Mu mafakitale olondola kwambiri—kuyambira ndege ndi magalimoto mpaka mphamvu ndi makina olemera—kufunikira kolondola sikuchepa chifukwa chakuti ziwalozo zikukulirakulira. M'malo mwake, zigawo zazikulu monga ma turbine housings, ma gearbox casings, kapena ma structural weldments nthawi zambiri zimakhala ndi kulekerera kolimba kwa geometric poyerekeza ndi kukula kwawo, zomwe zimapangitsa kuti muyeso wodalirika usakhale wovuta kokha, komanso wofunikira kwambiri. Komabe, malo ambiri amanyalanyaza chinthu chofunikira kwambiri pakuwunika kwakukulu: kukhazikika ndi kusalala kwa malo owunikira omwe akugwiritsa ntchito. Ngati mukugwira ntchito ndi granite surface plate yayikulu, mumamvetsetsa kale kufunika kwake—koma kodi mukupeza magwiridwe antchito onse omwe angathe kupereka?
Chowonadi ndi chakuti, ambale ya granitekokha sikokwanira. Popanda chithandizo choyenera, kuwongolera zachilengedwe, ndi kuphatikiza mu njira yoyezera zinthu yolinganizidwa, ngakhale slab yapamwamba kwambiri ingathe kuchita bwino—kapena choipa kwambiri, kuyambitsa zolakwika zobisika. Ndicho chifukwa chake opanga otsogola samangogula mbale; amaika ndalama mu dongosolo lathunthu—makamaka, kulondolambale ya pamwamba pa graniteyokhala ndi choyimilira chopangidwa kuti chikhale cholimba, chosavuta kugwiritsa ntchito, komanso chokhazikika kwa nthawi yayitali. Chifukwa mbale yanu ikagwa pang'ono ngakhale kulemera kwake kapena kugwedezeka kuchokera ku makina apafupi, kuwerenga kulikonse kwa kutalika, kuyang'ana kulikonse kwa sikweya, ndi kukhazikika kulikonse kumakhala kokayikitsa.
Granite yakhala muyezo wagolide wa malo olondola kwa zaka zoposa 70, ndipo pazifukwa zomveka zasayansi. Kapangidwe kake kakuda kosalala, kopanda mabowo kamapereka kukhazikika kwapadera, kutentha kochepa (nthawi zambiri 6–8 µm pa mita imodzi pa °C), komanso kufinya kwachilengedwe kwa kugwedezeka kwa makina - zonsezi ndizofunikira potsimikizira mawonekedwe pazinthu za matani ambiri. Mosiyana ndi matebulo achitsulo chopangidwa kapena achitsulo opangidwa, omwe amapindika ndi kusintha kwa kutentha, amawononga pakapita nthawi, ndikusunga kupsinjika kwamkati, granite imakhalabe yopanda kanthu pansi pa mikhalidwe yabwinobwino ya workshop. Ichi ndichifukwa chake miyezo yapadziko lonse lapansi monga ASME B89.3.7 ndi ISO 8512-2 imatchula granite ngati chinthu chokhacho chovomerezeka cha mbale za pamwamba za Giredi 00 mpaka Giredi 1 zomwe zimagwiritsidwa ntchito poyesa ndikuwunika molondola kwambiri.
Koma sikelo imasintha chilichonse. Plate yaikulu ya granite pamwamba—monga 2000 x 4000 mm kapena kuposerapo—ikhoza kulemera makilogalamu oposa 2,000. Pa kulemera kumeneko, momwe imachirikizidwira imakhala yofunika kwambiri monga momwe imakhalira yosalala. Kapangidwe kosayenera ka malo oimikapo (monga, malo osalingana a miyendo, mafelemu osinthasintha, kapena kusakwanira kwa ma brace) kungayambitse kupatuka komwe kumaposa mipiringidzo yololeza. Mwachitsanzo, mbale ya Giredi 0 yolemera 3000 x 1500 mm iyenera kukhala yosalala mkati mwa ±18 microns pamwamba pake ponseponse motsatira ISO 8512-2. Ngati malo oimikapo amalola ngakhale kupendekeka pang'ono pakati, chizindikiro chimenecho chimasokonekera nthawi yomweyo—osati chifukwa cha granite yofooka, koma chifukwa cha ukadaulo wosauka.
Apa ndi pomwe gawo la "ndi choyimilira" lambale yolondola ya granite pamwambaNdi choyimiliracho chimasanduka kuchokera ku chowonjezera kukhala chofunikira chachikulu. Choyimiliracho chopangidwa ndi cholinga sichili chimango chokha—ndi dongosolo lopangidwa pogwiritsa ntchito kusanthula kwa zinthu zocheperako kuti zigawike katundu mofanana, kuchepetsa kugwedezeka, ndikupereka chithandizo chokhazikika cha mfundo zitatu kapena zambiri chogwirizana ndi mfundo zachilengedwe za mbaleyo. Zoyimilira zapamwamba zimakhala ndi mapazi osinthika, olekanitsa kugwedezeka, zolimbitsa zolumikizirana, komanso mwayi wolowera bwino kwa ogwiritsa ntchito ndi zida. Zina zimaphatikizanso njira zoyambira kuti zichotse malo osakhazikika—ofunikira kwambiri pamagetsi kapena malo oyeretsa.
