Lub kaum sab xis li qub, raws li cov khoom tseem ceeb hauv kev tswj cov kua dej, yog siv dav hauv tshuaj, tshuaj, khoom noj khoom haus, thiab cov kab ntau lawm. Lawv lub luag haujlwm tseem ceeb yog los tswj cov dej ntws ntawm cov dej kom meej, ua kom cov txheej txheem ruaj khov thiab kev nyab xeeb. Kev sib txuas ntawm lub kaum sab xis valve muaj ntau cov kauj ruam, suav nrog kev xaiv cov khoom siv, kev tsim qauv, kev tsim khoom, thiab kev sib khi tshuab, yuav tsum tau xav txog kev ua tau zoo, ua haujlwm ntev, thiab tus nqi- ua tau zoo. Kab lus no piav qhia txog cov txheej txheem kev sib txuas tseem ceeb thiab cov ntsiab lus tseem ceeb rau lub rooj zaum lub rooj zaum.
Kev xaiv cov khoom thiab Pretreatment
Lub synthesis ntawm lub kaum sab xis li qub feem ntau yog nyob ntawm kev xaiv cov khoom siv. Lub cev valve feem ntau yog ua los ntawm stainless hlau (xws li 304, 316L), tooj dag, los yog engineering plastics (xws li polytetrafluoroethylene (PTFE)), nyob ntawm qhov corrosiveness ntawm xov xwm, kub, thiab siab xav tau. Piv txwv li, rau cov kua qaub muaj zog los yog siab - daim ntawv thov kub, 316L stainless hlau yog qhov zoo dua vim nws zoo heev corrosion kuj thiab mechanical zog. Rau cov zaub mov- qib kua, cov khoom siv huv huv uas ua tau raws li FDA cov qauv yuav tsum tau ua. Kev xaiv cov khoom siv sealing kuj tseem ceeb heev. Cov kev xaiv muaj xws li nitrile roj hmab (NBR), fluororubber (FKM), thiab polytetrafluoroethylene (PTFE). Cov ntaub ntawv no yuav tsum ua kom pom qhov kub thiab txias siab, tiv thaiv kev laus, thiab tsis tshua muaj to. Thaum lub sij hawm pretreatment, cov ntaub ntawv hlau feem ntau undergo polishing, pickling, los yog passivation kom tshem tawm qhov tsis xws luag thiab txhim khu corrosion kuj. Cov khoom tsis yog{14}}cov ntaub ntawv hlau tau raug kuaj xyuas qhov ruaj khov kom ntseeg tau tias kev ua haujlwm ntev-.
Kev tsim qauv tsim thiab txheej txheem tsim khoom
Tus qauv tsim ntawm lub kaum sab xis valve ncaj qha cuam tshuam nws cov dej tswj qhov tseeb thiab kev pabcuam lub neej. Lub kaum sab xis ntawm lub rooj zaum muaj lub cev lub cev, lub rooj zaum valve, lub ntsaws valve (xws li lub pob stainless hlau lossis ceramic plunger), actuator (phau ntawv, pneumatic, lossis hluav taws xob), thiab cov khoom sib khi. Nws cov qauv tsim qauv tseem ceeb suav nrog:
1. Flow Path Optimization: Txais ncaj nraim - los ntawm txoj kev ntws los yog lub kaum sab xis yuav txo tau cov dej tsis kam thiab zam kev poob siab los ntawm kev kub ntxhov.
2. Valve Seat Tightness: Precision machining (xws li CNC tig los yog sib tsoo) ua kom nruj haum nruab nrab ntawm lub rooj zaum valve thiab valve plug, ua tiav xoom los yog tsawg heev los tswj.
3. Actuator Matching: Xaiv ntawm pneumatic (yuav teb ceev) lossis hluav taws xob (siab controllability) actuation, thiab integrate caij nplooj ntoos hlav rov qab los yog ob npaug - ua haujlwm raws li kev khiav hauj lwm.
Nyob rau hauv cov nqe lus ntawm kev tsim, lub valve lub cev yog feem ntau cam khwb cia (xws li precision casting los yog xuab zeb casting) los yog forged, ua raws li CNC machining los xyuas kom meej qhov tseeb. Qhov chaw mating ntawm lub valve ntsaws thiab lub rooj zaum yuav tsum muaj txheej txheej tawv (xws li chrome plating lossis titanium nitride) lossis cov khoom siv ceramic los txhim kho hnav tsis kam. Thaum vuam txheej txheem (xws li argon arc vuam) yog siv los txuas cov yeeb nkab sib txuas, cov khoom siv hluav taws xob yuav tsum nruj me ntsis tswj kom tsis txhob muaj cov khoom deformation.
Sealing Technology thiab Kev Tshawb Fawb Txog Kev Ua Haujlwm
Sealing kev ua tau zoo yog ib qho ntawm cov cim tseem ceeb ntawm lub kaum sab xis valve synthesis. Dynamic seals (xws li lub foob txav ntawm lub valve ntsaws thiab lub rooj zaum valve) feem ntau tso siab rau qhov nruj ntawm cov khoom siv elastic (xws li O-ntiv nplhaib lossis di ncauj foob) tiv thaiv cov hlau nto. Cov ntsaws ruaj ruaj (xws li ntawm cov yeeb nkab sib txuas) siv cov khoom siv gaskets (xws li graphite los yog kauv lub qhov txhab gaskets) kom ua tiav qhov kev foob zoo.
Txhawm rau kom ntseeg tau tias lub rooj sib dhos lub tog zaum valve ua tau raws li cov qauv kev lag luam, cov ntawv pov thawj hauv qab no yuav tsum tau ua:
1.Pressure Testing: Kev ntsuas dej los yog huab cua siab ntawm 1.5 npaug ntawm qhov ntsuas siab tau ua los xyuas kom pom cov dej xau thiab kev ua haujlwm zoo.
2.Temperature Cycling Testing: Qhov no simulates cov ntaub ntawv nthuav dav thiab seal kev ntseeg tau nyob rau hauv kev ua haujlwm huab cua (xws li -20℃txog 200℃).
3.Life Testing: Qhov no ntsuam xyuas lub ntsaws ntsaws ntsaws thiab foob degradation los ntawm siab - zaus ntawm - tawm mus (piv txwv li, tshaj 100,000 cycles).
Lub synthesis ntawm lub kaum sab xis li qub yog ntau txoj kev qhuab qhia uas yuav tsum muaj kev koom ua ke ntawm cov ntaub ntawv kev tshawb fawb, kev tsim kho tshuab, thiab cov txheej txheem tsim khoom. Los ntawm kev xaiv cov khoom siv tau zoo, kev tsim qauv tsim kho kom zoo, thiab kev tshawb xyuas kev ua tau zoo, kev ntseeg tau thiab siv tau ntawm lub kaum sab xis ntawm lub rooj zaum tuaj yeem txhim kho tau zoo. Nyob rau hauv lub neej yav tom ntej, nrog rau kev tsim cov ntaub ntawv tshiab (xws li cov ntaub ntawv sib xyaw, nano-coatings) thiab cov cuab yeej tsim khoom ntse, cov txheej txheem kev sib txuas ntawm lub kaum sab xis ntawm lub rooj zaum yuav hloov zuj zus mus rau qhov siab, lub neej ntev thiab kev txawj ntse kom tau raws li kev thov kev lag luam nruj dua.