Melting and Holding Furnaces for Die Casting （并控制压铸熔炉融化）.pdfVIP

Melting and Holding Furnaces for Die Casting Edited by William A. Butler Bloomington, Indiana Recent increases in energy costs have prompted renewed • Advantages of gas fired furnaces. interest in what can be done to minimize energy usage o Least cost per BTU of fuel. in die casting plants. Since more than 50 percent of the o High power for fast melting capability. energy used in a plant can be required for metal melting o Very large melting and holding furnaces are practical. and holding, this area of the die casting plant is being o Suitable for stack melting for improved efficiency and examined once again. convenience. A recent report sponsored by the U.S. Department of Energy* (DOE) showed that the seemingly simple pro- o Reliability of power source over electric power outages. o Lower initial cost. cess of melting metal – heating metals to turn them into liquids for pouring – is actually very complex, involving a series of steps that incur material and energy losses. The • Disadvantages of gas fired furnaces. o Least efficie