32results about How to "Uniform surface quality" patented technology

The invention discloses a device for preparing a boron-doped diamond composite coating on the surface of a cutter, belonging to the technical field of cutters. The device comprises a reaction hood, an alloy drilling bit, a supporting table, a cooling device, a direct current voltage bias power supply, a heat wire power source, air pressure control device, a high-temperature resistant spring, a heat wire and a drilling bit bracket, wherein the alloy drilling bit and the high-temperature resistant spring are respectively and vertically arranged on the drilling bit bracket; two ends of the heat wire are respectively connected with the high-temperature resistant spring; the drilling bit bracket is fixed on the supporting table and the cooling device; the reaction device is fixed on the supporting table and the cooling device and the outer part of the drilling bit bracket is connected with the air pressure control device; the direct current voltage bias power source is respectively connected with the heat wire and the shell of the reaction hood; and the heat wire power source is respectively connected with the heat wire and the high-temperature resistant spring. The invention can ensure excellent adhesive strength between a diamond composite film and a matrix and can effectively improve the surface quality and the uniformity of the diamond film, thereby improving the service life and the cutting performance of the cutter with the diamond film coating.

The invention discloses a medium-high-voltage electronic aluminum foil for a high-capacity and high-strength capacitor and a preparation method thereof. Through the production modes of casting and a continuous air cushion furnace, the specific volume is increased, and the production period is shortened; and the continuous air cushion furnace is used for multiple times for homogenization and annealing, and the problem that a casting structure is not uniform is solved, so that the performance and the cubic texture are improved, and the medium-high-voltage high-purity aluminum foil for the high-capacity and high-strength capacitor is obtained.

The invention provides a production method of a zirconium and zirconium alloy strip coil. The production method comprises the steps that a zirconium or zirconium alloy strip blank is heated in a heating furnace before production and is rolled on a steekle mill or a tandem rolling unit to the thickness that the blank can be transferred to a cold mill to be rolled, and the blank is directly coiled; surface treatment is carried out on a hot-rolling zirconium coil obtained through rolling on a continuous annealing-shot blasting-acid pickling production line, and a zirconium strip obtained after surface treatment is a smooth and clean zirconium strip which is in the metal natural color and free of oxide skin or harmful air suction layers; then a cold mill unit is adopted for carrying out cold rolling on the zirconium strip to obtain a thin strip, and cold rolling is carried out after annealing is carried out in an on-line annealing or vacuum annealing manner in the process of cold rolling; and finally various finished zirconium or zirconium alloy thin strip products of target thickness are obtained in a rolled manner. According to the production method, the cost is low, the product quality is good, and the rate of the finished products is improved by more than 15%; the requirements of nuclear power, chemical engineering and other aspects for thin zirconium materials and zirconium strips for thin-wall zirconium pipe welding can be completely met; and energy saving and consumption reduction are achieved, and high practical value is achieved.

The invention discloses a cutting liquid as well as a preparation method and application thereof, belonging to the technical field of cutting liquids. The cutting liquid is prepared from the following raw material components in percentage by mass: 58-62% of coal oil, 9-11% of lard oil, 5-6% of span-80, 3-4% of petroleum sulfonate, 3-4% of fatty alcohol polyoxyethylene ether, 4-6% of nitrogen-contained borate ester, 0.8-1.2% of triethanolamine, 0.8-1.2% of phenol, 0.2-0.4% of benzotriazole, 0.1-0.3% of soybean oil and 9-11% of distilled water. When a large-diameter Fresnel lens die is processed by using the cutting liquid, a workpiece is uniform in surface quality and high in precision, the amplitude of a vibration signal is small during processing, and the sound emitting energy is low. The special cutting liquid plays roles of lubricating, cooling, resisting to abrasion, preventing rust, sterilizing, cleaning and workpiece surface film forming when used for processing the large-diameter Fresnel lens die, and is low in cost and free of pollution.

