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A kind of preparation method of planar scroll spring

A flat scroll spring and coil spring technology, which can be used in the direction of manufacturing springs, manufacturing tools, heat treatment equipment from wires, etc., can solve the problems of complex coil structure, deformation and damage, and difficult preparation.

Active Publication Date: 2021-04-13
青海金泽恩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A flat scroll spring made of 60Si2CrVA material with a thickness of 7 mm and a width of 30 mm. The center of the scroll spring has a mounting opening at the other end of the outermost ring. Due to the large number of coils and the relatively complicated structure, it is difficult to prepare. It is prone to deformation and damage during the preparation process, and the torque output is not good after manufacture. Stability and other issues, so it needs to be produced according to specific process steps during preparation, and a systematic test is carried out after the preparation is completed; the Chinese invention patent with the publication number CN107584055A discloses a method for preparing a coil spring, which is compared with the present invention The number of coils of the planar scroll spring in the method is less, and the structure is different, and it cannot be fully applicable to the preparation of the planar scroll spring in the present invention.

Method used

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  • A kind of preparation method of planar scroll spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of preparation method of planar scroll spring comprises the steps:

[0041] Step1: 60Si2CrVA steel material preparation, 60Si2CrVA steel material preparation includes: batching, electric furnace steelmaking, electroslag remelting, billet opening, peeling flaw detection, hot rolling, pickling, finishing forming, annealing, polishing 10 steps;

[0042] Then rolled into a thickness of 7mm, a width of 30mm steel strip A;

[0043] Step2: Phosphate and draw the steel strip A. There are no cracks, folds, pits, scratches, or burrs on the surface of the steel strip A. After the wire drawing, the raw material should be vertical and uniform without obvious concave-convex waves, and the steel strip B is made;

[0044] Step3: Saw the end face of the single end of the steel strip B flat with a sawing machine, chamfer around the end face, no pits or burrs are allowed on the surface, and make steel strip C;

[0045] Step4: Bend the flat end of the steel strip C to 180°, fix the...

Embodiment 2

[0057] A kind of preparation method of planar scroll spring comprises the steps:

[0058] Step1: 60Si2CrVA steel material preparation, 60Si2CrVA steel material preparation includes: batching, electric furnace steelmaking, electroslag remelting, billet opening, peeling flaw detection, hot rolling, pickling, finishing forming, annealing, polishing 10 steps;

[0059] Then rolled into a thickness of 7mm, a width of 30mm steel strip A;

[0060] Step2: Phosphate and draw the steel strip A. There are no cracks, folds, pits, scratches, or burrs on the surface of the steel strip A. After the wire drawing, the raw material should be vertical and uniform without obvious concave-convex waves, and the steel strip B is made;

[0061] Step3: Saw the end face of the single end of the steel strip B flat with a sawing machine, chamfer around the end face, no pits or burrs are allowed on the surface, and make steel strip C;

[0062] Step4: Bend the flat end of the steel strip C to 180°, fix the...

Embodiment 3

[0074] A kind of preparation method of planar scroll spring comprises the steps:

[0075] Step1: 60Si2CrVA steel material preparation, 60Si2CrVA steel material preparation includes: batching, electric furnace steelmaking, electroslag remelting, billet opening, peeling flaw detection, hot rolling, pickling, finishing forming, annealing, polishing 10 steps;

[0076] Then rolled into a thickness of 7mm, a width of 30mm steel strip A;

[0077] Step2: Phosphate and draw the steel strip A. There are no cracks, folds, pits, scratches, or burrs on the surface of the steel strip A. After the wire drawing, the raw material should be vertical and uniform without obvious concave-convex waves, and the steel strip B is made;

[0078] Step3: Saw the end face of the single end of the steel strip B flat with a sawing machine, chamfer around the end face, no pits or burrs are allowed on the surface, and make steel strip C;

[0079] Step4: Bend the flat end of the steel strip C to 180°, fix the...

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Abstract

The invention discloses a method for preparing a flat scroll spring, including steel preparation, phosphating and wire drawing, single-sided sawing, bending, initial coil forming, annealing, finishing coil shaping, overall length cutting, drilling, heat treatment and shaping, mechanical Experiment, surface phosphating, etc., the preparation process is simple and easy to realize, the steel strip is not easily deformed or damaged during preparation, the process adopts a vacuum double-chamber quenching furnace, the degree of automation is high, the human intervention is less, the industrial quenching time is short, and the prepared product has no delamination. Carbon, no deformation, balanced temperature, stable metallographic structure, and stable torque output of the flat scroll spring after production.

Description

technical field [0001] The invention relates to the technical field of plane scroll spring processing, in particular to a preparation method of plane scroll springs. Background technique [0002] A flat scroll spring made of 60Si2CrVA material with a thickness of 7 mm and a width of 30 mm. The center of the scroll spring has a mounting opening at the other end of the outermost ring. Due to the large number of winding coils and the relatively complicated structure, it is difficult to prepare. It is prone to deformation and damage during the preparation process, and the output torque output is not good after manufacture. Stability and other issues, so it needs to be produced according to specific process steps during preparation, and a systematic test is carried out after the preparation is completed; the Chinese invention patent with the publication number CN107584055A discloses a method for preparing a coil spring. The number of coils of the planar scroll spring in the meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B21F35/00C21D9/02C21D1/773C21D1/58
CPCB21F35/00B23P15/00C21D1/58C21D1/773C21D9/02
Inventor 洪银炎
Owner 青海金泽恩新材料科技有限公司
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