Mu dziko lofunika kwambiri la metrology, chipika cha gage—chomwe nthawi zambiri chimatchedwa “Jo Block” chifukwa cha woyambitsa wake Carl Edvard Johansson—ndiye woweruza wamkulu wa chowonadi. Ma rectangles olondola awa amagwira ntchito ngati miyezo yayikulu yoyezera mzere m'masitolo ogulitsa makina ndi malo oyezera zinthu padziko lonse lapansi. Kwa zaka makumi ambiri, chitsulo cha zida chapamwamba chinali chinthu chosatsutsika chomwe chidasankhidwa pazida zofunika kwambirizi. Komabe, pamene kulolerana kwa kupanga kwakula ndipo kufunikira kwa moyo wautali m'malo ovuta ogulitsa kwakula, wolowa m'malo wabwino kwambiri watulukira: Ceramic yochokera ku Zirconia.
Ngakhale kuti ma block a zitsulo akadali ofunika kwambiri chifukwa cha mtengo wawo wotsika poyamba, kusintha kwa ceramic sikuti ndi chizolowezi chabe—ndi yankho ku zofooka zakuthupi za chitsulo. Mu nkhani yotsatirayi, tifufuza chifukwa chake ma block a ceramic gage akhala muyezo wagolide kwa opanga omwe amazindikira bwino khalidwe komanso momwe amathetsera mavuto omwe amakumana nawo nthawi zambiri a metrology yachikhalidwe.
Chitetezo ku Zinthu Zachilengedwe: Kutha kwa Kudzimbiritsa
Ubwino wodziwika bwino komanso wosavuta kusinthana ndi ceramic ndi chitetezo chake chonse ku dzimbiri. Chitsulo, ngakhale chitakhala chapamwamba bwanji, ndi chinthu chachitsulo. Pa malo opangira zinthu zambiri, chinyezi, utsi wozizira, komanso mafuta achilengedwe ochokera m'manja mwa katswiri zimatha kuyambitsa kukhuthala. Chala chimodzi chosiyidwa pa chipika chachitsulo usiku wonse chingayambitse kuphulika kosatha, kuwononga mawonekedwe ofanana ndi galasi omwe amafunikira kuti "apindike" - njira yomwe mabuloko awiri amalumikizidwa pamodzi mwamphamvu kuti amange.
Ma block a ceramic ndi osiyana kwambiri. Popeza ndi opanda mankhwala, sachita dzimbiri, sadetsedwa, kapena kuwononga. Izi zimachotsa kufunikira kwa ntchito zosasangalatsa komanso zosasangalatsa zosamalira zitsulo, monga kugwiritsa ntchito mafuta oteteza kapena mafuta oletsa dzimbiri musanasunge. Pa chipinda chowunikira chambiri, nthawi yosungidwa poyeretsa ndi kukonza ma block imatanthauzira mwachindunji kuwonjezeka kwa mphamvu. Chofunika kwambiri, chimapereka mtendere wamumtima: simuyenera kuda nkhawa kuti block yomwe yaiwalika kumbuyo kwa kabati yakhala chidutswa chopanda ntchito chachitsulo chodzimbiri.
Kukana Kwambiri Kuvala ndi Kukhala ndi Moyo Wautali
Pakupanga zinthu molondola, chipika choyezera chimakhala chabwino kukula kwake kokha. Nthawi iliyonse chipika chikakanikizidwa ku china kapena kugwiritsidwa ntchito kulinganiza micrometer, zinthu zochepa kwambiri zimawonongeka. Zipilara zachitsulo zimakhala zofewa poyerekeza ndi zinthu zomwe nthawi zambiri amaziyeza, zomwe zimapangitsa kuti kulondola kuchepe pang'onopang'ono pakapita zaka zambiri zikugwiritsidwa ntchito.
Mabuloko a ceramic, makamaka opangidwa ndi Zirconia yapamwamba kwambiri, ndi olimba kwambiri kuposa chitsulo. Ali ndi mphamvu yotha kutha ndipo nthawi zambiri amatchulidwa kuti ndi okulirapo kakhumi kuposa mabuloko achitsulo achikhalidwe. Kuuma kumeneku kumatsimikizira kuti malo osalala, ofanana a buloko amakhalabe mkati mwa kulekerera kwawo kwa nthawi yayitali. Kwa makampani omwe amachitidwa kafukufuku wa ISO nthawi zonse, izi zikutanthauza kuti ma calibration ochepa omwe sanakwaniritsidwe komanso kuti amasinthidwa pafupipafupi, zomwe zimapangitsa kuti ndalama zambiri zoyambira mu ceramic zikhale zosankha zotsika mtengo kwambiri kuposa moyo wonse wa chinthucho.
