I-alloy ekumgangatho ophezulu kunye neetyhubhu zentsimbi zekhabhoni kwiityhubhu zebhoyila zoxinzelelo oluphakathi kunye noxinzelelo oluphantsi
I-alloy ekumgangatho ophezulu kunye neetyhubhu zentsimbi zekhabhoni zoxinzelelo oluphakathi kunye noxinzelelo oluphantsi lwebhoyibhubhu,
GB/T 3087 10#,
Isishwankathelo
Isicelo
Isetyenziswa ikakhulu ukwenza umgangatho ophezulu wekhabhoni yentsimbi, umbhobho webhoyila woxinzelelo oluphantsi, umbhobho oshushu oshushu kakhulu ongenamthungo wecarbon.
IBanga eliPhambili
Ibakala eliphezulu carbon yesakhiwo steel: 10 #,20 #
ICandelo leMichiza
| Umgangatho | IBanga | Ukwakhiwa kwemichiza(%) | |||||||
| C | Si | Mn | P | S | Cr | Cu | Ni | ||
| GB3087 | 10 | 0.07-0.13 | 0.17-0.37 | 0.38-0.65 | ≤0.030 | ≤0.030 | 0.3-0.65 | ≤0.25 | ≤0.30 |
| 20 | 0.17-0.23 | 0.17-0.37 | 0.38-0.65 | ≤0.030 | ≤0.030 | 0.3-0.65 | ≤0.25 | ≤0.30 | |
IPropati yoomatshini
| Umgangatho | Umbhobho wentsimbi | Ubunzima bodonga | Tensile strength | Unikeze Amandla | Ukwandisa |
| GB3087 | (mm) | (MPa) | (MPa) | % | |
| ≥ | |||||
| 10 | / | 335-475 | 195 | 24 | |
| 20 | ＜15 | 410-550 | 245 | 20 | |
| ≥15 | 225 | ||||
Ukunyamezelana
Ukuphambuka okuvumelekileyo kwedayimitha yangaphandle yeetyhubhu zetsimbi
| Uhlobo lwetyhubhu yentsimbi | Ukutenxa okuvumelekileyo | ||||||
| I-Hot rolled (extruded, eyandisiweyo) ityhubhu yentsimbi | ± 1.0% D okanye ± 0.50, thatha inani elikhulu | ||||||
| Ityhubhu yentsimbi ebandayo (iqengqiwe). | ± 1.0% D okanye ± 0.30, thatha inani elikhulu | ||||||
Ukutenxeka okuvumelekileyo kobukhulu bodonga lwemibhobho yentsimbi eshushu (i-extrusion, isandiso)
Iyunithi: mm
| Uhlobo lwetyhubhu yentsimbi | Idayimitha yangaphandle yetyhubhu yentsimbi | S/D | Ukutenxa okuvumelekileyo | ||||||
| ityhubhu yentsimbi eshushu iqengqeleke (extruded). | ≤ 102 | - | ± 12.5 % S okanye ± 0.40, thatha inani elikhulu | ||||||
| > 102 | ≤ 0.05 | ± 15% S okanye ± 0.40, thatha inani elikhulu | |||||||
| > 0.05 ~ 0.10 | ± 12.5% S okanye ± 0.40, thatha inani elikhulu | ||||||||
| > 0.10 | + 12,5% S | ||||||||
| - 10% S | |||||||||
| ityhubhu yentsimbi eshushu yandisa | + 15% S | ||||||||
Ukuphambuka okuvumelekileyo kodonga lodonga lwemibhobho yentsimbi ebandayo (eqengqiwe).
Iyunithi: mm
| Uhlobo lwetyhubhu yentsimbi | Ubunzima bodonga | Ukutenxa okuvumelekileyo | ||||||
| Ityhubhu yentsimbi ebandayo (iqengqiwe). | ≤ 3 | 15 – 10 % S okanye ± 0.15, thatha inani elikhulu | ||||||
| > 3 | + 12,5% S | |||||||
| - 10% S | ||||||||
Imfuneko yoVavanyo
Uvavanyo lokucaba
Iityhubhu zentsimbi ezinobubanzi obungaphezulu kwe-22 mm ukuya kutsho kwi-400 mm, kunye nobukhulu bodonga obungaphezulu kwe-10 mm kufuneka zenze uvavanyo lokucaba. Emva kokuba iisampulu zityatyekwe
Ukugoba uvavanyo
Iityhubhu zentsimbi ezinobubanzi obungaphandle obungekho ngaphezulu kwe-22 mm kufuneka zingene kuvavanyo lokugoba. I-engile yokugoba yi-90o. I-radius yokugoba ngamaxesha angama-6 ububanzi bangaphandle bombhobho wensimbi.Emva kokugoba isampuli, akukho kuphazamiseka okanye ukuqhekeka kuvunyelwe ukuba kubonakale kwisampuli.
Uviwo lweMacroscopic
Kwiityhubhu zentsimbi ezenziwe ngokuthe gqolo ngokuphoswa kweebhilidi okanye ii-ingots zentsimbi, iqela elinikezelayo kufuneka liqinisekise ukuba akukho mabala amhlophe, ukungcola, amaqamza omoya angaphantsi komhlaba, amabala okakayi okanye ukwaleka kwi-asidi evutshiweyo ye-macroscopic tissue ye-billet okanye ityhubhu yentsimbi.
Ukuhlolwa okungonakalisi
Ngokwesicelo seqela elifunayo, elithe ke lixoxisana phakathi kwamaqela anikezelayo kunye nalawo afunayo kwaye aboniswe kwisivumelwano, ukufumanisa impazamo ye-ultrasonic inokwenziwa ngabanye kwiityhubhu zetsimbi. I-longitudinal manual defect ye-tube yesampuli yereferensi kufuneka ihlangabezane neemfuno zokwamkelwa emva kokuhlolwa kwebakala C8 elichazwe kwi-GB / T 5777-1996.
Iinkcukacha zeMveliso
Umbhobho weBoiler woxinzelelo oluphezulu
GB/T5310-2017
ASME SA-106/SA-106M-2015
I-ASTMA210(A210M)-2012
ASME SA-213/SA-213M
I-ASTM A335/A335M-2018
Sine-stock high quality alloy steel kunye ne-carbon steel tubes kwi-boiler tubes ephakathi kunye nephantsi, enokuthi ihanjiswe ngokukhawuleza ukuqinisekisa umgangatho kunye nokufika ngexesha elifanelekileyo lempahla.
