【摘要】 在进行水冷壁内螺纹管材质拉伸试验时,是否去掉内螺纹会影响材料延伸率试验结果,为使试验结果真正反映材料的真实性能,应在加工拉伸试样时去掉管内壁的内螺纹。更多还原

【Abstract】 During metal elongation test of internalthread waterwall tubes,whether taking out the test influence due to interior thread that should influence the elongation result.In order that the test result can reflect the true performance of metal material,it is necessary to take out interior thread influence in samples machining.更多还原