The invention relates to a nonblocking web plate of a high speed needle machine. The nonblocking web plate comprises a web plate body. A plurality of round needle holes are formed in the horizontal plane of the web plate body; the lower end of each round needle hole is provided with a sinking hole; and the aperture of each sinking hole is larger than the aperture of each round needle hole. The nonblocking web plate of the high speed needle machine is simply structure; meshes of the web plate cannot be blocked by fiber broken chips, so resistance to the needle is reduced and needle deformation can be avoided; and even fabric surface quality can be achieved.

The invention relates to the technical field of screw machining, and particularly discloses a pan head self-drilling screw and a machining method thereof. The machining method of the pan head self-drilling screw comprises the following steps that 1), a steel wire rod is subjected to wire drawing and annealing treatment, and then the steel wire rod is sequentially subjected to acid pickling and phosphating; the acid pickling comprises acid pickling by mixed acid A, water washing, drying and acid pickling by mixed acid B which are carried out in sequence, the mixed acid A is obtained by mixing hydrochloric acid and sulfuric acid, and the mixed acid B is obtained by mixing oxalic acid, lactic acid and water; phosphating is carried out by soaking in a phosphating solution, and the phosphating solution is obtained by mixing zinc dihydrogen phosphate and water according to the mass ratio of 5-8 to 100; 2), finish drawing, heading, tail clamping and thread rolling are carried out on the wire rod subjected to acid pickling and phosphating treatment to obtain a semi-finished product workpiece; and 3), preservative treatment is carried out on the obtained semi-finished product workpiece to obtain the pan head self-drilling screw. According to the machining method of the pan head self-drilling screw, the surface of the steel wire rod keeps good surface quality, and then the performance of the screw is improved.

The invention relates to a steel member laser rust removal device. The steel member laser rust removal device is characterized by comprising a propelling mechanism composed of a left rail and a right rail which are parallel to each other, and a portal frame connected to the propelling mechanism in a transmission mode; the propelling mechanism can drive the portal frame to move and stop on the left rail and the right rail at a specified speed; the steel member laser rust removal device further comprises a suspension arm which can be driven to do uniform motion along a cross beam of the portal frame at a specified speed, a suspension is fixedly connected below the suspension arm, and a working head is mounted on the suspension; and the working head comprises a square frame, the square frame is composed of four frame strips with the same length, the four frame strips are a rear frame strip, a front frame strip, a left frame strip and a right frame strip respectively, cameras are installed at the midpoints of the left frame strip and the right frame strip respectively, and illuminating lamp sets are installed below the left frame strip and the right frame strip correspondingly, so that the illuminance in the shooting range of the corresponding cameras is uniform.

The invention relates to the field of steel smelting, and relates to production and manufacturing of cold-rolled weathering steel for automobiles, in particular to 310MPa-grade cold-rolled low-cost weathering steel for an automobile and a preparation method of the 310MPa-grade cold-rolled low-cost weathering steel. The weathering steel comprises the following chemical components in percentage by weight: 0 to 0.09 percent of C, 0.10 to 0.40 percent of Si, 0.20 to 0.50 percent of Mn, 0.05 to 0.12 percent of P, 0 to 0.015 percent of S, 0.010 to 0.030 percent of Al, 0.2 to 0.4 percent of Cu and the balance of Fe and inevitable impurities. According to the 310MPa-grade cold-rolled low-cost weathering steel for the automobile and the preparation method of the 310MPa-grade cold-rolled low-cost weathering steel, measures of controlling hot rolling in-furnace time, dephosphorization high-pressure water pressure, rough rolling temperature and the like are emphatically adopted, and the occurrence probability and degree of Cu brittleness and iron oxide scale are reduced. The steel has the advantages of being low in cost, excellent in surface quality, good in machining forming performance and atmospheric corrosion resistance and the like, and can be applied to industries such as automobiles and household appliances which have requirements for corrosion resistance.

