Kev Cai Cartridge Heater Engineering rau Kev Siv Tshwj Xeeb
Tso lus
Hauv kev ua tshuaj lom neeg thiab qee qhov kev tsim khoom noj, cov khoom siv cua sov raug rau cov kua qaub uas muaj zog lossis cov tshuaj caustic uas ua rau cov khoom siv hauv tsev sai sai. Kev ntxuav, etching, thiab tshuaj sib xyaw ua haujlwm uas suav nrog sulfuric acid, hydrochloric acid, sodium hydroxide, thiab phosphoric acid daws tuaj yeem ua rau muaj teeb meem corrosion uas xav tau cov khoom siv cua sov tshwj xeeb thiab kev ntsuas kev nyab xeeb. Txheem 304 stainless hlau sheaths muab rau hauv cov xwm txheej no hauv ib hnub lossis ob lub lis piam. Qhov no txhais tau hais tias yuav tsum tau xaiv cov khoom siv ceev faj nyob ntawm qhov tshwj xeeb raug cov kab mob.
Incoloy alloys yog qhov zoo dua ntawm kev tiv thaiv cov kua qaub dua li cov hlau tsis tu ncua, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej nrog cov nyiaj nruab nrab ntawm sulfuric thiab phosphoric acid ntawm qhov kub nruab nrab. Nickel pab tiv thaiv chloride kev nyuaj siab corrosion cracking, uas yog ib qho teeb meem nrog 300-series stainless hlau. Chromium pab tiv thaiv oxidation. Cov alloys no tuaj yeem ua rau me me mus rau nruab nrab acid theem txog li 100 ° C, yog li lawv tuaj yeem siv rau hauv ntau qhov kev lag luam tu thiab kev ua haujlwm uas cov ntaub ntawv tsis tu ncua tawg sai.
Los ntawm kev ua hauj lwm nrog electroplating thiab cov chaw kho deg, kuv paub tias titanium sheaths yog heev resistant rau oxidising acids zoo li nitric acid thiab muaj zog chloride daws uas yuav noj tam sim ntawd txawm siab -nickel alloys. Cov oxide txheej ntawm cov hlau tiv thaiv nws los ntawm pitting thiab crevice corrosion, uas yog teeb meem cuam tshuam rau stainless hlau. Tab sis vim tias titanium tsis xa cov cua sov ib yam, cov cua sov yuav tsum tau ua tib zoo saib xyuas kom lawv hloov cov cua sov txaus. Tsis tas li ntawd, titanium yog kim, yog li nws tsuas yog siv tau thaum lwm cov ntaub ntawv tsis ua haujlwm.
Kev sib piv ntawm cov hlau sheaths uas tsis yog -metallic tiv thaiv qhia tau hais tias muaj lwm txoj hauv kev los tiv thaiv cov mob hnyav heev. Quartz sheaths yuav luag tag nrho cov tshuaj tiv thaiv, tshwj tsis yog muaj zog alkalis thiab hydrofluoric acid. Lawv kuj tuaj yeem tswj cov xwm txheej hnyav uas ua rau tag nrho cov hlau alloys puas tsuaj. Vim tias quartz yog nkig heev, nws tsis muaj zog heev thaum nws los txog rau kev siv tshuab. Qhov no txhais tau hais tias nws xav tau kev tiv thaiv enclosures thiab ceev faj tuav. Txawm li cas los xij, nws yog chemically inert, uas ua rau nws zoo meej rau semiconductor manufacturing thiab ultra-tshuaj cua sov. Teflon (PTFE) coatings los yog sheaths yog hloov tau nyob rau hauv ib txoj kev uas cov ntaub ntawv ceramic tsis tuaj yeem, txawm li cas los xij lawv siv tsis tau ntawm qhov kub siab tshaj 260 ° C.
Alkali tej yam kev mob, tshwj xeeb tshaj yog muaj zog caustic daws nyob rau hauv high kub, puas alloys uas yog resistant rau corrosion nyob rau hauv txoj kev uas txawv los ntawm yuav ua li cas acids. Nickel-raws li alloys uas muaj peev xwm tswj tau cov acidic ib puag ncig zoo tuaj yeem tawg hauv kev ntxhov siab thaum lawv raug cov tshuaj sodium hydroxide uas muaj ntau tshaj 50% thiab kub siab tshaj 80 ° C. Monel thiab Inconel 600 yog cov piv txwv ntawm cov alloys tshwj xeeb uas ua haujlwm zoo dua rau cov ntawv thov hnyav hnyav. Txawm li cas los xij, txawm tias cov ntaub ntawv no muaj kev txwv rau qhov concentration thiab kub uas yuav tsum tau ua tib zoo xav.
Qhov tseem ceeb ntawm Nto Finish thiab Bore Npaj rau 3.175 mm Cartridge rhaub
Qhov zoo ntawm qhov chaw tiav muaj qhov cuam tshuam loj npaum li cas nws tuaj yeem tiv taus corrosion hauv cov xwm txheej tshuaj. Polished nto yog zoo dua ntawm kev tiv thaiv tshuaj adhesion thiab crevice txoj kev loj hlob tshaj ntxhib los yog matte tiav. Electropolishing, ntawm qhov tod tes, tshem tawm qhov tsis zoo ntawm qhov chaw thiab chromium- cov txheej txheem depleted uas pib corrosion. Rau cov cua sov muab tso rau hauv cov thawv uas tuaj yeem sib cuag nrog cov tshuaj, qhov chaw du kuj ua rau nws yooj yim dua los ntxuav thiab nres cov khoom los ntawm kev tsim, uas tuaj yeem ua rau cov kab mob hauv zos los yog cov chaw kub.
Nyob rau hauv cov xwm txheej corrosive me ntsis uas txawv txawv alloys kim heev, cov txheej tiv thaiv ua rau cov cua sov siv tau ntau dua. Ceramic coatings uas tau muab tso rau hauv plasma spraying los yog lwm txoj kev deposition tsim thaiv txheej ntawm lub hauv paus hlau sheath thiab cov tshuaj ib puag ncig. Cov txheej txheem no yuav tsum nyob twj ywm ua ke txawm tias qhov kub hloov pauv, uas txhais tau hais tias thermal expansion coefficients ntawm txheej thiab substrate yuav tsum zoo ib yam. Ceramic coatings uas muab tso kom raug tuaj yeem ua rau cov cua sov kav ntev li ob zaug lossis peb zaug hauv cov xwm txheej tshuaj uas nyob ntawm ntug.
Cov kab kos tshuaj tiv thaiv kab mob yog qhov chaw zoo pib thaum xaiv cov ntaub ntawv, tab sis tiag tiag -cov xwm txheej hauv ntiaj teb feem ntau suav nrog kev sib xyaw ua ke, cov khoom paug me me, thiab qhov kub thiab txias uas hloov pauv, cov kab kos tsis tuaj yeem pom ib txwm muaj. Thaum hydrochloric acid nkag mus rau hauv sulfuric acid daws, nws ua rau cov tshuaj chloride nres uas cov kab kos cov kua qaub tsis xav tau. Kev hloov pauv hauv qhov kub thiab txias thaum lub sijhawm ua haujlwm cuam tshuam rau corrosion tus nqi hauv txoj kev tsis muaj kab. Kev sim teb hauv cov txheej txheem tiag tiag, txawm tias kim heev, feem ntau tshwm sim raws li ib qho kev cia siab rau kev txheeb xyuas cov khoom xaiv rau cov ntawv thov tseem ceeb.
