plate. A first runner communicated with the area where the mold core is located is formed in the upper surface of the forming boss, a forming concave cavity matched with the forming boss is formed in the lower surface of the upper mold plate, a mold cavity matched with the mold core is formed in the top face of the inner side of the forming concave cavity, and a forming concave hole matched with the main body is formed in the top face of the inner side of the mold cavity. Silica gel in a molten state is sent to the mold core through the first flow channel to fill the mold cavity and fill the small cavities corresponding to the main body, and air in the small cavities is exhausted through the formed exhaust holes to fill the small cavities, so that the forming quality of silica gel products is guaranteed faster and better.

The utility model provides a magnesium metal vacuum smelting furnace which comprises a tank body and a tank cover, a crucible and a splash-proof cover are arranged in the tank body, and a liquid ferrosilicon heat preservation input mechanism, a residue siphon discharging mechanism and a residual iron discharging mechanism are arranged at the bottom of the tank body. The liquid silicon iron heat preservation input mechanism comprises a liquid silicon iron built-in channel which is arranged upwards from the bottom of the crucible and a silicon iron heat preservation conveying pipeline which is arranged at the bottom of the tank body; the residue siphon discharging mechanism comprises a residue discharging built-in channel arranged upwards from the bottom of the crucible and a residue siphon discharging pipeline arranged on the outer side of the bottom of the tank body, a transparent viewing opening is formed in the pipe wall of the residue siphon discharging pipeline, and a cover body is arranged at an end opening of the residue siphon discharging pipeline; and the residual iron discharging mechanism is connected with the bottom of the tank body. According to the utility model, a liquid ferrosilicon reducing agent can be ensured not to be solidified during input, residues after reduction reaction can be smoothly discharged, and reduced residual iron can be automatically discharged.

The invention relates to the technical field of liquid silica gel forming, and discloses a liquid color silica gel forming process and clothing application, and the liquid color silica gel forming process comprises the following steps: step 1, base material pretreatment: selecting a flexible base material, cutting according to the size of a formed part, removing corner burrs, and sequentially carrying out ultrasonic cleaning, hot air drying and plasma activation; 2, according to the forming color requirement corresponding to the qualified flexible substrate obtained in the step 1, color paste preparation and dispersion are carried out, a bi-component addition type liquid silica gel matrix and special color paste are taken according to the mass ratio of 100: 8, 0.8% of surface modified nano-silica dispersion media are added, a dynamic shearing-ultrasonic two-stage dispersion technology is adopted for treatment, and the flexible substrate is obtained. According to the liquid color silica gel forming process, a two-stage dispersion process is adopted, a special dispersion medium is matched, uniform dispersion of color paste is achieved, and the liquid color silica gel forming process has the core advantages of being stable in color, washable and free of fading, good in silica gel fluidity after dispersion and suitable for scenes with high color requirements such as garment decoration.

The application relates to the technical field of injection molding, and discloses an injection-molding-based built-in structural part type forming die and a forming method. The injection-molding-based built-in structural part type forming die comprises a lower die and an upper die, a cavity, a first runner and a plurality of fan-shaped communication openings are formed between the lower die and the upper die, and the first runner is arranged on the outer side of the cavity. Through the arrangement of the first runner and the fan-shaped communication openings, liquid silicone can be uniformly flowed into the cavity, the silicone can be uniformly coated around the structural part, and the problems of insufficient local filling or excessive thickness can be avoided. The step-by-step preforming and low-pressure filling process is adopted, the upper half shell and the lower half shell are preformed as rigid barriers, the damage risk of high-pressure silicone solidification to the precise structural part is completely eliminated, the product performance and the yield are improved, the size precision and the functional integrity of the structural part are guaranteed, the yield and the reliability are remarkably improved, and the method can be applied to high-precision and high-value structural parts.

The utility model relates to a liquid silica gel thinning machine which comprises a fixed table, a lifting plate is arranged above the fixed table, movable plates are symmetrically arranged at the bottom of the fixed table and the bottom of the lifting plate in a sliding mode, a lower silica gel mold is arranged on the fixed table, and an upper silica gel mold is arranged at the bottom of the lifting plate. A heat preservation box is fixedly arranged on the rear side of the fixed table, an electric heater is fixedly arranged on the side wall of the heat preservation box, a stirring rod is rotatably arranged in an inner cavity of the heat preservation box, a cooling water tank is fixedly arranged in an inner cavity of the fixed table, and the cooling water tank is connected with a fixed table top plate and a lifting plate through guide pipes. The silica gel mold can be positioned and fixed through the movable plate, different molds can be conveniently replaced, liquid silica gel is temporarily stored in the heat preservation box with the high temperature, the situation that the liquid silica gel is cooled is prevented, the silica gel can be rapidly cooled through cooling water after being formed, and the practicability of the silica gel mold is improved.

The invention belongs to the technical field of lithium batteries, and relates to a preparation method of a double-coated silicon-carbon composite material, an electrode and a lithium battery, the method comprises the following steps: soaking a lithium dopant and an MOF material in a first organic solvent, adding a template agent and a catalyst, reacting, filtering, and freeze-drying to obtain a gel complex; in an inert atmosphere, heating the gel complex to a first preset temperature, introducing carbon dioxide according to a preset flow rate, cooling, adding into mixed acid, soaking, pickling, and drying in vacuum to obtain a porous carbon composite material; adding liquid silane, a phosphorane derivative, a dispersing agent, the porous carbon composite material and a silane coupling agent into a second organic solvent, performing spray drying, and performing primary carbonization to obtain a silicon-carbon precursor material; dissolving the resin in a third organic solvent, adding an ionic conductor and a silicon-carbon precursor material, carrying out secondary carbonization, cooling to a second preset temperature, and introducing a reducing gas to obtain a double-coated silicon-carbon composite material; the conductivity is improved, the interface stability is improved, and the full-charge expansion is reduced.

The utility model relates to the technical field of molds, and particularly discloses a liquid silicone mold of a semi-coated conductive integrated circuit. Wherein the front mold assembly comprises a front mold core; the rear mold assembly comprises a rear mold core, a mold core insert arranged on the rear mold core and an ejection assembly connected with the mold core insert; the first forming structure is used for forming the silica gel tooth socket part; and the second forming structure is used for wrapping a control circuit board, the second forming structure comprises a first fixing part arranged on the rear mold core and a second fixing part arranged on the front mold core, and the first fixing part and the second fixing part can be matched to fix the control circuit board. The control circuit board is good in fixing effect and good in forming effect.

The utility model relates to the technical field of clothing labels, in particular to a liquid silica gel clothing trademark which comprises a base layer, a liquid silica gel film, a silica gel limiting layer, a thermal bimetallic strip and a hot melt adhesive layer, the liquid silica gel film covers the top face of the base layer, a gap exists between the liquid silica gel film and the base layer, and the silica gel limiting layer is located on the top face of the base layer and connected with the base layer. A gap is formed in the substrate layer, a gap matched with the gap in shape is formed in the silica gel limiting layer, the liquid silica gel film can extend outwards along the gap to generate elastic deformation, the gap is filled with the thermal bimetallic strip to be connected with the liquid silica gel film, and the hot melt adhesive layer is located on the bottom face of the substrate layer to be connected with the substrate layer. The three-dimensional degree of the mark / logo on the trademark can be changed according to different temperatures, the style and the structure of the trademark can be enriched, practical significance and popularization value are achieved, and it is expected that good economic benefits can be generated.