◇ Chemical analysis laborotary
Chemical analysis laboroary | Apparatus for measuring carbon and sulfur |
◇ Material chemical composition inspection
German Spectro Portable Direct-reading Spectrometer. It is mainly used for material chemical composition inspection. |
Testing Center will inspect chemical composition ,microstructure and macrostructure for each batch of material, in order to control the mater ial quality. |
◇ Metallographic Analysis Laboratory
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| Metallographic Analysis Laboratory | Metallurgical Microscope |
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| Hardness Inspection Room | Metallurgical Microscope |
◇ Hardness tester
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| Rockwell Hardness Tester,which is used to inspect surface hardness for rings after quenching and tempering | Brinell hardness tester,which is used to inspect rings hardness after spheroidizing annealing |
◇ Inspect the microstructure
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Chua's metallurgical microscope，which is used to inspect the microstructure for material after heat treatment | icker's hardness tester,which is used to inspect rings' shallow layer hardness，the depth of carburized layer and gradient hardness test |
◇ Digital Ultrasonic Detector，which is used to inspect whether there is flaw or defect in the core of the material, and confirm the defect dimension and position.
◇ Measurement room has 500,1000 and 2000mm Length measuring instrument ,profilometer, roughness inspection instrument, angle measuring instrument and many other advanced testing devices.
Raw Material Certificate of Quality
WBJF inspect the material according to GB/T18254-2002 standard
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| Material Macrostructure Inspection Room | Material Chemical Composition Inspection |
1.Cold process control: Control the quality according to Process inspection guidance and Processing intruction
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| Processing instruction | Initial workpiece inspection |
2.Heat treatment inspection
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| Hardness inspection preparation | Metallurgical structure inspection |
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| Hardness inspection | Ovality inspection |
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| 100% Magnetic Particle Inspection | MPI inspection report |
3.Components washing before final inspection
Outsourced components inspection
◇ Cage insepction
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| Cage insepction | Brass cage |
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| Nodular cast iron cage | Pressed steel cage |
◇ Roller insepction
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| Roller hardness inspection | Roller dimension and tolerance inspection |
◇ Roller dimension and tolerance inspection
