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Taicang Dafa Spring Industry Co., Ltd

Address: Taicang City, Suzhou Liuhe Town, East Gate Industrial Park Road, on the 3rd

Tel: +86 512-53605758

Contact: Mr. Zhang

Mobile: 18952428851

Fax: +86 512-53600758

Website: www.yongliylc.com

E-mail: tctafa@tafa.cn

Zhangrenzhang@aliyun.com


Precision spring heat treatment

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Precision spring heat treatment

Data:2016-11-28 00:00 Source:http://www.yongliylc.com Click:

Taicang spring plant thermoformed spring heat treatment process - in this way most of the spring forming heat and heat treatment will be combined together, and most of the coil spring is heat-treated after the heat treatment. This spring steel heat treatment is quenching + tempering in the tempering, heat treatment organization for the tempered torsite. The elastic limit and the yield limit of this structure are high, and have a certain toughness.

First, the working conditions of precision springs, as well as materials and heat treatment requirements 1. A simple shape, smaller cross-section, the spring force is not

Requirements: 65 785-815 ℃ oil quenching, 300 ℃ 400 ℃, 500 ℃. 600 ℃ tempering, the corresponding hardness HB512, HB430, HB369, 75,780-800 ℃ oil or water quenching, 400-420 ℃ tempering, HRC42-48.

2. Medium load of large springs

Requirements: 60Si2MnA 65Mn 870 ℃ oil quenching, 460 ℃ tempering, HRC40-45 (agricultural machinery spring 65Mn quenching and tempering HB280-370)

3. Heavy-duty, high spring, high fatigue limit of large-shaped leaf spring and coil spring requirements: 50CrVA, 60SiMnA 860 ℃ oil quenching, tempering 475 ℃, HRC40-45

4 in a number of alternating load of 8-10mm diameter coil spring

Requirements: 50CrMnA 840-870 ℃ oil quenching, 450-480 ℃ tempering, HB387-418 5. locomotives, vehicles, coal-water vehicles or board spring

Requirements: 55SiMn, 60Si2Mn HRC39-45 (hb363-432) (Jiefang brand car spring: 55Si2Mn HB363-441)

6. Vehicle and buffer coil spring, automobile tension spring

Requirements: 55Si2Mn, 60Si2Mn, 60Si2CrA quenching and tempering, HRC40-47 or HB370-441

7. Diesel pump plunger spring, nozzle spring, agricultural diesel engine valve spring and medium-sized, heavy-duty vehicle valve spring and plate spring requirements: 50CrVA quenching, tempering, HRC40-47

8. Coil and flat spring, tap water spring and seawater-etched spring working under high temperature steam, Φ10-25mm Requirement: 3Cr13 HRC39-46 4Cr13 HRC48-50 HRC48-49 HRC47-49HRC37-40 HRC31-35 HRC33 -47 9. in the acid and alkali work under the spring


Related Tags:Kunshanspringplant

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