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Aluminium Die Casting
Die casting is injection moulding for metal: molten metal is forced at high pressure, about 10–175 MPa, into a steel die, held until it freezes, and pushed out by ejector pins. Aluminium needs a cold-chamber machine, where each shot is ladled in from a separate furnace, because molten aluminium would pick up iron from a submerged pump. The gate, runners and flash are broken off afterwards. Enclosures, housings and brackets come out with fine detail and little machining.
高级
Seconds per casting (industrial)
说明
1
1
Melt
Melt
Aluminium ingots are melted in a holding furnace beside the machine.
此步骤所需材料：
铝锭50 公斤2
2
Prepare the die
Prepare the die
The two die halves are sprayed with release lubricant and closed.
所需工具：
压铸机
压铸模3
3
Shot
Shot
A measured ladle of metal goes into the shot sleeve and a plunger drives it into the die at high pressure.
所需工具：
压铸机4
4
Freeze and eject
Freeze and eject
Pressure is held while the metal freezes; the die opens and ejector pins push the casting out.
所需工具：
压铸机压铸模5
5
Trim and check
Trim and check
Gate, runners and flash are removed and the casting is checked against the drawing.
所需工具：
6 英寸数显卡尺此蓝图制作
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