750 graphite electrode

Pubdate: 06-22 2021

Advantages of 750 graphite electrode

1. Fast speed;

Graphite discharges 2-3 times faster than copper, and the material is not easy to deform. It has obvious advantages in the processing of thin rib electrodes. The softening point of copper is about 1000 degrees, which is easily deformed by heating. The sublimation temperature of graphite is about 3650 degrees. In comparison, the thermal expansion coefficient of graphite materials is only 1/30 of that of copper materials;

2. Light weight;

The density of graphite is only 1/5 of that of copper. When large electrodes are used for electrical discharge machining, it can effectively reduce the burden on machine tools (EDM), and is more suitable for large mold applications;

Third, the loss is small;

Since the spark oil contains C atoms, the high temperature causes the C atoms in the spark oil to be decomposed during electrical discharge machining, and a protective film is formed on the surface of the 750 graphite electrode, which compensates for the loss of the graphite electrode;

4. No burrs;

After the copper electrode is processed, the burr needs to be manually removed, and there is no burr after the graphite is processed, which not only saves a lot of cost and manpower, but also makes it easier to realize automated production;

5. Easy to polish;

Since the cutting resistance of graphite is only 1/5 of that of copper, it is easier to manually grind and polish in operation;

6. Low cost;

Due to the continuous increase in the price of copper materials in recent years, the price of homogeneous graphite is lower than that of copper in all aspects; the universality of Toyo Carbon under the same volume, the price of graphite products is 30 to 60% lower than that of copper. Prices are relatively stable, and short-term price fluctuations are relatively small.

3 related reports editor

Tencent.com: [1] In recent years, with the widespread use of molds, the annual consumption value of molds in the machinery industry is 5 times the total value of various machine tools. The huge heat loss and my country’s existing energy-saving policies are also extremely Contradict. The large consumption of molds not only directly increases the cost of the enterprise, but also causes frequent shutdowns of a large number of production lines due to frequent mold replacement, which ultimately causes huge economic losses.

On June 3, the fourteenth China International Mould Technology and Equipment Exhibition 2012 with the theme of “Promoting Industry Transformation and Development” came to an end. According to Cao Chunhua, President of the China Die & Mould Industry Association, although my country’s mould industry has developed considerably, in terms of the overall national economic development speed of our country, the pace of development of the mould industry is still quite slow. According to the survey, due to the sharp increase in the prices of mold raw materials and energy, the profit of mold industry products fell last year; in order to survive and develop, many companies have adopted material switching as a major measure of transformation and development.

It is understood that Kunshan Yihui Mould Material Co., Ltd. () took the lead in launching graphite EDM material, which plays an extremely important role in mould making. Compared with traditional copper molds, graphite materials have the advantages of high processing accuracy and good surface effects, especially in the processing of mold cavities of precise, complex, thin-walled, and high-hard materials. Compared with copper, graphite material has the advantages of low consumption, fast discharge speed, light weight and low thermal expansion coefficient, so it gradually replaces copper electrodes and becomes the mainstream of electrical discharge machining materials. In contrast, Kunshan Yihui Mould Co., Ltd. 750 graphite electrode material has the following six advantages:

1. Fast speed;

Graphite discharges 2-3 times faster than copper, and the material is not easy to deform. It has obvious advantages in the processing of thin rib electrodes. The softening point of copper is about 1000 degrees, which is easily deformed by heating. The sublimation temperature of graphite is about 3650 degrees. In comparison, the thermal expansion coefficient of graphite materials is only 1/30 of that of copper materials;

2. Light weight;

The density of graphite is only 1/5 of that of copper. When large electrodes are used for electrical discharge machining, it can effectively reduce the burden on machine tools (EDM), and is more suitable for large mold applications;

Third, the loss is small;

Since the spark oil contains C atoms, the high temperature causes the C atoms in the spark oil to be decomposed during electrical discharge machining, and a protective film is formed on the surface of the 750 graphite electrode, which compensates for the loss of the 750 graphite electrode;

4. No burrs;

After the copper electrode is processed, the burr needs to be manually removed, and there is no burr after the graphite is processed, which not only saves a lot of cost and manpower, but also makes it easier to realize automated production;

5. Easy to polish;

Since the cutting resistance of graphite is only 1/5 of that of copper, it is easier to manually grind and polish in operation;

6. Low cost;

Due to the continuous increase in the price of copper materials in recent years, the price of homogeneous graphite is lower than that of copper in all aspects; the universality of Toyo Carbon under the same volume, the price of graphite products is 30 to 60% lower than that of copper. Prices are relatively stable, and short-term price fluctuations are relatively small.


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