Introduction of reflow temperature parameters in eight temperature zone
Author:Jin Jianhua Time:2021-06-07 12:24 Browse(47)
Eight temperature zone reflow soldering temperature parameter introduction, touch screen and OLED forum
No matter how many temperature zones reflow soldering or what brand reflow soldering must have these parameter values: control system, heating / cooling zone, length of heating zone, temperature control range, temperature control accuracy, three-point temperature difference, cooling mode, PCB size, PCB transmission height, transmission mode, transmission direction, transmission speed, chain rail width adjustment range, transmission belt width, power-off protection, power supply Normal operation power / total power, fuselage size (L * w * h), net weight.
with the above process parameters.
the reflow operation technician can set the standard reflow temperature and temperature curve according to the characteristics of solder paste and the above parameters, and the high-quality products can be welded according to the set temperature curve.

Introduction of reflow temperature parameters in eight temperature zone

with the above process parameters: ~8 K" y& k7 ? 6 Y4 ^8 b; V) }; v* c7 G2 a    W3 E.
Q "W standard eight temperature zone reflow soldering temperature parameter 4 ^ + R. V; N* Z' q: A- lHeating / cooling zone: there are 16 heating zones and 2 cooling zones in the upper eight and the lower eight?! i% [1 `   [ 4 b# ^Heating zone length: 2950mm. A! s3 [9 W8 N) \" RTemperature control range: room temperature ~ 350 ℃: ^!} F% L3 UTemperature control accuracy: ± 1~2 ℃) y& n7 x- y) R/ a+ TThree point temperature difference: ± 2℃'O6 M7 L "@ 4] * E6 G & G + I0 s cooling mode: forced air cooling (axial flow air cooling system) * w-u; y, O$ b' S5 p& ~, s- m1 _PCB size: (W) 50 ~ (W) 400mm $I% D2 y (R5 | 3 y & K! xPCB transmission height: 900 ± 20mm3 T7 Z / Q & A (B9 | 2 S4 I transmission mode: chain rail + mesh belt transmission. Q '` 7 h    R* @( U0 E; u: `Transmission direction: left → right 3 A0_ 7 `$ Z5 @/ }: mTransmission speed: 0 ~ 2000mm / min    Variable frequency adjustable* k/ m2 S$ a    R chain rail width adjustment range: 50 ~ 500mm& y1 w    Q9 s # A:]% N6 a "G5 @ * S9 g transmission network belt width: 460mm5 Y. m7 G3 t2 W,? 3 T6 s power off protection: UPS 1} / S9 D, F6 ^ 9?Power supply: a3-248; 380V 50HZ5 R+ m( ~7 R# s9 GNormal operation power / total power: 4 / 73kw) g% o+ `    T1 ', V & y. fuselage size (L * w * h): 5500mm (L) * 1500mm (W) * 1550mm (H)) S5 P6 P7 Z, D # F2 GNet weight: 1870kg' s* U8 z    a. u& I+ Q/ `   c) M, Z / G9] - M% T 2 y, the main process parameters that affect the quality of reflow soldering are: 1; 2. The temperature of reflow holding zone; 3. Reflow zone temperature of reflow soldering; 5. Other reflow parameters mainly affect the efficiency of reflow welder.
5 N% ~ 1 y.
^% e + s (~5 V& d+ D& L6 r0 V: p& K0 p' T.
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