412 results about "Surface smoothness" patented technology

An additive manufacturing method based on micro-selective laser melting technology. By using a spot size of 30 μm or less, a metal powder layer thickness of 10 μm or less and ultrafine metal powders having a D90 particle size of 30 μm or less, and in combination with the control of a scanning laser power, a scanning rate, a linear energy density and a volumetric energy density within specific ranges, the method can print complex-structured metal parts having extremely high resolutions and surface smoothness, and can obtain a high-density internal structure of a component even under a relatively low energy density or power condition, thereby effectively protecting an optical system. Moreover, a printed component exhibits a defect-free microstructure, and has excellent electrical properties, thermal properties and mechanical properties. Particularly, ultrafine grains and a high dislocation density provide superior mechanical properties compared to conventional manufacturing materials. An infrared laser device can be used, thereby achieving low costs.

The present disclosure provides high bulk tissue products, as well as an apparatus and methods for manufacturing the same. The tissue products provided herein not only have high bulk, but they also have improved surface smoothness, particularly compared to tissue products of similar basis weights.

The invention belongs to the technical field of grinding equipment, and particularly relates to a welded pipe mold cambered surface smoothness accurate grinding device which comprises a workbench, a fixing assembly is arranged on one side of the upper end of the workbench and comprises two first circular plates arranged at the upper end of the workbench in a sliding mode, and an accurate grinding assembly is arranged on one side of the fixing assembly. The accurate grinding assembly comprises an arc-shaped plate slidably arranged at the upper end of the workbench, the side, close to the first circular plate, of the arc-shaped plate is wrapped with abrasive paper, second rectangular strips are rotatably arranged at the two ends of the side, away from the abrasive paper, of the arc-shaped plate, and a third rectangular strip is arranged between the second rectangular strips. A fourth rectangular strip is fixedly connected to the end, away from the arc-shaped plate, of the third rectangular strip, a second rectangular hole is formed in the position, corresponding to the third rectangular strip, of the fourth rectangular strip, and the third rectangular strip is slidably arranged in the second rectangular hole. And the practicability is low.

The invention relates to the technical field of intelligent manufacturing equipment, in particular to grinding equipment for plastic mold accessory production. Comprising a plurality of containing cavities evenly distributed in the circumferential direction and arranged on a base, the base is provided with symmetrically-distributed electric control push rods, telescopic parts of the symmetrically-distributed electric control push rods are jointly and fixedly connected with a fixing frame, a motor is installed in the fixing frame, and an output shaft of the motor is fixedly connected with a first gear; second gears which are evenly distributed in the circumferential direction are rotationally connected into the fixing frame, the number of the second gears is the same as that of the containing cavities, and a grinding roller is arranged in the base. The multiple guide columns are ground through the multiple grinding rollers at the same time, so that the grinding time and the grinding degree of the multiple guide columns on the same die are the same, and the situation that due to state fluctuation of the grinding rollers during one-by-one grinding, the surface smoothness difference of the multiple guide columns on the same die is caused is reduced, and the grinding efficiency of the guide columns and the quality after grinding are guaranteed through grinding.

The invention discloses a clamping and supporting tool for thin-wall parts, and relates to the field of clamping and supporting tools, the clamping and supporting tool comprises a box body part, a square inner groove is formed in the middle of one end of the box body part, a first clamping tool is arranged in the square inner groove, and the first clamping tool is of a frame type structure and is matched with the square inner groove in the box body part; a plurality of first inner grooves which are symmetrically distributed are formed in the peripheral wall of the first clamping tool, the first inner grooves are blind grooves, and clamping springs are fixedly installed at the bottoms of the first inner grooves; by means of the combined structure of a frame type / rod-shaped clamp, an elastic support and a process plate, traditional rigid clamping is replaced, clamping force can be evenly dispersed, plastic deformation during thin-wall part machining is effectively avoided, the size precision, shape tolerance and surface smoothness of parts are guaranteed, and the rejection rate of the parts is reduced; and meanwhile, damage to the inner wall caused by excessive supporting is prevented through the process plate (or the follow-up process plate), and the qualification rate of parts is further increased.

