1. Lo lus nug: Dab tsi yog daim ntawv thov tseem ceeb ntawm cov nickel -raws li cov kav dej thiab cov kav dej?
Teb: Cov kav dej thiab cov raj no tau siv dav hauv kev ua tshuaj lom neeg, petrochemical, marine, tsim hluav taws xob, siab - qhov kub thiab txias, thiab corrosion- ib puag ncig. Lawv yog cov zoo tagnrho rau tuav cov kua qaub, chlorides, siab -kub kua, thiab corrosive media.
2. Nqe Lus Nug: Cov khoom tseem ceeb ntawm txhua lub alloy yog dab tsi?
Teb:
Hastelloy C276: Zoo heev tiv thaiv oxidizing thiab txo cov tshuaj, pitting, thiab kev nyuaj siab corrosion cracking.
Hastelloy C22: Zoo ib yam li C276 tab sis nrog kev tiv thaiv zoo rau oxidizing cov neeg ua haujlwm, zoo tagnrho rau cov tshuaj lom neeg hnyav.
Inconel 600/601/625: High oxidation thiab corrosion kuj, txhua yam muaj zog ntawm qhov kub thiab txias, haum rau lub cub tawg thiab tshuaj siv.
Monel (Ni-Cu alloys): Ua tau zoo heev rau hydrofluoric acid, alkalis, thiab marine corrosion, nrog rau cov khoom zoo.
3. Lo lus nug: Cov kav dej thiab cov kav dej no ua raws li cov qauv dab tsi?
Teb:
ASTM B163 / B444 / B622 / B 861 rau seamless kav thiab raj.
UNS cov lej rau kev txheeb xyuas cov alloy (xws li C276: N10276, C22: N06022, Inconel 625: N06625).
ISO lossis ASME cov ntawv pov thawj kuj tseem tuaj yeem siv rau kev lag luam lossis kev siv siab -siab.
4. Lo lus nug: Qhov zoo ntawm cov kav dej thiab cov kav dej no zoo li cas?
Teb:
Kev txheeb xyuas tshuaj muaj pes tsawg leeg rau kev txheeb xyuas cov alloy.
Mechanical tests: tensile zog, tawm los, hardness.
Tsis yog-kev kuaj kev puas tsuaj (NDT): ultrasonic, eddy tam sim no, los yog dye- kev ntsuam xyuas penetrant.
Mill Test Reports (MTRs) thiab daim ntawv pov thawj ntawm kev ua raws cai yog muab rau kev taug qab.
5. Lo lus nug: Yuav tsum tau ceev faj dab tsi thaum lub sij hawm installation thiab siv?
Teb:
Tsis txhob thermal shock thaum cua sov, vuam, lossis txias.
Ua kom muaj kev sib raug zoo, kev txhawb nqa, thiab kev ruaj ntseg cov pob qij txha hauv cov kav dej.
Tsis txhob sib cuag nrog cov hlau tsis sib xws kom txo qis galvanic corrosion.
Ua raws li cov chaw tsim khoom cov txheej txheem rau qhov siab tshaj plaws kev khiav hauj lwm kub thiab siab txwv.
