Quartz Glass Production

Quartz glass or quartz material is produced in special high-temperature furnaces due to their high melting temperatures (approx. 2000°C). The heart of such a furnace consists of a melting crucible, which is continually filled with quartz sand and heated to melting temperature.The melting crucibles therefore consist of riveted or pressed/sintered (seamless) tubes made of molybdenum or tungsten or a combination of Mo/W.

The quartz glass tubes or rods are removed through an orifice. The heating system essentially consists of tungsten mesh or rod heating elements. To achieve or regulate the desired dimensions, a plug and plug pole made of refractory metals is necessary in addition to the orifice plate.
Areas of application for quartz glass are lighting technology, the semiconductor industry, and the fiber-optic technology. Quartz material is used for temperature measurements and also in the foundry industry.

T&D supplies the following products for the Quartz industry

● Melting Crucibles and Orifice Plates

● Mandrels and mandrel shafts

● Heating Elements

● Accessories (Filling Funnels, Shields, Fastening Parts)

We provide glass melting electrodes; molybdenum sheets for tanks; forged mandrel shafts; molybdenum and tungsten nozzles; and molybdenum stirrers. Mo/W crucibles for quartz; and tungsten crucibles for monocrystal growing.

The purity of our molybdenum electrodes is 99.97% min or 99.99% min purity.

Molybdenum Products Chemical Specifications:

● Moly 99.97% min Grade

• PPM Max

• C 30; Ni 10; Fe 60; H 10; N 5; O 40; S 10; P 20; Ag 10; Al 10; As 5; Ba 5; Ca 20; Cd 50; Co 20; Cr 20; Cu 20; K 10; Mg 10; Mn 2; Na 10; Nb 10; Pb 10; Si 30; Ta 20; Ti 10; W 250; Zn 10; Zr 10

● Moly 99.99% min Grade

• PPM Max

• C 15; Ni 5; Fe 30; H 3; N 2; O 15; S 2; P 10; Ag 5; Al 5; As 1; Ba 1; Ca 5; Cd 2; Co 3; Cr 3; Cu 5; K 3; Mg 5; Mn 1; Na 2; Nb 5; Pb 3; Si 5; Ta 10; W 100; Zn 5; Zr 2

• Density: 10.20 g/cc

• Optimized Creep Strength

• High Corrosion Resistance

• Diameter Size is from 25mm to 110mm.

• Length is From 1000mm to 3000mm.

• Customer-specific Threads, Cooling Drills, and Customized Coatings

We can stock your needed molybdenum products in our Clifton Heights, PA warehouse. Quick delivery is available.