Weldable sintered metal powder bearing, and its production process

Steel based calcium fluoride self-lubricating bearing

The invention discloses a self-lubricating bearing of steel-based calcium fluoride; the invention aims at providing a self-lubricating bearing of the steel-based calcium fluoride which has the advantages of high temperature resistance, small friction coefficient, and good mechanical property. The circumference direction of the self-lubricating bearing has an opening or a circular pipe connected by an interface; the circular pipe uses steel as a substrate and is characterized in that: a calcium fluoride layer is sintered on the inner circle surface of the substrate, and a wear resistant plastic layer is attached and sintered on the inner circle surface of the calcium fluoride layer. As the calcium fluoride layer is used as a transition layer of the binding of the steel and the wear resistant plastics, the bearing avoids the use of alloy power containing lead and copper, greatly reduces the manufacturing cost, saves non-ferrous metals, and is also beneficial to the environment protection.

Thermo shaping method of composite material component port surface

Thermo shaping method of composite material component port surface

A method for thermally preparing the composite surface of a part includes such steps as machining the part, sintering copper powder on the friction surface of the part, putting the part in mould, spreading the antifriction particles of non-metal material, and heating while pressing for sintering.

Sliding bearing for universal joint and manufacture method thereof

The invention discloses a sliding bearing for a universal joint and a manufacture method thereof, aiming to provide the sliding bearing for the universal joint, with simple structure, easy manufacture, reliable use and long service life, and the manufacture method thereof. The sliding bearing is a cylindrical steel sleeve with a bottom at one end and an opening at the other end, and a copper alloy layer is sintered on the inner surface of the steel sleeve. The manufacture method of the sliding bearing for the universal joint comprises the following steps of sintering plates of compound materials, blanking, forming and turning. When being used, the sliding bearing is pressed in a hole of a connecting fork, the opening end is sleeved on a cross universal joint, the bottom of the sliding bearing for the cross universal joint has the functions of sealing and dust prevention and can not fall off, and the sleeve of the cylindrical inner surface of the copper alloy layer is used as the friction ...