High Purity W Boat Description

Material selection and processing

We first manufacture high-quality tungsten sheets through powder metallurgy and rolling, and then cut them into boat shapes and perform high-temperature stamping or welding to form the special structure required by customers. We will then perform high-precision surface treatment and quality inspection to extend the service life.

Characteristics

High melting point, high strength, high density, easy processing
Low evaporation rate, low vapor pressure, low thermal expansion coefficient
Corrosion-resistant, high temperature-resistant, wear-resistant, able to withstand huge mechanical and thermal stress
Long service life, also has good electrical and thermal conductivity

Tungsten Boat For Evaporation Application

1. Vacuum coating industry:

For evaporation coating, such as aluminum, copper, gold, silver, and other metals.

It is suitable for the evaporation of powder, particles, high price metal, and high-temperature refractory metal powder.

Can handle indium wire, tin wire, aluminum wire, copper wire, and other low melting point materials.

2. Electronics industry:

Used for coating picture tubes, mirror making, toys, household appliances, etc.

It has good electrical and thermal conductivity and high-temperature resistance, suitable for applications in high-temperature environments.

3. Sintering furnace and vacuum annealing industry:

Containers used in sintering or vacuum annealing processes.

Able to handle high-temperature refractory materials to ensure uniform heating and annealing of materials.

Thermal Evaporation Boat Type

Sort by shape

Flat groove boat: suitable for highly wettable materials.

V-groove boat: suitable for materials with low wettability.

Oval groove boat: suitable for materials in a molten state.

Spherical groove boat: suitable for expensive materials such as gold and silver.

Narrow groove boat: This design prevents the evaporation material from getting on the filament clamp

Classification by processing technology

‌Stamped Boat‌: Made by high-temperature stamping, widely used in the vacuum coating industry and boat industry for sintering in sintering furnaces or vacuum annealing‌.

‌Folding Boat‌: Folded in shape, also suitable for vacuum coating and sintering processes‌.

‌Welded Boat‌: Made by welding process, with high strength and stability‌.

‌Riveted Boat‌: Tungsten Foil Boats made by riveting process, suitable for occasions where high strength connection is required‌

High Purity W Boat Dimension

Material	W1,W2
Technique	Extruding, Forging, Rolling, Machining, Sintering
Purity	≥99.95%
Thickness	0.2-0.5mm
Length	50mm-100mm
Width	7mm-30mm
Density	19.2g/cm³
Melting Point	3410 °C
Surface	Bright, Polished, Black, Chemical Clean
Standard	ASTM, AISI, GB
Certification	ISO9001