Copper Cold Hearth for Electron Beam Melting (EB)

Cold hearth, copper cooling bed and overflow clip for Furnace EBCHM,EBCHR,PACHM —HZC successfully produced the copper cold hearth core parts of ALD EBCHR furnace, and optimized design of water channels. HZC produced the cooling bed and overflow clip by forging and machining process. Material is pure copper 99.9% .  The cold hearth is mainly used for EBCHR, EBCHM, PACHM Furnace  to remelting and refining  refractory and reactive metals and alloys.  EB furnace  is mainly employed for the production of refractory and reactive metals (tantalum, niobium, molybdenum, tungsten, vanadium, hafnium, zirconium, titanium) and their alloys.

Electron beam melting is distinguished by its superior refining capacity and offers a high degree of flexibility of the heat source. Thus, it is ideal for remelting and refining of metals and alloys under high vacuum in water-cooled copper molds. Today the process is mainly employed for the production of refractory and reactive metals (tantalum, niobium, molybdenum, tungsten, vanadium, hafnium, zirconium, titanium) and their alloys. It plays an important role in manufacturing of ultra-pure sputtering target materials and electronic alloys and the recycling of titanium scrap.
 Electron Beam Cold Hearth Refining (EBCHR)
is of great importance for processing and recycling of reactive metals. The feedstock is drip-melted in the rear part of a watercooled copper hearth from where it overflows into the withdrawal mold. During the dwell time of the molten material in the hearth system gravity separation of highand low-density inclusions (HDI, LDI) can be achieved in addition to the refining mechanisms described above. The hearth must be properly sized to provide sufficient dwell time of the molten metal in the hearth in order to permit efficient gravity separation of HDIs and LDIs. Larger hearth melting systems are equipped with a larger number of EB guns to provide the required power and energy distribution.

1. Electron beam drip-melting of tantalum, 2. EB cold hearth refining, 3. Electron beam floating zone melting EB Cold Hearth Production Furnaces for production of reactive metal ingots and slabs, including material recycling. Ingot weights up to 15 tons, total beam power above 3 MW with up to 6 guns. Copper Cold Hearth for Electron Beam Melting (EB)  Copper Cold Hearth for Electron Beam Melting (EB)  Copper Cold Hearth for Electron Beam Melting (EB)  Copper Cold Hearth for Electron Beam Melting (EB)