Yuav ua li cas kom paub tseeb tias 316 stainless hlau tiv taus ntsev tsuag rau 2000 teev?
Tso lus
Yuav ua li cas txheeb xyuas qhov tseeb ntawm "316 stainless hlau tiv taus ntsev tsuag rau 2000 teev"?
Yuav tsum tau muab daim ntawv qhia kev xeem
Tus neeg xa khoom yuav tsum muab cov tshuaj ntsev xeem ntawv ntsuam xyuas raws li Astm B117 lossis tus qauv GB / tsis muaj xeb (xws li CNAS, kev ua ntawv pov thawj CMAs).
Tsom rau kev kuaj xyuas lub "thawj zaug xeb ntev yuav tsuas muaj cov khoom dawb dawb (oxidation dawb (oxidation khoom) tsis pub dhau 2000 teev (thiab tsis muaj xeb liab (hlau latrix corrosion).
Kev ntsuas me me ntsuas ntsuas tau tseeb
Noj 3-5 Cov qauv me me ua ntej kev yuav khoom, thiab tso cai rau kev kuaj seb peb yuav tsum ua tes txau thib peb:
Txiav 10cm × 10CM daim hlau, tshem tawm cov roj saum npoo thiab kuaj;
If pitting pits with a diameter of >1 hli tshwm nyob rau hauv 1000 teev, nws yuav raug txiav txim ncaj qha tsis tsim nyog (nws yuav tsawg molybdenum lossis cuav 316).
Feem tivthaiv traceability thiab spectral nrhiav tau
Cov tshuaj txau ntsev tsis ncaj qha cuam tshuam txog cov ntsiab lus molybdenum: MO}}}}}}}}} Cov nqi tiag tiag ntawm "316" yuav raug txo ntau dua)
Ntsev Tshuaj Kuaj Cov Ntaub Ntawv Sib Piv (ASTM B117)
| Khoom | Kuaj tshwm sim | Raug tsis hauj lwm hom | Daim Ntawv Thov Kev Pab Cuam |
|---|---|---|---|
| 316 Stainless Hlau | 2000-3000 teevTsis muaj xeb liab; me ntsis dawb xeb (muab) tom qab 2000 teev | Me ntsis dawb xeb (oxidation khoom), tsis muaj substrate corrosion | Tubrog Nkoj, Tshuaj lom neeg, thiab cov ntsev ntau av |
| 304 Stainless Hlau | Dawb xeb tshwm sim ntawm 500-1000 teev; RU RU RU ntawm 1500 teev | Pitting corrosion thiab perforation (ntawm clj> 5000ppm) | General atmospheric thiab cov chaw noj zaub mov |
| Carbon Steel (piv txwv li, Q235) | Liab xeb tshwm ntawm 24-48 teev; Perforation tom qab 100 teev | Cov xeb ntau dhau thiab ua kom nrawm | Sab hauv tsev qhuav (yuav tsum tau yuam kev kho corrosion) |
