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Textolite sheet, rod buy in Minsk
Textolite sheet, rod
Textolite sheet, rod

Textolite sheet, rod

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Belarus, Minsk
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Description
  • working temperature from - 40 to +105 °C
  • melting temperature -
  • color is brown, light brown, dark brown
  • for production of panels, laying, gear wheels, worm wheels, plugs, sliding bearings
  • Textolites and steklotekstolita - the layered sheet pressed materials consisting of several layers of the cotton or glass constructional fabric impregnated with phenol formaldehyde pitch of cutting type.

    Textolites and steklotekstolita - the layered sheet pressed materials consisting of several layers of the cotton or glass constructional fabric impregnated with phenol formaldehyde pitch of cutting type.
    PT textolite is applied to production of gear wheels, plugs, bearings, sliding, panels, laying for depreciation products of technical appointment.
    PTK textolite is well processed by all types of machining. It is applied as constructional material to production of gear wheels, plugs, rollers, bearings. Products from PTK textolite provide noiselessness in work, considerably bigger service life, smaller specific weight in comparison with metal.
    PT-N textolite is intended for production of technical details of general purpose, assembly panels, laying.
    PTG-2 textolite is made on the basis of thermoreactive graphite, binding with an additive. It is applied to production of the condensing washers of water pumps and other purposes.
    PTM-2 textolite the sheet layered material resistant to effect of the transformer oil heated to 120C. It is used for production of inserts of bearings of rolling mills and other products of technical appointment.

    Scope
    Thanks to high physicomechanical properties, and also resistance to effect of gasoline, oils and substantially water, textolite of the PTK brand is applied in mechanical engineering to production of pro-masonry washers, inserts and bearings, pulleys and silent gear wheels.
    Nonmetallic cogwheels are more elastic and vibration-proof in comparison with similar products from steel under the same service conditions. Often they work together with metal and wear out less. Textolite gear wheels it is long work in distributive mechanisms of aviation and automobile engines, in reducers, in boxes of speeds of some machines, in transfers from electric motors with power up to 100 KW, in weaving looms. Make various types of gear wheels: cylindrical pryamozuby, cylindrical kosozuby and conic.
    Cogwheels cut out from textolite plates by the usual methods applied in production of metal cogwheels. PTM brand textolite with success is applied already many years to production of inserts of bearings of metallurgical rolling mills instead of bronze! Advantages of nonmetallic bearings is comparative ease of production, a good pererabatyvayemost, low coefficient of friction, a small istirayemost. Their application instead of metal, including bronze, and babbitovy allows to save up to 30% of the electric power, several times to increase service life and to considerably reduce wear of a neck of shaft of cars. Textolite bearings will apply in spherical mills, centrifugal pumps, turbines and other cars. At friction coefficient about 0,003-0,006 (with greasing) such bearings serve at 10-15 times longer bronze. Lack of textolite bearings in this case is the low heat conductivity of material complicating withdrawal of warmth of friction. For decrease in coefficient of friction and an istirayemost, and also increase of heat conductivity enter graphite into structure of the varnish used for production of material. At the same time service life of bearings even more increases.
    Process textolite on turning, drilling and grinders. Products in difference do not demand coloring from metal. Separate parts of material can be stuck together by various glues.

    Chemical firmness of material is not so high, however conditions of influence of acids of low and average concentration it can be applied in chemical industry (at additional protection by a bakelitovy varnish).\

    In electrical equipment sheet textolite A and B is applied to production of various insulating details, grooving wedges of electrical machines, pulleys, gear wheels, inserts of bearings, etc. In case of use of material as replacement of a getinaks, a detail of electroinsulating appointment (for example, blocks) are exposed to varnishing.

    Physicomechanical indicators of textolite

    Indicators / brand Units And B PTK PT
    Breaking point at a bend perpendicular to layers, not less MPa 90 100 152 142
    Breaking point at stretching, not less MPa 35 45 - -
    Breaking point at compression parallel to layers, not less MPa - - 160 155
    Impact strength on samples without cut for the PT, PTK brands and for brands A, B with a cut by a method of Sharpi KJ/sq.m 7,8 7,8 36 36
    Water absorption, no more mg or % 166 mg 255 mg 0,70% 0,70%
    Specific volume electric resistance, not less Om*m 106 106 - -
    Penetrative tension along layers (one-minute test) in the conditions of M (90 °C), in transformer oil, not less kV 15 15 - -
    Density g/cm3 1,5 1,5 1,4 1,4
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