According to the automatic polishing device and method for the sapphire of the special-shaped structure, by means of the extrusion effect of a grinding head, grinding paste generates the micro-cutting effect on micro protrusions on all the surfaces of the sapphire of the special-shaped structure, and materials are removed. The device comprises a polishing system, a precise displacement system, a clamping system and a clamping system. The polishing system can accurately adjust the position and the angle of a grinding head, and the polishing requirement of a complex structure is met; the precise displacement system can drive the clamping system and the workpiece to move in the horizontal plane, displacement can be adjusted according to polishing force data collected by the polishing system, the polishing force is constant, and the machining quality is uniform. The clamping system is responsible for positioning and clamping a workpiece, and different clamps are selected according to the structural characteristics of the sapphire with the special-shaped structure; the clamping system can achieve work such as disassembly, assembly and turn-over of the workpiece. The sapphire polishing device is uniform in machining quality, wide in application range, high in automation degree, small in environmental pollution and capable of achieving high-quality polishing of various complex structures of the sapphire of the special-shaped structure.

The invention discloses diamond grinding and polishing integrated machining equipment and a machining method thereof. The machining equipment comprises a rack, a base device and a grinding and polishing device. The base device comprises a sliding seat capable of feeding along a Y axis and a base capable of being connected to the sliding seat in a rotating mode around a Z axis, and a clamp capable of clamping diamond is arranged on the base. The grinding and polishing device comprises a main shaft arranged along the Z axis, an inner ring grinding wheel and an outer ring polishing wheel sleeve the main shaft, the outer ring polishing wheel surrounds the inner ring grinding wheel, the main shaft rotates to drive the inner ring grinding wheel and the outer ring polishing wheel to rotate together, and the vertical position relation of the inner ring grinding wheel and the outer ring polishing wheel along the Z axis can be adjusted. The diamond on the clamp is ground and polished through rotation of the inner ring grinding wheel and the outer ring polishing wheel, feeding of the sliding seat and rotation of the base. The diamond grinding and polishing integrated machining equipment and the machining method thereof have the following advantages that diamond grinding and polishing are integrated into one procedure for machining, scratches and damage to the surface of the diamond are small, and the surface quality is uniform.

The ceramic printer comprises a rack, a bottom plate, a first mounting base plate, a second mounting base plate and a top plate are sequentially arranged on the rack from bottom to top, and a slurry tank and a scraper device used for scraping tiled materials are mounted on the first mounting base plate; a material supplementing device capable of continuously supplementing ceramic slurry for the slurry tank is installed on the bottom plate, a lifting plate is vertically arranged in the rack, a printing platform capable of stretching into the slurry tank is arranged on the lower portion of the lifting plate, a lifting motor is arranged on the top of the lifting plate, and a laser source installed on the second installation base plate is arranged over the printing platform. The ceramic printer is simple in structure, the sinking type printing platform is adopted in the technological method, the ceramic slurry is fully immersed in the slurry tank for dipping, and then the scraper device and the material supplementing device are matched, so that the surface quality of a ceramic formed part is uniform, forming is easy, the using effect is good, and application and popularization are convenient.

The invention discloses a rotating bending fatigue sample V-shaped notch abrasive flow grinding device and process, the rotating bending fatigue sample V-shaped notch abrasive flow grinding device comprises a cylindrical clamp, the cylindrical clamp comprises a first clamp body and a second clamp body which are connected through a hinge shaft, and a locking device used for tightly attaching the first clamp body and the second clamp body is installed on the cylindrical clamp. A cavity matched with a part to be machined in shape is formed in the cylindrical clamp, a first channel communicated with the cavity is formed in the bottom of one side of the first clamp body in the direction perpendicular to the axis of the first clamp body, and a second channel communicated with the cavity is formed in the top of one side of the second clamp body in the direction perpendicular to the axis of the second clamp body. The abrasive material flows through the to-be-machined part in the axial direction, machining textures in the axial direction can be left on the surface of the to-be-machined part, the machining texture direction on the surface of the to-be-machined part is perpendicular to the fatigue stress sensitive direction of the part, and the service life of the part can be greatly prolonged.