1. Sebenzisa umvavanyi wobulukhuni beVickers wamalungu adityanisiweyo (uvavanyo lobulukhuni lweWeld Vickers):
Ekubeni i-microstructure yecandelo elidibeneyo le-weldment (i-weld seam) ngexesha le-welding iya kutshintsha ngexesha lenkqubo yokwakheka, inokwenza ikhonkco elibuthathaka kwisakhiwo esidibeneyo.Ubunzima be-welding bungabonakalisa ngokuthe ngqo ukuba inkqubo ye-welding inengqiqo.Emva koko ubunzima beVickers Indlela yokuhlola yindlela enceda ukuvavanya umgangatho wee-welds.Umvavanyi wobulukhuni beVickers waseLaizhou Laihua Hardness Tester Factory unokwenza uvavanyo lokuqina kwiindawo ezidityanisiweyo okanye kwiindawo ezidityanisiweyo.Xa usebenzisa i-Vickers hardness tester ukuvavanya iindawo ezidityanisiweyo, le miqathango yovavanyo ilandelayo kufuneka iqatshelwe:
I-flatness yesampuli: Phambi kokuvavanya, sigaya i-weld ukuba ivavanywe ukwenza umphezulu wayo ube mpuluswa, ingenamaleko e-oxide, iintanda kunye nezinye iziphene.
Kumgca ophakathi we-weld, thatha inqaku kwindawo egobileyo yonke i-100 mm yokuvavanya.
Ukukhetha amandla ovavanyo ahlukeneyo kuya kubangela iziphumo ezahlukeneyo, ngoko ke kufuneka sikhethe amandla ovavanyo afanelekileyo phambi kovavanyo.
2. Ungayisebenzisa njani iVickers hardness tester (i-micro Vickers hardness tester) ukubona ubunzulu bomaleko lukhuni?
Indlela yokubona ubunzulu bomaleko oqilima wentsimbi kunye nonyango oluphezulu olufana ne-carburizing, i-nitriding, i-decarburization, i-carbonitriding, njl., kunye neendawo zentsimbi eziye zacinywa?
Ubunzulu obusebenzayo bomaleko obunzima busetyenziswa ikakhulu ukufudumeza umphezulu wendawo ukuze kubangele utshintsho lwesakhiwo kunye nokusebenza kumphezulu wentsimbi ukuphumeza umphumo wokwandisa ubulukhuni kunye namandla kunye nokuqina.Ibhekisa kumlinganiselo ukusuka kwicala elithe nkqo lenxalenye yomhlaba ukuya kumda we-microstructure ochaziweyo.Okanye umgama owenziwe lukhuni wobunzima obuncinci obuchaziweyo.Ngesiqhelo sisebenzisa indlela yobulukhuni begradient yovavanyo lobulukhuni beVickers ukubona ubunzulu obuqinileyo bomaleko womsebenzi.Umgaqo kukubona esebenzayo umaleko lukhuni ubunzulu esekelwe utshintsho micro-Vickers ubulukhuni ukusuka kumphezulu ukuya kumbindi inxalenye.
Ngeendlela ezithile zokusebenza, nceda ubhekisele kwividiyo yenkampani yethu yokuvavanya ubulukhuni beVickers.Oku kulandelayo yintshayelelo yokusebenza elula:
Lungiselela isampuli njengoko kufuneka, kwaye umgangatho wokuvavanya kufuneka upholiswe kwindawo yesibuko.
Khetha amandla ovavanyo lweVickers umvavanyi wobulukhuni.Ubunzima bobunzima bulinganiswa kwiindawo ezimbini okanye ngaphezulu.Ubulukhuni beVickers bulinganiswa kumgca omnye okanye ngaphezulu onxuseneyo kumphezulu.
Ukuzoba igophe lobulukhuni ngokusekelwe kwidatha elinganisiweyo, kuyaziwa ukuba umgama othe nkqo ukusuka kumphezulu wenxalenye ukuya kwi-550HV (ngokubanzi) bubunzulu obusebenzayo bomaleko.
3. Indlela yokusebenzisa i-Vickers tester yokuqina kovavanyo lobunzima bokuphuka (indlela yokuvavanya ubulukhuni be-Vickers)?
Ukuqina kwe-fracture yixabiso lokuchasana eliboniswa yimpahla xa i-specimen okanye i-partnent fractures phantsi kweemeko ezingazinzanga ezifana nokuqhekeka okanye iziphene ezinjenge-crack.
Ukuqina kokuqhekeka kubonisa ukukwazi kwesixhobo ukuthintela ukwanda kokuqhekeka kwaye luphawu lobungakanani bokuqina kwesixhobo.
Xa usenza uvavanyo lokuqina kokwaphuka, qala upholise umphezulu wesampulu yovavanyo kwindawo yesipili.Kwi-Vickers tester hardness, sebenzisa i-indenter ye-diamond e-conical ye-Vickers tester hardness ukwenza i-indentation kwindawo epholisiweyo kunye nomthwalo we-10Kg.Iintanda ezenziwe kwangaphambili zenziwe kwii-vertices ezine zophawu.Ngokuqhelekileyo sisebenzisa i-Vickers tester hardness ukuze sifumane idatha yobunzima bokuphuka.
Ixesha lokuposa: Apr-25-2024
