26results about How to "Uniform melting" patented technology

The invention provides an anti-aging high-strength nylon material for automobiles and a preparation process of the anti-aging high-strength nylon material, and is applicable to the field of polymer composite materials. The material comprises 50%-60% of a nylon matrix material, 30%-40% of glass fibers, 0.3%-0.6% of an antioxidant composition, 0.3%-0.5% of an ultraviolet light absorber, 0.2%-0.4% of a light stabilizer, 0.1%-0.2% of an anti-hydrolysis agent, 0.1%-0.3% of a lubricant and 5%-10% of a flexibilizer. The preparation process comprises the steps of drying of the nylon matrix and the glass fibers, high-speed mixing, twin-screw extrusion, cooling and pelletizing and injection molding, and the tensile strength, the impact strength and the aging resistance of the prepared nylon material are remarkably improved by optimizing the proportion and process parameters. The material is suitable for high-performance application of automobile structural parts, exterior trimming parts and the like, overcomes the defects of the traditional nylon in the aspects of weather resistance, mechanical strength and processability, and provides a high-performance and long-life material choice for the automobile industry.

The invention discloses a smelting process of a special as-cast zinc alloy, which comprises the following steps: S1, when a crucible is filled, putting aluminum and zinc bulk materials above small bulk materials such as a magnesium elementary substance, an intermediate alloy and the like; s2, vacuumizing operation is carried out, so that the vacuum induction melting furnace is kept in a high-vacuum state; s3, the power is firstly increased, so that the temperature in the furnace is increased to a certain smelting temperature; when a sign of gas volatilization appears on the surface of the zinc alloy melt, starting to turn down the power so that the temperature in the furnace is reduced to a relatively stable smelting temperature state; s4, after natural cooling, the power is increased again, electromagnetic stirring is continuously conducted while heating continues, and refining operation is completed; and S5, after casting is completed, cooling is conducted for a certain time, and the special as-cast zinc alloy is obtained. According to the smelting technology, precise smelting and efficient refining of the zinc alloy are achieved, the mechanical property and corrosion resistance of the zinc alloy are effectively improved, and the requirement for the high-performance zinc alloy in the high-end manufacturing field can be met.

The present application belongs to the technical field of tungsten slag recycling, and discloses a high-temperature melting equipment for tungsten slag resource utilization; the melting furnace is internally provided with an electric heating wire on the inner wall. The separation assembly is arranged to separate the blocky tungsten slag and the powdery tungsten slag during the process of putting the tungsten slag into the melting furnace. The tungsten slag mixture is poured from the feeding pipe into the feeding area between the first conical plate and the conical filter screen. The powdery tungsten slag directly passes through the conical filter screen and falls into the lower internal area. The blocky tungsten slag slides downward along the conical filter screen under the action of gravity. Meanwhile, under the action of centrifugal force and inertia, the blocky tungsten slag is thrown out of the discharge port and thrown to the external area. Since the blocky tungsten slag in the external area is close to the inner wall and the partition plate of the melting furnace, the tungsten slag in the external area is heated quickly, thereby accelerating the melting of the blocky tungsten slag and realizing the uniform melting of the tungsten slag in the melting furnace.

The invention discloses a raw material pretreatment device with a bottle flake raw material impurity screening function, and relates to the field of bottle flake impurity screening. The raw material pretreatment device comprises a cleaning device, a drying and transporting device, and a crushing and melting device. The cleaning device is composed of a centrifugal motor, a chassis, and a cleaning rod, the chassis is connected with the cleaning rod and a centrifugal column, the cleaning device is used to clean the bottle flakes, the drying and transporting device is composed of a conveyor belt, an "S"-shaped track, a translation track, and a compressor, the driving shaft and the driven shaft of the conveyor belt are connected with the compressor, the conveyor belt completes the drying and transportation process of the bottle flakes through the translation of a slider at the bottom of the compressor and the telescopic effect of a telescopic rod, the dried bottle flakes are transported to the crushing and melting device through the drying and transporting device, the crushing and melting device is composed of a crushing gear roller and two layers of melting rollers, so that the melting state of the bottle flakes is further uniform.

