发明名称 |
VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON BESCHICHTETEM ROHRMATERIAL AUS STAHLBAND |
摘要 |
Lengths of polymer-coated tubing are continuously produced from steel strip by roll-forming and welding at a fast rate of speed. The welded tubing is sized, cleaned and heated to raise its temperature to that desired for applying a polymeric coating. After coating, the tubing is heated to a desired baking temperature and then cooled. The tubing is unsupported from a location upstream of the coating station until cooled. Elongated endless belts grip the tubing over a longitudinal distance of at least about 2 feet and pull the tubing in a controlled manner to maintain the tubing in precise spatial location throughout its heating, coating and baking. |
申请公布号 |
AT366301(B) |
申请公布日期 |
1982.04.13 |
申请号 |
AT19760003332 |
申请日期 |
1976.05.06 |
申请人 |
ALLIED TUBE & CONDUIT CORPORATION |
发明人 |
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分类号 |
B05C9/14;B05C13/02;B05C19/00;B05D3/02;B05D7/00;B05D7/14;B21C37/06;B65H51/14;(IPC1-7):21D21/00 |
主分类号 |
B05C9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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