Kwa PCB BGA SMT Adhesive Seal 200g Tube Epoxy Resin Red Glue Yopereka Stencil Printing Solder
Guluu wofiira wa SMT ndi mtundu wa polyene epoxy resin organic pawiri.Poyerekeza ndi phala la solder, guluu wofiira amachiritsa atatha kutentha.Malo ake ochiritsira ndi 150 ℃, zitatha izi, nthawi yomweyo amasintha kuchoka pa phala kukhala lolimba.Kuthamanga kwake kodabwitsa, kukana kutentha kwambiri, komanso mphamvu zamagetsi zamagetsi zimapangitsa izi kukhala gawo lofunikira pakugulitsa.Ndi yabwino pokonza mndandanda wa SMT panthawi yowotchera mafunde.
Mafotokozedwe Akatundu
Guluu wofiira wa SMT ndi mtundu wa polyene epoxy resin organic pawiri.Poyerekeza ndi phala la solder, guluu wofiira amachiritsa atatha kutentha.Malo ake ochiritsira ndi 150 ℃, zitatha izi, nthawi yomweyo amasintha kuchoka pa phala kukhala lolimba.Kuthamanga kwake kodabwitsa, kukana kutentha kwambiri, komanso mphamvu zamagetsi zamagetsi zimapangitsa izi kukhala gawo lofunikira pakugulitsa.Ndi yabwino pokonza mndandanda wa SMT panthawi yowotchera mafunde.
| 1. Katundu pamaso kuchiritsa | |
| Kanthu | Parameter |
| Mtundu | Chofiira |
| Kukoka kwapadera (25 ℃, g/cm^3) | 1.3 |
| Kukhuthala (25 ℃, 10rpm, pa/s) | 70 |
| Thixotropic Index | 105 ± 10 |
| Flash Point (TCC) | > 95 ℃ |
| Tinthu Kukula | 15m mu |
| Copper Mirror Test | Palibe Corrosion |
| 2. Katundu pambuyo kuchiritsa | |
| Kanthu | Parameter |
| Mtundu | Chofiira |
| Kachulukidwe (25 ℃) | 1.3±0.1 g/cm^3 |
|
Coefficient of Thermal Expansion | 25-70 ℃; 51 |
| 90-150 ℃; 160 | |
| Kukana kwa Voliyumu (25 ℃) | 2.0*10^16 Ω/cm |
| Kutentha Kwapadera | 0.3 KJ/Kg.K |
| Kutentha kwa Glass Transition | 105 ℃ |
| Dielectric Constant | 3.8 (100KHZ) |
| Dielectric Tangent | 0.014 (100KHZ) |
| Kumeta ubweya Mphamvu | 24 n/m |
| Kutulutsa Mphamvu | 61 n |
| Mphamvu ya Torque | 52 n.m |
Kuchiritsa Chikhalidwe Mayeso
Mzere wokhotakhota wosungidwa ukuwonetsedwa pansipa
Kuchiritsa koyenera kumatenthetsa pa 150 ° C kwa masekondi 90-120.Ubale pakati pa liwiro lakuchiritsa ndi mphamvu yomaliza yolumikizana ndi kutentha kwa machiritso ndi nthawi zikuwonetsedwa pansipa
Pakupanga kwenikweni, nthawi yonse yotentha imakhala yayitali kuposa chithunzicho, chifukwa pali nthawi yoyambira.
