GB/T 46088-2025Non-destructive testing — Visual testing method of long material (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed and coordinated by the National Technical Committee for Standardization of Non-destructive Testing (SAC/TC56).

This document was drafted by: Shanghai Jinyi Testing Technology Co., Ltd., Shanghai Materials Research Institute Co., Ltd., Hefei Public Security Technology Research Institute Institute, Baoshan Iron & Steel Co., Ltd., Jiangsu University of Science and Technology, Guangdong Xike Intelligent Technology Co., Ltd., Hudong Heavy Machinery Co., Ltd., Baowu Special Metallurgical Co., Ltd., Ningbo Yongchuang Testing Technology Co., Ltd., Ma'anshan Iron and Steel Co., Ltd., Shanghai University of Technology, and Anhui University of Technology.

The main drafters of this document are: Shen Yanwen, Song Yimin, Jiang Jiansheng, Liu Xiaonan, Zhou Changzhong, Zuo Hongzhi, Luo Yundong, Liu Bingxia, Chen Yun, Zhou Hui, Jiang Yimin, Zhang Xiaolong, Wu Longsheng, Cai Rui, Hua Yunsong, Huang Sanao, Nie Jianhua, Chen Jie, Song Huanan, Ding Xiaoying, Guo Hua, and Han Lina.

Non-destructive testing of long products - Visual inspection methods

1 Scope

This document describes the basic principles of vision inspection of long products using line laser profilometry and specifies the general principles of the vision inspection method.

Requirements, testing procedures, test records and test reports.

This document is applicable to metal bars, pipes, wires and long products with diameter not less than 12mm and silver, black skin or sand peeling surface.

Visual inspection of external surface for open defects, pits and deformation. Long products with other cross-sectional shapes shall be subject to the same procedures.

Note. The line laser profile measurement method is to obtain the three-dimensional profile information of the object surface by emitting a laser beam and receiving the light reflected from the object surface, and then use the image to measure the three-dimensional profile of the object surface.

A method for high-precision measurement of object size, form and position tolerances, and surface defects using image and point cloud processing technology.

2 Normative references

GB/T 12604.14

3 Terms and Definitions

The terms and definitions defined in GB/T 12604.14 and the following apply to this document.