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A small square sleeve step-by-step cold extrusion process

A step-by-step cold extrusion technology, applied in the field of step-by-step cold extrusion of small square sleeves, can solve the problems of large material waste, increased factory manufacturing costs, and cumbersome processing methods, so as to reduce input costs and reduce manufacturing costs. Difficulty, effect of small diameter and length

Active Publication Date: 2016-08-17
NINGBO COFAR HOSE & FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This processing method is relatively cumbersome, and the diameter and length of the selected bar are relatively large, so there is a large waste of materials, which increases the manufacturing cost of the factory

Method used

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  • A small square sleeve step-by-step cold extrusion process
  • A small square sleeve step-by-step cold extrusion process
  • A small square sleeve step-by-step cold extrusion process

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, 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.

[0022] A step-by-step cold extrusion process for small square sleeves, comprising the following steps:

[0023] (1) Material selection: select a circular bar with a diameter of 25.8mm as the raw material;

[0024] (2) Segmentation step: fix the raw material selected in step (1) on the sawing machine, then operate the machine to cut, cut into small sections with a length of 78.2mm, and obtain a rough blank;

[0025] (3) Annealing step: anneal the rough blank obtained in step (2) to reduce the hardness of the rough blank and improve its machinability; eliminate the residual stress inside the rough blank, stabilize the size, and reduce deformation a...

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Abstract

The invention discloses a small square sleeve step-by-step cold extrusion process, comprising the following steps of material selecting, a sectioning step, an annealing step, a sand blasting step, a phosphorous saponification step, a cold pressing molding step, a cold pressing molding step, an excircle finishing turning step and a punching step. According to the small square sleeve step-by-step cold extrusion process, the manufacturing difficulty of a small square sleeve can be effectively reduced, the manufacturing efficiency is greatly improved, and compared with raw materials selected in the prior art, the raw materials selected by the process have smaller diameters and lengths, so the investment cost of an enterprise in the raw material purchasing aspect is reduced, and the materials with the small diameters and lengths are more convenient to machine.

Description

technical field [0001] The invention relates to a step-by-step cold extrusion process of a small square sleeve. Background technique [0002] The existing processing technology of the square sleeve is to select a rough round bar with a diameter of 27mm, the cutting length of the sawing machine is 117mm, and the weight is about 526.26g. , and then finish the finished car. [0003] This processing method is relatively cumbersome, and the diameter and length of the selected bar are relatively large, so there is a large waste of material, which increases the manufacturing cost of the factory. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a step-by-step cold extrusion process for small square sleeves. This process can reduce the input cost of blanks, and at the same time, this process can increase the manufacturing speed of small square sleeves and reduce manufacturing difficulty. [0005] In order to solve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 方家伟
Owner NINGBO COFAR HOSE & FITTINGS