Alu Ingot Aluminium 6061 6063 A7 Primary Ingots 99.9 Pure Aluminum

Aluminum-silicon (Al-Si) alloy, the mass fraction of Si is generally 4%~22%. Since Al-Si alloy has excellent casting properties, such as good fluidity, good air tightness, small shrinkage rate and small warm tendency, After modification and heat treatment, it has good mechanical properties, physical properties, corrosion resistance and moderate machinability. It is a type of alloy with the most varieties and widest uses in cast aluminum alloys. The characteristics and applications of common cast Al-Si alloys are as follows:

(1) ZL101(A) alloy ZL101 alloy has good air tightness, fluidity and thermal cracking resistance, moderate mechanical properties, welding performance and corrosion resistance, simple composition, easy casting, suitable for various castings method. ZL101 alloy has been used in complex parts with medium load, such as aircraft parts, instruments, instrument housings, engine parts, automobile and ship parts, cylinder blocks, pump bodies, brake drums and electrical parts, etc. In addition, based on the ZL101 alloy, the impurity content is strictly controlled, and the ZL101A alloy with higher mechanical properties obtained by improving the casting technology has been used to cast various shell parts, aircraft pump bodies, automobile gearboxes, fuel oil, etc. Elbows of tanks, aircraft fittings and other load-bearing parts.

(2) ZL102 alloy ZL102 alloy has the best thermal cracking resistance, good air tightness, and good fluidity. It cannot be strengthened by heat treatment and has low tensile strength. It is suitable for casting large thin-walled complex parts. Suitable for die casting. This type of alloy is mainly used for thin-walled castings with complex shapes under low load, such as various instrument housings, automotive casings, dental equipment, pistons, etc.

(3) ZL104 alloy ZL104 alloy has good air tightness, fluidity and thermal cracking resistance, high strength, good corrosion resistance, welding performance and cutting performance, but low heat resistance, easy to produce small pores, casting The process is more complicated. Therefore, it is mainly used to manufacture large-sized sand-type metal castings that withstand high loads, such as transmission casings, cylinder blocks, cylinder head valves, pulleys, cover toolboxes and other aircraft, ship and auto parts.

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