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---Heat treatment
Heat treatment divide into Conventional Heat Treatment and Surface Heat Treatment.
Conventional Heat Treatment include anneal,normalizing,quenching, tempering.
Surface Heat Treatment include surface hardening and chemical heat treatment.
---Test
1,NDT (Non-destructive testing)
1)Ultrasonic Testing(UT)
2)TOFD{radiographic inspection,UT(ultrasonic testing),magnetic particle testing,penetrant inspection,TOFD}
2.performance test
3.metallographic analysis
4.Coating inspection
5.stress test
---Galvanization
Galvanized steel-Ordinary carbon construction steel after galvanized processing can effectively prevent the steel corrosion rust so as to prolong the service life of steel.
Galvanized steel Process:
pickling - clean-soak steel in the mixed liquor of zinc chloride and ammonia chloride-drying-hot galvanizing-cooling-polishing-the inspection and test on about coating
---Pre-treatment: Pre-treatment for Shipbuilding steel (ball blasting, derusting,painting).
---Cutting:NC flame cutting,Laser cutting,line cutting,Shearing machine cutting,water cutting
 

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