The invention belongs to the technical field of heavy machine tool machining, and particularly relates to a transmission structure for heavy horizontal machine tool machining and a machining method. Comprising a moving seat, the two ends of the upper surface of the moving seat are fixedly connected with a tool apron and a skewness measuring assembly respectively, the skewness measuring assembly comprises a measuring tool connecting arm, the measuring tool connecting arm comprises a first measuring tool arm, one end of the first measuring tool arm is rotationally connected to a lifting seat and is in transmission connection with a stepping motor, and the stepping motor is fixedly connected to the lifting seat. The device can assist a wheel velocimeter in more conveniently and accurately measuring the rotating speed and the skewness of the outer surface of a turning billet in real time, and is more convenient for lifting a workpiece, so that cuttings generated in turning are reduced, and the cuttings are prevented from scratching the machined surface; built-up edges can be reduced, the surface smoothness is improved, and the surface roughness is reduced; and in the turning process, the turning speed is adjusted in real time along with the change of the shape and the quality of the machined steel blank so as to keep the optimal turning rotating speed.

The invention provides a preparation method of 3D printing ceramic slurry and a ceramic shaping method, and the preparation method of the 3D printing ceramic slurry comprises the following steps: S1, loading nano-scale silicon dioxide on the surface of micro-nano-scale aluminum oxide to obtain nano-silicon dioxide modified aluminum oxide; s2, coating the surface of the nano silicon dioxide modified aluminum oxide with aluminum hydroxide to obtain modified aluminum oxide; and S3, ball-milling and mixing the modified aluminum oxide and a dispersing agent, and then mixing and stirring with a binder, an auxiliary agent and a solvent. The 3D printing ceramic slurry provided by the invention can realize high solid content, has good dispersibility and fluidity, is strong in stability, is not liable to cause problems of layering, precipitation and the like, the surface smoothness of extruded silk threads is high, and a prepared ceramic product is high in strength.

The invention provides a large-size optical mold material for aspheric glass lens mold pressing, a preparation method of the large-size optical mold material and a large-size optical mold for aspheric glass lens mold pressing, wherein the large-size optical mold is made of the large-size optical mold material. The large-size optical mold material is formed by tungsten carbide and a sintering inhibitor through SPS sintering, the diameter of the large-size optical mold material is 100-200 mm, and the height of the large-size optical mold material is 10-100 mm; the fracture toughness of the large-size optical mold material is 7.4-7.5 MPa.m < 1 / 2 >, and the content of the sintering inhibitor is 0.1 wt.%-2 wt.%. The large-size optical mold material has the advantages of high density, high hardness, proper thermal expansion coefficient, favorable processability, excellent surface smoothness and uniform and consistent radial hardness, and is suitable for processing and forming a large-size optical mold for mold pressing of aspheric glass lenses.

Chemically treating ionically conductive sulfide glass solid electrolyte separators or separator layers can improve performance. In particular, treatment involving chemically etching a surface or surface region of the sulfide glass separator to blunt, lessen or remove edge defects or surface flaws, and / or to enhance surface smoothness is cost effective, reliable and well suited for high production environments compared to physical methods of removing scratches or smoothing surfaces, such as mechanical grinding and polishing.

The invention discloses a tension real-time feedback and slitting online monitoring system for a slitting machine, which belongs to the technical field of coiled material slitting and comprises a first guide roller group, a second guide roller group, a third guide roller group, a shearing mechanism and a polishing mechanism which are mounted on a fixing frame. The tension real-time feedback and slitting online monitoring system of the slitting machine further comprises a second mounting plate and a controller. The power of the first shearing roller is transmitted to the two sets of grinding assemblies through the first transmission belt, so that the multiple grinding parts of the two sets of grinding assemblies rotate synchronously, the top face and the bottom face of the coiled material obtained after slitting are ground, corners and burrs generated in the slitting process are removed, and the requirement of subsequent machining for the surface smoothness of the coiled material is met. The controller can be matched with the corresponding grinding rotating speed according to the burr conditions of different cut coiled materials, the situation that the coiled materials are damaged due to excessive grinding is avoided, and the defect that grinding is insufficient and residues exist is also avoided.

