Production method and device of removing internal stress of steel wire for cold upsetting
A steel wire rod and production method technology, applied in the direction of manufacturing tools, improvement of process efficiency, furnace type, etc., can solve problems such as easy carbonization or sintering of steel wire rod, unfavorable cold heading forging, complicated equipment, etc., and achieve good processing Performance, ease of use, excellent performance
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[0021] Such as figure 1 As shown, the device for eliminating the internal stress of the steel wire used for cold heading and forging includes a pay-off stand 1, a high-frequency electric induction heater 2, and a take-up stand 3. The high-frequency electric induction heater is provided with a ring coil 4. The high-frequency electric induction heater 2 is provided with an infrared thermometer 5 .
[0022] Production method and steps of the present invention are as follows:
[0023] A. The starting end of the steel wire rod 6 used for cold heading forging passes through the ring coil 4 of the high-frequency electric induction heater 2 and is fixed on the wire rod take-up frame;
[0024] B. The high-frequency electric induction heater 2 is energized to heat the steel wire rod 6 for cold heading and forging;
[0025] C. The steel wire rod 6 for cold heading is heated to 200° C. to 700° C. in the toroidal coil 4 .
[0026] D. The steel wire rod 6 used for cold heading and forgin...
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