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Injection molding process for making laboratory test-tubes and mold to be used in the molding process thereof
Injection molding process for making laboratory test-tubes and mold to be used in the molding process thereof
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机译:用于制造实验室试管的注射成型工艺及其成型工艺中使用的模具
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摘要
A laboratory test tube is formed between male and female mold elements by injection of molten plastic material. The female element has a bottom element formed by first and second alternating complementarily shaped wedges. At least the second wedges are able to move under the pressure of the molten plastic from a rest position to an operative position in order to form slits which allow air, but not molten plastic, to exit from the mold.
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