127results about How to "Convenient finishing" patented technology

The invention discloses a fixture which is used for grinding a spherical gasket and is characterized in that the fixture comprises a flange and a clamp head which are fixedly connected; the clamp head has a same spherical arc surface as the spherical gasket, and the inside of the clamp head is provided with an electromagnetic coil. The fixture can fast clamp and fix a plurality of spherical gaskets, and is convenient for the processing device to finely process the spherical gasket with high efficiency. The accuracy and the surface smoothness of the spherical gasket are greatly increased without greatly increasing the processing cost..

The invention discloses a graphene-based coating agent. The graphene-based coating agent comprises, 0.1-1 part of nano-graphite, 1-3 parts of a graphene dispersing agent, 2-10 parts of fluorine-bearing acid, 2-10 parts of fluorine-bearing acid salt, 1-2 parts of a silane coupling agent, 2-5 parts of a complexing agent, 0-2 parts of a surface wetting agent and 70-95 parts of water. The graphene-based coating agent has the advantages of short film forming time, good film forming property and environment friendliness. An inorganic film formed on the surface of metal through the graphene-based coating agent has excellent lubricity and corrosion resistance and is thin. The formed inorganic nanofilm has excellent conductivity, lubricating property and corrosion resistance and has higher corrosion resistance and longer salt mist time, and therefore corrosion resistance of a metal substrate is better improved, surface impedance of the metal is not influenced after the film is formed, and finish machining of the metal is better facilitated.

The invention discloses track shoe pin hole machining equipment. The track shoe pin hole machining equipment comprises a base, and a clamping mechanism, a machining mechanism and a feeding mechanism mounted on the base. The clamping mechanism is used for clamping track shoes and keeping the track shoes in the machining direction, the machining mechanism is used for machining pin holes, the feeding mechanism is used for enabling the clamping mechanism and the machining mechanism to move relatively after the track shoes are kept in the machining direction, and the machining mechanism machines the pin holes in the track shoes kept in the machining direction in the process of relative movement of the clamping mechanism and the machining mechanism. The track shoe pin hole machining equipment is specially used for machining the pin holes of the track shoes, the track shoes are kept in the machining direction through the clamping mechanism according to the unique structural design of the track shoes, then the pin holes of the track shoes kept in the machining direction are subjected to finish machining through the machining mechanism, and machining efficiency and effect can be improved effectively.

Disclosed is an active energy ray-curable coating composition which is characterized by comprising: (a1) an acrylic acid ester of a non-cyclic oligosaccharide or a derivative thereof, which has an weight average molecular weight of 400 to 2,000 and contains 3.0 to 12.0 acryloyl groups on average per molecule; and (a2) a photopolymerization initiator. The active energy ray-curable coating composition is a bio-derived active energy ray-curable coating composition, and can form a coating film having excellent finished appearance, pencil hardness, scratch resistance, weather resistance and solvent resistance.

The purpose of the invention is to provide a pigment dispersing paste capable of saving energy of coating apparatus and saving redispersibility of dye of the apparatus and electrophoretic paint. Specifically, the invention relates to a pigment dispersing paste for electrophoretic paint, containing pigment dispersing resin (A), tinting color (B), color filler (C) and cellulose composition (D); responding to the solid component 100 weight parts of the resin (A), the paste is characterized by containing: (1) 60 to 800 weight parts of (b1) titanium dioxide coated by 0.1 to 10.0 weight parts of Al2O3 without SiO2 on 100 weight parts of titanium dioxide as matrix; and/or (b2) ferric oxide as the of tinting color (B); (2) 2 to 200 weight parts of micro barium sulfate with the mean grain size of linear particle being 0.01 to 0.1 micron as the color filler (C); and (3) 1 to 50 weight parts of cellulose composition (D).

The present invention addresses the problem of providing a cationic electrodeposition coating having excellent covering power (clearance application properties), edge anticorrosion properties, and finish properties. The present invention provides a cationic electrodeposition coating composition comprising: a specific amino-group-containing epoxy resin (A); blocked polyisocyanate (B) obtained by reacting an active hydrogen-containing component containing propylene glycol, and a polyisocyanate compound; and 0.1-20 mass parts of a cationic electrodepositing gelled microparticulate polymer (C) obtained by crosslinking an acrylic copolymer containing hydrolyzable alkoxysilane groups and cationic groups, per a total of 100 mass parts of the solids fraction of the amino-group-containing epoxy resin (A) and the blocked polyisocyanate compound (B).

