34results about How to "No trimming required" patented technology

The invention discloses a gas guiding plate, a preparation method and a curing molding method of a stiffened wall plate comprising the gas guiding plate and belongs to the technical field of composite molding. The preparation method of the gas guiding plate includes the steps that a blank gas guiding plate is manufactured through a hard porous material, and holes matched with the bottom faces of ribs in shape are formed in the blank gas guiding plate; and blind holes are formed in the blank gas guiding plate, and the gas guiding plate is obtained. The hard porous material can disengage after the stiffened wall plate is overall molded, and no scrap edge needs to be machined on the edges of the ribs.

The invention discloses a method for processing the inner spherical surface of a bearing seat through motion forming. The inner spherical surface of the bearing seat is ground with a diamond grinding wheel, which can be used for a long time without shaping and grinding, because the processing method of the present invention is formed by a motion The method of grinding the inner spherical surface adopts three numerical control feeding steps of diamond grinding wheel spherical center feeding, bearing seat spherical center feeding and diamond grinding wheel spherical diameter feeding, and uses the compound rotation circle of the bearing seat and the rotation circle of the diamond grinding wheel to form The ball is used to complete the grinding of the inner spherical surface of the bearing seat. The invention discloses a method for processing the inner spherical surface of the bearing seat through motion forming, without the need of correcting the grinding wheel, the grinding wheel has a long service life, and the processing accuracy and efficiency are high.

The invention relates to a roller type electric needle moving device, and belongs to the carpet machinery field. The roller type electric needle moving device includes: a gear motor, a roller, and a frame, and is characterized in that the gear motor is arranged on the frame and the gear motor is connected with the roller. The motor drives the roller to match an operation speed with a needle speed so as to realize automatic moving. Needle steps are uniform and a carpet surface is flat without worker finishing.

The invention discloses a preparation method of a shadow-carving ceramic product, comprising the following technological steps: (1)making of a model: by a 3D Feifang making technology, a product model is drawn on a computer with the application of a shadow-carving technology, and the product model is printed by a 3D printing technology; (2) making of a mould: the mould is made according to the shape of the product model; mould testing and mould repairing: error-eliminating mould repairing is carried out on the mould according to the quality of a product made by the use of the mould; (4) making of porcelain clay; (5) moulding to prepare a ceramic blank; and (6) sintering: sintering temperature is 1220 DEG C-1350 DEG C, and sintering time is 10-15 h. The preparation method has simple technological processes, and the ceramic product prepared by the preparation method has good transmittance and stereoscopic effects.

The invention describes a method and a system for producing hybrid composite parts,. Disclosed is a mould body provided with a mould cavity that has at least one male and one female portion. In this cavity, a fiber preform is placed, being located in at least one area of the mould cavity and leaving free at least other area of the mould cavity. This mould body, also, is at the polymerization temperature of a reactive thermoplastic precursor. After placing the preform into the mould cavity, the mould body is closed. At this point, the reactive thermoplastic precursor is injected into the mould cavity. When the mould cavity is completely filled and the reactive thermoplastic precursor polymerized, the resulting hybrid composite part is demoulded.

The invention discloses a diamond grinding and polishing method; while the surfaces of diamond particles are ground and polished by the high-speed rotation of a grinding plate, a clamping device for clamping the diamond particles is driven by a driving device to rotate by means of the vertical line of the grinding and polishing surface of the grinding plate as an axis. With adoption of the technical scheme in the diamond grinding and polishing method, a plurality of diamond particles are rotated for 360 degrees around the vertical line of the grinding and polishing surface of the grinding plate, so that the grinding plate is capable of grinding the diamond particles in each crystal orientation; on one hand, the step of determining the grinding crystal orientations of the diamond particles in the prior art is omitted and the working efficiency is improved effectively; on the other hand, the uniform consumption of the grinding plate can be maintained, so that the service life of the tool is prolonged without repairing.

The invention discloses a milling and polishing machine. The milling and polishing machine comprises a milling disc unit arranged on a rack, and a clamping unit arranged opposite to the milling and polishing face of a milling disc in the milling disc unit. The clamping unit comprises a clamping part used for clamping a work-piece to be machined, and a drive part which drives the clamping part to rotate with the vertical line of the milling and polishing face of the milling disc as the axis. By the adoption of the technical scheme, the milling and polishing machine enables diamond particles to rotate around the vertical line of the milling and polishing face of the milling disc by 360 degrees in the milling and polishing process so that the milling disc can mill the diamond particles in all crystal orientations, on one hand, the step of needing to determine the milling crystal orientations of the diamond particles in the prior art is omitted, and the working efficiency is effectively improved; on the other hand, uniform consumption of the milling disc can be kept, finishing is not needed, and the service life of the milling and polishing machine is prolonged.

