Product details
High-purity graphite crucibles are mainly used to smelt non-ferrous metals and their alloys such as copper, brass, gold, silver, zinc and lead. High-purity graphite crucibles are processed and formed using high-purity high-quality raw materials. The maximum heating temperature reaches about 2200°C. The volume density reaches 1.85 to 1.9. It is a high-purity, high-density and high-strength graphite material. It has a very small thermal expansion coefficient, a certain degree of strain resistance, strong corrosion resistance to acid and alkali solutions, and very high chemical stability. of.Our company is the source factory and supports the customization of various sizes of graphite crucibles and graphite products.
Product features and advantages
High purity: Use high-purity graphite material to reduce impurity pollution during the smelting process and ensure that the smelted precious metals such as gold and silver have extremely high purity.
High temperature resistance: Graphite has an extremely high melting point and can withstand the welding requirements in high temperature environments, ensuring the smooth progress of the smelting process.
Chemical stability: It has good corrosion resistance to a variety of chemical substances, can maintain structural stability during the smelting process, and does not participate in any chemical reactions.
Strong thermal conductivity: The thermal conductivity of graphite is among the best among various materials, and it can quickly transfer heat to the smelting material, shorten the smelting time, and reduce energy consumption.
Smooth inner wall: The inner wall of the crucible is smooth, and the melted metal liquid is not easy to leak and adhere to the inner wall of the crucible, making the metal liquid have good fluidity and pourability.
Thermal shock resistance: It has strong strain resistance to rapid thermal shock and can withstand thermal shock without being easy to break.
Application areas
Gold, silver and graphite crucibles are widely used in the following fields
Precious metal smelting
Used to smelt gold, silver and other precious metals and their alloys to ensure the purity and quality of the product
jewelry casting
In the jewelry casting industry, it is used in the melting gold and silver casting process to ensure the exquisiteness and quality of jewelry.
Scientific research and experiments
In the field of scientific research, it is used as an experimental tool for smelting and analyzing samples such as precious metals.
Precautions for use
When using high-purity gold and silver crucibles, operating procedures should be strictly followed to ensure safe use.
Avoid direct contact with corrosive substances such as strong acids and alkalis to avoid damaging the crucible.
It should be cleaned promptly after use and properly stored to extend its service life.
To sum up, the high-purity graphite crucible for melting gold and silver is a special crucible designed for smelting precious metals such as gold and silver. It has excellent properties such as high purity, high temperature resistance, and strong chemical stability. It is used in precious metal smelting and jewelry casting. and scientific research experiments and other fields play an important role.
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Hongshun Graphite Co., Ltd, is an enterprise that has been focusing ongraphite production and processing for more than ten years. It is located inHenan Province, China, It is an advanced enterprise integrating a productionteam, a technical team,a sales team and an after-sales team. The companycovers an area of about 5,000 square meters. The company There are more than10 R&D personnel, more than 40 production personnel, and dozens of sales andafter-sales teams, All employees of the company have received correspondingtraining,and the employees have more professional industry knowledge andprofessionalism.
It is a technical enterprise specializing in graphite production. It can produce and customize various graphite products for customers according to customer requirements, using different graphite materials and different sizes. The company supports customers from all over the world to customize drawings and process incoming samples. , and deliver the goods within the time limit required by the customer.
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FAQ
What is the high temperature resistance of graphite products?
Graphite has excellent high temperature resistance. Ordinary graphite products can work stably at high temperatures of around 2000°C, while some special high-purity graphite products can even withstand higher temperatures.
What is the chemical stability of graphite?
Graphite has good stability to most chemicals. At normal temperature, it does not react with acids, alkalis, salts, etc. However, at high temperatures, oxidation reactions may occur when in contact with strong oxidants.
Does graphite have good thermal conductivity?
Graphite has very good thermal conductivity and is a good thermal conductive material. It has a higher thermal conductivity than many metals, allowing it to transfer heat quickly and evenly.
How to judge the quality of graphite products?
The quality of graphite products can be judged from the following aspects: first, look at the appearance, the surface should be smooth, without cracks, and without impurities; secondly, check the density, graphite products with high density usually have better quality; you can also test their electrical conductivity, thermal conductivity, etc. indicators to assess quality.
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