专利内容由知识产权出版社提供
专利名称：Method for the manufacture of externally
coated tube from steel strip and tube madeby the method
发明人：de Zeeuw, Johan,Barendregt, Jan,Vermeulen,
Jacob Cornelis
申请号：EP79200005.1申请日：19790105公开号：EP0003369A1公开日：19790808
专利附图：
摘要：Externally coated steel tube is made from steel strip by longitudinally folding
and welding the strip to form the tube (200), preheating (205) the tube and applyingpowder (206) to the exterior of the preheated tube. The tube is then baked at a highertemperature before cooling. In order to achieve an even and continuous coating whenusing thermosetting material as the coating powder, the temperature given to the tubeby the preheating (205) is such as to cause the coating powder to melt and spread outimmediately on application to form a substantially continuous coating, before substantialcuring of the coating material occurs. Suitably, this is provided by passage of the tubethrough a box (207) which maintains the temperature of the tube.
申请人：Estel Buizen B.V.
地址：Wilhelminakanaal Zuid 150 Oosterhout NL
国籍：NL
代理机构：van Buytene, Arie Jacobus, Ir.
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