The invention discloses a quartz glass slicer, comprising a body, wherein a slide rail seat in which a slide rail is formed is fixed on the body, a slide carriage is arranged in the slide rail seat, a crank-link mechanism is arranged at one end of the slide rail seat, a drive motor is arranged on one side of the upper part of the body, a crankshaft of the crank-link mechanism penetrates through the slide rail seat and is in driving connection with the drive motor, the free end of a link of the crank-link mechanism is hinged on the middle part of one end of the slide carriage, and a tool rest and a saw blade are fixed in front of the slide carriage; and a lifting platform 15 is arranged in front of the body and below the slide rail seat and is supported on a base in front of the body through a height adjusting device. The quartz glass slicer has the beneficial effects that the quartz glass slicer is reasonable in structure and convenient to use, can be used for slicing large-sized quartz glass plates, is high in automation degree, labor-saving and time-saving and greatly reduces the labor intensity of workers; and the cut quartz glass plates have good section straightness and good finish degree and do not need to be trimmed, so that quartz glass raw materials can be saved, waste can be reduced and the manufacturing cost can be reduced.

The invention relates to the technical field of cold rolling and pickling line, in particular to a welding equipment and a welding process for a plastic pickling groove . The welding equipment is composed of a worktable, rails, a walking trolley, a machine base on the trolley, a horizontal sliding mechanism, an adjustment screw, a slant sliding mechanism and a welding device. The welding device iscomposed of a motor, a reduction gear, an auger delivery device, a heater and a welding head. The welding process comprises the following steps: the adjustment screw adjusts the degree of inclinationof the slant sliding mechanism, welding material is added into a feed hopper, the power supply of the heater is powered on, the temperature of each heating zone of a machine barrel is respectively controlled in the range as a first zone below 190 DEG C, a second zone below 230 DEG C, and a third zone below 280 DEG C, and the moving speed is controlled to be 0.05-0.08 m / s. The invention has the advantages that the welding quality is improved, and the weld seam factor can reach above 0.9; the equipment is convenient to install and maintenance free, and has long service life. The weld seam is formed in one time, no repeated factory build-up welding is required; the weld seam is free from pore, undercut and over burning, with smooth surface and graceful form, needs no dressing, and is corrosion and ageing resistant.

The invention belongs to the field of carpet machinery and relates to a device for stitch adjustment of an upper slider. The device comprises the slider, an angle adjusting sheet, a small shaft, a needle, a spring, an adjusting screw and a slide way and is characterized in that the angle adjusting sheet is connected with the small shaft which is arranged on the slider, the needle is arranged on the angle adjusting sheet, the spring is arranged between the slider and the angle adjusting sheet, the adjusting screw penetrates the slider and the spring to be connected with the angle adjusting sheet, and the slider is arranged on the slide way. Automatic stitching is realized by needle angle adjustment, and stitch uniformity, carpet surface smoothness and freeness of manual trimming are realized.

The invention discloses a high-speed diamond grinding wheel. The high-speed diamond grinding wheel comprises a substrate and a grinding block. The grinding block covers the substrate and is composed of, by mass, 37-55% of a diamond grinding material, 30-45% of corundum and 18-30% of a ceramic bond. Raw materials of the ceramic bond comprise, by weight, 40-45% of SiO2, 10-15% of Al2O3, 18-20% of B2O3, 9-10% of Li2O, 7-8% of Na2O and 7-9% of K2O. The firing temperature of the bond is 750-820 DEG C, the pullout strength to the grinding material is high, damage of adopted diamond is greatly reduced under the designed technological system, and the grinding wheel does not need to be trimmed in the grinding process.

The invention belongs to the field of welding materials, in particular to a highly-antiwear drill pipe wear-resisting belt flux-cored wire. With the development of the petroleum drilling technology, the abrasion of casing pipes is more and more prominent. The wear of the casing pipes may reduce the collapse pressure strength and internal pressure strength of casing strings, and more seriously, cause to the collapsing, deformation and leakage of the casing strings and even scrapping of a whole well. The invention provides a highly-antiwear drill pipe wear-resisting belt flux-cored wire, which comprises the following deposited metal chemical components in percentage by mass: 15.0 to 16.0 percent of Cr, 5.5 to 6.0 percent of Mo, 3.5 to 4.0 percent of W, 0.9 to 1.1 percent of Y, 0.7 to 0.9 percent of C, 3.5 to 4.5 percent of B, 1.5 to 2.0 percent of Si, 0.8 to 1.0 percent of Mn and the balance of Fe. Compared with the friction coefficient of the ordinary welding wire, the friction coefficient of the highly-antiwear drill pipe wear-resisting belt flux-cored wire is reduced by 24 percent, and the abrasion of the casing pipes is reduced by 62 percent substantially; and the manufacturability is good. By the highly-antiwear drill pipe wear-resisting belt flux-cored wire, the abrasion of the casing pipes in drilling wells can be reduced substantially; and the highly-antiwear drill pipe wear-resisting belt flux-cored wire can be widely applied to the wear prevention and wear resistance of sliding friction dual components under other harsh operating conditions besides the highly-antiwear drill pipe wear-resisting belt flux-cored wire can be used for overlaying metal wear-resisting belts on petroleum drilling pipes.