The invention relates to a peanut finishing classification screening machine and a screening method thereof. The machine comprises a base plate, a feeding device, a screening device and a sorting device; the screening device is mounted on the left side of the upper end of the base plate; the feeding device is arranged on the left side of the upper end of the screening device; the sorting device ismounted on the right side of the upper end of the base plate; and the sorting device is positioned on the right side of the screening device. The machine can solve the difficulties of weak screeningeffect during screening of peanuts by a traditional peanut screening machine, incapability of accurately classifying the peanuts, incapability of singly separating out broken peanuts, easy blockage ofelliptic peanuts on a screening plate during screening and influence on the screening effect, can achieve a function of automatically classifying and screening the peanuts, is excellent in screeningeffect, can accurately classify the peanuts, meanwhile, can singly separate out the peanuts broken to pieces, can prevent the peanuts from blocking the screening plate, and achieves excellent screening effect.

The invention discloses a high-precision radiating grinding wheel, and relates to the field of industrial machinery. The high-precision radiating grinding wheel comprises a circular disc body which is divided into three layers, namely, a base layer, a heat transfer layer and a grinding layer which are sequentially arranged, wherein the base layer is prepared from aluminum alloy; the heat transfer layer is prepared from graphite; the grinding layer is prepared from microcrystalline fused alumina; a threaded hole is formed in the center of the circular disc body. The high-precision radiating grinding wheel has the advantage that the problems of the requirement on the processing precision of the grinding wheel, the radiating during processing, and the safety of connection of the grinding wheel and a grinding wheel can be solved.

The invention discloses a device for finish machining of a mechanical part. The device comprises a machine platform and a base plate. A part horizontal moving device is movably connected in a groove formed in the middle of the top of the machine platform. The two sides of the top of the machine platform are provided with vertical moving devices to be connected with the base plate. A motor is arranged in a noise reduction box connected to the middle of the top of the base plate. A rotating shaft, an auxiliary shaft and a connecting shaft are located in the noise reduction box and correspondingly arranged in the middle of the top of the base plate in a penetrating mode. According to the device for finish machining of the mechanical part, vertical moving of a polishing column and a drill bit and horizontal moving of a part supporting plate can be achieved , so that accurate positioning machining of the mechanical part is achieved, the effect of part finishing machining is improved, additionally, the stability of the whole device when the device is used can be improved greatly, and the finish machining effect and the finishing machining efficiency of the mechanical part are improved.

The invention provides a tea screening and drying finish processing device. The tea screening and drying finish processing device comprises a processing box; a fixed feed port is welded to the middlepart of the upper surface of the processing box; a material guide plate is arranged below the feed port; a magnetic plate is arranged below the left side of the material guide plate; a secondary screening net plate is arranged below a primary screening net plate; the left end of the secondary screening net plate and the left end of the primary screening net plate are fixed to a transmission plate,and the transmission plate is inlaid in the inner wall of the left side of the processing box; a transmission rod is fixed to the left end of the transmission plate and is leftwards connected into ascreening box; transmission hinges are arranged at the end part of the transmission rod; a partition plate is vertically welded to the inner upper wall and the inner lower wall of the middle part of the processing box; material guiding ports are formed in the positions below the secondary screening net plate and the primary screening net plate separately; a drying box is welded to the right uppercorner of the processing box; and a drying resistance wire is arranged in the drying box. The tea screening and drying finish processing device has the advantages of being simple and convenient to useand operate, capable of carrying out screening and drying simultaneously, good in finish processing effect and high in practicability.

The invention discloses a manufacturing surface finishing clamp for a water pump impeller, and relates to the technical field of clamp clamping. The manufacturing surface finishing clamp comprises a workbench, the top end of the workbench is arranged as a horizontal table top, a plurality of disc-shaped positioning tables are arranged on the table top of the workbench, a disc-shaped positioning boss is arranged at the circle center position of the top end of each positioning table, a guide rod upright on the corresponding table top is arranged at the top end of each positioning boss, a plurality of sliding grooves are formed in the outer wall, adjacent to the top end of the corresponding positioning boss, of each guide rod, and an ejector rod receding hole is formed in the inner wall of each guide rod. According to the manufacturing surface finishing clamp for the water pump impeller, the guide rods are arranged at the top ends of the positioning tables, the center hole of the water pump impeller sleeves the guide rods, a plurality of outer clamping jaws are arranged on the outer ring of each positioning table at equal intervals, and the water pump impeller can be subjected to outside clamping through clamping of the outer clamping jaws. The inner ring of the water pump impeller is convenient to finish and grind.

