Surface treatment method of aluminium tyre mould
A tire mold and surface treatment technology, applied in the field of metal surface treatment, can solve the problems of easy falling off, corrosion, limited anti-corrosion performance, short service life of aluminum tire molds, etc., achieve strong anti-corrosion ability, high hardness, and improve service life Effect
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Embodiment 1
[0013] Embodiment 1: use micro-arc oxidation surface treatment equipment, the main parameters of the equipment are 200KW, 1500HZ, 800V, the alkaline electrolyte is a hexametaphosphate solution, according to the solute weight and pure water solvent volume ratio, take 45g of sodium hexametaphosphate / L, sodium silicate 6g / L, sodium tungstate 4g / L, sodium molybdate 2g / L and 10ml / L glycerol to prepare an alkaline electrolytic solution, adjust the pH value of the prepared solution to 8~ Between 12 and 12, install a conductive fixture firmly on the aluminum tire mold, soak it in alkaline electrolytic solution, connect the fixture to the positive pole of the power supply, and connect the stainless steel plate of the tank body to the negative pole, gradually apply pulse voltage to the aluminum tire mold through the power supply, and the voltage will gradually rise. Maximum peak voltage 500V, current density 1~3A / dm 2 , the frequency of use is 600HZ, the temperature of the alkaline ele...
Embodiment 2
[0014] Embodiment 2: use micro-arc oxidation surface treatment equipment, the main parameters of the equipment are 200KW, 1500HZ, 800V, the alkaline electrolytic bath liquid is a silicate solution, according to the solute weight and pure water solvent volume ratio, take 15g of sodium hexametaphosphate / L, sodium silicate 25 / L, sodium molybdate 6g / L, sodium tungstate 8g / L and 10ml / L glycerol to prepare an alkaline electrolytic solution, adjust the pH value of the prepared solution to 8 with phosphoric acid Between ~12, install a conductive fixture firmly on the aluminum tire mold, soak it in alkaline electrolytic solution, connect the fixture to the positive pole of the power supply, and connect the stainless steel plate of the tank body to the negative pole, gradually apply pulse voltage to the aluminum tire mold through the power supply, and the voltage will gradually rise , the highest peak voltage is 800V, the current density is 1~3A / dm 2 , the frequency of use is 1500HZ, t...
Embodiment 3
[0015] Embodiment 3: use micro-arc oxidation surface treatment equipment, the main parameters of the equipment are 200KW, 1500HZ, 800V, the alkaline electrolytic bath liquid is a hexametaphosphate solution, and according to the solute weight and pure water solvent volume ratio, take sodium hexametaphosphate 30g / L, sodium silicate 10g / L, sodium tungstate 5g / L, sodium molybdate 4g / L and 10ml / L glycerol to prepare an alkaline electrolytic solution, adjust the pH value of the prepared solution to 8 with phosphoric acid Between ~12, install a conductive fixture firmly on the aluminum tire mold, soak it in alkaline electrolytic solution, connect the fixture to the positive pole of the power supply, and connect the stainless steel plate of the tank body to the negative pole, gradually apply pulse voltage to the aluminum tire mold through the power supply, and the voltage will gradually rise , the highest peak voltage is 600V, the current density is 1~3A / dm 2 , the frequency of use is...
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