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Hole drawing process for thin-wall stainless steel hard tube assembly

A stainless steel and hard pipe technology is applied in the field of thin-walled stainless steel hard pipe assembly hole drawing process to ensure the effect of dimensional tolerance

Pending Publication Date: 2021-07-02
江苏帕卓管路系统股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a thin-walled stainless steel hard pipe assembly hole drawing process that can always ensure dimensional tolerances and solve the risks caused by many welds

Method used

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  • Hole drawing process for thin-wall stainless steel hard tube assembly
  • Hole drawing process for thin-wall stainless steel hard tube assembly
  • Hole drawing process for thin-wall stainless steel hard tube assembly

Examples

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Embodiment Construction

[0024] Such as figure 1 and 2 As shown, a tower crane rotation angle control device of the present invention cuts long steel pipes into several 644mm lengths through the automatic pipe cutting machine 10, and performs a punching process at a position of 126.2mm at the left end of the second steel pipe 9. The hole pulling machine 13 pulls out the second standard cup mouth 8 with an inner diameter of 50.8mm, the second elbow 7 is welded to the second steel pipe 9, and the second steel pipe 9 is fixedly connected to the second standard cup mouth 8 , the lower side of the second elbow 7 is welded with a wire-cut cup mouth 1, and the total length of the thin-walled stainless steel hard tube assembly is 815.8mm, and the total height is 160.5mm.

[0025] Such as image 3 The following steps are shown:

[0026] Step 1, blanking, first cut the long hard pipe into equal small sections through the automatic pipe cutting machine 10;

[0027] Step 2, chamfering, chamfering the cut cham...

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Abstract

The invention provides a hole drawing process for a thin-wall stainless steel hard tube assembly. The hole drawing process comprises the following steps that 1, blanking is conducted, specifically, firstly, a long hard tube is cut into equal small sections through a full-automatic tube cutting machine; 2, chamfering is conducted, specifically, chamfering is conducted on the cut chamfering machine through an inner and outer diameter chamfering machine; 3, punching is conducted, specifically, an elliptical hole is formed through a punching machine; 4, hole drawing is conducted, specifically, the edge of the drawn hole is turned outwards through a hole drawing machine to form a turned edge, the turned edge is ejected out of the outer wall of a metal pipe, hole drawing machining is completed, and the machined drawn hole is a plain-end circle; 5, shaping is conducted, specifically, the hard pipe is bent to 90 degrees through a pressure shaping machine to form an elbow; 6, an end face is flattened, specifically, the end face of a pipe opening is flattened through a single-station opening flattening machine; and 7, welding is conducted, specifically, a second elbow and a second standard cup opening are welded to a third steel pipe through a water segregator welding machine. The dimensional tolerance can be guaranteed, and risks caused by many welding seams are avoided.

Description

technical field [0001] The invention relates to the technical field of hole-drawing technology for pipe fittings, in particular to the hole-drawing technology for thin-walled stainless steel hard pipe assemblies. Background technique [0002] In recent years, domestic manufacturers of thin-walled stainless steel pipes have all used thin-walled tees and thin-walled pipes for argon arc welding. After welding, the risk of leakage will be increased due to the large number of welds. At the same time, due to welding thermal deformation, it will also cause Dimensional tolerances are too large. In response to similar situations, our company has developed a special solution to the hole-drawing process and required equipment for hard tube assemblies through research and research. After development and verification, it can not only ensure the dimensional tolerance of the hard pipe, but also solve the leakage risk caused by more welds. Contents of the invention [0003] The technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 孔林林史益新江雷
Owner 江苏帕卓管路系统股份有限公司
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