Due to the chemical stability of graphite mold materials, it is not easy to be infiltrated by molten glass, and will not change the composition of glass. Graphite materials have good thermal shock resistance and small size changes with temperature, so they have become indispensable in glass manufacturing in recent years. Mold material, which can be used to make glass tubes, elbows, funnels and other molds for various shaped glass bottles.

Utilizing the characteristics of extremely small thermal deformation of artificial graphite mold materials, sintering molds and brackets for transistors can be manufactured. It has been widely used and has become an indispensable material for the development of the semiconductor industry. In addition, graphite molds are also used in casting molds for cast iron, durable casting molds for various non-ferrous metals, casting molds for cast steel, casting molds for heat-resistant metals (titanium, zirconium, molybdenum, etc.) and aluminum for welding rails. Hot-welded casting molds, etc. The graphite mold for hot-pressed sintered diamond tools is responsible for the dual role of heating element and mold support in the diamond tool manufacturing process. The quality of the graphite mold directly affects the dimensional accuracy and appearance of the diamond tool. The hot pressing sintering process requires a temperature of (1 000 ± 2) C, a forming pressure of 16-50 MPa, a holding time of 15-30 min, and a non-vacuum environment. Under this working condition, the graphite mold of the forming and heating element is required to have electrical conductivity, high resistivity, and sufficient mechanical strength, and it also needs to have good oxidation resistance and long service life to ensure that the diamond tool Dimensional accuracy and excellent performance. At present, graphite mold materials for diamond tool manufacturing in western developed countries are mainly graphite materials with ultra-fine particle structure, high purity and high degree of graphitization. The graphite mold made of this carbon raw material has small porosity, compact structure, high surface finish and strong oxidation resistance, and the average service life can reach 30-40 times. Diamond molds require high material hardness, good oxidation resistance, and high processing precision. The use of high-quality graphite raw materials greatly prolongs the service life of the mold and improves the oxidation resistance.

In recent years, the mold industry has developed rapidly. Graphite materials, new processes and increasing mold factories have continuously impacted the mold market. Graphite has gradually become a good material for mold making due to its good physical and chemical properties.

Graphite molds are widely used mainly in the following aspects:

1. Molds for non-ferrous metal continuous casting and semi-continuous casting

2. Dies for pressure casting

3. Mold for centrifugal casting

4. Hot pressing die

5. Sintering mold and other diamond sintering molds

Nowadays, the mold industry plays a vital role in human life and development. With its superior performance in all aspects, graphite mold has established an important leading position and future development trend in the mold industry.

1. Graphite products have good adsorption.

The pore structure of charcoal makes charcoal have good adsorption properties, so charcoal is often used as an adsorbent material for absorbing moisture, odor, toxic substances, etc. For example, the graphite baking tray used for barbecue a few days ago looks very clean, but when it is heated on the induction cooker, the grease and harmful substances adsorbed during the previous barbecue will slowly seep out, but don’t worry, use a clean meal The paper is wipe clean and ready to use.

2. Graphite products have good thermal conductivity, fast heat transfer, uniform heating, and fuel saving.

Baking pans and pots made of graphite heat up quickly, and the cooked food is evenly heated, cooked from the inside to the outside, and the heating time is short. Not only the taste is pure, but also the original nutrients of the food can be locked. When grilling meat with a graphite baking tray, the induction cooker can be preheated in only 20-30 seconds when the induction cooker is turned on to a high fire at the beginning.

3. Graphite products have chemical stability and corrosion resistance.

Graphite has good chemical stability at room temperature and is not corroded by any strong acid, strong alkali and organic solvent. Therefore, even if graphite products are used for a long time, there is little wear and tear, as long as they are wiped clean, they are still as new.

4. Graphite products have strong anti-oxidation and reduction effects.

Graphite products, especially graphite mattresses, can generate negative oxygen ions after being heated to activate the surrounding objects, maintain human health, effectively prevent aging, and make the skin full of luster and elasticity.

5. Graphite products are environmentally friendly and healthy, without radioactive pollution and high temperature resistance.

Carbon has to go through at least a dozen days and nights of graphitization in a high temperature environment of 2000-3300 degrees to become graphite. Therefore, the toxic and harmful substances in graphite have already been released, and it is stable at least within 2000 degrees.