Ndemanga
The kusanthula limasonyeza kuti zinthu zimakhudza adhesion pakati nozzle mkati ndivalavumakamaka zikuphatikizapo valavu akuchitira ndi kutetezedwa, mkati nozzle mphira chiphunzitso ndi kusinthasintha khalidwe, mkati nozzle mphira PAD vulcanization kulamulira, ndondomeko ntchito ndi chilengedwe kupanga, mkati nozzle mphira PAd fixation ndi mkati chubu vulcanization, etc., kupyolera mu kusamalira bwino ndi kusunga mavavu, ulamuliro wa mkati nozzle pawiri chiphunzitso ndi kusinthasintha khalidwe, kukhazikika kwa mkati nozzle mphira PAD vulcanization zikhalidwe, okhwima ndondomeko ntchito ndi kukonza chilengedwe, mkati nozzle mphira PAd fixation ndi mkati chubu vulcanization kukwaniritsa zofunika za ndondomeko Chikhalidwe ndi njira zina akhoza kusintha adhesion pakati. mphira wamkati wamphuno ndi valavu ndikuwonetsetsa kuti chubu chamkati chili bwino.
1. Mphamvu ndi kuwongolera kwa chithandizo cha valavu nozzle ndi kusungidwa pamamatira
Thevalavu ya tayalandi gawo lofunikira la chubu lamkati. Nthawi zambiri amapangidwa ndi mkuwa ndipo amalumikizidwa ndi nyama yamkati ya chubu lonse kudzera pa mphira wamkati wa mphira. Kumamatira pakati pa nozzle wamkati ndi valavu kumakhudza mwachindunji ntchito yachitetezo ndi moyo wautumiki wa chubu chamkati, choncho ziyenera kutsimikiziridwa kuti kumatira kumakwaniritsa zofunikira. Popanga machubu amkati, nthawi zambiri amadutsa njira monga kunyamula mavavu, kupukuta, kuyanika, kukonza mphira wamkati wa mphira, mphira wa mphira ndi vulcanization ya valavu mu nkhungu yomweyo, etc. pa chubu chamkati chobowoleredwa mpaka chubu chamkati chamkati chivunda. Kuchokera pakupanga, tikhoza kusanthula kuti zinthu zomwe zimakhudza kumamatira pakati pa mphuno yamkati ndi valavu makamaka zikuphatikizapo kukonza ndi kusunga valavu, kupangidwa kwa mphira wamkati ndi kusinthasintha kwa khalidwe, kulamulira kwamkati kwa mphira wa rabara vulcanization, ndondomeko ya ntchito ndi chilengedwe chopanga, mphira wamkati wa nozzle. Pankhani ya kukonza kwa pad ndi mkati mwa chubu vulcanization, njira zofananira zitha kuchitidwa kuti ziwongolere zomwe zili pamwambazi, ndikukwaniritsa cholinga chowongolera kumamatira pakati pa nozzle wamkati ndi valavu ndikuwonetsetsa kuti chubu chamkati chikuyenda bwino.
1.1 Zinthu zokopa
Zinthu zomwe zimakhudza kumamatira pakati pa valavu ndi mphuno yamkati zimaphatikizapo kusankha zinthu zamkuwa zopangira valavu, kuwongolera njira yopangira, kukonza ndi kusunga valavu musanagwiritse ntchito.
Zida zamkuwa zopangira valavu nthawi zambiri zimasankha mkuwa wokhala ndi mkuwa wa 67% mpaka 72% ndi zinc zomwe zili 28% mpaka 33%. Vavu yokonzedwa ndi mtundu woterewu imakhala yomatira bwino ku rabala. . Ngati mkuwa umaposa 80% kapena wotsika kuposa 55%, kumamatira kumagulu a mphira kumachepetsedwa kwambiri.