The invention belongs to the technical field of additive manufacturing, and discloses a method and device for improving 3D printing quality, the device is used for being matched with an FDM 3D printing system, the device comprises a printing platform (4), a containing cavity (5), a temperature control system, an annular ultrasonic auxiliary system (3), a liquid circulation system and an infrared liquid level detector (8), and the containing cavity (5) is provided with an ultrasonic generator (53); the annular ultrasonic auxiliary system (3) comprises an annular support (31), an ultrasonic array module (32), a spray header module (33) and a lifting mechanism (34). According to the 3D printing device, the assemblies are improved, and 3D printing can be effectively improved through the overall arrangement of the containing cavity, the temperature control system, the annular ultrasonic auxiliary system, the liquid circulation system and the infrared liquid level detector. The device is flexible in structure, high in synchronism and excellent in local treatment capacity, and the surface smoothness and structural integrity of the FDM 3D printing piece can be remarkably improved.

The invention relates to the technical field of gratings, in particular to a prismatic grating and a manufacturing method thereof. The prism grating comprises a prism and a grating part. The prism is provided with a binding face, the grating component comprises a base body part and a diffraction part, the diffraction part is mainly used for diffracting and splitting incident light, the base body part is arranged on the binding face, and the diffraction part is arranged on the side, away from the binding face, of the base body part. The base part and the diffraction part are integrally formed on the binding surface. The substrate part and the diffraction part are integrally formed and are formed on the binding surface of the prism together, so that the grating part is directly formed on the binding surface of the prism to form the prism grid, the process is simple, the flow is short, the cost is reduced, and the structural strength of the grating part is improved. According to the manufacturing method, the integrally-formed grating component is manufactured on the binding face of the prism through the imprinting technology, the imprinting technology is completed through automatic equipment, the dependence degree on the skills of staff is basically zero, meanwhile, the requirements for the surface smoothness, flatness, roughness and the like of the binding face of the prism are low, and the yield can be improved.

The invention discloses a one-kiln two-line production process for energy-saving glass, and relates to the technical field of energy-saving glass plate production. A shunting pressure stabilizing chamber, a central partition wall and an electromagnetic-platinum combined stirring device are arranged at the tail end of a melting furnace, and are matched with prolonging of clarification residence time and a microbubble bubbling device, so that a highly uniform temperature field and component distribution can be obtained before molten glass enters a feeding channel, and bubbles and inclusions are fully eliminated. By means of the collaborative measure, the melt cleanliness is remarkably improved, optical defects such as stripes, stones and white points in the subsequent forming process are greatly reduced, and the appearance and the physical strength of a finished product are more reliable. By means of the Y-shaped double feeding channels and the independent temperature control tin bath, ultra-thin glass and medium-thickness glass can be produced at the same time in the same melting furnace and do not interfere with each other. The main line focuses on the flatness and the optical quality of the energy-saving glass of the building curtain wall, and the branch line focuses on the thickness control and the surface smoothness of the ultrathin energy-saving glass.

