WELONG ishaft forgings ye-hydro-generator enkulu

Izinto ezibunjiweyo:

I-20MnNi kunye ne-20MnNi.

Iinkcazelo ngoomatshini:

Ngobunzima bokubumba (T) phakathi kwe-300mm <T ≤ 500mm, i-material 20MnNi kufuneka ibe namandla esivuno ≥ 265MPa, amandla okuqina ≥ 515MPa, ubude emva kokwaphuka ≥ 21%, ukunciphisa indawo ≥ ≥ ≥ ≥ 35% yempembelelo, impembelelo yamandla ) ≥ 30J, kwaye akukho zintanda ngexesha lokugoba okubandayo.

Kubunzima bokubumba (T) obungaphezulu kwe-200mm, izinto ezingama-25MnNi kufuneka zibe namandla esivuno ≥ 310MPa, amandla okuqina ≥ 565MPa, ubude emva kokwaphuka ≥ 20%, ukunciphisa indawo ≥ 35%, impembelelo yokufunxa amandla (0≥3) , kwaye akukho zintanda ngexesha lokugoba okubandayo.

Uvavanyo olungangonakalisi:

Iindlela ezahlukeneyo zovavanyo ezingonakalisi ezifana novavanyo lwe-ultrasonic (UT), uvavanyo lwemagnethi (MT), uvavanyo lokungena kulwelo (PT), kunye nokuhlolwa okubonakalayo (VT) kufuneka lwenziwe kwimimandla eyahlukeneyo yeshaft ephambili yokwenziwa kumanqanaba kunye neemeko ezahlukeneyo. . Izinto zokuvavanya kunye neendlela zokwamkelwa kufuneka zihambelane nemigangatho efanelekileyo.

Unyango Lweziphene:

Iziphene ezigqithisileyo zinokususwa ngokusila ngaphakathi koluhlu lwesibonelelo somatshini. Nangona kunjalo, ukuba ubunzulu bokususwa kwesiphene budlula i-75% yesibonelelo sokugqiba, ukulungiswa kwe-welding kufuneka kwenziwe. Ukulungiswa kwesiphene kufuneka kuvunywe ngumthengi.

Imilo, iDimension, kunye noBurhabaxa boMphezulu:

Inkqubo yokubumba kufuneka ihlangabezane neemfuno zobukhulu kunye noburhabaxa bomphezulu obuchazwe kumzobo woodolo. Uburhabaxa bomphezulu wesangqa sangaphakathi (ixabiso le-Ra) lokubunjwa kuya kucutshungulwa ngumthengisi ukufikelela kwi-6.3um.

Ukunyibilika: Ii-ingots zentsimbi zokubumba kufuneka ziveliswe ngokunyibilika kwesithando sombane kwaye emva koko zicocwe ngaphandle kwesithando somlilo ngaphambi kokuphoswa kwevacuum.

Ukuqulunqa: Izibonelelo ezifanelekileyo zokusika kufuneka zinikezelwe kwi-sprue kunye neziphelo zokunyuka kwe-ingot yensimbi. Ukuqulunqa kufuneka kwenziwe kumatshini wokushicilela okwaziyo ukuqinisekisa ukuguqulwa okwaneleyo kweplastiki yecandelo elinqamlezayo lokubumba. Kucetyiswa ukuba ube ne-forging ratio enkulu kune-3.5. I-forging kufuneka isondele ngokusondeleyo kwimilo yokugqibela kunye nemilinganiselo, kwaye i-centerlines ye-forging kunye ne-ingot yensimbi kufuneka ihambelane kakuhle.

Ukunyangwa kobushushu kwiiPropati: Emva kokwenziwa, ukubunjwa kufuneka kuqhutywe ubushushu okanye unyango oluqhelekileyo kunye nokufudumala ukufumana isakhiwo esifanayo kunye neempawu. Ubuncinci bobushushu bobushushu akufunekanga bube ngaphantsi kwama-600°C.

Ukuba ufuna ulwazi oluthe kratya malunga ne-WELONG forgings yegiya enkulu kunye neringi yegiya, ngobubele usazise.