Non-destructive testing in the role of spiral welded pipe production

Nondestructive testing technology, also known as non-destructive testing techniques. It is the use of certain physical properties of the substance or group defective structure bound to the differential changes in physical phenomenon, without damage, the detected object does not damage the performance and shape of the premise, by measuring these changes understanding and evaluation of plant material to be detected, the nature of products and equipment components, status, quality, or internal structure of a particular detection technique.

In a small spiral steel pipe production process, the role of non-destructive testing are two points; First, raw materials, semi-finished products, rife provides continuous, real-time process quality control, especially spiral pipe welding quality control and production process quality (such as heat treatment, expansion diameter, flat head and hydrostatic test or defects caused by the expansion of the original defect), timely detection of primitive and production processes of various defects and this appears to be controlled to prevent does not meet the quality requirements of raw materials / semi-finished products into the next process ; Second, Liu pipe small defects accurate qualitative and quantitative and positioning, thus providing guidance disposed of; three are based on the acceptance of non-standard vague to the production of spiral welded pipe for quality grading, to meet different customer needs. Yuan right detection technology allows us the safest and most economical way to health and the use of wide spiral welded pipe products.

In the field of nondestructive testing technology has been able to force the effective application of non-destructive testing "France has reached many dozens in the spiral welded pipe manufacturing field, the most common non-destructive methods for the detection of food: ray inspection (only T), ultrasonic testing (uT ), penetrant testing (FP), eddy current testing, magnetic particle testing (MT), etc. This is also the first developed Chia conventional detection methods.