1. Cov khoom sib txawv ntawm qhov sib txawv
Q:Cov ntaub ntawv qib sib txawv li cas ntawm cov kav dej idler thiab cov kav dej txheem?
A:
Idler Pipes:
Premium carbon steels (ASTM A53 Qib B, DIN 2391 St52) nrog tswj S / P Tsawg dua lossis sib npaug li 0.04% rau weldability.
Yeem Cr-Mo alloys (4140) rau kev siv mining.
Standard Pipes (piv txwv li, ASTM A106 / A53 Qib A):
Cia siab dua S/P ( Tsawg dua lossis sib npaug li 0.05%) thiab qis Mn cov ntsiab lus ( Tsawg dua lossis sib npaug li 1.0%).
Tsis tshua siv cov hlau alloy tshwj tsis yog rau kev tsim qauv.
Ntsiab Lus:Idler kav muab qhov tseem ceeb ntawm kev hnav tsis kam tshaj tus nqi ua haujlwm.
2. Dimensional Tolerances
Q:Vim li cas idler yeeb nkab tolerances nruj dua?
A:
| Parameter | Idler Pipes | Cov kav dej txheem |
|---|---|---|
| OD Tolerance | ± 0.5% (ISO 13934) | ± 1.0% (ASTM A530) |
| Phab ntsa Variation | Tsawg dua lossis sib npaug li 7% | Tsawg dua los yog sib npaug li 10% |
| Kev ncaj | Tsawg dua los yog sib npaug li 0.3 mm / m (seamless) | Tsawg dua lossis sib npaug li 1.0 mm / m |
Kev cuam tshuam:Misalignment nyob rau hauv cov kav dej idler nce txoj siv sia mus txog 30%.
3. Kev Kho Hniav Deg
Q:Ua li cas deg finishes piv?
A:
Idler Pipes:
Yuav tsum tau galvanizing (80-100 µm Zn) lossis epoxy txheej (200-300 µm).
Sab hauv polishing (Ra Tsawg dua lossis sib npaug li 1.6 µm) rau kev txo qis kev sib txhuam.
Cov kav dej Standard:
Feem ntau liab qab lossis nrog cov tshuaj tiv thaiv- xeb (5–20 µm).
Tsis muaj kev ua tiav sab hauv tshwj tsis yog rau cov ntawv thov huv.
2025 Trend:Nano-cov txheej txheem ceramic tshwm sim rau cov kav dej hauv cov cement.
4. Kev Tswj Xyuas Zoo
Q:Cov kev ntsuam xyuas ntxiv dab tsi ua rau cov kav dej idler raug?
A:
Idler Pipes:
100% ultrasonic kuaj (UT) rau ISO 10893-1.
Hardness mapping (3-5 ntsiab lus rau ib lub yeeb nkab) kom ntseeg tau tias hnav tsis kam.
Cov kav dej Standard:
Batch xeem (xws li, 10% hydrostatic tests ib ASTM A530).
Kev tshuaj xyuas qhov muag yog qhov tseem ceeb rau kev siv tsis yog - tseem ceeb.
Ntawv pov thawj:Idler kav yuav tsum tau ISO 9001 + kev lag luam- cov cim tshwj xeeb xws li CMS 70: 2022 (Conveyor Manufacturing Standard).
5. Tus nqi & Lub neej kev sib piv
Q:Vim li cas cov kav dej idler kim dua?
A:
| Qhov xwm txheej | Idler Pipes | Cov kav dej txheem |
|---|---|---|
| Tus nqi pib | $800–1,200/ton | $600–900/ton |
| Lub neej ntev | 5-8 xyoo (tseem ceeb) | 2-3 xyoos (tsim qauv) |
| Tus nqi poob | High (conveyor downtime) | Tsawg (hloov tau) |
