CLM920_AC3 Module Hardware Usage Guide
Shanghai Yuge Information Technology co., LTD
- 54 -
The recommended furnace temperature curve is shown below:
Figure 7-1 Reflow soldering temperature graph
Table 7-1 Reflow process parameter table
Warm zone
time
key parameter
Preheating zone(40
℃~
165
℃
)
Heating rate
:
1
℃
/s
~
3
℃
/s
Temperature zone(160
℃~
210
℃
)
(t1
~
t2)
:
70s
~
120s
Recirculation zone(>217
℃
)
(t3
~
t4)
:
40s
~
60s
Peak temperature
:
235
℃~
245
℃
Cooling zone
Cooling rate
:
2
℃
/s
≤
Slope
≤
5
℃
/s