32results about How to "Improve anti-corrosion and wear-resistant effect" patented technology

The hardening ceramic processing method for surface of piston rod includes the steps of forging, normalizing, coarse machining, seasoning, semi-finishing, stress-eliminating tempering, coarse grinding, spraying ceramic and finishing. Compared with conventional production process, the present invention has reduced hot processing time, lowered rejected product rate, and greatly increased piston rod life.

The invention relates to a boronizing method of integration of a pumping tube coupling and a pumping rod collar, which is characterized in that the tube coupling is used as a container for containing a boronizing agent, the rod collar is used as a mandrel for reducing heat capacity and increasing cooling rate during the cooling process, the rod collar is placed in the middle of the boronizing agent inside the tube coupling and heated by high temperature. The ingenious conception of the method can ensure that the tube coupling can reach higher tensile properties, the effects of anticorrosion and wear-resistance are much better than the rod collar and tube coupling made by common heat treating method, and the same amount of boronizing rod collars can be produced when the boronizing tube couplings are being made, thus increasing the production efficiency significantly, reducing the amount of boronizing agent used and decreasing the cost greatly. The hardness of the inner surface of the tube coupling and the outer surface of the rod collar obtained through the methods is HV 1100 to 1600, the thickness of the boronizing layer is 50 Mum to 90 Mum, the yield strength of the tube coupling is more than 552 MPa, the tensile strength is more than 689 MPa, and the elongation is more than 16 percent.

The invention relates to a low-cost metal filter bag for dust removal. The metal filter bag comprises a fine filtering layer and a coarse filtering layer, wherein the fine filtering layer is located on the inner side of the coarse filtering layer, the fine filtering layer is of a filtering structure, the coarse filtering layer is of a supporting and ventilating structure, the fine filtering layercomprises 316L stainless steel metal fiber felt, and the coarse filtering layer comprises 446 stainless steel or high-temperature-resistant carbon steel metal fiber felt. Compared with the prior art,the dust removal efficiency is guaranteed, the production cost of the metal filter bag is greatly reduced, and wide application is facilitated.

The invention discloses a lower shell assembly for a refrigerator compressor. The lower shell assembly comprises a positioning top annular seat component, a shell body component, a reinforced protective support, a positioning support plate component, an elastic positioning component and a radiating unit component, wherein the reinforced protective support is welded to the outer wall of the shell body component and is an integrated forming structure formed through casting stainless steel or alloy, and the stainless steel or alloy is high in strength and excellent in corrosion preventing and wear-resisting performance, so that the shell body component is effectively protected, and the service life of the entire shell body is prolonged; the positioning support plate component penetrates through a through hole in the reinforced protective support, extends inwards to the bottom end of the shell body component and plays the role of fixing the bottom end of the shell body component, so that fixation of the bottom end of the shell body component is ensured; a ventilating pipeline plays a radiating role in the interior of the compressor, so that the situation that poor radiation of the compressor causes damage to internal components is effectively prevented; a filter net is arranged in the ventilating pipeline, and the pore diameter of the filter net is 0.15-0.25 mm, so that the situation that impurities enter the compressor from the ventilating pipeline to affect overall operation is effectively prevented.

The invention discloses an anchoring bolt device of a concrete cover for a PC beam support, which comprises an anchoring bolt; a first spherical nut is in threaded connection with the first end of theanchoring bolt; a spherical nut seat is arranged at the first end of the anchoring bolt, and the concave spherical surface of the spherical nut seat is closely matched with the convex spherical surface of the first spherical nut; a second spherical nut is in threaded connection with the second end of the anchoring bolt; a spherical washer is arranged at the second end of the anchoring bolt, and the convex spherical surface of the spherical washer is closely matched with the concave spherical surface of the second spherical nut; a locking nut is in threaded connection with the second end of the anchoring bolt and is positioned at one side of the second spherical nut facing the second end direction; the surfaces of the first spherical nut, the spherical nut seat, the spherical washer, a plane washer, the second spherical nut and the locking nut are treated by a nitriding process and an in-situ growth composite material process to form an anti-corrosion wear-resistant material infiltration layer. According to the anchoring bolt device, the corrosion resistance and wear resistance of the anchoring bolt of the concrete cover can be improved, and the service life can be prolonged.

