Cov kauj ruam tseem ceeb hauv P22 Cov yeeb nkab tau ua dab tsi?
Ua ntej, cov hlau billet yog smelted los ntawm cov hluav taws xob hluav taws xob lossis hloov pauv kom tswj tau cov lej sib xyaw. Tom qab ntawd nws yog tsim los ntawm kub dov lossis cov txheej txheem kos khaub thuas kom ntseeg tau tias muaj kev zam sab. Kev kho cua sov muaj li normalizing (900-950 degree) thiab tempering (650-750 degree) kom rov qab nplej. Thaum kawg, kev sim ua kom tsis txhob ua kev puas tsuaj (xws li ultrasonic) thiab nto kev kho mob yog nqa tawm. Txhua theem yuav tsum ua raws li Astm A335 cov qauv los xyuas kom zoo.
Dab tsi ua rau kev coj ua thiab tempering muaj nyob rau hauv kev ua yeeb yam ntawm P22 Yeeb Nkab?
Kev ua haujlwm ib txwm muaj kev cuam tshuam nrog kev ntxhov siab sab hauv thiab cov qauv zoo li qub, txhim kho kev txhim kho thiab lub zog. Tempering ntxiv ntxiv txo cov hardness thiab txhim kho kev siv zog kom tsis txhob muaj nkig tawg. Kev sib xyaw ntawm ob tus tuaj yeem ua kom tau zoo tshaj plaws creep tsis kam thiab qaug zog. Kev tswj qhov kub thiab txias yog qhov tseem ceeb, thiab siab dhau yuav ua rau muaj kev muag khoom ntau dhau. Lub microstructure tom qab kev kho cua sov yuav tsum yog khaub ncaws loj lossis ntau dua.
Dab tsi yog qhov sib txawv ntawm khaub thuas khaub thuas kos thiab kub dov p22 kav hlau?
Kub-dov lub raj yog tsim nyob rau ntawm qhov kub thiab txias, nrog cov oxide teev rau saum npoo tab sis kev ua haujlwm siab ntau. Txias khaub hlab cov hlab muaj ntau dua qhov tseeb thiab zoo nto tiav, tab sis tus nqi yog siab dua. Kub-dov lub raj khaws cov kev ntxhov siab ntau dua thiab xav tau kev kho cua sov ntxiv. Txias-kos cov leeg yog qhov tsim nyog rau cov khoom siv kho tshuab hluav taws xob, thiab kub-rolled tubes feem ntau yog siv rau cov qauv loj. Qhov kev xaiv yog nyob ntawm cov kev xav tau ua tiav thiab siv nyiaj.
Yuav kho cov Welds ntawm P22 kav hlau ua cas los xyuas kom paub meej tias kev ua tau zoo?
Tom qab vuam, hauv zos lossis tag nrho cov kev ntxhov siab Lub vuam cov khoom yuav tsum phim cov khoom sib xyaw ntawm niam txiv cov khoom, xws li ER80S-B2 Vuam hlau. Preheating (200-300 degree) thiab interpass qhov kub tswj qhov kub tuaj yeem tiv thaiv cov kab nrib pleb. RadioGraphic lossis kev kuaj ultrasonic yog qhov yuav tsum tau tom qab vuam. Kev kho kom sov kub kuj tseem xav tau kev kho cua sov tom qab weld kom rov kho cov tshuaj tiv thaiv corrosion.
Yuav ua li cas kuaj pom tsis meej nyob rau P22 Cov Yeeb Nkab Hlau Raug?
Kev sim ultrasonic (tr) tuaj yeem tshawb pom sab hauv cov kab nrib pleb lossis kev suav nrog. EDDY kev sim tam sim no yog qhov haum rau saum npoo qhov ntsuas tsis taus. Qhov kev ntsuas dej siab rau kev hais txog lub siab kabmob muaj peev xwm, feem ntau yog 1.5 zaug tsim kev tsim. Meballgraphic Tsom cov tshev seb 'microstructure tau ua tau raws li cov qauv. Cov tshuaj lom neeg cov khoom siv tshuaj lom spectrometer ua kom muaj tseeb ntawm alloy piv.
