Imikhiqizo
Ipayipi Lokushisa Eliphansi (A333 A334 Gr.6 Gr.3)
AMAPHAYIPHA OKUSHISA OKUPHANSI
Amapayipi Osayizi--1/4” Okuqanjwayo kuya ku-42”OD
Ukuqina Kwezindonga - Isheduli 10 ukuya ku-XXH
Izinsimbi zekhabhoni ezinezinga lokushisa eliphansi ziye zathuthukiswa ikakhulukazi ukuze zisetshenziswe emishinini yezinga lokushisa eliphansi futhi ikakhulukazi emikhunjini yokucindezela eshiselwe.
Ziyi-low-to medium-carbon (0.20 kuya ku-0.30%), i-high-manganese (0.70 kuya ku-1.60%), i-silicon (0.15 kuya ku-0.60%) izinsimbi, ezinokwakheka okusanhlamvu okuhle nokuhlakazeka kwe-carbide efanayo.Afaka amandla amaphakathi anokuqina okufika ku-—50°F (—46°C).
Ukuze kuthuthukiswe okusanhlamvu kanye nokuthuthukisa ukwakheka nokushisela, izinsimbi zekhabhoni zingaqukatha u-0.01 kuya ku-0.04% we-columbium.Abizwa ngokuthi ama-columbium steels, asetshenziselwa amashafti, ama-forging, amagiya, izingxenye zomshini, nama-dies namageji.Kufika ku-0.15% sulphur, noma 0.045 phosphorus, kubenza babe machining mahhala, kodwa kunciphisa amandla.
I-LTCS iyinsimbi yamapuleti ensimbi esekelwe ku-Nickel ikakhulukazi asetshenziselwa izicelo zokushisa eziphansi ngezansi - 150 deg F. Isetshenziswa kakhulu ekwakheni imikhumbi yasemkhathini ye-cryogenic, ukusetshenziswa kwezinga lokushisa eliphansi endaweni yamakhemikhali ngaphansi kuka -55 deg C.
I-SA-203 Steel Plate Amabanga A, B, D, E kanye ne-F Nickle Alloy Steel Plates.Okwamazinga okushisa aphansi (-150 deg F)
Izinga Lokushisa Eliphansi I-Carbon Steel Tubes ASTM A334 Gr.1
I-ASTM A333——Ipayipi Lensimbi Elingenamthungo futhi Elishiselwe Yesevisi Yezinga Lokushisa Eliphansi:
Ikakhulukazi Ibanga
Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11;
Izinga lokushisa eliphansi le-carbon steel pipe elicisha izinga lokushisa ku-A3 + (30 ~ 50) ℃, ekusebenzeni, livame ukusethwa kumkhawulo ophezulu.Ipayipi lokushisa lokushisa eliphezulu lokucisha lingenza isivinini esiphansi, ukunciphisa i-oxidation ebusweni, futhi lingathuthukisa ukusebenza kahle komsebenzi.I-workpiece iyi-austenite efanayo, izodinga isikhathi esanele sokubamba.Uma umthamo wangempela wesithando somlilo ofakiwe, uzodinga ukufaneleka ukunweba isikhathi sokubamba.Uma kungenjalo, kungase kube nobulukhuni obanele ngenxa yokushisa okungalingani okubangelwa isenzakalo.Kodwa-ke, isikhathi sokubamba side kakhulu, kuzovela nezinhlamvu ezimahhadla, i-oxidation kanye ne-decarbonization izinkinga ezingathi sína ezithinta ikhwalithi yokucisha.Sikholelwa ukuthi uma isithando somlilo esifakiwe sikhulu kunamadokhumenti enqubo, isikhathi sokubamba sokushisa sizonwetshwa ngo-1/5.
Izinga lokushisa eliphansi le-carbon steel pipe ngenxa yokuqina okuphansi, kufanele lisebenzise izinga lokupholisa elikhulu lesisombululo sikasawoti esingu-10%.I-workpiece emanzini, kufanele ibe lukhuni, kodwa hhayi ebandayo, uma 45 # ukunemba kwensimbi epholile ku-brine, kungenzeka ukuqhekeka kwe-workpiece, lokhu kungenxa yokuthi uma ucezu lokusebenzela lupholile cishe ku-180 ℃, i-austenite iguqulwa ngokushesha ibe umzimba wehhashi. izicubu ezibangelwa ukucindezeleka ngokweqile ngenxa.Ngakho-ke, lapho insimbi yokucisha neyokushisa ipholisa ngokushesha kuleli banga, indlela kufanele ithathwe ukuze kunciphe ukupholisa.
Njengoba izinga lokushisa lamanzi linzima ukuliqonda, isipiliyoni sokuziphendulela ekusebenzeni, lapho amanzi eyeka ukuhlukanisa izinto zobuciko, ungakwazi ukuchelela ngokupholile (isib. isipholile sikawoyela singaba ngcono).Ngaphezu kwalokho, i-workpiece emanzini, isenzo esifanele kufanele namanje kube ngokuhambisana geometry we workpiece, njengoba umsebenzi ovamile.Umshini wokupholisa omile kanye nocwecwe lokusebenza olunganyakazi, okuholela ebukhuni obungalingani, ingcindezi engalingani ishiya ukuwohloka okukhulu kwendawo yokusebenza, ngisho nokuqhekeka.
