Zida Zothandizira Zopanga za SMT za Migwirizano Ena Wamba

Popanga mapangidwe a SMT, nthawi zambiri zimakhala zofunikira kugwiritsa ntchito zomatira za SMD, phala la solder, stencil ndi zipangizo zina zothandizira, izi zothandizira pakupanga msonkhano wonse wa SMT, khalidwe la mankhwala, kupanga bwino kumagwira ntchito yofunika kwambiri.

1. Nthawi yosungira (Shelf Life)

Pansi pazikhalidwe zomwe zafotokozedwa, zinthu kapena katunduyo amatha kukwaniritsa zofunikira zaukadaulo ndikusunga magwiridwe antchito oyenera a nthawi yosungira.

2. Nthawi yoyika (Nthawi Yogwira Ntchito)

Chip zomatira, phala la solder lomwe likugwiritsidwa ntchito musanakumane ndi malo omwe mwatchulidwa limatha kukhalabe ndi mankhwala omwe atchulidwa komanso mawonekedwe a nthawi yayitali kwambiri.

3. Kukhuthala (Viscosity)

Chip zomatira, phala la solder mu kudontha kwachilengedwe kwa zomatira za kuchedwa kwa dontho.

4 Thixotropy (Thixotropy Ratio)

Chip zomatira ndi solder phala ali ndi makhalidwe a madzimadzi pamene extruded pansi pa mavuto, ndipo mwamsanga kukhala pulasitiki olimba pambuyo extrusion kapena kusiya ntchito kuthamanga.Khalidweli limatchedwa thixotropy.

5. Kutsika (kutsika)

Pambuyo kusindikizidwa kwachosindikizira cha stencilchifukwa cha mphamvu yokoka ndi kukangana pamwamba ndi kutentha kukwera kapena kuyimitsidwa nthawi ndi yaitali kwambiri ndi zifukwa zina chifukwa cha kuchepetsa kutalika, m'dera pansi kupitirira malire odziwika a chodabwitsa kugwa.

6. Kufalikira

Mtunda umene zomatirazo zimafalikira kutentha kwa firiji pambuyo popereka.

7. Kumamatira (Tack)

Kukula kwa kumamatira kwa solder phala ku zigawo zikuluzikulu ndi kusintha kwake kumamatira ndi kusintha kwa nthawi yosungirako pambuyo pa kusindikiza kwa solder phala.

8. Kunyowetsa (Kunyowetsa)

The chosungunuka solder mu mkuwa pamwamba kupanga yunifolomu, yosalala ndi wosasweka boma la solder woonda wosanjikiza.

9. No-clean Solder Paste (No-clean Solder Paste)

Phala la solder lomwe lili ndi zotsalira zopanda vuto zotsalira pambuyo pothira popanda kuyeretsa PCB.

10. Low Temperature Solder Phaste (Low Temperature Paste)

Phala la solder ndi kutentha kosungunuka kutsika kuposa 163 ℃.