Vavu kusindikiza pamwamba akupera njira ndi mphero zida zofunika valavu zoyenera kutentha ntchito ndi mbali yaikulu kusankha zinthu.
Mavavu osindikiza pamwamba amagawidwa mu mitundu iwiri ya ndege ndi conical kusindikiza pamwamba, zomwe ziyenera kukhala pansi popanga ma valve. Kupera pamanja kwa malo osindikizira ma valve kumachitika pogwiritsa ntchito zida zosavuta zopera. Pamanja akupera zambiri ntchito chonyowa akupera, m`kati chonyowa akupera zambiri kuwonjezera woonda abrasive wothandizila, kuti blunt abrasive particles kuchokera pamwamba ntchito, ndi nthawi zonse kuwonjezera abrasive particles, kuti apamwamba akupera dzuwa. Pamalo osindikizira omwe amafunikira kulondola kwambiri komanso kumaliza, nthawi zina mbale yamchenga yopanikizidwa imagwiritsidwa ntchito popera.
Zofunika zida zida
Pogaya, pali zofunikira ziwiri pazitsulo za chida chogaya: chimodzi ndi chakuti zinthu zomwe zimagwiritsidwa ntchito pogaya ziyenera kulowetsedwa mosavuta mu njere zowonongeka; Chachiwiri, zida zogwiritsira ntchito pogaya ziyenera kusunga mawonekedwe a geometric kulondola kwa chida chopera kwa nthawi yaitali.
Kuti ma abrasive particles alowemo mosavuta, chida choperacho chiyenera kukhala chofewa kusiyana ndi workpiece. Komanso osati zofewa kwambiri, apo ayi abrasive adzakhala kwambiri kapena onse ophatikizidwa ndi kuchepetsedwa kapena kutaya zotsatira kudula; Ndipo zinthu zazikulu zofewa kwambiri zipangitsanso chida chopera kuvala mwachangu. Pofuna kuteteza chida chogaya kuti zisawonongeke kulondola kwa geometric chifukwa cha kuvala mofulumira, zida zopangira zida ziyenera kukhala ndi kukana kwabwino, ndipo bungwe lake liyenera kukhala lofanana. Kuvala kwa zipangizo zokhala ndi yunifolomu kumakhalanso yunifolomu, zomwe zimapindulitsa kusunga kulondola kwa geometric kwa chida.
Pamene akupera valavu kusindikiza pamwamba, mphero chida chuma ntchito imvi kuponyedwa chitsulo. Gray kuponyedwa chitsulo akupera chida ndi oyenera akupera kusindikiza pamwamba pa zipangizo zosiyanasiyana zitsulo, akhoza kupeza bwino akupera khalidwe ndi apamwamba zokolola. Malo osindikizira a chitsulo chosapanga dzimbiri, mkuwa ndi chitsulo chosapanga dzimbiri cha austenitic nthawi zambiri amapangidwa ndi chitsulo chotuwa cha HB120-160. Imvi kuponyedwa chitsulo HB150-190 nthawi zambiri ntchito kusindikiza pamwamba akupera aloyi zolimba ndi kuzimitsidwa zitsulo, ndipo ambiri ntchito imvi kuponyedwa chitsulo sukulu ndi HT150 ndi HT1200.
Vavu kusindikiza pamwamba akupera njira
Mavavu osindikiza pamwamba amagawidwa mu mitundu iwiri ya ndege ndi conical kusindikiza pamwamba, zomwe ziyenera kukhala pansi popanga ma valve.
Vavu kusindikiza pamwamba akupera njira ali mitundu iwiri ya pamanja akupera ndi makina akupera.
(1) Kupera pamanja kwa ma valve osindikiza pamwamba
Kupera pamanja kwa malo osindikizira ma valve kumachitika pogwiritsa ntchito zida zosavuta zopera. Pamanja akupera zambiri ntchito chonyowa akupera, m`kati chonyowa akupera zambiri kuwonjezera woonda abrasive wothandizila, kuti blunt abrasive particles kuchokera pamwamba ntchito, ndi nthawi zonse kuwonjezera abrasive particles, kuti apamwamba akupera dzuwa. Pamalo osindikizira omwe amafunikira kulondola kwambiri komanso kumaliza, nthawi zina mbale yamchenga yopanikizidwa imagwiritsidwa ntchito popera.
