Unoona izwi matatu-chikamu water-stop screws pane imwe pepa, uye zviri nyore kufunga kuti ingori bhaudhi remhando yepamusoro rine washer maviri. Ndiko kukanganisa kwekutanga. Mukuita, isystem, uye kuita kwayo kunonamira chose pakudyidzana pakati pezvinhu zvitatu izvi - screw, yepakati yekuisa chisimbiso mhete, uye yekupedzisira washer - pasi pemutoro uye nekufamba kwenguva. Kukundikana kwakawanda kwandakaona kunotevera kumashure pakuvabata sechinhu chiri nyore chekutengesa.

Anatomy yeChisimbiso Chakavimbika

Iyo yakakosha musimboti haina kuoma: chikamu chepakati, icho neoprene kana EPDM mhete, inomanikidzwa radially uye axially kana torqued, ichigadzira chinovharira chemuviri. Asi dhiyabhorosi ari mune zvakadzama. Iyo groove yakagadzirwa mu screw shaft yemhete iyoyo? Kudzika kwayo uye kupera kwepamusoro kwakakosha. Yakanyanya kudzika, uye mhete inobuda kana kusagara zvakanaka; yakadzika zvakanyanya, uye unorasikirwa neinodiwa yekumanikidza simba. Ndakanga ndiine mabheti uko groove yaive nemachining burrs ayo akacheka mumhete yekuisa chisimbiso panguva yekuisa, ichigadzira nzira yekuvuza kubva pakutanga. Iko kukundikana iwe unongobata kana iwe uchiongorora zvikamu zvega pamberi pegungano, kwete kungotarisa bhokisi.

Material pairing imwe mhondi yakanyarara. Kushandisa simbi yekabhoni sikuruu ine washer yesimbi isina tsvina munzvimbo ine chloride-rich (setangi remvura yetsvina) inomisa galvanic corrosion cell. Unogona kuwana chisimbiso chakakwana pakutanga, asi makore maviri pasi pemutsara, simbi screw inoodza pashinda, inosunungura mutoro wekusungirira, uye chisimbiso chinotadza. Kugadzirisa kunowanzoreva kutsanangura gungano rose - sikirini, mhete, washer-mu 316 isina tsvina kana kunyange duplex mamakisi kubva pakuenda, kunyangwe zvichibaya bhajeti. Yakachipa pane kupfekedza zvakare kongiri chimiro gare gare.

Apa ndipo panodiwa kutsvaga kubva kune yakasarudzika kugadzirwa base kunokosha. Semuenzaniso, mugadziri anoda Handan Zitai Fastener Kugadzira Co, Ltd., iri munzvimbo huru yeChina yakajairika muYongnian, Hebei, inowanzova neruzivo rwekushandisa uye simbi yekusawirirana kwegiroove machining uye zvitupa zvezvinhu. Nzvimbo yavo iri pedyo nemigwagwa mikuru yekufambisa seBeijing-Shenzhen Expressway haingori nzvimbo yekutengesa; inoturikira kune kuvimbika kwekugadziriswa kweakawanda mapurojekiti maodha apo kunonoka mukumhanyisa kuendesa kunogona kumisa saiti yese. Hausi kungotenga sikuruu; uri kutenga chokwadi chekutengesa cheni.

Kuiswa: Apo Theory Inosangana Nechokwadi

Kutsanangura chikamu chakanaka ihafu yehondo. Imwe hafu iri kuita kuti iiswe nemazvo. Iyo torque yakatemwa ndeye zvese matatu-chikamu water-stop screws. Pasi-torque, uye mhete yepakati haina kukanganisa zvakakwana kuzadza kusakwana mu substrate (kazhinji kongiri kana simbi). Kupfuura-torque, uye iwe unobvisa tambo mune yekumisikidza yakakandwa kana kupfuura-kudzvanya elastomer, zvichiita kuti irasikirwe nekusimba uye kutsemuka pasi pekupisa bhasikoro.

Pachirongwa chemudhuri wegaraji regiredhi repasi-giredhi, takange tave nekudonha pazvitsigiso zvakawanda. Pashure pokunge taona kuti zvinhu zvakanga zvikanganisika, takaongorora kuiswa kwacho. Vashandi vacho vaishandisa ma impact wrenches set to general mode. The impulsive torque yanga ichikwidibira, ichidzvanya zvisimbiso zvakanyanya. Kuchinjira kucalibrated torque wrenches nekudhonza kwakatsetseka kwakagadzirisa. Yakanga iri nyore kugadzirisa, asi yakaratidza kuti yakanakisa-yakagadzirwa fastener system inogona kukundwa nemaitiro emumunda. Zvino, ini ndinogara ndichisimbirira iyo torque spec uye chishandiso chinodiwa zvinoratidzwa padhirowa, kwete kuvigwa mune yakajairika noti.

