Method for producing a sand core

US6505671B1 · kind B1 · utility

Assignee

• Hayes Lemmerz International, Inc. · US

Inventors

• Kenneth D. McKibben · Defiance, US
• Daniel D. Minor · Cadillac, US
• Alan P. Gould · Omer, US
• Mark Salgat · Pinconning, US
• Diane Zekind · Farmington Hills, US
• Karl D. Voss · Standish, US

Key dates

• Filing date: Dec 28, 2000
• Grant date: Jan 14, 2003
• Expiry date: Dec 28, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C9/123
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for producing a sand core includes the following steps: (a) providing a casting mold having a mold cavity, the casting mold including at least one first conduit and at least one second conduit; (b) providing a sand core disposed in the mold cavity; (c) providing a supply of conditioning gas to the casting mold, the conditioning gas being supplied to the casting mold through at least one of the first and second conduits; (d) providing a controller connected to the first conduit and the second conduit to selectively control the supply of conditioning gas; (e) providing a gas exhaust unit operatively connected to the casting mold; (f) operating the gas exhaust unit to cause the conditioning gas to be moved through the sand core; and (g) removing the sand core from the casting mold.