The present application discloses a hot melt method and a hot melter for large-diameter pipes. It belongs to the technical field of hot melters. The structure can meet the radial heating method required for hot melting of large-diameter pipes, thereby balancing the melting degree of pipes and pipe fittings, and facilitating the welding of pipes and pipe fittings, reducing the difficulty of operation, improving work efficiency, and having a simple structure and being easy to use. The method comprises: preheating; the pipe fitting is sleeved on the inner melting die head of the inner melting component, and the pipe is sleeved on the outer melting die head of the outer melting component; the inner melting component and the outer melting component are heated at the same time, and at the same time, the inner melting die head performs radial pressure treatment on the inner wall of the pipe fitting outward, and the outer melting die head performs radial extrusion treatment on the outer wall of the pipe inward; after the inner surface of the pipe fitting and the outer surface of the pipe have reached a predetermined melting degree, the pipe fitting and the pipe are pulled out from the hot melter, and the melting end of the pipe is quickly sleeved on the melting end of the pipe fitting.

The utility model belongs to the technical field of hot welding device, specifically disclose a kind of inside hot welding device of hemispherical shell, including work panel, fixed with locating die on work panel, multiple hot welding holes are arranged on the hemispherical locating wall of locating die, locating die is accommodated with the hot riveting piece with vertical movement function, the top of hot riveting piece is respectively equipped with hot riveting head corresponding the position of each hot welding hole, locating die is equipped with the die with vertical movement function directly above, and the pressure column is elastically inserted in the die pressure surface that is hemispherical concave arrangement. The utility model is fixed with locating die on work panel, its hemispherical locating wall is equipped with hot welding hole, for the riveting piece welding leg guidance, locating die has the hot riveting piece that can be vertically moved, top hot riveting head accurately acts on welding leg, directly above has the die that can be vertically moved, and die pressure surface is consistent with shell, cooperate elastic pressure column, realize the high-precision positioning of the riveting piece and shell, uniform stable hot welding and reliable crimping, improve production efficiency, ensure product quality.

The invention relates to the technical field of nanocrystalline magnetic sheet preparation, and discloses a nanocrystalline magnetic sheet preparation method and equipment, the equipment comprises: a base, one side of the top of the base is provided with a preparation rack; the control mechanism is located in the preparation frame and comprises a positioning assembly, a material taking assembly and a bearing assembly, raw materials for preparing the nanocrystalline magnetic sheets are added into the feeding box through the feeding hopper, so that the raw materials are located in the feeding box, stirring rollers are driven by a servo motor to rotate, and the raw materials in the smelting box can be smelted; through the arrangement of the control mechanism, finished wafers can be taken out quickly, the production efficiency of the device is improved, the risk that the wafers are damaged due to frequent manual taking and placing of the wafers is avoided, meanwhile, the problem that the wafers are possibly affected by unnecessary heat or other environmental factors due to long-time retention in an existing device is solved, and the production efficiency of the device is improved. And the microstructure and the magnetic performance of the material are further damaged.

The invention discloses a production process of a plastic blank pipe. The production process comprises the following steps: 1, preparing a raw material mixture; 2, putting the raw material mixture obtained in the step 1 into a plastic extruding machine for plastic extruding to obtain a melt, injecting the melt into a blank mold to obtain a bottle blank, and cooling the bottle blank to room temperature; 3, putting the bottle preform obtained in the step 2 into a forming mold, heating to 95-120 DEG C, carrying out extension blow molding on the bottle preform to form a preset shape, and putting the forming mold into a cooling chamber for cooling to room temperature; and fourthly, the forming mold cooled to the room temperature is subjected to demolding treatment, and a product is obtained. And fifthly, burrs and sprues of the product obtained in the fourth step are cut off, and the cut-off position is polished. The invention aims to provide the plastic blank pipe production process and the special device which can give consideration to both the product quality and the production efficiency.

