The reason why reflow welding machine doesn't heat up in SMT production
Author:Whats the problem Time:2021-06-07 11:19 Browse(421)
In SMT production process, reflow soldering machine does not heat up, touch screen and OLED forum
- @! [. Q3 V4 [0 z+ J8 A. \         .& r/ ~, }0 U/ D' Z$ r- x6 u. H' H3 ]4 M4 u; G# m% ^. d. I# r3 Z' v4 P- b       The phenomenon that the reflow temperature does not go up and does not heat up generally occurs in the second-hand reflow soldering, which is more likely to occur in both the second-hand reflow soldering and the new reflow soldering, and the reflow soldering with good brand quality rarely occurs.

The reason why reflow welding machine doesn't heat up in SMT production

sometimes, the reflow soldering temperature does not go up in the process of soldering.
as a result, the product quality is unqualified, Sometimes the solder paste produced by reflow soldering will not dissolve tin.
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M6 {3a9l! u1 |" f% k8 O7 |6 B/ X8 k" r! ?1. First of all, we need to test the heating wire with a multimeter to check whether the heating wire is burnt out.
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x; v1 ?    l7 S0 N* X7 @ 2 L6 y'l (A8 B6 ^ 2, measure whether there is a problem with the relay in the temperature zone.
2 p * P / W. n'u (M1 I! C3 f0 R0 o6 P7 b/ ]& U8 f3. However, the heating wire and relay are not broken.
If three-phase power is lost and one phase power is lost, the relay may be broken.
. G8 E2 M & F (} * r#O / P (Q9 H: l # O7 G3 J4), if the temperature of hot air reflow soldering can not rise, the blower motor in that temperature zone may be broken (hot air stove).
the temperature of hot air reflow soldering can not riseAfter the blower motor is broken, the air heated by the heating wire can not be blown out, the thermal cycle process can not be completed, and the temperature can not go up, but after a long time, the adjacent temperature zone will overflow to it, and eventually it will rise, but it will slowly fluctuate up and down.
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U + U0 D & ^: | 4 L$ b6 ^$ C! I) v, j, W! t* t.
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