Aluminum die casting Mould
Die casting material, die casting machine and mould are three main factors of die casting production.The so-called die-casting process is the process of integrating these three elements together organically, so as to produce qualified casting or even high-quality casting with stable rhythm and high efficiency, which has good appearance, internal quality, dimension and pattern or agreement requirements.
The alloy used in die casting is mainly non-ferrous alloy. As for black metal (steel, iron, etc.), due to the problems of mold materials, it is seldom used.The non - ferrous alloy die - casting is widely used in aluminum alloy, followed by zinc alloy.The following is a brief introduction of die-casting non-ferrous metals.
(1), the classification of die casting non-ferrous alloy is blocked mixed contraction free shrinkage lead alloy - 0.2-0.3-0.4-0.4% and 0.5% 0.3% low melting point alloy tin alloy zinc alloy -- -- -- -- -- -- -- - 0.3-0.6-0.4-0.6% 0.4% and 0.8% aluminum silicon is 0.7 0.5-0.3-0.5% - 0.7% - 0.9% of die casting non-ferrous alloy aluminum alloy aluminum copper aluminum and magnesium are 0.9, 0.7-0.5-0.7% - 0.9% - 1.1% high melting point alloyAluminum zinc alloy ----------0.5-0.7% 0.7-0.9% 0.9-1.1% copper alloy.
(2) Casting temperature Aluminum alloy of various types recommended by die casting alloy: the average thickness of casting is less than or equal to 3mm. The average thickness of casting is >3mm
Aluminum alloy aluminum silicon is 610-650 ℃, 610-650 ℃, 600-620 ℃, 610-650 ℃
Aluminum bronze is 630-660 ℃, 630-660 ℃, 600-640 ℃, 630-660 ℃
Aluminum and magnesium is 640-680 ℃, 640-680 ℃, 640-670 ℃, 650-690 ℃
Aluminum zinc series 590-620 ℃, 590-620 ℃, 580-620 ℃, 600-650 ℃
Zinc alloy 420-440 ℃, 430-450 ℃, 400-420 ℃, 420-440 ℃
Magnesium alloy 640-680 ℃, 660-700 ℃, 640-670 ℃, 650-690 ℃
Copper alloy ordinary brass 910-910-930 ℃ 910 ℃, 900-930 ℃, 900-950 ℃
Silicon brass 900-920 ℃, 900-920 ℃, 910-940 ℃, 910-940 ℃
* Note: the casting temperature is generally measured by the temperature of the metal liquid in the holding furnace; Zinc alloy casting temperature should not exceed 450 ℃, lest the coarse grains.
2018 10/29