Most of the water pipelines in urban sewage treatment projects are buried steel pipelines. The corrosion problem is a major problem in sewage treatment projects.
Read moreDefects that are easy to produce in the submerged arc welding zone are pores, hot cracks, and undercuts.
Read moreHot rolling is relative to cold rolling. Cold rolling is rolling below the recrystallization temperature, while hot rolling is rolling above the recrystallization temperature.
Read moreForged pipe fittings are a product with good mechanical properties in flange products. Its raw material is generally a pipe blank, which is then cut and then continuously beaten to eliminate defects such as segregation and looseness in the steel ingot.
Read moreIn the welding operation of stainless welded steel pipe manufacturers, the market faces three common problems: unqualified seams, incomplete penetration or burned through, cracks and pores.
Read moreHigh-frequency welding is a kind of induction welding (or pressure contact welding). It does not require weld fillers, no welding spatter, narrow welding heat-affected zone, beautiful welding shape, good welding mechanical performance and other advantages.
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