钢结构建筑术语中“允许偏差”与“公差”的含义

天物彩板专注彩涂卷行业17年——钢结构建筑术语中“允许偏差”与“公差”的含义_钢结构彩涂板定制请拨打网站上方电话咨询

涂层钢卷的尺寸是制造商和用户共同关心的问题。用户想要购买的产品尺寸是订单尺寸，但实际上，按照一定的生产流程加工的产品与订单尺寸之间总是有上下偏差，即正负偏差。
当然，用户总是希望偏差越小越好，即精度越高越好。在实际生产中，尺寸精度控制越高，生产难度越大。为了保证双方的利益，产品标准中对尺寸偏差有一个规定的范围，即尺寸的“允许偏差”

彩涂钢板，厚度精度较高，公差较小，如0.5mm±0.03mm；具有正公差或负公差的彩色涂层钢板，如0.5mm（+0-+0.06mm）、0.5mm（-0.06-+0mm）。
彩色涂层成品的厚度比基材的厚度厚30μM左右
按无涂层测厚订货，按正负对称公差控制彩涂钢板厚度，

The size of coated steel coil is the common concern of manufacturers and users. The product size that users want to buy is the ordered size, but in fact, there is always an up and down deviation between the product processed according to a certain production process and the ordered size, that is, positive and negative deviation.

Of course, users always hope that the smaller the deviation, the better, that is, the higher the accuracy, the better. In actual production, the higher the dimensional accuracy control, the greater the production difficulty. In order to ensure the interests of both parties, there is a specified range for the dimensional deviation in the product standard, that is, the "allowable deviation" of the dimension
Color coated steel plate with higher thickness accuracy with smaller tolerance, such as 0.5mm ± 0.03mm; color coated steel plate with positive tolerance or negative tolerance, such as 0.5mm (+ 0 - + 0. · 06mm), 0.5mm (- 0.06 - + 0mm).
The thickness of the color coated finished product is 30 thicker than that of the substrate μ About M
Order according to the thickness measurement without coating, and control the thickness of color coated steel plate according to the positive and negative symmetrical tolerance,