METHOD OF FINE-SHEETED ANTIFRICTION MATERIAL MANUFACTURING Russian patent published in 2018 - IPC B22F3/12 B22F3/24 B22F7/02 B32B5/02 

FIELD: machine building.

SUBSTANCE: invention relates to the field of mechanical engineering and is intended for use in friction units without additional lubrication and at high temperatures. Method of manufacturing of a flexible strip of fine-sheeted antifriction material for a friction unit without additional lubrication involves carrying out the laying of a metal mesh in the form of a flexible metal strip into a mold along a fluoroplastic liner, placing in each cell a metal mesh on a steel ball, applying a layer of fluoroplastic-4 on the surface of the laid balls and leveling it. Then lay the aluminum gasket on the layer of balls, put the punch on the resulting mold, unfold the mold 180°C, remove the punch and fluoroplastic liner, apply fluoroplastic-4 powder to the steel balls on the back side of the metal mesh, lay an aluminum gasket and place the punch on the resulting mold. After this, the said mold is pressed twice at a specific pressure of 21 to 23 MPa with a mold turning around the horizontal axis 180°C and holding at each pressing for 1 minute to obtain a pressed flexible tape. Sintering of said tape is then carried out under uniform heating to a temperature of 150°C for 1.5 hours and heating to 370°C for 1.5 hours with a hold at this temperature for 1 hour 40 minutes. After these operations, the strip is cooled, the molybdenum disulphide powder is coated on the surface of the tape, and the steel balls are rolled in the mesh cells, the opposite side is turned over, the molybdenum disulphide powder is applied and the steel balls are re-rolled.

EFFECT: improved quality of fine-sheeted antifriction material and reliability of products during its application are provided.

1 cl, 2 dwg