Kodi Precision Imayamba Bwanji? Kusanthula Kupanga ndi Kukonza Granite Slab

Mu kupanga ndi kuyerekeza zinthu molondola kwambiri, granite slab ndiye maziko osatsutsika—chisonyezero cha zero-point cha muyeso wa miyeso. Kutha kwake kugwira ndege yofanana ndi yabwino si khalidwe lachilengedwe lokha, koma zotsatira za njira yowongolera bwino mawonekedwe, kutsatiridwa ndi kukonza mwadongosolo komanso nthawi zonse. Koma kodi ulendo womaliza womwe granite slab imatenga kuti ikwaniritse ungwiro woterewu ndi wotani, ndipo ndi njira ziti zofunika kuti ipitirire? Kwa mainjiniya ndi oyang'anira khalidwe, kumvetsetsa chiyambi cha kulondola kumeneku komanso njira zofunikira zosungira ndikofunikira kwambiri kuti zinthu zisunge bwino.

Gawo 1: Njira Yopangira Mawonekedwe—Kusalala kwa Uinjiniya

Ulendo wa granite slab, kuchokera pa buloko lodulidwa bwino kupita pa plate yodziwika bwino pamwamba, umaphatikizapo magawo angapo opera, kukhazikika, ndi kumaliza, iliyonse yopangidwa kuti ichepetse pang'onopang'ono zolakwika za kukula.

Poyamba, pambuyo podula, slab imayikidwa mu Rough Shaping and Grinding. Gawoli limachotsa zinthu zambiri kuti zitsimikizire mawonekedwe omaliza komanso kusalala kosalala. Chofunika kwambiri, njirayi imathandizanso kutulutsa mphamvu zambiri zomwe zimatsalira mumwala panthawi yofukula miyala ndi kudula koyamba. Mwa kulola slab "kukhazikika" ndikukhazikikanso pambuyo pa gawo lililonse lalikulu lochotsa zinthu, timaletsa kusuntha kwa mtsogolo, ndikutsimikizira kukhazikika kwa nthawi yayitali.

Kusintha kwenikweni kumachitika panthawi ya The Art of Precision Lapping. Kulumikiza ndi njira yomaliza, yapadera kwambiri yomwe imakonza malo osalala pang'ono kukhala malo ovomerezeka. Izi si kugaya kwamakina; ndi ntchito yosamala, yothamanga pang'ono, komanso yothamanga kwambiri. Timagwiritsa ntchito mankhwala osalala, otayirira—nthawi zambiri diamondi slurry—omwe amapachikidwa mu sing'anga yamadzimadzi, omwe amagwiritsidwa ntchito pakati pa pamwamba pa granite ndi mbale yolimba yolumikizira chitsulo. Kuyendako kumayendetsedwa mosamala kuti zitsimikizire kuti zinthuzo zachotsedwa mofanana pamwamba. Kuchuluka kumeneku, kobwerezedwa pamanja komanso m'makina m'magawo obwerezabwereza, pang'onopang'ono kumakonza kusalala kwa mkati mwa ma micron kapena ngakhale ma sub-micron (kukwaniritsa miyezo yokhwima monga ASME B89.3.7 kapena ISO 8512). Kulondola komwe kumapezeka pano sikukhudza makina koma kukhudza luso la wogwiritsa ntchito, lomwe timaliona ngati luso lofunika kwambiri, losasinthika.

Gawo 2: Kukonza—Chinsinsi cha Kulondola Kosatha

Mbale ya granite pamwamba ndi chida cholondola, osati benchi logwirira ntchito. Ikavomerezedwa, kuthekera kwake kusunga kulondola kumadalira kwathunthu njira zogwiritsira ntchito ndi chilengedwe.

Kulamulira chilengedwe ndiye chinthu chachikulu chomwe chimakhudza kulondola kwa granite. Ngakhale granite ili ndi kuchuluka kochepa kwa kutentha (COE), kusiyana kwa kutentha pakati pa pamwamba ndi pansi (kusinthasintha kwa kutentha koyima) kungapangitse kuti slab yonse ikhale yozungulira kapena yopindika. Chifukwa chake, mbaleyo iyenera kusungidwa kutali ndi kuwala kwa dzuwa mwachindunji, mpweya wozizira, ndi magwero otentha kwambiri. Malo abwino amakhala ndi malo okhazikika a 68°F ± 1°F (20℃ ± 0.5℃).

Ponena za Njira Yogwiritsira Ntchito ndi Kuyeretsa, kugwiritsa ntchito kosalekeza komwe kumayambitsa kuwonongeka kosagwirizana. Pofuna kuthana ndi izi, tikukulangizani kuti muzizungulira slab nthawi ndi nthawi pamalo ake ndikugawa ntchito zoyezera pamwamba pake. Kuyeretsa nthawi zonse ndikofunikira. Fumbi ndi zinyalala zazing'ono zimakhala ngati zonyamulira, zomwe zimafulumizitsa kuwonongeka. Otsuka granite apadera okha, kapena isopropyl alcohol yoyera kwambiri, ndi omwe ayenera kugwiritsidwa ntchito. Musagwiritse ntchito sopo wapakhomo kapena zotsukira zochokera m'madzi zomwe zingasiye zotsalira zomata kapena, ngati madzi alowa, kuziziritsa kwakanthawi ndikusokoneza pamwamba. Pamene mbaleyo ili chete, iyenera kuphimbidwa ndi chivundikiro choyera, chofewa, chosawononga.

Pomaliza, ponena za Kukonzanso ndi Kukonzanso, ngakhale mosamala kwambiri, kuvala sikungapeweke. Kutengera ndi mtundu wogwiritsidwa ntchito (monga Giredi AA, A, kapena B) ndi ntchito, mbale ya granite pamwamba iyenera kukonzedwanso mwalamulo miyezi 6 mpaka 36 iliyonse. Katswiri wodziwa bwino ntchito amagwiritsa ntchito zida monga autocollimators kapena laser interferometers kuti azindikire kusiyana kwa pamwamba. Ngati mbaleyo ili kunja kwa giredi yake yololera, ZHHIMG imapereka ntchito zaukadaulo zokonzanso. Njirayi imaphatikizapo kubweretsanso lap yolondola pamalopo kapena ku malo athu kuti tibwezeretse mosamala kusalala koyambirira kovomerezeka, ndikukonzanso bwino nthawi ya chidacho.

Mwa kumvetsetsa njira yofunika kwambiri yopangira zinthu komanso kudzipereka ku ndondomeko yokonza zinthu mosamala, ogwiritsa ntchito amatha kuwonetsetsa kuti ma granite awo pamwamba amakhalabe maziko odalirika pa zosowa zawo zonse zolondola, zaka zambirimbiri.