Chipinda chachikulu cha mchenga
Zipinda zazikulu-zopukutira mchenga ndi zida zolemetsa kwambiri-zogwiritsidwa ntchito kwambiri m'mafakitale, zomwe zimagwiritsidwa ntchito kwambiri poyeretsa moyenera komanso moyenera komanso pokonza-kukonza ziwiya zazikulu ndi zolemetsa. Pansipa, ndikupatsani kusanthula kwatsatanetsatane kuchokera kuzinthu ziwiri: magawo ogwiritsira ntchito komanso luso lakugwiritsa ntchito.
I. Mipando Yaikulu Yazipinda Zazikulu-zopukutira mchenga
Ntchito yaikulu ya chipinda chachikulu cha mchenga ndikuyeretsa ndi kuthetsa kupsinjika maganizo, ndikupereka maziko abwino a njira zotsatila monga kupopera mankhwala, kupaka, ndi kumanga.
Kapangidwe kachitsulo ndi gawo lomanga
Milatho, malo opangira magetsi, ndi matanki osungira: Chotsani sikelo, dzimbiri, ndi zokutira zakale kuti mukwaniritse ukhondo wa Sa2.0-2.5 kapena kupitilira apo.
Kukonzekera kokhazikika kwa zitsulo zomangira ndi H-mitanda musanapopere zothira-zoti zisadzimbiri kapena zosatentha moto.
Ship and Ocean Engineering
Zigawo za Hull, decks ndi cabins: zazikulu-zochotsa dzimbiri komanso kuchotsa utoto wakale.
Mapulatifomu ndi ma jekete akunyanja: Kuletsa-kuwononga dzimbiri m'malo ovuta a Marine.
Mayendedwe
Kuyeretsa pamwamba pazokonza zazikulu kapena kumanga kwatsopano ma locomotives ndi mathirakitala (makamaka matanki).
Mafelemu amagalimoto akulu, zida zamakina omanga: monga zofukula, ma crane booms, ndi zina zambiri.
Mphamvu ndi Zida Zolemera
Kuphulitsa mchenga kwa makoma amkati ndi akunja a nsanja zopangira mphamvu yamphepo ndi njira yofunika kwambiri polimbana ndi -zopaka dzimbiri.
Zotengera zoponderezana, ma boilers, ndi zida zamankhwala: kuyeretsa msoko wa weld, kuchotsa mkati mwa khoma la oxide sikelo, ndikuwongolera mphamvu za kutopa.
Zopangira zazikulu ndi zopangira: Chotsani njere zamchenga ndi sikelo ya oxide kuti muwonetse zolakwika zapamtunda.
Zamlengalenga
Zida za ndege, ma rocket casings: Pre{0}}mankhwala ochepetsa kupsinjika, kulimbitsa kapena kulumikizana kwazinthu zinazake.
Ii. Maluso Ofunika Kwambiri Kagwiritsidwe Ntchito Ndi Njira Zabwino Zazipinda Zazikulu-zothira mchenga
Kugwiritsa ntchito moyenera ndikusamalira ndikofunikira kwambiri pakuwonetsetsa kuti chipinda chopumira mchenga chikuyenda bwino, chopanda ndalama komanso chotetezeka.
(1) Kukonzekera ndi kukonzekera musanagwire ntchito
Kukonzekera kwa workpiece ndi kukweza
Konzani njira zolowera ndi zotuluka za chogwirira ntchito komanso malo ozungulira / oyenda panthawi ya mchenga kuti muwonetsetse kuti malo onse atsekedwa bwino.
Zowonjezera-zikuluzikulu zazitali (monga masilinda a tower), m'pofunika kugwirizana ndi njanji zapansi m'nyumba ndi ma trolleys opukutira mchenga popanga mchenga.
Gwiritsani ntchito mokwanira kutalika kwa chipinda chopukutira mchenga ndikugwiritsa ntchito-njira zoyimitsira zosanjikiza zingapo kuti mugwire tizigawo ting'onoting'ono, potero muwongolere kuchuluka kwa kagwiritsidwe ntchito ka malo.
