High Temperature Resistance Isostatic Cylinder Shape Graphite Heaters for Vacuum Furnace

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The cylindrical graphite heater is a component with excellent high-temperature stability, electrical and thermal conductivity, and chemical inertness. It is used in various fields and plays an important role. Cylindrical graphite heaters can usually be used as core heating elements in vacuum furnaces, fully meeting the process requirements of silicon carbide crystal growth, high-temperature alloy annealing, etc. The porous structure design adopted by the graphite heater, combined with the gradient resistor, enables the temperature difference in the furnace to be well controlled, and this feature is particularly important for the growth of semiconductor single crystal silicon. In addition, the graphite heater is made of high-purity graphite material, which does not produce volatiles in the high-temperature box. This performance ensures the preparation purity of sensitive materials such as optical-grade sapphire. The key performance advantages of graphite heaters are as follows: 1. Thermal shock resistance: can withstand 300℃/s rapid cooling and heating cycles (the limit of metal heaters is ≤50℃/s) 2. High temperature strength: the bending strength remains at 15MPa at 1600℃ (molybdenum alloy only has 3MPa at the same temperature) 3. Oxidation resistance: after SiC coating treatment, the service life is extended to 5000 hours at 10⁻² Pa oxygen partial pressure

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Huixian City Mishan Graphite Mold Co., Ltd. (Mishan Graphite) was established in 2004 and is one of the manufacturers specializing in the production of graphite products in China. The company is committed to providing customers with high-quality graphite raw materials and precision graphite product processing. Our company uses isostatic graphite, molded graphite, EDM graphite and other raw materials, which have the characteristics of high strength, good thermal shock resistance, high temperature resistance, corrosion resistance, and strong oxidation resistance. Our main products including graphite molds, graphite crucibles , graphite plates, graphite rods, graphite tubes, graphite boxes, graphite electrodes, diamond sintering molds, heat treatment vacuum furnace graphite accessories, photovoltaic semiconductor industry graphite parts, graphite heaters for single crystal silicon, various special-shaped graphite accessories, etc. Our products are widely used in aerospace, solar photovoltaics, semiconductors, high temperature treatment in industrial furnaces, nuclear industry, automobile, chemical industry, electronics industry, mechanical seals, carbon brushes, machining, non-ferrous metal smelting, EDM and other industries. Our company has experienced and skilled technical team who can support customization and provide customers with technical support and solutions. In addition to mechanical processing, Mishan Graphite also provides deep processing services for graphite materials such as graphitization and purification, anti-oxidation treatment, resin impregnation, metal impregnation, and Teflon spraying. Our company has won unanimous praise from customers at domestic and overseas with its high-quality production process, good production environment, advanced equipment, and high-quality products! Our products had exported to South Korea, Japan, Turkey, Russia, Pakistan and many other countries and regions! Mishan Graphite firmly believes that quality is the basis of survival. We never slack off in quality control and have a dedicated quality inspection department. Whether it is appearance, tolerance, or process, we are strictly control every step to ensure product quality. The establishment of the Anyang production base has promoted our expansion into multiple application fields and made the company bigger, stronger and better.

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