Zoben niƙa na Alumina mai ƙarfe don aikace-aikacen lapping mai ƙarfi
St.Cera'szoben ƙarfe bisa aluminum nikayana haɗa wani Layer na yumbu mai tsafta (99.8% Al₂O₃) tare da madaurin ƙarfe mai inganci (yawanci aluminum ko bakin ƙarfe). Wannan ƙirar haɗin gwiwa tana ba da juriyar lalacewa ta musamman da rashin ƙarfin sinadarai na yumbu a saman niƙa, yayin da tushen ƙarfe ke ƙara ƙarfin injiniya, sauƙin hawa, da juriya ga karyewar karyewa. Layer na alumina yana ba da ƙarfin lanƙwasa na 361 MPa, taurin Vickers na 16 GPa, da kwanciyar hankali na zafi har zuwa 800°C. An keɓance tushen ƙarfe tare da ramukan hawa, fil ɗin gano wuri, ko halayen maganadisu don haɗawa cikin injunan lapping, injin niƙa na duniya, da kayan aikin CMP.
Bayani dalla-dalla(Layer na alumina wanda aka gina akan 99.8% Al₂O₃):
| Kadara | darajar |
| Kayan Aiki | 99.8% Alumina (Ivory) |
| Yawan yawa | 3.93 g/cm³ |
| Ƙarfin Lankwasawa | 361 MPa |
| Taurin Vickers | 16 GPA |
| Taurin Karyewa | 3–4 MPa·m¹/² |
| Faɗaɗawar Zafi (25-1000°C) | 7.2×10⁻⁶/℃ |
| Kammalawa a saman (fuskar niƙa) | Ra ≤0.4 μm (an lanƙwasa) |
| Faɗi | ≤5 μm sama da 100mm |
| Kayan Aiki na yau da kullun | Aluminum 6061, Bakin Karfe 304/316 |
| Hanyar Haɗawa | Mannewa na inji ko epoxy mai zafi |
| Kauri | 5–20 mm (an ƙayyade abokin ciniki) |
Lura: Ba a bayar da kaddarorin tushe na ƙarfe (yawa, tsarin Young, da sauransu) a cikin teburin kayan yumbu da aka bayar ba. Suna bin bayanan masana'antu na yau da kullun don aluminum/ƙarfe. Da fatan za a ƙayyade nau'in ƙarfe da buƙatun hawa.
Aikace-aikace:
● Zoben niƙa na'urar lapping ta duniya
● Zoben baya na CMP (gogewar sinadarai)
● Daidaitaccen lanƙwasa na hatimin yumbu ko ƙarfe
● Kayan gwajin lalacewa masu abrasive
Tsarin Masana'antu:
1. Zoben yumbu na alumina an yi shi da siminti daga foda 99.8% kuma an niƙa shi daidai har zuwa ID/OD na ƙarshe da kuma lanƙwasa.
2. Tushen ƙarfe an yi shi ne da injin CNC mai ramukan hawa, ramukan counterbore, ko maɓallan maɓalli.
3. Ana haɗa zoben yumbu da tushe na ƙarfe ta amfani da epoxy mai ƙarfi (zafin aiki ≤200°C) ko kuma a manne shi ta hanyar injiniya (yana ba da damar zafi mafi girma, har zuwa 500°C idan ana amfani da shim ɗin ƙarfe).
4. Lapping na ƙarshe na saman yumbu don cimma daidaito da kammala saman da ake buƙata.
5. Tsaftace Ultrasonic da kuma duba girman 100%.
Sarrafa Inganci:
● Binciken CMM na ID, OD, kauri, da matsayin ramuka
● Ma'aunin lanƙwasa ta amfani da na'urar auna laser
● Gwajin ƙarfin ɗaure (gwajin cirewa ko yankewa akan samfuran shaidu)
● Duba gani don tsagewa ko gurɓatattun abubuwa a cikin layin yumbu
Fa'idodi akan Zoben Yumbu ko na Karfe:
● Saman yumbu yana ɗaukar tsawon lokaci 5–10× fiye da ƙarfe mai tauri
● Tushen ƙarfe yana ba da sassauci - babu haɗarin karyewar karyewa yayin shigarwa
● Sauƙin hawa (ramukan da aka zana, fil ɗin dowel) kai tsaye akan injunan da ke akwai
● Ƙaramin farashi fiye da cikakken zoben yumbu don manyan diamita
● Ana iya tsara tushen ƙarfe don haɗe-haɗen manne mai maganadisu
Iyakoki (maganganun da suka shafi):
● Bayanan tushe na ƙarfe (faɗaɗa zafi, tauri) ba daga teburin yumbu da aka bayar ba - yana nufin halayen ƙarfe na yau da kullun.
● Matsakaicin zafin jiki mai ci gaba da aiki wanda aka iyakance shi da haɗin epoxy (≤200°C don epoxy na yau da kullun; mannewa na inji yana ba da damar har zuwa 500°C amma yana rage hatimin).
● Bai dace da yanayin sinadarai masu ƙarfi waɗanda ke kai hari ga tushen ƙarfe ba (misali, acid mai ƙarfi). Don cikakken juriya ga sinadarai, ƙayyade zoben yumbu.
Keɓancewa:
● Kayan ƙarfe: aluminum (mai sauƙi), bakin ƙarfe (mai jure lalata), ko Invar (ƙarancin faɗaɗa zafi)
● Hanyar haɗawa: epoxy (≤200°C), matse injina (≤500°C), ko kuma ƙarfe mai ƙarfi da aka yi da ƙarfe (≤800°C, farashi mafi girma)
● Sifofin hawa: ramukan da aka zare, ramukan fil na dowel, ramuka, ko goyon bayan maganadisu
● Kauri na layin yumbu: 3–20 mm
Tuntube mu don yin bitar ƙira da kuma zaɓar mafi kyawun haɗin ƙarfe-yumbu don aikace-aikacen niƙa.
