Alexandria asbestos board KAON-1, asbestos cardboard, asbot fabric, asbestos cord SHAON 2-50 mm, delivery

Alexandria asbestos board KAON-1, asbestos cardboard, asbot fabric, asbestos cord SHAON 2-50 mm, delivery

General purpose asbestos cardboard (KAON-1) GOST 2850-95
Asbestos cardboard is made on the basis of chrysotile asbestos and is used as a fire-retardant heat-insulating material, as well as for sealing connections of devices, equipment and communications. Operable at temperatures up to +500C. Thicknesses: 2mm, 3mm, 4mm, 5mm, 6mm. Sheet size 800x1000 mm. Asbestos content 98-99%.
Gasket asbestos cardboard (KPA) TU 38314-25-19-92
from 2 to 10 mm, sheet dimensions 940x970 mm, working environment temperature up to +500С, the edges are not trimmed.

Asbestos cardboard (asbestos cardboard) is a fire-resistant insulating material made from chrysotile-asbestos fiber impregnated with bakelite. It is produced in the form of sheets 1000 mm long, 1000 mm wide and 2-10 mm thick. A. to. is used as a facing and heat-insulating material for sealing joints in instruments and apparatus, for the manufacture of gaskets, as a filler in combined asbestos-metal gaskets installed in communications operating with a pressure of 4 MN / m2 (40 kgf / cm2 at a temperature of 300 - 400C).
Thermal insulation is one of the most important tasks that arises from time to time both in the industrial and domestic spheres and requires a competent constructive solution when choosing a thermal insulation material. The use of asbestos cardboard (asbestos cardboard) solves the problems of heat-insulating and at the same time fire-retardant nature in a technologically competent and cost-effective way.
Asbestos cardboard is a mixture of chrysotile asbestos (98-99%) with a small amount of starch, which acts as a binder. Sheet asbestos for general purposes is produced in two grades KAON 1 and KAON 2.
Asbestos cardboard KAON 1 is used for thermal insulation at the temperature of the insulated surface not more than 500°C. Asbestos cardboard KAON 2 is used for sealing connections of devices, equipment or communications that operate at a maximum pressure of 0.6 MPa and maximum temperatures of the working medium: for gas - 500 ° C, alkaline medium - 200 ° C, solutions and molten salts, as well as organic compounds - 400°С, inorganic acids - 120°С.
Thermal insulation using sheet asbestos has a number of significant advantages over other materials. Asbestos cardboard is distinguished by its durability, reliability, high strength properties and biostability (it is not susceptible to infection by fungus or mold).
The use of asbestos cardboard provides complete fire safety, since asbestos cardboard does not burn, does not melt and does not emit harmful substances when heated to 500 ° C. Mechanical strength is an important characteristic of thermal insulation materials, since insulating coatings, which are easily deformed, lose their thermal insulation properties. Asbestos cardboard has high mechanical strength due to the structure of chrysotile asbestos, which, in fact, is a stone, which allows sheet asbestos to provide stable thermal insulation over a long service life.
Another significant advantage of asbestos cardboard is its ease of use, since thermal insulation using sheet asbestos does not require special skills and specialized tools. Asbestos cardboard is made in the form of sheets with a thickness of 3 to 6 mm of various nominal sizes. OgneuporEnergoHolding sells sheet asbestos with nominal overall dimensions of 1000x800mm.
General-purpose asbestos cardboard, grade KAON-1, 4 mm thick with nominal sheet dimensions of 1000x800mm, has the following symbol: Asbestos cardboard KAON-1, 4 × 1000 × 800 GOST 2850-95.

Asbestos cardboard has the following physical and mechanical characteristics:
Density:
KAON-1 and KAON-2 - from 1000 to 1400 kg/m3;
Tensile strength in longitudinal direction:
KAON-1 - not less than 1.2 MPa;
KAON-2 - not less than 1.5 MPa.
Tensile strength in the transverse direction:
KAON-1 - not less than 0.6 MPa;
KAON-2 - not less than 0.9 MPa.
Moisture content:
KAON-1 - no more than 7%;
KAON-2 - no more than 10%.
Loss of substance during ignition for both grades of sheet asbestos - no more than 15%.

Asbestos cardboard is easily machined - drilling, sawing, etc., but in the process of working with asbestos cardboard, dust is released into the air, which, if safety precautions are not followed, can be harmful to health. Therefore, the area where the mechanical processing of asbestos cardboard is carried out must be equipped with a supply and exhaust ventilation system, while the dust content in the air must be constantly monitored in the working area, in accordance with accepted sanitary standards.
In addition, workers carrying out work with sheet asbestos are provided with personal protective equipment - overalls and safety shoes, special dermatological products are used to protect the skin of the hands, and a respirator of the ShB "Lepestok" type is used to prevent asbestos dust from entering the lungs.
I accepttons of asbestos cardboard in batches. A batch of asbestos cardboard includes sheets of the same brand and size weighing up to 5000 kg and is accompanied by a quality certificate indicating the name of the manufacturer, name and brand of asbestos cardboard, batch number and weight, sheet sizes, test results or references to GOST, according to which the batch is made sheet asbestos.
When accepting a batch of asbestos cardboard from a batch, at least 10 sheets are subjected to visual inspection. The surface of the asbestos board sheet must be smooth without cracks, dents or foreign inclusions. An imprint from a cushioning fabric or rectilinear longitudinal grooves from a groove on the surface of a sheet of asbestos cardboard is allowed. The edges of the sheet must be even; for asbestos cardboard grade KAON-1, edge breaks or breaks of no more than 20 mm are allowed.
Asbestos cardboard is transported by any type of covered transport, mainly in packaged form, although at the request of the customer it is possible to deliver sheet asbestos without packaging.

Package

Packing of sheets of asbestos cardboard of the same size and of the same brand is carried out in polyethylene bags or in sack paper, which, in turn, are packed in wooden boxes. If sheet asbestos is packaged on wooden pallets or boards, sheets of asbestos cardboard are tied with a special steel or polymer tape.
The company sells asbestos cardboard in wholesale and small wholesale lots. At retail purchase of sheet asbestos, the mass of its packing unit does not exceed 30 kg. A label must be attached to the packaging unit of asbestos cardboard, which indicates the name of the manufacturer, the name and brand of asbestos cardboard, the nominal dimensions (length, width, thickness) of sheet asbestos, batch number, number of sheets and net weight, month and year of production of the batch , a reference to GOST, in accordance with which the batch was released. In addition, packaging with sheets of asbestos cardboard must be marked with a special handling sign or the inscription "Keep away from moisture."