1. Defect characteristics
Unfused refers to the phenomenon that the weld metal is not completely melted and bonded with the base metal or between the layers of the weld metal.
Failure to penetrate ...
Sand casting: Sand casting commonly used in the valve industry can also be divided into various types of sand such as wet sand, dry sand, water glass sand and furan resin no-bake sand according to ...
With the non-reading anti-war of thermal spraying technology, more and more new spraying materials and new process technologies continue to appear, and the performance of the coating is diverse and...
There are many kinds of butterfly valves, and there are many classification methods.
1. Classification by structural form
(1) concentric butterfly valve; (2) single-eccentric butterfly valve; (3) d...
On the occasion of the joyful and peaceful Christmas, TWS’s a leading domestic valve manufacturing company, uses its professional approach to ensure the safety and reliability of fluid control, and...