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Zhejiang Jiayue Machinery Manufacturing Co.,Ltd
Add:No.7 Changxin Road, Yancang Subdisctrict, Dinghai, Zhoushan, Zhejiang, China
Tel:+86-0580-8808828
Fax:+86-0580-8808829
Mobile: +86-15958098091(Wechat, WhatsApp)

Contact Person: Jade Le

E-mail:Jiayuescrew@aliyun.com

Screw Barrel Heat treatment process

- Aug 24, 2018 -

1. Quenching and Tempering

Quenching is to make material heated, quenching, tempering, heat material has strong toughness and hardness.Quenching can also increase service life and reduce distortion.Quenched hardness after quenching and tempering: HB 260

2. Setting Treatment

The setting is to heat the screw that has been rough machining. The temperature is higher than the temperature of the atmosphere treatment to make the screw not deform or bend while atmosphere processing.

3. Nitrogen treatment

Hardness after nitridation:HVk900

Nitriding depth: 0.5-0.6mm

The hardness screw and barrel after gasification treatment can reach above HV900, and the nitrided screws and barrels have excellent wear resistance, fatigue resistance, corrosion resistance and high temperature resistance.

Screw barrel hardness after nitridation: HVk900

Screw barrel Nitriding depth: 0.5-0.6mm


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