Tungsten - High Temperature Furnace Parts

HEXON supplies metallic hot zone as a clean solution for thermal processing industries, especially for construction of atmosphere controlled furnace, MIM furnace, HIP furnace any and other low or ultra high vacuum furnace. These furnaces are commonly used to process sapphire crystal, quartz, metals and ceramics by sintering, annealing, brazing, quenching, hardening, tempering, bonding and other heating treatment methods.

From simple milled products such as sheet, rod, tube and wire to complex assembled hot zone, HEXON can provide a wide range of products to fit your specific application for your furnace construction.

Available materials for furnace parts

● 99.95% pure tungsten and molybdenum

● MoLa (La2O3from 0.3% to 1.2%)

● TZM (titanium-zirconium-molybdenum)

● Tantalum

Our furnace parts range

● Sheet, rod, wire and tubing

● Heating elements made in form of rod, sheet, ribbon, wire and mesh

● Heat shield panels

● Carriers, boats, trays and crucibles

● Rails and racks

● Parts for supporting, positioning and mounting

● Screw, nut and washer

● Pins, rivets, hooks and other spare parts

● Special form made to order

Our advantages for hot zone and related components

● We can supply individual parts or assembled hot zones according to given drawings 

● Ceramic insulation can be tailor-made or provided by our customers

● Round, rectangular, vertical, horizontal or custom-shaped configuration hot zones available 

● High purity

● Low tolerance, high precision

● Long working life

● Our hot zone parts which made of TZM and MoLa are re-crystallized and retain superior high temperature performance, improved strength, better formability, greater resistance and enhanced dimensional stability

An Introduction of metallic hot zone

Hot zones form the heart of every vacuum furnace and usually are made of graphite or metals. Metallic hot

Vacuum furnace hot zones consist of uncountable parts but most are constructed by four major components: heating elements, charge carriers, hearth assemblies and heat shields.

Heating elements ensure the necessary temperature, charge carriers position the material to be treated in the furnace, hearth assemblies allow for loading truck operation and the heat shields minimize the amount of heat that escapes from the furnace chamber.

Metallic hot zone highlights

● Long service lives

● Rapid heating and cooling

● Clean and free of carbon

● Optimum process purity

● Short pumping times

● Excellent vacuum conditions

● Uniform heat distribution