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Treatment of soft spots on the surface of graphite rod

Graphite rod is an important non-metallic product for electrode processing, which is formed by extrusion of graphite, carbon and appropriate adhesive. Why is the surface of the graphite stick soft? The following small series for you to analyze the reasons, and give solutions.

1、 Quenching heating

 Cause: after graphite rod die is quenched and heated, the cooling quenching medium is not selected properly, because the quenching medium is aging or has many impurities.

Solution: for cooling after quenching heating, please select the appropriate cooling medium, which needs to be used frequently and needs to be replaced or filtered regularly.

2、 Before heat treatment

Cause: local decarburization before heat treatment, or rust spots and oxide scales on the surface.

Solution: when quenching and heating, please pay attention to protect the surface of graphite rod mold, and try to use salt bath furnace, vacuum furnace and protective atmosphere furnace for heating; Rust and scale should be removed before heat treatment.



Related News

Notices Before Using Graphite Crucible Advantages of graphite mould The Advantages of the Graphite Material in Mold EDM Processing The Prevention for Defects in the Heat Treatment of Graphite Molds


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High Purity Graphite Material Medium And Coarse Graphite Material Isostatic Pressing Graphite Material
Graphite Particle
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Graphite Block
High Purity Graphite Block Electrolytic Graphite Block Graphite Block For Vacuum Furnace
Graphite Plate
Graphite Baffle Plate Graphite Anode Plate Graphite Mill Liner Plate High Purity Graphite Plate Isostatic Pressing Graphite Plate
Graphite Ring
Wear-resistant Sealing Graphite Ring Graphite Ring
Graphite Rotor
Anti-oxidation Graphite Rotor Graphite Rotor
Graphite Rod
High Temperature Resistant Graphite Rod Oxidation Resistant Graphite Rod Graphite Degassing Rod
Graphite Electrode
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Contact Us

Email Us: zhongtaishimo@163.com
Call us: 0373-6812218
Yingda road west, Xiaotun Village, Jinhe, Huixian City, Henan Province
Products
Graphite Material
Graphite Particle
Graphite Block
Graphite Plate
Graphite Ring
Graphite Rotor
Graphite Rod
Graphite Electrode
Graphite Crucible
Graphite Products For High Temperature Sintering
Industries
Company
Company Profile
Resources
Blog Library/FAQs

Copyright ©Huixian Zhongtai Abrasives Mould Manufacturing Co. , Ltd. All Rights Reserved.

Sitemap  /  Privacy Policy