Influence of carbon migration and high temperature performance in manhole welding. When dissimilar steel welded joints are subjected to post-weld heat treatment or work at elevated temperatures, carbon migration occurs near the fusion line, resulting in a decarburized layer of low-carbide-forming elemental pearlitic steel, and adjacent chromium-nickel austenitic welds Carburized layer.

2022

2022-07-01

The production use and technological process of manhole flange!

The sealing failure of the manhole flange sealing joint is mainly manifested in leakage. In pipeline systems and devices in various industries, the sealing failure of flange joints can cause a lot of waste of energy and raw materials. If it is more serious, it will lead to scrapped equipment, shutdown of production, casualties and serious environmental pollution.

2022

2022-07-01

Several surface treatment methods for manhole flanges!

Manhole flange storage tanks, containers, equipment accessories, especially in dairy, pharmaceutical, chemical, brewing and other equipment are essential accessories. The surface treatment of the manhole is not only related to its appearance, especially some dairy equipment will also affect its use. Therefore, its surface treatment is also a very important procedure in production.

< 1 2 3 > proceed page

Service Hotline:

Address: No. 619, Hongrui Road, Shacheng street, Wenzhou Economic and Technological Development Zone, Zhejiang Province

Tel：0577- 85828606

Phone：+86 13967777397

+86 13738325552

E-mail：chinawanmu@163. com