The utility model discloses a tilting mechanism based on induction furnace, including main part subassembly, including induction furnace main part, first rotation column, fixed frame, second rotation column and support leg, the first rotation column is fixed in one side of induction furnace main part, the fixed frame is rotatingly connected with the one end of first rotation column, the second rotation column is fixed in the second rotation column, and the support leg is fixed in the second rotation column. The second rotating column is fixed to one side of the fixing frame, and the supporting leg is rotationally connected to one end of the second rotating column; and the tilting assembly is arranged on the main body assembly and comprises a tilting part and a limiting part, the tilting part is arranged on the fixing frame, and the limiting part is arranged on the supporting leg. The induction furnace has the beneficial effects that through the arrangement of the tilting piece, the induction furnace main body can be conveniently swung and tilted back and forth, so that the smelting of the induction furnace main body is more uniform, meanwhile, the falling is also convenient, and through the arrangement of the limiting piece, the tilting piece is limited.

The invention discloses a continuous purification device for high-purity indium, and relates to the technical field of high-purity indium processing. The device comprises a purification furnace, a feeding assembly is arranged on one side of the purification furnace and comprises a feeding box fixedly connected to one side of the purification furnace, first hydraulic cylinders are fixedly connected to the front end and the rear end of one side of the top of the feeding box correspondingly, and output shafts of the first hydraulic cylinders extend into the feeding box and are fixedly connected with a lifting plate; and extrusion rollers are rotationally connected to the two sides of the lower surface of the lifting plate and located at a feeding opening of the feeding box, a plurality of feeding rollers are rotationally connected to the lower portion of the interior of the feeding box at equal intervals, and an auxiliary heating assembly is arranged below the purification furnace. Indium raw materials are extruded and heated through the feeding box, the extrusion roller, the feeding roller and the air inlet pipe, the problem that the indium raw materials are inconvenient to heat and melt in the prior art is solved, the molten indium raw materials are uniformly heated through the steam box, the steam pipe, the baffle and the flow guide plate, and the problem that the existing vacuum distillation speed is low is solved.

The utility model relates to the technical field of nylon material processing, in particular to a quick melting extruder for nylon composite material production, which comprises a bottom plate, a stirring and heating component, a conveying and extruding mechanism and a feeding mechanism, support legs are fixedly mounted at the top of the bottom plate, and connecting rods are fixedly mounted on the outer walls of the support legs. The stirring and heating assembly and the feeding mechanism are matched for use, so that after being uniformly crushed by the crushing blades, nylon raw materials are more uniform in particle size, more uniform in melting and more uniform in melting time, the phenomenon of incomplete melting does not occur easily, and the nylon raw materials are filtered by the filter screen, so that the melting efficiency is improved. The nylon composite material enters the heating box, is fully heated by the heating sleeve, and is uniformly mixed and stirred by the stirring blades, so that the mixed material is more uniformly distributed, the melting quality is improved, and meanwhile, the stop time of the nylon composite material in the heating box is longer by adopting the baffle plate.

The disclosure provides a flame gun for spherical powder particle preparation, comprising a first shell, a middle part of the first shell is coaxially provided with a discharge hole, which is suitable for outputting a mixture of an oxidizing agent and a raw material powder, a plurality of fuel holes are further arranged in the first shell, the plurality of fuel holes are uniformly and spacedly arranged in the circumferential direction of the discharge hole, the fuel holes are inclined to the axis of the discharge hole, and each fuel hole has the same inclination direction; wherein each fuel hole comprises a first end for inputting fuel and a second end for outputting fuel, in the orthographic projection in the thickness direction of the first shell, the projection of the second end is located between the projection of the first end and the projection of the discharge hole, and the midpoint of the projection of the second end is not collinear with the midpoints of the projections of the first end and the discharge hole.

The present invention relates to a yellow high borosilicate glass composition, which belongs to the technical field of borosilicate glass, and comprises the following raw materials by weight: 60-70 parts of SiO2, 10-15 parts of B2O3, 12.1-29 parts of reinforcing materials and several parts of yellow colorants; wherein the reinforcing materials include La2O3, CaO, ZnO, Al2O3, Na2O and MoO3. The present invention optimizes the formula to enhance the ratio of La2O3, CaO and ZnO, thereby improving the wear resistance of the glass. Chrome yellow PbCrO4 is used for coloring, which is both beautiful and strengthens ultraviolet and blue light filtering. Heat treatment and gradient annealing processes are set to ensure that the glass has high purity and strong light transmittance. Increasing the Na2O content achieves a good fluxing effect, promotes the transformation of the boron-oxygen structure, and enhances the uniformity of the glass. Molten potassium salt bath treatment, introduction of K + Forms a protective film to improve surface smoothness, scratch resistance and corrosion resistance, and comprehensively optimizes glass performance.