① Kupera pamanja kwa ndege yosindikiza ya thupi la valve. The vavu thupi chisindikizo ndege ili mu valavu thupi patsekeke, akupera ndi kovuta. Kawirikawiri, chida chogaya chofanana ndi chimbale chokhala ndi dzenje lalikulu chimagwiritsidwa ntchito, chomwe chimayikidwa pamtunda wosindikizira wamkati wamkati, ndiyeno chogwirira chachitali chokhala ndi mutu wapakati chimagwiritsidwa ntchito kuyendetsa diski yogaya kuti iwonongeke. Pali cylindrical bwana kapena gasket wotsogolera pa mbale mphero kuteteza chida chopera kuti asachoke pa mphete yosindikiza pang'ono panthawi yopera ndikuyambitsa kugaya kosiyana. Chithunzi 8-6-5 chikuwonetsa CHITSANZO CHA kugaya pamanja KWA VALVE thupi la valavu ya pachipata ndi valavu ya globe.
Chithunzi 8. Kupera pamanja kwa ndege 1 6 5
Asanayambe kupera pansi pa ndege yosindikizira ya thupi la valve, nkhope yogwira ntchito ya chida chopera iyenera kupukutidwa ndi mafuta a palafini kapena mafuta, ndipo m'mphepete mwa ndege ndi burr pazitsulo zosindikizira za thupi ziyenera kuchotsedwa, ndiyeno zokutira ndi wosanjikiza. wa abrasive pamwamba osindikiza. Pestle mu mtsempha wa thupi, kuti mosamala agwirizane pa kusindikiza pamwamba, ndiyeno ntchito chogwirira yaitali kuti pestle mbale kwa zabwino ndi zoipa malangizo.
Kutembenuza mayendedwe. Tembenuzani mozungulira 180 °, motsatana ndi 90 °, ndi zina zotero. Nthawi zambiri, mutatha kutembenuka kangapo kakhumi, ma abrasive particles mu abrasive agent akhala akuphwanyidwa, kotero mbale yopera iyenera kukwezedwa nthawi zambiri kuti iwonjezere abrasive agent.
Kupanikizika kogaya kuyenera kukhala kofanana ndipo kusakhale kwakukulu. Kupanikizika kwa kafukufuku wovuta kungakhale kwakukulu: kafukufuku wabwino ayenera kukhala wochepa. Chisamaliro chiyenera kulipidwa kuti musagwiritse ntchito mphamvu ndikupangitsa chida chopera pang'ono kuchoka pa ndege yosindikiza. Pambuyo akupera kwa nthawi, kuti aone roughness wa workpiece. Panthawi imeneyi, mukhoza kutenga pestle, misozi kusindikiza pamwamba ndi palafini kapena mafuta, ndiyeno modekha kuika chimbale woboola pakati anayendera lathyathyathya mbale pa kusindikiza pamwamba ndi modekha kuukoka ndi dzanja. Pambuyo pochotsa mbale yathyathyathya, zizindikiro zolumikizana pamtunda wosindikiza zimatha kuwonedwa. Pamene mphete yosindikizira ikuwonetsa kukhudzana mofanana, ndipo chiŵerengero cha kukula kwa ma radial kukhudzana ndi kutalika kwa kusindikiza pamwamba (ndiko kuti, kusindikiza pamwamba ndi mbale yoyesera ya zochitikazo) kufika pamtengo wotchulidwa panthawiyi, roughness ikhoza kukhala. amaonedwa kuti ndi oyenerera.
② Kupera pamanja kwa mbale yachipata ndi ndege yosindikizira ya valve. Ndege zosindikizira za chipata, diski ndi mpando zimatha kugwedezeka pamanja pogwiritsa ntchito mbale yopera. Asanayambe ntchito, mbale yoyera imakutidwa mofanana ndi wosanjikiza wa abrasive, ndipo workpiece imamangiriridwa ku mbaleyo ndipo imatha kuzunguliridwa ndi kusuntha molunjika ndi dzanja, monga momwe tawonetsera pa Chithunzi 8-6-6, kapena chithunzi. 8 mwendo. The akupera dzuwa akhoza bwino chifukwa akupera zoyenda malangizo amasinthidwa mosalekeza ndi abrasive particles akupera mu njira yatsopano.
Chithunzi 8. Kupera pamanja kwa malo osindikizira a chipata cha 6-6
Pofuna kupewa kuvala osagwirizana wa mbale akupera, musati nthawi zonse akupera pakati mbale, koma mosalekeza kusintha mbali pamwamba pa mbale, apo ayi mbale akupera posachedwapa kutaya ndege kulondola.
The DISC ndi VALVE mpando youma mphero mawonekedwe, kusindikiza ndege pa circumference kulemera ndi wosagwirizana, akupera ayenera kukhala mu mapeto ake woonda (wotchedwanso "kamutu kakang'ono") kuwonjezera mphamvu pang'ono lalikulu, kotero kuti annular kusindikiza ndege kuthamanga yunifolomu. , kuti musapangitse workpiece mphero ngodya kusintha.
Throttle valve disc akupera angagwiritsidwe ntchito ndi dzenje mphete litayamba akupera chida, njira akupera ndi valavu kusindikiza pamwamba ndi chimodzimodzi.
