non-bending board 不弯曲纸板
gypsum board bending strength tester 石膏板弯曲强度测试仪
board bending parts 板料弯曲件
Stiffness: It is a measure of the bending strength of paper and board.
挺度：挺度是衡量纸和纸板耐弯曲的强度性能。
Five specimens for three-point static bending tests, five for thickness swelling (ts) were cut from each board according to ASTM D1037-96.
五件样品为三个点的静电弯曲测试，五因为厚度增大(TS)从依照美国材料试验学会D 1037 - 96的每董事会被减低。
The bending process design, bending process parameters' calculation and selection, and bending die structure design for the forming of fixed board were all introduced in this paper.
介绍了弯曲件的弯曲成形工艺方案、工艺参数的计算与选取以及弯曲模具结构与设计，得出采用多道弯曲成形工序是合理的。
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