01.Material Yuav tsum tau
①Base cov khoom siv
Qeb dav hlau yuav tsum ua raws li en - gjs-500-7 (EU qauv) lossis QT500-7 (Suav txheej txheem).
Nyob rau hauv lub ntsuas phoo ntawv, cov kev lom zem yuav tsum loj dua lossis sib npaug ntawm 90%, thiab graphite pob loj yuav tsum yog qib A247).
| ②chemical muaj pes tsawg | |
| Lub ntsiab | Cov Qauv Qeb |
| Carbon, c | 3.6%~3.9% |
| Silicon, si | 2.2%~2.8% |
| Manganese, mn | Tsawg dua los yog sib npaug rau 0.3% |
| Sulphur, s | Tsawg dua los yog sib npaug rau 0.02% |
| Phosphorus, p | Tsawg dua los yog sib npaug rau 0.05% |
| Magnesium, mg | 0.03%~0.06% |
③harmful Elements tswj
Tag nrho cov ntsiab lus ntawm cov kev phom sij xws li txhuas (PB), chromium (CR), thiab tin (sn) yuav tsum yog<0.1%.
02.mechanical Khoom
Tensile lub zog loj dua los yog sib npaug rau 500 MPa (ib ISO 6892-1).
Tos lub zog ntau dua los yog sib npaug rau 300 MPa (ib ISO 6892-1).
Elongation ntau dua los yog sib npaug rau 7% (gauge ntev 50mm).
Brinell Hardness 130 ~ 180 HBW (ib ISO 6506-1).
03.Qhov ntev thiab kev ua kom muaj kev puas tsuaj
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Txoj kab uas hla thiab phab ntsa tuab
Sab nraud ntawm txoj taub kam kam rau: ± 1.0% rau dn8000, ± 1.5% rau DN700 (ib qho ntxiv rau 545).
Phab ntsa thickness kam kam: ± (0.1t+ 0.5 mm), qhov twg t yog nominal tuab (ib ISO 2531).
04.Surace Kev Kho Mob thiab Txheej Txheej
Sab nraud anti - corrosion txheej
Zinc Txheej ntau dua lossis sib npaug ntawm 130 g / m² (txau lossis kub - dip, ib ISO 8179-1).
Sab nraud anti - corrosion txheej
Bitumen coating Thickness ntau dua lossis sib npaug rau 70μm, pub dawb los ntawm npuas thiab tev.
Cov khoom siv hauv ob sab
Cesas colle tawm thickness loj dua los yog sib npaug rau 3mm, pH nqi 9 ~ 11 (ib ISO 4179).
Cov khoom siv hauv ob sab
Epoxy Txheej Tuab Zaj Duab Xuab Thickness ntau dua los yog sib npaug rau 250μm, kev ntsuas adhesion dhau (ib qho ISO 2409).
05.Soj ntsuam thiab kuaj
Tsis - kev sim tshuaj ntsuam (ndt)
Kev sim ultrasonic (UT) tag nrho - lub cev scan, kho qhov tob<5% of wall thickness (per EN 10308).
RadioGraphic Xeem (RT) Hnov {{}}}}}}}}} Kos rau ntawm Welds, raws li nrog iso 4998 chav kawm B.
Siab Ntsuas
Raws li ISO2531 {-}}}}}}}}}}}
06.Cim thiab Cov Ntaub Ntawv
Cov Hluav Taws Xob
Laser Marking: Hnub ua haujlwm ntau lawm, tus lej xov tooj, txheem code (piv txwv li, en 545).
Cov khoom xeem ntawv (MTC), Daim Ntawv Qhia Kev Tshuaj Xyuas, Cov Npe Puam, daim ntawv pov thawj ntawm keeb kwm.
07.Ntim thiab Thauj Khoom
Anti - xeb ntim
Kev tiv thaiv cov yeeb nkab kawg: kaw nrog yas kawg lub kaus mom.
Noog noo - Ua pov thawj zaj duab xis qhwv tag nrho cov yeeb nkab.
Kev xa khoom
Raws li kev xa khoom lossis cov thawv ntim khoom: Raws li kev txiav txim kom muaj nuj nqis thauj khoom ntawm qhov kev txiav txim uas feem ntau yuav siv cov kav dej ntawm cov khoom siv ntev ntawm 5.7 meters.
Shanxi Jintaihonganye Casting & Forging & Tuam Txhab, yog ib qho ntawm cov thawj coj, ntau yam li qub, siv ntau yam khoom siv ntau yam khoom muaj roj ntau.
Xav paub ntau ntxiv, thov hu rau peb: Whatsapp / WeChat: +86 18334738900
Email chaw nyob: info@jthypipe.com; jthypipeamy@126.com