The invention discloses a harvester assembly bracket welding structure, comprising a fixed column (1), a wear-resistant anti-corrosion layer (2), a first support plate (3), a second support plate (4), and a third support plate ( 5), positioning pin mounting seat (6), positioning pin (7), fixed plate (10) and oblique extension plate (11); the fixed column is provided with a wear-resistant and anti-corrosion layer, and the wear-resistant and anti-corrosion layer is attached to the fixed column Above, the bottom of the fixed column is provided with a second support plate, the second support plate is connected with the support plate by welding, the two sides of the fixed column are respectively provided with the first support plate and the third support plate, the first support plate and the third support plate The support plate is connected with the support plate by welding, the front end of the fixed column is provided with an oblique extension plate, the oblique extension plate of the positioning pin is connected with the fixed column by welding, the rear end of the fixed column is provided with a fixed plate, and the fixed plate is welded Connected to the fixed column. The structure design of the invention is simple and reasonable, the structure connection is very stable, and the fixed column has excellent wear resistance and anticorrosion performance.

The invention discloses an axle tube structure of a vehicle axle, which comprises a shaft tube body, a shaft sleeve, a reinforcing rib, a limit ferrule, a sealing groove ring, a threaded groove and a threaded protrusion. The fixed base section has a reinforced raised section in the middle and a fixed support section at one end, which can effectively disperse the load of each part and reduce the risk of bending or even breaking the bushing; the bushing is equipped with a limit ferrule and connected by welding, which can The connection between the shaft sleeve and the limit ferrule is more firm, the shaft tube body is sleeved in the limit ferrule, and the limit ferrule can fix the shaft tube, which can prevent the shaft tube from moving in the shaft sleeve; the inner circumference of the shaft sleeve Both ends are equipped with sealing groove rings, which can prevent dust from entering the shaft sleeve and ensure the cleanliness of the shaft sleeve; there are reinforcing ribs on the outer surface of the shaft tube body, which can enhance the strength of the shaft tube , so that it will not break, the shaft tube body, shaft sleeve and limit ferrule are all cast from alloy steel as an integrated structure. The alloy steel has excellent anti-corrosion and wear resistance and high strength.

The invention provides a corrosion-resistant and durable pig ear tag and a preparation method thereof. The pig ear tag of the invention includes a main tag and an auxiliary tag. The main tag includesan ear tag face, an ear tag neck, and an ear tag head. The ear tag face comprises a protective layer. The protective layer is embedded with a chip. The protective layer has a connecting portion thereon connected to the ear tag neck. The ear tag neck includes a nail head and a top rod integrally connected with the nail head. The top rod is connected integrally with the ear tag head. An annular groove is formed on the top rod at a position close to the nail head. The connecting portion of the ear tag face is mounted in the annular groove. The ear tag neck has an anti-corrosion coating thereon. The ear tag head includes a clamping portion. The invention effectively prevents the pig ear tag from corroding or falling off during the use, facilitates management and epidemic situation and diseasetracking in the pig breeding and pork production process, and ensures that the public eats healthy pork.

The invention discloses an anticorrosion tape. The anticorrosion tape comprises, from top to bottom, a thin-film layer (1), an anticorrosion wearing layer (2), a connection layer (3) and a binder layer (4). The invention also discloses a preparation method for the anticorrosion tape. The preparation method comprises the following steps: heating the anticorrosion wearing layer (2) and the connection layer (3), and subjecting the anticorrosion wearing layer (2), the connection layer (3), the thin-film layer (1) and the binder layer (4) to rolling together so as to form the anticorrosion tape; or heating the anticorrosion wearing layer (2) and the connection layer (3), then subjecting the anticorrosion wearing layer (2), the connection layer (3) and the thin-film layer (1) to rolling so as to form an outer surface layer anticorrosion tape, and compounding the outer surface layer anticorrosion tape with the binder layer (4) so as to form the anticorrosion tape. The anticorrosion tape for a pipeline in the invention has the advantages of environment friendliness, high strength, good toughness, resistance to friction, water, moisture, high and low temperature and corrosion, long service life, etc.

