clamping a support body in a centrifugal casting machine
The invention relates to a method for manufacturing a hollow cylindrical sleeve bearing (plane bearing), comprising the following steps: clamping a support body in a centrifugal casting machine whose speed of rotation is controllable, in such a way that the longitudinal axis of the bore of the support body runs approximately horizontally; application of a zinc chloride melt, which contains tin(II) chloride, 
to the surface to be tinned of the bore of the heated support body; precleaning of the surface to be tinned at a low circumferential speed of the support body via a pool (sump) of the zinc chloride melt, which essentially remains in the lower region of the hollow cylinder to be tinned; pretinning of the surface to be tinned at a low circumferential speed of the support body, at least at a temperature of approximately 232 DEG C, so that an electrochemical cementation reaction from the zinc chloride melt to the surface to be tinned takes place; application of a tin-phosphorus melt having a considerably higher temperature to the pretinned surface, in order to reduce the tin oxide layer formed and to achieve mixing with the liquid tin film to produce a melt free of oxide skins, and increasing the speed of rotation of the centrifugal casting machine, pouring a white metal (babbitt) onto said melt and cooling down. 
In such a sleeve bearing, the intermetallic layer which is formed between an iron layer of the support body and the white metal, is thinner than 0.0005 mm.
As an ISO 9002 and ISO 14001 certified company incorporated in 1950s, Federal Pipe Centrifugal Casting Machine Co., Ltd is a leading manufacturer of Centrifugal Casting Machine in China. Our hot mold Vertical, Horizontal and Cantilever centrifugal casting machines, characterized with great flexibility and variability and used, are used to produce wide variety of castings such as Brake Drums, Discs, Flywheels, Iron Pipes, Steel Alloy Tubes, Mill Rolls, Copper/bronze tubes, Cylinder Liners, Pidgeon Process Magnesium Metal Reduction Retorts and Non-ferrous Castings. Combining proper mold design, mold coating, mold spinning speeds, pouring speeds, cooling rates and metal chemistry, our hot mold centrifugal casting machines are high in automation, reliable in running, simple in operation, higher yields and low in energy consumption. The machines range from simple, manually operated equipment to fully automated systems by utilizing programmable logic controllers (PLC) with functions of automatic pouring, automatic mold coating, automatic mold brushing and automatic extraction. Our centrifugal casting molds are forged made with quality material of 21CrMo10 and 30CrMo. Our engineering team and R & D department staffed more than 20 engineers. Enriched with Know-How and Do-How, we provide the technical solutions for customers in form of Turn-Key or EPC project with long-term After-Sale Service.
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