This application discloses a servo turntable assembly for a center-driven vertical injection molding machine and the vertical injection molding machine itself, belonging to the field of intelligent manufacturing equipment. It includes a mold base, an upper mold-closing base, a lower mold-closing base, a turntable, a turntable servo assembly, a mold-closing linkage assembly, a mold-closing servo assembly, and a mold-closing fine-tuning assembly. This application has the effects of reducing injection molding machine energy consumption, reducing pollution, and improving mold-closing accuracy.

The invention relates to an optical special screw capable of improving the stability of molten glue, and belongs to the technical field of optical screws of injection molding machines, the screw is sequentially divided into a feeding section, a compression section and a metering section from feeding to discharging, the bottom diameter of each tooth of the feeding section is consistent, the bottom diameter and the edge width of each tooth of the compression section are gradually changed, and the bottom diameter of each tooth of the metering section is consistent. The whole length of the feeding section, the compression section and the metering section is subjected to fine polishing mirror surface treatment, so that melt glue is stable and uniform, and the problems that the requirement of an optical special screw on the stability of the melt glue is extremely high, and the quality and the stability of the melt glue are affected due to the fact that shearing stress and temperature gradient are possibly generated by a barrier section in the material circulation process are solved. Meanwhile, due to the reasonable segmented design, the possibility of excessive mixing is reduced, and the problem of non-uniform orientation of the materials is avoided.

The utility model relates to a special burner for an industrial gas kiln, which comprises a burner body, a mounting box, a vehicle body and an extending spray pipe, and a reciprocating type moving mechanism is arranged outside the vehicle body; the reciprocating type moving mechanism comprises a driving motor fixedly installed on the back face of the installation box, an output shaft of the driving motor is fixedly connected with a lead screw, the outer surface of the lead screw is sleeved with a threaded sleeve in a threaded mode, the interior of the installation box is fixedly connected with a sleeve rod, and the top of the threaded sleeve and the top of a sliding sleeve are both fixedly connected with connecting rods. The top of the connecting rod is fixedly connected with a movable platform, and the bottom of the burner body is fixedly connected with the top of the movable platform. According to the combustor special for the industrial gas kiln, the reciprocating type moving mechanism is arranged, so that the flame jetting position of the combustor body is continuously changed, internal materials are smelted more evenly, then smelting through multiple combustors is not needed, energy loss is effectively reduced, and use is more facilitated.

The present invention discloses an automated preparation device for a precision mold shell, and relates to the field of casting technology. The device comprises a mounting seat, wherein four supporting and moving mechanisms are arranged at the bottom of the mounting seat, a telescopic adjustment mechanism is arranged at the lower middle part of the mounting seat, the mounting seat is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a T-shaped seat, a lifting and lowering water storage shell mechanism is arranged on the mounting seat, a steam melting mechanism is arranged on the lifting and lowering water storage shell mechanism, a positioning clamping rod mechanism is arranged on the T-shaped seat, and a plurality of placement and movement components are arranged on the T-shaped seat, wherein the placement and movement components comprise a moving frame, a driving shaft mechanism and a clamping wheel mechanism. The present invention can adjust the state of the supporting and movement mechanism by arranging a telescopic adjustment mechanism to switch the movement or support state of the device, and can heat and melt the workpiece by means of the lifting and lowering water storage shell mechanism and the steam melting mechanism, thereby increasing the melting rate and uniformity, and improving the efficiency of the preparation of the precision mold shell.

The utility model relates to 3D printing technical field, concretely is a kind of 3D printing production line of continuous production, including printing equipment ontology, AGV transport vehicle and raw material powder screening box, AGV transport vehicle is installed with raw material powder screening box, raw material powder screening box includes box, first screening chamber, second screening chamber, screening cylinder and heating wire, AGV transport vehicle is not permanently fixed and is installed raw material powder screening box, raw material powder screening box is connected with first screening chamber and second screening chamber, first screening chamber is rotatably installed with screening cylinder, fan is fixedly installed below first screening board, the air inlet hole is established in the box corresponding fan, heating wire is fixedly installed in the air inlet hole;While guaranteeing raw material melting even when screening out standard particle size's granular raw material to use, granular raw material surface moisture can also be removed and preheating, solve the problem that 3D printing production line in granular raw material particle size is not even easy not completely fused and block nozzle, leading to production line stop.

