QUALITY
ASSURANCE
In terms of testing, the company is also equipped with advanced testing equipment to establish a physical and chemical center, online and Offline automatic eddy current testing, hydraulic testing, underwater air tightness testing, salt spray testing machine, universal tensile testing machine, hardness meter, CS analyzer, metallographic microscope, portable direct reading spectroscopy, roughness detector, intergranular corrosion device, etc.
Yongxin focuses on the production of stainless steel welded pipes.
Flattening Test
Put the sample in the press，evenly press to the specified flattening distance, check whether there are cracks and fractures in the bending deformation of the sample.
Universal testing machine
Non Destructive Test
Using the principle of electromagnetic induction, detect whether there are pores or cracks inside the welded pipe.
On-line eddy current flaw detection
On-line eddy current flaw detection
Chemical Analysis
Doing chemical analysis for the raw material and adding material of the welding pipe, making sure it comply with standard.
Automatic carbon and sulfur analyzer
Corrosion Test
The experiment is to simulate the performance of metal materials in high temperature and high pressure corrosion environment, and the intergranular corrosion resistance of welded pipes can be evaluated, so as to ensure their safety.
Intergranular corrosion
Salt spray tester
Flanging Test
Turn the outer edge of the sample into an erection along a certain curve to test the welding strength and sealing of the welded pipe.
Universal testing machine
Hydrostatic Test
Under the specified water pressure value and a certain time, check whether there will be leakage in the pressure welded pipe.
Airtight testing machine
Flaring Test
Press the top core with a certain taper into one end of the metal tube specimen，evenly expand to the specified flaring rate, check whether there are cracks or other defects at the flaring.
Universal testing machine
Other Test
Determine the yield strength and tensile strength of the sample, and the deformation ability of the specified bending degree, which provides a basis for testing the mechanical and process properties of the welded pipe.
Rockwell hardness tester
Rockwell hardness tester
Rockwell hardness tester
