1. General Phab Ntsa Thickness Zam Txoj Cai
Tubes nrog rau sab hauv lub cheeb ntau dua lossis sib npaug rau 73 hli
Phab Ntsa Thickness<20mm: tolerance +15% / -12.5%.
Phab ntsa tuab ntau dua lossis sib npaug rau 20 hli: kev ua siab ntev {1}}. 5% / {}}}%.
Kub-Nthuav Cov Hlau Leeg
Kev kam ntawm phab ntsa tuab yog ± 15%.
2. Ntxiv kev pab rau cov phab ntsa tshwj xeeb
Nyias-walled hlab (phab ntsa thickness tsawg dua li lossis sib npaug rau 0. 10 hli)
Kev thev siab yog qhov ntau dua ntawm ± 12.5% lossis 0. 40mm. 40 hli.
3. Cov piv txwv ntawm kev thev taus cov kev suav
| Od (hli) | Wt (hli) | Kev thev naus laus zis |
|---|---|---|
| 73 | 10 | {{0 {0}}. 5mm / -1. 25mm |
| 219.1 | 25 | {{0 {0}}. 375mm / -2. 5mm |
4. Lwm cov cai tseem ceeb
Kev tsis sib thooj thiab cov phab ntsa tuab tsis sib xws: tsis ntau tshaj 80% ntawm kev ua siab ntev ntawm txoj kab uas hla thiab phab ntsa tuab.
Yeeb nkab kawg txiav plaub hau: rau cov kav dej steel nrog od tsawg dua lossis sib npaug ntawm 60 hli, cov yeeb nkab kawg txiav kev txiav yuav tsum tsis txhob muaj ntau tshaj 1.5mm.
Lub ntsiab
Lub Phab Ntsa Thiaj Thickness kam rau ntawm Api 5L yog dynamically hloov raws li cov txheej txheem sab nraud, phab ntsa thickness thiab kev tsim khoom kub) ntawm cov leeg hlau, thiab cov cai tseem ceeb yog:
{{0 {0}}% / -12. 5% rau cov phab ntsa tuab<20mm for OD ≥73mm; +17.5%/-10% for wall thickness ≥20mm. For wall thickness ≥20mm, +17.5%/-10% is applied.
Rau kub-nthuav dav cov raj ib yam tsis zoo ± 15% siv.