Vuto la "Burrs" ndi Kukhulupirika kwa Pamwamba
Chimodzi mwa zoopsa "zobisika" za ma block a gage achitsulo ndi burr. Pamene block yachitsulo yagwetsedwa mwangozi kapena kumenyedwa pamalo olimba, chitsulocho chimasuntha, nthawi zambiri chimapanga m'mphepete wokwezedwa kapena "crater." Ngati katswiri sazindikira burr iyi ndikuyesera kupotoza block ina, chitsulo chokwezedwacho chikhoza kukanda pamwamba pa block yachiwiri, zomwe zimapangitsa kuti kuwonongeka kuchitike nthawi yonse yokwera mtengo.
Sitimayo imachita zinthu mosiyana. Chifukwa cha kufooka kwake koma kulimba kwambiri, siimapangidwa ngati "bowa" kapena kupanga chipolopolo ikagunda. Ngati chipolopolo cha sitimayo chagwa, chimakhalabe cholimba kapena, nthawi zina, chidutswa chaching'ono chingang'ambike. Chofunika kwambiri, pamwamba pake pamakhalabe chosalala bwino. Sichidzatuluka mmwamba, zomwe zikutanthauza kuti sichidzawononga mabuloko ena mwangozi kapena kupereka chithunzi cholakwika panthawi yowunikira.
Kukhazikika ndi Kusamalira Kutentha
Kuyeza molondola ndi njira yovina ndi kutentha. Miyeso yambiri ya mafakitale imasinthidwa kukhala 20℃ (68℉), koma kutentha kuchokera m'dzanja la munthu kungapangitse kuti chipika cha gage chikule kwambiri. Zipangizo za ceramic zimakhala ndi kuchuluka kwa kutentha komwe nthawi zambiri kumakhala kotsika komanso kodziwikiratu m'malo enaake poyerekeza ndi chitsulo.
Ngakhale kuti kutentha kwa ceramic nthawi zambiri kumakhala kofanana ndi chitsulo kuti zitheke kufananiza mwachindunji ndi zigawo zachitsulo, mphamvu yochepa ya kutentha kwa chipangizocho ndi ubwino waukulu. Ceramic simatenga kutentha kuchokera m'manja mwachangu monga momwe chitsulo chimachitira. Izi zikutanthauza kuti katswiri amatha kugwira chipika cha ceramic kwa nthawi yayitali popanda kuyambitsa "kukula" kwachangu komwe kumachitika ndi chitsulo, zomwe zimapangitsa kuti kuyeza kwake kukhale kokhazikika komanso kobwerezabwereza panthawi yowunikira ndi manja.
Katundu Wosakhala ndi Maginito ndi Wosayendetsa Zinthu
Mu mafakitale amakono, makamaka m'mafakitale a semiconductor ndi zamagetsi, mphamvu ya maginito ndi vuto losalekeza. Ma block achitsulo amatha kukhala ndi maginito pakapita nthawi, makamaka ngati agwiritsidwa ntchito pafupi ndi maginito chucks kapena zida zamagetsi amphamvu. Block ya maginito imakopa fumbi lachitsulo ndi swarf, zomwe zimatha kugwira ntchito ngati zokwawa ndikuwononga malo opindika kapena kukanda gawo lomwe likuyesedwa.
Sitima ya Ceramic siigwiritsa ntchito maginito konse. Sidzakopa mafayilo achitsulo, zomwe zimapangitsa kuti kulumikizana pakati pa geji ndi gawolo kukhale koyera. Kuphatikiza apo, monga chotetezera magetsi, mabuloko a ceramic ndi abwino kwambiri kugwiritsa ntchito komwe kuyendetsa magetsi kungasokoneze zida zamagetsi kapena masensa ofunikira.
Kutsiliza: Chifukwa Chake Kusintha Kumamveka Bwino
Kusintha kuchoka pa zitsulo kupita ku zotchingira za ceramic kumayimira kusuntha kupita ku kulondola kwa "kusakonza konse". Mwa kuchotsa zoopsa za dzimbiri, mphamvu ya maginito, ndi kuphulika, ceramic imalola madipatimenti owongolera khalidwe kuyang'ana kwambiri pa zomwe zili zofunika kwambiri: kulondola. Ngakhale mtengo woyambira wa seti ya ceramic ndi wapamwamba, kuphatikiza kulimba kwambiri, kuchepetsa kuzungulira kwa calibration, ndi kuchotsa zokutira zoteteza zimapangitsa kuti zikhale njira yotsika mtengo kwambiri pa malo aliwonse olondola kwambiri.
Kaya mukuyesa zinthu zamlengalenga ndi ma sub-micron tolerances kapena mukungofuna muyezo wodalirika kwambiri wa makina anu, ma ceramic gage blocks amapereka maziko olimba omwe chitsulo sichingafanane nawo.
Nthawi yotumizira: Epulo-13-2026