YD/T5132-2005移动通信工程钢塔桅结构验收规范(英文版)
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6.2 Cutting

Ⅰ Dominant Items

6.2.1 In the cut surface or shear surface of steel material,there shan't be any crack,slag inclusion,stratification,or wane more than 1mm.

Quantity for inspection:one hundred percent;

Inspection method:examine with eyes or hand lens or dial gauge;and when the inspection result is in doubt,detect via permeation flaw detection or magnetic particle inspection or ultrasonic flaw detection.if in doubt.

Ⅱ General Items

6.2.2 The allowable variations of cutting shall be in conformity with the requirements listed in the Table 6.2.2.

Quantity for inspection:inspect randomly 10% of the total of cut surfaces,but not less than 10;Inspection method:examine with steel rulers or clearance gauges.

Table 6.2.2 Allowable variations for cutting(mm)

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Note:t is the thickness of cutting face;d is the diameter of round steel.