Kuti mulumikizane ndi flange yopanda kutayikira, kuyika koyenera kwa gasket kumafunika, ma bolts ayenera kuperekedwa pamphamvu yolondola ya bawuti, ndipo mphamvu yonse ya bawuti iyenera kugawidwa mofanana pa nkhope yonse ya flange.

Ndi Torque Tightening (kugwiritsa ntchito kuyika patsogolo kwa chomangira potembenuza nati ya chomangira) mphamvu yolondola ya bawuti imatha kuchitika.

Kumangitsa bwino bawuti kumatanthauza kugwiritsa ntchito bwino zotanuka za bawuti. Kuti bolt igwire bwino ntchito, iyenera kukhala ngati kasupe. Pogwira ntchito, kumangirira kumapangitsa kuti axial pre-load ivutike pa bolt. Katunduyu ndi wofanana komanso wotsutsana ndi mphamvu yopondereza yomwe imagwiritsidwa ntchito pazigawo zomwe zasonkhanitsidwa. Itha kutchedwa "kulimbitsa katundu" kapena "kulemera kwamphamvu"

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Wrench ya torque

Torque Wrench ndi dzina lanthawi zonse la chida chowongolera ndi dzanja, ndipo chimagwiritsidwa ntchito kuyika bwino mphamvu yomangira monga nati kapena bawuti. Imalola woyendetsa kuyeza mphamvu yozungulira (torque) yomwe imagwiritsidwa ntchito pa bolt kuti igwirizane ndi zomwe zafotokozedwa.

Manual ndi hydraulic wrench

Kusankhidwa kwa njira yoyenera yolumikizira bolt ya flange kumafuna chidziwitso. Kugwiritsa ntchito bwino njira iliyonse kumafunikiranso kuyenerera kwa zida zomwe zidzagwiritsidwe ntchito komanso ogwira ntchito omwe angagwire ntchitoyi. Zotsatirazi zikufotokozera mwachidule njira zomwe zimagwiritsidwa ntchito kwambiri zomangira bolt flange.

• Manual Wrench
• Impact Wrench
• Wrench ya Hammer
• Wrench ya Hydraulic Torque
• Manual Beam ndi Gear-Assisted Torque Wrench
• Hydraulic Bolt Tensioner

Kutayika kwa torque

Kutayika kwa torque kumakhala kokhazikika pamgwirizano uliwonse wa bawuti. Zotsatira zophatikizana za kupumula kwa bawuti, (pafupifupi 10% m'maola 24 oyamba mutatha kuyika), kutsika kwa gasket, kugwedezeka kwadongosolo, kukulitsa kwamafuta ndi kulumikizana zotanuka pakumizidwa kwa bawuti kumathandizira kutayika kwa torque. Kutayika kwa torque kukafika mopambanitsa, kupanikizika kwamkati kumaposa mphamvu yopondereza yomwe imagwira gasket m'malo mwake ndipo kutayikira kapena kuphulika kumachitika.

Chinsinsi chochepetsera zotsatirazi ndikuyika bwino gasket. Mwa kubweretsa ma flanges palimodzi pang'onopang'ono komanso mofananira poyika gasket ndikutenga njira zosachepera zinayi zomangitsa bawuti, kutsatira njira yoyenera yolimbikitsira bawuti, pali phindu pakuchepetsa mtengo wokonza ndikuwonjezera chitetezo.

Kunenepa koyenera kwa gasket ndikofunikiranso. Kuchuluka kwa gasket, m'pamenenso gasket imakwera kwambiri zomwe zimapangitsa kuti torque iwonongeke. Pamawonekedwe a ASME okweza nkhope, gasket wokhuthala wa 1.6 mm nthawi zambiri amalimbikitsidwa. Zida za Thinner gasket zimatha kutenga kuchuluka kwa gasket ndipo chifukwa chake kupanikizika kwakukulu kwamkati.

Mafuta amachepetsa kukangana

Kupaka mafuta kumachepetsa kukangana pakumangitsa, kumachepetsa kulephera kwa bawuti pakuyika ndikuwonjezera moyo wa bawuti. Kusiyanasiyana kwa ma friction coefficients kumakhudza kuchuluka kwa kulowetsedwa komwe kumakwaniritsidwa pa torque inayake. Kukangana kwakukulu kumapangitsa kuti ma torque achepe kuti alowetsenso. Mtengo wa coefficient friction woperekedwa ndi wopanga mafuta uyenera kudziwika kuti utsimikizire molondola mtengo wofunikira wa torque.

Mafuta odzola kapena oletsa khunyu ayenera kupakidwa pamwamba pa mtedza ndi ulusi wachimuna.

Kumangitsa kutsata

Kudutsa koyamba, kumangitsa bawuti yoyamba ndikusunthira molunjika kapena madigiri 180 kwa bawuti yachiwiri, kenako sunthani 1/4 tembenuzani bwalo kapena madigiri 90 pa bawuti lachitatu ndikuwoloka chachinayi. Pitirizani izi mpaka mabawuti onse atsekedwa.
Mukamangitsa flange ya ma bolt anayi, gwiritsani ntchito mawonekedwe a criss-cross.

Kumangitsa Kutsatizana

Kukonzekera flange bawuti-mmwamba

Mu mgwirizano wa flanged, zigawo zonse ziyenera kukhala zolondola kuti zikwaniritse chisindikizo. Chofala kwambiri cha leaky gasketed mfundo ndi njira zosayenera unsembe.