The invention discloses a forging and heat treatment process for a single-row tapered roller bearing ring. Raw materials are sequentially subjected to cutting, forging, annealing, turning and heat treatment, and then the single-row tapered roller bearing ring is obtained. The hot-rolled polished bar is used as the raw material, so that the surface smoothness of the bar is ensured, no crack occurs during forging, and the yield of the material is improved; a secondary heating process is adopted after forging, it is guaranteed that the forge piece is in a reasonable temperature interval during rolling expansion, the phenomenon of rolling expansion cracks does not occur, and the product quality of the forge piece is guaranteed; the ash cooling process is adopted to replace slow cooling along with a furnace in an electric furnace, the process method is simple, practical and low in cost, and electric energy is saved on the premise that the quality of the forge piece is guaranteed; three-time preheating is adopted. The vacuum heating and heat conduction mode is radiation heating, and a repeated preheating mode is adopted, so that the ferrule in the furnace can be uniformly heated, the heating temperature is slowly increased, thermal stress in the ferrule can be reduced, and the quality of the quenched ferrule is ensured.

The invention relates to a corrosion-resistant and high-temperature-resistant sinter plate and a preparation method thereof, and belongs to the technical field of sinter plate preparation. According to the invention, by controlling the temperature of a melt extruder and a mold extrusion process and combining dual polishing treatment, rough grinding is carried out by a 500-mesh grinding head and then accurate grinding is carried out by a 2000-mesh grinding head, so that the surface smoothness and cleanliness of a basic plate are effectively improved; the surface dust is further removed by adopting a nitrogen purging process, a solid foundation is laid for uniform adhesion of the surface strengthening coating, the surface strengthening coating is uniformly coated by adopting a spraying method, the corrosion resistance and the high temperature resistance of the sinter plate are enhanced, the firm combination between the coating and the basic plate is also ensured, and the service life of the sinter plate is prolonged. Therefore, the service life and the overall performance of the sinter plate are remarkably improved, and the application range of the sinter plate in a severe environment is widened.

The invention discloses a low-resistance bonding ceramic tube coating material and a coating method thereof, and relates to the field of steel tube coatings, and the low-resistance bonding ceramic tube coating material comprises a bottom layer material, a ceramic hybrid layer material and a hydrophobic functional material. According to the low-resistance bonding ceramic tube coating material and the coating method thereof, through coating of the bottom layer material, the ceramic hybrid layer material and the hydrophobic functional material, a coated steel tube can have natural resistance to corrosive media such as acid, alkali and salts, and even under the long-term complex working condition, the corrosion resistance of the steel tube is greatly improved. The roughness of the inner wall of the pipe can still be stably maintained within the range of 20-100 microns, the surface smoothness is 5-20 times that of a traditional pipe in the initial service stage, the friction coefficient of fluid and the pipe wall can be greatly reduced, the fluid can more easily form a laminar flow state, energy loss is effectively reduced, and the service life of the pipe is prolonged. And the composite material can be applied to the fields with extremely high requirements on energy consumption and stability, such as ships, airplanes, high-speed rails, ocean engineering, petrochemical engineering, sewage treatment, long-distance water delivery and the like.

The invention relates to the technical field of composite material manufacturing, and discloses a manufacturing method of a composite material tubular structure product, which comprises the following steps of: effectively solving the problems of thermal deformation and large weight in the traditional metal plate welding process through an innovative staggered platform laying layer design and an autoclave and vacuum bag pressing prepreg forming process; and in the composite material bonding process, the strength of the joint is insufficient, and the overall strength is poor. Meanwhile, the technological process is simple and efficient, the cost is low, and the final product has good surface smoothness and attractiveness.

The present invention discloses a method, device, and storage medium for intelligently generating a three-dimensional cast steel node entity model. The method for intelligently generating a three-dimensional cast steel node entity model comprises the following steps: (1) generating a topologically optimized structure of a three-dimensional cast steel node; (2) using the topologically optimized structure of the three-dimensional cast steel node to create a training set for intelligently generating a three-dimensional cast steel node model; (3) importing the training set obtained in step (2) into a three-dimensional generative adversarial network to generate a three-dimensional cast steel node model and performing visualization processing on the model; (4) performing entity and splicing processing on the visualized three-dimensional cast steel node model. This method can solve the problems of insufficient video memory of the computer during editing operations in the process of generating a three-dimensional cast steel node entity model using a computer, insufficient surface smoothness of the generated three-dimensional cast steel node entity model, and lack of complete properties of the entity model.

