连铸机拉矫辊等离子喷涂WC-20Cr-7Ni涂层性能

doi:10.13228/j.boyuan.issn0449-749x.20190521

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Abstract Straightening roller as the important component of continuous casting machine,whose working condition is poor and the wear is serious. In order to reduce the wear of roller,the WC-20Cr-7Ni coating with thickness of 0.2 mm was prepared on the surfaces of straightening roller and H13 steel plate by plasma spraying technology. The thermal shock resistance and abrasion resistance of the WC-20Cr-7Ni coating were investigated respectively through water quenching thermal shock and rolling experiments. Metallographic analysis and hardness testing were performed on the samples before and after thermal shock. The results show that the porosity of WC-20Cr-7Ni coating is low,the resistance of wear and thermal shock are both excellent,which can effectively improve the service life of the straightening roller.

Key words： straightening roller of continuous casting machine plasma spraying thermal shock resistance WC-20Cr-7Ni heat resistance coating

Received: 29 November 2019

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	Articles by authors
	SUN Deng-yue
	WANG Peng-he
	XU Shi-min
	RU Wen-di
	SUN Chen-guang

Cite this article:

SUN Deng-yue,WANG Peng-he,XU Shi-min等. Properties of WC-20Cr-7Ni coating by plasma spraying on straightening roller of continuous casting machine[J]. Iron and Steel, 2020, 55(9): 111-117.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190521 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I9/111

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