Aluminum casting products widely used for automobile accessories, various household supplies, industrial machinery and accessories. People will purify the aluminum liquid after derived from the electrolytic bath because it usually has various impurity. People mainly use flux and gas purification method in industry.
Flux purification use the flux to form a large number of fine droplets and make oxide impurities in the liquid aluminum adsorbed and dissolved. Then it will generation of new material float on the surface and removed after cooling. The solvent which is regarded as cleaning agent should be salt with low melting point, low density, high activity and very strong adsorption capacity.
Gas purification is a main method of primary aluminum purification, the gas is chlorine, nitrogen or mixture of both. Chlorine gas purifying often use active gas as purifying agent. It will produce many small bubbles after he chlorine get into the aluminum liquid and dispersed in aluminum liquid evenly. Hydrogen and some debris attach on the bubbles will separate with the bubbles rising.
Nitrogen gas purifying method use gaseous nitrogen directly into the aluminum fluid with alumina ball as filter media. At the same time, the liquid clean by nitrogen and it accelerate the reaction by non metallic inclusions and dissolved hydrogen and aluminum oxide.
Thursday, 26 June 2014
Tuesday, 17 June 2014
Aluminum Die Casting
Aluminum casting is a part made by pressure cast. It use die casting machine which is installed casting mold, put the heated liquid aluminum or aluminum alloy into casting machine inlet port. You will get aluminum part with limited shape and size of the mold. Such parts usually called aluminum die casting. Aluminum die casting has a different name in different places.
Aluminum castings can be manufactured to various parts. Such as die casting aluminum auto parts, aluminum die-casting auto engine fittings, aluminum die casting, aluminum engine cylinder gasoline engine cylinder head, valve rocker arm, aluminum die-casting aluminum die-casting valve holder, aluminum die-casting electric fittings, aluminum die-casting motor end cover, aluminum die casting shell die-casting aluminum die casting, pump casing, construction parts, aluminum die-casting accessories, aluminum die casting, aluminum die-casting aluminum wheel rail accessories and so on. The die cast which the melted die cast aluminum is injected into the molds under high pressure of 10—20Mpa. The thickness of die cast part is mini 2mm, the draft angle of die cast is 0.5o. The finish of die casting is the best in sand casting process and die casting process.
Aluminum casting can make all kinds of complicated shape because aluminum and aluminum alloy has good fluidity and plasticity, casting processing are cast in die casting machine that with pressure. We can also make high precision and smooth finish, thus greatly reducing the casting allowance machining casting and metal aluminum or aluminum alloy. It not only save power, metal materials, but also greatly save labor cost.
Aluminum castings can be manufactured to various parts. Such as die casting aluminum auto parts, aluminum die-casting auto engine fittings, aluminum die casting, aluminum engine cylinder gasoline engine cylinder head, valve rocker arm, aluminum die-casting aluminum die-casting valve holder, aluminum die-casting electric fittings, aluminum die-casting motor end cover, aluminum die casting shell die-casting aluminum die casting, pump casing, construction parts, aluminum die-casting accessories, aluminum die casting, aluminum die-casting aluminum wheel rail accessories and so on. The die cast which the melted die cast aluminum is injected into the molds under high pressure of 10—20Mpa. The thickness of die cast part is mini 2mm, the draft angle of die cast is 0.5o. The finish of die casting is the best in sand casting process and die casting process.
Aluminum casting can make all kinds of complicated shape because aluminum and aluminum alloy has good fluidity and plasticity, casting processing are cast in die casting machine that with pressure. We can also make high precision and smooth finish, thus greatly reducing the casting allowance machining casting and metal aluminum or aluminum alloy. It not only save power, metal materials, but also greatly save labor cost.
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