A matsayin babban kayan aikin aunawa na ƙasa (metric technology) a fannin kera daidaiton ma'auni, Dandalin Granite CMM (wanda kuma aka sani da teburin auna ma'aunin marmara, teburin auna ma'aunin granite daidai) an san shi sosai saboda ingantaccen daidaito da daidaitonsa. Lura: A wasu lokutan ana rarraba shi ba daidai ba tare da dandamalin CMM na ƙarfe da aka yi da siminti a kasuwa, amma haɗin ma'adinai na halitta na granite yana ba shi fa'idodi marasa maye gurbinsu a cikin yanayin auna daidaito mai girma - babban bambanci ga ƙwararru waɗanda ke neman ingantattun ma'aunin ma'aunin ƙasa.
1. Ma'anar Asali & Aikace-aikacen Farko
Dandalin granite CMM kayan aiki ne na auna daidai gwargwado wanda aka ƙera daga babban dutse na halitta, wanda aka ƙera ta hanyar injinan CNC da kuma tsarin kammalawa da hannu. Babban aikace-aikacensa sun haɗa da:
- Yin aiki a matsayin tushen aikin aiki don ayyukan injin aunawa mai daidaitawa (CMM), wanda ke ba da damar yin cikakken bincike na girman sassan injin.
- Taimakawa gwajin daidaito na kayan aikin injina, tabbatar da daidaiton lissafi (misali, lanƙwasa, daidaitawa) na teburin aikin kayan aikin injina.
- Gudanar da daidaiton girma da kimanta karkacewar tsari na sassa masu inganci (misali, sassan sararin samaniya, sassan daidaiton motoci).
- Yana da alamomi guda uku na asali a saman aikinsa, wanda ke sauƙaƙa saurin daidaitawa da kuma sanya na'urorin bincike na CMM don ingantaccen aikin aunawa.
2. Tsarin Ma'adinai & Fa'idodin Ayyukan Halitta
2.1 Babban Haɗin Ma'adinai
Manyan dandamali na granite masu inganci sun ƙunshi:
- Pyroxene (35-45%): Yana ƙara yawan tsarin jiki da juriya ga lalacewa.
- Plagioclase feldspar (25-35%): Yana tabbatar da daidaiton rubutu da ƙarancin faɗaɗa zafi.
- Ma'adanai masu kama da na biotite (olivine, biotite, magnetite): Suna ba da gudummawa ga hasken baƙar fata na kayan da juriya ga maganadisu.
Bayan ɗaruruwan shekaru na tsufa na halitta, matsin lamba na ciki na dutse ya fito gaba ɗaya, wanda ke haifar da tsarin lu'ulu'u mai ƙarfi wanda ke kawar da nakasar bayan sarrafawa - wata fa'ida ta musamman fiye da kayan da ɗan adam ya yi.
2.2 Fa'idodin Fasaha
Idan aka kwatanta da dandamalin ƙarfe ko kayan haɗin gwiwa, dandamalin CMM na granite suna ba da aikin da ba a taɓa yin irinsa ba:
- Kwanciyar Hankali: Babu damuwa ta ciki daga tsufa ta halitta yana tabbatar da babu nakasu a cikin dogon lokaci ko nauyi (har zuwa 500kg/m² ga samfuran yau da kullun).
- Babban Tauri da Juriya ga Lalacewa: Taurin Mohs na 6-7 (ya wuce ƙarfe 4-5), yana tabbatar da ƙarancin lalacewa a saman koda bayan zagayowar aunawa sama da 10,000.
- Juriyar Tsatsa da Magnetic: Ba ya jure wa acid, alkalis, da sinadaran da ke narkewa a masana'antu; halayen da ba na maganadisu ba suna hana tsangwama ga kayan aikin auna maganadisu daidai.
- Ƙarancin Faɗaɗawar Zafi: Daidaitaccen faɗaɗawa na 5.5×10⁻⁶/℃ (1/3 na ƙarfen siminti), yana rage karkacewar girma da canjin yanayin zafi ke haifarwa.
- Ƙarancin Kulawa: Sama mai santsi da kauri (Ra ≤ 0.4μm) ba ya buƙatar hana tsatsa ko shafa man shafawa akai-akai; gogewa mai sauƙi da zane mara lint yana kiyaye tsabta.
