Valve sealing nto hnav, yuav ua li cas kho valve dej siab kuaj cov txheej txheem ua haujlwm zoo
Tom qab siv lub valve mus sij hawm ntev, lub sealing nto ntawm lub disc thiab lub rooj zaum yuav hnav thiab qhov nruj yuav raug txo. Kev kho lub sealing nto yog ib txoj haujlwm loj thiab tseem ceeb. Txoj kev tseem ceeb ntawm kev kho yog kev sib tsoo. Rau qhov hnyav hnyav sealing nto, nws yog thawj surfacing tom qab tig ua thiab ces sib tsoo. Valve sib tsoo muaj xws li: ntxuav thiab tshuaj xyuas txheej txheem; Txoj kev sib tsoo
Tom qab siv lub valve mus sij hawm ntev, lub sealing nto ntawm lub disc thiab lub rooj zaum yuav hnav thiab qhov nruj yuav raug txo. Kev kho lub sealing nto yog ib txoj haujlwm loj thiab tseem ceeb. Txoj kev tseem ceeb ntawm kev kho yog kev sib tsoo. Rau qhov hnyav hnyav sealing nto, nws yog thawj surfacing tom qab tig ua thiab ces sib tsoo.
Sib tsoo ntawm li qub muaj xws li:
Cov txheej txheem ntxuav thiab tshuaj xyuas;
Kev sib tsoo;
Cov txheej txheem tshuaj xyuas.
Cov txheej txheem ntxuav thiab tshuaj xyuas
Ntxuav sealing nto nyob rau hauv lub lauj kaub roj, siv cov kws tshaj lij tu tus neeg saib xyuas, ntxuav thaum kuaj xyuas qhov kev puas tsuaj ntawm sealing nto. Cov kab nrib pleb uas nyuaj rau kev txiav txim siab los ntawm qhov muag liab qab tuaj yeem ua tiav los ntawm kev tshawb pom tint.
Tom qab ntxuav, lub disc lossis lub rooj vag valve yuav tsum tau kuaj xyuas qhov nruj ntawm qhov sib khi ntawm lub rooj zaum, siv cov xim liab thiab xaum thaum kuaj xyuas. Siv cov hmoov txhuas los kuaj cov liab, xyuas qhov sealing nto, txiav txim siab qhov sealing nto ntawm sealing nto; Los yog nrog ib tug cwj mem ntawm lub valve disc thiab lub rooj sealing nto kos ob peb concentric voj voog, thiab tom qab ntawd lub valve disc thiab lub rooj zaum kaw, xyuas cov xaum lub voj voog tshem tawm, txiav txim siab lub sealing nto ze.
Yog tias TSIS TXAUS SIAB tsis zoo, LUB DISC lossis GATE SEAL FACE thiab lub VALVE Lub Cev Lub Cev Lub Cev tuaj yeem raug tshuaj xyuas los ntawm STANDARD PLATE kom txiav txim siab qhov chaw sib tsoo.
Txoj kev sib tsoo
Cov txheej txheem sib tsoo yog qhov tseem ceeb ntawm cov txheej txheem ntawm lub tshuab dhos, pitting lossis qhov tob ntawm lub taub hau lub taub hau lossis lub rooj zaum feem ntau tsis pub dhau 0.5 hli, thiab txoj kev sib tsoo tuaj yeem siv rau kev kho. Cov txheej txheem sib tsoo yog muab faib ua ntxhib sib tsoo, nruab nrab sib tsoo thiab nplua sib tsoo.
Kev sib tsoo ntxhib yog txhawm rau tshem tawm cov kev puas tsuaj, indentation, corrosion point thiab lwm yam tsis xws luag ntawm lub sealing nto, kom lub sealing nto tuaj yeem tau txais flatness ntau dua thiab muaj qee qhov kev ua tiav, thiab nteg lub hauv paus rau kev sib tsoo ntawm lub sealing nto.
Kev sib tsoo ntxhib siv cov cuab yeej sib tsoo lub taub hau lossis cov cuab yeej sib tsoo lub rooj, kev siv cov ntawv xuab zeb ntxhib los yog ntxhib sib tsoo muab tshuaj txhuam, nws qhov loj me me 80 #-280 #, ntxhib particle loj, loj txiav ntau, kev ua haujlwm siab, tab sis cov nplej txiav tob dua, lub sealing. nto saum npoo yog ntxhib. Yog li ntawd, sib tsoo ntxhib ntev npaum li lub tiaj tus kom tshem tawm lub taub hau valve lossis lub rooj zaum pitting.
Kev sib tsoo nruab nrab yog txhawm rau tshem tawm cov pob zeb ntxhib ntawm qhov chaw sib khi thiab txuas ntxiv txhim kho lub tiaj tus thiab ua tiav ntawm qhov chaw sib khi. Kev siv cov ntawv xuab zeb zoo los yog cov tshuaj txhuam zoo, nws qhov loj me yog 280 #-W5, zoo particle loj, me me txiav nyiaj, yog qhov tsim nyog los txo qhov roughness; Nyob rau tib lub sijhawm, cov cuab yeej sib tsoo yuav tsum tau hloov, thiab cov cuab yeej sib tsoo yuav tsum huv.