Kuchokera ku zinthu zamkuwa kupita ku valavu yomalizidwa, imayenera kudutsa muzitsulo zamkuwa, kutentha kwapamwamba, kupondaponda, kuziziritsa, kukonza makina ndi njira zina, kotero pali zonyansa zina kapena ma oxide pamwamba pa valve yomalizidwa; ngati valavu yomalizidwa yayimitsidwa motalika kwambiri kapena chinyezi chozungulira Ngati ndi yayikulu kwambiri, kuchuluka kwa okosijeni pamtunda kumakulitsidwanso.
Kuti athetse zonyansa kapena ma oxides pamwamba pa valavu yomalizidwa, valavu iyenera kunyowetsedwa ndi mawonekedwe otchulidwa (kawirikawiri sulfuric acid, nitric acid, madzi osungunuka kapena madzi a demineralized) ndi njira yowonjezera ya asidi kwa nthawi inayake isanafike. ntchito. Ngati kupanga ndi kusakanikirana kwa njira ya asidi ndi nthawi yothira sikukwaniritsa zofunikira, zotsatira za chithandizo cha valve zikhoza kuwonongeka.
Chotsani valavu yokhala ndi asidi ndikutsuka asidiyo ndi madzi oyera. Ngati yankho la asidi silinasamalidwe bwino kapena kutsukidwa bwino, lidzakhudza kugwirizana pakati pa valve ndi mphira.
Yambani valavu yoyeretsedwa ndi chopukutira, ndi zina zotero, ndikuyikeni mu uvuni kuti muwume nthawi. Ngati valavu ya valve yopangidwa ndi asidi ikuwonekera ndikusungidwa kwa nthawi yochuluka kuposa nthawi yomwe ikufotokozedwa, oxidation reaction idzachitika pamtunda wa valve, ndipo n'zosavuta kupezanso chinyezi kapena kumamatira ku fumbi, mafuta, ndi zina zotero; ngati sichikupukutidwa bwino, idzakhala pamtunda wa valve pambuyo poyanika. Pangani madontho amadzi ndikukhudza kumamatira pakati pa valavu ndi mphira; ngati kuyanika sikuli bwino, chinyezi chotsalira pamwamba pa valve chidzakhudzanso kumamatira kwa valve.
Valavu yowuma iyenera kusungidwa mu desiccator kuti pamwamba pa valve ikhale youma. Ngati chinyontho cha malo osungiramo zinthu ndizokwera kwambiri kapena nthawi yosungiramo ndi yayitali kwambiri, pamwamba pa valve ikhoza kukhala ndi oxidized kapena adsorbed chinyezi, zomwe zidzakhudza kumamatira kumagulu a rabara.
1.2 Njira zowongolera
Njira zotsatirazi zitha kuchitidwa kuti muchepetse zinthu zomwe zatchulidwa pamwambapa:
(1) Gwiritsani ntchito zinthu zamkuwa zomatira bwino ku mphira kuti mugwiritse ntchito valve, ndipo zinthu zamkuwa zomwe zili ndi mkuwa woposa 80% kapena zosakwana 55% sizingagwiritsidwe ntchito.
(2) Onetsetsani kuti mavavu a mtanda womwewo ndi ndondomeko amapangidwa ndi zinthu zomwezo, ndi kupanga kudula, kutentha kutentha, kupondaponda kuthamanga, kuzizira nthawi, Machining, malo oimika magalimoto ndi nthawi zogwirizana, kuti kuchepetsa kusintha kwa zinthu ndi processing ndondomeko. Kuchepetsa kumamatira kwazinthu.
(3) Wonjezerani mphamvu yodziwira valavu, kawirikawiri malinga ndi chiwerengero cha 0.3% sampuli, ngati pali vuto, chiwerengero cha zitsanzo chikhoza kuwonjezeka.
(4) Sungani mapangidwe ndi chiŵerengero cha njira ya asidi ya chithandizo cha valve acid chokhazikika, ndikuwongolera nthawi yoti mulowetse valavu mu njira yatsopano ya asidi ndikugwiritsanso ntchito njira ya asidi kuti muwonetsetse kuti valavu yachiritsidwa bwino.