3. Ma'aunin Daidaito & Bayanin Juriya
Juriyar lanƙwasa ta dandamalin CMM na granite tana bin ƙa'idar GB/T 4987-2019 (daidai da ISO 8512-1) kuma an rarraba ta zuwa matakai huɗu masu daidaito. Tsarin haƙurin lanƙwasa kamar haka (D = tsawon diagonal na saman aiki, a cikin mm; zafin jiki na aunawa: 21±2℃):
- Aji 000 (Matsakaicin Daidaito): Juriya = 1×(1 + D/1000) μm (ya dace da CMMs masu matuƙar daidaito a yanayin dakin gwaje-gwaje).
- Aji 00 (Babban Daidaito): Juriya = 2×(1 + D/1000) μm (ya dace da CMMs na masana'antu a masana'antar kera motoci/samar da sararin samaniya).
- Aji 0 (Daidaitacce): Juriya = 4×(1 + D/1000) μm (ana amfani da shi don gwajin kayan aikin injin gabaɗaya da duba sassan).
- Aji na 1 (Midadi): Juriya = 8×(1 + D/1000) μm (wanda ya dace da sarrafa ingancin injina mai tsauri).
Duk wani dandamalin granite mara misaltuwa yana fuskantar tantancewar yanayin ƙasa ta wasu kamfanoni, tare da bayar da rahoton daidaito da za a iya bi don kowane sashe - wanda ke tabbatar da bin ƙa'idodin inganci na ƙasashen duniya.
4. Bukatun da Iyakoki na Fuskar Aiki
4.1 Ka'idojin Inganci don Fuskokin Aiki
Domin tabbatar da daidaiton ma'auni, dole ne saman aiki na dandamalin CMM na granite ya kasance babu lahani da ke shafar aiki, gami da:
- Ramin yashi, ramukan raguwa, tsagewa, ko abubuwan da suka haɗa (wanda ke haifar da rarraba ƙarfi mara daidaito).
- Ƙuraje, gogewa, ko tabon tsatsa (wanda ke ɓata wuraren aunawa).
- Porosity ko rashin daidaiton rubutu (wanda ke haifar da lalacewa mara daidaito).
Fuskokin da ba sa aiki (misali, gefuna na gefe) suna ba da damar yin gyaran ƙwararru na ƙananan raunuka ko lahani na chamfer, muddin ba su shafi ingancin tsarin ba.
4.2 Iyakokin Fasaha & Ragewa
Duk da cewa dandamalin granite sun yi fice a daidaito, suna da takamaiman ƙuntatawa da ƙwararru ya kamata su lura:
- Jin Daɗin Tasiri: Ba zai iya jure wa manyan tasirin ba (misali, faɗuwar sassan ƙarfe); tasirin na iya haifar da ƙananan ramuka (kodayake ba ƙonewa ba ne, wanda ke guje wa shafar daidaiton aunawa).
- Jin Daɗin Danshi: Yawan shan ruwa shine ~1%; tsawon lokacin da aka shafe ana shan ruwa da zafi mai yawa (>60%) na iya haifar da ƙananan canje-canje a girma. Ragewa: A shafa wani shafi na musamman da aka yi da silicone mai hana ruwa shiga (wanda aka bayar kyauta tare da oda marasa misaltuwa).
5. Me yasa za a zabi dandamalin Granite CMM marasa misaltuwa?
- Tushen Kayan Aiki: Muna amfani da dutse mai launin "Jinan Black" kawai (wanda yake da ƙarancin ƙazanta na <0.1%), yana tabbatar da daidaiton rubutu da aiki mai kyau.
- Daidaita Injin Niƙa: Haɗaɗɗen niƙa na CNC (juriya ±0.5μm) da goge hannu (Ra ≤ 0.2μm) sun wuce ƙa'idodin masana'antu.
- Keɓancewa: Muna bayar da girma dabam dabam (daga 300 × 300mm zuwa 3000 × 2000mm) da ƙira na musamman (misali, ramukan T-slot, ramukan zare) don dacewa da samfurin CMM ɗinku.
- Tallafin Bayan Siyarwa: Garanti na shekaru 2, sake daidaita daidaiton shekara-shekara kyauta, da kuma kula da wurin a duk duniya (wanda ya shafi Turai, Arewacin Amurka, da Kudu maso Gabashin Asiya).
Lokacin Saƙo: Agusta-21-2025