Tom qab sib tsoo, lub dav hlau sib cuag ntawm lub valve yuav tsum ci. Yog tias koj siv tus cwj mem kos ob peb kab ntawm lub taub hau lub taub hau lossis lub rooj zaum, tig lub taub hau lub taub hau lossis lub rooj zaum rau lub teeb lub voj voog, cov xaum kab yuav tsum tau muab tshem tawm.
Kev sib tsoo zoo yog cov txheej txheem ntawm kev sib tsoo valve, feem ntau yog los txhim kho qhov sealing nto tiav. Kev sib tsoo zoo tuaj yeem siv rau hauv W5 lossis me me micro feem diluted nrog roj, roj av thiab lwm yam, nrog lub taub hau valve tiv thaiv lub rooj zaum valve rau kev sib tsoo, tsis muaj kev ua yeeb yam, uas yog qhov zoo dua rau qhov sib khi ntawm qhov ze.
Feem ntau thaum tig clockwise ib ncig ntawm 60-100 °, txog 40-90 ° tig rov qab mus rau qhov kev taw qhia rov qab, maj mam rau ib pliag, koj yuav tsum xyuas ib zaug, nyob ci ntsa iab, thiab ntawm lub taub hau valve thiab lub rooj zaum ntawm lub rooj zaum tuaj yeem pom ntau heev. cov kab zoo, xim rau cov xim dub dub, maj mam nrog cov roj zeb dua ob peb zaug, nrog ib daim ntaub huv los so kom huv si.
Tom qab sib tsoo, tom qab ntawd tshem tawm lwm yam tsis xws luag, uas yog, yuav tsum tau sib sau ua ke sai li sai tau, thiaj li tsis ua rau lub taub hau zoo sib tsoo valve.
Los ntawm txhais tes sib tsoo txawm ntxhib los yog nplua, yeej ib txwm los ntawm kev nqa, muab tso; Kev sib hloov, reciprocation; Cov txheej txheem sib tsoo uas sib txuas tapping, thim rov qab thiab lwm yam haujlwm. Lub hom phiaj yog kom tsis txhob rov ua dua ntawm abrasive lem, ua kom cov cuab yeej sib tsoo thiab sealing nto tau zoo sib xws, thiab txhim kho qhov flatness thiab tiav ntawm sealing nto.
Kev tshuaj xyuas theem
Nyob rau hauv cov txheej txheem sib tsoo, lub sijhawm tshuaj xyuas yog ib txwm khiav los ntawm, nws lub hom phiaj yog los tuav qhov kev sib tsoo txhua lub sijhawm, paub, ua kom zoo sib tsoo kom tau raws li cov kev xav tau. Nws yuav tsum tau muab sau tseg tias DIFFERENT valve sib tsoo yuav tsum tau siv los hloov mus rau ntau yam sealing nto ntaub ntawv ntawm kev sib tsoo cov cuab yeej, thiaj li yuav txhim kho kev sib tsoo efficiency thiab xyuas kom meej kev sib tsoo zoo.
Valve sib tsoo yog ib txoj haujlwm ntxaws heev, yuav tsum muaj kev paub, tshawb nrhiav, txhim kho hauv kev xyaum, qee zaum sib tsoo zoo heev, tab sis tom qab kev teeb tsa lossis cov dej ntws tawm, qhov no yog vim tias hauv cov txheej txheem sib tsoo muaj kev sib tsoo sib txawv ntawm kev xav, tes sib tsoo pas nrig yog. tsis ntsug, skew, los yog sib tsoo cov cuab yeej loj lub kaum sab xis deviation.
Vim hais tias tus neeg sawv cev abrasive yog sib xyaw ntawm cov kua abrasive thiab abrasive, thiab cov kua abrasive yog cov roj kerosene thiab roj. Yog li ntawd, kev xaiv kom raug ntawm cov tshuaj abrasive ** qhov txuas tseem ceeb yog xaiv qhov raug ntawm abrasive.
Yuav ua li cas xaiv valve abrasive kom raug?
Aluminium oxide (>
Silicon carbide (SiC) Silicon carbide yog ntsuab thiab dub, nws hardness siab dua alumina. Ntsuab silicon carbide yog tsim rau kev sib tsoo nyuaj alloy; Dub silicon carbide yog siv rau kev sib tsoo cov ntaub ntawv nkig thiab cov ntaub ntawv mos, xws li cam khwb cia hlau, tooj dag, thiab lwm yam.
Boron carbide (B4C) hardness yog qis dua pob zeb diamond hmoov thiab nyuaj dua silicon carbide, feem ntau yog siv los hloov pob zeb diamond hmoov sib tsoo nyuaj alloy, sib tsoo nyuaj chrome-plated nto.
Chromium oxide (Cr2O3) chromium oxide yog lub siab tawv thiab zoo heev abrasive, quenched steel feem ntau siv los ua kom tiav chromium oxide, feem ntau kuj siv hauv polishing.
