Manufacturing method of large-diameter thick-wall flange cylinder

A manufacturing method and cylinder technology, applied in manufacturing tools, arc welding equipment, welding equipment and other directions, can solve the problems of welding deformation, large error, large plate thickness deviation, etc., and achieve small welding deformation, small error, and small thickness deviation. Effect

Active Publication Date: 2020-09-29
ZHENGZHOU NO 9 METALLURGICAL SANWEI CHEM MACHINERY +1
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Problems solved by technology

[0003] In view of the above situation, in order to solve the defects of the prior art, the object of the present invention is to provide a method of manufacturing a large-diameter thick-walled flange cylinder, which can effectively solve the large deviation of the plate thickness caused by the existing manufacturing method, and the welding process will cause There are different degrees of shrinkage, resulting in welding deformation and large errors

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  • Manufacturing method of large-diameter thick-wall flange cylinder
  • Manufacturing method of large-diameter thick-wall flange cylinder
  • Manufacturing method of large-diameter thick-wall flange cylinder

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Embodiment Construction

[0009] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0010] Depend on Figure 1-3 Given, the present invention comprises the following steps:

[0011] 1) Cutting

[0012] The upper ring 1 and the lower ring 2 adopt 1 / 6 blanking, considering welding shrinkage and heat treatment deformation. When blanking, the diameter of the steel plate is +10mm. Because the outer circle needs to be processed, the blanking width of the ring is +3mm, and the thickness direction of the steel plate is cut vertically. The straightness is not greater than 1.5mm to ensure the machining allowance; the cylinder body 3 adopts 1 / 2 blanking, and the height is 780±3mm. In order to ensure the assembly clearance, it is required that the straightness of the whole length is not greater than 1.5mm, and both sides are grooved at 0K45 degrees to strengthen 116 pieces of rib plate 4 are blanked. In order to ...

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Abstract

The invention relates to a manufacturing method of a large-diameter thick-wall flange cylinder. The manufacturing method of the large-diameter thick-wall flange cylinder can effectively solve the problems of large plate thickness deviation, welding deformation and large error caused by shrinkage of different degrees in a welding process in an existing manufacturing method. The technical solution of the manufacturing method of the large-diameter thick-wall flange cylinder is that the large-diameter thick-wall flange cylinder is of an annular structure, the welding method comprises the followingsteps of 1) blanking; 2) platform laying; 3) installing and welding parts; 4) assembling; 5) welding; 6) assembling a reinforcing rib plate; and 7) product inspection. According to the manufacturingmethod of the large-diameter thick-wall flange cylinder, joints of upper and lower circular seams of the large-diameter thick-wall flange cylinder and a cylinder body are full-penetration first-stagewelding seams, a workpiece is of an annular structure, the height-width ratio is 6.6, the thickness deviation is small, the welding deformation is small, the error is small, the service life and the using effect are greatly prolonged, and the manufacturing method of the large-diameter thick-wall flange cylinder is a great innovation.

Description

technical field [0001] The invention relates to the field of welding, in particular to a method for manufacturing a large-diameter thick-walled flange cylinder. Background technique [0002] At present, in the production process of large-diameter thick-walled flange cylinders, the existing production methods lead to large deviations in plate thickness, and there will be different degrees of shrinkage during the welding process, resulting in welding deformation and large errors, which ultimately affect the large-diameter thick-walled flange. Therefore, it is imperative to invent a new method of making a large-diameter thick-walled flange. Contents of the invention [0003] In view of the above situation, in order to solve the defects of the prior art, the object of the present invention is to provide a method of manufacturing a large-diameter thick-walled flange cylinder, which can effectively solve the large deviation of the plate thickness caused by the existing manufactu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/32B23K31/02B23P19/00
CPCB23K9/18B23K9/32B23K31/02B23P19/00
Inventor 文琳董兆军李广胜王永超
Owner ZHENGZHOU NO 9 METALLURGICAL SANWEI CHEM MACHINERY
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