35results about How to "Good corrosion resistance and wear resistance" patented technology

The invention provides a device and method for inner bore type component brush plating. The device comprises a workpiece to be plated, a workpiece clamping sealing device, a plating pen special for inner bore brush plating, and a plating pen rotary actuator. The workpiece to be plated and the clamping sealing device together form a container having an opening at the top; in plating process, the workpiece is the cathode, and the plating pen is the anode. The device and method realize that plating is prepared at the surface of the inner bore of the inner bore type component by using the technology of brush plating, thereby being applied to strengthening for new workpiece and also being applied to batch repair and remanufacturing for damaged pieces.

The invention relates to an anticorrosive wear-resistant paint for magnesium alloy. The paint provided by the invention is made from the following components of: a modified epoxy resin liquid which is prepared by dissolving and dispersing bisphenol A-type epoxy resin, J587 acrylic resin and the balance solvent, a metal nanometer polymer formed by Ti, Al2O3, MoS2 and the like, and a curing agent, a plasticizer, an auxiliary agent and a solvent which are commonly used for paints. The preparation method comprises the following steps of: adding the metal nanometer polymer into the modified epoxy resin liquid for dispersion, adding the curing agent, the plasticizer, the auxiliary agent and the solvent with fully stirring and uniformly dispersing, filtering and standing to prepare the anticorrosive wear-resistant paint. The preparation technology and operation are both simple with each step carried out at normal temperature and normal pressure, and are convenient for industrial production. The prepared paint is widely applied, has strong bonding force between the coating layer and the matrix and good anticorrosive and abrasion resistant performance, and has a long-acting effect of protecting magnesium alloy member.

The invention provides a cold-spraying and micro-arc oxidation combined workpiece surface treatment method. The method comprises the following steps that S1, oil stains on the surface of a workpiece are removed, and the surface of the workpiece is subjected to sand blasting; S2, the surface, subjected to sand blasting, of the workpiece is subjected to cold spraying, and a cold-spraying metal coating is formed on the surface of the workpiece; S3, the surface, subjected to cold spraying, of the workpiece is subjected to polishing treatment; S4, the workpiece subjected to cold spraying and polishing treatment is subjected to micro-arc oxidation, and a micro-arc oxidation metal ceramic layer is formed on the surface of the workpiece; and S5, the surface, coated with the micro-arc oxidation metal ceramic layer, of the workpiece is subjected to polishing after-treatment. The surface corrosion-resistant wear-resistant treatment method combining cold spraying and micro-arc oxidation technologies can be applied to surface corrosion resistance and repair remanufacturing of workpieces made of any material; and compared with an existing process, the wear-resistant and corrosion-resistant strengthening properties are improved, and meanwhile applicability, economical efficiency and environmental conservation are all considered, so that great market promotion value is achieved.

The invention relates to an all-day automatic tracking system. The system comprises a photovoltaic assembly, an installation platform, hydraulic cylinders, hydraulic cylinder installation seats and a hydraulic control power unit which adjusts the strokes of the hydraulic cylinders; the hydraulic cylinder installation seats are all arranged on the installation platform; the hydraulic cylinders arearranged on the installation platform; each hydraulic cylinder comprises a cylinder body and a piston rod; the cylinder bodies are connected with the hydraulic cylinder installation seats through trunnions; the end of the piston rod of each hydraulic cylinder is connected with the fixed end of the lower surface of the photovoltaic assembly through a universal joint; the all-day automatic trackingsystem also comprises an electric centralized control system for controlling the hydraulic control power unit to act, a follow light sensor used for measuring the required offset adjusting value of the photovoltaic assembly and an inclined sensor used for measuring the position offset adjustment value of the photovoltaic assembly; the horizontal reference surface of the inclined sensor is parallel to the surface of the photovoltaic assembly; and the orientation shaft Z of the follow light sensor is vertical to the surface of the photovoltaic assembly. The all-day tracking system can be used for atrocious weather, can realize accurate automatic tracking and consumes less electricity.

The invention belongs to the technical field of aluminum alloy producing and machining, and particularly relates to a low-pressure casting method for an abrasion-resistant aluminum alloy bicycle accessory. The low-pressure casting method comprises the following steps that a) aluminum alloy melt is prepared; b) a mold and a cast are prepared before pouring; c) low-pressure pouring is carried out, wherein a deigned pressure time curve is called, low-pressure pouring is carried out, solidification is carried out under pressure, liquid lifting, mold filling, supercharging, pressure maintaining, solidification and pressure relieving are included, and the aluminum alloy bicycle accessory is formed; d) cooling and demolding are carried out; and e) thermal treatment is carried out, wherein after the obtained aluminum alloy bicycle accessory is subjected to solution treatment, quenching treatment and quenching treatment, natural cooling is carried out, and the finished aluminum alloy bicycle accessory is obtained. The tensile strength of the aluminum alloy bicycle accessory is larger than or equal to 380 MPa, the yield strength is larger than or equal to 360 MPa, and the ductility is largerthan or equal to 6%.

