Mfg. method of metal ripple tubes

A technology of metal bellows and manufacturing methods, which can be applied to other home appliances, household appliances, applications, etc., can solve the problems of poor surface treatment, poor consistency of bellows, low production efficiency, etc., and achieve rapid melting and solidification. Narrow influence zone and improved efficiency

Inactive Publication Date: 2003-07-23
锦州经济技术开发区天华波纹管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of these two methods are single-piece production, low production efficiency, poor consistency of the bellows made, poor surface treatment effect, rough surface, and environmental pollution during surface treatment.

Method used

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  • Mfg. method of metal ripple tubes
  • Mfg. method of metal ripple tubes
  • Mfg. method of metal ripple tubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take the bright annealed cold-rolled stainless steel strip with a thickness of 0.1-0.2mm, roll it into a tube, and use an argon arc welding machine or a micro-beam plasma welding machine with strong and concentrated arc energy and no arc drift at a small current. The butt joints of the stainless steel strips are welded, and the rolled cold-rolled stainless steel strips are welded into extremely thin-walled steel pipes; they are cut off and then shaped by a bellows forming machine; figure 1 , figure 2 As shown, after forming, the bellows 3 is clamped on the operating table with a clamp consisting of a chuck 1 and a process jaw 2, and a tool holder 5 is used to push the rigid support (bearing) 4 into the metal bellows 3 At the edge trimming place, install the hob 6 on another tool rest 7, align the hob 6 with the edge trimming of the metal bellows, and perform edge trimming. After edge trimming, the rigid support 4 is withdrawn from the metal bellows 3; The back metal b...

Embodiment 2

[0018] Take the bright annealed cold-rolled stainless steel strip with a thickness of 0.1-0.2mm, roll it into a tube, and use an argon arc welding machine or a micro-beam plasma welding machine with strong and concentrated arc energy and no arc drift at a small current. The butt joints of the stainless steel strips are welded, and the rolled cold-rolled stainless steel strips are welded into extremely thin-walled steel pipes; cut off, and then formed by a bellows forming machine; steel wheels with elastic mandrels made of nylon or hard rubber are used The correcting machine, the corrugated pipe after forming is set on the elastic mandrel steel wheel for correcting; such as figure 1 , figure 2 As shown, the corrected corrugated pipe 3 is clamped on the operating table with a clamp consisting of a chuck 1 and a process jaw 2, and a tool holder 5 is used to push the rigid support (bearing) 4 into the metal bellows 3 At the edge trimming place, install the hob 6 on another knife...

Embodiment 3

[0020] Take the bright annealed cold-rolled stainless steel strip with a thickness of 0.1-0.2mm, roll it into a tubular shape, and use an argon arc welding machine or a micro-beam plasma welding machine with strong and concentrated arc energy and no arc drift at a small current to weld the cold-rolled stainless steel strip. The butt joints of the strips are welded, and the rolled cold-rolled stainless steel strips are welded into extremely thin-walled steel pipes; they are cut off and then formed by a bellows forming machine; figure 1 , figure 2 As shown, the molded corrugated pipe 3 is clamped on the operating table with a fixture consisting of a chuck 1 and a process jaw 2, and a tool holder 5 is used to push the rigid support (bearing) 4 into the metal bellows 3 At the edge trimming place, install the hob 6 on another knife rest 7, align the hob 6 with the edge trimming of the metal bellows, and perform edge trimming. After edge trimming, the rigid support 4 is withdrawn f...

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Abstract

A technology for making metallic bellows includes providing annealed cold-rolling bright stainless steel band, rolling to become pipe shape, welding, cutting, shaping, cutting edge, surface treating in a treating liquid prepared from nitric acid and water, flushing with water and dewatering with alcohol. Its advantages are high productivity and quality.

Description

technical field [0001] The invention relates to a method for manufacturing metal bellows Background technique [0002] Metal bellows are mainly used in electric vacuum, valves, sensors and other fields. There are two main manufacturing methods of the existing metal bellows, one is stamping the steel plate, stretching several times to thin it, and then thinning it by spinning to make a tube blank; the other method is to use thick-walled seamless stainless steel The tube is thinned by spinning to make a tube blank. After the tube blank is made, it is annealed, and then treated with a treatment solution composed of hydrochloric acid, nitric acid and hydrofluoric acid for surface treatment. The problems of these two methods are single-piece production, low production efficiency, poor consistency of the manufactured bellows, poor surface treatment effect, rough surface, and environmental pollution during the surface treatment process. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D51/12
Inventor 冯士昌凌人侠毕永文蔡振华王国臣高山
Owner 锦州经济技术开发区天华波纹管有限公司
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