Xia Kuncai

Bio: Xia Kuncai is an academic researcher. The author has contributed to research in topics: Piston & Cylinder (engine). The author has an hindex of 14, co-authored 172 publications receiving 649 citations.

Smelting preparation method for anti-tarnishing aluminum alloy section bar

Abstract: The invention discloses a smelting preparation method for an anti-stamping aluminum alloy section bar. The smelting preparation method comprises the following operation steps of: preparing aluminum alloy melt, wherein the aluminum alloy melt is prepared from the following materials in parts by weight: 55-65 parts of A356 aluminum ingots, 32-40 parts of waste aluminum products, 6-10 parts of boron carbide and 5-10 parts of nanometer quartz sand powder, and the fineness of the boron carbide is 5 microns to 8 microns; adding the materials to a smelting furnace; scattering a layer of covering agent to the surface of the melt to cover the melt when the furnace materials are heated up to be softened and collapsed, wherein the covering agent comprises the following components in parts by weight: 10-20 parts of CaO, 10-25 parts of Al2O3, 35-45 parts of SiO2, 12-30 parts of C and 12-23 parts of coal ashes. According to the smelting preparation method disclosed by the invention, the waste aluminum materials are added to the material ingredients for facilitating the stabilizing of the performances of the aluminum section bar and reducing the possibility that the quality of the aluminum section bar is affected by undetected materials during the smelting process of the melt. The ingredients are further optimized and the hardness and strength of the aluminum alloy are increased, so that the comprehensive performances of the aluminum alloy section bar are improved; and the chromizing treatment is carried out on the surface of the aluminum alloy section bar, so that the corrosion resistance of the oxide film on the surface of the aluminum alloy section bar and the binding force of the aluminum alloy section bar and the coating are improved.

High-wear-resistance leather cup rubber material for brake and preparation method thereof

Abstract: The invention discloses a high-wear-resistance leather cup rubber material for a brake. The high-wear-resistance leather cup rubber material is prepared from the following raw materials in parts by weight: 20-30 parts of nitrile rubber, 30-40 parts of chlorosulfonated polyethylene rubber, 25-35 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 12-14 parts of fluorine rubber, 3-5 parts of natural rubber, 20-30 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of zirconia, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of sulfur, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant PZ, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of montan wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent RD, 2-3 parts of phenyl triethoxysilane and 20-22 parts of dioctylmaleate. The rubber material disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber material can be used for preparing various packing materials.

High-pressure self-packing leather cup rubber for packer and preparation method thereof

Abstract: The invention discloses high-pressure self-packing leather cup rubber for a packer. The high-pressure self-packing leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of isoprene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorosilicone rubber, 3-5 parts of natural rubber, 30-40 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of antimony trioxide, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of isocyanate, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BZ, 1-2 parts of calcium stearate, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of polyethylene wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent, 2-3 parts of coupling agent DL-151 and 16-18 parts of epoxy linseed oil. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.

Leather cup rubber material for brake of automobile and preparation method thereof

Abstract: The invention discloses a leather cup rubber material for a brake of an automobile. The leather cup rubber material is prepared from the following raw materials in parts by weight: 40-50 parts of nitrile rubber, 20-30 parts of chlorosulfonated polyethylene rubber, 10-30 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber, 30-40 parts of high abrasion furnace black N330, 15-20 parts of modified white carbon black, 3-4 parts of graphite, 8-10 parts of modified wood ash, 4-6 parts of vermiculite, 4-6 parts of quartz sand, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of sulfur, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BPP, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of lignite wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent RD, 2-3 parts of phenyl triethoxysilane and 16-18 parts of acetyl triethyl citrate. The rubber material disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber material can be used for preparing various packing materials.

Leather cup rubber for laundry machine and preparation method thereof

Abstract: The invention discloses leather cup rubber for a laundry machine. The leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of chlorosulfonated polyethylene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber, 20-30 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of zirconia, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of isocyanate, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BZ, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of polyethylene wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent NBC, 2-3 parts of gamma-methacryloxypropyl trimethoxysilane and 16-18 parts of triethyl citrate. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.

Expansible graphite alcohol-group casting coating and preparation method thereof

Abstract: The invention discloses an expansible graphite alcohol-group casting coating, which is characterized by being prepared from the following raw materials in parts by weight: 30-40 parts of magnesite powder, 2-3 parts of attapulgite, 0.4-0.7 part of polyvinyl butyral, 30-45 parts of expansible graphite, 1-3 parts of aluminum hydroxide, 0.3-0.7 part of hexadecyl trimethyl ammonium chloride, 10-13 parts of lychee leave, 1-3 parts of linseed oil, 3-5 parts of phenol formaldehyde resin, 3-6 parts of hexamethylenetetramine, 45-67 parts of ethylalcohol and 3-7 parts of assistants. The expansible graphite alcohol-group casting coating is low in cost, energy-saving and environment-friendly; by optimizing the production technique process and the formula, the prepared coasting has the advantage of high-temperature resistance, strong strength and good air permeability.

