Small Straight High-purity Graphite Crucible For Melting Gold And Silver

Our company has been established for more than ten years. We have a professional technical team, production team and after-sales team. We use high-quality graphite raw materials for processing and production. Each customer's product undergoes strict production inspection to ensure that the quality of the products produced reaches the customer's standards. Required standards and have 7*24 hours after-sales service.

Graphite crucibles can be used to smelt gold, silver, and copper without touching the metal.
1. High temperature resistance: The melting point of graphite is about 3850°C and the boiling point is 4250°C. The weight loss after ultra-high temperature arc burning is very small and the thermal expansion coefficient is also very small. The strength of graphite increases as the temperature increases. At 2000°C, the strength of graphite doubles.
2. Electrical conductivity and thermal conductivity: The electrical conductivity of graphite is one hundred times higher than that of ordinary non-metallic minerals, and its thermal conductivity exceeds that of steel, iron, lead and other metal materials. The thermal conductivity decreases with increasing temperature, and even at extremely high temperatures, graphite acts as a heat insulator.
3. Chemical stability: Graphite has good chemical stability at room temperature and is resistant to acid, alkali and organic solvent corrosion.
4. Thermal shock resistance: When graphite is used at high temperatures, it can withstand drastic changes in temperature without being damaged. When the temperature suddenly changes, the volume of graphite does not change much and no cracks will occur.

Packaging personnel wear dust-free gloves throughout the packaging process, and each product is individually packaged with pearl cotton. Each product in each layer is separated by cardboard, and finally placed in wooden boxes for packaging to ensure that it is not damaged during transportation.

The product will be shipped within three days at the earliest after the customer places the order. The specific delivery time will be determined according to the customer's demand and requirements. After confirming the delivery cycle with the customer, our company will reasonably arrange the time to ensure that it is shipped within the time required by the customer.

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