FIELD: chemical industry; other industries; methods of production of the waterproofing materials in the sheet shape.
SUBSTANCE: the invention presents the method of production of the waterproofing materials in the sheet shape, which is used for facing of the ponds, lakes and the refuse dumps provides for disposition of the central layer containing the capable to swelling bentonite between appropriate carrying layers, and joining of the carrying layers by the ultrasonic welding in the intervals or along one or more lines by means of making the base plate protrusion to get in contact with one carrying layer and making the sonotrode to get in contact with the other carrying layer in the opposite places and in the intervals or along one or more lines and at such a control over the sonotrode, that to cut through the central layer and to join the carrying layers. The invention presents the characteristic of the second version the method of production. The technical result of the invention is the increased strength of the produced waterproofing material at its shift.
EFFECT: the invention ensures the increased strength of the produced waterproofing material at its shift.
14 cl, 5 dwg
