Ho thoe’ng ka ts’ebetso ea maqhubu a futhumatsang a maqhubu a mahareng a thatafatsang?

1.Bothata ba bokaholimo: Ho thatafala hoa bokaholimo ba mesebetsi e koaloang ke ho futhumatsa le ho maqhubu a maqhubu a maqhubu hangata ho na le li-unit tse 2 ho isa ho tse 3 (HRC) tse phahameng ho feta ho tima ka mokhoa o tloaelehileng.

2.Pha ho hanyetsa: Khanyetso ea ho roala ea workpiece kamora ho tima hangata e phahameng ho feta ea ho tima ho tloaelehileng. Sena se bakoa haholo ke ho kopanngoa ha lithollo tse nyane tsa martensite lera le thatafetseng, ho hasana ha carbide e phahameng, thatafalo e phahameng le khatello e phahameng ea khatello ea metsi.

3. Matla a mokhathala: Ho tima leqhubu le phahameng le le mahareng ho ntlafatsa haholo mokhathala le ho fokotsa kutloisiso ea notch. Bakeng sa tšebetso ea thepa e ts’oanang, botebo ba lera le thatafalitsoeng bo kahara moeli o itseng. Ha botebo ba lera le thatafalitsoeng bo ntse bo eketseha, matla a mokhathala a ea eketseha, empa ha botebo ba lera le thatafalitsoeng bo tebile haholo, bokaholimo boa hatella, kahoo matla a mokhathala a fokotseha ha botebo ba lera le thatafetseng bo eketseha. Brittleness e eketsehileng. Ka kakaretso botebo ba lera le thatafalitsoeng ke δ = (10 ～ 20)% D. E loketseng haholoanyane, moo D. Na bophara ba eona bo sebetsang bo sebetsang