二次冷轧压下率对镀锡板组织性能的影响

doi:10.13228/j.boyuan.issn0449-749x.20190102

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Abstract In order to develop high-hardness secondary cold-rolled tinplate, effects of the secondary cold rolling reduction on the microstructure and properties of the tinplate were studied by the hardness tester,tensile tester,optical microscope and X-ray diffractometer. The results showed that as the secondary cold rolling reduction rate increasing,the hardness and strength of the test steel increased,the anisotropy increases,and the elongation decreased. When the secondary cold rolling reduction rate was 44%,the DR-9M can be achieved. At the same time, the use of high carbon and nitrogen fortification system combined with low temperature annealing is not conducive to the formation of favorable texture {111}. The peak of texture orientation density appears in {001}<110>~{114}<110>,{223}<110 >~{445}<110> and {554}<225>,it is easy to produce ears in the 45° direction during stamping deformation.

Key words： tinplate nitrogen-strengthened double cold-reduced microstructure property

Received: 18 March 2019

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	Articles by authors
	MO Zhi-ying
	FANG Yuan
	LIU Wei
	WU Zhi-guo
	WANG Ya-qing
	SUN Chao-fan

Cite this article:

MO Zhi-ying,FANG Yuan,LIU Wei等. Effect of secondary cold rolling reduction rate on microstructure and properties of tinplate[J]. Iron and Steel, 2019, 54(12): 70-74.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190102 OR http://www.chinamet.cn/Jweb_gt/EN/Y2019/V54/I12/70

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