Method for tempering a moulding tool
US5460761A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1993 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Dec 16, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/1658
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method for tempering a moulding tool intended for production of products of natural or synthetic polymers, which moulding tool includes one or more moulding parts made of sintered metal with communicating pores obtained by pressing at a high pressure and sintering at a high temperature of a powdered material, in which moulding part or parts a moulding cavity has then been made, whereby preferably the outer envelope surface of the moulding tool is tight. The method comprises tightly connecting one or more channels, capillary tubes or the like through the tight outer envelop surface to the mould material of the moulding tool situated inside, which material contains a large number of small communicating pores and feeding a gas having a suitable state and a suitable temperature through the channels thereby causing a rapid tempering of the moulding tool to a desired extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.