Kwiimeko zemizi-mveliso yezitofu zetonela kunye nezitshisi zemibhobho, indawo yobushushu obuphezulu ifana “nentaba yedangatye” – izixhobo zezixhobo kufuneka zimelane nokuqhotsa ixesha elide ngaphezulu kwe-800 ℃, ngeli lixa zikwaxhathisa ukhukuliseko lweegesi ze-oxidizing kunye neegesi ezineasidi. Izinto zentsimbi zemveli zithande ukuthamba kunye nokuguqulwa kwesi singqongileyo, okukhokelela ekunciphiseni ngokukhawuleza kwexesha lokuphila. Nangona kunjalo,intonga yesikwere yerola eyenziwe ngesilicon carbide (SiC)izinto eziphathekayo zifana "nomlo wobushushu obuphezulu", exhomekeke kwi-gene yayo yokumelana nobushushu, ibe "yi-ankile yolwandle" yokusebenza ngokuzinzile kweekhilni zobushushu obuphezulu.
Isizathu sokuba ii-silicon carbide square beam rollers zibe "ngumdlali we-ace" kwindawo yobushushu obuphezulu kungenxa yeempawu zabo ezizodwa:
1. Yakha "umqobo we-thermal" ozakhele ngokwakho
Xa ubushushu budlula i-1200 ℃, ifilimu ye-silicon dioxide exineneyo (SiO ₂) ifilimu ye-oxide iya kuzenzela ngokuzenzekelayo kumphezulu we-silicon carbide. Olu luhlu "lwesikrweqe esicacileyo" alukwazi ukwahlula kuphela impembelelo echanekileyo yokushisa okuphezulu kwi-substrate, kodwa kunye nokuchasana nokungena kweegesi ze-acidic, ukuphumeza "ukukhuselwa kabini kwi-corrosion ephezulu".
2. Okukhona isiya ishushu, kokukhona isiba namandla
Ngokuchaseneyo neempawu zentsimbi ezithambileyo xa zisesichengeni sobushushu, isilicon carbide ayigcini nje ngokugcina amandla ayo okugoba kuluhlu lobushushu obuphezulu obungama-800 ℃ -1350 ℃, kodwa ikwabonisa ukongezwa okuthile. Oku "kuhamba ngokuchasene nomkhwa" uphawu lomzimba luvumela i-roller bar ukuba ihlale iqinile kwiindawo eziphakamileyo zokushisa, ukuphepha ukudilika kwesakhiwo okubangelwa ukuthambisa.
3. Thermal “teleportation master”
I-thermal conductivity ye-silicon carbide iphindwe kane kuneyentsimbi, enokukhawuleza kwaye isasaze ngokulinganayo ubushushu bendawo "njengomgwaqo omkhulu we-thermal", ukuphepha ukuqokelela "iindawo ezishushu" kwi-oven. Olu phawu alukhuseli kuphela i-roller ngokwayo, kodwa lugcina uzinzo lwe-desulfurization reaction lokushisa, ukuphucula ukusebenza kakuhle ngokubanzi.
Uzalelwe iimeko zobushushu obuphezulu kwishishini
Ukumelana nobushushu obuphezulu be-silicon carbide square beam rollers kubenza babalasele ngakumbi kwiimeko zobushushu obuphezulu be-desulfurization ezifana neebhoyila zamandla obushushu, i-sintering yentsimbi, kunye nokuqhekeka kweekhemikhali. Emva kokwamkela eli candelo, amashishini anokunciphisa kakhulu ukuphindaphinda kobushushu obuphezulu kunye nokugcinwa, ngelixa ukwandisa ubomi benkonzo yezixhobo ukuya kumaxesha amaninzi kwizinto zemveli, ukuphumeza ngokwenene "ukushisa okuphezulu ngaphandle kokuvala, ukukhuselwa kwendalo ngaphandle kokupholisa".
Njengeshishini elitsha elikhethekileyo kuphando kunye nophuhliso lwezixhobo ze-silicon carbide ceramic, sizazi kakuhle iintlungu zezixhobo phantsi kweemeko zokusebenza ezigqithisileyo. Yonke i-silicon carbide square beam roller ibandakanya ukuphononongwa kokugqibela kwesayensi yezinto. Kwixesha elizayo, siya kuqhubeka nokugxila "kwiqondo eliphezulu lokuchasana nokushisa" njengeyona ndlela iphambili yokuqhubela phambili, kwaye sisebenzise amandla eteknoloji ukukhusela umgca wokukhusela oluhlaza wemveliso yemveliso.
Ixesha lokuposa: Apr-24-2025