Refractory tape

Refractory tape

Refractory tapes are made from aluminum oxide composites coated with ceramic fibers. The presence of ceramics in this type of refractory material, as the main material of their preparation, causes strength, durability, flexibility and at the same time, adaptability required for most activities that require a temperature of about 2373 degrees Fahrenheit (equivalent to 1300 degrees Celsius). On the other hand, the high amount of aluminum oxide used in the production of this product makes it resistant to materials such as hot oils. Other important fibers used in the preparation of refractory tapes include fiberglass and aramid.

Although fireproof strips are very similar in appearance to fireproof fabrics, the width of these strips is usually no more than 20 cm.

They are dry and hard when you receive fireproof tapes; Therefore, they should be soaked in water or soaked in a special hardener to make them completely flexible. You can then wrap them around a variety of simple and intricate shapes to fit them perfectly. With gradual re-drying, the refractory strips become stronger and stronger and become a durable composite structure.

Among the many applications of refractory tapes, the following can be mentioned:

Manufacture of gaskets with high thermal and power resistance
Insulation of boilers
Suitable replacement for asbestos in induction glass melting furnaces
Covering pipes that need to withstand high temperatures
Insulation of different valves
Stoves, induction heating furnaces and their insulators
Electrical insulation for band heaters and strip heaters
Reinforcement of composite structures
Electrical insulation of small appliances
Insulation of wires and cables
Insulation of exhaust pipes
There are many types of refractory tapes on the market, each with a different function due to their different materials and, consequently, their unique properties. The following refractory tapes can be named as the most widely used in this field:

Fiberglass refractory tape; These tapes, also known as fiberglass tapes, are one of the best-selling sealing tapes on the market. The reason for this is its high thermal and tensile strength, in addition to the mechanical strength and strength of this form of refractory tapes. In order to achieve the desired strength, various methods are used to weave these strips, the most famous of which is the woven weave around the world. Fiberglass refractory tapes that are produced in different widths between 3 to 10 cm and thicknesses between 1 to 3 mm and are often marketed in packages between 2.5 to 5 kg. These strips can also cover a wide temperature range; From temperatures below zero degrees to temperatures between 450 and 600 degrees Celsius. This makes them a viable option for sewing and producing firefighting clothing and other such applications. Of the various types of refractory materials, the following can be mentioned:
Silk fiberglass fireproof tape
Adhesive fiberglass fireproof tape
Fiberglass fireproof tape
Asbestos refractory tape; These tapes are one of the oldest products made of refractory fibers, which despite the public awareness of the dangers of asbestos and the ban on mass production a decade ago, are still used in many places, especially in motorhomes. Maybe that's why the name Dangerous Dust is applied to this type of refractory material. Of course, today we try to avoid the use of asbestos as much as possible in places that are in close contact with people, and use appropriate alternatives in the market.
If we look at asbestos fibers under a microscope, we will notice their sword shape, and this strange shape causes high cohesion and maximum reduction of energy loss when using asbestos refractory tapes; Because it acts like a high-density tissue. This allows the asbestos refractory tape to withstand temperatures of up to 550 degrees without wasting much energy. Asbestos refractory tape is marketed in a width of 1.5 to 5 cm and is used in sealing motorhomes, furnaces, boilers, etc .; That is, in places where their contact with humans is prevented as much as possible.

Ceramic refractory tape; As mentioned earlier, the thermal resistance of ceramic is higher than that of other refractories. This product is one of the best types of refractory tapes and with a bearing capacity of up to about 1200 degrees, without losing its structure, it is a suitable alternative to asbestos refractory tapes. Therefore, using this type of refractory tapes will be a great help to humans and the environment for a better future. Sometimes, to further strengthen, steel wires are used in the texture of ceramic refractory tapes to increase its resistance to pressure. Due to the partial use of fiberglass in the production of these refractory tapes, ceramic refractory tape is also called fiber ceramic tape. Ceramic refractory tapes are produced and marketed in widths between 2 to 10 cm and various thicknesses between 1.5 to 3 mm, which are used in various fields such as sealing and insulation of furnaces and thermal boilers, petrochemical industry and exhaust machines of thermal machines. .
Of the various types of refractory yarns, the following can be mentioned:

Fiber ceramic refractory tape
Wire fiber ceramic refractory tape
Foil ceramic refractory tape
Graphite refractory tape; This type of refractory tape, as its name implies, is made of 99% graphite. This percentage of purity makes the N tapes very flexible Graphite burner, which makes them easy to use to produce and install flanges in various and very flexible shapes. The thermal tolerance of this type of refractory tapes is up to more than 700 degrees. Other features of graphite refractory tape include very low heat transfer and good sealing. This advantage has made it possible to use them in hot oils, boiling water and gaseous environments. In addition, other common applications of graphite refractory tape include sealing of industrial pumps and mixers. The width of this type of refractory tapes is between 1.2 to 2.5 cm and its thickness is between 0.5 to 1 mm. Graphite refractory tapes are produced in two forms: non-adhesive and adhesive.