Inqubo ye-Sintering ye-Tungsten Carbide
Inqubo ye-Sintering ye-Tungsten Carbide
Inqubo ye-sintering ingesinye sezinyathelo ezidingekayo ekukhiqizeni imikhiqizo ye-tungsten carbide. Ngokohlelo lwe-sintering, inqubo ye-sintering ingahlukaniswa ngezigaba ezine eziyisisekelo. Ake sikhulume ngalezi zinyathelo ezine ngokuningiliziwe futhi uzokwazi okwengeziwe ngenqubo ye-sintering ye-tungsten carbide.
1. Ukususwa Kwe-ejenti Yokwakha kanye nesiteji se-Burn-In
Ngenxa yokukhuphuka kwezinga lokushisa, umswakama, igesi, notshwala obusele endaweni eyomile yokufuthwa kuzomuncwa impushana noma i-ejenti yokubumba kuze kushibilike.
Ukwenyuka kwezinga lokushisa kuzoholela ekwakhekeni kwama-ejenti kancane kancane noma ukuhwamuka. Khona-ke i-ejenti yokwakha izokwandisa okuqukethwe kwekhabhoni emzimbeni we-sintered. Amanani wokuqukethwe kwekhabhoni ayahluka ngomehluko ku-ejenti yokwakha yezinqubo ezahlukene ze-sintering.
Ezingeni lokushisa elishisayo, ukuncishiswa kwe-hydrogen kwe-cobalt ne-tungsten oxide akuphenduli ngokuqinile uma i-vacuum iyancipha futhi i-sintering.
Ngokukhuphuka kwezinga lokushisa kanye ne-annealing, ukucindezeleka kokuxhumana kwe-powder kuyaqedwa kancane kancane.
Impushana yensimbi eboshiwe iqala ukululama futhi iphinde ikhanye. Njengoba ukusakazeka komhlaba kwenzeka, amandla okucindezela ayanda. Ukuncipha kosayizi webhulokhi kubuthakathaka futhi kungacutshungulwa njenge-plasticizer engenalutho.
2. Solid State Sintering Stage
Umzimba we-sintered uzoncipha ngokusobala esigabeni sokuqina se-sintering. Kulesi sigaba, ukusabela okuqinile, ukusakazeka, nokugeleza kwepulasitiki kuyanda, futhi umzimba we-sintered uzofinyela.
3. I-Liquid Sintering Stage
Uma umzimba we-sintered ubonakala uyisigaba se-liquid, ukushwabana kuqedwa ngokushesha. Khona-ke isakhiwo esiyisisekelo se-alloy sizokwakhiwa ngaphansi kwenguquko ye-crystalline. Lapho izinga lokushisa lifinyelela izinga lokushisa le-eutectic, ukuncibilika kwe-WC ku-Co kungafinyelela cishe ku-10%. Ngenxa yokucindezeleka okungaphezulu kwesigaba se-liquid, izinhlayiya ze-powder zivaliwe komunye nomunye. Ngakho-ke, isigaba samanzi kancane kancane sagcwalisa ama-pores ezinhlayiyeni. Futhi ukuminyana kwe-block kukhula kakhulu.
4. Isiteji sokupholisa
Esigabeni sokugcina, izinga lokushisa lizokwehla liye ekamelweni lokushisa. Isigaba soketshezi sizoqina njengoba izinga lokushisa lehla. Ukuma kokugcina kwe-alloy kulungisiwe. Kulesi sigaba, i-microstructure kanye nokwakheka kwesigaba se-alloy kushintsha nezimo zokupholisa. Ukuze kuthuthukiswe izakhiwo ze-alloys zomzimba nezomshini, lesi sici se-alloy singasetshenziswa ukushisisa i-carbide enosimende.
Uma unentshisekelo emikhiqizweni ye-tungsten carbide futhi ufuna ulwazi olwengeziwe nemininingwane, UNGATHI XHUMANA NATHI ngocingo noma ngemeyili kwesokunxele, noma SITHUMELE IMEYILI ezansi nekhasi.
