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冷弯试验用于检验船用钢板的塑性和韧性及其表面质量。是船板工艺试验的一种。但是,通过长期生产实践发现,船板的冷弯试验结果,却往往不能反映折边性能的好坏。船板入库检验时,冷弯试验是合格的,然而在进行折边、弯曲等加工时又往往发生裂纹而报废。这种现象,国产船板有,进口的同类型船板亦屡有发生,生产实际极需弄清这一问题的实质。
Cold-bend test is used to test the plasticity and toughness of marine steel plates and their surface quality. Is a craft test plate. However, it has been found through long-term production practice that the results of the cold bending test of ship plates often can not reflect the quality of the flanging performance. Ship board storage test, the cold bend test is qualified, but in the process of folding, bending and other cracks often occur and scrapped. This kind of phenomenon is caused by the frequent occurrence of the same type of shipboard that has been made in China and the actual type of shipboard imported. It is extremely necessary to clarify the essence of this issue in actual production.