| 摘要 |
The process consists in inserting into a mould ( 1 ) a metal insert ( 4 ) having ends ( 4 a) spaced from each other, in injecting plastic material in a fluid state into the mould ( 1 ) to form a shaped body ( 7 ) incorporating the metal insert ( 4 ), and in providing at the ends ( 4 a) modified areas ( 9 ) without plastic material, to permit shrinkage of the shaped body ( 7 ) being formed without generating combined bending and compressive stress on the metal insert ( 4 ). The mould comprises a moulding cavity ( 3 ) designed to house a metal insert ( 4 ) having ends ( 4 a) spaced from each other, devices ( 5 ) for injecting plastic material into the moulding cavity ( 3 ) to produce a shaped body ( 7 ) incorporating the metal insert ( 4 ), and operating devices ( 8 ) designed to define at the ends ( 4 a) of the metal insert ( 4 ) modified areas ( 9 ) without plastic material.
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