1. Gabatarwa
A matsayin muhimmin mataki a cikin tsarin SMT, sake haɗa solder yana taka muhimmiyar rawa wajen tantance inganci da tsawon rayuwar kayayyakin lantarki. A cewar IPC-J-STD-020, masana'antar lantarki ta zamani tana buƙatar daidaiton sarrafa zafin jiki na ±5°C. A fannoni kamar na'urorin lantarki na motoci (AEC-Q100) da kuma jiragen sama (MIL-STD-883), ingancin haɗakar da aka yi da ƙarfe yana shafar aminci da aikin samfur kai tsaye.
2. Ka'idojin Tsarin Aiki da Mahimman ...'auni
Sake haɗa solder yana samar da haɗin solder mai ƙarfi ta hanyar bayanan zafi mai sarrafawa. Mahimman sigogi sun haɗa da:
- ·Yawan Dumamawa: 1–3°C/s (don guje wa girgizar zafi)
- ·Zafin jiki mafi girma: 20–40°C sama da wurin narkewar solder (yawanci 235–245°C ga SnAgCu)
- ·Lokacin da Ya Sama da Liquidus (TAL): Daƙiƙa 30–90
- ·Saurin Sanyaya: 1–4°C/s (don inganta tsarin haɗin haɗin da aka solder)
3. Manyan Ayyukan Fasaha
3.1 Inganta Bayanin Zafin Jiki
- ·Yana amfani da na'urar tantance yanayin zafi ta KIC tare da sa ido a ainihin lokaci ta tashoshi 6-12.
- ·Yana Tabbatarwa saman allo ΔT kuma FARASHI .
- ·Nazarin SMTA ya nuna cewa ingantattun bayanan zafi na iya rage lahani na solder da kashi 60% (Makarantar Sakandare, 2021).
3.2 Kula da Yanayi
- ·Kariyar Nitrogen: ABINCI2 maida hankali ƙasa da 1000ppm yana ƙara yawan danshi da sama da 15% (Rahoton Bincike na Heller).
- ·Iskar Zafi Mai Sauƙi: Iska mai sarrafawa (0.5–1.5 m/s) tana tabbatar da canja wurin zafi iri ɗaya.
3.3 Ma'aunin Aikin Kayan Aiki
| Alamar/Samfuri | Yankunan Zamani | Daidaiton Kula da Dan Lokaci | Amfani da Nitrogen | Siffofi |
|---|---|---|---|---|
| Heller 1910 | 12 | ±1°C | 15m³/h | Iska mai zafi mai zagaye biyu |
| Rehm V9 | 10 | ±1.5°C | 12m³/h | Sake kwararar injin injin |
| Jutuo JS-800 | 8 | ±2°C | 18m³/h | Sanyaya mai hankali |
4. Tsarin Tabbatar da Inganci
4.1 Kulawa da Tsarin Aiki
- ·Binciken SPC na ainihin lokaci: CRP ≥ 1.33
- ·Sake tabbatar da bayanin martaba na thermal: Kowace awa 4
- ·Binciken X-ray: Yana tabbatar da ingancin haɗin haɗin solder a kowane lokaci IPC-A-610 ƙa'idodi
4.2 Tabbatar da Inganci
- ·Zafin Zafi: -40°C zuwa 125°C, zagaye 1000
- ·Girgizar Inji: Gwajin 20–2000Hz, 3-axis
- ·Tsarin ƙarfe: Kauri na IMC (mahaɗin ƙarfe) 2–5μm
5. Lambobin Aikace-aikacen Masana'antu
- ·Na'urorin Lantarki na Motoci: Ya cika ƙa'idodin matsin lamba na zafi mai zagaye 3000.
- ·Na'urorin Lafiya: An ba da takardar shaidar ISO 13485 don bin diddigin tsari da aminci.
- ·Sadarwa ta 5G: Yana tabbatar da amincin sigina tare da ingantaccen tsarin haɗin solder don na'urorin mmWave.
6. Takaitawa: Tushen Ingantaccen Ingantaccen Haɗin ...
- ·Daidaitaccen tsarin sarrafa yanayin zafi
- ·Tsarin aiki mai ƙarfi da inganci
- ·Cikakken sa ido kan inganci da kuma tabbatar da inganci
Tare da tsarin sarrafa tsari, masana'antun za su iya cimma yawan sake samar da solder ≥99.9%, wanda zai kai ga matakin inganci da daidaito a masana'antu.
Nassoshi
- 1.IPC-J-STD-020E, 2020
- 2. Takardar Fari ta Maganin Tsarin Heller, 2022
- 3. Takardun Ƙasa da Ƙasa na SMTA, 2021
- 4.MIL-STD-883H, 2019
- 5. AEC-Q100 Rev-H, 2014
