FIELD: process engineering.
SUBSTANCE: invention relates to production of plastic articles. Proposed method comprises forming the part from polyethylene or polypropylene and mechanical flanging of part edges at flanging temperature higher than ambient temperature but lower than that of material phase alpha-transition.
EFFECT: reduced elastic recovery of flanged part and plastic deformation in flanging section.
15 cl, 30 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| SEALING STRUCTURE | 1999 |
|
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| MOULDING OF CONTAINERS | 2005 |
|
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| CAP APPLIANCE | 2007 |
|
RU2423304C2 |
