Mold/non-mode combined pulling process and device
一种联合拉拔、工艺的技术,应用在金属拉拔的成型工具、金属拉丝、制造工具等方向,能够解决降低拉拔力、无模拉拔变形量大有模拉拔等问题,达到降低拉拔力、缩短拉拔道次、操作维修方便的效果
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Embodiment 1
[0030] A nearly equiatomic ratio nickel-titanium shape memory alloy wire rod with a diameter of 6 mm was selected as the billet, which passed through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and The traction mechanism (6); then, turn on the heater (3) to heat it to 783K (0.50 times its melting point temperature Tm); start the feeding mechanism (2) and the traction mechanism (6) at the same time, at the drawing speed Vo Under the condition of the ratio Vo / Vi=2.2 to the feed speed Vi of the billet, the joint drawing with die (4) and the cooler (5) is used to complete the combined drawing with die / die; the diameter is 4 mm and the surface finish is good. , Near-equal atomic ratio nickel-titanium shape memory alloy wire with high dimensional accuracy.
Embodiment 2
[0032] Select 304 stainless steel wire rod with a diameter of 6 mm as the billet, pass through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and traction mechanism (6) in sequence after being sharpened; then , turn on the heater (3) to heat it to 1540K (0.90 times its melting point temperature Tm); start the feeding mechanism (2) and traction mechanism (6) at the same time, at the drawing speed Vo and the billet feeding speed Vi Under the condition of ratio Vo / Vi=2.8, through the action of drawing die (4) and cooler (5), combined drawing with die / die is completed; 304 stainless steel with a diameter of 3.6 mm, good surface finish and high dimensional accuracy is obtained wire.
Embodiment 3
[0034] Select the YL12 aluminum alloy wire rod with a diameter of 6 mm as the billet, and pass through the feeding mechanism (2), heater (3), drawing die (4), cooler (5) and traction mechanism (6) in sequence after tipping; Then, turn on the heater (3) to heat it to 745K (0.85 times its melting point temperature Tm); start the feeding mechanism (2) and traction mechanism (6) at the same time, at the drawing speed Vo and the billet feeding speed Vi Under the condition of the ratio Vo / Vi=2.3, through the drawing die (4) and cooler (5) to complete the joint drawing with die / die; obtain YL12 with a diameter of 4 mm, good surface finish and high dimensional accuracy Aluminum alloy wire.
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