Kuphando kunye nophuhliso lweemveliso ze-carbide, sihlala sithatha "ukugcina ezinye iimpawu ze-carbide enesamente kunye nokuphucula ukuqina kwayo kangangoko sinakho" njengenjongo yophando, ukuze sifumane ukusebenza okungcono.

Njengezinto zetsimbi, ukuqina kwe-carbide ene-cemented kungabonakaliswa malunga nokuqina kwempembelelo kunye nokuqina kwe-fracture. Kukho ubudlelwane bomgca phakathi kokuqina kwempembelelo kunye namandla okuguquguquka kwe-carbide enesamente. Izinto ezigqiba amandla e-flexural ye-alloy nazo zichaphazela kakhulu ukuqina kwempembelelo ye-alloy. Ukuqina kwempembelelo ye-alloy kuchaphazeleka nezinye izinto.

Ukuqina kwempembelelo kukukwazi kwemathiriyeli ukuxhathisa ukusilela phantsi komthwalo wempembelelo. Iziphene zangaphakathi kwii-alloys zineempembelelo ezifanayo kumandla we-flexural kunye nokuqina kwempembelelo. Ngokubanzi, i-alloys enzima zizinto ezinqabileyo, kwaye umsebenzi we-elastic deformation ubala umlinganiselo omkhulu xa uphantsi kwempembelelo, ngoko ke amandla okuguquguquka kwe-alloy anempembelelo ebalulekileyo kwixabiso lokuqina kwempembelelo.

Kwi-alloy equkethe i-10% ye-Co, kunye nokunyuka kwe-WC ubungakanani bengqolowa, nangona ubunzima bokuphuka kwe-alloy bunyuka, amandla e-flexural ayancipha kwaye ixabiso lokuqina kwempembelelo liyancipha, libonisa ukuba amandla okuguquguquka adlala indima ephambili kwimpembelelo yokuqina. .

Njengoko ukuqina kwe-carbide ene-cemented kukhula, ukuqina kwe-fracture kuthanda ukuhla. Kodwa phakathi koluhlu oluthile, lubonisa ukuba ezinye izinto zichaphazela ukuqina kwe-fracture phantsi kobunzima obufanayo.

Ngokuhlalutya ubudlelwane phakathi kokuqina kwempembelelo, ukuqina kwe-fracture kunye nezinye iipropathi zemishini kunye neeparitha zesakhiwo se-carbide enesamente eveliswa ngeendlela ezahlukeneyo, ubungakanani be-WC kunye neemeko zenkqubo ezahlukeneyo, sithatha ezi zigqibo zilandelayo:

Kukho izinto ezininzi ezichaphazela ixabiso lokuqina kwempembelelo ye-carbide ene-cemented, ngokukodwa kubandakanywa iziphene zesakhiwo, amandla kunye nokuqina, njl. Amandla e-flexural e-alloy anempembelelo enkulu kwimpembelelo yokuqina.Impembelelo yempembelelo kunye namandla aguquguqukayo agcina ubudlelwane obuthile bomgca. Kuphela phantsi kwemeko yamandla afanayo e-flexural, ii-alloys ezinobunzima obuhle bokuphuka zibonisa ukuqina kwempembelelo engcono.

Ukuqina kwe-fracture ye-cemented carbide inxulumene kakhulu nobunzima. Njengoko ukuqina kwe-alloy kukhula, ukuqina kwe-fracture ngokusisiseko kuncipha ngokulandelelana, kodwa kuyaguquguquka phakathi koluhlu oluthile. Xa ubulukhuni bufana, i-low-Co coarse-grained alloy inobunzima obungcono bokuphuka. Iialloyi ezibunjwe ngendlela efanayo zinokuqina okuphezulu kokwaphuka kodwa amandla asezantsi okuguquguquka kunye nokuqina kwempembelelo kunealloyi ezingakhiwanga ngendlela efanayo.

Xa kuthelekiswa nexabiso lokuqina kwempembelelo ye-cemented carbide, ixabiso lokuqina kwe-fracture linokubaluleka okubaluleke ngakumbi. Idityaniswe nezalathisi ezintathu zokusebenza koomatshini bokuqina kokwaphuka, ubulukhuni kunye namandla okuguquguquka kwealloyi, inokubonakalisa ngcono ukusebenza kwealloyi.