Flange PMI Testing yog dab tsi?
Kev txheeb xyuas cov khoom zoo.
Kev kuaj xyuas cov khoom zoo (PMI) yog dab tsi?
Kev ntsuam xyuas cov khoom zoo (PMI) yog kev ntsuam xyuas ntawm cov khoom siv, feem ntau yog cov hlau alloy, kom paub meej tias cov khoom siv raws li tus neeg siv qhov kev thov. Feem ntau, qhov no yog ua tiav siv ib lossis ntau dua ntawm peb txoj kev sim: Handheld XRF, Handheld LIBS, lossis Portable OES. Cov txheej txheem xeem no txiav txim siab cov tshuaj muaj pes tsawg leeg ntawm cov hlau thiab sib xyaw cov chemistry mus rau lub tsev qiv ntawv qib alloy los muab cov lej ID qib alloy raws li qhov tshwm sim.
Raws li kev sim tsis muaj kev puas tsuaj (NDT) txoj hauv kev rau kev tshuaj xyuas cov khoom sib xyaw ntawm cov hlau thiab cov hlau, PMI kev sim yog qhov ua tau zoo tshaj plaws los ntsuas cov khoom loj ntawm txhua lub ntsiab lus ntawm cov khoom siv hlau.
Kev ntsuas PMI rau cov hlau thiab alloys
Kev txiav txim siab qhov tseeb muaj pes tsawg leeg thiab qib ntawm ib qho alloy ua rau txhua tus neeg nyob hauv cov khoom xa tuaj kom phim cov ntsiab lus. Cov neeg uas tuaj rau hauv kev saib xyuas ntawm cov ntaub ntawv raws li cov saw hlau muaj xws li cov chaw muag khoom, cov neeg xa khoom, cov neeg ua haujlwm hauv chaw tsim khoom, cov chaw tsim khoom, thiab lwm lub luag haujlwm.
Lwm yam khoom uas lub alloy tuaj yeem kuaj tau yog:
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kub tsis kam
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durability
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corrosion kuj
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nto kab mob
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kev xav
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nplej ntws
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weld kev tsim nyog
Nyob ntawm seb cov hlau yuav siv li cas, lwm yam kev ntsuas tsis muaj kev puas tsuaj tuaj yeem ua tau.
Alloy tshuaj muaj pes tsawg leeg
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias txhua lub alloy muaj nws tus kheej daim ntawv qhia thiab muaj ntau pua cov ntaub ntawv nyob rau hauv txhua pawg alloy.
Lub hom phiaj ntawm cov pab pawg alloy yog categorize sib txawv compositions ntawm hlau. Piv txwv li, ib qho alloy ntawm npib tsib xee nrog ib feem peb ntawm tooj liab paub tias tiv thaiv corrosion los ntawm seawater, qee cov kua qaub, thiab ntau yam tshuaj koom nrog hauv kev ua tshuaj thiab petrochemical.
Nov yog qee qhov piv txwv ntxiv ntawm pawg alloy:
- Thaum tshav kub kub-resistant alloystag nrho cov muaj nickel thiab chromium nyob rau hauv thiaj li yuav tiv taus kev khiav hauj lwm kub.
- Corrosion-resistant alloys- zoo li qhov kuv tau hais los saum toj no - tshwj xeeb yog siv rau hauv kev lag luam chemicals, corrosive waters, pollution control, food and drink processing, and more corrosive environment.
- Tshwj xeeb alloyssib txawv nyob rau hauv muaj pes tsawg leeg thiab cov khoom. Lawv nyob ua ke ua ke vim tias lawv cov khoom siv hluav taws xob nyob ntawm cov khoom siv hluav taws xob (thermal, magnetic, hluav taws xob) thiab tsis tas yuav muaj corrosion-resistant lossis lub zog.
Unified Numbering System (UNS) rau cov hlau thiab alloys yog cov txheej txheem rau kev tsim cov khoom sib xyaw rau pawg.
Vim li cas kev txheeb xyuas cov khoom zoo tseem ceeb?
nws yog hais txog qhov zoo tshaj profitability.
Kev kuaj PMI kom zoo tiv thaiv kev tuag
Yog tias tsuas yog ib feem ntawm cov hlau tsis zoo tuaj yeem ua rau lub foob pob hluav taws loj, xav txog kev puas tsuaj rau cov hlau tsis zoo tuaj yeem ua rau qhov loj dua.
Thaum twg yuav tsum kuaj PMI?
Qhov zoo tshaj plaws, kev txheeb xyuas cov khoom zoo yuav tsum tau tswj xyuas txhua zaus cov hlau hloov tes mus thoob plaws hauv cov khoom siv.
Cov khoom siv hlau
Cov saw hlau rau txhua yam khoom siv tau dhau los ua wildly complex. Tias yog vim li cas cov neeg siv khoom tau nyiam ntau dua nyob rau qhov twg lawv cov khoom lossis cov khoom noj los ntawm.
Cov hlau tsis txawv. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau ua qhov kev ntsuam xyuas PMI ntawm txhua qhov chaw ntawm cov khoom siv.
Cov ntsiab lus ntawm cov khoom siv hlau tuaj yeem suav nrog:
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khib nyiab rau qhov chaw tsim khoom,
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foundry rau qhov chaw fabricator,
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fabricator rau refinery los yog dav hlau,
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thiab tshuaj xyuas cov khoom hauv kev pabcuam thaum muaj kev saib xyuas lossis kev kuaj xyuas kev nyab xeeb.