Taper kusindikiza pamwamba pamanja akupera. Kupera chosindikizira chosindikizidwa kumafuna kugwiritsa ntchito ndodo kapena manja. ZOCHITA ZA PESTLE NDI MANKHWALA A PESTLE ZIZINDIKIRANI NDI NTCHITO YA VALVA yosindikiza nkhope kapena nkhope yosindikiza ma disc, motsatana. Payenera kukhala kozungulira kozungulira pa kondomu ya ndodo yoperayo ndi manja opera a tambala wogaya ndi pulagi kuti musunge zowononga kwambiri. Pogaya thupi la valavu ya globe, chifukwa chosindikizira ndi chachifupi kwambiri komanso chosakhazikika, nthawi zambiri amawonjezedwa mbale yolondolera pa flange mu thupi la valve kuti ndodo yopera ikhale yokhazikika. Chithunzi 8-6-7 chikuwonetsa chithunzithunzi cha kugaya pamanja pamakona osindikizira.
Chithunzi 8-6-7 M'manja akupera kwa conical kusindikiza pamwamba
Pamene akupera conical kusindikiza pamwamba, ntchito wosanjikiza wothandizila abrasive wogawana pa misozi akupera chida, mopepuka kuika pamwamba pa workpiece, ndiye akanikizire akupera chida ndi dzanja ndi atembenuza akupera chida: pambuyo 3 mpaka 4 milungu kasinthasintha. , chida chopera chikhoza kutulutsidwa kuti chisinthe malo ozungulira musanagaye. Ma Abrasives ayenera kuwonjezeredwa pafupipafupi panthawi yopera.
The taper wa akupera ndodo akupera tambala thupi ndi pogaya manja a pogaya pulagi ayenera kukhala zogwirizana, apo ayi kudzakhala kosavuta kutayikira pakati tapered kusindikiza pamwamba pambuyo akupera.
Chimodzi mwazinthu zofunika kwambiri pakupanga ma valve ndi kusankha kwa zinthu ndi kutentha kwa ntchito ya valve. Kuti akhazikitse kutentha koyenera kogwira ntchito kwa chinthu chachikulu cha valve, kutentha koyenera kogwira ntchito ndi zofunikira zokhudzana ndi zinthu zazikulu za valve zimatchulidwa kuchokera kuzinthu zamitundu yosiyanasiyana yazitsulo ndi No. kuyang'anira zinthu za valve. Kuonjezera apo, kuchokera kuzinthu za kayendetsedwe kaumisiri, kayendetsedwe ka kupanga ndi kugula zinthu, zida za valve zomwe zili ndi dongosolo loyenera kwambiri zimasankhidwa.
1 mwachidule
Chimodzi mwazinthu zofunika kwambiri pakupanga ma valve ndi kusankha zinthu ndi kutentha kwa valve. Kuti akhazikitse kutentha koyenera kogwira ntchito kwa chinthu chachikulu cha valve, kutentha koyenera kogwira ntchito ndi zofunikira zokhudzana ndi zinthu zazikulu za valve zimatchulidwa kuchokera kuzinthu zamitundu yosiyanasiyana yazitsulo ndi No. kuyang'anira zinthu za valve. Kuonjezera apo, kuchokera kuzinthu za kayendetsedwe kaumisiri, kayendetsedwe ka kupanga ndi kugula zinthu, zida za valve zomwe zili ndi dongosolo loyenera kwambiri zimasankhidwa.
2.1 ** zinthu za valve kutentha
** kutentha valavu [-254 (madzi wa hydrogen) ~ -101 ℃ (ethylene)] nkhani yaikulu ayenera kusankha nkhope likulu kiyubiki lattice austenitic zosapanga dzimbiri zitsulo, mkuwa aloyi kapena zitsulo zotayidwa aloyi, otsika kutentha ake makina katundu pambuyo kutentha mankhwala, makamaka kutentha otsika kuuma kwamphamvu kuyenera kukwaniritsa zofunikira za muyezo.
Zitsulo zosapanga dzimbiri za austenitic zitha kugwiritsidwa ntchito kupanga ma valve ofunda. ASTM A351 CF8M, CF3M, CF8 ndi CF3, ASTM A182 F316, F316L, F304 ndi F304L, ASTM A433 316, 316L, 304, 304L ndi CF8D (yopangidwa ndi Lanzhou High Pressure G19 code, fakitale G3, Valve9, Valve 8, 316L, 304, 304L ndi CF8D). ** Thupi, chivundikiro, chipata kapena diski ya valavu yotentha iyenera kukhala cryogenized mu madzi asatrojeni (-196 ℃) asanatsirize.
Nthawi yotumiza: Aug-24-2022
