0.15-0.25 Rigid Graphite Felt Shaped Pieces FOR Sintering Furnace

Features:

Material: Polyacrylonitrile

Category: Graphite Hard Felt

Product Type: Customize various specifications and sizes (customized by drawing)

Thermal conductivity: 0.15-0.25

Grade: A customized processing

Refractory temperature: above 2000 ℃

Core material: polyacrylonitrile

Form: Microporous

Graphite Felt Application:

1. Aerospace industry: hot isostatic pressing furnace, heat treatment, sintering, brazing, hot pressing furnace

2. Semiconductor industry: drawing silicon single crystal furnace, vacuum metallurgy

3. Metal heat treatment: heat treatment furnace, sintering furnace, brazing furnace

4. Carbon fiber production: induction heating or resistance heating carbonization furnace, graphitization furnace

5. The production of composite materials: pyrolytic carbon and pyrolytic graphite, chemical vapor deposition, or other composite materials

6. Energy materials: vanadium or other redox battery materials

Physical and chemical indicators:

Temperature resistance: 1800 ℃ in vacuum, 2850 ℃ in inert gas

Graphite Hard Felt has excellent ablation resistance, thermal shock resistance, airflow erosion resistance, and thermal insulation performance. It has the advantages of high rigidity, self-supporting, high strength, no short fiber drop, low thermal conductivity, and other advantages that traditional thermal insulation materials do not have.

Graphite hard felt (commonly known as carbon fiber composite hard felt, cured felt, carbon fiber-reinforced, etc.) is made by a special process that integrates graphite paper, polyacrylonitrile-based carbon felt, and polyacrylonitrile-based carbon cloth into one body, curing After molding, then primary and secondary high-temperature treatment.

Asphalt represented by Japan Kureha is the mainstream in the insulation industry. Insulation felts in Europe and the United States are basically based on viscose, while most of China uses polypropylene as the raw material. The process is to cut the polyacrylonitrile-based carbon felt or viscose-based carbon felt into the required size, roll it into a tube and put it into a container made of a graphite material, and place the graphite container in a high-temperature furnace (the high-temperature furnace is a graphite tube furnace, intermediate frequency, High-frequency induction furnace or other high-temperature furnaces with the heating method), with the protection of vacuum or high-purity inert gas, heating to 2200 ～ 2500 ℃ at a heating rate of 100 ～ 300 ℃ / h, then naturally cool to 100 ℃.

Hunan MTR New Material Technology Co., Ltd. (formerly Zhuzhou Green Carbon Fiber Products Co., Ltd.) is a high-temperature furnace thermal insulation material production plant! Our company adheres to the corporate philosophy of singularity, focus and professionalism, and is committed to the continuous development and application of thermal insulation material technology.

The company’s main products include graphite hard felt, reinforced composite hard felt, multi-type composite hard felt (made in an overall shape), graphite felt, high-temperature carbon felt, and other thermal field insulation materials. The rigid felt series have a rigidity that traditional insulation materials do not have. Supporting, high strength, no short fiber shedding, low thermal conductivity and other advantages, more energy-saving, environmentally friendly, easy to disassemble, easy to maintain, and can extend the service life of the high-temperature furnace. The product is suitable for all kinds of high-temperature vacuum furnace equipment (such as: single crystal growth furnace, polycrystalline casting furnace, polycrystalline reduction furnace, polycrystalline ingot furnace, vacuum sintering furnace, hot pressing furnace, heat balance furnace, electromagnetic induction furnace, medium and high-frequency Induction furnaces, non-oxidizing atmosphere high-temperature equipment, high-purity silicon hydrogenation furnaces, etc.) are widely used in solar energy, vacuum metallurgy, new chemical materials, atomic energy, semiconductors, new electronic energy and other fields.

Customized drawings can be made to produce various non-standard and special-shaped geometric shapes such as flat plates, discs, cones (discs), and cylinders! Can provide the overall installation service of the hot cell.