Chill vent
US5913356A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Dec 11, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A chill vent made of copper or copper alloy has a concave section and a convex section, each being subjected to removal of flat parting portions on both side surfaces, and a gas exhaust passage is formed over the entire width region. These gas exhaust passage portions have side surfaces and back surfaces which are enclosed in hard U-shaped guide frames. It is possible to effectively avoid occurrence of leakage or flashing of molten metal due to a plastic deformation of the chill vent by a mold fastening force applied upon assembly of a die-casting mold, which may occur when a copper or copper alloy having a superior cooling property as the material for chill vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.