Vavu ya singano yosapanga dzimbiri ndi valavu yosinthika yapadziko lonse lapansi ya carbon steel yopangira luso

Vavu ya singano yosapanga dzimbiri ndi valavu yosinthika yapadziko lonse lapansi ya carbon steel yopangira luso

Chifukwa chiyani valavu ya singano ndi valve yomwe ingasinthidwe, chifukwa valavu ya singano ndi cone yakuthwa kwambiri, ngati singano yomwe imayikidwa pampando, choncho dzina. Lili ndi ntchito zosiyanasiyana, monga mtunda wodula wa kudula lamoto, kusintha kotentha kwa moto ndi valve ya singano.
Precision zosapanga dzimbiri valavu singano kuyenda bwino ntchito. Njira yothamanga ya valve ya singano ndi yowongoka kudzera mu mawonekedwe, kotero kuti kutuluka kwa sing'anga sikufunikanso kutembenuka, makamaka kuchepetsa kuthekera kwapakati. Choncho, ndi abwino kwambiri mamasukidwe akayendedwe mkulu, kuyimitsidwa, zamkati ndi zina zonyansa TV malo.
Precision zosapanga dzimbiri singano vavu 2 ntchito yaikulu:
1. Kudula ntchito: Kudula bwino kwa valve ya singano. Chimodzi mwa zinthu zofunika kwambiri za valve ya singano ndi chakuti kukhudzana pakati pa spherical spool ndi mpando wokhotakhota kumakhala mu mawonekedwe okhudzana ndi mzere, zomwe zimachepetsa kukhudzana kwapamwamba ndi kuchepetsanso kutsika kwa valve. Chachiwiri ndikutenga miyeso ya mizere, monga kutsogolo kwa mzere, aluminiyamu yopangira zitsulo, mapulasitiki a uinjiniya, mphira wachilengedwe ndi kusankha kosiyanasiyana kopanga mphira.
2, odana ndi dzimbiri ntchito: zosapanga dzimbiri valavu singano valavu thupi choyamba dzimbiri kupewa dzimbiri, makamaka kusankha kolondola kwa zipangizo. Ngakhale kuti chidziwitso cha kupewa dzimbiri ndi cholemera kwambiri, sikophweka kusankha choyenera, chifukwa vuto la dzimbiri ndi lovuta kwambiri. Kuvuta kusankha valavu thupi zakuthupi ndi kuti sangathe kuganizira vuto dzimbiri, komanso ayenera kuganizira kupanikizika ndi kutentha kukana, kaya chuma ndi wololera, ngati kugula ndi kosavuta ndi zina.
Zovala za singano kuti musamalire: [Njira yoyika: kuyikira m'mbali kapena kuyika pamwamba posankha]
Valavu yosinthira singano iyenera kuyang'aniridwa musanakhazikitsidwe, dzina la valve liyenera kugwirizana ndi zomwe zikuchitika padziko lonse lapansi "Universal Valve Mark" GB 12220. Kwa valavu yomwe mphamvu yake yogwira ntchito ndi yaikulu kuposa 1.0MPa ndipo imagwira ntchito yodula pa chitoliro chachikulu, kuyesa mphamvu ndi zolimba ziyenera kuchitidwa musanayike, ndipo valve yoyenerera ingagwiritsidwe ntchito. Kuyesa kwamphamvu, kuthamanga kwa mayeso ndi nthawi 1.5 kukakamiza mwadzina, nthawiyo si yochepera 5min, chipolopolo cha valve, kulongedza kuyenera kukhala koyenera popanda kutayikira. Kulimbitsa thupi, kuthamanga kwa mayeso ndi nthawi 1.1 za kukakamiza mwadzina; Kutalika kwa mayeso kumakwaniritsa zofunikira za GB 50243.
Kuchuluka kwa ntchito: mtundu wamba: woyenera kuthamanga kwapansi ndi sing'anga, palibe zofunikira za anticorrosion zamtundu wa vacuum: oyenera kutentha, kutentha kopitilira muyeso, kutsika, sing'anga ndi kuthamanga kwambiri, palibe zofunikira zapadera za anticorrosion pa nthawi ya kupewa chisanu.
Ukadaulo wa carbon zitsulo forgings wa valavu wamba (awiri) Aliyense ng'anjo kutentha mankhwala forgings ayenera kumakanika mayeso, ngati ng'anjo yemweyo kutentha mankhwala forgings ndi manambala oposa awiri akugubuduza ng'anjo, aliyense Kugubuduza ng'anjo nambala ayenera kumakoka mayeso. Ngati ma forgings ndi ochepa kwambiri, ndizosatheka kupanga midadada yaying'ono yoyeserera pamayeso oyeserera kapena kutenga midadada yonse yoyeserera yofananira ndi njira yayikulu yosinthira, ndipo ndizosatheka kukhazikitsa midadada yapamwamba yoyeserera, ndiye 1% ya batch kapena zidutswa 10 (tenga mtengo wocheperako) ukhoza kuchotsedwa kuti uyese kuuma. Kuyesedwa kwamphamvu kudzachitika pambuyo pa NDT ndipo kudzachitika pang'onopang'ono. The forging unit adzakhala ndi udindo wa khalidwe la mayeso forgings.