Musanayambe ndondomeko yoboola, zotsatirazi zoyambira zidzapewa mavuto amtsogolo:

• Tsukani nkhope za flange ndikuyang'ana zipsera; Nkhopezo ziyenera kukhala zoyera komanso zopanda zilema (zotupa, maenje, madontho, etc.).
• Yang'anani m'maso maboti onse ndi mtedza ngati ulusi wowonongeka kapena wa dzimbiri. Bwezerani kapena kukonza mabawuti kapena mtedza ngati pakufunika.
• Chotsani ma burrs ku ulusi uliwonse.
• Patsani mafuta ulusi wa bawuti kapena stud, ndi pamwamba pa mtedza nkhope moyandikana ndi flange kapena washer. Makina ochapira owuma amalimbikitsidwa m'mapulogalamu ambiri.
• Ikani gasket yatsopano ndikuwonetsetsa kuti gasket yakhazikika bwino. OSAGWIRITSA NTCHITO gasket yakale, kapena gwiritsani ntchito ma gaskets AMBIRI.
• Yang'anani kuyanjanitsa kwa flange ASME B31.3 Kupaka Njira:
  ... nkhope za flange ziyenera kufanana mkati mwa 1/16″ pa phazi lililonse la m'mimba mwake, ndipo mabowo a bawuti a flange akuyenera kulumikizidwa mkati mwa 1/8″ pamlingo waukulu.
• Sinthani malo a mtedza kuti muwonetsetse kuti ulusi wa 2-3 ukuwonekera pamwamba pa mtedza.

Kaya ndi njira iti yomangirira yomwe imagwiritsidwa ntchito, kuwunika kotsimikizika komanso kukonzekera kuyenera kuchitika nthawi zonse.

Ndemanga za Wolemba…

Zomwe ndakumana nazo pa…Torque Wrenches

• M'mbuyomu ndidasonkhanitsa mazana mazana olumikizana opanda flange, kuchokera ku NPS 1/2 kupita ku NPS 24 ndi kukulirapo. Nthawi zambiri ndimagwiritsa ntchito Torque Wrench.
  M'malo mwake, zolumikizira "zamba" za chitoliro sizimasonkhanitsidwa ndi Torque Wrench. Kulumikizana kovuta kwambiri kwa ine nthawi zonse kunali "ang'ono" ndiyeno makamaka mtundu wa nkhope yokweza pamwamba pa Class 300 (RF Height = pafupifupi 6.4 mm).
  Zogwirizana ndi nkhope za flange kuchokera ku NPS 1/2 flange ndizochepa ndiye mwachitsanzo NPS 6 flange, ndipo mwayi wolakwika, m'malingaliro mwanga ndi waukulu kwambiri.
  M'zochita ndimakumana pafupipafupi flange kugwirizana, kumene mayikidwe musati kulolerana malire. Ngati kungoti dongosolo la Kulimbikitsa Njira likutsatiridwa Mechanic sakhala otanganidwa. Ziyenera kuyambika pa bawuti sikisi m'malo mwa bawuti imodzi. Gwiritsani ntchito maso anu pamisonkhano ya flange, ndikofunikira kwambiri ndipo imathandizira kwambiri pakulumikizana kopanda kutayikira

Kulumikizana kolakwika kwa flange - ma bolts ndiafupi kwambiri!

Kodi mungatani?

• Chithunzichi chikuwonetsa flange yolakwika, chifukwa ma bolts awiri ndiafupi kwambiri, ndipo mtedza suli kwathunthu pazitsulo. Izi zikutanthauza kuti cholumikiziracho sichingakhale cholimba momwe chiyenera kukhalira. Ma Flanges amapangidwa kuti kuphatikiza konsekonse kwa nati-bolt kugwire mphamvu pa flange. Ngati natiyo yang'ambika pang'ono pa bawuti, kulumikizanako sikungakhale kolimba mokwanira.
• Ngati ntchito yanu ikuphatikizapo kulumikiza zipangizo pamodzi, kulumikiza chitoliro chopindika, zovundikira mabowo kapena zolumikizira zina zomangika pazida, kapenanso kulumikiza zida zina, kumbukirani kuti ntchitoyi siinathe mpaka mabawuti onse atayikidwa bwino ndikumangidwa.
• Zida zina zimafuna njira zapadera zomangirira bawuti. Mwachitsanzo, mungafunike kugwiritsa ntchito wrench ya torque kuti mumangitse mabawuti molunjika, kapena kumangitsa mabawuti mwadongosolo lapadera. Onetsetsani kuti mukutsatira ndondomeko yoyenera, mugwiritse ntchito zida zoyenera, komanso kuti mwaphunzitsidwa bwino pakupanga zida.
• Yang'anani mapaipi ndi zida za ma flanges otsekedwa bwino ngati gawo la zowunikira zanu zachitetezo cha mbewu. Monga chitsogozo chosavuta, mabawuti omwe sapitilira mtedza ayenera kuwunikiridwa ndi mmisiri wamapaipi kapena mainjiniya.
• Ngati muwona ma flanges otsekeredwa molakwika m'chomera chanu, afotokozereni kuti athe kukonzedwa, ndikuwonetsetsa kuti kukonzanso kofunikira kwatha.
• Yang'anani zida zatsopano, kapena zida zomwe zasonkhanitsidwa pambuyo pokonza, kuti muwonetsetse kuti zasonkhanitsidwa bwino komanso zotsekedwa bwino zisanayambe.

Kodi kutalika koyenera kwa Stud Bolt ndi kotani?
Monga lamulo, mungagwiritse ntchito: Ulusi waulere wa bawuti pamwamba pa mtedza ndi wofanana ndi 1/3 nthawi ya bawuti.