The utility model discloses a plate surface forming device which comprises two pressing blocks which are oppositely arranged up and down, a connecting base is installed on the side, away from the other pressing block, of one pressing block, a sliding ring is installed on the connecting base, the sliding ring is connected with a main rod, and the main rod can move up and down to drive the sliding ring to move synchronously so that the two pressing blocks can be close to each other or away from each other. A plate body is conveyed between the two pressing blocks, the conveying direction of the plate body is perpendicular to the moving direction of the pressing blocks, a pressing plate is installed on the side, close to the other pressing block, of one pressing block, the pressing plate is provided with a plurality of protruding parts, the protruding parts are arranged at intervals in the length direction of the pressing plate, and the protruding parts of the two pressing plates are located on the upper side and the lower side of the conveying direction of the plate body respectively. The utility model provides a plate surface forming device which can reduce the smoothness of a PFA (Polyfluoroalkoxy) plate surface and improve the adhesive force and friction force of the plate surface.

The invention provides a method for forming a semiconductor structure. The method comprises the steps of providing a first substrate; performing one or more metal stacking operations on the first substrate, wherein the metal stacking operations comprise: providing a second substrate; forming a metal layer on the second substrate; and performing separation operation on the second substrate and the metal layer, and transferring the metal layer to the first substrate. By adopting the technical scheme, the forming processes of the metal layers and the first substrate are mutually independent and do not influence each other, or when multiple metal stacking operations are executed, the forming processes of the metal layers are mutually independent and do not influence each other, so that the surface smoothness of the metal layers can be improved, and the surface smoothness of the metal layers can be improved after the metal layers are transferred to the first substrate. The contact effect of the metal layer and the film layer below is improved (for example, when multiple metal stacking operations are executed, the contact effect of the adjacent metal layers is improved, and the contact resistance can be reduced), so that the performance of the semiconductor structure can be improved.

The invention relates to the field of automobile lamp machining, in particular to an auxiliary positioning tool for surface spraying of an automobile lamp shell. According to the auxiliary positioning tool for spraying the surface of the automobile lamp shell, the sliding rods and the supporting clamping blocks on the conveying belt form a positioning clamping tool for fixedly supporting the housings, the multiple sets of spraying mechanisms are arranged, spraying-curing treatment of multiple layers of coatings is sequentially conducted on all the housings in an assembly line spraying mode, and the spraying efficiency is improved. In addition, the angle of the housing can be adjusted by pushing a supporting clamping block through a lifting supporting plate, the spraying pipe can evenly spray paint to the surface of the housing at a proper angle without large-angle rotation, and the surface smoothness and uniformity of a coating on the surface of the housing are improved. The technical problems that the working efficiency is low when coating spraying treatment is sequentially carried out on all the housings back and forth for multiple times, and the phenomenon of uneven coating spraying can be seriously caused by irregular curved surface structures of the housings are solved.

The invention relates to the technical field of mechanical seals, in particular to a mechanical seal repairing method. According to the repairing method of the mechanical seal, the hard coatings are formed on the abraded end faces of the moving ring and the static ring through the nanometer hard coating paste, the diamond grinding agent and the wool grinding head are used for conducting coarse grinding, fine grinding and mirror grinding on the solidified hard coatings, so that the hard coatings and the original surface form a uniform and flat surface, and the surface smoothness is smaller than or equal to 0.3 micrometer. After being installed, the repaired moving ring and the repaired static ring can resist the pressure of 0.2 MPa through pressure testing, so that the service life of the mechanical seal is greatly prolonged, the production cost of an enterprise is reduced, and the running loss is reduced.

