Abstract: The composition comprises a carbide-forming element, a carbon-containing pound selected from the class of hydrocarbons, having a boiling or sublimation point of 180.degree. to 750.degree.0 C., staying in a solid state at room temperature, an activator and an inert filler, mass %:______________________________________ carbide-forming element 40-70 carbon-containing compound 0.5-2.5 activator 0.2-5.0 inert filler the balance ______________________________________It is recommended that the function of the carbon-containing compound be performed by diphenyl, naphthalene, anthracene, the function of activator, by halogen-containing ammonium salts, and the function of inert filler, by aluminum oxide, magnesium oxide or silicone dioxide.

Abstract: A method for hot rolling of bevel gears by infeeding a rotating gear roll die having a synchronizing member into a rotating work gear having a synchronizing member. First, the teeth of the synchronizing members are brought into engagement, and then rough forming of teeth on the work gear takes place under the action of the teeth of the gear rolling die, wherein the synchronizing member of the work gear is acting as the driving member, and finish rolling of the rolled teeth of the work gear takes place, with the rotating gear rolling die acting as the driving member.An apparatus for carrying out the above method for hot rolling of bevel gears includes a work gear spindle having its power rotation drive and a gear rolling die spindle having power drives for its rotation and axial movement, the spindles being installed in the bed at an angle with respect to each other.

Abstract: A mill for hot rolling of bevel gears comprising a stand, a gear blank spindle rotatably mounted in the stand, a gear blank clamping device having a hydraulic cylinder and arranged in the gear blank spindle, a tool spindle mounted in the stand with the possibility to rotate and to travel transversely to the axis of the gear blank spindle, a gear blank heating device having a drawing mechanism. Fitted on the rod of the hydraulic cylinder of the driving mechanism of the gear blank heat device is a stop member brought into immediate contact with a cam. The mill also incorporates a tie-rod articulated to the cam and a two-arm lever having its one arm articulated to the tie-rod and the other one to the rod of the hydraulic cylinder of the gear blank clamping device.