Uluhlu oluphezulu lwentsimbi yemanganese -- izinto eziphambili ze-alloy

I-lining plate iyona nxalenye ephambili yeisityumzi, kodwa ikwayeyona ndawo inxitywayo. Intsimbi ephezulu yemanganese njengesixhobo esisetyenziswa ngokuqhelekileyo, ngenxa yempembelelo yayo eyomeleleyo okanye ukunxibelelana ngamandla angaphandle xa umphezulu uya kuqina ngokukhawuleza, kwaye undoqo usagcina ukuqina okuqinileyo, lo bunzima bangaphandle kunye nokuqina kwangaphakathi zombini ukunxiba kunye neempawu zokumelana nempembelelo kwi ukuchasana nempembelelo enamandla, uxinzelelo olukhulu, ukunyanzeliswa kwayo kokugqoka akuhambelani nezinye izinto. Apha ukuthetha ngempembelelo yezinto eziphambili zokudibanisa kwiipropati zentsimbi ephezulu ye-manganese.

I-1, xa i-carbon element iphonswa, ngokunyuka komxholo wekhabhoni, amandla kunye nobunzima bensimbi ephezulu ye-manganese iqhubeka iphuculwa phakathi koluhlu oluthile, kodwa iplastiki kunye nokuqina kuyancipha kakhulu. Xa umxholo wekhabhoni ufikelela malunga ne-1.3%, ukuqina kwentsimbi ye-as-cast kuncitshiswe kwi-zero. Ngokukodwa, umxholo wekhabhoni wensimbi ephezulu ye-manganese esebenza phantsi kweemeko zokushisa eziphantsi kubaluleke kakhulu, kunye nomxholo wekhabhoni we-1.06% kunye ne-1.48% yeentlobo ezimbini zetsimbi njengothelekiso, ukungafani kobunzima phakathi kwezi zibini malunga namaxesha angama-2.6 kwi-20 ℃, kwaye umahluko malunga namaxesha angama-5.3 kwi -40 ℃.

Ngaphantsi kwemeko yempembelelo engenamandla, ukunyanzeliswa kwentsimbi ephezulu ye-manganese inyuka ngokunyuka kwekhabhoni, kuba isisombululo esiqinileyo sokuqiniswa kwekhabhoni kunokunciphisa ukugquma kwe-abrasive kwintsimbi. Ngaphantsi kweemeko ezithintekayo ezinamandla, ngokuqhelekileyo kunethemba lokunciphisa umxholo wekhabhoni, kwaye isakhiwo se-austenitic sesigaba esisodwa sinokufumaneka ngonyango olushushu, oluneplastiki enhle kunye nokuqina kwaye kulula ukuqinisa ngexesha lokuqulunqwa.

Nangona kunjalo, ukhetho lomxholo wekhabhoni ludibaniso lweemeko zokusebenza, isakhiwo se-workpiece, iindlela zenkqubo yokuphosa kunye nezinye iimfuno zokuphepha ukunyuswa ngokungaboniyo okanye ukunciphisa umxholo wekhabhoni. Ngokomzekelo, ngenxa yesantya sokupholisa esicothayo sokuphosa ngeendonga eziqinileyo, umxholo wekhabhoni ophantsi kufuneka ukhethwe, onokunciphisa impembelelo yemvula yekhabhoni kumbutho. Ukulahlwa kweendonga ezinqabileyo kunokukhethwa ngokufanelekileyo kunye nomxholo ophezulu wekhabhoni. Izinga lokupholisa lokuphoswa kwesanti licotha kunelo lokuphosa isinyithi, kwaye umxholo wekhabhoni wokuphosa unokuba phantsi ngokufanelekileyo. Xa uxinzelelo olucinezelayo lwentsimbi ephezulu ye-manganese luncinci kwaye ubunzima bezinto eziphathekayo buphantsi, umxholo wekhabhoni unokunyuswa ngokufanelekileyo.

I-2, i-manganese i-manganese yinto ephambili ye-austenite ezinzileyo, i-carbon kunye ne-manganese inokuphucula ukuzinza kwe-austenite. Xa umxholo wekhabhoni ungatshintshi, ukwanda komxholo we-manganese kukulungele ukuguqulwa kwesakhiwo sensimbi kwi-austenite. I-Manganese iyanyibilika kwi-austenite kwintsimbi, enokomeleza isakhiwo se-matrix. Xa umxholo we-manganese ungaphantsi kwe-14%, amandla kunye neplastiki iya kuphuculwa ngokunyuka komxholo we-manganese, kodwa i-manganese ayinakulungele ukusebenza nzima, kwaye ukwanda komxholo we-manganese kuya kuwonakalisa ukunyanzeliswa kokunxiba, ngoko umxholo ophezulu imanganese ayinakusukelwa ngobumfama.

I-3, ezinye izinto ze-silicon kuluhlu lomxholo oqhelekileyo zidlala indima encedisayo kwi-deoxidation, phantsi kweemeko zempembelelo ephantsi, ukwanda komxholo we-silicon kunceda ekuphuculeni ukuxhathisa ukunxiba. Xa umxholo we-silicon uphezulu kune-0.65%, ukuthambekela kwentsimbi yokuqhekeka kuqiniswa, kwaye ngokuqhelekileyo kunqweneleka ukulawula umxholo we-silicon ngaphantsi kwe-0.6%.

Ukongeza i-1% -2% ye-chromium kwintsimbi ephezulu ye-manganese isetyenziselwa ukwenza amazinyo ebhakethi e-excavators kunye ne-lining plate ye-cone crusher, enokuphucula kakhulu ukuxhatshazwa kweemveliso kunye nokwandisa ubomi benkonzo. Ngaphantsi kweemeko ezifanayo zokuguqulwa, ixabiso lobulukhuni bentsimbi ye-manganese equkethe i-chromium iphezulu kuneyentsimbi ngaphandle kwechromium. I-nickel ayichaphazeli umsebenzi wokuqina kunye nokunganyangeki kwentsimbi, ngoko ke ukuxhathisa ukunxiba akunakuphuculwa ngokudibanisa i-nickel, kodwa indlela i-nickel kunye nezinye isinyithi ezifana ne-chromium zongezwa kwintsimbi ngaxeshanye kunokuphucula ubulukhuni bentsimbi. , kwaye uphucule ukuxhathisa ukunxiba phantsi kweemeko zokunxiba ze-abrasive ezingenamandla.

Izinto ezinqabileyo zomhlaba zinokuphucula ukuqina komaleko we-deformation yentsimbi ephezulu yemanganese, ukuphucula ukukwazi ukubopha umaleko owenziwe lukhuni kunye ne-matrix engaphantsi, kunye nokunciphisa ukuba nokwenzeka kokwaphuka koqweqwe oluqinileyo phantsi komthwalo wempembelelo, okuluncedo ekuphuculeni impembelelo. ukuxhathisa kunye nokunxiba ukuxhathisa kwentsimbi ephezulu yemanganese. Ukudityaniswa kwezinto ezinqabileyo zomhlaba kunye nezinye i-alloying elements zihlala zifikelela iziphumo ezilungileyo.

Yeyiphi indibaniselwano yezinto eyona ilungileyo? Iimeko zoxinzelelo oluphezulu kunye neemeko zoxinzelelo oluphantsi zihambelana nemigangatho eyahlukeneyo yokudibanisa izinto, ukuze udlale umsebenzi onzima kunye nokumelana nokunxiba kwentsimbi ephezulu yemanganese.