Heat dissipating paint strongly resistant to ageing and preparation method

Abstract: The invention discloses a type of heat dissipating paint strongly resistant to ageing and a preparation method. The paint comprises, by weight, 35 parts to 50 parts of nanometer graphite, 5 parts to 12 parts of pure silica gel, 1 part to 3 parts of zircon power, 4 parts to 7 parts of aluminum oxide, 1 part to 4 parts of calcined potassium feldspar, 3 parts to 6 parts of xylitol, 3 parts to 6 parts of attapulgite, 4 parts to 7 parts of silica fume, 4 parts to 7 parts of blanc fixe, 30 parts to 45 parts of pure water, 3 parts to 6 parts of potassium hexatitanate whisker, 3 parts to 6 parts of zirconia, 6 parts to 10 parts of modifier, and the like. The modifier comprises, by weight, 25 parts to 40 parts of modified alkyd resin, 3 parts to 7 parts of graphene, 3 parts to 7 parts of quartz sand, 3 parts to 7 parts of citric acid and the like. The preparation method comprises the step of material mixing, the step of ball milling and the step of low-temperature modification treatment. Treatment is carried out on the paint by adding the modifier, the surface of a metal part is coated with the obtained heat dissipating paint, weather resistance and heat resistance are improved, adhesive force is increased, the paint is prevented from falling off and ageing, and the service life of the paint is prolonged.

Steel plate surface phosphatization method

Abstract: The invention relates to a steel plate surface phosphatization method. The steel plate surface phosphatization method comprises the following steps of 1, carrying out alkali washing on the surface of a steel plate, 2, carrying out pickling on the steel plate by sulfuric acid with a concentration of 3%, and carrying out washing, 3, carrying out electroplating in a plating solution by the steel plate surface as a cathode and inert metal as an anode, and 4, carrying out phosphatization on the electroplated steel plate by a phosphatization liquid, carrying out washing and carrying out drying. The steel plate surface phosphatization method utilizes a novel phosphatization liquid in phosphatization, can be used at a low treatment temperature of 33-40 DEG C, shortens time to 1-3min, realizes good film forming, greatly improves compactness and uniformity of the phosphated film and improves steel plate corrosion resistance and wear resistance.

High-strength corrosion-resistant aluminum alloy profile and preparation method thereof

Abstract: The invention discloses a high-strength corrosion-resistant aluminum alloy profile and a preparation method thereof. The aluminum alloy profile comprises an aluminum alloy base body and a ceramic coating. The aluminum alloy base body is prepared from Cu, Si, Fe, Cr, Mg, Mn, Zn, Ti, Li, Ni, Zr, Y, W, V and the balance Al. The ceramic coating is prepared from SiC, Cr2O3, NiO, Cr3C2, Al2O3 and Si3N4. According to the high-strength corrosion-resistant aluminum alloy profile, ceramic powder is arranged on the surface of the aluminum alloy base body through plasma cladding, and then laser remelting is conducted, so that the obtained aluminum alloy profile has good mechanical performance such as strength, hardness and impact toughness; and meanwhile, the high-strength corrosion-resistant aluminum alloy profile has the beneficial effects of being resistant to corrosion, good in abrasion resistance, long in service life and the like.

Oil-resistant corrosion-resistant rubber material

Abstract: The invention discloses an oil-resistant corrosion-resistant rubber material which is prepared from the following raw materials in parts by weight: 40-45 parts of nitrile-butadiene rubber, 30-36 parts of chlorosulfonated polyethylene, 10-15 parts of ethylene propylene diene monomer rubber, 8-13 parts of chloroprene rubber, 1.5-2 parts of sulfur, 1.2-1.8 parts of accelerator TMTD (tetramethyl thiuram disulfide), 0.8-1.3 parts of accelerator M, 20-30 parts of modified kaolin, 1.5-3 parts of carbon master batch, 9-11 parts of kieselguhr, 5-7 parts of magnesium oxide, 2-4 parts of furnace carbon black, 10-12 parts of magnesium hydroxide, 3-5 parts of red phosphorus, 5-7 parts of molybdenum disulfide, 2-4 parts of zinc stearate, 5-8 parts of epoxy soybean oil, 1.5-2.5 parts of silane coupling agent, 2-4 parts of anti-aging agent 1010 and 1-2 parts of anti-aging agent 264. The rubber material has the advantages of excellent corrosion resistance, excellent oil resistance, favorable wear resistance, favorable tear resistance and low cost, and reduces the hazard to the environment.