SU586001A1 - Method of making parts subject to friction - Google Patents

Description

(54) METHOD FOR MANUFACTURING FRICTION PARTS

one

The invention relates to a method for manufacturing friction type parts for sleeves for friction bearings and can be used in the woodworking and manufacturing industry.

The known method of manufacturing and parts of tren-type sleeves for sliding bearings is by single-axial compaction of solid wood, dividing it into elements and laying them from the inner surface of the sleeves with the direction of uniaxial il.

There is also known a method of manufacturing parts for friction-type sleeves for sliding bearings by forming blanks from a press) masses, one-hour consolidation of a solid joint (siiya, dividing it into elements, and placing them from the B1 internal surface of the sleeves with the direction of uniaxial sealing of a per1pe1ndi: cool 1rno the direction and the next; its joint hot pressing in the radial direction 2.

A disadvantage of the known methods is the low quality of the manufactured friction parts.

The purpose of the invention is to improve the quality of parts friction.

This is achieved by the simultaneous installation of solid wood elements from the inner surface of the sleeves by inserting pre-impregnated antifriction materials with spoeée sheets, and pressing material is poured between the solid wood elements and the slone sheets, and before inserting the impregnated shlone sheets onto their surfaces (thickness from the side of adhesive contact with the elements of the solid wood, the ICs are applied with a bond, for example, in the form of a varnish containing fluoroplastic.

The drawing shows a sleeve of a sliding bearing, made in one of the variants of the slide.

The sleeve comprises a preform in the form of a sleeve, the preform I of press masses, the elements 2 of solid wood, which are made and stacked according to a known method.

Inside the sleeve 1, except for elements 2 of solid wood, placed 3 sheets of veneer impregnated with antifriction materials 3, and between the elements 2 of solid wood and sheet 3 of veneer are filled up with press material 4.

A method for manufacturing friction type parts for sleeves for slip covers includes the following technical operations: forming cylindrical blanks 1 (in the form of a sleeve) from press masses, for example, shredded wood with a binder, which can be

phenol formaldehyde resin; uniaxial

compaction tseioi wood; dividing solid wood into elements 2, laying the latter from the side of the internal surface of the billet I of a cylindrical shape with a direction of uniaxial compaction perpendicular to the direction of subsequent joint hot pressing in the radial direction; simultaneous with the laying of elements 2 of solid wood from the side of the inner surface of the friction, the introduction of sheets of 3 veneers impregnated with antifriction materials; a gap between the pshona sheets 3 and the solid wood elements 2 of the press material impregnated with a binder, for example a phenol-formaldehyde resin; joint radial pressing with a specific load of 250-400 KTO / icM and 140-1.65 ° iC.

Before laying the elements 2 of solid wood inside the product, a centering rod is installed, and joint radial pressing is accompanied by thermal treatment at the rate of 1.5-2 minutes per 1 mm of wall thickness and sleeve.

. Preliminary penetration of the sheets 3 by the anti-friction materials is produced by one of the known methods.

The intermediate layer is pre-bss; material 4 serves for gluing together with elements 2 of solid wood sheets 3 of the shnon and ensures their strong adhesion. Instead of filling the press material 4 from the side of adhesive contact with the elements 2 of solid wood, a binder can be applied, for example, in the form of a lacquer containing fluoroplastic or felenol-formaldehyde resin. The number of sheets of Schoon and

their; summyrauk) tOLODIU VYB. on the basis of the calculation of the magnitude of the dousti, mogu ekupluatatsioinototo wear of the bearing surface of the sliding bearing.

Claims (2)

Invention Formula :one. A method of manufacturing friction-type friction parts for sliding sliding by forming blanks from a press mace, uniaxial compaction of solid wood, dividing it into elements and placing them from the inner surface of the bushing with a direction of uniaxial compaction perpendicular to the direction of the subsequent joint hot pressing in the radial direction, characterized in that, in order to improve the quality of the friction parts, simultaneously with the laying of solid wood elements on the inner side of the surface, The pre-impregnated Lit anti-friction materials are introduced. veneer, and between the elements of solid wood and veneer sheets fall asleep press material. 2. A method according to claim I, characterized in that before the impregnated veneer sheets are introduced onto the surface from the side of adhesive contact with the elements of solid wood, the binder is applied, for example, in the form of a varnish containing fluoroplastic. The sources of I1H forms a chi and taken into account during the examination 1. USSR author's certificate No. 458446, cl. In 27M 1/02, 1973. 2. USSR author's certificate No. 522067, cl. In 27M 1/02, 1974.