The design of gasketed joints is critical for low-emission applications. For better control and elimination of unwinding of spiral wound gaskets, a fully-enclosed gasket cavity is desirable.
Spiral welded pipe is a strip coil as raw material, often warm extrusion molding, to automatically double-wire submerged arc welding process double-sided spiral welded pipe joints.
螺旋焊管是以带钢卷板为原材料，经常温挤压成型，以自动双丝双面埋弧焊工艺焊接而成的螺旋缝钢管。
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There are four key points of plate spiral stair design, and they are model building, inner force calculation, overall stability analysis and joints design between the stair and the main structure.