Kusankha abrasive ndi kukonzekera
Sankhani malinga ndi zofunikira za ndondomeko:
Metal abrasives (mchenga wachitsulo, kuwombera waya) : Kulimba kwambiri, moyo wautali wautumiki, wogwiritsidwanso ntchito, woyenera kulimbikitsa chithandizo ndikuchotsa dzimbiri.
Non-Metallic abrasives (brown corundum, quartz sand, garnet) : Ali ndi kulimba kwambiri komanso mphamvu yodula kwambiri, ndipo ndi yoyenera kuyika dzimbiri molimba kwambiri kapena kukonza miyala. Komabe, zimatulutsa fumbi lambiri ndipo zimatha msanga.
Ma abrasives atsopano akagwiritsidwa ntchito kwa nthawi yoyamba, amafunikira "kuthamanga mopanda kanthu" kuti achotse fumbi ndi zinyalala mkati mwake.
Kusakaniza kwa abrasive: Kugwiritsa ntchito ma abrasives atsopano ndi akale mu gawo linalake (monga 3: 7) sikungathe kuonetsetsa kuti kudula bwino komanso kuchepetsa ndalama.
(2) Njira Zachikulu pakupanga mchenga
Kuthamanga kwa mpweya ndi kayendetsedwe ka kayendedwe kake
Kuthamanga kwa mpweya kumagwira ntchito ngati gwero la mphamvu: kawirikawiri, kuthamanga kwa ntchito kuyenera kusungidwa pakati pa 0,6 ndi 0.8 MPa. Kuthamanga kochepa kumabweretsa kutsika koyeretsa bwino. Kupanikizika kwambiri kungathe kuthyola zowonongeka, kufulumizitsa kutayika kwa zida ndi kung'ambika, ndipo chogwirira ntchito chingathenso kupunduka.
Kuthamanga kwachangu ndiye chinsinsi chakuchita bwino: Sinthani valavu ya abrasive kuti muwonetsetse kuti yunifolomu ndi yopitilira ma abrasive. Kuthamanga kosasunthika kungayambitse roughness yosagwirizana.
Utsi njira ntchito mfuti
Mphepete: Mfuti yopopera nthawi zambiri imakhala pa Engle ya digirii 70 mpaka 80 pamwamba pa chogwirira ntchito (ndicholetsedwa kwambiri kupopera pa ngodya yopingasa ya digirii 90, chifukwa zingayambitse ziboliboli zakuya kwambiri). Pamalo osinthika kapena mbale zoonda, Angle imatha kukhala yaying'ono.
Kutalikirana: Nthawi zambiri imasungidwa pakati pa 300 ndi 700 mm. Mtundawu uli pafupi kwambiri, zomwe zimapangitsa kuti pakhale kukwera kwambiri komanso kuuma kwakukulu. Mtunda ndi wautali kwambiri, mphamvu zimatayika ndipo mphamvu zimakhala zochepa.
Liwiro la kayendedwe ndi kanjira: Sungani liwiro lokhazikika komanso lofanana, ndipo gwiritsani ntchito kusesa mopingasa kapena kwautali (ndi kuphatikizika kwa pafupifupi 1/3) kuti mupewe zosiyidwa kapena kupopera mbewu mankhwalawa kwanuko.
Kufananiza kwachiwonetsero
Gwiritsani ntchito zitsanzo za ISO 8501-1 kapena SSPC-Vis nthawi iliyonse kuti muyerekezere ukhondo pambuyo pa sandblasting (monga Sa 2.0, Sa 3).
Gwiritsani ntchito chofananira cha roughness kapena tepi yobwereza kuti muyese mbiri yapamtunda (kuuma) kuti muwonetsetse kuti ikukwaniritsa zofunikira zokutira (nthawi zambiri ma 50-100 ma microns).
(3) Kukonza Zida ndi kukhathamiritsa kwadongosolo
Njira yochotsera fumbi ndiyo njira yamoyo:
Tsiku ndi tsiku: Yang'anani kupsinjika kwa katiriji / thumba lasefa ndikutsuka phulusa munthawi yake.
