1. Hordhac
Tallaabo muhiim ah oo ku jirta habka SMT, alxanka dib-u-warshadaynta ayaa door muhiim ah ka ciyaara go'aaminta isku halaynta iyo cimriga alaabada elektaroonigga ah. Sida laga soo xigtay IPC-J-STD-020, wax soo saarka elektaroonigga casriga ah wuxuu u baahan yahay saxnaanta xakamaynta heerkulka oo ah ±5°C. Qaybaha sida qalabka elektaroonigga baabuurta (AEC-Q100) iyo hawada sare (MIL-STD-883), tayada alxanka ayaa si toos ah u saameysa badbaadada iyo waxqabadka badeecada.
2. Mabaadi'da Habraaca iyo Qodobbada Xakamaynta Muhiimka ah
Alxanka dib-u-warshadaynta wuxuu sameeyaa isku-xidhyo alxan oo deggan iyada oo loo marayo astaamaha kulaylka ee la xakameeyey. Xuduudaha ugu muhiimsan waxaa ka mid ah:
- ·Heerka Kuleylka: 1–3°C/s (si looga fogaado shoogga kulaylka)
- ·Heerkulka ugu sarreeya: 20–40°C oo ka sarreysa heerka dhalaalka alxanka (caadiyan 235–245°C SnAgCu)
- ·Waqtiga Ka Sareeya Liquidus (TAL): 30–90 ilbiriqsi
- ·Heerka Qaboojinta: 1–4°C/s (si loo hagaajiyo qaab-dhismeedka isku-dhafka alxanka)
3. Hirgelinta Farsamo ee Muhiimka ah
3.1 Hagaajinta Astaanta Heerkulka
- ·Wuxuu adeegsadaa qalabka KIC ee ku shaqeeya heerkulka oo leh kormeer waqtiga-dhabta ah oo 6-12 kanaal ah.
- ·Hubinta Dusha sare ee looxa ΔT iyo QIIMAHA .
- ·Daraasadaha SMTA waxay muujinayaan in astaamaha kuleylka ee la hagaajiyay ay yareyn karaan cilladaha alxanka 60% (Dugsiga Sare, 2021).
3.2 Xakamaynta Jawiga
- ·Ilaalinta Nitrogen-ka: THE2 Fiirsashada Warbixinta Cilmi-baarista Heller).
- ·Gudbinta Hawada Kulul: Hawada hawada ee la xakameeyey (0.5–1.5 m/s) waxay hubineysaa wareejinta kulaylka oo isku mid ah.
3.3 Cabbirrada Waxqabadka Qalabka
| Summada/Qaabka | Aagagga Heerkulka | Saxnaanta Xakamaynta Heerkulka | Isticmaalka Nitrogen-ka | Astaamaha |
|---|---|---|---|---|
| Heller 1910 | 12 | ±1°C | 15m³/saacaddii | Hawo kulul oo laba-wareeg ah |
| Rehm V9 | 10 | ±1.5°C | 12m³/saacaddii | Dib-u-socodka faakuumka |
| Jutuo JS-800 | 8 | ±2°C | 18m³/saacaddii | Qaboojinta caqliga leh |
4. Nidaamka Hubinta Tayada
4.1 La socodka Hawsha
- ·Falanqaynta SPC-ga waqtiga-dhabta ah: CRP ≥ 1.33
- ·Dib-u-xaqiijinta astaanta kulaylka: Afartii saacadoodba mar
- ·Baarista raajada: Hubinta tayada isku-darka alxanka halkii IPC-A-610 heerarka
4.2 Xaqiijinta Kalsoonida
- ·Baaskiil Heerkulka: -40°C ilaa 125°C, 1000 wareeg
- ·Gariirka Farsamada: Tijaabada 3-dhidibka, 20–2000Hz
- ·Metallografi: Dhumucda IMC (isku-dhafka birta-dhexdhexaadka ah) 2–5μm
5. Kiisaska Codsiga Warshadaha
- ·Elektarooniga Gawaarida: Waxay buuxisaa heerarka cadaadiska kulaylka ee 3000-wareeg ah.
- ·Qalabka Caafimaadka: Shahaadada ISO 13485 si loo helo raadraac iyo isku hallayn habka.
- ·Isgaarsiinta 5G: Hubinta daacadnimada calaamadda iyadoo la adeegsanayo joomatari isku-darka alxanka ee la hagaajiyay ee modules-ka mmWave.
6. Soo Koobid: Aasaaska Isku-xidhka Dib-u-soo-celinta ee Kalsoonida Sare leh
- ·Xakamaynta astaanta heerkulka saxda ah
- ·Waxqabadka qalabka oo deggan oo hufan
- ·Kormeerka tayada habka oo dhammaystiran iyo xaqiijinta isku halaynta
Iyada oo la adeegsanayo xakamaynta habka nidaamsan, soosaarayaashu waxay gaari karaan wax soo saar dib-u-warshadayn ah ≥99.9%, iyagoo gaaraya heerarka tayada iyo joogtaynta ugu sarreeya warshadaha.
Tixraacyada
- 1.IPC-J-STD-020E, 2020
- 2. Warqad Cad oo Xalalka Habka Heller ah, 2022
- 3. Dacwadaha Caalamiga ah ee SMTA, 2021
- 4.MIL-STD-883H, 2019
- 5.AEC-Q100 Rev-H, 2014