The invention belongs to the field of grinding tools, and discloses a diamond grinding wheel and a preparation method thereof. The diamond grinding wheel comprises a base body and an abrasion block, and a raw material of the abrasion block contains a ceramic binding agent made of the follow raw materials: SiO2 of 40-46wt%, Al2O3 of 8-13%, B2O3 of 18-22%, Na2O of 8-10%, CaF2 of 11-15 wt%, Li2O of 4-6wt% and TiO2 of 1-2wt%. The diamond grinding wheel can effectively improve processing efficiency of gorilla glass, reduce processing cost, reduce pollution to environment, and meets the requirements for grinding and processing the gorilla glass. In addition, according to the diamond grinding wheel, firing temperature of a binding agent is low, holding force on an abrasion material is strong, damage on diamond is greatly reduced under a process system, and the grinding wheel does not need to be repaired in the grinding process.

The invention discloses a gas guiding plate, a preparation method and a curing molding method of a stiffened wall plate comprising the gas guiding plate and belongs to the technical field of composite molding. The preparation method of the gas guiding plate includes the steps that a blank gas guiding plate is manufactured through a hard porous material, and holes matched with the bottom faces of ribs in shape are formed in the blank gas guiding plate; and blind holes are formed in the blank gas guiding plate, and the gas guiding plate is obtained. The hard porous material can disengage after the stiffened wall plate is overall molded, and no scrap edge needs to be machined on the edges of the ribs.

The invention relates to a preparation method of a grinding wheel applied to coaxiality grinding of a ceramic ferrule, and belongs to the technical field of ultra-precision machining of optical fiberconnecting material. The u preparation method comprises the following steps of 1, a diluted modified phenolic resin solution, a zirconium oxide hollow microsphere and calcium fluoride are added into ethyl acetate, and are stirred for 1 -3 hours at the temperature of 50-90 DEG C a sodium chloride solution is added, a mixture is heated for 45-90 minutes for at the temperature of 75-85 DEG C, a blockmixture is obtained, then modified polyimide resin is added, ball milling is carried out, and sieving is carried out to obtain a binding agent; 2, diamond and the binding agent prepared in the step 1are weighted according to the mass ratio of 1 to 3-8, sieving is carried out, pressing is carried out at the temperature of 280 DEG C with the pressure of 5 MPa to 15 MPa, the pressure maintaining time is 30-80 minutes, so that a grinding layer is obtained; 3, the grinding layer is bonded to fluorosilicone rubber, the fluorosilicone rubber is adhered to a grinding wheel base body to obtain a grinding wheel semi-finished product; and 4, feeding hole and the discharging hole chamfering of the semi-finished grinding wheel is carried out to obtain a finished product.

The invention discloses a film pasting process of a door plate. The film pasting process of the door plate comprises the following steps that S1, the temperature of the surface on which a die is to bepasted with a film is controlled at 15-75 DEG C, the middle part is lower in temperature, and the peripheral part is higher in temperature; S2, the film is electrostatically adsorbed on the surface on which the die is to be pasted with the film; S3, an injection molding machine is divided into a front section and a back section, an injection solution is injected into the die from the middle partof the die, the speed of injection of the front section is 10%-25% of the rated speed, the injection quantity is 20%-40% of the total material quantity, and the temperature of the injection solution is 170-200 DEG C; and the speed of injection of the back section is 45%-75% of the rated speed, the injection quantity is 60%-80% of the total material quantity, and the injection solution temperatureis 200-230 DEG C; and S4, after the injection solution is cooled and molded, the die is removed, and a finished product is taken out. According to the film pasting process of the door plate, the appearance and the color of the film are more easily to control, the surface of the product is diversified, and the prepared door plate with the pasted film is not required to be trimmed and is abrasion-resisting.

The invention discloses a heating stamping and riveting process for a gear gearbox. The heating stamping and riveting process comprises the following steps that a, integration blanking, punching and edge deburring are conducted to obtain a first semi-finished product; b, heating stamping and flanging are conducted, specifically, a heated flanging die stamps the heated first semi-finished product to enable the first semi-finished product to be provided with turned edges to obtain a second semi-finished product; and c, gear shafts are riveted, the second semi-finished product is subjected to heat preservation control, a riveting clamp clamps the gear shafts and heats the riveting parts of the gear shafts, the riveting clamp enables the heated gear shafts to be embedded into the second semi-finished product, and a riveting die enables the riveting parts of the gear shafts and the second semi-finished product to be connected in a pressed mode to obtain a third semi-finished product. Blanking, punching and deburring are finished through integration stamping, the steps are simplified, the machining accuracy of bending and gear shaft riveting is improved, the riveting parts of the gear shafts do not protrude out of the gearbox surface, thus dressing is not needed, and the riveting strength is high.