Nthawi zonse: Onetsetsani ngati pulse reverse system ikugwira ntchito bwino kuti muwonetsetse kuti fumbi likuchotsa bwino. Dongosolo lolephera kuchotsa fumbi limatha kupangitsa kuti pakhale mawonekedwe otsika kwambiri, omwe amawononga thanzi komanso amakhudza kuphulika kwa mchenga.
Abrasive kuchira ndi kusanja dongosolo
Yang'anani nthawi zonse chotengera cha scraper ndikutsuka zinyalala pazenera kuti musatseke.
Yang'anani mphamvu ya maginito ya olekanitsa (ngati ma abrasives achitsulo amagwiritsidwa ntchito) kuti muwonetsetse kuti fumbi, zinyalala ndi ma abrasives ogwiritsidwa ntchito amatha kupatulidwa bwino.
Fumbi ndi tinthu tating'onoting'ono timayenera kuchotsedwa mosamalitsa ku dongosolo lobwezeretsa nthawi zonse. Ndizomwe zimayambitsa kuchepa kwa mchenga wa mchenga ndi kuvala kwa zida.
Thirani mfuti ndi kuvala-zigawo zosagwira ntchito
Khazikitsani ndondomeko yosinthira nthawi zonse, makamaka yovala-zigawo zosagwira ntchito monga ma nozzles, mapaipi ophulitsa mchenga, ndi machubu a Venturi. Ma nozzles owonongeka amatha kusokoneza kwambiri kutuluka kwa abrasive, kuchepetsa mphamvu yake ndi 20%.
Milomo yopangidwa ndi zinthu zolimba kwambiri-zokhala ngati ceramic kapena boron carbide imakhala ndi moyo wautali kuposa zomwe zimapangidwa ndi tungsten carbide wamba.
(4) Chitetezo ndi Chitetezo Chachilengedwe
Chitetezo cha anthu
Ogwiritsa ntchito ayenera kuvala zovala zodzitchinjiriza zoteteza mchenga (zokhala ndi chisoti chakunja kwa gasi), magalavu olemera-ndi nsapato zachitetezo.
Onetsetsani kuti mpweya wa suti yotetezayo ndi woyera, wowuma komanso mpweya wokwanira wokwanira.
Kuwongolera chilengedwe
Pitirizani kupanikizika pang'ono m'chipinda chopukutira mchenga kuti fumbi lisatuluke.
Poyeretsa aluminium alloy ndi magnesium alloy alloy, zida zomwe zimagwiritsidwa ntchito ziyenera kutetezedwa kuphulika-.
Khazikitsani madera achitetezo omveka bwino komanso malo ogwirira ntchito, ndipo-omwe sali ogwira ntchito ndi oletsedwa kulowa.
Kutaya zinyalala
Zotsalira za fumbi ndi zinyalala zomwe zasonkhanitsidwa ziyenera kutengedwa ngati zinyalala zolimba zamafakitale ndikutayidwa potsatira malamulo achitetezo amderalo, makamaka akakhala ndi zitsulo zolemera kapena zida zakale za utoto.
Chidule
Kugwiritsa ntchito bwino-zipinda zopumira mchenga zitha kufotokozedwa mwachidule motere:
-Kukonzekera: Kusanjidwa koyenera ndi kusankha kwa abrasive yoyenera.
Kuwongolera njira: Khazikitsani kuthamanga kwa mpweya, kuwongolera kuthamanga kwa mpweya, kugwira ntchito moyenera, ndikuyerekeza pafupipafupi.
Kukonza ndi kutsimikizira: Kuteteza fumbi, chitsimikizo chobwezeretsanso zinthu, ndikusinthanso zigawo zosagwira ntchito-.
Mfundo yofunika kwambiri pachitetezo: Kutetezedwa kolimba, kusunga kupanikizika koyipa, komanso kutaya zinyalala moyenera.
Potsatira mfundo ndi njira zimenezi, osati khalidwe la sandblasting ndi kupanga dzuwa kuti kwambiri bwino, komanso kumwa abrasives ndi zipangizo kukonza ndalama akhoza makamaka kuchepetsedwa, kuonetsetsa chitetezo ndi chilengedwe ubwenzi ntchito.
