High temperature resistant graphite powder

In the production of the casting industry, in order to make the casting not deform or break at high temperatures. Casting graphite powder that can withstand higher forging temperatures is generally added. Graphite powder has a high melting point and can withstand temperatures above 3000 °C, so graphite powder has good high temperature resistance. The high temperature resistance of graphite powder can be used in the production of continuous casting graphite powder, graphite powder mold cleaner, graphite powder crucible, graphite powder refractory bricks, lubricating oils and greases.

Applications in the foundry industry

In the foundry industry, graphite powder is coated on a solid surface to form a smooth film with firm adhesion. This is the good coating performance of graphite powder and is a good casting release agent. The graphite powder commonly used in casting is amorphous graphite powder or amorphous graphite powder. There are still many small township factories that produce small thin-walled parts by hand. Instead of adding pulverized coal to the molding sand, they brushed the surface of the green sand type with a soft brush with clay-like graphite powder, and the surface of the cast product was quite smooth.

Although the graphite powder does not form bright carbon when pouring molten iron, the wetting angle of graphite powder to molten iron is much greater than 90°, that is, the sand mold is not wetted by molten iron. Moreover, the pores on the surface are blocked by it, and the molten iron is not easy to penetrate into the sand particles, which can prevent the casting from sticking to the sand and improve the smoothness of the casting surface. It has a good lubricating effect, which can improve the compactness and fluidity of molding sand, reduce air permeability, reduce the release resistance of the sample, and improve the molding performance of the molding sand.

Types of graphite powder

(1) Ultrafine graphite powder: The specification is generally between 1800 mesh and 8000 mesh, mainly used for powder metallurgy release agent, making graphite crucibles, battery anodes, conductive material additives, etc.

(2) Nano graphite powder: The process is complex and the output is low, so the price is relatively high. Mainly used in anti-corrosion coatings, lubricating oil additives, grease additives, precision graphite seals and other industries. In addition, nano graphite powder has high application value in scientific research institutions.

(3) Colloidal graphite powder: It is formed by uniformly dispersing graphite particles in organic solvents. Colloidal graphite is a black filamentous viscous suspension. Colloidal graphite powder has high-quality natural flake graphite, special oxidation resistance, self-lubrication and plasticity at high temperatures, good electrical and thermal conductivity, and adhesion. Mainly used in sealing, metallurgical demolding and other industries.

(4) Sheet graphite powder: It is a widely used raw material. Graphite powder specifications range from 32 mesh to 12,000 mesh. Flake graphite powder has good toughness, good thermal conductivity and corrosion resistance, and can be used as refractory materials, wear-resistant and lubricating materials, conductive materials, casting and turnover materials.

(5) High-purity graphite powder: its purity is high, the conductivity is 100 times that of ordinary metals, and the lubrication effect is good. High-purity graphite powder is mainly used to make conductive coatings and high-strength graphite electrodes.

Other applications for graphite powder

(1) Special graphite coatings: water-based graphite coatings, conductive graphite coatings, dissolved graphite coatings, internal and external graphite coatings, brushed graphite coatings, lubricating graphite coatings, glass fiber coatings, TV graphite coatings and special coatings, nano-scale coating material production process, design scheme. Handle all kinds of anti-corrosion equipment and undertake the treatment of all kinds of anti-corrosion equipment. Special machinery design and manufacture of all kinds of fine chemical equipment, all kinds of mills and formulation technology.

(2) Floor heating: The conductive function of graphite powder is used, and the heat energy is transmitted symmetrically along the vertical position through graphite powder for floor heating, so that people quickly feel warm. Graphite powder for floor heating is specially used for building floor heating, and the conductive function and low temperature resistance are very good. It can make the floor heating into the room faster, and it is very good used in the field of floor heating equipment.

(3) Graphite crucible: Graphite powder is added to the crucible refractory brick to make it have high temperature resistance. Ordinary lubricating oil and grease have a disadvantage, that is, they cannot withstand high temperature and cannot play a lubricating role at high temperatures. In the production process of lubricating oil and grease, the addition of graphite powder can not only increase the lubricating performance of lubricating oil and grease, but also improve the high temperature resistance of lubricating oil and grease.

In recent years, graphite powder has become one of the materials close to life today, and it has also developed in the research fields of industry, chemical industry, science and technology, etc., which can be stably manufactured at high temperatures and reduce additional losses caused by high temperatures. Different properties of graphite powder have different uses in high-temperature work in the industrial field. If necessary, you can contact the Franli factory, depending on the use, the specifications, quality, and price of graphite powder also vary.