The anti-corrosion and wear-resistant VVT engine electromagnetic valve with the outer protection structure comprises an electromagnetic valve body and a protection mechanism, the protection mechanism comprises a first clamping plate and a second clamping plate, anti-corrosion layers are arranged on the outer surface of the first clamping plate and the outer surface of the second clamping plate, wear-resistant layers are arranged on the outer sides of the anti-corrosion layers, and the anti-corrosion layers are arranged on the outer sides of the wear-resistant layers. The VVT engine electromagnetic valve comprises a first clamping plate and a second clamping plate, the two ends of the first clamping plate are each rotationally connected with two positioning plates, the two ends of the second clamping plate are each fixedly connected with two positioning blocks, clamping grooves corresponding to the positioning blocks are formed in the side walls of one ends of the positioning plates, and transverse plates are fixedly connected to the positioning plates. The electromagnetic valve can be effectively protected through the arrangement of the external protection assembly, collision damage is avoided, the good anti-corrosion and wear-resisting effects are achieved, the service life is prolonged, and the electromagnetic valve is suitable for application and popularization.

The invention discloses a novel well pipe structure which comprises a water filtering pipe, a water-bearing layer, an artificial sand layer, a well pipe body, a building sand layer, a clay closing layer, a locating strengthening layer, a protecting layer and a filtering assembly. The filtering assembly is arranged in the water filtering pipe. The protecting layer is arranged at the side end of thewell pipe body. The clay closing layer is arranged at the upper end of the well pipe body. The locating strengthening layer is arranged at the upper end of the clay closing layer. The novel well pipestructure is simple and reasonable in design. The filtering assembly is arranged in the water filtering pipe, the filtering assembly can effectively filter and remove impurities in the water filtering pipe, and therefore the cleanness degree of water in the water filtering pipe is ensured. The protecting layer is arranged at the side end of the well pipe body, the clay closing layer is arranged at the upper end of the well pipe body, the locating strengthening layer is arranged at the upper end of the clay closing layer, the locating strengthening layer and the protecting layer are cast intoan integrally formed structure through stainless steel, the stainless steel is high in strength and good in corrosion and abrasion resisting property, the locating strengthening layer and the protecting layer can have the function of protecting the well pipe body, the service life of the well pipe body is prolonged, and the overall stability of the structure is ensured.

The invention discloses a nozzle of an injection molding machine. A dirt isolation module is additionally arranged in an injecting cavity, and comprises multiple dirt isolation parts; each dirt isolation part comprises a cylindrical shell, and a dirt isolation baffle plate arranged in the shell; the dirt isolation baffle plates are magnetic components, and can absorb hard blocks or impurities on the surfaces to prevent blockage of the injecting cavity and the nozzle due to feeding into the injecting cavity and the nozzle along with injection molding raw material fluids; the dirt isolation baffle plates are staggered on the inner wall of the injecting cavity to increase the contacted areas between the fluids and the dirt isolation baffle plates, so that the hard blocks or the impurities inthe fluids are easier to contact with the dirt isolation baffle plates to be absorbed by the baffle plates; the injecting cavity, the nozzle and a connecting part are in threaded connection, so that the injecting cavity can be disassembled for replacement or cleaning as needed to achieve convenience, practicability and reasonable design; and the shells of the dirt isolation parts are made of corrosion-resistance and wear-resistance polytetrafluoroethylene materials, so that the scouring corrosion of the injection molding raw material fluids to the shells is effectively prevented, the service life of the shells is prolonged, and the service life of the nozzle is prolonged.