1.Chikamu Chikuru cheCemented Carbide
Cemented carbide yakagadzirwa nehurefu-kuoma, refractory simbi carbide (WC, TiC) micron poda sechinhu chikuru, ine cobalt (Co), nickel (Ni), uye molybdenum (Mo) seanosungira. Inogona kushandiswa muchoto chevacuum kana hydrogen Powder metallurgy zvigadzirwa zvakasiirwa muchoto chekudzikisa.
Semuyenzaniso:

2.The Compose of the substrates of cemented carbide
Iyo substrates yecemented carbide inoumbwa nezvikamu zviviri: chikamu chimwe chikamu chekuomesa, uye chimwe chikamu isimbi yekubatanidza.
Chikamu chakaomeswa ndeye carbide yekuchinja simbi muperiodic tafura, senge tungsten carbide, titanium carbide, uye tantalum carbide. Kuoma kwadzo kwakakwira zvakanyanya, uye nzvimbo dzadzo dzekunyungudika dziri pamusoro pe2000°C, uye dzimwe dzinotodarika 4000°C. Pamusoro pezvo, shanduko yesimbi nitrides, borides, uye silicides zvine hunhu hwakafanana uye inogona zvakare kuita sematanho ekuomesa mune simende carbide. Kuvapo kwechikamu chekuomesera kunotemesa kuti alloy ine yakanyanya kuomarara uye nekupfeka kuramba.
Iyo yekubatanidza simbi inowanzo simbi yeboka resimbi, uye cobalt uye nickel zvinowanzoshandiswa.

3.Kushanda sei chikamu chimwe nechimwe mukugadzira
Paunenge uchigadzira simende carbide, saizi yehupfu hwehupfu hwakasarudzwa nefekitari yakasimwa yecarbide iri pakati pe1 ne2 microns, uye kuchena kwakanyanya. Iyo mbishi inosanganiswa zvinoenderana neyakatsanangurwa kuumbwa reshiyo, uye doro kana imwe svikiro inowedzerwa kune yakanyorova ichikuya munyoro yebhora guyo kuti iite yakanyatsosanganiswa uye yakapwanyika. Mushure mekuomeswa nekusefa, mugadziri wekuumba wax kana glue inowedzerwa. Musanganiswa unowanikwa nekusefa. Zvadaro, apo musanganiswa wacho wakaitwa granulated uye wakatsikirirwa, uye unopisa kuti uswedere pedyo nekunyunguduka kwesimbi inosungirirwa (1300-1500 ° C), chikamu chakaoma uye binder metal ichaita eutectic alloy. Mushure mekutonhora, chikamu chakaomeswa chinogoverwa mugridi inoumbwa nesimbi yekubatanidza, uye yakanyatsobatanidzwa kune imwe neimwe kuti iite yakasimba yakazara. Kuomarara kwecemented carbide kunoenderana nekuomarara kwechikamu uye saizi yezviyo, ndiko kuti, kukwirisa kwechikamu chakaomeswa uye nekunakisa zviyo, ndiko kukura kuoma. Kuoma kwesimende carbide kunotsanangurwa nesimbi yechisungo. Iyo yakakwirira yemukati yesimbi yechisungo, iyo yakakura simba rekukotama.