Products Description
Tungsten evaporation boat can also be called evaporation boat, evaporation tungsten boat or coated tungsten boat. It is formed by high-temperature stamping of tungsten sheets.
The boat made of tungsten is very resistant to wear, corrosion, high temperatures, and good electrical and thermal conductivity.
Among vacuum evaporation devices, a widely used evaporation heating device is a resistance evaporation device. For resistance materials used for heating, they are required to have high operating temperature, low vapor pressure at high temperatures, no chemical reaction with evaporated substances, no outgassing or other pollution, and appropriate resistance. This leads to the fact that the resistance heating materials used in practice are generally some refractory metals, such as W, Mo, Ta, etc.
One of the issues to consider when choosing a heating device is the possibility of a chemical reaction between the substance being vaporized and the heating material. Many substances will react chemically with refractory metals. In this case, you can consider using a boat coated with a layer of Al2O3 on the surface to prevent it. In addition, it is necessary to prevent material splashing that may be caused by the outgassing process of the heated material.
The Tungsten evaporation boat is formed by stamping molybdenum sheets with a thickness of 0.1-0.5. The tungsten boat plays two functions in the resistance evaporation device: carrying and heating. We can design molds and produce finished tungsten boats according to the drawings provided by customers.
Production Introduction
chemical composition:
|
Impurity content (%), ≤ |
|||||||||
|
Al |
That |
iron |
Mg |
Mo |
In |
And |
C |
N |
O |
|
0.002 |
0.005 |
0.005 |
0.003 |
0.01 |
0.003 |
0.005 |
0.008 |
0.003 |
0.005 |
|
project |
Tungsten evaporation boat |
|
standard |
ASTM B760, gb-t 3875, ASTM B777 |
|
surface |
Electropolishing, alkali cleaning, cold rolling, polishing, brightening |
|
technology |
Stamping, rolling, forging, sintering, riveting, welding, folding |
|
Thicknesses |
bespoke sizes (upon request) or.005,.010, 0.15, and.020 |
|
application |
Metallization, electron beam spraying, sintering or heating |
By using superior, highly pure tungsten materials, cutting-edge methods, and unique treatment, we are able to ensure the excellence of our tungsten boats. We may also manufacture this product in accordance with your specifications. It is widely employed in metal evaporation, electron beam splash, and the heat process with sintering and annealing in the vacuum industry as a unique and efficient boat vessel.
We provide tungsten evaporation coils, liners, and crucibles for your thermal evaporation process in addition to Tungsten evaporation boat.
Products Application
Because tungsten boats have good electrical conductivity, thermal conductivity, high temperature resistance, wear resistance, and corrosion resistance, they are also widely used in the electronic industry such as picture tubes, mirrors, toys, household appliances, mobile phones, and electrical appliance casings. In addition, tungsten boats have high melting point, low saturated vapor pressure and stable chemical properties, and are widely used as resistive evaporation sources in the vacuum evaporation coating industry. Tungsten boat is an essential component in vacuum coating equipment. The choice of tungsten boat determines the quality of coating.
Tungsten evaporation boat are used for the vacuum evaporation ofmaterials that are in granular or pellet form.
They can be used to evaporate small lengths of wire or to evaporate materials whichwould not properly "wet" the surface of an evaporation filament.These boats are ideal foruse in small bell jars or other evaporation systems for prototype and experimental work.
Under an ideal (vacuum, dry) state, connect wires at both ends of the tungsten boat and energize it, place the low-melting-point metal in the recess in the middle, and when its temperature rises below 2000 degrees, the metal will evaporate into gas, and the metal plated on it will on the workpiece surface.
(a) Tungsten evaporation boat in which the evaporation material is placed for heating. (b) Schematic of the evaporation chamber showing the film deposition process.
Packing Delivery
The packaging of tungsten boats is divided into four steps:
1. Packed with moisture-proof paper.
2. Packed in kraft paper.
3. All sides of the wooden box are packed with foam plastic.
4. Wooden box packaging products.
We will choose the most convenient, most economical and safest transportation method for you.
1)International Express: DHL, TNT, EMS, UPS.
2) By air and by sea.
FAQ
Q: How long is your delivery time?
Q: What sizes are in stock right now?
Q: What makes us superior to other vendors as a supplier?
Q: Do you accept customization?
Q: Is it possible to maintain the same unit price as previously?
About US
Shaanxi Ehisen Technology Co., Ltd. is located in Baoji, China, known as the "Titanium Valley". It is a manufacturer of high-tech metal research and development, production and sales of non-ferrous metals, refractory metals and rare earth materials. As a manufacturer that develops and manufactures high-purity new materials, Ehisen relies on technical indicators and stable product quality. Its molybdenum products, tungsten products, and other products have successfully passed the testing and certification of many domestic and foreign companies, and have been applied in batches. Our products are mainly used in aerospace, rare earth smelting, electric light sources, chemical equipment, medical equipment, metallurgical machinery, smelting equipment, petroleum, and other industries.
Contact US
Tel :
+86 18700703333 Elsa lin
FAX : 0917-3381186
Email :
Add: No. 28, Gaoya Industrial Park, Gaoxin District, Baoji City, Shaanxi Province
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