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Production process of precise seamless steel tube for hydraulic cylinder

A seamless steel pipe and production process technology, applied in metal rolling and other directions, can solve the problems of large metal loss, reduced steel pipe yield, low production efficiency, etc., achieve good strength, toughness and corrosion resistance, ideal production process effect, and easy processing The effect of easy process control

Inactive Publication Date: 2015-01-28
ZHANGJIAGANG RENHE HIGH PRECISION TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the production of traditional precision seamless steel pipes, the traditional process generally includes the following steps, the selection of waste pipes, pickling of waste pipes, phosphating, saponification, lubrication of waste pipes, drying, welding, cold drawing, degreasing heat treatment, straightening Grinding, secondary cold drawing, pipe cutting, pickling of finished products, packaging and warehousing, the traditional process itself will waste a certain amount of steel, reduce the yield of steel pipes, and increase production costs. The metal loss is large and the production efficiency is low. High input cost

Method used

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Embodiment Construction

[0024] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0025] A production process of precision seamless steel pipes for hydraulic cylinders, comprising the following steps:

[0026] The first step: the selection of the tube blank, the precise size of the tube blank is required, the rolling waste is reduced as much as possible, the inner diameter of the tube blank must meet the requirements, and the subsequent piercing requirements.

[0027] The second step: the tube blank is cut off and peeled. The steel pipe billet has high hardness and needs to be cut with a saw blade. The purpose of peeling treatment is to remove surface defects, and the peeling thickness is 5-6 mm.

[0028] The third step: surface treatment of the tube blank, shot blasting on ...

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Abstract

The invention discloses a production process of a precise seamless steel tube for a hydraulic cylinder. The production process comprises the following steps of selecting a tube blank, cutting off the tube blank, peeling, performing blank surface treatment, heating the tube blank, discharging a seamless steel tube blank, cooling, performing micro-oxygenation thermal treatment, lubricating the surface of the steel tube by use of a lubricating agent, punching, chambering, pickling, inspecting, polishing, performing steel tube cold rolling, deoiling, performing secondary thermal treatment, straightening, cutting the tube, pickling a finished product, inspecting the product, packaging and storing. The production process of the precise seamless steel tube for the hydraulic cylinder has the beneficial effects that the effect is ideal, the steel tube does not generate cracks, the obdurability and the corrosion resistance are favorable and the processing process is easy to control.

Description

technical field [0001] The invention relates to the field of steel pipe production, in particular to a production process of precision seamless steel pipes for hydraulic cylinders. Background technique [0002] In the production of traditional precision seamless steel pipes, the traditional process generally includes the following steps, selecting the blank pipe, pickling the blank pipe, phosphating, saponification, lubricating the blank pipe, drying, welding the head, cold drawing, degreasing heat treatment, straightening Grinding, secondary cold drawing, pipe cutting, pickling of finished products, packaging and warehousing, the traditional process itself will waste a certain amount of steel, reduce the yield of steel pipes, and increase production costs. The metal loss is large and the production efficiency is low. The input cost is high. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a production process o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B23/00
Inventor 冯建平冯涛
Owner ZHANGJIAGANG RENHE HIGH PRECISION TUBE
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