41results about How to "Give full play to wear resistance" patented technology

The invention discloses a manufacturing method of a graphite-contained high-speed steel centrifugal composite steel core roller, and belongs to the field of mechanical casting. Chemical elements of B and N are introduced in a traditional high-speed steel component, MC type and / or M2C type dotted and / or blocky high-hard alloy carbides, nitrides and borides with the total area percentage of 20% to 35% are dispersed and distributed in a work layer base body structure; through carbide, nitride and boride modification, graphite is subject to two-step treatment of modification and inoculation, graphite is precipitated in an original structure, and therefore the high-speed steel roller has the advantages of the specific high-temperature wear resisting of traditional high-speed steel and meanwhile the problem that an original traditional high-speed steel roller is large in friction coefficient is solved; wear-resisting performance of the high-speed steel is fully developed, the lubricating effect between the roller and a workpiece in the rolling process is achieved, and happening of the steel bonding phenomenon is avoided; due to the heat conduction performance and the lubricating characteristic of graphite, the defects that the high-speed steel roller is sensitive to hot impact and hot-cracking susceptibility, steel bonding is prone to happening, and surface roughing is prone to happening can be overcome, and particularly when a finished product rack is used, the surface bright degree of a rolled material is obviously improved.

The invention provides a high-wear-resistance nitrile rubber composite cable material. The high-wear-resistance nitrile rubber composite cable material is prepared from components in parts by weight as follows: 100 parts of nitrile rubber, 4-5 parts of an accelerant, 2-2.5 parts of an antioxidant, 8-13 parts of a fire retardant, 10-15 parts of filler, 1.5-2 parts of a coupling agent, 5-10 parts of a plasticizer, 1-1.5 parts of a vulcanizing agent, 2.5-3 parts of an anti-aging agent, 6-8 parts of modified compound zirconia, 4 parts of zinc oxide and 2 parts of stearic acid. The invention further provides a preparation method of the nitrile rubber composite cable material. The wear resistance of the nitrile rubber composite cable material is very high.

A high-Mn steel contained gear is prepared through providing a mould, pouring the molten high-Mn steel in the external toothed ring part of mould, solidifying it while pouring the molten carbon steel or alloy steel in the internal ring part of mould, and solidifying the internal and external rings at same time. Its gear product is also disclosed, which has high anti-impact and anti-wear performance and high machinability.

The invention provides a high wear-resistant PVC foamed sole material, comprising the following components in parts by weight: 45-60 parts of PVC, 0.5-3 parts of a foaming agent, 30-45 parts of a plasticizer, 0.5-5 parts of nano-silicon nitride, 0.5-0.8 part of a lubricating agent, 1-3 parts of a stabilizer, 5-8 parts of packing and 0.1-0.5 part of a coupling agent. The invention also discloses a preparation method of the high wear-resistant PVC foamed sole material. The wear-resisting property of the high wear-resistant PVC foamed sole material provided by the invention is excellent.

The invention discloses a preparation method of iron-based magnetic grinding powder. First, atomized iron powder is treated by high-temperature oxygen spray for pitting corrosion, then oxide impurities are removed by slow cooling and vibration, and then a powder seeding device is used to uniformly disperse the iron powder in α-oxidized iron powder. The surface of the aluminum lattice carbon fiber screen mesh, and the reciprocating vibration screen mesh makes the alumina adhere to the surface of the iron powder, and finally the powder is degreased, and finally the iron-based magnetic grinding powder with a surface structure imitating C60 is obtained. The method has the advantages of high control precision of the surface cutting element array, strong process stability and repeatability, and can realize the high-efficiency processing performance and long life of the iron-based magnetic grinding powder.

The invention discloses a container baseboard. The container baseboard sequentially comprises a surface layer, a sandwich layer and a bottom layer from top to bottom, wherein upper and lower surfaces of the sandwich layer are respectively connected with the surface layer and the bottom layer. The invention further discloses a method for preparing the container baseboard comprises the following steps: paving the sandwich layer on the upper surface of the bottom layer, paving the surface layer on the upper surface of the sandwich layer, and performing hot pressing composite to prepare the container baseboard. The density, strength, elasticity modulus, surface quality and various property indexes of the container baseboard can meet a composite container baseboard with industry standards of the international container, and the container baseboard has strong design, and can reasonably select thickness and density of the surface layer, the bottom layer and the core material according to actual demands, thereby realizing the best economic effect.

The invention provides a highly wear-resistant polyurethane shoe material, which consists of the following parts by weight: 35-55 parts of polytetrahydrofuran, 25-45 parts of toluene diisocyanate, 5-15 parts of chain extender, and 2-5 parts of nano-silicon nitride , 0.5-2 parts of coupling agent, 0.2-1 part of heat stabilizer, 0.1-0.5 part of foaming agent, and 0.5-1 part of catalyst. The invention also discloses a manufacturing method of the high wear-resistant polyurethane shoe material. The polyurethane shoe material provided by the invention has better wear resistance.

The invention discloses a composite board. The composite board comprises a first surface layer, a first sandwich layer, a middle sandwich layer, a second sandwich layer and a second surface layer which are sequentially arranged from top to bottom, wherein upper and lower surfaces of the middle sandwich layer are respectively connected with one surface of the first sandwich layer and one surface of the second sandwich layer; the other surface of the first sandwich layer is connected with one surface of the first surface layer through an amphoteric glue film, and the other surface of the second sandwich layer is connected with one surface of the second surface layer through the amphoteric glue film. A method for preparing the composite board comprises the following steps: paving one layer of amphoteric glue films on the second surface layer, paving one layer of second sandwich layers on the amphoteric glue film, paving one layer of middle sandwich layers on the second sandwich layer, paving one layer of first sandwich layers on the upper surface of the middle sandwich layer, paving one layer of amphoteric glue films on the upper surface of the first sandwich layer, paving one layer of first surface layers on the upper surface of the amphoteric glue film, and finally performing hot pressing and pressure maintaining; depressurizing and exhausting or firstly cooling to ambient temperature and releasing pressure in a segmentation manner to prepare the composite board. The composite board has the advantages of abrasion performance and corrosion resistance.

The invention discloses a plastic composite bottom plate, which comprises a surface layer, a core layer and a bottom layer arranged in sequence from top to bottom, the core layer includes a central core layer and a reinforcement layer, and the upper and lower surfaces of the core layer are respectively bonded by amphoteric adhesive A film is attached to the top layer and the bottom layer. The preparation method is as follows: evenly cover the upper and lower surfaces of the core layer with a layer of amphoteric adhesive film, stick the upper layer and the bottom layer respectively, then heat press and hold the pressure; then depressurize and exhaust in stages or cool to room temperature first and then release the pressure ; Prepared plastic composite bottom plate. The plastic composite bottom plate in the present invention, its density, strength, elastic modulus and surface quality and other performance indicators all reach the composite container bottom plate of the international container industry standard, so it is used as a container bottom plate, which has strong designability and can be used according to actual conditions. The thickness and density of the surface layer and the core layer should be reasonably selected to achieve the best economic effect.