一种钎涂-热压工艺制备滑动轴瓦的方法及滑动轴瓦

By using a brazing-hot pressing process to process periodic grooves on tin-based composite Babbitt alloy materials and combining them with ultrasonic vibration, the problem of reinforcing phase segregation was solved, and a high-strength bond between the tin-based composite Babbitt alloy and the steel matrix was achieved, meeting the service requirements under heavy load and high-speed conditions.

CN122210370BActive Publication Date: 2026-07-17CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD
Filing Date
2026-05-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively bond tin-based composite Babbitt alloy materials containing reinforcing phases to the steel matrix without relying on melting processes. This results in reinforcing phase segregation and insufficient bonding strength, which cannot meet the service requirements under heavy load and high-speed conditions.

Method used

A high-strength bond between tin-based composite Babbitt alloy and steel substrate is achieved by processing periodic grooves on the bonding surface of the tin-based composite Babbitt alloy material and applying pressure and ultrasonic vibration under hot pressing conditions.

Benefits of technology

The problem of reinforcing phase segregation caused by density difference was solved, and a high-strength bond between tin-based composite Babbitt alloy and steel matrix was achieved, improving the bonding strength and reliability of the bearing bush.

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Abstract

本发明涉及轴瓦制造技术领域,具体而言,涉及一种钎涂‑热压工艺制备滑动轴瓦的方法及滑动轴瓦。首先对轴瓦钢基体进行挂锡,在钢基体的挂锡层表面上设置钎涂层;在锡基复合巴氏合金材料的待结合面上加工周期性凹槽;然后对上述两待结合件进行预热并装配,在热压状态下使两待结合件沿平行于其重叠面的方向进行往复式相对移动;待钎涂层熔化后,停止相对移动并复位,在第二压力下保压并向工件施加超声振动,冷却后得到滑动轴瓦。本发明方法通过钎涂‑热压工艺将锡基复合巴氏合金材料与钢基体结合,该方法无需完全熔化锡基复合巴氏合金材料,从根本上解决了因密度差异导致的增强相偏析问题,且能获得高结合强度。
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