论文部分内容阅读
筒体环向对缝的装合,一般采用对接焊,对口间隙应根据焊接要求而定。一般筒体板厚2～4毫米的,间隙为1毫米。板厚为5～20毫米的,间隙为2毫米。为了在零件联接边缘的全长上保持规定的间隙,需按规定间隙的大小在边缘插入固定板(见图1)。焊接结构一般在焊后都要挠曲,所以,在进行下一步装合之前应进行预矫正。筒体在焊好纵缝后一般在弯板机上进行矫正,矫正时应根据挠曲的特征决定是否采
Cylinder ring to the seam assembly, the general use of butt welding, counterpart clearance should be based on the welding requirements. General barrel thickness of 2 to 4 mm, the gap is 1 mm. Plate thickness of 5 to 20 mm, the gap is 2 mm. To maintain the specified gap over the entire length of the mating edge of the part, insert the fixing plate at the edge with the specified clearance size (see Figure 1). The welded structure is generally flexed after welding so that it should be predistorted before proceeding to the next step. Cylinder after welding the longitudinal seam is generally in the bending machine for correction, correction should be based on the characteristics of deflection to decide whether to adopt