Production method of automobile steering pipe column seamless steel pipe

A technology of steering column and seamless steel pipe, which is applied in the coating process of metal materials, can solve the problems of high cost and low processing efficiency, and achieve the effects of high heating efficiency, uniform heating, and improved smoothness

Inactive Publication Date: 2020-06-16
HEBEI PROVINCE GOLD MYSTERIOUS PIPE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Seamless steel pipes are used as raw materials for the production of auto parts, and the seamless steel pipes for automobile steering columns are mainly special-shaped seamless steel pipes (such as figure 1 shown), inside fairways (such as figure 2 As shown) in the event of a vehicle accident, the steering wheel collapses downward to reduce personal injury and at the same time satisfy the adjustment function of the steering wheel's up and down height, while the traditional process is produced by machining (milling machine, rotary section), which has low processing efficiency and high cost

Method used

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  • Production method of automobile steering pipe column seamless steel pipe
  • Production method of automobile steering pipe column seamless steel pipe
  • Production method of automobile steering pipe column seamless steel pipe

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] refer to Figure 1-3 , the present invention provides a kind of production method of automobile steering column seamless steel tube, comprises the following steps:

[0035] 1) Blanking on the sawing machin...

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Abstract

The invention provides a production method of an automobile steering pipe column seamless steel pipe. The production method includes the following steps of laying off of a sawing machine, and punchingof a center hole; heating of a pipe blank, hot rolling hole punching and producing a steel billet into a tubular billet; cutting of chamfers at the head end and the tail end; preliminary acid pickling and grinding and modifying, acid pickling, phosphorizing and saponifying; two-roller cold rolling and oil removal heat treatment of the pipe blank; dog hammering treatment of the pipe blank after heat treatment is completed; acid pickling, phosphorizing, saponifying and lubricating treatment of a middle pipe; cold drawing treatment; and following treatment and storage. The traditional machiningcost is greatly reduced, and the purposes that the procedures are simplified, the process is optimized, the production efficiency is improved, and the cost is reduced are achieved.

Description

technical field [0001] The invention relates to the technical field of manufacturing seamless steel pipe products, in particular to a production method of a seamless steel pipe for an automobile steering column. Background technique [0002] With the rapid development of my country's automobile industry in recent years, the competition in the automobile market has become increasingly fierce. Seamless steel pipes are used as raw materials for the production of auto parts, and the seamless steel pipes for automobile steering columns are mainly special-shaped seamless steel pipes (such as figure 1 shown), inside fairways (such as figure 2 As shown) when a vehicle accident occurs, the steering wheel collapses downward to reduce personal injury and at the same time satisfy the adjustment function of the steering wheel's up and down height, while the traditional process is produced by machining (milling machine, rotary section), which has low processing efficiency and high cost....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/06C23G1/08C23C22/06C23C22/68
CPCB21C37/06C23C22/06C23C22/68C23G1/081
Inventor 张艳军成永庆陈亚洲成金永王泽伟郗浩亮
Owner HEBEI PROVINCE GOLD MYSTERIOUS PIPE CO LTD
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