Product Introduction
MDVES-3545-3/6 Offline multi-layer vacuum soldering furnace mass production type
Model: MDVES-3545-3/6
Welding area 350 * 450MM * 3 layers
Welding area 350 * 450MM * 6 layers
Single and double warehouses can work independently
Ultimate vacuum degree 10Pa
Heating rate 40 ° C/min, cooling rate 60 ° C/min
Lateral temperature difference ± 3 ℃
Formic acid+nitrogen, reducing protective gas
Siemens PLC control system
Welding process plan for on-board IGBT power module
Process plan for multi-layer vacuum welding furnace - overall process time of 30min/furnace
SAC305 technological process：
Preheating section preheating, formic acid reduction
1. Vacuum to a set vacuum level below 1mbar
2. Fill with nitrogen gas and set the flow rate to 60-100L/min to 950mbar
3. Heat up to 200 ℃
4. Maintain the temperature for 30 seconds while vacuuming to 1 mbar
5. Fill with formic acid, set the flow rate to 30L/min, and charge to 850mbar
6. Maintain 150S in a formic acid environment at 200 ℃
Welding section vacuum extraction and bubble discharge
7. Heat up to welding temperature of 260 ℃
8. After reaching the target temperature, maintain for 30 seconds
9. Vacuum to 1mbar, maintain for 60s after reaching the vacuum level
10. Charge nitrogen to 1000mbar at atmospheric pressure
cooling
11. Set target temperature of 45 ℃ and cooling water temperature of 23 ℃
12. End after reaching the target temperature
Process Plan for Offline Vacuum Welding Furnace
Contact: Minder Hu
Phone: 0086-15813334038
Tel: 020-84789496
Email: md@minder-hightech.com
Add: 813,No.43,Xinshuikeng Section, Shixin Road, Dalong street,Panyu District,Guangzhou. Zip:511442