Hlau oxide (Fe2O3) hlau oxide kuj yog ib tug zoo valve abrasive, tab sis lub hardness thiab sib tsoo nyhuv yog phem tshaj chromium oxide, tib siv thiab chromium oxide.
Pob zeb diamond hmoov Lub crystallization 磮 C, nws yog ib tug * * nyuaj abrasive, txiav kev ua tau zoo, tshwj xeeb tshaj yog haum rau kev sib tsoo nyuaj alloy.
Tsis tas li ntawd, qhov abrasive particle loj (abrasive particle loj) muaj *** cuam tshuam rau kev sib tsoo efficiency thiab nto roughness. Coarse sib tsoo, lub valve workpiece nto roughness yuav tsum tsis siab, thiaj li yuav txhim khu kev sib tsoo efficiency yuav tsum xaiv coarse abrasive; Thaum ua tiav, cov nyiaj sib tsoo me me, qhov yuav tsum tau ua ntawm cov khoom ua haujlwm saum npoo roughness siab, thiab nplua-grained abrasive tuaj yeem siv tau.
Sealing nto coarse sib tsoo abrasive particle loj yog feem ntau 120 # ~ 240 #; Qhov tseeb yog W40 ~ 14.
Lub valve modulates lub abrasive, feem ntau yog los ntawm kev ntxiv kerosene thiab lub cev muaj zog roj ncaj qha mus rau lub abrasive. Abrasives npaj nrog 1/3 kerosene ntxiv rau 2/3 roj thiab abrasive yog tsim rau coarse sib tsoo; Cov abrasives ua los ntawm 2/3 kerosene ntxiv rau 1/3 roj thiab abrasive tuaj yeem siv los ua kom tiav.
Thaum sib tsoo lub workpiece nrog siab hardness, cov nyhuv ntawm kev siv tus neeg sawv cev abrasive tsis zoo tagnrho. Nyob rau lub sijhawm no, cov lard uas tuaj yeem siv 3 lub tshuab ntxhua khaub ncaws los ntxiv cov cua sov los kho ua ke kom sawv, tsim cov tshuaj txhuam tom qab txias, ntxiv qee cov KEROSENE kom tsim nyog ib zaug ntxiv thaum siv lossis roj av los kho kom zoo.
Kev xaiv cov cuab yeej sib tsoo
Valve disc thiab valve lub rooj sealing nto vim qhov sib txawv ntawm qhov kev puas tsuaj, tsis tuaj yeem kawm ncaj qha, tab sis nrog qee tus lej thiab cov lus qhia tshwj xeeb ntawm lub valve tsis tseeb (lub taub hau sib tsoo), lub rooj zaum tsis tseeb (uas yog lub rooj sib tsoo) feem ntawm lub valve. rooj zaum, valve disc sib tsoo.
Sib tsoo lub taub hau thiab sib tsoo lub rooj zaum yuav tsum tau ua los ntawm COMMON CARBON steel los yog cam khwb cia hlau thiab yuav tsum yog tib yam loj thiab lub kaum sab xis raws li lub disc thiab lub rooj zaum tso rau ntawm lub valve.
Yog tias kev sib tsoo ua tiav manually, yuav tsum muaj ntau yam sib tsoo rods. Kev sib tsoo pas nrig thiab cov cuab yeej sib tsoo yuav tsum tau muab sib dhos kom zoo thiab yuav tsum tsis txhob skewed. Txhawm rau txo qis kev siv zog thiab kev sib tsoo ceev, hluav taws xob sib tsoo tshuab lossis kev vibration sib tsoo tshuab feem ntau siv.
Kev nyab xeeb kev coj ua rau kev sim hydraulic ntawm li qub
1. Lub valve xa mus rau hauv qhov kev ntsuam xyuas hydraulic tsis pub muaj cov kab nrib pleb, pores, dents, valve qia hloov tsis pub kom muaj qhov tshwm sim daig.
2. Siv thiab spare bolts thiab txiv ntseej yuav tsum tau muab xam rau lub zog thiab cim kom tsis txhob tsis meej pem.
3. Lub workpiece xeem yuav tsum tau fastened rau lub cuab yeej thiab tsis tso cai rau muab tso rau dawb. Haofm.com.q2G B V5vJ
4. Cov hlua roj hmab lossis lwm cov ntaub qhwv elastic uas siv rau kev sim yuav tsum tsis txhob ua pob, txheej, xoob, lossis poob elasticity.
5. Ua kev ntsuas siab raws li cov txheej txheem cov khoom. Thaum lub siab tau nce siab tshaj qhov ua haujlwm siab, nws tsis raug tso cai rau twist lub txiv ntoo, clamp lub cuab yeej thiab lwm yam ntawm cov khoom.
6. Qhov kawg npog yuav tsum tau ua raws li cov kev cai ntawm cov ntaub ntawv technical thiab dhau qhov kev xeem ua ntej nws tuaj yeem siv tau. Thaum lub ntsuas ntsuas siab tshaj 25% ntawm cov ntsuas ntsuas, nws tsis raug tso cai siv.
Post lub sij hawm: Aug-24-2022