The invention relates to a recycling method of a glass ceramic material. Waste generated in glass ceramic production is used as a main raw material, and recycling treatment is performed through the processes including smashing, screening, grading, binding agent adding, mixing and grinding, press-forming, drying, hot air hardening and the like to obtain a recycled glass ceramic product. Due to the fact that the waste produced in glass ceramic production is used as the main raw material, the energy consumption is reduced, stored waste glass ceramic materials can also be decreased, and environmental pollution is reduced. The production process is simple, the energy consumption is low, the production cost can be effectively reduced, different batches of products are good in reproducibility, and the recycling method is suitable for large-scale industrial production.

The invention relates to a production method for a surface strengthening layer of a threaded element and the threaded element for a parallel twin-screw extruder and belongs to the technical field of screw extruders. The production method comprises the steps that tungsten carbide powder, nickel-based self-fluxing alloy powder and a binder are mixed and internally mixed, and feed is obtained; a substrate of the surface strengthening layer to be produced is arranged into a mold, and a filling space is reserved for the feed; and the feed is injected into the filling space and then dewaxed and sintered. The method is relatively simple, the production efficiency is high, the near-net forming can be realized, the subsequent processing is reduced, and the method is especially suitable for large-scale mass production. The surface of the threaded element for the parallel twin-screw extruder has the surface strengthening layer with the high metallurgical bonding strength and the excellent wear resistance, the metallurgical bonding of the surface strengthening layer and the substrate is good, the surface strengthening layer has the obvious transition zone, and the structure distribution is uniform. In addition, the surface strengthening layer is nearly fully compact, has high hardness larger than or equal to 64.5 HRC, has excellent corrosion resistance and wear resistance and has the service life more than 2 times longer than that of the prior art.

The invention discloses an automobile connecting rod fixing clamping device. The device comprises a fixing base, a fixing clamping assembly, a clamping positioning assembly and a connecting rod workpiece, wherein the fixing clamping assembly and the clamping positioning assembly are fixedly arranged on the fixing base; and the connecting rod workpiece is arranged between the fixing clamping assembly and the clamping positioning assembly, one end of the connecting rod workpiece is connected in the fixing clamping assembly in a clamped mode and the connecting rod workpiece is axially fixed through a limiting clamping piece and a positioning clamping block of the fixing clamping assembly, and the other end of the connecting rod workpiece is connected in a clamping groove of the clamping positioning assembly in a clamped mode and the connecting rod big end of the connecting rod workpiece is radially positioned through the clamping positioning assembly. According to the device, the fixing effect is excellent, a product can be put into a general lathe for machining through the tool, the machining efficiency can be effectively improved, and the cost is greatly reduced; and a plurality ofmounting connecting hole grooves are uniformly distributed in the fixing base, and the fixing clamping assembly and the clamping positioning assembly are arranged in different mounting connecting holegrooves to be matched with the connecting rod workpieces of different models, so that the adaptability is excellent.

The invention discloses an automobile collision simulation test bench, which comprises a guide rail fixing plate, a hydraulic buffer, a buffer fixing block, a traction block, a trailer, a guide rail, a reinforcing plate rib, a traction plate and a limit block, and the guide rail fixing plate is equipped with a The guide rail is equipped with a traction block and a trailer. The outer surface of the traction block and the trailer is provided with a stiffener plate. The trailer workshop is equipped with a traction plate and is connected through it. There are through holes at both ends of the traction plate. The rotation limit block is clamped in the traction plate. A support is installed under the traction plate, and a support is installed under the support. Rollers, the other side of the traction block is equipped with a plastic energy absorber, one side of the plastic energy absorber is provided with a buffer fixing block, and a hydraulic buffer is installed in the buffer fixing block. The structure design of the invention is simple and reasonable, and the connection between the traction block and the trailer is extremely firm.

The invention provides a novel explosion door structure, the novel explosion door provided with a universal joint can automatically reset after the door cover is detonated under certain pressure, the door rod and the door cover cannot deform after continuous detonation, and the door rod and the door cover can be continuously pressed on the original sealing gasket, so that a better sealing effect is achieved. The sealing gasket adopts a structure that the lower part of the cross section is U-shaped and the upper part is triangular, a sealing structure is adopted among the valve body, the sealing gasket and the door cover, the sealing gasket is placed on a U-shaped groove of the valve body, the door cover is pressed into the sealing gasket, the door cover adopts a triangular structure, and the valve body, the sealing gasket and the door cover are tightly pressed and connected, so that the contact surface is larger, the sealing effect is better, and larger pressure can be borne; the sealing gasket is made of a graphite packing material, is low in cost, has a better sealing effect at a high temperature for a long time and is simple to replace. The novel explosion-proof door adopts a chromium plating process, and is better in corrosion resistance and wear resistance. By means of the technical scheme, the technical problems that in the prior art, when an explosion door returns, resetting is not accurate, and sealing is not tight are solved.

