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A platform for research: civil engineering, architecture and urbanism
Wear-resistant graphite-based self-lubricating bearing material and preparation method thereof
The invention provides a wear-resistant graphite-based self-lubricating bearing material and a preparation method thereof. The preparation method comprises the steps that pitch coke, petroleum coke and carbon black are weighed in proportion, then pitch is added, the mixture is evenly mixed and pressed into a blank, the blank is sequentially subjected to high-temperature curing and graphitization, and a graphite-based blank is obtained; and the graphite-based blank is sequentially subjected to pressure impregnation of unsaturated aldehyde ester, metal antimony impregnation and secondary pressure impregnation of unsaturated aldehyde ester, and then the wear-resistant graphite-based self-lubricating bearing material is obtained. According to the preparation method provided by the invention, unsaturated aldehyde ester and metal antimony are adopted for impregnation, so that the lubricating property of resin impregnated graphite is retained, the Shore hardness, compressive strength, breaking strength and high-temperature resistance of the resin impregnated graphite are greatly improved, the porosity is reduced, and the application requirements under high-temperature, large-load, low-rotating-speed and lubrication-free working conditions can be met; the preparation method is simple, the process is controllable, large-scale production is easy, and the practical application prospect is good.
本发明提供了一种耐磨型石墨基自润滑轴承材料及其制备方法，制备方法包括：按比例称取沥青焦、石油焦和炭黑后加沥青混匀压制坯料，将坯料依次经高温固化和石墨化得到石墨基坯料，将石墨基坯料依次经加压浸渍不饱和醛酯、浸渍金属锑和二次加压浸渍不饱和醛酯后，即得耐磨型石墨基自润滑轴承材料。本发明所提供的制备方法通过采用不饱和醛酯和金属锑浸渍，在保留浸树脂石墨润滑性的同时，其肖氏硬度、抗压强度、抗折强度和耐高温性能大大提高，且气孔率降低，可满足高温、大负荷、低转速和免润滑工况下的应用需要；其制备方法简单，工艺可控，易于规模化生产，实际应用前景好。
Wear-resistant graphite-based self-lubricating bearing material and preparation method thereof
The invention provides a wear-resistant graphite-based self-lubricating bearing material and a preparation method thereof. The preparation method comprises the steps that pitch coke, petroleum coke and carbon black are weighed in proportion, then pitch is added, the mixture is evenly mixed and pressed into a blank, the blank is sequentially subjected to high-temperature curing and graphitization, and a graphite-based blank is obtained; and the graphite-based blank is sequentially subjected to pressure impregnation of unsaturated aldehyde ester, metal antimony impregnation and secondary pressure impregnation of unsaturated aldehyde ester, and then the wear-resistant graphite-based self-lubricating bearing material is obtained. According to the preparation method provided by the invention, unsaturated aldehyde ester and metal antimony are adopted for impregnation, so that the lubricating property of resin impregnated graphite is retained, the Shore hardness, compressive strength, breaking strength and high-temperature resistance of the resin impregnated graphite are greatly improved, the porosity is reduced, and the application requirements under high-temperature, large-load, low-rotating-speed and lubrication-free working conditions can be met; the preparation method is simple, the process is controllable, large-scale production is easy, and the practical application prospect is good.
本发明提供了一种耐磨型石墨基自润滑轴承材料及其制备方法，制备方法包括：按比例称取沥青焦、石油焦和炭黑后加沥青混匀压制坯料，将坯料依次经高温固化和石墨化得到石墨基坯料，将石墨基坯料依次经加压浸渍不饱和醛酯、浸渍金属锑和二次加压浸渍不饱和醛酯后，即得耐磨型石墨基自润滑轴承材料。本发明所提供的制备方法通过采用不饱和醛酯和金属锑浸渍，在保留浸树脂石墨润滑性的同时，其肖氏硬度、抗压强度、抗折强度和耐高温性能大大提高，且气孔率降低，可满足高温、大负荷、低转速和免润滑工况下的应用需要；其制备方法简单，工艺可控，易于规模化生产，实际应用前景好。
Wear-resistant graphite-based self-lubricating bearing material and preparation method thereof
一种耐磨型石墨基自润滑轴承材料及其制备方法
SONG WEIQIANG (author) / SHEN ZEWU (author) / WEN GUANGFA (author) / CHENG YUANYAO (author) / YI QIAO (author) / ZHOU HUIHUI (author) / YANG DAIJUN (author)
2021-06-29
Patent
Electronic Resource
Chinese
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