The invention discloses a long-service-life steel shot grading rounding device, and belongs to the technical field of steel shot rounding, the long-service-life steel shot grading rounding device comprises a feeding mechanism used for feeding steel shots and a main body frame body, and the main body frame body is provided with an impact mechanism used for conducting preliminary rounding on the steel shots and a grading mechanism used for conducting grading rounding on the steel shots; a three-stage collaborative rounding process of pre-grinding, impact grinding and fine grinding is set, firstly, a grinding plate which rotates in a steel shot box and is provided with a rough surface and a non-uniform grinding column is used for carrying out primary dispersion and corner angle grinding on steel shots, and primary regularization is achieved; the steel shots are subjected to strong and multi-angle impact grinding and efficient sharp edge removal by utilizing the impact block which rotates at a high speed and is provided with bulges on the surface, and finally, in the grading grinding cylinder, the lower grinding plate performs continuous fine grinding and rolling, so that the surface smoothness is ensured, and the geometric consistency and the surface quality of the steel shots are improved.

Magnesium silicate bottom layer-free high-magnetic-induction oriented silicon steel prepared by a laser process comprises the following components in percentage by weight: 0.015 to 0.095 percent of C, 2.50 to 4.50 percent of Si, 0.010 to 0.040 percent of Als, 0.0050 to 0.0100 percent of N, 0.010 to 1.00 percent of Mn, 0.0030 to 0.0300 percent of S, and at least any two of P, Cu, Sn, Sb, Cr and As, wherein the condition that (P + Cu + Sn + Sb + Cr + As) is less than or equal to 1.80 percent is met. The preparation method comprises the following steps: smelting, carrying out vacuum treatment and casting into a blank; heating the casting blank; hot rolling; performing coiling; normalizing is conducted; performing primary cold rolling; carrying out decarburization annealing; nitriding treatment is carried out; coating a conventional high-temperature annealing isolating agent which takes MgO as a main component; performing high-temperature annealing; uncoiling and carrying out laser treatment under a protective atmosphere; and stretching, flattening and annealing. The finished product is excellent in magnetic performance, the magnetic induction B800 is equal to 1.89-1.93 T, the iron loss P17 / 50 is equal to 1.25-1.45 W / kg, the stamping machinability and weldability of the finished product are excellent (no magnesium silicate bottom layer exists on the whole plate surface), the finished product has high magnetic induction performance, and the whole plate surface is smooth and clean (the smoothness of the plate surface can reach 100%).

The invention relates to the technical field of cerium-containing ultra-thin glass processing, in particular to a medicament for strengthening and thinning a cerium-containing ultra-thin glass cover plate and a preparation process thereof, which are used for solving the problems that the roughness is easy to increase and the surface smoothness does not reach the standard in the process of directly etching glass by traditional hydrofluoric acid, and if no strengthened glass cover plate exists, the glass cover plate cannot be thinned. The bending strength of the glass is obviously reduced, and the requirement on the bending strength cannot be met; meanwhile, hydrofluoric acid also causes direct contact harm to operators; the etching agent and the carbonization agent are used as agents to treat the cerium-containing ultra-thin glass cover plate, the etching agent can be used for etching and thinning the cerium-containing ultra-thin glass cover plate, the etching agent can react with fluoride to form a protective crystal nucleus layer, and the protective crystal nucleus layer is attached to the surface of the glass to form a protective layer; the bending performance of the cerium-containing ultra-thin glass cover plate is greatly improved, the protective layer can be thickened and strengthened through the coating formed by the carbonization agent, and the bending performance of the cerium-containing ultra-thin glass cover plate is further improved.

The present invention provides a slurry composition in which magnetic material powder has excellent dispersibility and excellent dispersion stability and which enables production of a sheet having high surface smoothness and high adhesiveness to substrates. Provided is a slurry composition containing: a polyvinyl acetal resin; magnetic material powder; and a Na ion, the slurry composition having a Na ion content of 1,000 to 3,000 μg / g relative to the polyvinyl acetal resin.

