I-SA516 Gr60 Gr70 SA387Gr22CL2 Isitsha Sesitsha

Isimo sokudiliva

Ukucisha: ngemva kokushisisa esigabeni shintsha izinga lokushisa ngenhla, inqubo yokupholisa ebukhali.Khulisa ubulukhuni bento, kodwa unciphise ukuqina.
Ukushisa okuvamile: ngemva kokushisa kuze kube ngaphezu kwesigaba shintsha izinga lokushisa, kuphole ngokujwayelekile (emoyeni).
I-Annealing: ngemva kokushisisa ukuya ngaphezu kwezinga lokushisa lendawo yoshintsho, bese upholisa kancane.Susa umphumela wokucisha, susa ukucindezeleka, futhi ususe ukwakheka okufanayo.
Hlaziya: ngemva kokucisha, bese ushisa ukushisa okuthile (ngaphansi kwezinga lokushisa lokucisha), ukugcinwa kokushisa, bese upholile.Ukubunjwa okulinganayo, ukunciphisa kancane ubulukhuni, kuthuthukisa kakhulu ukuqina.

Isetshenziswa kabanzi ku-petroleum, embonini yamakhemikhali, esiteshini samandla, kubhayela nakwezinye izimboni, ukukhiqiza i-reactor, i-heat exchanger, isihlukanisi, ithangi eliyindilinga, ithangi likawoyela negesi, ithangi legesi eliwuketshezi, igobolondo lokucindezela kwe-nuclear reactor, isigubhu sebhayela, i-liquefied. Isilinda sikawoyela negesi, ipayipi lamanzi elinomfutho ophezulu we-hydropower, i-turbine volute nezinye izinto zokusebenza nezingxenye.

I-control rolling nayo iyi-control rolling

Ngesisekelo sokulungisa ukwakheka kwamakhemikhali ensimbi, ngokulawula izinga lokushisa lokushisa, izinga lokushisa eliguquguqukayo, uhlelo lokuguquguquka kanye neminye imingcele yenqubo, ngokulawula umthetho wokushintsha wenhlangano ye-austenite kanye nefomu lezicubu zemikhiqizo yoshintsho lwesigaba, ukuze kufezwe injongo. yokucwenga inhlangano kanye nokwenza ngcono amandla nokuqina.
Ukulawula ukuthungela okuvamile ukulawula ukugoqa, izinga lokushisa eligoqayo, ivolumu yokucindezela, isivinini sokupholisa, kanye nezinga lokushisa lokugcina lokuginqika nezinye izinyathelo, ukuze ukusebenza kwepuleti lensimbi kufinyelele isilinganiso esihle samandla nokuqina.
Umlilo omuhle, owaziwa nangokuthi ukujwayela, inqubo yokwelapha ukushisa kwensimbi yokushisa i-workpiece ku-Ac 3 noma i-Accm ngaphezu kuka-30 ~ 50 ℃, ukugcinwa kokushisa isikhathi esithile, ukususa esithandweni emoyeni noma isifutho samanzi, isifutho noma ukupholisa umoya.Umehluko phakathi komlilo ojwayelekile kanye nokuhoxisa ukuthi isivinini esivamile sokupholisa umlilo sishesha kancane kunejubane lokupholisa i-annealing, ngakho-ke izicubu ezivamile zomlilo zincane kunezicubu ezibambayo, futhi izici zayo zokusebenza nazo ziyathuthukiswa.Ngaphezu kwalokho, ukupholisa ngaphandle kwesithando somlilo akuhlali okokusebenza, ukukhiqiza kuphezulu, ngakho-ke ukukhiqizwa kusetshenziselwa ukufaka esikhundleni se-annealing ngangokunokwenzeka.
Ububanzi bomlilo bokusebenza obuyinhloko yilena: ① ngensimbi ye-carbon ephansi, umlilo ngemva kokuqina uphakeme kancane kuno-annealing, ukuqina nakho kuhle, kungasetshenziswa njengendlela yokusika ukucubungula kusengaphambili.② Isetshenziswa ku-carbon steel medium, ingashintshwa ukulungiswa kokulungiswa kwekhwalithi njengokwelashwa kokushisa kokugcina, kungasetshenziswa futhi njengendlela yokwelapha yokulungiselela ngaphambi kokucinywa kwendawo ngokusebenzisa indlela yokushisa yokungeniswa.③ Ukuze ithuluzi lensimbi, insimbi ethwalayo, insimbi ye-carburizing, njll., inganciphisa noma ivimbele ukwakheka kwe-mesh carbide, ngakho-ke ukuze uthole ukuhleleka okuhle okudingekayo ekufakweni kwe-spherical annealing.④ Isetshenziselwa ukubunjwa kwensimbi, ingacwengisa izicubu zokuphonsa futhi ithuthukise ukusebenza kokusika.⑤ Emakhiweni amakhulu, angasetshenziswa njengendlela yokwelapha yokugcina ukushisa ukuze kugwenywe ukuqhekeka okukhulu ngesikhathi quenching.⑥ Ngensimbi eyi-ductile cast, ukuze ukuqina, amandla, ukumelana nokuguga kuthuthukiswe, njengokwakhiwa kwezimoto, ogandaganda, i-crankshaft yenjini kadizili, induku yokuxhuma nezinye izingxenye ezibalulekile. ukuthungela, kungaqeda inethiwekhi carburization yesibili, ukuqinisekisa ukuthi zonke carburization annealing.

Imininingwane Yomkhiqizo

Umbukiso Wemboni