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Drawing Precision Seamless Process Flow System
Sources: this site Click: Date: 2016-8-17 20:54:7
Since the size of extubation die hole is smaller than the outer diameter of the capillary before drawing mill (removal of expansion outside), so as to make the front end of the capillary smoothly through the draft holes, so that the chuck jaws can pull trolley system folder live capillary head before pulling the capillary system will need to head to jump the queue (grind fine wool pipe ends to make it smaller than the outer diameter of the orifice size) to this end, the capillary should be heated in a certain length of slotted tube furnace end, generally 150 ~ 200mm, wall thickness depending on the heating temperature is between 750 ~ 900 ℃. Followed by 75 to 300 kg of air hammer jump the queue, grind fine fur head tube, usually in 22mm or less in diameter capillary available rotary hammer or roll forging machine grinding tip.
Precision seamless tube defects and improve in order to clear before pulling the plastic system subjected to heat treatment and pickling, pickling remove residual acid but also for washing and drying. You can also use mechanical methods such as shot blasting, sandblasting and other alternative pickling to remove oxide scale. In order to reduce friction between the tool surface and precision seamless tube extubation time, in order to reduce tool wear and prolong its service life and reduced energy consumption, so as to ensure the quality of precision seamless tube, cold drawn capillary prior to smear lubricant.
Precision seamless tube defects and improve in order to clear before pulling the plastic system subjected to heat treatment and pickling, pickling remove residual acid but also for washing and drying. You can also use mechanical methods such as shot blasting, sandblasting and other alternative pickling to remove oxide scale. In order to reduce friction between the tool surface and precision seamless tube extubation time, in order to reduce tool wear and prolong its service life and reduced energy consumption, so as to ensure the quality of precision seamless tube, cold drawn capillary prior to smear lubricant.
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