The present invention provides a multi-component aqueous primer coating composition and a coating method thereof which can form a coating film primer which is excellent in adhesion, particularly water-resistant adhesion. The multi-component aqueous primer coating composition which is a multi-component aqueous primer coating composition comprises a main component (I) and a curing agent component (II), wherein the main component (I) a hydroxyl group-containing acrylic resin (A) and a pigment (B) having a hydroxyl value in the range of 15 to 180 mgKOH/g and a glass transition temperature of 30 to70 DEG C, and the curing agent component (II) contains the polyisocyanate compound (C) having a content of 10% by mass or more of an isocyanate group, the main component (I) and/or the curing agent (II) component contains a silane coupling agent (D), and the content of the component (D) is a curing agent component (the mass of II) is in the range of 0.01 to 10% by mass.

To provide a block copolymer for adhesive that has a good finish, and an adhesive composition that has an excellent adhesive property and a good performance balance, and further an excellent solubility and coatability. [Solution] A block copolymer for adhesive, containing at least two polymer blocks of vinyl aromatic monomer unit (A) and at least one polymer block (B) containing conjugated diene monomer unit as a main component, wherein the amount (% by mass) of polymer blocks of vinyl aromatic monomer unit in the polymer block of vinyl aromatic monomer unit (A) is 95.0 to 99.0% relative to the total amount of vinyl aromatic monomer unit (% by mass) that has been used for polymerizing the polymer block of vinyl aromatic monomer unit (A), and the block copolymer for adhesive selectively contains block copolymer components (a) to (d); that have a specific structure provided with the polymer blocks (A) and (B).

The invention provides a multilayer coating film forming method. The invention provides a coating article through wet-on-wet coating, which has excellent finish machining performance, anti-corrosion property, weather fastness and cracking resistance, and low coating glossiness difference caused by burning and fixing. The multilayer coating film forming method forms an uncured coating employing a primer coating compound (A) on a coated subject, forms a finishing coat coating employing a specific finishing coat coating compound (B) on the uncured coating, and simultaneously dries the two coatings, wherein the primer coating compound (A) includes epoxy resin (a1), and 1-70 parts by mass of a rust resisting pigment (a2), 40-150 parts by mass of a tinting pigment (a3) and 40-150 parts by mass of a filler pigment (a4) employing 100 parts by mass of solid components of the epoxy resin (a1) as a standard; the total weight of the solid components of the epoxy resin (a1) is 100g; the total oil absorption of the rust resisting pigment (a2), the tinting pigment (a3) and the filler pigment (a4) is 16-50 ml.

A preparation method for an Al2O3 dispersion strengthened copper-based oil bearing comprises the steps that Al2O3 dispersion copper alloy powder and tin powder are mixed proportionally and evenly; mixed powder is subjected to diffusion alloying treatment, and Al2O3 dispersion strengthened copper-tin diffusion alloying powder is obtained after crushing, screening and blending; the obtained diffusion alloying powder is subjected to die forming, and a bearing green body is prepared; and the obtained bearing green body is sintered and then subjected to oil immersion and finishing, and the Al2O3 dispersion strengthened copper-based oil bearing is obtained. The dispersion strengthened copper-based oil bearing prepared through the method has the good strength, hardness and precision, the defects that existing bronze oil bearings are low in strength, poor in abrasion resistance, low in precision and the like commonly are overcome, and the method is suitable for scale production.

The invention discloses a surface machining method for an obtrusive hollow cylinder and a ball end mill, in particular to the machining method and the ball end mill which use an ordinary three-shaft vertical machine, and can reduce clamping frequency, improve machining efficiency and machining stability. The machining method comprises course machining and fine machining, wherein the fine machining comprises the following steps: 1, semifinishing a round groove, a cylindrical face and a circular truncated cone curved face by a T-shaped milling cutter, wherein the unilateral margins of the round groove and the cylindrical face are both 0.15 mm, and the machining margin of the circular truncated cone curved face is 0.12 mm; 2, finishing the round groove, the cylindrical face and the circular truncated cone curved face by the T-shaped milling cutter, wherein the parameters of the T-shaped milling cutter are the same as the parameters in step 1, the margins for machining the round groove and the cylindrical face are 0 mm, namely, machining is in place, and the unilateral margin of the circular truncated cone curved face is 0.08 mm; 3, finishing the circular truncated cone curved face by adopting the specially made ball end mill, wherein the smallest cutting length is 0.1 mm. For the specially made ball end mill, the diameter of the cutter bar is smaller than that of the bulb. The machining quality of a part is ensured by the method and use of the ball end mill.