(5) Tsukani valavu yokhala ndi asidi ndi madzi, iumeni ndi thaulo kapena nsalu youma yomwe sichotsa zinyalala, ndi kuiika mu uvuni kuti iume pakapita nthawi.
(6) Akaumitsa, ma valve ayenera kuyang'aniridwa imodzi ndi imodzi. Ngati mazikowo ndi oyera komanso onyezimira, ndipo palibe tsinde lamadzi lodziwikiratu, zikutanthauza kuti mankhwalawa ndi oyenerera, ndipo ayenera kusungidwa mu chowumitsira, koma nthawi yosungirako sayenera kupitirira maola 36; ngati valavu m'munsi Green wofiira, mdima wachikasu ndi mitundu ina, kapena zoonekeratu madontho madzi kapena madontho, zikutanthauza kuti mankhwala si bwinobwino, ndi kuyeretsa kwina kumafunika.
2. Chikoka ndi ulamuliro wa mkati nozzle guluu chilinganizo ndi kusinthasintha khalidwe pa adhesion
2.1 Zinthu zokopa
Mphamvu ya kapangidwe ka nozzle wamkati ndi kusinthasintha kwa mtundu wa rabara pamamatira avalavu ya mphirazimawonekera makamaka m'mbali izi:
Ngati chilinganizo cha mkati nozzle ali otsika guluu zili ndi fillers ambiri, fluidity wa mphira adzakhala yafupika; ngati mtundu ndi mitundu yosiyanasiyana ya ma accelerators osasankhidwa bwino, zidzakhudza mwachindunji kumamatira pakati pa mphuno yamkati ndi valve; Zinc okusayidi akhoza kusintha adhesion wa mkati nozzle, koma pamene tinthu kukula ndi lalikulu kwambiri ndi zonyansa zili kwambiri, adhesion adzachepa; ngati sulfure mu mphuno wamkati ndi mpweya, izo zidzawononga yunifolomu kubalalitsidwa kwa sulfure mu nozzle mkati. , zomwe zimachepetsa kumamatira kwa mphira pamwamba.
Ngati chiyambi ndi mtanda wa mphira yaiwisi yomwe imagwiritsidwa ntchito mkati mwa nozzle pawiri ikusintha, mtundu wa mankhwala ophatikizira ndi wosakhazikika kapena kusintha komwe kumayambira, mphirayo imakhala ndi nthawi yayitali yowotcha, mapulasitiki otsika, komanso kusakanikirana kosagwirizana chifukwa chazifukwa zogwirira ntchito, zonsezi zidzapangitsa kuti phokoso lamkati likhale lopangidwa. Ubwino umasinthasintha, womwe umakhudza kumamatira pakati pa mphira wamkati wa nozzle ndi valavu.
Popanga filimu ya rabara yamkati, ngati kuchuluka kwa nthawi zoyenga zotentha sikukwanira ndipo thermoplasticity ndi yochepa, filimu yotulutsidwa idzakhala yosasunthika mu kukula, kukula kwa elasticity ndi kutsika kwa pulasitiki, zomwe zidzakhudza madzi a mphira. ndi kuchepetsa mphamvu zomatira; ngati mkati nozzle mphira filimu kuposa nthawi yosungirako yotchulidwa ndi ndondomeko adzachititsa frosting filimu ndi zimakhudza adhesion; ngati nthawi yoyimitsa magalimoto ndi yochepa kwambiri, kutopa kwa filimuyo pansi pa zovuta zamakina sikungathe kubwezeretsedwa, ndipo madzi amadzimadzi ndi kumamatira kwa zinthu za rabara zidzakhudzidwanso.
