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basic introduction

ZRLK testing non-destructive testing center is a domestic professional third-party non-destructive testing organization for steel structure engineering (construction, power plants, etc.), boilers, pressure vessels, pipelines, bridges, wind power, thermoelectric engineering ships and offshore facilities, motor vehicles, lifting machinery, Towers, amusement facilities and many other industries provide comprehensive non-destructive testing system solutions.

Testing service

Non-destructive testing of steel structure welds

Non-destructive testing of steel structure engineering has been widely used in various industries today. Welding seam, as one of the most extensive basic ways to connect steel structural members, to achieve the core of the steel structure large span, beautiful appearance and superior performance has become an important link to ensure the quality of steel structure engineering. Its good quality is directly related to the safety of the entire steel structure project.

Billboard detection

Billboard safety inspection, landing billboards, anti-aircraft billboards, single-post billboards, wall billboards, roof billboard detection, highway billboard detection, highway billboard detection, toll booth billboards and other fields.

Boiler non-destructive testing

Boiler non-destructive testing occupies a very important position in boiler inspection. It can detect various defects on the surface and inside of boiler components and their welded joints. Under normal circumstances, these defects are difficult or undetectable by conventional inspection methods. Commonly used nondestructive testing methods include radiographic testing, ultrasonic testing, magnetic particle testing, and penetration testing. Some unconventional detection methods such as acoustic emission detection and eddy current.

Non-destructive testing of special equipment

Special equipment testing includes: refers to the life-threatening, dangerous boilers, pressure vessels (including gas cylinders, the same below), pressure pipes, lifting machinery, large-scale amusement facilities. Among them, boilers, pressure vessels (including gas cylinders) and pressure pipes are pressure-bearing special equipment; hoisting machinery and large-scale amusement facilities are electromechanical special equipment.

Ship non-destructive testing

Non-destructive testing of hull and cabin, non-destructive testing of rudder and propeller, non-destructive testing of internal pipelines, non-destructive testing of marine products and thickness measurement of hull.

Non-destructive testing and thickness measurement of forging castings

Non-destructive testing and thickness measurement of castings and forgings, including plates, bars, pipes, bolts, screws, etc.

Test items

Ultrasonic Testing (abbreviated UT);

Radiographic Testing (abbreviated RT);

Magnetic particle testing (abbreviated MT);

Penetrant Testing (abbreviated PT);

Eddy Current Testing (abbreviated ET);

(1) The quality inspection of the outer surface of the pipe material of the pressure pipeline inspection.

(2) Inspection of the surface and internal defects of important butt welds in pressure pipeline inspection.

(3) Inspection of the surface and internal defects of important fillet welds in pressure pipelines.

(4) Pressure pipeline inspection. Inspection of the welded joint surface and internal defects of important socket welding and bridging tee branch pipes.

(5) Pressure pipeline inspection Surface defects inspection after pipe bending.

(6) Bevel detection of welded joints of pressure pipeline testing materials with large tendency to quench.

(7) Testing of pressure pipelines with non-austenitic stainless steel pipe grooves whose design temperature is lower than or equal to minus 29 degrees Celsius.

(8) Pressure pipeline inspection. Welding seam of double-sided weldments is required to be cleaned after root cleaning.

(9) Pressure pipeline inspection When oxyacetylene flame is used to cut welding fixtures on alloy pipes that have a tendency to harden, the defects of the repaired parts are detected.

Testing standards

Nondestructive testing standards   for castings and forgings:

Ship non-destructive testing standards:

Non-destructive testing standards   for special equipment:

GB 50205-2001 "Code for   Construction Quality Acceptance of Steel Structure Engineering"

GB/T 3323-2005 "Radiation   photography of metal fusion welding joints"

GB 11345-89 "Manual ultrasonic   flaw detection method and quality classification method for steel welds"

CB-T 3558-2011 "Ship Steel   Weld Seam Radiographic Testing Process and Quality Classification"

CB-T 3559-2011 "Marine Steel   Welding Ultrasonic Testing Process and Quality Classification"

CB-T 3580-1994 "Technical   Requirements for Thickness Repair and Repair of Hull Steel Plates and   Components"

CB-T 3958-2004 "Technology and   Quality Classification of Magnetic Particle Inspection, Penetration   Inspection for Ship Steel Welds"

GB-T 11345-2013   "Nondestructive Testing of Welding Seam Ultrasonic Testing Technology,   Testing Level and Evaluation"

JB/T4730-2005 "Nondestructive   Testing of Pressure Equipment"

Test basis: "Special Equipment   Safety Law"

Our advantage

1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.


Online consultation

Online consultation

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Metal non-destructive testing

ZRLK testing non-destructive testing center is a domestic professional third-party non-destructive testing organization for steel structure engineering (construction, power plants, etc.), boilers, pressure vessels, pipelines, bridges, wind power, thermoelectric engineering ships and offshore facilities, motor vehicles, lifting machinery, Towers, amusement facilities and many other industries provide comprehensive non-destructive testing system solutions.

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