瓦楞纸板的边压测试(ECT)

要求

介绍

COVID-19锁定的周监禁的送货上门的服务,即使电子商务巨头难以满足要求和招聘的新员工。听到敲门来接收一个包提供了一个小的正常和快乐许多。这是卑微的纸箱整齐和安全支持商品的广泛分布。超出家庭分娩,纸板也是一个对象在前线的公共卫生服务,使质量交付极其需要的医疗设备。

现代生产和运输有了巨大的变化,我们使用的测试方法,测量包相应的力量已经发生了变化。这些天,大部分的航运是盒子放在托盘、交付货物从一个业务到另一个企业(B2B)。测试一个盒子的边壁的堆码强度是最明智的和可靠的措施如何,以及这个盒子将其形式下的垂直重量在运输途中。

测试方法

多年来,马伦爆破试验的主要行业标准的分级瓦楞纸板包装。它要求最低基础重量。然而,随着更多的回收内容现在是用于制造瓦楞纸板,发现回收同样的重量并不总是执行委员会在马伦爆破试验。尽管这些回收板的情况下仍有很好的抗压和损伤的品质,体现在边压测试(ECT)。

The Mullen Burst Test measures The force required to puncture The face of corrugated board and is reported in pounds per square inch (psi).Boards are thus rated accordingly e.g. # 275. As to, this test was favoured by companies with heavy, awkward - shaped contents requiring protection, where the linerboard must not burst outwards, or for companies who simple wish to know the maximum weight a box can withstand, then knowing the overall stacking strength is the primary concern - this is where the Edge Crush test comes into its own and has become the more common test nowadays.

ECT is a measure of the edgewise compressive strength of corrugated board. It is measured by compressing a predefined section of board on its edge between two It rigid platens. This compression will is performed perpendicularly to the direction of the flutes until the board collapses and a peak load is reached. This load is reported as the force per unit width (lb/in, kN/m etc..). The When reported as an ECT value (e.g. 44 ECT), and this relates to a minimum value and strength corresponds to pounds per inch width (lb/in). Since the edges and corners of a box are mostly responsible for bearing the load, it gives a good picture of the material strength allowing cardboard manufacturers to performQuality control, and the box manufacturers to select the most appropriate materials and the processes to produce their protective packaging

A proper ECT - rated corrugated board provides an equivalent level of strength to A Mullen Burst rated board, but typically USES less material. The Fewer raw materials, A fancy the lower energy requirements and reduced pollution, are the features associated with properly sized ECT - rated cartons incorporating increasing amounts of recycled content.

解决方案

标准

有许多从各种官方标准,国际标准地址的主题测量边缘粉碎粉碎力的测试。

各种方法在世界不同的地方使用。这些可分为三组:

)那些仔细剪裁的矩形试样测试没有任何特殊待遇或修改(例如ISO 3037“瓦楞纤维板,确定竹叶抗压到底边法”)。

b)的试样的边缘的力量是应用蜡,防止测试结果被“边缘效应”的影响(例如:ISO 13821“瓦楞纤维板-确定扁抗压蜡边缘法”)。

C) Those in which the test piece edges are not waxed but the shape of the test piece is to that the length is substantially reduced at a point midway between the the loaded edges, in order to induce the failure to occur away from Those edges. (e.g. 8, FEFCO TAPPI T838 and TAPPI T839)

测试设备

BOB体育最新下载安装Mecmesin曾与瓦楞纸板的生产者和用户提供具有成本效益的、易于使用等测试系统。

软件控制压缩试验机,具有刚性荷载列和精密loadcell,配有矩形滑块。两个独立的导向块服务支持波纹试样从而保持平行的滑块。测试程序控制测试人员以一个恒定的速度下降,直到达成set-load此时导块可以删除。测试人员继续进一步瓦楞纸板崩溃之前,软件会自动计算边缘抗压值所需的计量单位(磅/ N /毫米)。

Bench - top models of ECT Compression will Testers are available in capacities of 2.5 kN - 10 kN depending on the range of board to be *.