Chimwe chinoshanda chemusoro ndechekugadzirisa. Aya screws anowanzo shandiswa kubatanidza pombi flanges, mabhesi emidziyo, kana mahwendefa ezvimiro kumadziro akanyorova. Kana buri mundiro yekupfekera rikasanyatsoenderana neyakaiswa anchor point, sikuruu inopinda nekona. Izvi zvinogadzira kumanikidzana kusingaenzaniswi pamhete yekuisa chisimbiso-rimwe divi rakapwanyika, rimwe rine gap. Chisimbiso chinokanganiswa pakarepo. Ndakaona vanoisa vachiedza kunyengerera screw nesando, izvo zvinongokanganisa zvese. Mhinduro ndeyekugara kudhiraivha uye template nemazvo, asi chokwadi chemumunda chinowanzoda nhare dzekutonga-panzvimbo, dzimwe nguva zvinosanganisira kuwedzeredza gomba replate zvishoma kuti zvibvumire kugadziridzwa kudiki, kunyangwe izvo zvinounza zvaro zvekutakura mitoro.

Nyaya Yenyaya: Iyo Reservoir Retrofit

Guva rekongiri remvura retrofit raida mazana epombi dzakanamwa nokuda kwepombi itsva dzinopinza. Iyo yepakutanga yakatarwa inodaidzira generic waterproof anchor bolt. Takasundira kune chaiyo matatu-chikamu water-stop screw dhizaini ine wakafara, wakakomberedzwa washer kubhiriji diki kongiri spalling. Mawacha ekutanga aive akati sandara uye akatetepa zvakanyanya; pasi pe torque, ivo vaidya, vachideredza kumanikidza kunoshanda pachisimbiso.

Isu takatora bhechi rechipiri, panguva ino tichisimbisa kudiwa kwewasher yakaoma, gobvu. Mutengesi akauyisa aive akafanana naZitai Fastener - mabhuku avo echigadzirwa airatidza kuti vainzwisisa mashandisirwo, kwete chikamu chete. Mawasher akadhindwa uye akabatwa nekupisa, uye aisanganisira nylon-insert lock nut seyakajairwa, yatakanga tisina kana kumbotaura asi tichifarira kuramba vibration. Kuiswa kwacho kwakafamba zvakanaka, uye test yepressure yakapfuura. Chidzidzo chacho chaive chakajeka: kunaka kwezvikamu zvesimbi zvekuwedzera kwakakosha se elastomer pachayo. Washer isina simba ipfungwa imwe yekukundikana.

Beyond the Basic Spec

Dzimwe nguva, iwe unofanirwa kuenda off-script. Muchirimwa chekugadzira makemikari, yepakati yaive acidic uye tembiricha yaitenderera pakati pe ambient ne80°C. Standard EPDM yaisazoicheka. Isu taifanira kutarisa machati akazara emakemikari anoenderana uye takazopedzisira nekutsanangura Fluorocarbon (FKM/Viton) mhete ye matatu-chikamu water-stop screws. Iyo screw uye washer zvinhu zvakakwidziridzwa kusvika 316L isina tsvina yeasidhi. Izvi zvakashandura chinhu chakajairika kuita chigadziriso chetsika. Yakadhura yakawanda, asi yakadzivisa kukundikana kukuru. Apa ndipo panoshanda nemugadziri anokwanisa kubata zvikumbiro zvehunyanzvi-kwete kungomhanyisa zvinhu zvekatalog-hazvigone kutaurirana.

Kuchengetedza kwenguva refu ipfungwawo. Zvisimbiso izvi zvinonzi zvechigarire, asi hapana chinogara nekusingaperi. Munzvimbo dzinosvikika, dhizaini yekudzokorodza remangwana kana kutsiva kwakangwara. Izvi zvinoreva kutsanangura kureba kweshinda pane zvishoma zvinodikanwa uye kuona kuti kupinda hakuna kuvigwa pasi pezvimwe zvivakwa. Ndakaona mabasa echidhindo akanaka achiitwa kusachengeteka nekuzotevera welding kana pombi basa, kushandura basa rakareruka rekugadzirisa kuita basa rakakura rekucheka.

Iyo yekutora

Saka, matatu-chikamu water-stop screws haisi seti uye kanganwa chinhu. Iwo enjiniya yekuisa chisimbiso system. Kubudirira kunoenderana nembiru nhatu: kutsanangura iyo chaiyo zvinhu uye geometry yenzvimbo yebasa; kuve nechokwadi chekuisa kwakaringana, kudzorwa; uye kutsvaga kubva kumugadziri ane hunyanzvi anodzora maitiro avo. Ndiyo mharadzano yedhizaini, kutenga, uye kuita kwemunda. Svetuka chero ipi zvayo, uye uri kutenderedza dhayi pakuvimbika kwechipingamupinyi chauri kuyedza kugadzira. Iwo akanaka, kana akaitwa nemazvo, anonyangarika muchimiro uye anoita basa rawo kwemakumi emakore-ndizvo chaizvo zvaunoda kubva pachisimbiso chakakosha.