Method for controlling the filling of a mold cavity of a casting machine

US6581673B1 · kind B1 · utility

Assignee

• Hayes Lemmerz International, Inc. · US

Inventors

• Kenneth D. McKibben · Defiance, US
• Daniel D. Minor · Cadillac, US
• Robert L. Macheske · Tawas City, US
• David Good · Chelsea, US
• Thomas J. H. Rozich · Au Gres, US
• Mark Salgat · Pinconning, US
• Brandon Schnettler · Au Gres, US

Key dates

• Filing date: Dec 29, 2000
• Grant date: Jun 24, 2003
• Expiry date: Dec 29, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D18/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for producing a cast article comprising the steps of: (a)providing a casting apparatus having a mold, a casting chamber containing a molten metal under pressure and a fluid under pressure, the casting apparatus having a first supply port for supplying the molten metal to the casting chamber and a second supply port for supplying the fluid to the casting chamber; (b) supplying the molten metal to the first supply port; (c) supplying the fluid to the second supply port; (d) determining the amount of the molten metal in the casting chamber as a variable V1; (e) determining the amount of the fluid in the casting chamber as a variable V2; (f) determining the amount of humidity in the casting chamber as a variable V3; (g) determining the amount of the fluid entering the casting chamber as a variable V4; (h) determining the pressure of the fluid in the casting chamber as a variable V5; (i) determining the amount of the molten metal needed to produce a cast article in the mold as a variable V6; (j) determining the change in the pressure of the molten metal in the mold as a variable V7; (k) sensing the position of the molten metal with respect to the mold as a variable V8; (l) prov…