Inkqubo yokukhenkceza kunye nenkqubo yokushisa okuphezulu isetyenziswa kwiinkalo ezininzi.Ngokomzekelo, inkqubo yokunyanga ukushisa yinkqubo yokufudumala izinto zetsimbi okanye iimveliso zabo kwiqondo lokushisa elifunekayo, lipholise ngesantya esikhethiweyo kunye nendlela, litshintshe isakhiwo sazo sangaphakathi, kwaye lifumana ukusebenza okufunekayo.Olu hlobo lwenkqubo lusetyenziswa kwiindawo ezininzi zokusetyenzwa kwemveliso, kodwa intonga yepiston ingena njani kunyango lobushushu?Ziziphi iindlela zonyango lwayo lokushisa?Yantai Shunfa Component Pneumatic Co., Ltd. uphendula ngolu hlobo lulandelayo.
Injongo yokucima kunye nonyango lokufudumala kukuqinisekisa ukuba intonga yepiston ineepropati ezibanzi zoomatshini ezihambelana namandla, ukuqina, iplastiki kunye nokuqina kakuhle.Ulwakhiwo lwangaphakathi luyi-uniform kunye ne-fine tempered sorbite, elungiselelwe ukucima umphezulu olandelayo.Intonga ende yepiston enobude obuyi-3800-4200 kunye nedayamitha ye-Φ 90- Φ 110mm, ngoko ke izixhobo zayo zokufudumeza zamkela i-150KW yohlobo lohlobo lweziko lokumelana kakuhle okanye i-600KW exhonyiweyo eqhubekayo yokumelana neziko lokufudumeza, kunye nobushushu obulawulwa kwiindawo ezimbini: ngaphezulu. kwaye ngaphantsi.Iiparamitha zenkqubo yonyango lobushushu: Iityhubhu ezine zixhonywe kwiziko elinye kwiziko lohlobo lweziko, kunye nobushushu bokucima ubushushu be-830 ± 10 ℃.Emva kokubamba imizuzu ye-160, iibhubhu zicinywa ngamaxesha amabini, kunye neebhubhu ezimbini zicinywa rhoqo.Amanzi okupholisa ajikelezayo asetyenziselwa ukupholisa iityhubhu, ezijikeleza phezulu naphantsi ngexesha lokucima ukuqinisekisa ukupholisa okufanayo ukuya kwinqanaba elikhulu.Xa ipholile ukuya malunga ne-100 ℃ (iintonga zikhupha umphunga kodwa zingabi namaqamza), amanzi aqukuqela kwisithando somlilo sohlobo lokushushumbisa.
Emva koko iityhubhu ezine zifudunyezwa kwi-550 ± 10 ℃ ngexesha, zigcinwe imizuzu eyi-190, kwaye zifudumeze phambi kokupholisa kwamanzi.Emva kwenkqubo engentla yokucima kunye nonyango olushushu, ukusebenza akuzinzile, kwaye ubunzima buguquka phakathi kwe-210-255HBS.Kukwakho umahluko obalulekileyo wokuqina phakathi kwendawo ephezulu, ephakathi, kunye nasezantsi yentonga enye yepiston.Kwaye ngamanye amaxesha kukho ukushisa komntu kunye nobunzima obungafanelekanga okanye amandla aphantsi afuna unyango lokulungiswa.Ukucima i-deformation kukhulu kakhulu, kwandisa ubunzima bokulungiswa okulandelayo kunye nokulungiswa komatshini.Ngenxa yobunzima obunzima bentsimbi ye-45, ulwakhiwo lwangaphakathi olujongwe yi-metallography aluyiyo enye kunye ne-uniform tempered sorbite, kodwa kunoko kukho inani elikhulu le-sorbite yamahhala ekhoyo phakathi kwayo, kwaye ezinye iindawo zinenethiwekhi ye-sorbite kunye ne-Widmann isakhiwo.
Ukucombulula ezi ngxaki zingentla, sisebenzisa ukucima ubushushu obuqhubekayo kunye nesithando somlilo sokucima kunye nokufudumeza, kunye neetyhubhu ezi-2 ezifakwe ityhubhu nganye.Emva kokufudumeza kunye ne-insulation, isithando somlilo sicima ngokuzenzekelayo, kwaye ityhubhu enye iveliswa ngokubetha ukuze kuqinisekiswe ukufudumeza okufanayo.Ukuqwalasela ukuba ubushushu be-Ac3 yentsimbi engama-45 yi-770-780 ℃, ukuze kusulungekiswe ukutya okuziinkozo kwaye kuncitshiswe deformation kangangoko sinakho, samkela 790 ± 10 ℃ intercritical inkqubo yokucima ukusulungekisa okuziinkozo austenite, kwaye ufumane ecikizekileyo kwaye iyunifomu Flat noodles. martensite emva kokucima, ukuze kuphuculwe amandla kunye nokuqina kwentonga yepiston.Ukunciphisa ngakumbi i-deformation kunye nokuphucula ukufana kokupholisa kwesisombululo sokucima, songeze i-5% -10% yokucima izongezo kumanzi ompompo.Ngexesha lokucima, sasebenzisa nempompo yamanzi ejikelezayo ukunyanzela isisombululo sokupholisa ukujikeleza ukupholisa.I-Tempering isafudunyezwa kwi-550 ± 10 ℃, kunye nesingqisho sokucima esifanayo nangaphambili.Emva kokupholisa, ipholiswa ngamanzi ukunqanda ukwenzeka kohlobo lwesibini lwe-brittleness yokucaphuka.Emva kokuphuculwa kwenkqubo engentla, isakhiwo sangaphakathi siyafana kunye ne-sorbite epholileyo, kunye nokususwa kwe-ferrite enkulu okanye i-reticular kunye nesakhiwo se-Widmann, okubangelwa ubunzima obufanayo kunye nokuzinza kunye namandla.
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Ixesha lokuposa: Sep-05-2023
