Patent · US Expired

Process for the manufacture of an injection mould

US4832254A · kind A · utility

12Cited by

7References

7Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Helmut Peuke · Hohentann, DE
Gerd Riedel · Munich, DE
Lothar Steinsdorfer · Meiningen, DE

Key dates

Filing date	Sep 14, 1987
Grant date	May 23, 1989
Priority date	—
Expiry date	Sep 14, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C2033/023
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An injection mould having several gating points (3) which are all supplied with moulding material at the same time has a hot runner manifold (2) situated in a composite body. The composite body is composed of several plates (9,11,12,13,9') in which both the system of hot runners (2) and the tubular heating elements (10) required for heating are formed, starting from the surfaces of separation (F1, F2, F3, F4), whereupon the individual surfaces are joined together by diffusion welding after they have been pretreated as required (FIG. 2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.