Ng’ombe yapakatikati ya ng’anjo ikuwombera njerwa zopumira

Dzina la mankhwala:

Njerwa zopumira pakuwombera pansi pa ng’anjo yapakatikati yapafupipafupi

Gulu: Njerwa Zopumira Zomwe Zikuphulika Pansi pa Moto Wapakati Wapakati

Tsatanetsatane mankhwala

Kutentha kwakukulu kwa njerwa zopumira zomwe zimawombedwa pansi pa ng’anjo yapakatikati yamatumba makamaka zimadalira thupi, mankhwala ndi kapangidwe ka mchere pazinthu zopangira zomwe zimagwiritsidwa ntchito. Tongyao ndiogulitsa zida zotsatsira zamakampani, ndipo kupanga njerwa zopumira kuti ziwombere pansi pamiyeso yapakatikati yagwiritsidwa ntchito kwambiri. ntchito.

Kugwiritsa Ntchito Brineable Brick Refining Technology mu Medium Frequency Induction Furnace

Pogwiritsa ntchito njerwa zomwe zimatha kupumira mpweya, tafotokoza mwachidule ukadaulo woyatsa waubweya wamkati wapakati, womwe wasintha ng’anjo yapakatikati yapafupipafupi kuchokera ku “chitsulo chamankhwala” kukhala chitsulo. Nthawi zambiri, mtundu wa chitsulo chosungunuka (taijin) wafika pa ng’anjo ya AOD ndi LF yoyatsira ng’anjo. , Mulingo wabwino wa VD zingalowe zatsukidwa ndi ng’anjo.

Gasi wofunikira (monga high-purity argon) amatumizidwa kuzitsulo zosungunuka kudzera pa njerwa zopumira, ndipo pakatha kuchuluka kwakanthawi ndi nthawi yolowera, ma inclusions (monga Sio2, Al2O3, MgO, ndi zina zambiri) atha kukhala kuchepetsedwa. Ndipo 【O】 【N】 【H】 okhutira, pali zofunika zapadera monga pamene decarburization, mutha kuwombera mu argon / oxygen mpweya wosakanikirana, womwe ungachepetse mpweya womwe ulipo, mukakumana ndi chitsulo chosakanikirana ndi nitrogen, chikuwombera mu nayitrogeni kungakhale kuonjezera ammonia.

Mfundo yogwirira ntchito Njira yoyeretsera mwa kuponyera mpweya wa argon mu ng’anjo yamoto pambuyo poti chitsulo chosungunuka chisungunuke. Pre-deoxygenation ikamalizidwa, atatha kuyesa ndi kusanthula, mpweya wabwino kwambiri wa argon umayambitsidwa ndi chitsulo chosungunuka kudzera pa njerwa yopumira yomwe imayikidwa pansi pa ng’anjo. Gasi ya argon ikadutsa pa njerwa zopumira, imakhala ndi kupezeka kwakukulu, ndikupanga tinthu tating’onoting’ono tothamanga kwambiri. Kutuluka kwa bubble, ma thovu ambirimbiri omwe amadutsa muzitsulo zosungunuka amatulutsa kuyenga. Mpweya uliwonse wa argon mkati mwa chitsulo chosungunuka ndi “chipinda chopumira” chaching’ono, ndipo H, O, N ndi mpweya wina sapezeka mu bubu wa argon. Izi zikutanthauza kuti, kupanikizika pang’ono kwa mpweya mu bubble wa argon ndikofanana ndi zero. Pamene bubble ya argon yokhala ndi kuthamanga kwakukulu imadutsa pazitsulo zosungunuka, chosungunuka [H] [O] [N] ndi c0 chosasungunuka chimangolowa bulamu la argon ndikutsatira kuwira Kukwera ndikusefukira. Kuti mukwaniritse cholinga chotsika.

Pambuyo poyenga, mtundu wa chitsulo komanso kuyera kwazitsulo kumakulitsidwa bwino, kusiyanitsa kwa inclusions kusamba koyambirira ndi pambuyo pake kumachepa kwambiri, ndipo mpweya umachepetsedwa kwambiri. Chitsanzo tsopano chikufanizidwa motere

1. Inclusions: Njira yoyesera yaying’ono kwambiri yopangira zinthu zazitsulo mu GB10561-2005

Katunduyo ABCD

Sulfide aluminiyamu silicate Mpira okusayidi

Avereji musanayeretse 1.8 1.7 1.5 2.1

Avereji atayeretsa 0.55 0.64 0.5 0.67

Kuchepetsa kwapakati% 69 62 67 68

Zotsatira zenizeni zakuyezera zimakwaniritsa zofunikira za muyezo.

2. Mavitamini a hydrogen ndi ochepera 1.0ppm, amakwaniritsa zofunikira za die steel ≤2.5ppm, ndi mitundu ina yazitsulo ≤3.0ppm.

3. Zomwe zili ndi oxygen ndizochepera 0.0050%.

4. Chitsulo cha ingot chikakonzedwa, kuyesa kwa akupanga kwafika pamlingo wachiwiri wa (GB / T13315-1991).

5. Kuyerekeza mawonekedwe amakina azitsulo zosapanga dzimbiri zosapanga dzimbiri 304 popanda komanso kuyeretsa: (GB / T328-2002)

1) Mphamvu yolimba ndi 549.53Mpa isanayeretseke ndi 606.82Mpa pambuyo poyenga yawonjezeka ndi 57.29Mpa

2) Mphamvu yokolola ndi 270Mpa isanayeretseke ndipo 339.52Mpa pambuyo poyenga yawonjezeka ndi 69.52Mpa

3) Limbikitsani 38.46KN musanayeretse 49.10KN mutayeretsa Kuchulukitsa ndi 10.64KN

Mfundo zochepa:

a) Popeza nthawi yolira ya argon pa ng’anjo iliyonse yazitsulo ndi 5 ~ 10mm, kuwombera kwa argon kumachitika pambuyo powonjezera Taijin. Pambuyo pakuwomba, kugwedeza kwazitsulo sikungakhudze nthawi yosungunuka ndipo sikuwonjezera kugwiritsa ntchito mphamvu.

b) Kuchotsa kwa [N] [H] [O] pakuwombera mpweya wa argon sikuyambitsa kuyankha kwamankhwala, sikuti kungofupikitsa moyo wa zotengera m’ng’anjo, koma mosiyana, moyo wa m’ng’anjo yayitali umakhalitsa chifukwa mpaka homogenization ya kusungunuka kwa kutentha m’ng’anjo.

c) Argon ndi mpweya wamaganizidwe ndipo ndiotetezeka kugwiritsa ntchito.

Mwachidule: Kutsekemera kwapakati pafupipafupi kotsekemera kwaukadaulo komwe kumadziwika ndi kugwiritsa ntchito njerwa zopumira ndi njira yopangira ndalama zochepa, mwayi wofulumira, mtengo wotsika, komanso mtundu wapamwamba. Ndimapangidwe opulumutsa mphamvu ndi chilengedwe komanso ochepetsa kupanga. Kutengera ukadaulo uwu, kuphatikiza njira yoteteza, kuponyera kwapamwamba komanso zopangidwa ndi chitsulo zimatha kupangidwa.