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1. Jiki Properties na austenitic bakin karfe
High resistivity - a karkashin jigo na wannan halin yanzu, mafi zafi da aka samar a kowace naúrar lokaci
Babban haɗin kai na faɗaɗa madaidaiciya - A ƙarƙashin shigar da zafin jiki iri ɗaya, nakasar tana da girma kuma za a haifar da damuwa.
Rashin ƙarancin zafin jiki - jinkirin watsawar zafi.
2. Common deficiency a cikin walda tsari na austenitic bakin karfe
1) Stomata: Ruwan ruwa na hydrogen da danshi ko rashin isasshen bushewa yakan faru sau da yawa
2) Cracks: zafi mai zafi da ɓarkewar rami wanda ke haifar da rarrabuwar P da S suna faruwa sau da yawa (ku kula da tarin baka za a iya kauce masa)
3) Lalacewar intergranular: zama a cikin yankin zafin jiki na 450-850 ° C na dogon lokaci, iyakar hatsi tana haɓaka chromium carbides don samar da iyakokin hatsi mara kyau na chromium.
Stomata
Karas
Intergranular lalata
3 Bakin karfe tare da lantarki na hannu gabaɗayan walda mai mahimmanci
Ajiye yanayin
Dole ne a adana shi a cikin ɗakin ajiya mai bushewa, ana ba da shawarar cewa zafin jiki na cikin gida ya wuce 5 ° C, ƙarancin dangi shine ≤ 60%, kuma ana adana shi ƙasa da shekaru 3.
Lokacin adanawa, dole ne ya zama 300mm sama da ƙasa kuma fiye da 300mm sama da bango.
Kada ku jefa shi a lokacin da kuke ɗauka, in ba haka ba yana da sauƙi don sa fata ta fadi.
Shiri kafin walda
1) sandar walda yana buƙatar bushewa don 300 · 350 ° C na awa 1, kuma za'a iya ƙara yawan zafin jiki zuwa 350 ° C ko lokacin bushewa za'a iya tsawanta daidai lokacin da yake jika sosai, da adadin adadin yadudduka a lokacin. bushewa bai kamata ya wuce yadudduka 3 ba; Zai fi kyau a yi amfani da shi tare da bushewa ko sanya shi a cikin guga mai ƙarfi don bai wuce kwanaki 2 ba don adana shi don guje wa bushewa na biyu wanda ba dole ba don hana fatar sandar walda ta fadowa.
2) Mai da tsatsa na ruwa akan farfajiyar walda suna buƙatar tsaftacewa sosai
Kula da tsarin walda
1) Zaɓin na yanzu: Koma zuwa I=(25-40)*DD shine diamita na lantarki
2) Yi ƙoƙarin rage waldawar baka
3) Sandan walda kada ya kasance mai faɗi da yawa, gabaɗaya a cikin sau 3 diamita na lantarki.
4) Gudun walda bai kamata ya kasance da jinkiri ba don hana yawan zafi da slagging; Koyaya, a cikin yanayin fashewa mai sauƙi, zaku iya zaɓar ƙaramin walda mai jinkirin halin yanzu
5) Saboda halaye na bakin karfe a tsaye waldi, narkakkar baƙin ƙarfe yana da sauƙi don gudana, kuma mafi kyawun zaɓi shine amfani da hanyar waldawar baka.
6) Lokacin waldawar Multi-Layer (channel), dole ne a tsabtace slag ɗin walda
7) Dole ne a cika rami na baka lokacin da aka rufe baka
Ƙarin umarni
1) Lokacin amfani da wutar lantarki AC, fantsama yana da girma sosai, fata yana da sauƙin ja, zurfin shigar ciki ba shi da zurfi, kuma yana da sauƙin mannewa kan allo, don haka ana ba da shawarar yin amfani da waldi na DC+
2) Lokacin amfani da DC, an fi haɗa waya ta ƙasa zuwa tsakiyar tashar kuma an gyara shi don hana karkatar da baka ko fashewar baka.
Kashi | Nau'in fata | Samfura | Zazzabi | Lokaci |
bakin karfe | Titanium calcium irin | E307-16, E308-16, E308L-16, E309-16, E309H-16, E309L-16, E309LMo-16, E310-16, E310Mo-10, E310Mo-10,6E-1 -16, E317- 16, E317L-16, E318-16, E320-16, E347-16, E385-16, E410-16, E410NiMo-16, E2209-16,16E2307-16E2307-15 E2594-16. E2595-16 | 300-350 ℃ | 60 min |
bakin karfe | Low nau'in hydrogen | 308, 309, 310, 316, 347, 385, 507, 2209, 2553, 2593, 2594, 2595 | 300-350 ℃ | 60 min |
Lokacin aikawa: Oktoba-13-2022