What is the allowable deviation of pressure welding?

The bending angle of the electroslag pressure welding joint shall not be greater than 3, and the axis deviation shall not be greater than 0. 1 times the diameter of the steel bar, and shall not be greater than 2mm.

The visual inspection of electroslag pressure welding head shall meet the following requirements:

1, the height of the peripheral welding package protruding from the steel surface shall not be less than 4 mm.

2, steel contact with the electrode, there should be no burn defects;

3. The bending angle of the joint shall not be greater than 3;

4, the axis of the joint offset shall not be greater than 0. 1 times the diameter of the steel bar, and shall not be greater than 2 mm ..

(1) Arc welding head:

The weld surface of 1 shall be smooth, concave or shiny.

2 There shall be no cracks in the joint area.

3. The depth of lateral undercut is not more than 0.5 mm, the number of air holes with a weld surface length of 2d is not more than 2, and the slag inclusion area is less than 6 mm2.

4. The joint axis deviation is not more than 0. 1d or 3mm, and the bending angle is not more than 7/ 100 (4).

(2) Electroslag pressure welding head:

The axis deviation of 1 is not more than 0. 1d or 2mm, and the bending angle is not more than 7/ 100 (4).

2 The welding package around the joint should be uniform without cracks, and the height of the steel bar surface should be greater than 4 mm ..

3 steel surface should have no obvious burn defects.