Method for manufacturing aluminum liner of vehicular composite cylinder

A manufacturing method and technology of aluminum liners, applied in the field of manufacturing aluminum liners of composite gas cylinders for vehicles, can solve the problems of low production costs and achieve the effects of low production costs, small weight-to-capacity ratio, and high geometric dimension accuracy

Active Publication Date: 2010-11-17
BEIJING TIANHAI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So up to now, there is still a lack of production cost low, large product diameter, light weight, high geometric dimension accuracy, good internal and external surface quality and meet the requirements of the manufacturing method for the aluminum liner of the composite gas cylinder for vehicles

Method used

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  • Method for manufacturing aluminum liner of vehicular composite cylinder
  • Method for manufacturing aluminum liner of vehicular composite cylinder
  • Method for manufacturing aluminum liner of vehicular composite cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] The present invention takes the aluminum liner with a nominal volume of 300L and a specification of 406×4.5mm as the implementation target. The material is 6061 aluminum alloy seamless pipe, which has undergone wall thickness reduction, spinning closing, T6 (solution aging) heat treatment, It is made through processes such as mouth processing and product testing, and the specific process steps are as follows:

[0065] 1. Select the raw material of 6061 aluminum alloy seamless pipe with a specification of 428×15mm, and inspect its surface quality, diameter and wall thickness.

[0066] 2. According to the design requirements, the aluminum alloy seamless pipe of the length required for blanking is sawed.

[0067] 3. Select the size of the strong-rotation mandrel: 397mm, clean the surface of the mandrel, and carry out strong-rotation thinning of the aluminum alloy seamless tube material into a preform.

[0068] 4. Use a carbide band saw to align both ends of the preform. ...

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Abstract

The invention discloses a method for manufacturing an aluminum liner of a vehicular composite cylinder, which is used for manufacturing the aluminum liner of the vehicular composite cylinder. The aluminum liner consists of a thin-walled cylinder body of the aluminum liner, an end enclosure gradually thickening part and an opening part. The aluminum liner is manufactured by adopting a method of reducing the wall thickness of a thick-wall aluminum pipe by over 60 percent by one time of rotary pressing by a 450 strong spinning reduction machine, forming the end enclosure part and the opening part by using a 412 spinning necking machine, and machining the connecting threads on the opening part after solution ageing heat treatment. The aluminum liner of the vehicular composite cylinder has the advantages of high quality, large diameter, thin wall thickness, small weight capacity ratio (weight / capacity), high geometric dimensioning accuracy, high quality of inner and outer surfaces and the like, and has the excellent application and market prospects.

Description

technical field [0001] The invention relates to the field of gas cylinder manufacturing technology, in particular to a method for manufacturing an aluminum liner of a composite gas cylinder for vehicles. Background technique [0002] The rapid development of the automobile industry has brought air pollution and energy shortages, and it is of great significance to vigorously promote new energy vehicles. Compressed natural gas (CNG) vehicles are rapidly developing in the world due to their good emission performance, low operating cost, mature technology, safety and reliability, and the demand for CNG cylinders for vehicles is also increasing. The original CNG gas cylinders for vehicles are all steel gas cylinders or steel liner circumferentially wound gas cylinders, which are heavy. Due to its advanced processing technology and materials, carbon fiber full-winding composite gas cylinders with aluminum liner have the characteristics of good safety performance, light weight, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 张增营张金秀
Owner BEIJING TIANHAI IND
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