Ukunyanzeliswa kohlalutyo lwebhakethi izinyo ezisebenzayo kunye noqhagamshelwano lwento egrunjiweyo, kwinkqubo yokwemba ngokupheleleyo kwizigaba ezahlukeneyo zokusebenza kwiimeko ezahlukeneyo zoxinzelelo.Xa incam yezinyo ichukumisa kuqala umphezulu wezinto eziphathekayo, incam yezinyo lebhakethi ichaphazeleka kakhulu ngenxa yesantya sayo. Izinyo lebhakethi kunye nezixhobo zenzeke intshukumo ehambelanayo, ivelisa uxinzelelo olukhulu kakhulu oluphezulu kumphezulu, ngaloo ndlela ivelisa amandla amakhulu okukhuhla phakathi kwezinyo lebhakethi elisebenzayo kunye nezinto eziphathekayo. amazinyo, khetha amazinyo eemele ngokuqinisekileyo ngononophelo ngakumbi daddus ukuthengisa amazinyo eemele Ndasebenzisa kwakhona amazinyo eemele yakhe, umphumo ulungile!Uxinzelelo olulungileyo kubuso obusebenza ngaphambili ngokucacileyo mkhulu kunoko kubuso obusebenza ngasemva, kwaye ubuso obusebenza ngaphambili bugugile kakubi. Inokuthi igwetywe ukuba uxinzelelo olulungileyo kunye namandla okuxhatshazwa yizona zinto ziphambili zangaphandle zomatshini wokungaphumeleli kwamazinyo ebhakethi, adlala indima enkulu kwinkqubo yokungaphumeleli.
Uhlalutyo lwenkqubo: thatha iisampulu ezimbini ukusuka ebusweni bokusebenza ngaphambili nangasemva ngokulandelelanayo, kwaye uzigaye tyaba uvavanyo lobulukhuni.Kufunyaniswa ukuba ubulukhuni besampulu efanayo buhluke kakhulu, kwaye isigwebo sokuqala kukuba izinto azifani.Iisampulu zaziphantsi, ziphuculwe kwaye zigqwethiwe, kwaye kwafunyaniswa ukuba kukho imida ecacileyo kwisampulu nganye, kodwa imida yokujonga i-part yegrafu ephakathi kunye ne-grain participant yahlukile kwi-grand point. mnyama, nto leyo ebonisa ukuba isiqwenga mhlawumbi sisihombiso esifakwe ngaphakathi. Kumphezulu, indawo evalelweyo kufuneka ibe yibhloko efakiweyo.Uvavanyo lobulukhuni kumacala omabini omda lwenziwa kwi-hrs-150 digital display rockwell hardness tester kunye ne-mhv-2000 digital display microhardness tester, kwaye umahluko obonakalayo wafunyanwa.Inxalenye evaliweyo yibhloko yokufaka kunye nenxalenye ejikelezileyo yi-matrix.Ukwakheka okufanayo kwe-matrix. Ukubunjwa kwe-alloy ephambili (iqhezu lobuninzi, i%) ngu-0.38c, 0.91cr, 0.83mn kunye ne-0.92si.Iipropati zemishini yezixhobo zetsimbi zixhomekeke ekubunjweni kwazo kunye nenkqubo yonyango lobushushu.Ukwakheka okufanayo kunye nokwahlukana kobunzima kubonisa ukuba amazinyo ebhakethi asetyenziswe ngaphandle kokunyanga ukushisa emva kokuphosa.Ukuqwalaselwa kwezicubu ezilandelayo kuqinisekisa oku.
Uhlalutyo lwentlangano ye-metallographic observation lubonise ukuba i-substrate ubukhulu becala imnyama i-lamellar ecocekileyo, i-piece ye-lamellar ehleliweyo ineenxalenye ezimbini, i-fritter white block kunye ne-black block, kunye ne-white block kude nombutho wecandelo lomnqamlezo ngakumbi (kunye novavanyo olungakumbi lwe-microhardness lubonisa ukuba umbutho we-ferrite amabala amhlophe, i-black fine lamellar structure ye-troostite okanye i-troostite hybrid faka i-burrilite troostite kwintlangano ye-troostite kunye ne-troostite faka i-burrilite troostite. iyafana naleyo yezinye imimandla yenguqu yesigaba kwindawo echaphazelekayo yobushushu be-welding.Phantsi kwesenzo sobushushu besinyithi sesinyithi ngexesha lokugalela, lo mmandla use-austenite kunye ne-ferrite zone yesigaba sesibini, apho i-ferrite ikhule ngokupheleleyo kwaye i-microstructure yayo igcinwa kwiqondo lokushisa.Ngenxa yokuba udonga lwe-emele izinyo luncinci kwaye umthamo webhloko lokufaka ibhloko inkulu, indawo ephakathi ye-ferrite ifakwe enkulu, indawo ephakathi ye-ferrite ifakwe enkulu, i-ferrite ephakathi
Uvavanyo lokunxiba kwi-mld-10 umatshini wokuvavanya ukugqoka lubonisa ukuba ukunyanzeliswa kokugqoka kwe-matrix kunye nokufaka kungcono kunokucima i-45 yentsimbi phantsi kwemeko yovavanyo oluncinci lwempembelelo encinci.Okwangoku, ukuxhathisa kokugqoka kwe-matrix kunye nokufakwa kuyahluka, kwaye i-matrix ixhaphake kakhulu kunokufaka (jonga itafile 2) .Ukubunjwa kumacala omabini e-matrix ngoko ke kubonwa ngokucokisekileyo amazinyo njengoko kufakwe kwi-bucket ye-ACT, kwaye i-insert iyakwazi ukubonwa njenge-bucket i-chiller.Kwinkqubo yokuphosa, ingqolowa ye-matrix ihlanjululwe ukuphucula amandla ayo kunye nokuxhatshazwa kokugqoka.Ngenxa yempembelelo yokutshisa ukushisa, isakhiwo sokufakela sifana neso sobushushu be-welding zone echaphazelekayo.Ukuba unyango olufanelekileyo lobushushu lwenziwa emva kokuphosa ukuphucula isakhiwo se-matrix kunye nokufaka, ukuxhathisa ukunxiba kunye nobomi benkonzo yamazinyo ebhakethi kuya kuphuculwa ngokucacileyo.
Ixesha lokuposa: Apr-15-2019