Kulumikizana: general valve carbon steel forgings technical conditions (I)
Njira yoyesera
Tensile test
Aliyense kutentha mankhwala forgings adzakhala pansi kuyesedwa kolimba. Ngati forgings ndi chimodzimodzi kutentha mankhwala monga kuposa awiri anagubuduza ng'anjo manambala, aliyense Kugubuduza ng'anjo nambala adzakhala pansi kuyesedwa wamakokedwe.
Pansi pa kutentha kwapakati pazitsanzo, cholakwika cha kutentha chimakhala mkati mwa 14 ℃ ya dothi, ndipo pali zida zojambulira zapamwamba komanso zapamwamba, nambala ya ng'anjo yopumira imalumikizana, ndipo kuyesa kamodzi kokha kumafunika.
Njira yoyeserera yoyeserera iyenera kuchitidwa molingana ndi zomwe GB/T 228.
Ngati ma forgings ndi ang'onoang'ono kwambiri, ndizosatheka kupanga midadada yaying'ono kwambiri yoyeserera pamayeso oyeserera kapena kutenga midadada yonse yoyeserera yofananira ndi njira yayikulu yosinthira, ndipo ndizosatheka kukhazikitsa seti ya mayeso apamwamba. midadada, ndiye 1% ya mtanda kapena zidutswa 10 (kutenga mtengo pang'ono) akhoza yotengedwa mayeso kuuma.
Mayeso olimba
Forgings kuuma kuyesa njira malinga ndi GB/T 231.1.
Kuyesa kwamphamvu
Forgings amakhudza njira yoyesera molingana ndi GB/T 229.
Kuyesa kosawononga
Kuyesa kwa akupanga ndi njira zoyezera tinthu tating'onoting'ono ta forgings zizichitika molingana ndi zomwe GB/T4730.
Mayeso opanikizika
Njira yoyezetsa kukakamiza kwa ma forgings okakamiza iyenera kuchitidwa molingana ndi GB/T 13927.
Makanema okakamiza amayenera kuyesedwa pambuyo pa makina kuti muwonetsetse kuti palibe kutayikira.
Lamulo loyendera
Zinthu zowunikira komanso kuchuluka kwa zolembedwa pagiredi lililonse zafotokozedwa mu Gulu 5.
Table 5 Kupanga zinthu zoyendera
Ngati zotsatira zoyeserera zamakina sizikugwirizana ndi zomwe zili mu Table 4, chithandizo cha kutentha chidzabwezeretsedwanso molingana ndi zomwe zili mu 3. 3, ndipo chipikacho chidzapangidwa molingana ndi zomwe zili mu 3.5, ndi mayesero. zidzachitidwa molingana ndi zomwe zili mu 5.1. Komabe, chiwerengero cha chithandizo cha kutenthanso sichidzapitirira kawiri.
Kuyesedwa kwamphamvu kudzachitika pambuyo pa NDT ndipo kudzachitika pang'onopang'ono. The forging unit adzakhala ndi udindo pa khalidwe la mayeso forgings.
Kuitanitsa zofunika
Dongosolo la dongosolo kapena mndandanda wazofunsira uzikhala ndi izi:
a} chojambula chojambula, chomwe chili ndi tebulo ndi roughness, kulolerana, chiwerengero cha kalasi ndi zina zofunika;
b) Njira yopangira katundu ndi kujambula zojambula (zovomerezedwa ndi Demander ngati kuli kofunikira);
c) Chithandizo cha kutentha ndi zofunikira zina zingathe kukambirana ndi onse awiri.
d) Zofunikira zovomerezeka ndi zomwe zili mkati kuti ziwonjezedwe.
The Demander adzadziwitsa unit forging mkati mwa nthawi yomwe yatchulidwa mu mgwirizano ngati ipeza zowonongeka pakupanga kusanthula kapena kupanga makina. Ngati palibe chopereka, sichidutsa masiku 30.
Zolemba zomwe zikuyenera kuti zichotsedwe zidzasungidwa kwa masiku 30 kuyambira tsiku lotumiza lipoti la mayeso, pomwe gawo loyeserera lingapemphe kuyesedwanso.
Chizindikiro ndi satifiketi yabwino
Pambuyo poyeserera, zizindikiro zoyenerera ziyenera kumangirizidwa. Zomwe zili patsambali ndi:
a) Kabuku ka fakitale kapena chizindikiro cha fakitale,
b) Code zinthu;
C} malamulo kutentha kutentha;
d) Kupanga pakamwa nthawi;
e) Chizindikiro cha Inspector.
Kwa forgings ndi zolemera zazing'ono ndi zizindikiro zovuta, zizindikiro zingagwiritsidwe ntchito m'malo mwake, koma zizindikiro ziyenera kukhala pamalo omwe samakhudza kugwiritsa ntchito zojambulajambula.
Zolembazo zidzaperekedwa ndi chitsimikizo chamtundu wotsimikizira kuti mtundu wa forgings umakwaniritsa zofunikira za muyezowu.