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Method for producing spring

A technology of manufacturing method and cooling method, applied in the field of spring manufacturing, can solve problems such as long time

Inactive Publication Date: 2012-12-12
CHUO SPRING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, if baking treatment and low-temperature annealing treatment are performed at the same time, there will be a problem that the time required for heat treatment will be longer.

Method used

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  • Method for producing spring
  • Method for producing spring
  • Method for producing spring

Examples

Experimental program
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Embodiment Construction

[0017] Next, the manufacturing method of the spring in this embodiment will be described. In this embodiment, a case of manufacturing a stabilizer bar which is a type of spring will be described as an example. The stabilizer bar has a substantially linear portion and arm portions provided at both ends of the straight portion. When installing the stabilizer bar on the car, it is necessary to fix the arm parts at both ends to the left and right wheels, and fix the straight part to the vehicle body. In this way, when the stabilizer bar is installed on the vehicle body, the lateral roll of the vehicle body can be controlled to improve the driving stability of the vehicle when the vehicle is turning.

[0018] The manufacturing method of the stabilizer bar has the following steps: a forming step, firstly performing cold bending processing, heating bending processing, or hot bending processing on the steel material to form the shape of the stabilizer bar; Heat treatment; shot peeni...

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Abstract

To provide a method for manufacturing a spring having a painted surface, the method being capable of reducing a time period required for performing a paint baking process and low temperature annealing process while performing these processes at the same time. This manufacturing method has a step of heating the spring to a predetermined temperature (S12) and a step of spraying paint onto a surface of the spring and baking the paint while cooling the heated spring in accordance with a predetermined cooling pattern (S 14, S16). The predetermined temperature in the heating step and the cooling pattern obtained in the painting step are set such that a predetermined low temperature annealing process is performed on the spring in the heating and painting steps.

Description

technical field [0001] The invention relates to a method for manufacturing a spring. More specifically, the present invention relates to a technique for shortening the time required for a coating process of coating the surface of a spring. Background technique [0002] When a load is repeatedly applied to the spring, the spring is fatigued, so the spring needs to be treated (such as shot blasting) in order to improve the durability of the spring. In addition, in order to prevent the spring from shortening its service life or deteriorating its mechanical properties due to corrosion, the surface of the spring is painted. For this reason, in the manufacturing method of existing spring, at first carry out the processing (for example shot blasting treatment) that is used to improve the durability of spring, afterwards paint is sprayed on the surface of spring, at last the paint that is sprayed is baked to spring. On the surface ("Spring" 4th edition, pp. 522~530, compiled by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/02B05D7/14C21D9/02C21D7/06
CPCB05D7/14B05D3/0254C21D9/02C21D7/06C21D1/32F16F1/024F16F2226/02B05D3/0218
Inventor 平田雄一请井良好铃木秀和
Owner CHUO SPRING
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