2022-11-23
2023-11-22Graphite powder is a substance that is very sensitive to chemical reactions. In different environments, its resistivity will change, which means its resistance value will change. However, there is one thing that does not change. Graphite powder is one of the good non-metallic conductive substances. As long as the graphite powder is kept uninterrupted in an insulated object, it will also be electrified like a thin wire. However, there is no accurate number for the resistance value, Because the thickness of graphite powder varies, the resistance value of graphite powder will also vary when used in different materials and environments. Due to its special structure, graphite has the following special properties:1) High temperature resistant type: The melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even after being ignited by an ultra-high temperature arc, the weight loss and thermal expansion coefficient are very small. The strength of graphite increases with te
2023-11-22High purity submicron graphite particles have a wide range of applications: electronic information display tubes, black conductive coatings in the display manufacturing industry, devices composed of liquid crystal displays, photosensitive black coatings used on sensors and color decomposers, color liquid crystal plasma three primary color boundaries used in flat panel displays to improve emission efficiency and color contrast, and various coatings such as ultrafine tungsten and molybdenum wire drawing, High purity submicron graphite particles are widely used in advanced lubricating oil and grease manufacturing, high-performance battery foam iron nickel manufacturing, photographic film and many other industries.High purity graphite ultrafine powder includes colloidal graphite powder, which is mainly used for pens, powder metallurgy, lubricating oil, grease, dry batteries, conductive coatings, lubricating coatings, scientific research by the National Defense Science and Technology Commi
2023-11-21High purity submicron graphite particles have a wide range of applications: electronic information display tubes, black conductive coatings in the display manufacturing industry, devices composed of liquid crystal displays, photosensitive black coatings used on sensors and color decomposers, color liquid crystal plasma three primary color boundaries used in flat panel displays to improve emission efficiency and color contrast, and various coatings such as ultrafine tungsten and molybdenum wire drawing, High purity submicron graphite particles are widely used in advanced lubricating oil and grease manufacturing, high-performance battery foam iron nickel manufacturing, photographic film and many other industries.High purity graphite ultrafine powder includes colloidal graphite powder, which is mainly used for pens, powder metallurgy, lubricating oil, grease, dry batteries, conductive coatings, lubricating coatings, scientific research by the National Defense Science and Technology Commi
2023-11-21Graphite powder is a substance that is very sensitive to chemical reactions. In different environments, its resistivity will change, which means its resistance value will change. However, there is one thing that does not change. Graphite powder is one of the good non-metallic conductive substances. As long as the graphite powder is kept uninterrupted in an insulated object, it will also be electrified like a thin wire. However, there is no accurate number for the resistance value, Because the thickness of graphite powder varies, the resistance value of graphite powder will also vary when used in different materials and environments. Due to its special structure, graphite has the following special properties:1) High temperature resistant type: The melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even after being ignited by an ultra-high temperature arc, the weight loss and thermal expansion coefficient are very small. The strength of graphite increases with te
2023-11-20Crucibles can be divided into three categories: graphite crucibles, clay crucibles, and metal material crucibles. In graphite crucibles, there are three types: regular graphite crucibles, irregular graphite crucibles, and high-purity graphite crucibles. Various types of graphite crucibles differ in performance, main uses, and application standards, resulting in differences in commonly used raw materials, production methods, production processes, and product specifications and models.The main raw material of graphite crucible is pure natural graphite in crystalline form. Therefore, it maintains the various physical and chemical characteristics of pure natural ink.Namely, it has excellent thermal conductivity and heat resistance, and has a small coefficient of linear expansion throughout the high-temperature application process. It has certain strain resistance performance for rapid heating and quenching. Strong corrosion resistance to acid and alkaline solutions, with high-quality orga
2023-11-20Graphite crucibles have excellent thermal conductivity and heat resistance during the pre application inspection work. During the entire high-temperature application process, the linear expansion coefficient is small, and they have certain strain resistance performance for rapid heating and quenching. Strong corrosion resistance to acid and alkaline solutions, with high-quality organic chemical reliability. It is widely used in metallurgical industry, forging, mechanical equipment, chemical plants and other industries for smelting alloy tool steel, rare metals, and aluminum alloys, and has good practical safety engineering effects.Generally speaking, in the inspection work of graphite crucibles before application, the following key aspects should be ensured:1. The first step is to check the graphite crucible for cracks before work. If there are no cracks, the graphite crucible needs to be heated to 600 ° C and dried sufficiently.2. There should be no water stored around the furnace or
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