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电工钢反复弯曲试验的影响因素 被引量:1

Influence Factors of Reverse Bend Test for Electrical Steel
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摘要 电工钢反复弯曲次数是电工钢性能检验的重要指标之一,直接影响到用户在使用电工钢过程的机加工性能。主要分析了试样宽度、试样张力、晶粒取向、反复弯曲设备等因素对电工钢反复弯曲试验的影响,并对各个因素的影响程度进行量化以及原因探讨,从而归纳形成各影响因素的基本规律,以便为电工钢实际生产、用户使用提供科学指导。结果表明:试样宽度增加,反复弯曲次数也会不断增加,晶粒位向对取向电工钢的反复弯曲次数影响较大,当支座顶部到拨杆底部的距离减小或拉紧力增加时,反复弯曲次数会不断减小,但当拉紧力达到60N以上时,对反复弯曲次数影响不大,试样经退火后,反复弯曲次数略有上升。 The reverse bend number is an important performance of electrical steels′capabilities,affecting the machining performance directly when the customers used.It investigated some factors,such as sample′s width,sample′s tension load,grain orientation and equipment,how to effect the reverse bend test for electrical steel,measured the influence degree,and discussed the reason,in order to form basic rules which could be guided the manufacturing and using for electrical steel.Results showed that the reverse bend number would increase while the sample′s width increased,and the grain orientation greatly affected the bend number of grain-oriented electrical steel,and the bend number reduced when the interval between stationary jaws and movable jaws decreased or the tension load increased,but it had no obvious influence if the tension load up to 60N,and also the bend number increased slightly after annealed.
出处 《理化检验(物理分册)》 CAS 2014年第7期499-502,506,共5页 Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词 电工钢 反复弯曲试验 影响因素 electrical steel reverse bend test factors
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  • 1BSEN10106-1996, Cold Rolled Non-oriented Electrical Steel Sheet and Strip Delivered in the Fully Processed State
  • 2ISO7799-1985, Metallic Materials-sheet and Strip 3 mm Thick or Less-reverse Bend Test

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