Molybdenum crucible is a melting vessel made of high-purity molybdenum material, usually used for chemical and physical experiments at high temperatures. It has a very high melting point and corrosion resistance and good oxidation resistance in an oxygen atmosphere. Molybdenum metal crucible can be used to prepare high-purity metal or semiconductor materials and is widely used in the fields of electronics, aerospace, and high-temperature processes.
Molybdenum is a metal element with atomic number 42 and the chemical symbol Mo. It is an atomically composed metallic gray solid with good corrosion resistance, a high melting point, and good mechanical properties.
1. Physical Properties
- Density: 10.22 g/cm3
- Melting point: 2623°C
- Boiling point: 4639 °C
- Thermal conductivity: 138 W/m·K
- Conductivity: 17.0 × 10^6S/m
2. Chemical Properties
- Not easily oxidized, but will be oxidized to form oxides at high temperatures and air.
- In the presence of strong oxidizing agents, it can be oxidized to MoO2 or MoO3.
- It can react with oxygen, hydrogen, nitrogen, and acids against oxidation.
- Mo can form alloys with other metals. For example, adding Mo to steel can increase the hardness and strength of steel and improve corrosion resistance.
|
Element |
W/% |
Element |
W/% |
|
Pb |
<0.0001 |
Al |
<0.0001 |
|
Bi |
<0.0001 |
Si |
<0.001 |
|
Sn |
<0.0001 |
Ca |
<0.001 |
|
Sb |
<0.0001 |
Mg |
<0.001 |
|
Cd |
<0.001 |
P |
0.0002 |
|
Fe |
0.0050 |
C |
0.0016 |
|
Ni |
0.0007 |
N |
0.0020 |
|
O |
0.0050 |
Mo |
99.98min |
In general, Molybdenum is an important metal widely used in aviation, military, electric power, medical equipment, and other fields, and also plays an important role in scientific and technological research.
3. Manufacture Process
Molybdenum crucible is a high-temperature resistant vessel for high-temperature laboratory and industrial applications, typically for molten metals, glass and ceramics. The following is the production process of it:
1) Selection of Molybdenum Material: Select Molybdenum material that is of the highest quality and meets specifications.
2) Material Cutting: Cut the Molybdenum material to the required size with a cutting machine or scissors.
3) Forming: Molybdenum material is formed into crucible shapes by means of heat and pressure.
4) Welding or Stamping: Weld the edges of the crucible to ensure that the container is completely sealed. Or one punch.
5) Cleaning and Polishing: It is cleaned to remove surface impurities and then polished to give it a smoother appearance.
6) Inspection: It is quality inspected using non-destructive inspection tools such as ultrasonic flaw detection, X-ray inspection, etc. to ensure it has the desired material properties and functionality.
7) Packing and delivery inspection: It is packed and then sent to delivery inspection.
The above is the production process of a molybdenum metal crucible, which can ensure the product has good quality and stability.
4. Working Principle
The working principle of the molybdenum crucible is that because molybdenum has an extremely high heat resistance and corrosion resistance, it is not easy to lose stability under high-temperature conditions, so it can withstand chemical reactions under high temperature and high-pressure environments. At the same time, the molybdenum metal crucible has good thermal conductivity and thermal expansion properties and can maintain a stable shape and size under high-temperature conditions, thereby ensuring the accuracy and repeatability of experimental results.
Generally speaking, the production process and working principle of the molybdenum metal crucible reflect its unique advantages and application value under high temperatures and atmospheres.
5. Application Field
Molybdenum crucibles are commonly used in the following applications:
1) High-temperature furnace components: It is used in high-temperature furnace components such as heating elements, vacuum furnaces, and sintering furnaces.
2) Semiconductor industry: It is used in the production of semiconductors, particularly in the CVD (chemical vapor deposition) process.
3) Metal melting and casting: It is used in the melting and casting of various metals such as gold, silver, copper, steel, and alloys.
4) Glass manufacturing: It is used in the production of fiberglass and other high-temperature glass products.
5) Medical industry: It is used in the production of medical implants and equipment due to their high melting point and bio-compatibility.
In summary, molybdenum crucibles are widely used in high-temperature applications in industries such as metallurgy, glass manufacturing, semiconductors, and medical equipment.
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