Classification
Classification by shape:
Cylindrical crucible: It is the most common shape, with a large volume and stable structure, suitable for most conventional melting and refining processes.
Square crucible: The square design can better adapt to some specific equipment or process requirements. For example, in some occasions where crucibles need to be arranged compactly, square crucibles can make more efficient use of space.
Special-shaped crucible: A crucible with a special shape customized according to special process requirements, such as a crucible with an inclined angle, which is convenient for pouring the molten liquid; or a special bottom shape to meet specific heating or stirring methods.
Tantalum Crucible Product List
Product Name
Shapes
purity
capacity（ml）
size（mm）
Tantalum Crucible
Round
99%-99.99%
1-2000
According to the drawing
Tantalum Crucible
Conical
99%-99.99%
1-2000
According to the drawing
Tantalum Crucible
Square
99%-99.99%
1-2000
According to the drawing
Tantalum Crucible
rectangular
99%-99.99%
1-2000
According to the drawing
Tantalum Crucible
Cylindrical
99%-99.99%
1-2000
According to the drawing
Tantalum Crucible
Boat Shape
99%-99.99%
1-2000
According to the drawing
Classification by manufacturing process:
Forged crucible: Made by forging process, it has high density and strength and can withstand high temperatures and pressures. The internal structure of the forged crucible is denser and the impurity content is lower, which is suitable for metal smelting with high purity requirements.
Application
Metal smelting: Tantalum has high melting point, high corrosion resistance and good thermal conductivity, so tantalum crucible is widely used to smelt various high melting point metals, such as tungsten, molybdenum, rhenium, etc. In a vacuum or inert gas protection environment, tantalum crucible can effectively prevent the metal liquid from reacting with the external environment to ensure the purity of the metal. For example, in the electronics industry, tantalum crucibles are often used to smelt high-purity metals used to manufacture semiconductor devices.
Crystal growth: In the field of crystal growth, tantalum crucibles are used to hold raw materials for growing crystals. For example, in the process of sapphire crystal growth, tantalum crucibles can provide a stable high-temperature environment, so that the raw materials gradually crystallize under specific temperature and atmosphere conditions to form high-quality sapphire crystals. Because tantalum crucibles have good chemical stability and will not pollute the crystal growth process, they help to obtain high-purity crystals.
Chemical analysis: In chemical analysis laboratories, tantalum crucibles can be used for sample digestion and ashing and other pretreatment processes. It can withstand the erosion of corrosive reagents such as strong acids and strong alkalis to ensure that the sample is not contaminated or lost during the processing process. For example, in geological sample analysis, tantalum crucibles can be used to melt samples at high temperatures so that various elements in the sample can be accurately analyzed later.
Glass melting: Tantalum crucibles can also be used in glass melting processes. Since tantalum has good corrosion resistance to glass liquid and can avoid contamination of glass components by crucible materials, it can be used to melt high-quality optical glass, special glass, etc. In glass fiber production, tantalum crucibles are used to melt glass raw materials to obtain uniform glass liquid and then produce high-quality glass fibers.
Precautions
Usage restrictions: Although tantalum crucibles have good chemical stability, they may still react with some substances under certain conditions, such as slow oxidation reactions with oxygen under high temperature and high oxygen partial pressure environments. Therefore, when using them, it is necessary to understand the properties of the processed substances and avoid contact with substances that may react.
Maintenance: Tantalum crucibles should be cleaned in time after use to remove residual substances to prevent them from corroding or contaminating the crucible. When cleaning, you can choose the appropriate cleaning method according to the nature of the residue, such as soaking with a suitable solvent, ultrasonic cleaning, etc. At the same time, during storage, care should be taken to avoid collision, extrusion and scratching of the crucible to maintain its integrity.
Safe operation: When using tantalum crucibles for high-temperature operations, the operating procedures should be strictly followed and safety precautions should be taken. For example, the temperature change rate should be controlled during heating and cooling to prevent the crucible from breaking due to excessive thermal stress; when handling high-temperature crucibles, appropriate tools should be used to avoid accidents such as burns.
Zhuohangxin Metal is a trusted tantalum crucible supplier, providing a variety of tantalum products. The tantalum crucibles produced by our company are characterized by reliable quality, strong anti-oxidation and anti-corrosion ability, high temperature resistance, fast thermal conductivity and high efficiency. We are committed to providing more favorable prices and fast shipping times for all orders, and we have no minimum order requirements for these tantalum crucibles. Please contact us and we will be happy to quote you a custom size.
