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Solution for thick wall tube forming of used round pipe to square pipe machines(2)

Solution for thick wall tube forming of used round pipe to square pipe machines(2)

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  • Release time:2023-06-03 11:30
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【概要描述】In the welded pipe industry, people generally regard welded pipes with a wall thickness to outside diameter (thickness-to-diameter ratio) of 12%≤t/D≤18% as thick-walled pipes. Difficulties in used round pipe to square pipe machines, clearly put forward the adjustment methods of thick-walled tube forming.

Solution for thick wall tube forming of used round pipe to square pipe machines(2)

【概要描述】In the welded pipe industry, people generally regard welded pipes with a wall thickness to outside diameter (thickness-to-diameter ratio) of 12%≤t/D≤18% as thick-walled pipes. Difficulties in used round pipe to square pipe machines, clearly put forward the adjustment methods of thick-walled tube forming.

  • Sort:Information
  • Auth:
  • Source:
  • Release time:2023-06-03 11:30
  • Pvs:
Detail

In the welded pipe industry, people generally regard welded pipes with a wall thickness to outside diameter (thickness-to-diameter ratio) of 12%≤t/D≤18% as thick-walled pipes. Difficulties in used round pipe to square pipe machines, clearly put forward the adjustment methods of thick-walled tube forming.

 

(1) Special attention should be paid to the deformation of the first flat roller of the used round pipe to square pipe machines. Including two aspects of reduction and symmetry. In particular, the reduction amount should be too large, and strive to be crushed, because from the perspective of pass design, such as W deformation, edge deformation, double-radius deformation, etc., the actual rolling of the edge of the tube billet is the best!

 

(2) Vertical roller pull plate must be used. This is determined by the structural characteristics of the vertical roller shaft and the deformation characteristics of the thick-walled tube. The vertical roller shaft pull plate is needed to strengthen the deformation of the tube blank.

 

Used round pipe to square pipe machines

(3) The reduction of the closed-hole type flat roll should be too large, in order not to hinder welding and sizing as the principle.

 

(4) Strictly control the angle of the closed hole guide ring to make it slightly larger than the angle formed by the thickness of the two edges of the tube blank, so as not to damage the edge shape of the tube blank.

 

(5) Pay attention to surface quality control. Thick-walled pipes have a large rebound, and it is difficult to enter the hole pattern, and it is easy to produce crushing, indentation and roll marks. Pay attention to the treatment and adjustment of these defects.

 

The above is a solution to the thick-walled tube forming of the used round pipe to square pipe machines, and proposes the adjustment methods of thick-walled tube forming, hoping to provide you with effective help.

 

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