Hard metals - Import export

In the WTH 200.2, the following materials can be reliably brazed with active materials in a high vacuum. PCD (polycrystalline diamond) MKD (monocrystalline diamond) CVD diamond (chemical vapour deposition) PCBN (cubic boron nitride) and Hard metals as well Ceramics In the high-vacuum furnace WTH 200.2, our customers manufacture indexable inserts, dressing wheels, rotating tools and turning tools with blades made of natural diamond or MKD for polish turning. The vacuum brazing is flux-free. In the so-called active brazing process, titanium allows wetting of the surfaces. While cemented hard metals can also be inductively brazed, diamonds, CVD and ceramics must be actively brazed in a vacuum. When brazing PCD and PCBN, not only the hard metal substrate but also the PCD or PCBN layers are wetted.

COD Sinter-HIP furnaces combine the dewaxing, vacuum-sintering and subsequent isostatic densification under pressure gas up to 100 bar of sinter parts made of hard metals or ceramics. COD furnaces optimize all the necessary process functions and combine them in one production equipment and process cycle in an optimal, fully automatic and reproducible manner. Applications: Vacuum- and pressure sintering of hard metal products, PM-high-speed steels and ceramics. Benefit for users: • Low operating costs due to low power and cooling water consumption • High product quality due to excellent temperature homogeneity in vacuum, during pressure gas injection and pressure sintering. • Rapid startup at user's site and productivity "from day one" due to complete pre-assembly and fully hot shop-test and TÜV-acceptance in the factory • Service and maintenance friendly design, high up-time

OV heat treatment furnaces are high performance most efficient furnaces with a wide working-temperature and application range. Due to the compatibility with all kind of process gases and the fully automatic process runs they are especially suitable for the economic application in industrial productions for example to produce hard metals or the cleaning and purification of graphite. Applications: • operating temperatures up to 1.100 °C: heat treatment, brazing, reduction, degassing and debinding • operating temperatures up to 1.350 °C: heat treatment, brazing, degassing, debinding and sintering • operating temperatures up to 1.600 °C: debinding and sintering of hard metals • operating temperatures up to 1.800 °C: sintering of non-oxydic ceramics • operating temperatures up to 2.000°C: CVD- and pyrolytic processes, degassing, cleaning, sintering • operating temperatures up to 2.400 °C: CVD-processes, degassing, cleaning • operating temperatures above 2.