Lintho tse peli tsa bohlokoa tse tala tsa PDC Cutters

PDC cutter ke mofuta oa thepa e thata haholo e kopanyang daemane ea polycrystalline e nang le tungsten carbide substrate ka mocheso o phahameng haholo le khatello.

PDC Cutter e qapiloe pele ke General Electric (GE) ho 1971. Li-PDC Cutters tsa pele tsa indasteri ea oli le khase li entsoe ka 1973 'me ka mor'a lilemo tsa 3 tsa liteko le liteko tsa masimo, li pakoa hore li sebetsa hantle haholo ho feta liketso tse sithabetsang tsa carbide. li-button bits kahoo li hlahisoa khoebong ka 1976.

PDC Cutters e entsoe ka tungsten carbide substrate le synthetic diamond grit. Taemane le carbide substrate li hola hammoho ka litlamo tsa lik'hemik'hale tlas'a maemo a phahameng a mocheso le khatello e phahameng.

Lisebelisoa tsa bohlokoa ka ho fetisisa tsa li-cutters tsa PDC ke grit ea daemane le substrate ea carbide.

1. Lehlohlojane la taemane

Diamond grit ke sesebelisoa sa bohlokoa bakeng sa li-cutters tsa PDC. Mabapi le lik'hemik'hale le thepa, taemane e entsoeng ke motho e tšoana le taemane ea tlhaho. Ho etsa grit ea daemane ho kenyelletsa ts'ebetso e bonolo ea lik'hemik'hale: k'habone e tloaelehileng e futhumatsoa tlas'a khatello e phahameng haholo le mocheso. Leha ho le joalo, ha e le hantle, ho etsa taemane ha ho bonolo.

Leha ho le joalo, grit ea daemane ha e tsitsitse mochesong o phahameng ho feta taemane ea tlhaho. Hobane metallic catalyst e qabeletsoe ka har'a sebopeho sa grit e na le sekhahla se phahameng sa katoloso ea mocheso ho feta daemane, katoloso e fapaneng e beha libonto tsa daemane ho isa ho taemane tlas'a sekuti, 'me haeba meroalo e phahame ka ho lekana, e baka ho hloleha ha litlamo. Haeba litlamo li hlōleha, litaemane li lahleheloa ka potlako, kahoo PDC e lahleheloa ke boima ba eona le bohale ba eona 'me e fetoha e sa sebetseng. Ho thibela ho hloleha ho joalo, li-cutters tsa PDC li tlameha ho pholile ka ho lekaneng nakong ea ho cheka.

2. Carbide substrate

Carbide substrate e entsoe ka tungsten carbide. Tungsten carbide (molemo oa lik'hemik'hale: WC) ke motsoako oa lik'hemik'hale o nang le tungsten le liathomo tsa carbon. Mofuta oa mantlha oa tungsten carbide ke phofshoana e bohlooho bo botala, empa e ka hatelloa le ho etsoa libopeho ka ho tobetsa le ho siling.

Tungsten carbide e sebelisoa haholo merafong likotong tsa ho cheka hamore hamore, lihamore tsa fatše, li-roller-cutters, lichesele tsa mohoma oa longwall, li-shearer picks, ho phahamisa li-reamer tse tenang le metjhini e tenang.

Zzbetter e na le taolo e thata bakeng sa thepa e tala ea grit ea daemane le substrate ea carbide. Bakeng sa ho cheka sebaka sa oli sa PDC cutter, re sebelisa daemane e tsoang kantle ho naha. Re boetse re tlameha ho e pshatla le ho e bōpa hape, ho etsa hore boholo ba likaroloana bo tšoane. Re boetse re hloka ho hloekisa thepa ea daemane. Re sebelisa Laser Particle Size Analyzer ho sekaseka kabo ea boholo ba likaroloana, bohloeki le boholo ba beche ka 'ngoe ea phofo ea daemane. Re sebelisa li-powders tsa boleng bo holimo tse nang le limaraka tse loketseng ho hlahisa li-tungsten carbide substrates.

Ho Zzbetter, re ka fana ka mefuta e mengata e fapaneng ea li-cutters tse ikhethileng.

Ikopanye le nna bakeng sa tse ling.Email:irene@zzbetter.com

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