Kungani Abakhi Bemishini Eqondile Beqhubeka Nokushintsha Kusukela Ku-Cast Iron Kuya Ku-Granite

Noma ubani oke wachitha isikhathi ephansi lelebhu ye-metrology cishe uye waphawula iphethini efanayo: imishini emidala ihlala emibhedeni yensimbi eqoshiwe, emisha ibekwe etsheni elimnyama. Lokho kushintsha akwenzekanga ngoba i-granite ibukeka imangalisa kakhulu ngaphansi kwezibani. Kwenzeke ngenxa yenkinga yefiziksi engathandeki - ukwanda kokushisa.

Insimbi ephothiwe iyakhula futhi inciphe cishe ku-10-12 x 10⁻⁶ nge-°C. Lokho kuzwakala kuncane uze uyibeke eduze kwe-granite yemvelo, evame ukuhlala cishe ku-5-8 x 10⁻⁶ nge-°C, nakwamanye ama-granite amnyama aminyene aseduze no-4-5 x 10⁻⁶. Epulatifomu yokulinganisa yemitha eli-1, ukujikijela okungu-1°C ekushiseni okuzungezile kungaguqula ubuso bensimbi ephothiwe ngama-micron amaningana ngaphezu kwe-granite efanayo. Ukuze kube nokubekezelelana phansi kwe-workshop, akekho onendaba. Nge-CMM ehlola isigaba se-semiconductor wafer, noma i-laser interferometer ebambe ukuphindaphindwa kwe-sub-micron, lowo mehluko uwumdlalo webhola lonke.

Ukuncibilikisa amanzi kubaluleke kakhulu njengokwandisa

Ukuzinza kokushisa kuthola ukunakwa okukhulu, kodwa ukudambisa ukudlidliza kungashiwo ukuthi kubaluleke kakhulu kunoma yini eyenza ukunyakaza okunembe kakhulu - amakhanda okukhetha nokubeka, izigaba ze-XY, amapulatifomu aphethe umoya. I-Granite iyi-crystalline aggregate kunokuba ibe yinsimbi efanayo, ngakho-ke ukudlidliza komshini akusabalali kuyo ngendlela efanayo neyenza ngayo ngensimbi ephonswe. Imingcele yokusanhlamvu yangaphakathi iyahlakazeka futhi imunce amandla esikhundleni sokuwadlulisela ngokuhlanzekile. Empeleni lokhu kusho ukuthiisisekelo se-graniteIhlala ngokushesha ngemva kokuba i-axis yomshini iyeke ukuhamba, okuhumusha ngqo kube izikhathi zokuhlala ezimfushane kanye nomphumela ophezulu emigqeni yokuhlola neyemihlangano.

Kukhona futhi indaba yokuthi kwenzekani ngokuhamba kwesikhathi. Imibhede yensimbi ehlanganisiwe, ngisho neyodambiswa ukucindezeleka, ingakhukhuleka kancane eminyakeni edlule njengoba ukucindezeleka kwangaphakathi kwensimbi kusakazeka kabusha. I-granite, njengoba isivele yakhiwe ngaphansi kwengcindezi enkulu yemvelo ngokuhamba kwesikhathi, ayinayo leyo nkinga - "ayihlali" ngendlela insimbi ehlanganisiwe ehlanganisiwe.

Akuyona yonke i-granite elingana

Lena yingxenye ekhuba abathengi abaningi. I-granite ithengiswa ngobuningi futhi inombala ngendlela izingodo ezithengiswa ngayo ezinhlotsheni, kodwa ukusebenza ngokomzimba kuyahlukahluka kakhulu phakathi kwezindawo zokumba. Itshe elinobukhulu obuphansi, noma izinto ezinamathambo abonakalayo kanye nokusanhlamvu okungaguquguquki, ngeke lihlale lisicaba ngesikhathi esifanayo ne-granite emnyama ebanzi, enobukhulu obuncane ebangeni elingu-2,900-3,100 kg/m³. I-marble ngezinye izikhathi ithathelwa indawo abaphakeli abancane ngoba ishibhile futhi kulula ukuyishicilela, kodwa i-marble iyidwala le-carbonate elishintshashintshayo - elithambile, elinomoya omningi, futhi elizinzile kancane kune-granite yangempela. Kwi-countertop yokuhlobisa lokho akubalulekile. Ngepuleti elingaphezulu i-probe ye-CMM ezobhekisela kulo izikhathi eziyizinkulungwane ngosuku, kubaluleke kakhulu, futhi kungenye yezindlela ezivame kakhulu abathengi abathola ngazo imali encane ngaphandle kokuqaphela kuze kube yilapho kuvela ukugeleza kokulinganisa ezinyangeni kamuva.

Lapho lokhu kubonakala khona ngokoqobo

Ukushintshela ezisekelweni ze-granite kubonakala kakhulu emishinini yokuhlola ye-semiconductor, izinhlelo zokubhoboza ze-PCB kanye nezinhlelo ze-AOI, imishini yokulinganisa enama-coordinate amathathu, ukusethwa kwe-laser interferometry, kanye nokukhiqiza ibhethri kanye ne-precision optics, lapho ukubeka i-sub-micron sekuyinto eyisisekelo kunokuba kube yinto yokunethezeka. Njengoba ukubekezelelana kuzo zonke lezi zimboni kuqhubeka kuqina - kuqhutshwa ama-chip node amancane, izendlalelo zebhethri ezincane, kanye nezinhlelo ze-laser ezisheshayo - igebe phakathi kwensimbi ephonswe kahle "enhle ngokwanele" kanye ne-granite eqinile ngokwesilinganiso lizoba nethonya elikhulu, hhayi elincane.

Uma kukhona into eyodwa okufanele ifundwe onjiniyela abacabanga ngayo ngeplatifomu entsha yokunemba, yile: cela izibalo zangempela zobuningi kanye nokwanda kokushisa, hhayi nje "i-granite" njengento yokubeka ibhokisi lokuhlola. Umehluko phakathi kwe-granite eqine ekhethwe kahle kanye ne-substitute yezinga eliphansi kungaba umehluko phakathi komshini ogcina ukulinganiswa iminyaka eyishumi kanye nalowo odinga ukulinganiswa kabusha njalo ngekota.