2.2 Njira zowongolera
Njira zowongolera zofananira zimatengedwa molingana ndi chikoka cha mkati mwa nozzle formula komanso kusinthasintha kwabwino kwa mphira pamamatira:
(1) Pofuna kukhathamiritsa chilinganizo cha nozzle wamkati, mphira wamkati wamkati uyenera kuyendetsedwa moyenera, ndiye kuti, kuonetsetsa kuti mphira imasungunuka komanso kumamatira, ndikuwongolera mtengo wopanga. Mosamalitsa kulamulira tinthu kukula ndi zonyansa zili nthaka okusayidi, kulamulira vulcanization kutentha kwa nozzle wamkati, masitepe opaleshoni ndi magalimoto nthawi ya mphira kuonetsetsa yunifolomu sulfure mu mphira.
(2) Pofuna kuonetsetsa kukhazikika kwa khalidwe la rabala mumphuno yamkati, chiyambi cha mphira yaiwisi ndi mankhwala ophatikizira ayenera kukhazikitsidwa, ndipo kusintha kwa batch kuyenera kuchepetsedwa; kasamalidwe ka ndondomeko ayenera kulamulidwa mosamalitsa kuonetsetsa kuti zida magawo ndi zofunika muyezo; Kubalalika kofanana ndi kukhazikika mumagulu a mphira; kusakaniza mwamphamvu, zomatira, kusungirako ndi kuwongolera kutentha kuti zitsimikizire kuti nthawi yoyaka ndi pulasitiki ya mphira wa rabara ikukwaniritsa zofunikira.
Popanga filimu ya rabara yamkati ya nozzle, zida za mphira ziyenera kugwiritsidwa ntchito motsatizana; kuyeretsedwa kotentha ndi kuyeretsa bwino kuyenera kukhala kofanana, chiwerengero cha nthawi zowonongeka chiyenera kukhazikitsidwa, ndipo mpeni wodula uyenera kulowetsedwa; nthawi yoyimitsa filimu yamkati yamkati iyenera kuwongoleredwa mkati mwa 1 ~ 24 h, kuti zinthu za rabara zisabwerere chifukwa cha kutopa chifukwa cha nthawi yayifupi yoyimitsa.
3. Chikoka ndi kulamulira vulcanization wa mkati pakamwa mphira PAD pa adhesion
Kusankha valavu zinthu zoyenera ndi kusamalira ndi kusunga malinga ndi zofunika, kusunga chilinganizo cha mkati nozzle mphira wololera ndi khalidwe khola ndi maziko kuonetsetsa adhesion pakati mkati nozzle mphira ndi valavu, ndi vulcanization wa mkati mwa nozzle rabara pad ndi valavu (ndiko kuti, mphuno labala) Vulcanization) ndiye chinsinsi chowonetsetsa kuti agwirizane.
3.1 Zinthu zokopa
Chikoka cha nozzle vulcanization pa zomatira pakati pa nozzle wamkati ndi valavu zimawonekera makamaka pakudzaza kwa mphira wa rabara ndikuwongolera kuthamanga kwa vulcanization, kutentha ndi nthawi.
Mphuno ya mphira ikaphwanyidwa, mphuno ya valavu ndi filimu yamkati ya mphira nthawi zambiri imayikidwa mu nkhungu yapadera yophatikizana ndi mphira. Ngati kudzaza kwa zinthu za rabara kuli kwakukulu kwambiri (ndiko kuti, gawo la filimu ya rabara yamkati ndi yayikulu kwambiri kapena yokhuthala kwambiri), nkhungu ikatsekedwa, mphira wowonjezerayo umasefukira kuti apange nkhungu. m'mphepete mwa mphira, zomwe sizidzangowononga, komanso zimapangitsa kuti nkhungu isatseke bwino ndikuyambitsa mapepala a mphira. Si wandiweyani ndipo zimakhudza kumamatira pakati pa mphira wamkati wamkati ndi valavu; ngati kudzaza kwa zinthu za rabara kuli kochepa kwambiri (ndiko kuti, gawo la filimu ya rabara yamkati ndi yaying'ono kapena yopyapyala kwambiri), nkhungu ikatsekedwa, zinthu za rabara sizingadzaze nkhungu, yomwe ingadzaze. kuchepetsa mwachindunji Kumamatira pakati pa nozzle wamkati ndi valavu.
