Tungsten crucible is a container made of tungsten material, which is used to contain and process chemicals or metals at high temperatures. Tungsten (tungsten) is a very important metal material with high melting point, high density, high hardness, high corrosion resistance and good stability. It has a very wide range of uses, such as making filaments, thermocouples, vacuum furnaces, high-temperature furnaces, high-speed cutting tools, aerospace devices, radioactive sources, and so on. In the high-tech field, tungsten and its alloy materials are also widely used in the nuclear industry, semiconductors, electronic devices, medical equipment and high-temperature alloys. Generally speaking, tungsten is a very important and irreplaceable metal material. Tungsten alloy crucibles are ideal for high-temperature vessels due to their high melting point (3422°C), high hardness, corrosion resistance and high chemical stability.
High-quality tungsten crucibles are widely used in many industrial and laboratory applications, such as vacuum melting, crystal growth, alloy refining, high-temperature chemical reactions, etc. It can also be used to prepare advanced ceramics and electronic components, such as LEDs and solar cells.
The price of tungsten crucible is related to factors such as its size, shape and manufacturing process. When purchasing a tungsten alloy crucible, it is recommended to choose the appropriate size and shape according to the application needs, and ensure reliable quality to ensure safety and production efficiency.
1. Specification and Tolerance
|
Delivery condition |
Size(mm) |
Tolerance(mm) |
||
|
Diament(mm) |
High(mm) |
Diament(mm) |
High(mm) |
|
|
Sintering |
10-500 |
10-600 |
±5 |
±5 |
|
Forging |
10-130 |
10-200 |
±1 |
±2 |
|
Sintering and Mechining |
10-450 |
10-500 |
±0.5 |
±1 |
2. Crucible Drawing
3. The process of making tungsten crucible is as follows
1) Preparation of raw materials: Tungsten metal is used as the main raw material, and other alloying elements can be added. Mix the raw powder according to the proportion of ingredients.
2) Prepare the mold: fill the raw material into the mold and perform pre-pressing preparation.
3) Screening of raw materials: screen the properly pre-pressed raw material powder according to the required size. The screened raw materials can better fit the shape of the high-quality tungsten crucible.
4) Injection molding: Injection molding of the screened raw material powder under the protection of vacuum or argon to make the blank of the crucible.
5) Heat treatment: Carry out high-temperature heat treatment on the formed tungsten alloy crucible blank to eliminate internal residual stress and defects.
6) Precise machining: Precise machining and grinding of the heat-treated blank can make a reliable tungsten crucible.
7) Inspection and packaging: Various inspections are carried out on the finished tungsten alloy crucible, and it can be sold after packaging.
The whole production process needs to go through many processes, among which heat treatment and precision machining are the key steps, which can determine the performance of the tungsten crucible.
4. Products Display
5. Tungsten crucibles are widely used in melting, heat treatment, and high-temperature chemical reactions under high-temperature and ultra-high vacuum environments. Here are some common applications
1) Rare earth metal smelting: It can be used for smelting and refining rare earth metals (such as yttrium, lanthanum, cerium, etc.).
2) Casting: It can be used to prepare casting raw materials for various metal materials, such as copper, aluminum, zinc, iron, etc.
3) Heat treatment: It can be used for high-temperature heat treatment, such as rapid cooling, annealing, homogenization, etc.
4) Optical fiber manufacturing: It can be used for melting optical fibers.
5) Semiconductor industry: It can be used in the manufacture of semiconductor materials.
6) Chemical reactions: It can be used for chemical reactions at high temperatures, such as oxidation, reduction, hydrogenation, etc.
In conclusion, due to the excellent properties of tungsten such as high melting point, high density, high corrosion resistance, and high strength, tungsten crucibles can be used in many industrial applications under high-temperature environments.
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