A method of forming a multilayered coating film which comprises: a step in which a starch-based colored base coating material containing a starch-based resin is applied to a work to be coated to form a coating film; a step in which a photocurable coating material (B) comprising a photocurable compound and/or photocurable resin (b1), a photopolymerization initiator (b2), and a starch-based resin (b3) is applied to that coating film to form a coating film; and a step in which the coating film of the photocurable coating material (B) is irradiated with light to cure this coating film. As the photocurable coating material (A) or (B) is used a coating material based on a starch derived from a vegetable. This method can form a multilayered coating film excellent in finish, pencil hardness, marring resistance, adhesion, alkali resistance, and solvent resistance.

The invention relates to a high-speed permanent magnet motor rotor structure. Radial bolt holes and axial ventilation holes are formed in a rotor, wherein the radial bolt holes are communicated with the axial ventilation holes; a permanent magnet block and a magnetic pole interval are fixedly arranged on the rotor through bolts; and jackets are thermally sheathed outside the permanent magnet block and the magnetic pole interval on the rotor and are made of titanium alloy or high-strength metal, and the jackets are retracted and then are tightly hooped on the rotor. According to the high-speed permanent magnet motor rotor structure disclosed by the invention, a permanent magnet is fixed by adopting the bolts, the problem of mutual exclusion between a partitioning block and the permanent magnet in the matching process of the thermal sheathing is solved and the work difficulty during thermal sheathing of a permanent magnet motor is reduced; after the permanent magnet is fixed by the bolts, the finish machining of the surface can be conveniently carried out and the heating temperature of the jackets during thermal sleeving is reduced; after the jacks are assembled, the bolts can be unscrewed; bolt holes can be used as the radial ventilation holes; the radial ventilation holes and the axial ventilation holes form a ventilating and cooling system of the rotor; and the bolts are finally unscrewed, and thus the problem of stress concentration caused by the bolts is solved.

The invention discloses a device for removing sand on a casting blank conveniently and relates to the technical field of mechanical equipment. The device for removing the sand on the casting blank conveniently comprises a handle. A shell is connected to one side of the handle in a clamped mode, and a fixed block is fixedly connected to the bottom of the inner wall of the shell. A first motor is fixedly connected to the top of the fixed block, and an output shaft of the first motor is fixedly connected with a first belt wheel. The surface of the first belt wheel is in transmission connection with a second belt wheel through a belt, a cam is fixedly connected to the back side of the second belt wheel, and a push rod is arranged on one side of the cam. The end, away from the cam, of the pushing rod penetrates through the shell and extends out of the shell. The end, located outside the shell, of the push rod is fixedly connected with a fixed box. By adoption of the device for removing the sand on the casting blank, sand blocks on the inner wall of a casting can be polished away easily, sand blocks located at corners of the casting can be knocked down, and time and labor are saved; and the sand removing effect is good, and finish machining can be conducted conveniently.

The invention is about the production line of the hollow chopsticks by drawing stainless steel round pipe. The pipe with 0.33mm of thickness is transferred into a spin-forging machine to form the taper round pipe which is annealed to remove the material stress by industrial electrical furnace. The pipe is washed by acid to remove oxide skin and to become bright. The big head of the pipe is pressed by the four-wheel extruder to become the taper square pipe and refined by the horizontal punching machine. The small round head is annealed partially and sealed by rolling spinning. The tetraquetrous taper square cap is punched by a vertical punching module and welded by the resistance welding. At last the chopsticks are polished and carved with calligraphy and painting.

The invention provides an antirust agent composition and an antirust method using the same. The antirust agent composition comprises a aliphatic carboxylic acid represented by general formula (1), and a aromatic carboxylic acid represented by general formula (2), and is formed by using organic base through adjustment in the way of changing pH to be in the range of 5 to 10, and can be used both for ferrous metal raw materials and non-ferrous metal raw materials. The antirust performance and finish machining performance are excellent, and an antirust method can be provided by using the antirust agent composition. R1-(COOH)n (1), in the formula (1), R1 represents an alkyl group in the form of a straight chain or branches which acts as an alkyl group, an alkenyl group or an alkanol group with the carbon number being 1 to 17, and n represents a number of 1 to 3. R2-(COOH)n (2), in the formula (2), R2 represents an aromatic alkyl group, and n represents a number of 1 to 3.