I-carbide esimende ibhekisela ezintweni ezenziwe nge-alloy eyenziwe nge-refractory metal compound njenge-matrix kanye ne-transition metal njenge-binder phase, bese kwenziwa ngendlela ye-powder metallurgy. Isetshenziswa kabanzi ezimotweni, kwezokwelapha, kwezempi, kwezokuvikela izwe, ezindiza, ezindizeni nakwezinye izindawo. . Kuyafaneleka ukuqaphela ukuthi ngenxa yezinhlobo ezahlukene kanye nokuqukethwe kwama-carbide ensimbi esimende kanye nama-binder, izakhiwo zomzimba nezamakhemikhali zama-carbide esimende alungisiwe nazo zihlukile, futhi izakhiwo zawo zemishini nezomzimba zincike kakhulu ohlotsheni lwe-carbide yensimbi. Ngokusho kwezingxenye eziyinhloko ezahlukene, i-carbide esimende ingahlukaniswa ibe yi-YT kanye ne-YG cemented carbide.
Ngokombono wencazelo, i-carbide eqinisiwe yohlobo lwe-YT ibhekisela ku-carbide eqinisiwe yohlobo lwe-tungsten-titanium-cobalt, izingxenye eziyinhloko yi-tungsten carbide, i-titanium carbide kanye ne-cobalt, kanti igama lomkhiqizo yi-“YT” (“i-hard, titanium” amagama amabili isiqalo se-Chinese Pinyin). Yakhiwa okuqukethwe okumaphakathi kwe-titanium carbide, njenge-YT15, okusho ukuthi okuqukethwe okumaphakathi kwe-titanium carbide kungu-15%, kanti okunye kuyi-carbide eqinisiwe enokuqukethwe kwe-tungsten carbide kanye ne-cobalt. I-carbide eqinisiwe yohlobo lwe-YG ibhekisela ku-carbide eqinisiwe yohlobo lwe-tungsten-cobalt. Izingxenye eziyinhloko yi-tungsten carbide kanye ne-cobalt. Isibonelo, i-YG6 ibhekisela ku-carbide eqinisiwe yohlobo lwe-tungsten-cobalt enokuqukethwe kwe-cobalt okumaphakathi okungu-6% kanti okunye kuyi-tungsten carbide.
Ngokombono wokusebenza, ama-carbide aqiniswe nge-YT kanye ne-YG anokusebenza okuhle kokugaya, amandla okugoba kanye nokuqina. Kufanele kuqashelwe ukuthi ukumelana nokuguguleka kanye nokuqhuba ukushisa kwe-carbide eqiniswe nge-YT kanye ne-carbide eqiniswe nge-YG kuphambene. Eyokuqala inokumelana nokuguguleka okungcono kanye nokuqhuba ukushisa okubi, kanti eyesibili inokumelana nokuguguleka okubi kanye nokuqhuba ukushisa. ilungile. Ngokombono wokusetshenziswa, i-carbide eqiniswe nge-YT ifanelekela ukujika okungajwayelekile, ukuplaning okungajwayelekile, ukuqeda okuncane, ukugaya okungajwayelekile kanye nokubhoboza ubuso obungaguquki lapho ingxenye engalingani yensimbi yekhabhoni kanye nensimbi ye-alloy isikwa ngezikhathi ezithile; i-alloy eqinile yohlobo lwe-YG Ifanelekela ukujika okungajwayelekile ekusikeni okuqhubekayo kwensimbi ephothiwe, izinsimbi ezingezona i-ferrous kanye ne-alloys yazo nezinto ezingezona i-metallic, ukuqeda okuncane kanye nokuqeda ekusikeni okungajwayelekile.
Kunamazwe angaphezu kwama-50 emhlabeni akhiqiza i-carbide esimende, enomkhiqizo ophelele ongama-27,000-28,000t-. Abakhiqizi abakhulu yi-United States, iRussia, iSweden, iShayina, iJalimane, iJapan, i-United Kingdom, iFrance, njll. Imakethe ye-carbide esimende yomhlaba wonke igcwele kakhulu. , umncintiswano wemakethe unamandla kakhulu. Imboni ye-carbide esimende yaseShayina yaqala ukubonakala ngasekupheleni kwawo-1950. Kusukela ngawo-1960 kuya kuma-1970, imboni ye-carbide esimende yaseShayina yathuthuka ngokushesha. Ekuqaleni kwawo-1990, umthamo wokukhiqiza ophelele we-carbide esimende yaseShayina wafinyelela kuma-6000t, kanti umkhiqizo ophelele we-carbide esimende wafinyelela kuma-5000t, owesibili kuphela eRussia nase-United States, ubekwe endaweni yesithathu emhlabeni.
Isikhathi sokuthunyelwe: Ephreli-19-2022
