| 摘要 |
A blank strip of a thermoplastics material is formed into an article having a high quality surface finish by subjecting the strip (12) to a preliminary moulding step which imparts the surface finish to the blank which is essentially that required for the finished article and then subjecting the strip to a final moulding step which imparts the required moulded shape. The two steps may be performed in a single die block (17) having two distinct sections (21) and (22) for the two steps respectively. The strip (12) conveniently is urged through the die block (17) by hydrostatic pressure generated by pump (14) in a closed tube (10) leading to the die block (17), the pump delivering to the tube (10) a liquid which also serves as a lubricant. Following moulding, the strip is suitably supported by a guide (23) and then rolls (24), whereafter the strip is force-cooled by water sprays from nozzles (26). <IMAGE>
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