Quality control flow
Incoming inspection----->semi-product inspection----->finished product inspection
1.incoming inspection:metallographic analysis with Spectroscope.
2.Semi-product inspection
Casting workshop:checking the size&appearance of product
Forging workshop:checking the size according to drawing
Sanding workshop:checking the appearance
Heat treat workshop:checking the hardness
CNC workshop:checking the size,appearance and geometric tolerance
3.Finished product inspection
100% Leaking test
Burst pressure test
Compress test
Fatigue test
Methods of quality control
Worker self-checking
QC engineer checking
Third part testing
Devices of quality control
Certificates