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Statistical Process Control: Friction - Slide Angle 统计过程控制:摩擦-滑动角
发布日期: 2002-11-01
瓦楞纸板的摩擦确保用瓦楞纸板制成的箱子不会从负载物上滑落。一些较新的材料处理方法依赖于箱子之间的一定摩擦力,因此,对于箱子制造商或其纸板供应商来说,控制摩擦力的大小非常重要。一个盒子在另一个盒子上刚开始滑动的倾斜角是两个盒子接触的两个表面之间静摩擦系数的量度。推导结果表明,摩擦系数等于倾斜角与水平面的切线。该系数,即角度本身,与施加在两个表面之间的力无关。 因此,摩擦系数或滑动角不取决于箱子的重量及其内含物。 本技术信息文件中涉及的测试旨在测量两个箱体表面之间的系数。它还可以用于在制造纸盒之前测量两个纸张表面之间的摩擦系数。该测试可用于瓦楞前的衬纸板,组合后的瓦楞纸板,以及在纸箱制造之前和之后的任何时间点。该表面的后续处理、摩擦或磨损会显著改变系数。如果将摩擦材料应用于表面,则尤其如此。 后续处理可以去除摩擦材料,从而降低摩擦系数。2002年重申。
Friction of corrugated board ensures that boxes made from that board will not slip from a load. Some newer methods of material handling rely on a certain friction between the boxes, so it is important for the boxmaker or his linerboard supplier to control the amount of friction. The angle of inclination at which one box on top of another will just begin to slide is a measure of the coefficient of static friction between the two surfaces of the two boxes in contact. Derivation will show that the coefficient of friction is equal to the tangent of the angle of inclination from the horizontal. The coefficient, hence the angle itself, is independent of the force applied between the two surfaces. Therefore, the coefficient of friction or slide angle is not dependent on the weight of the box and its contents. The test covered in this technical information paper was devised to measure the coefficient between two box surfaces. It can also be used to measure the coefficient of friction between two paper surfaces prior to fabrication of the box. The test can be applied to linerboard before corrugating, to corrugated board after combining, and at any point up to and after box fabrication. Subsequent treatment, rubbing, or abrasion of that surface can alter the coefficient significantly. This is especially true if frictionizing materials have been applied to the surface. Subsequent processing could remove the frictionizing material, thereby lowering the coefficient. Reaffirmed 2002.
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发布单位或类别: 美国-造纸工业技术协会
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