Ku ZHHIMG, tawona tokha momwe makina oyenera amasinthira zotsatira. Wopanga ma turbine amphepo ku North America adavutika ndi miyeso yosagwirizana ya bore alignment pa maziko a nacelle. Tebulo lawo la granite lomwe linalipo linali pa chimango chachitsulo chogwiritsidwanso ntchito chomwe chinkagwedezeka pansi pa katundu. Atakhazikitsa mbale yayikulu yovomerezeka ya granite yomwe idayikidwa pa choyimilira chopangidwa mwapadera chokhala ndi mapazi olinganizidwa bwino, kusiyana kwawo kwa ma inter-operators kunatsika ndi 52%, ndipo kukanidwa kwa makasitomala kunatha kwathunthu. Zida sizinasinthe - maziko okha.
Chofunikanso ndi momwe machitidwewa amagwirizanirana ndi ntchito za tsiku ndi tsiku. Mbale yopangidwa bwino ya granite yokhala ndi choyimilira imakweza malo ogwirira ntchito kufika kutalika koyenera (nthawi zambiri 850–900 mm), kuchepetsa kutopa kwa wogwiritsa ntchito panthawi yayitali yowunikira. Imapereka mwayi wowonekera bwino kuchokera mbali zonse kuti manja a CMM, ma laser tracker, kapena zida zamanja azitha kugwiritsidwa ntchito. Ndipo chifukwa choyimiliracho chimalekanitsa granite ndi kugwedezeka kwa pansi—komwe kumakhala kofala pafupi ndi makina osindikizira, mizere yopondaponda, kapena mayunitsi a HVAC—imasunga umphumphu wa zizindikiro zoyimilira zobisika kapena ma electronic height masters.
Kusamaliranso kumachitanso gawo lina. Ngakhale granite yokha siifuna chisamaliro chochuluka kupatula kuyeretsa nthawi zonse ndi isopropyl alcohol, choyimiliracho chiyenera kuyang'aniridwa nthawi ndi nthawi kuti chiwone ngati bolt ili ndi mphamvu, mulingo, komanso kapangidwe kake. Ndipo monga momwe mbaleyo imakhalira, choyimilira chonsecho chiyenera kutsimikiziridwa nthawi ndi nthawi. Kuyesa kwapadera kwa pamwamba pa granite pamakina akuluakulu sikungophatikizapo kuyika mapu osalala a granite, komanso kuwunika kukhazikika kwa dongosolo lonse - kuphatikizapo kutembenuka komwe kumayima pansi pa katundu woyeserera.
Mukasankha mbale yaikulu ya granite pamwamba, yang'anani kupitirira kukula ndi mtengo. Funsani:
- Chitsimikizo chonse cha ASME B89.3.7 kapena ISO 8512-2, kuphatikizapo mapu a contour of enit flatness deviation
- Zolemba za miyala ya granite (yopyapyala, yochepetsedwa kupsinjika, yopanda ming'alu)
- Zojambula zaukadaulo za choyimiliracho, zomwe zikuwonetsa mawonekedwe othandizira ndi mawonekedwe a zinthuzo
- Deta yowunikira kugwedezeka ngati ikugwira ntchito m'malo osinthika
Ku ZHHIMG, timagwirizana ndi ma workshop omwe amagwiritsa ntchito ma granite akuluakulu ngati nsanja zolumikizirana za metrology—osati zinthu zogulitsa. Mbale iliyonse yolondola ya granite yokhala ndi choyimilira chomwe timapereka imayesedwa payekhapayekha pansi pa katundu, yokonzedwa kuti itsatidwe, komanso yotsatiridwa ndi satifiketi yoyeserera ya NIST. Sitikhulupirira "pafupi mokwanira." Mu metrology yayikulu, palibe malo oti tigwirizane.
Chifukwa ngati gawo lanu limawononga ndalama zisanu ndi chimodzi ndipo kasitomala wanu akufuna kuti liperekedwe popanda vuto lililonse, malo anu ofunikira sangaganizidwenso. Liyenera kukhala chuma chanu chodalirika kwambiri—chitsimikizo chachinsinsi cha chowonadi m'dziko lomwe ma microns ndi ofunika.
Dzifunseni nokha: kodi zomwe mwakonza panopa zikugwirizanadi ndi zolinga zanu zolondola—kapena zikuwononga mwakachetechete? Ku ZHHIMG, timakuthandizani kukhala ndi chidaliro kuyambira pansi, ndi makina a granite opangidwa mwaluso omwe amapereka kulondola komwe mungathe kuyeza, kudalira, ndi kuteteza.
Nthawi yotumizira: Disembala-09-2025