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Mold for preparing blank of bimetallic thrust sliding bearing and its preparation method

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

Active Publication Date: 2016-02-24
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The second object of the present invention is to provide a method for preparing a mold for bimetallic thrust sliding bearing blanks that can solve the problem that the alloy layer at both ends of the bimetallic thrust sliding bearing blank is prone to cracks

Method used

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  • Mold for preparing blank of bimetallic thrust sliding bearing and its preparation method
  • Mold for preparing blank of bimetallic thrust sliding bearing and its preparation method

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Embodiment Construction

[0029] like figure 1 As shown, a bimetallic thrust sliding bearing blank preparation mold of the present invention includes a steel billet 1 and an asbestos board 3, the steel billet 1 has an inner hole 1-1 and an annular groove 1-2, and the annular groove 1- 2 is arranged on the hole wall of the inner hole 1-1, the inner hole 1-1 communicates with the annular groove 1-2, the two ends of the steel billet 1 are adhered with the corresponding asbestos board 3 through the high temperature resistant adhesive 2, The asbestos board 3 has a central hole 3 - 1 , and the central hole 3 - 1 of the asbestos board 3 communicates with the inner hole 1 - 1 of the billet 1 .

[0030] The annular groove 1-2 is arranged at one end of the steel billet 1 away from the center section S1 of the steel billet, the cross section of the annular groove 1-2 of the steel billet 1 is U-shaped, and the U-shaped opening of the annular groove 1-2 is far away from One edge of the central section S1 of the bi...

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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.

Description

technical field [0001] 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 [0002] 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, because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D13/10
Inventor 李娄明
Owner CRRC QISHUYAN INSTITUTE CO LTD
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