The invention discloses a high-performance fluorine-containing plastic processing aid. The aid comprises the following components in parts by mass: 90-100 parts of a resin matrix; 0.5 to 5 parts of a fluorine-containing polymer; 1-5 parts of a plasticizer; 0.5 to 3 parts of a lubricant; 0.05 to 0.2 part of an antioxidant; when the fluorine-containing plastic processing aid is added in plastic production, melt fracture can be effectively inhibited, the surface smoothness of a product can be improved, the dispersity of the aid and the compatibility of a matrix can be improved, the processing performance uniformity can be improved, the oxidation resistance of a material can be enhanced, the service life of the product can be prolonged, and the crystal structure can be improved; the mechanical property and the dimensional stability of the product are improved, and the forming processing energy consumption and cost can be obviously reduced.

The invention relates to the technical field of magnet yoke casting machining, in particular to an iron mold sand coating process production method of a nuclear magnet yoke casting and a demolding device. The method comprises the steps of 1, mold pretreatment; 2, sand-coated molding is carried out; 3, quality regulation and control; step 4, closing the mold and pouring; and 5, demolding and detecting. The sand scraping plate with the pressure feedback function is arranged, the compactness of sand is monitored in real time, the sand is vibrated through the multi-direction vibration auxiliary structure, the density distribution uniformity of all the positions of the sand is improved, and therefore the fitting degree of all the positions of the sand and a nuclear electromagnetic yoke casting is guaranteed, and the compactness of the nuclear electromagnetic yoke casting is improved. And the surface smoothness of the formed nuclear electromagnetic yoke casting is improved, so that the forming quality of the nuclear electromagnetic yoke casting is improved.

The utility model provides a single-ended hemispherical cylindrical hydrophone filling mould, which comprises a left half mould, a right half mould, a top cover and a bottom plate, the left half mould and the right half mould are buckled to form a mould cavity for forming a single-ended hemispherical cylindrical hydrophone, the mould cavity is communicated up and down, the top cover is fixedly connected on the left half mould and the right half mould at the upper end of the mould cavity, and the bottom plate is fixedly connected with the top cover. The bottom plate is fixedly connected to the left half die and the right half die at the lower end of the die cavity, the top cover is provided with an axially-through exhaust hole, the bottom plate is provided with an axially-through fixing hole, and the exhaust hole and the fixing hole are both communicated with the die cavity. The mold can improve the forming precision of the watertight layer of the hydrophone, reduce bubbles, improve the surface smoothness, reduce the demolding difficulty, improve the production efficiency, adapt to the forming requirements of products with unconventional shapes, save the research and development and manufacturing cost, and meanwhile, the mold is simple in overall structure and suitable for large-scale industrial production.

The utility model relates to the technical field of electromagnetic valves, in particular to a two-position three-way electromagnetic valve. In the prior art, small holes need to be machined in the end socket, the machining difficulty is high, the machining efficiency is low, and the surface smoothness is difficult to control. According to the two-position three-way electromagnetic valve, a movable core iron is further arranged in a sleeve, a first valve port and a second valve port are formed in a double-hole pole, a fixed sealing block is arranged on the core iron, the first valve port and the second valve port in the double-hole pole are sealed by the sealing block, and the sealing block is communicated with an inlet connecting pipe; a small valve seat is mounted on the single-hole pole, a single-pole hole is formed in the small valve seat, and the single-pole hole is communicated with a first outlet connecting pipe through a second transition hole and a first transition hole; the coil C is powered off, the core iron is separated from the single-hole pole, the sealing block closes the first valve port, and the inlet connecting pipe is communicated with the first outlet pipe; the coil C is electrified, the core iron is attracted with the single-hole pole, and the inlet connecting pipe is communicated with the second outlet connecting pipe. According to the utility model, the structure is reasonable, the flow maximization and the minimum pressure difference in the valve cavity can be realized, the processing difficulty of the product is reduced, and the core iron acts reliably.