磁性載具 |
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| Case Details |
FPC magnetic carrier
1., choose imported alloy material: good flatness, high temperature and stable state.
2., high temperature magnet (300 degrees), ensure reflow soldering process permanent magnet.
3. special steel sheet with magnetic treatment with high temperature and no deformation
Properties of FPC magnetic carrier
1., because the steel sheet is flatten on the surface of FPC, when FPC reflux, the solder flow will be reduced, and the quality of welding will be stable, and the bad quality will be reduced.
2. to guarantee the material selection, pallet life
3. operation is simple, convenient and high stability
4. heat insulation to prevent FPC deformation
Comparison of magnetic reflow soldering tray to silica gel plate
1. stability: magnetic reflow soldering tray is flat in the magnetic state of steel sheet to FPC, for physical process, magnetic properties can be increased or reduced according to requirements, and will not be changed because of temperature and time and other factors. Silica gel plate will be changed by temperature and time under chemical action, and its stability is not enough. Especially after a certain period of time, the viscosity decreases, and the viscosity decreases when it is not clean. The base plate deformation is caused by FPC reflow soldering. Influence the quality of welding.
2. life: the material used for magnetic reflow soldering tray, working principle for physical process, all high temperature resistant material, as long as it is not damaged and accident state can be used permanently. During the use of silica gel plate, chemical process is used, and silica gel will be used during the aging process, including no more than 1000 refluence of Japanese materials. The cost is very high.
3. quality: magnetic reflow soldering pallet is used for thermal insulation protection of FPC while working, and it will not destroy FPC when taking plate. Silica gel plate has certain viscosity to ensure the smoothness of FPC during the use process, but it will stick to PPC when taking out the plate, causing the difficulty of plate removal and FPC deformation.
Magnetic reflow pallets compared to ordinary pallets
1. quality: magnetic reflow soldering tray, because the steel sheet is flatten on the surface of FPC, when FPC reflux, the solder flow is reduced, ensuring welding quality stable and reducing bad. Ordinary pallets can only use high temperature adhesive paper around them. During reflow soldering process, it is easy to cause intermediate deformation of FPC and overflow of tin water, resulting in poor welding. Influence quality. At the same time, the magnetic reflow can reduce the pallet board to board high temperature adhesive tape PPC caused difficulties and FPC deformation
2. cost: magnetic reflow soldering tray, easy to use, reduce the front and rear tearing staff, and reduce the high temperature adhesive paper.
The amount of the amount. An investment is large at a time. For the production of products, the cost has advantages.
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