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Technic for processing suspension spring

A processing technology and suspension spring technology, applied in the field of spring manufacturing, can solve problems such as stability and poor comfort, and achieve the effect of high degree of automation and reasonable process

Inactive Publication Date: 2010-02-10
QIANJIANG SPRING HANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of poor stability and comfort of the existing suspension springs, and provide a kind of reasonable process, the finished product can withstand high-frequency reciprocating compression movement, and when the springs collide with each other when they are subjected to a large impact Suspension spring processing technology that is not easy to emit noise

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The technical solutions of the present invention will be further specifically described below through examples.

[0017] The design stress of this embodiment is 1200Mpa, select a spring wire rod diameter to be 14.5mm wire rod material to carry out material inspection in the feeding process, mark, cold forming in the forming machine, the expansion length of spring wire rod is 2600mm, spring main body 1 The middle diameter of the spring coil is 130mm, 100% flaw detection, automatic sorting of materials with defects and inspection length.

[0018] When entering the heat treatment process, it is annealed at a temperature of 400°C, cooled at 110°C, and kept at 180°C for 45 minutes, and then automatically transferred to the hot pressing process.

[0019] The hot pressing process adopts warm compression, and the compression time, compression stroke, and compression mode are controlled by programming. The hot pressing temperature is set to 200°C, the compression time is set to ...

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Abstract

The invention relates to the technical field of spring manufacturing, in particular to a technic for processing a suspension spring. The technic includes the whole processes of feeding inspection of raw materials of steel wire rods, molding, heat treatment, preliminary treatment, packaging and storage. The technic is characterized in that after being molded, the raw materials are processed by theheat treatment, cooling and temperature preservation and then are processed by the thermal forced compression technology, cooling means that the temperature of the spring is lowered to range from roomtemperature to 200 DEG C by cooling, and temperature preservation means that the temperature of the spring is maintained to range from the room temperature to 300 DEG C; the thermal forced compression technology adopts temperature compression, the temperature ranges from the room temperature to 290 DEG C, and heat shot blasting is carried out after the thermal forced compression technology is carried out; and the preliminary treatment includes deoiling, degreasing, parkerising, cleaning and passivation.

Description

technical field [0001] The invention relates to the technical field of spring manufacturing, in particular to a suspension spring processing technology. Background technique [0002] The widespread application of springs has diversified the types, structural forms and functions of springs. There are also many methods of spring production and spring processing, each with its own characteristics. [0003] For example, the patent number is ZL01114045.3 spring steel wire rod for direct drawing and its manufacturing method, which relates to a silicon-manganese spring steel wire rod for direct drawing and its manufacturing process. This invention mainly is the processing technology of spring steel raw material, makes hot-rolled silico-manganese spring steel wire rod obtain evenly distributed thin flaky pearlite and a small amount of ferrite (or sorbite) structure after rolling, and the tensile strength of wire rod after rolling ( Stein) 1000MPa ~ 1200MPa, reduction of area (? 25...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21F3/00
Inventor 张涌森
Owner QIANJIANG SPRING HANGZHOU CO LTD
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