发明名称 |
Thermoplastic hose extrusion - with divergent cooling air nozzles in taper mould after cone-shaped extrusion |
摘要 |
Hoses are extruded from thermoplastic foil material through a divergent conical die with a central air inlet. A stack of cooling rings forms a divergent mould through which cooling air escapes through channels at an angle of 50 degrees-150 degrees (100 degrees-150 degrees) to the conical surface. After solidification, the hose is folded flat and extracted through pairs of rollers. This results in a greater uniformity of the wall thickness of the extruded hoses. The resin is kept clear of the mould as long as it is not solidified. |
申请公布号 |
NL7500657(A) |
申请公布日期 |
1976.07.22 |
申请号 |
NL19750000657 |
申请日期 |
1975.01.20 |
申请人 |
MOBIL OIL CORPORATION TE NEW YORK. |
发明人 |
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分类号 |
B29C47/00;B29C47/88;B29C47/90 |
主分类号 |
B29C47/00 |
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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