Pansi-sulfure ndi pamwamba-sulfure wa nozzle zidzakhudza adhesion pakati mkati nozzle ndi valavu. Nthawi ya vulcanization nthawi zambiri imakhala njira yodziwikiratu molingana ndi mphira womwe umagwiritsidwa ntchito mumphuno, kutentha kwa nthunzi ndi kukakamiza kwa clamping. Sizingasinthidwe mwakufuna pamene magawo ena amakhala osasinthika; komabe, ikhoza kusinthidwa moyenera pamene kutentha kwa nthunzi ndi kuthamanga kwa clamping kumasintha. , kuthetsa chikoka cha kusintha kwa parameter.
3.2 Njira zowongolera
Pofuna kuthetsa chikoka cha vulcanization ndondomeko nozzle pa adhesion pakati pa nozzle mkati ndi valavu, theopetical kuchuluka kwa mphira ntchito vulcanization wa nozzle ayenera kuwerengeredwa molingana ndi voliyumu ya nkhungu patsekeke, ndi dera. ndi makulidwe a filimu yamkati ya nozzle iyenera kusinthidwa molingana ndi momwe mphira amagwirira ntchito. Pofuna kuonetsetsa kuti kuchuluka kwa kudzaza mphira kuli koyenera.
Kuwongolera mwamphamvu kuthamanga kwa vulcanization, kutentha ndi nthawi ya nozzle, ndikuyimitsa ntchito ya vulcanization. Vulcanization ya Nozzle nthawi zambiri imachitika pa vulcanizer yathyathyathya, ndipo kukakamiza kwa vulcanizer plunger kuyenera kukhala kokhazikika. Paipi ya nthunzi ya vulcanization iyenera kukhala yotchingidwa bwino, ndipo ngati zinthu zilola, silinda yaing'ono kapena thanki yosungiramo nthunzi yokhala ndi voliyumu yoyenera iyenera kukhazikitsidwa kuti zitsimikizire kukhazikika kwa kutentha kwa nthunzi ndi kutentha. Ngati zinthu ziloleza, kugwiritsa ntchito mphamvu yofananira yodziwikiratu kungathe kuthetsa mavuto omwe amayamba chifukwa cha kusintha kwa magawo monga kukakamiza kwa clamping ndi kutentha kwa vulcanization.
4. Chikoka ndi kulamulira ndondomeko ntchito ndi kupanga chilengedwe pa adhesion
Kuphatikiza pa maulalo omwe ali pamwambawa, kusintha konse kapena kusayenerera kwa njira yogwirira ntchito komanso chilengedwe kudzakhalanso ndi vuto linalake pakumatira pakati pa nozzle wamkati ndi valavu.
4.1 Zinthu zokopa
Chikoka cha ntchito ya ndondomeko pa zomatira pakati pa mphira wamkati wa nozzle ndi valavu zimawonekera makamaka kusiyana pakati pa ntchito ndi muyezo wa mphira wa valve pakupanga.
Pamene valavu ikugwiritsidwa ntchito ndi chithandizo cha asidi, wogwiritsa ntchito samavala magolovesi monga momwe amafunikira kuti agwire ntchito, zomwe zingasokoneze valavu mosavuta; pamene valavu imamizidwa mu asidi, kugwedezeka kumakhala kosagwirizana kapena kulamulira nthawi sikoyenera. The mkati nozzle mphira ndi anapatuka m`kati otentha kuyenga, woonda extrusion, piritsi kukanikiza, yosungirako, etc., chifukwa kusinthasintha khalidwe filimu; pamene mphira wamkati wamkati umagwedezeka pamodzi ndi valavu, nkhungu kapena valavu imagwedezeka; kutentha, kupanikizika ndi kutentha panthawi ya vulcanization Pali zolakwika pakuwongolera nthawi. Pamene valavu yowonongeka ikuphwanyidwa pansi ndi m'mphepete mwa mphira wa rabara, kuya kwake sikukugwirizana, ufa wa rabara sutsukidwa bwino, ndipo phala la guluu limatsukidwa mosagwirizana, ndi zina zotero, zomwe zidzakhudza kumamatira pakati pa mphira wamkati wamphuno. ndi valavu.