The flame gun comprises a first shell, a discharging hole is coaxially formed in the middle of the first shell and is suitable for outputting a mixture of an oxidizing agent and raw material powder, a plurality of fuel holes are further formed in the first shell, the fuel holes are evenly formed in the circumferential direction of the discharging hole at intervals, and the discharging hole is used for discharging the mixture of the oxidizing agent and the raw material powder. The fuel holes are inclined to the axis of the discharge hole, and the fuel holes have the same inclined direction; wherein each fuel hole comprises a first end used for inputting fuel and a second end used for outputting fuel, in the orthographic projection of the first shell in the thickness direction, the projection of the second end is located between the projection of the first end and the projection of the discharging hole, and the midpoint of the projection of the second end is not collinear with the midpoint of the projection of the first end and the midpoint of the projection of the discharging hole.

The invention provides a double-cylinder type automobile injection molding accessory injection molding machine, which comprises a material stirring mechanism, a heating extrusion mechanism and a hot runner mechanism, the material stirring mechanism comprises a material stirring box and a stirring assembly, the stirring assembly is installed in the material stirring box, the stirring assembly comprises a stirring shaft and a stirring rod, the stirring shaft is longitudinally installed in the material stirring box, and the stirring rod is obliquely installed on the outer wall of the stirring shaft. The top end of the stirring shaft is in transmission connection with a motor shaft of the stirring motor, the heating extrusion mechanism comprises an extrusion barrel, an outer barrel body, a plurality of heating pipes and an extrusion assembly, the extrusion barrel is arranged below the material stirring box, the discharging end of the material stirring box is connected with the feeding end of the extrusion barrel through a discharging pipe, and the extrusion barrel is sleeved with the outer barrel body; the multiple heating pipes are circumferentially distributed between the extrusion barrel and the outer barrel, the extrusion assembly is installed in an inner cavity of the extrusion barrel, and the hot runner mechanism is installed below the extrusion barrel. The injection molding machine is novel in structure, injection molding raw materials can be evenly mixed, fused and fed, and the machining efficiency and quality of automobile injection molding accessories are improved.

The invention discloses a mould-proof and flame-retardant wood-plastic composite decorative wallboard which comprises the following components in percentage by weight: 10-40% of mixed powder, 1-10% of high-density polyethylene (HDPE), 1-5% of a mould inhibitor, 1-5% of a reinforcing agent and 1-5% of a stabilizing agent. The high-density polyethylene (HDPE) accounts for 10-40% of the total weight, the flame retardant accounts for 1-10% of the total weight, the mixed powder accounts for 30-75% of the total weight, the mould inhibitor accounts for 1-5% of the total weight, the reinforcing agent accounts for 1-5% of the total weight, the reinforcing agent accounts for 1-5% of the total weight, and the stabilizing agent accounts for 1-5% of the total weight. The reinforcing agent accounts for 1-5% of the total weight, and the stabilizer accounts for 1-5% of the total weight. According to the wood-plastic composite decorative wall board, the mildew preventive and the flame retardant are added, growth of mildew can be effectively inhibited, the wood-plastic composite decorative wall board has good flame retardant performance, and the safety and durability of products are improved.

The utility model discloses a chemical fiber friction material production device in the field of chemical fiber friction materials, which comprises a transversely arranged double-screw extruder, a feeding port is arranged on the upper side of the double-screw extruder, a discharging port is arranged at the rear end of the double-screw extruder, a belt conveyor is arranged corresponding to the discharging port of the double-screw extruder, and a belt is arranged on the belt conveyor. The belt conveyor is obliquely arranged, a hopper is arranged corresponding to the discharging end of the belt conveyor, a ton bag is arranged below the hopper, the ton bag is arranged on a placing seat, the placing seat comprises a rectangular base plate, side baffles are vertically arranged on the left side and the right side of the upper surface of the base plate, the side baffles are transversely arranged, and a front baffle is vertically arranged on the front side of the upper surface of the base plate. The front baffle is longitudinally arranged, and the placing base is arranged on the weighing platform. The floor area of friction material production equipment can be reduced, the production process is simplified and more environment-friendly, and products are more convenient to weigh and pack during shipment.

