Is thermal insulation cotton asbestos, and what is the difference between rock wool and thermal insu

Insulation cotton. It is a combination of high-purity clay clinker, alumina powder, and silica.

Raw materials such as powder and chromium sand are melted at high temperature in an industrial electric furnace to form a fluid. Then use compressed air to spray or use a silk spinning machine to spin the silk into a fibrous shape, and collect cotton through a cotton collector to form thermal insulation cotton. Thermal insulation cotton can be further processed into fiber blankets, boards, paper, cloth, ropes and other products.

Ceramic fiber is a high-efficiency thermal insulation material with light weight, high strength, oxidation resistance, and thermal conductivity.

Low, good flexibility, corrosion resistance, small heat capacity and sound insulation.

Thermal insulation cotton can be widely used in passenger trains, stadiums and theaters as a separate insulation and cold-proof material. It is glass wool.

An ideal substitute for cold-proof materials, in direct contact with the human body, will not produce any harmful effects, and is a non-toxic, harmless and non-polluting new type of insulation material. [

Asbestos has been used for weaving cloth very early, and the Zhou Dynasty in China has been able to make fabrics with asbestos fibers, which are as white as new after being burned by fire, so they are called fire cloth or fire alkane cloth. At present, there are nearly 3,000 kinds of asbestos products or products containing asbestos, which are mainly used in mechanical transmission, braking, thermal insulation, heat preservation, fire prevention, heat insulation, anti-corrosion, sound insulation, insulation, etc., among which the more important are the manufacturing sectors such as automobiles, chemicals, electrical equipment, and construction industries. Because asbestos fibers can cause asbestosis and pleural mesothelioma.

Many countries have chosen to ban the use of this dangerous substance altogether, and some other countries are looking at the dangers of asbestos. Therefore, asbestos nets are still used in chemistry laboratories in middle and high schools in China.

This is a worrying phenomenon.

Thermal insulation cotton is made of clinker mixed with limestone and cohesive soil in a certain proportion, plus raw materials such as alumina, silica, chrome sand, etc., after high-temperature fusion, and then spun into a fiber by a silk spinning machine, and finally made by cotton collector.

It has good stretchability and softness, and can be processed into carpets, boards, fabrics, etc., and is widely used.

Thermal insulation cotton can be further processed into fiber blankets, boards, paper, cloth, ropes and other products. Ceramic fiber is a kind of high-efficiency thermal insulation material, which has the characteristics of light weight, oxidation resistance, low thermal conductivity, good flexibility, corrosion resistance, small heat capacity and sound insulation.

Thermal insulation cotton can also be widely used as a thermal insulation and cold-proof material in passenger trains, stadiums, and theaters. It is an ideal substitute for glass wool cold-proof materials, in direct contact with the human body, will not produce any harmful effects, and is a non-toxic, harmless, non-polluting new type of insulation material.

First: the production of raw materials and processes are different.

Centrifugal glass wool is made of glass as the main raw material, and then mixed with other auxiliary materials in a certain proportion, and then sent to the glass furnace to fully melt, and the melted solution flows out through the leakage plate and enters the centrifuge. Driven by the high-speed running centrifuge, the high-speed operation of the centrifuge throws the glass into a glass stream, under the action of high-temperature and high-speed flame, the glass stream is further stretched into fibers, and then the atomization binder is applied, under the action of the negative pressure wind of the cotton collection mesh belt, the fiber attached to the resin binder is settled on the moving mesh belt, forming a uniform cotton felt, and then through the constant temperature curing oven, the curing process is completed, the product is finalized, and the product is cut after being cut into a predetermined product, and then packaged.

Rock wool products are a new type of lightweight thermal insulation material made of fine basalt as the main raw material, melted at high temperature, made of inorganic fibers by high-speed centrifugal equipment, and then added with special binders and dust-proof oil, paved with a swing belt and changed by special equipment. According to different uses, it can be processed into rock wool boards, rock wool seam felts, rock wool tube shells and other products.

Second: the product performance is different.

Glass wool has a lower bulk density, less slag ball content, low thermal conductivity, long service life and large fiber toughness than rock wool, but the maximum use temperature of rock wool is about 600 degrees Celsius, and glass wool is only about 260 degrees Celsius.

Three: the use of the product is different.

Glass wool is generally used for insulation parts below 200 degrees Celsius, mostly used for insulation of general buildings or low-temperature pipelines, rock wool is generally used for insulation parts with a temperature of 500 degrees Celsius, and is mostly used for insulation of high-temperature thermal pipelines or power equipment.