Client Background
HauvQ3 2025, peb tau txais kev nug los ntawm aKarachi-raws li marine engineering cog luskoom nrog hauv kev kho dua tshiab ntawm seawater pipeline systems rau ib qhov project shipyard hauv zos.
Cov neeg siv khoom yav dhau los tau muab cov khoom siv tooj dag hauv zos tab sis ntsib:
Cov teeb meem corrosion ntxov ntxov
Cov khoom siv tsis sib xws
Tsis muaj ntawv pov thawj tsim nyog
Lawv tau tshwj xeeb nrhiav ib tugtxhim khu kev qha txawv teb chaws tsumleej twg tuaj yeem ntsibEN / ASTM cov qauv nrog tag nrho traceability.
Initial Inquiry Paub meej
Thawj RFQ suav nrog cov kev xav tau meej meej heev:
Khoom siv: CW712R / C46400 Naval tooj dag
Txoj kab uas hla:3.125 "(79.375 hli)
Tag Nrho Length:130 m
Kwv yees qhov hnyav:~ 6 tons
Daim ntawv thov:Seawater valve thiab ncej Cheebtsam
Kev txhawj xeeb ntawm cov neeg siv khoom
Tus neeg siv khoom tau hais txog:
"Cov ntaub ntawv yav dhau los ua tsis tiav vim cov ntsiab lus tin tsawg thiab cov porosity sab hauv."
Qhov no yog ibqhov tseeb tiag tiag - teeb meem ntiaj tebnyob rau hauv marine tooj dag qhov chaw, tshwj xeeb tshaj yog los ntawm qis -cov khoom zoo.
Peb Kev Ntsuam Xyuas Engineering
Tom qab tshuaj xyuas qhov kev nug, peb pawg kws tshaj lij tau txheeb xyuas ob lub ntsiab lus tseem ceeb:
1. Tin (Sn) Cov ntsiab lus ruaj khov
Peb kho melting parameter kom nruj tswj:
Sn:0.95% - 1.05% (nruj ntau yam es tsis txhob dav spec)
Qhov no tau ua kom tiav:
ruaj khov corrosion kuj
Txhim kho txoj sia nyob hauv dej hiav txwv
2. Internal Structure Control
Rau loj - txoj kab uas hla (79.375 mm), peb siv:
Tswj kub extrusion piv
Kev ua kom txias qeeb qeeb
Qhov no txo:
Sab hauv porosity
Segregation defects
Kev tsim khoom & Cov ntaub ntawv zoo
Production Batch No.:NB2025-08-KHI
Melting Rauv:8-tuj induction rauv
Tag nrho cov tsim tawm:6.35 MT (nrog rau txiav nyiaj)
| Cov khoom kuaj | Kev tshwm sim |
|---|---|
| Tensile zog | 415 MPa rau |
| Elongation | 18% |
| Hardness | HB 110 |
| Ultrasonic tshuab | Tsis muaj qhov tsis xws luag |
| Tshuaj Sn | 0.98% |
Tag nrho cov txiaj ntsig tau sau tseg hauv:
EN 10204 3.1 Mill Test Certificate
Cov ntaub ntawv soj ntsuam sab hauv
Ntim & Xa khoom
Peb ntim cov rods hauv:
Fumigated ntoo crates
Plastic sab hauv + anti-moisture wrapping
Hlau Stripping reinforcement
Shipping Paub meej
Chaw nres nkoj ntawm Loading:Shanghai
Qhov chaw:Chaw nres nkoj Karachi, Pakistan
Incoterm:C&F (Incoterms 2020)
Ntim:1 × 20GP
ncua sij hawm
Ntau lawm: 17 hnub
Kev lis kev cai & thauj khoom: 3 hnub
Kev hla hiav txwv: 24 hnub
✔ Tag nrho cov khoom xa tuaj: 44 hnub
Ntawm -Site Feedback
Tom qab kev teeb tsa, tus neeg siv khoom tau muab cov lus qhia:
Machining kev ua tau zoo: du, tsis muaj cracking
Dimensional raug: Nyob rau hauv kam rau ua
Deg mob: huv si, tsis muaj oxidation
Qhov tseem ceeb tshaj plaws:
"Cov ntaub ntawv dhau qhov siab thiab kev kuaj corrosion tsis muaj teeb meem."
Daim ntawv thov Scenario
Cov khoom siv rods tau siv rau hauv:
Seawater valve stems
Marine ncej Cheebtsam
Pump txuas qhov chaw
Cov no yogsiab - ib puag ncig kev pheej hmoo, xav tau:
Anti-dezincification zog
Ntev - lub sij hawm corrosion kuj
FAQ
1. Dab tsi ua rau naval tooj dag tsis ua haujlwm nyob rau hauv ib puag ncig marine?
Cov ntsiab lus tin tsawg thiab cov teeb meem sab hauv tuaj yeem ua rau muaj kev xeb sai thiab kev ua haujlwm tsis zoo.
2. Koj ua li cas kom zoo rau C46400 rods?
Peb tswj cov tshuaj muaj pes tsawg leeg, ua ultrasonic kuaj, thiab muab EN 10204 3.1 ntawv pov thawj.
3. Koj puas tuaj yeem muab cov kab loj loj naval tooj dag pas nrig?
Yog lawm, peb tuaj yeem tsim tau txog li 200 hli txoj kab uas hla nrog cov qauv ruaj khov.
4. Lub sij hawm xa tuaj rau Pakistan yog dab tsi?
Feem ntau 40-45 hnub suav nrog kev tsim khoom thiab xa khoom.
Tiv tauj peb
Yog tias koj muab khoomCW712R / C46400 Naval Brass Rodsrau marine lossis industrial siv:
Peb tuaj yeem pab koj zam cov teeb meem tib yam uas tus neeg siv khoom no ntsib.
📩 Xa koj RFQ hnub no rau:
Cov lus ceev ceev
Kev txhawb nqa
ruaj khov khoom
