Mould and method for manufacturing bimetal plain thrust sliding bearing blank and manufacturing method thereof

The invention relates to a sliding bearing and bimetal technology, which is applied in the field of centrifugal casting to prepare a mold for a bimetal thrust sliding bearing blank and its preparation field. Effect
CN104043802AActive Publication Date: 2014-09-17CRRC QISHUYAN INSTITUTE CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CRRC QISHUYAN INSTITUTE CO LTD
Publication Date
2014-09-17

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Abstract

The invention discloses a mould for manufacturing a bimetal plain thrust sliding bearing blank and a manufacturing method of the mould. The mould comprises a steel billet and asbestos plates. The steel billet is provided with an inner hole and an annular groove, the annular groove is formed in the hole wall of the inner hole, the inner hole is communicated with the annular groove, the two ends of the steel billet are provided with the corresponding asbestos plates in an adherence mode through high-temperature-resisting binding agents, central holes are formed in the asbestos plates, and the central holes of the asbestos plates are communicated with the inner hole of the steel billet. The mould is simple in structure and can solve the problem that alloy layers at the two ends of the bimetal plain thrust sliding bearing blank are prone to being cracked. The manufacturing method of the mould is further disclosed.
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Description

[0001] technical field

[0002] The invention relates to a centrifugal casting mold and a preparation method thereof, in particular to a centrifugal casting mold for preparing bimetallic thrust sliding bearing blanks and a preparation method thereof. Background technique

[0003] Steel-backed copper-lead alloy bimetallic thrust sliding bearings are widely used in 4400 horsepower diesel locomotives and other rolling stock, construction machinery and other products, and their load capacity and mechanical properties are superior to those of single alloy sliding bearings. The commonly used methods for manufacturing bimetallic thrust sliding bearing blanks include static casting method, powder non-sintering method and multi-step composite process method. Due to the large difference in the performance of the above processes, some use molds and some do not use molds. , and there are closed and non-closed ones in the process of using molds. During the centrifugal casting process, b...

Claims

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