Mapulatifomu olondola a granite amadziwika chifukwa cha kukhazikika kwake komanso kulimba kwake, zomwe zimawapangitsa kukhala ofunikira pakugwiritsa ntchito molondola kwambiri m'magawo monga metrology ndi ukadaulo wamakina. Komabe, monga zida zina zambiri, granite imatha kupanga zomwe zimadziwika kuti "kupsinjika kwamkati" panthawi yopanga. Kupsinjika kwamkati kumatanthawuza mphamvu zomwe zili mkati mwazinthu zomwe zimayamba chifukwa cha kuzizira kosiyana, kugawa kosiyana, kapena kukhudzidwa kwakunja panthawi yopanga. Kupanikizika kumeneku kungayambitse kugwedezeka, kusokoneza, kapena ngakhale kulephera kwa nsanja ya granite pakapita nthawi ngati sikuyendetsedwa bwino.
Kukhalapo kwa kupsinjika kwamkati mu granite ndi nkhani yofala yomwe ingasokoneze kulondola komanso moyo wautali wa nsanja zolondola. Zopsyinjika izi zimachitika pamene granite ikukumana ndi kuzizira kosiyana panthawi yokhazikika kapena pamene pali kusiyana kwa kachulukidwe ndi kapangidwe kazinthu. Chotsatira chake ndi chakuti granite ikhoza kuwonetsa zopindika pang'ono zamkati, zomwe zingakhudze kusalala kwake, kukhazikika, komanso kukhulupirika kwake. M'mapulogalamu ovuta kwambiri, ngakhale zosokoneza zazing'ono zimatha kuyambitsa zolakwika zoyezera ndikusokoneza magwiridwe antchito a dongosolo lonse.
Kuchotsa kupsinjika kwamkati mkati mwakupanga ndikofunikira kuti muwonetsetse kulondola kwapamwamba komanso kudalirika kwa nsanja za granite. Imodzi mwa njira zothandiza kwambiri zomwe zimagwiritsidwa ntchito popanga mapulaneti olondola a granite ndi njira yotchedwa "stress relief" kapena "annealing." Kutentha kwa granite kumaphatikizapo kutenthetsa mosamala ku kutentha kwinakwake ndikulola kuti izizizire pang'onopang'ono m'malo olamulidwa. Njirayi imathandizira kutulutsa zovuta zamkati zomwe zitha kukhalapo panthawi yodulira, kupanga, ndi kuzizira kopanga. Kuzizira kwapang'onopang'ono kumapangitsa kuti zinthuzo zikhazikike, kuchepetsa chiopsezo cha deformation ndikuwongolera mphamvu zake zonse ndi zofanana.
Kuonjezera apo, kugwiritsa ntchito granite yapamwamba kwambiri, yofanana kwambiri kumathandiza kuchepetsa kupsinjika kwamkati kuyambira pachiyambi. Popeza zida zokhala ndi zosinthika zokhazikika komanso zolakwika zochepa zachilengedwe, opanga amatha kuchepetsa kupsinjika komwe kungakhudze magwiridwe antchito a nsanja yolondola.
Chinthu chinanso chofunikira pakuchepetsa kupsinjika ndikukonza mosamala ndikupukuta granite panthawi yopanga. Poonetsetsa kuti granite ikukonzedwa molondola komanso mosamala, mwayi wobweretsa zovuta zatsopano umachepetsedwa. Kuphatikiza apo, pamagawo omaliza opanga, nsanja nthawi zambiri zimayesedwa kuwongolera khalidwe lomwe limaphatikizapo kuyeza kusalala komanso kuyang'ana zizindikiro zilizonse zopotoka chifukwa cha kupsinjika kwamkati.
Pomaliza, ngakhale mapulaneti olondola a granite amatha kukulitsa kupsinjika kwamkati mkati mwakupanga, njira zogwira mtima monga kuphatikizira, kusankha mosamala zinthu, ndi makina olondola amatha kuchepetsa kapena kuthetsa zovuta izi. Pochita zimenezi, opanga amaonetsetsa kuti mapulanetiwo amakhalabe okhazikika, olondola, komanso odalirika kwa nthawi yaitali, omwe ndi ofunikira kwambiri pamafakitale apamwamba kwambiri. Pomvetsetsa ndi kuthana ndi kupsinjika kwamkati, nsanja zolondola za granite zitha kupitilizabe kukwaniritsa zofunikira zamafakitale omwe amadalira iwo kuti azitha kuyeza mwatsatanetsatane komanso magwiridwe antchito apamwamba.
Kuchotsa kupsinjika kwamkati sikungowonjezera magwiridwe antchito a nsanja komanso kuteteza moyo wautali komanso kulimba kwa zida zomwe zimadalira nsanja izi kuti zipeze zotsatira zolondola.
Nthawi yotumiza: Oct-20-2025