Polycrystalline Mullite Fiber Special-Shaped Parts

Product Introduction

Polycrystalline Mullite Fiber Special-Shaped Parts are advanced thermal insulation products designed for demanding high-temperature applications. Manufactured from high-purity mullite fibers through vacuum forming and precision machining, these parts combine excellent thermal stability with low thermal conductivity and outstanding mechanical strength.

With a long-term service temperature of 1350–1500°C and a short-term resistance up to 1600°C, they maintain structural integrity without melting, deformation, or shrinkage. The lightweight structure ensures significant energy savings compared with traditional refractory materials, while providing reliable thermal insulation and protection.

Available in customized shapes and sizes, these fiber components are widely used in aerospace thermal protection, industrial furnace linings, petrochemical equipment, energy storage systems, and other high-tech fields.

Product Features

Excellent High-Temperature Resistance: Made from carefully selected high-purity raw materials and boasting a stable crystal structure, it is suitable for long-term, high-temperature environments ranging from 1350–1500°C. For short-term, intermittent use, it can withstand temperatures exceeding 1600°C, far exceeding that of ordinary ceramic fiber products.

Extremely Low Thermal Conductivity: The interwoven polycrystalline fibers create numerous micropores that effectively block heat transfer, resulting in excellent insulation efficiency and significantly reducing equipment wall temperatures, thereby saving energy and reducing consumption.

Precise Custom Design: Customizable to meet the complex structures of customer equipment (such as furnace doors, inspection ports, burners, radiant tubes, thermowells, etc.), enabling seamless installation and minimizing seams, improving overall insulation and sealing.

Excellent Thermal Shock Stability: The fiber structure imparts exceptional thermal shock resistance, enabling the product to withstand rapid cooling and heating cycles without cracking or peeling, ensuring a long service life.

Lightweight and high strength: The bulk density is much lower than that of traditional refractory materials, which reduces the load on the kiln body. At the same time, it has good mechanical strength and toughness, making it easy to transport and install.

Product Application

Aerospace: Thermal insulation for high-temperature test equipment and engine hot-end components.

Metallurgical Industry: Door seals, burner blocks, and guide rails for high-temperature sintering furnaces, brazing furnaces, vacuum furnaces, and induction heating furnaces.

Chemical Industry: High-temperature thermal insulation for key components such as ethylene cracking furnaces and gasifiers.

Ceramics and Glass Industry: Thermal insulation linings for complex shapes such as roller hearth kilns and glass melting furnaces.

New Energy: Specialized thermal insulation components for lithium battery material sintering furnaces and photovoltaic polysilicon ingot casting furnaces.

Product Parameter

Item		Index
Classification Temperature(℃)		1600	1700
Use limit(℃)		1450	1600
Al203(%)		62	70
Al203+SiO2(%)		98	98.5
Density(Kg/m3)		250-600	250-600
Thermal conductivity (W/m.k)	400C	0.08	0.08
	600C	0.1	0.09
	800C	0.13	0.12
	1000C	0.15	0.15
	1200C	0.19	0.19
Linear shrinkage(%)		≤2(1450Cx24h)	≤1.5(1600Cx24h)
Modules of rupture(Mpa)		≥0.3	≥0.3
Compressive strength(Mpa)		≥0.25	≥0.25
Ignition loss(%)		8	8

 

Polycrystalline Mullite Fiber Special-Shaped Parts: Redefining Thermal Protection

Polycrystalline mullite fiber special-shaped parts are setting new standards in high-temperature insulation and thermal protection. Manufactured from high-purity mullite fibers through vacuum forming and advanced processing, these components combine lightweight design, excellent thermal stability, and outstanding mechanical strength.

With a continuous service temperature of 1350–1500°C and short-term resistance up to 1600°C, they maintain integrity under extreme conditions without melting, warping, or shrinking. Compared with traditional refractory bricks, they deliver significant energy savings and weight reduction, making them a preferred solution for industries seeking efficiency and performance.

These customized parts are widely applied in aerospace, industrial furnaces, petrochemical equipment, and energy storage systems, where reliability and precision are critical. As industries move toward higher efficiency and sustainability, polycrystalline mullite fiber shapes are becoming the go-to material for next-generation thermal insulation solutions.

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FAQ

Q1: Can I get samples? / Are you willing to provide free samples to us?

A1: Of course, SUNTHERM provides free samples, and the shipping cost can be negotiated by both parties. / Of course, we will send free samples for your reference.

Q2: Can I use our own logo or design to make stickers? / Can I request customized shipping marks?

A2: Yes, SUNTHERM has a professional designer team and can design according to your requirements. / Yes, we accept customized shipping marks.

Q3: Are your prices flexible?

A3: Certainly, our pricing is based on order quantity. We're happy to discuss volume discounts for larger purchases.

 

 

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