推荐回答(5个)
(1)二者概念不同:N/m是每米多少牛的单位;N/cm是每厘米多少牛的单位。
(2)二者数据单位不同:两者数值上相差100倍,即1N/m=100N/Cm。
(3)二者用途不同:一般在表示大面积的物体所受的边压强度需要用到N/m,表示小面积的物体所受的边压强度用N/cm。

扩展资料:
边压强度是影响纸箱抗压强度的重要因素之一,它是瓦楞纸板生产过程中主要的质量控制项目,通过边压强度可以预测纸箱抗压强度,所以此项指标倍受重视。边压强度以N/m表示。
边压强度(ECT)测试时,试样要从3个样箱中,每个分别切取3块无机械压痕、无印刷痕迹和损坏的试样,试样的瓦楞方向应为短边,试样规格为25mm ×100mm,误差±0.5mm。
这就要求取样器的刀口应保持绝对的锋利,并且刀架上的刀片,安装位置要合适,刀刃口与刀槽所成角度可调整至45°为适。此外,刀尖不可碰擦到刀槽底部,防止刀口弯曲变形,使切取出来的试样边缘瓦楞容易出现损坏和起毛现象,影响检测的准确性。
参考资料:百度百科——边压强度
N/m表示:每米的牛顿数,N/cm表示:每厘米的牛顿数。两者相差100倍,即1N/cm=100N/m。
边压强度是一定宽度的试样,在单位长度上所能承受的压力,它是指承受平行于瓦楞方向压力的能力。边压强度是影响纸箱抗压强度的重要因素之一,它是瓦楞纸板生产过程中主要的质量控制项目,通过边压强度可以预测纸箱抗压强度,所以此项指标倍受重视。边压强度以N/m表示。
N/m和N/cm的区别如下:
N/m表示每米的牛顿数,N/cm表示每厘米的牛顿数。两者相差100倍,即1N/cm=100N/m。
1、边压强度:边压强度是一定宽度的试样,在单位长度上所能承受的压力,它是指承受平行于瓦楞方向压力的能力。边压强度是影响纸箱抗压强度的重要因素之一,它是瓦楞纸板生产过程中主要的质量控制项目,通过边压强度可以预测纸箱抗压强度,所以此项指标倍受重视。边压强度以N/m表示。
2、边压强度的运算方法
瓦楞纸板边缘耐压的测定(GB/T6546)中,实验对样品的取样要求是很严格的,要使用专门的取样工具对产品进行取样,整个实验结果不成立;在实验过程中,要使用测试辅助工具把试样竖立垂直上下压缩板板来完成测试。
纸板垂直边缘抗压强度按以下公式进行计算,以N/m表示:
R=F/L*1000
式中:
R表示垂直边缘抗压强度:N/m;
F表示最大压力:N;
L表示试样长边的尺寸:mm
N/m是每米多少牛的单位;
N/cm是每厘米多少牛的单位。
两者数值上相差100倍,即1N/m=100N/Cm。
对不起,就是网友“hyw322”说的,答案弄反了,应该是1N/cm=100N/m。
楼上的:
1N/m=1N/100cm=(1/100)N/cm 吧
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