polycrystalline mullite fiberIt is a kind of polycrystalline alumina fiber, the content of Al2O3 in the fiber is between 72% and 75%, and the content of Al2O3 generally exceeds 80%, which is called polycrystalline alumina fiber.

The main crystal phase of polycrystalline mullite fiber is a single mullite phase, which is used at high temperature in polycrystalline alumina fiber, has good thermal stability, and uses products whose temperature exceeds 1400.

It is a new type of ultra-light high-temperature refractory fiber at home and abroad. It is one of the all-Al2O3-SiO2 ceramic fibers. The use temperature is 1500-1700, which is higher than 200-400 glass fiber. Polycrystalline mullite fiber production technology Zhejiang a company in March 1983 completed the Zhejiang Provincial Science and Technology Commission issued a major scientific research project of "crystalline fiber research", is the first domestic institutions to obtain the technical evaluation. After years of hard work, it has excellent production experience and reliable quality assurance, provided application technical consultation, and installed a series of after-sales service measures.

The introduction of polycrystalline mullite fiber market, for the vast majority of design researchers to design new equipment, the development of new products and new technologies to provide material basis; even to the industrial and mining enterprises with thermal equipment to provide transformation, increase production, save energy, improve the environment, progress is very ideal means.

what are the classification of polycrystalline mullite fiber?

Widely used in metallurgy, machinery, ceramics, electronics, petrochemical, aerospace and other thermal industrial kiln and other thermal equipment lining insulation. It can achieve the purposes of saving energy and increasing production, reducing the temperature difference in the furnace, improving product quality, reducing spare parts consumption, extending the life of the furnace, and improving the working environment. According to the different service scope, it can be divided:

　　polycrystalline mullite fiberCotton

Polycrystalline mullite fiber veneer block

polycrystalline mullite fiberboard

Polycrystalline mullite fiber molding products

Polycrystalline mullite fiber felt

Polycrystalline mullite fiber blanket

　　polycrystalline mullite fiberModule

Polycrystalline mullite fiber paper

Polycrystalline mullite fiber electrical module

　　polycrystalline mullite fiberThe alienation data:

Chemical composition: AL2O 3 72% ~ 80% SIO 2 18% ~ 27%

Physical properties, appearance: pure white

Diameter: 3~5 Length: 20~80mm

Decision Award: 3Al2O3 2SiO -Al2O3

Product performance of polycrystalline mullite fiber:

Bulk surface: cumulative bulk density 30-60 kg/m

Using temperature oxidizing atmosphere 1600 reducing atmosphere 1350

Blanket shape: basic size 200 100 (30-60) mm

Weight 100 kg/m

Replastic shrinkage 1%(1500 C6hr)

The temperature is the 1600 flame service 1400.

Thermal conductivity 600C 0.13 w/m k

1000c 0.25w W/m K

1400c 0.45w Watt/m K

(except for machine weapon adhesives)

Plate: basic size 400 600 (20-40) mm weight 220-300 kg/m

Replastic shrinkage 1%(1400 C6hr)

Use temperature 1600

Thermal conductivity: 600C 0.10 w/m k

1000c 0.21w/m K

1400c 0.43w Watt/m K