Why use graphite? Most people wouldrecognize graphite as the black stuff in apencil. The graphite for the GPM processis of a premium grade with a mediumgrain and extremely low porosity. GPMmanufacturers purchase graphite in billetsor blocks. These are cut to size and preci-sion machined to the dimensions requiredfor the part to be cast.Graphite has many qualities that makeit an ideal material for a mold. The mate-rial is extremely stable; it won’t warp,twist or check when metal is injected. Itexhibits a lower coefficient of expansion,ily used to carry the electricity that melts scrap iron and steel in electric arc furnaces. As an increasing proportion of global steel is made using electric arc furnace, the secondary production of steel becomes the major consumption of graphite electrodes. Additionally, the graphite electrode is also used in melting products in smelting furnaces, non-ferrous metals, ceramic products, and even waste recycling industry.
What Graphite Mould Category We Offer?
A specific application may require Graphite Mould in order to match the existing furnaces and reduce overall melting cost. Generally, according to the useing and type, Graphite can be divided into the following two category:
The Graphite Crucibles can withstand the high temperature, and has good resistance to chemical erosion and thermal shock. Especially graphite crucible is ideal for the melting of aluminum, copper and other metals like gold and silver.
Graphite mould are widely used in Brass continuous casting ,Red copper continuous casting mould, Continuous casting mould for jewelry of gold, silver, platinum, etc,Steel and stainless steel continuous casting mould.
How to Produce the Graphite Electrodes ?
The mould are made from petroleum coke after it is mixed with coal tar pitch. They are then extruded and shaped, baked to carbonize the binder (pitch), and finally graphitized by heating it to temperatures approaching 3000 °C, at which the carbon atoms arrange into graphite. They can vary in size up to 11 ft. long and 30 in. in diameter.
Please Call HP Graphite if you want a consultation on the most cost efficient alternative.