Mangaki ama-surface coating we-HSS drill bit? futhi yikuphi okungcono?

Izingcezu zokubhoboza zensimbi enesivinini esikhulu (i-HSS) zivame ukuba nezimbotshana ezihlukene ezidizayinelwe ukuthuthukisa ukusebenza kwazo nokuqina. Izembatho ezivame kakhulu ezingaphezulu kwezinsimbi zokumba insimbi enesivinini esikhulu zihlanganisa:

1. I-Black Oxide Coating: Lokhu kunamathela kunikeza izinga elithile lokumelana nokugqwala futhi kusiza ukunciphisa ukungqubuzana ngesikhathi sokumba. Kuyasiza futhi ukugcina okokugcoba endaweni yokubhoboza. Izingcezu zokubhoboza ezine-oksidi emnyama zifanele ukubhoboza inhloso evamile ezintweni ezifana nokhuni, ipulasitiki nensimbi.

2. I-Titanium Nitride (TiN) Coating: I-TiN enamathelayo inyusa ukumelana nokuguga futhi isiza ukunciphisa ukungqubuzana, ngaleyo ndlela inwebe impilo yamathuluzi futhi ithuthukise ukusebenza kwezinhlelo zokusebenza zokumba ezisezingeni eliphezulu. Izingcezu zokubhoboza ezifakwe i-TiN zilungele ukubhola izinto eziqinile njengensimbi engagqwali, insimbi ewugqinsi, ne-titanium.

3. I-Titanium carbonitride (i-TiCN) i-coating: Uma iqhathaniswa ne-TiN coating, i-TiCN yokugqoka inokumelana nokugqoka okuphezulu nokumelana nokushisa. Ilungele ukumba ama-abrasives kanye nezinto ezisezingeni eliphezulu zokushisa ukuze kuthuthukiswe impilo yamathuluzi nokusebenza kwezicelo zokumba ezifunayo.

4. I-Titanium aluminium nitride (TiAlN) yokugqoka: I-TiAlN yokugqoka inezinga eliphakeme kakhulu lokumelana nokugqoka kanye nokumelana nokushisa phakathi kwezingubo ezingenhla. Ifanele ukubhoboza izinsimbi eziqinile, ama-alloys asezingeni eliphezulu nezinye izinto eziyinselele ukuze kunwetshwe ukuphila kwamathuluzi nokuthuthukisa ukusebenza kwezimo ezinzima zokumba.

Iyiphi i-coating engcono kakhulu incike ekusetshenzisweni okuqondile kokubhoboza kanye nezinto ezibolwayo. I-coating ngayinye inikeza izinzuzo eziyingqayizivele futhi yenzelwe izinhlobo ezahlukene zezinto kanye nezimo zokumba. Ngenhloso evamile ukubhola ezintweni ezivamile, i-black oxide coated drill bit ingase yanele. Kodwa-ke, ngezinhlelo zokusebenza ezinzima kakhulu ezibandakanya izinto eziqinile noma ezisezingeni lokushisa eliphezulu,I-TiN, TiCN noma i-TiAlN coated drill bits ingase ifaneleke ngenxa yokuguga okuthuthukisiwe nokumelana nokushisa.