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Method for producing products of tubular meta casing body

A production method and metal shell technology, applied in the field of mechanical processing, can solve the problems of large consumption of materials, low production efficiency, large wall thickness tolerance, etc., and achieve the effects of improving process conditions, high processing accuracy and prolonging service life

Active Publication Date: 2005-01-12
CHANGZHOU RANTO METALWORK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Looking at the existing technologies, there are deficiencies in the deviation of the inner and outer diameters of the parts, ovality, and wall thickness tolerance, low production efficiency and large amount of material consumption.
However, parts produced by welding production methods still have the disadvantage of poor sealing.

Method used

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  • Method for producing products of tubular meta casing body
  • Method for producing products of tubular meta casing body
  • Method for producing products of tubular meta casing body

Examples

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specific Embodiment approach

[0036] A processing and production method for tubular metal shell parts, which takes a φ107mm×2.5mm×177.8mm compressor cylinder as an example, and its production steps are:

[0037] 1. Preparatory steps before machining:

[0038] 1. Pipe input. Raw material tube φ120×3.0mm; material: Baosteel SPHC.

[0039] 2. Cut the pipe. Cut to length according to specifications φ120×3.0×150mm.

[0040] 3. Phosphorus and saponification treatment. Carry out according to chart 4.

[0041] 2. Mechanical processing steps:

[0042] 4. Pier head. The diameter of the shrinkage is about φ105±1.0mm (see attached figure 2 ).

[0043] 5. Cold extrusion. Outer mold: φ107±0.015mm; mandrel: 102±0.015mm; workpiece moving speed is 6 m / s (see attached image 3 ).

[0044] 6. Cut off. Length 180±0.5mm.

[0045] 7. The two ends of the workpiece are processed by turning. Keep the total length 177.8±0.05mm.

[0046] 3. Processing steps after machining:

[0047] 8. Remove the saponified film on ...

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Abstract

A technology for manufacturing tubular metal casing includes such steps as cutting raw tube short by predefined size, cold die pressing of raw tube segment, surface treatment, and post-treating.

Description

technical field [0001] The invention belongs to mechanical processing technology, and in particular relates to a production method of tubular metal shell parts. Background technique [0002] The tubular metal shell parts of the present invention are various tubular metal shell parts including motor shells, air conditioner compressor shells and automobile shock absorber shells. The used base material of said tubular metal shell parts is various metal pipes including steel, aluminum, copper and metal alloys. [0003] Existing production method of this type of tubular metal shell parts has two kinds, and a kind of is the production method of rolling and welding with sheet metal, and another kind is the production method of stretching forming with sheet metal, as Chinese patent disclosure ( Announcement) No. 1176519, 1111412 and 2035930 etc. Looking at the existing technologies, there are deficiencies in the deviations of the inner and outer diameters of the parts, ovality, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/00B23P23/04
Inventor 顾斌杰
Owner CHANGZHOU RANTO METALWORK
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