The invention discloses an FRPO composite reinforced hollow winding pipe. The FRPO composite reinforced hollow winding pipe comprises a winding pipe body formed by winding rectangular pipes, the smoothness of the inner wall and the outer wall of the winding pipe body is Ra0.012-Ra0.009, the inner wall and the outer wall of the winding pipe body are provided with a wear-resisting layer and a compression-resisting and stretching-resisting layer respectively, and bonding reinforcing ribs are arranged at positions, located between every two adjacent rectangular pipes, inside the winding pipe body.The composite reinforced hollow winding pipe has the advantages of high impact resistance, high strength, high wear resistance, super corrosion resistance, light weight, simplicity and convenience ininstallation, large through-flow, long service life and the like.

The invention provides corrosion-resistant and wear-resistant tool steel which is prepared by adopting a rapid solidification process and comprises the following chemical components in percentage by mass: 1.2-3.5% of C, 0.4-1.0% of Si, 0.2-1.0% of Mn, 12-27% of Cr, 0.8-3.0% of Mo, less than or equal to 4% of Co, less than or equal to 10% of V, less than or equal to 4% of Nb, 0.5-6% of Ti and the balance of Fe and impurities. According to the corrosion-resistant and wear-resistant tool steel, the second phase is small in size and uniform in distribution, excellent comprehensive mechanical properties are achieved, and especially due to existence of the high-hardness second phase in the structure, the steel can have excellent wear resistance.

The invention discloses an automobile tow hook device, which comprises a fixed support, a tow hook body, a built-in box, a trailer cable, a limit clip and an opening cover. There is a trailer cable in the box, which effectively protects the trailer cable, prolongs the service life of the trailer cable, and is convenient for carrying the trailer cable. One end of the trailer cable is fixed on the fixed rod, and the other end of the trailer cable passes through The opening extends to one end to open the cover, and one end of the trailer cable is fixedly sleeved on the fixed rod so that one end of the cable is fixed on the fixed rod, and the other end extends from the open cover and is fixed on the hook, and the cable is connected to the trailer when it is extended. It plays the role of double fixation to ensure the fixity and stability of the connection between the trailer cable and the trailer. The trailer cable is fixed at the inner end of the hook-shaped connection section through the limit clip. It is fixed into the support section to further ensure the stability and fixity of the cable.

The invention discloses a harvester large drum rear plate screen comprising a plate screen body (1), side plates (2), an anti-corrosion wear-resisting layer (3), a screen (4), a first reinforcing rib(5), a second reinforcing rib (6), a third reinforcing rib (7), a base plate (8) and an inserting plate (9); side plates (2) are installed at two sides of the plate screen body (1); the anti-corrosionwear-resisting layer (3) is installed on external surface of the side plates (2); the anti-corrosion wear-resisting layer (3) is applied with the side plates (2); the base plate (8) is installed at abottom of the plate screen body (1); the base plate (8) is welded to the plate screen body (1); the inserting plate (9) is installed at an upper end of the plate screen body (1); the inserting plate(9) is welded to the plate screen body (1); the screen (4) is installed on the plate screen body (1); the first reinforcing rib (5), the second reinforcing rib (6) and the third reinforcing rib (7) which are adapted to each other are installed in the screen (4). The harvester large drum rear plate screen of the invention has reasonable design and stable connection; the side plate has good anti-corrosion and wear-resisting performance.

The invention discloses a casting method for an anti-corrosive and abrasion-resistant composite check valve body. The casting method includes the following steps that (1) casting liquid is prepared, and chemical components of the casting liquid comprise, by weight, 0.22%-0.26% of C, 0.25%-0.45% of Si, 0.60%-0.80% of Mn, 0.15%-0.25% of V, 0.30%-0.50% of Ni, 0.10%-0.15% of Al, 0.03% or less of P, 0.02% or less of S, and the balance Fe; (2) casting-infiltration coating is prepared; (3) the valve body is cast; and (4) heat treatment and finishing are conducted. The check valve body obtained through the casting method disclosed by the invention is provided with a uniform and stable casting-infiltration composite layer on the surface, has excellent anti-corrosion and abrasion-resistant performance, and is high in yield, stable in quality, good in appearance quality and use performance and long in service life.