Refractory yarn is one of the most widely used products in the group of refractory materials.
Refractory yarn or refractory rope is used for insulation, sealing and sealing in various types of industrial tanks, shafts and pumps, as well as in large industries such as shipbuilding, power plants and petrochemicals.
Refractory yarn is made and sold in various types in the world’s huge industry today.
The classification of these refractory yarns is based on the temperature of the products.
In this page, we will examine 3 groups of these refractory yarns. But if you have enough information about these threads, you do not need to continue reading this article; Click on the product you want to enter the dedicated page of your desired refractory yarn.
But we invite you to visit our page until the end of this article.
What is fireproof yarn?
Refractory yarn is a group of types of refractory fibers that are sometimes woven in a round shape and sometimes in a rectangular shape and are used as packing.
But another group of refractory yarns sold without weaving is called refractory fibers.
Refractory yarns are sometimes reinforced with silicone oil or metal wires to increase mechanical and chemical resistance.
How to make fireproof yarn:
First, it is better to deal with the method of making fireproof yarn. In all refractory yarns, glass fibers or fiberglass fibers are used.
The reason for using fiberglass to make fireproof yarn is because it minimizes heat transfer, and this is excellent for the production of various types of thermal insulation.
In the past, only asbestos refractory yarn was used for insulation and sealing. But after the dangers and dangers of asbestos were revealed to everyone; A wide range of refractory yarns were made and used.
Fiberglass refractory yarn is woven entirely from refractory fibers. These fibers are formed in rectangular and square sections in packing weaving machines.
Of course, in many cases, fiberglass fibers are woven round and used.
But refractory ceramic yarn is made of different materials such as silica and oxide. But to reduce the heat transfer of this product, fiberglass is used in the structure of ceramic refractory yarn.
But the third group of fireproof yarn; Refractory yarn is asbestos. Although the use of asbestos refractory yarn is completely restricted and prohibited. But there are many machines that need to use asbestos yarn for better performance and higher efficiency.
Let’s take a closer look at each of these threads.
Fiberglass fireproof yarn:
Fiberglass is a group of fibers that use glass fibers as a raw material. Glass fibers are divided into two general categories based on geometry – appearance characteristics: continuous fibers used to produce yarn and fibers, and discontinuous or short fibers used to make boards, filters or fiberglass blankets. Fiberglass fibers are shaped like wool and cotton and used to make ropes, fabrics and other textiles. Fiberglass wool, which is usually made of discontinuous glass fibers, is used as thermal and sound insulation. There are three types of fiberglass fibers: type E, which is used for electrical purposes, type T, which is used for thermal applications, and type C, which is used for chemical applications.
Fiberglass refractory yarn, woven in a square, is a compressed rope of fiberglass fibers. This rope shows good insulating properties at high temperatures, ie up to 550 ° C. Other features of this product include fire resistance, good chemical resistance and tolerance of pH range = 2-12, low thermal conductivity, high tensile strength, high dielectric resistance. This product can be used for sealing and sealing stoves, boilers. To improve the thermal efficiency of this product, it can be covered with graphite. Packaging Manufacturer of packaging seals in China, offering high temperature insulation, fiberglass woven rope, high temperature woven rope, heat resistant, ceramic woven fabrics with aluminum, thermal insulation
Ceramic refractory yarn:
Today, ceramic fibers are produced for the production of ceramic blankets or processing of refractory ceramic yarns to a wide range of woven products required in this field. Ceramic yarns used in ceramic fabrics for use in high temperatures up to about 1400 degrees They have a heat tolerance. Other features of this product include maintaining flexibility for use in thermal sealing and as a filler in areas such as sealing and sealing doors, fittings and also for the texture of packings. Ceramic refractory yarn is usually used to make ceramic fabrics, cob covers, for webbing – a product in which ceramic fibers are reinforced with inconal wire or fiberglass.
Asbestos refractory yarn:
Long (white) asbestos chrysotile fibers are used to make asbestos rope. Asbestos is one of the oldest natural compounds that has long been used as thermal insulation. Asbestos rope can be used as insulation, to seal and seal pipes, boilers and hot stoves to prevent fire. This product is also called by different names such as asbestos cable, rope, thread, string and string. This yarn can be woven in three forms: circular and rounded and twisted cross section, each of which has its own uses.