Chikoka cha chilengedwe kupanga pa adhesion pakati mkati nozzle mphira ndi valavu makamaka akuwonetseredwa kuti pali madontho mafuta ndi fumbi mbali ndi mipata kukhudzana kapena kusungirako valavu ndi mkati nozzle mphira / pepala, amene idzayipitsa valavu ndi mphira wamkati wamkati / pepala; Chinyezi cha malo ogwirira ntchito chimaposa muyezo, zomwe zimapangitsa kuti valavu ndi mphira wamkati wamkati / pepala zitenge chinyezi ndipo zimakhudza kumamatira kwa valve ndi mphira wamkati wamkati.
4.2 Njira zowongolera
Kusiyanitsa pakati pa ndondomeko ndi ndondomeko, ziyenera kuchitika:
Vavu ikapatsidwa chithandizo cha asidi, wogwira ntchitoyo ayenera kuvala magolovesi oyera kuti azigwira ntchito motsatira malamulo; valavu ikamizidwa mu asidi, iyenera kugwedezeka mofanana; zilowerereni mu njira yatsopano ya asidi kwa 2-3 s, ndiyeno onjezerani nthawi yoviika moyenera; Mukachichotsa mumadzimadzi, muzimutsuka ndi madzi kwa mphindi pafupifupi 30 kuti mutsirize bwino; valavu ikatsukidwa iyenera kupukuta ndi chopukutira choyera chomwe sichichotsa zinyalala, ndikuchiyika mu uvuni kuti chiume kwa mphindi 20 mpaka 30. min; valavu yowuma sayenera kusungidwa mu chowumitsira kwa maola oposa 36. Magawo a mphira wamkati wa nozzle ayenera kukhala wokhazikika pakuyenga kotentha, kutulutsa kopyapyala, kukanikiza piritsi, kusungirako, ndi zina zambiri, popanda kusinthasintha koonekera; pa vulcanization, nkhungu ndi valavu ziyenera kusungidwa kuti zisagwedezeke, ndipo kutentha kwa vulcanization, kupanikizika ndi nthawi ziyenera kuyang'aniridwa bwino. Pansi ndi m'mphepete mwa mphira wa valavu ayenera kumetedwa mozama, ufa wa rabara uyenera kutsukidwa bwino ndi petulo panthawi yometa, ndipo ndende ndi nthawi ya guluu phala ziyenera kuyendetsedwa molondola, kuti mphira wamkati ndi mphira. valavu sidzakhudzidwa ndi ntchito ya ndondomekoyi. Kumamatira pakamwa.
Pofuna kupewa kuipitsidwa kwachiwiri kwa valavu ndi mphira wamkati wamkati / pepala, chipinda chochitira valavu asidi, uvuni, chowumitsira, kukonzekera filimu yamkati ndi makina opangira vulcanization ndi workbench ziyenera kukhala zoyera, zopanda fumbi ndi mafuta; chilengedwe ndi chochepa Chinyezi chimayendetsedwa pansi pa 60%, ndipo chotenthetsera kapena dehumidifier chikhoza kuyatsidwa kuti chisinthidwe pamene chinyezi chili chokwera.
5. Kutha
Ngakhale kumamatira pakati pa valavu ndi mphuno yamkati kumangogwirizanitsa kupanga chubu lamkati, mpheteyo imakhala ndi mphamvu yofunikira pachitetezo chachitetezo ndi moyo wautumiki wa chubu chamkati. Choncho, m'pofunika kusanthula zinthu zomwe zimakhudza kumamatira pakati pa valavu ndi mphuno yamkati, ndikutenga njira zothetsera vuto lonse la chubu lamkati.
Nthawi yotumiza: Nov-03-2022