The utility model belongs to injection moulding technical field, concretely speaking is a kind of utensil injection molding machine's preheating feed device, including work bench, the surface of work bench is fixedly installed with four supporting legs, the top of four supporting legs is fixedly installed with guide column, the outside of guide column is all equipped with vibration spring, one end of vibration spring is fixedly installed with feed bin, the side of feed bin is provided with vibrating mechanism, for driving feed bin vibration, work bench surface is equipped with injection molding mechanism, cooperates through vibrating mechanism and vibration spring, realizes high -efficient anti -clumping and stable feed, first motor drive carousel linkage each component, make feed bin vibration, break raw material adhesion and even blanking, vibration spring absorbs impact, auxiliary reset, guarantee equipment stability and vibration effect, simultaneously, knob can be flexibly adjusted slider position, adjustment amplitude, adapt to different raw material characteristics, solve raw material granularity uneven, easily clump and other difficult problems, improve feed efficiency and uniformity.

The application provides a multilayer fiber reinforced composite material and a preparation method thereof. The multilayer fiber reinforced composite material is prepared by hot pressing and curing a prepreg stack, and the prepreg stack comprises: an alumina fiber plain cloth prepreg located at the center, and high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepregs, alumina fiber unidirectional cloth prepregs and high-strength glass fiber plain cloth prepregs symmetrically distributed on both sides of the alumina fiber plain cloth prepreg from inside to outside. The alumina fiber plain cloth prepreg, the high-modulus poly-p-phenylene benzobisoxazole fiber unidirectional cloth prepreg, the alumina fiber unidirectional cloth prepreg and the high-strength glass fiber plain cloth prepreg are all combined by corresponding fiber cloth and epoxy resin adhesive film through hot pressing. The multilayer fiber reinforced composite material is super-thin, has strong impact resistance and puncture resistance, and is environmentally friendly in process.

The invention discloses a method for preparing an efficient and corrosion-resistant 18K purple gold aluminum alloy. Step 1: prepare the following raw materials by mass ratio: 75-83 parts of gold, 23-24.5 parts of aluminum, 0.5-2 parts of rare earth, and 0.5-2 parts of tantalum or niobium; Step 2: first mix gold and part of aluminum and put them into a vacuum medium frequency induction furnace, prepare the gold aluminum alloy and take it out, then mix the rare earth and the remaining aluminum and put them into a vacuum medium frequency induction furnace, prepare the aluminum-based rare earth alloy and take it out; grind the gold aluminum alloy and the aluminum-based rare earth alloy into powder together; Step 3: stir the alloy powder evenly and compact it into a cake, melt it under argon protection, and grind it for fine polishing; Step 4: ion-implant tantalum or niobium on the surface of AuAl2, and then anneal and diffuse it under argon protection; Step 5: prepare an anodizing electrolyte; Step 6: perform an anodizing treatment. It can not only ensure the color quality of the 18K purple gold aluminum alloy, but also obtain a dense composite oxide film to improve corrosion resistance.

The invention relates to the technical field of quartz product production, and discloses quartz weight plasma processing equipment which comprises a melting furnace, a supporting plate and a controller, a furnace cover is installed at the top end of the melting furnace, supporting legs are installed at the bottom end of the melting furnace, the bottom end of the melting furnace is communicated with a slag discharging pipe, and an air suction pipe is communicated with one side, close to the top end, of the melting furnace. According to the device, a quartz weight can rotate while moving up and down in a reciprocating mode in the high-temperature heating and melting process, an upper plasma torch evenly scans and heats the outer surface of the quartz weight from top to bottom and then from bottom to top, heat is rapidly guided in from multiple directions, and therefore the quartz weight can be heated in a high-temperature mode, and the quality of the quartz weight is improved. The thermal stress is greatly reduced, cracking is avoided, the centrifugal force generated during rotation of the quartz weight can effectively discharge bubbles generated during heating of the quartz weight, the optimal dynamic condition is created for bubble discharge, and the bubble content of a finished product is remarkably reduced.