Ndi Njira Zabwino Zotani Zopangira Machining ndi Kusamalira Mimbale Zapamwamba za Granite?

Granite Surface Plate Machining and Maintenance Guide: Chimbale chapamwamba cha granite cholondola chimafunikira makina apadera ndi kukonza kuti zitsimikizire kulondola kwake komanso moyo wautali. Asanayambe Kupukutira, gawo la granite liyenera kukonzedwa koyamba ndikusintha kopingasa kutengera mfundo zamakona atatu. Pambuyo pogaya chopingasa, ngati makina a CNC sangathe kukwaniritsa kulondola kofunikira-kawirikawiri kufika kulondola kwa Giredi 0 (kulekerera kwa 0.01mm/m monga kwafotokozedwera mu DIN 876) -kumaliza kwa manja kumakhala kofunikira kuti mukwaniritse magiredi olondola kwambiri monga Giredi 00 (0.005mm/m kulolerana pa ASTM B897).

Njira yopangira makina imakhala ndi njira zingapo zofunika. Choyamba, kugaya movutikira kumakhazikitsa kukhazikika koyambira, ndikutsatiridwa ndi kumaliza kwachiwiri kuchotsa zizindikiro za makina. Kupera kolondola, komwe nthawi zambiri kumachitidwa pamanja, kumawongolera pamwamba kuti akwaniritse kulekerera kwa flatness komwe kumafunidwa komanso kuuma kwapamtunda (Ra mtengo wa 0.32-0.63μm, pomwe Ra amayimira kusamutsidwa kwapang'onopang'ono kwa mawonekedwe apamwamba). Pomaliza, kuyang'anitsitsa mosamala kumatsimikizira kutsatiridwa ndi miyezo yaukadaulo, yokhala ndi miyeso yoyikidwa bwino pama diagonal, m'mphepete, ndi mizere yapakati - nthawi zambiri mfundo 10-50 kutengera kukula kwa mbale - kuti zitsimikizire kulondola kofanana.

Kugwira ndi kukhazikitsa kumakhudza kwambiri kulondola. Chifukwa cha kuuma kwa granite (kuuma kwa Mohs 6-7), kukweza kosayenera kungayambitse kupunduka kosatha. Pamapulogalamu ofunikira omwe amafunikira kulondola kwa Grade 00, kuyika manja kwapambuyo ndikofunikira kuti mubwezeretse kulondola komwe kunasokonekera panthawi yamayendedwe. Kusamalira mwatsatanetsatane uku kumasiyanitsa mbale za granite zapamwamba kwambiri kuchokera kumitundu yokhazikika yamakina.

Zochita zosamalira zimakhudza mwachindunji magwiridwe antchito ndi moyo wautali. Yambani ndikuyeretsa bwino pogwiritsa ntchito zotsuka za pH zopanda ndale - pewani zinthu za acidic zomwe zimatha kuyika pamwamba. Kuyesa kwapachaka ndi laser interferometers, kutsatiridwa ndi miyezo ya NIST, kumatsimikizira kulondola kopitilira. Mukayika zida zogwirira ntchito, lolani kuti kutentha kukhale kofanana (nthawi zambiri mphindi 15-30) kuti mupewe zolakwika za muyeso kuchokera ku kusiyana kwa kutentha. Osasuntha zinthu zovunda pamwamba pake, chifukwa izi zimatha kupanga tinthu tating'onoting'ono tomwe timakhudza flatness.

Malangizo ogwiritsiridwa ntchito moyenera akuphatikizapo kulemekeza malire a katundu kuti apewe kuwonongeka kwa kamangidwe, kusunga malo okhazikika (kutentha kwa 20 ± 2 ° C, chinyezi 50 ± 5%), ndi kugwiritsa ntchito zida zonyamulira zodzipatulira kupewa kuwonongeka kwa ndege. Mosiyana ndi zitsulo zachitsulo, kukhazikika kwa kutentha kwa granite (0.01ppm/°C) kumachepetsa kukhudzidwa kwa chilengedwe, koma kusintha kwadzidzidzi kutentha kuyenera kupewedwabe.

Monga chida choyambira mu precision metrology, mbale zotsimikizika za granite zapamtunda (zovomerezeka za ISO 17025) zimakhala ngati muyeso wazoyezera mozama. Kukonza kwake sikufuna khama lochepa—kungopukuta ndi nsalu yopanda linte mukatha kugwiritsira ntchito—palibe zokutira zapadera kapena mafuta odzola. Potsatira njira zamakina ndi chisamaliro izi, mbale zam'mwamba za granite zolondola zimapereka magwiridwe antchito odalirika kwazaka zambiri, kuwapangitsa kukhala ofunikira kwambiri m'ma laboratories oyesa, kupanga zakuthambo, ndi ntchito zaukadaulo wapamwamba kwambiri.