high carbon steel surface treatment process for ballistically resistance steel and its product

摘要

"PROCESS FOR HIGH CARBON SURFACE TREATMENT FOR BALLISTIC RESISTANCE ACTION AND ITS PRODUCT". The present invention relates a process for surface treatment of high carbon steel to ballistic resistance steel and its product using hot rolled ACE P570L steel sheets in steps of preparing, cleaning and tying ACE 570L steel sheets for dipping in the VK furnace. open, where preheating of 350 198 C to 450 198 C, the above-mentioned VK furnace for burning oil for 30 to 60 minutes, the steel now undergoes a GS660 salt bath heating -R3 in the TO furnace at a temperature of 8000 198 C to 890 198 C, the next step in treating ACE 570L steel consists of martemporal cooling in the cooling furnace at a temperature of 140 198 C to 80 198 C with molten salt AS 140. Next, the steel plate 570L undergoes several hot jet washes to remove debris, then an FCA oven coating occurs at 300, 198 C to 350 198 C 1 3 hours and a pickling takes place to remove the salt from the heating bath, additionally the oil a protective oil and anti-corrosive dewatering for protection. In the next step the steel sheets are untied and prepared for hardness quality sampling testing.