Izici Eziyinhloko Ze-Cemented Carbide

I-carbide enosimende iyingxubevange eyenziwe ngenhlanganisela eqinile yensimbi ephikisayo kanye nensimbi ye-matrix ngokusebenzisa inqubo ye-powder metallurgy. Ngoba izithako eziqukethwe ku-powder metallurgy kanye nendlela yokulungiselela zihlukile. Izici ze-carbide enosimende zihlukile. Ake sixoxe ngezici eziyinhloko ze-carbide enosimende kulesi sihloko.

1. Akukho ukuqondiswa ku-carbide enosimende. I-carbide enosimende yenziwe nge-powder pressure sintering. Ngenxa yokuthi inqubo yokulingisa ayisetshenziswa, awukho umehluko ekumineni phakathi kongqimba olungaphezulu nokwakheka kwangaphakathi, ngaleyo ndlela kuqedwe umehluko wendawo wokusebenza komshini ongabangelwa umehluko wokuminyana.

2. I-carbide enosimende ayinayo inkinga yokwelapha ukushisa. Umsebenzi wemishini we-carbide enosimende awushintshi ngokushisa nokupholisa, kuthonywa kuphela ukucindezeleka okushisayo ngesikhathi sokushisa noma ukupholisa. Ngakho-ke, ukucutshungulwa kwangaphambili kwe-carbide enosimende kufanele kwenziwe ngaphambi kwenqubo yokucwilisa. Ngemuva kokucwenga, ingacubungula kuphela ngamathuluzi edayimane. Umsebenzi wemishini we-carbide enosimende unqunywa ngokuyinhloko inani le-cobalt kanye nosayizi wezinhlayiyana ze-tungsten carbide.

3. Isilinganiso se-Poisson se-carbide enosimende singu-0.21~0.24. Ngakho-ke, ububanzi bangaphakathi besikhunta se-carbide esine-cemented bunoshintsho oluncane kakhulu kunesikhunta sensimbi ngaphansi kwesenzo sokucubungula ukucindezeleka. Ngakho-ke, ubukhulu bomkhiqizo we-carbide osikiwe busondelene kakhulu nobukhulu besikhunta.

4. I-Carbide inamandla amakhulu okucindezela. Okuqukethwe kwe-cobalt kunganquma amandla okucindezela. Amandla acindezelayo emikhiqizo ye-carbide enosimende ene-cobalt ephansi angafinyelela ngaphezu kuka-6000Mpa, okuyinsimbi cishe kabili.

5. I-carbide enosimende ine-coefficient ephansi yokwandisa okushisayo. Abantu kufanele bacabangele leli phuzu ekwakhiweni nasekukhiqizeni isikhunta se-carbide.

6. High conductivity ezishisayo. I-thermal conductivity ye-carbide enosimende iphakeme ngokuphindwe kathathu kunensimbi engagqwali.

7. Ukuguqulwa kwe-elastic kanye ne-plastic deformation ye-carbide enosimende kuncane.

8. Isici esidume kakhulu se-carbide enosimende ukuqina kwayo okuphezulu nokumelana nokugqoka okuphezulu. Isikhathi sokusebenzisa i-tungsten carbide side kunensimbi engagqwali.

Njengamanje, ama-carbides anosimende asetshenziswa ekubunjweni kwasekhaya akhiwa ikakhulukazi i-tungsten ne-cobalt.