VisionXC_EN_CN - 第9页
9 With a linear prole, the component is not heated in a stepped manner during soldering, in fact it is heated along an identical linear temperature gradient. Linear proles can reduce cycle times and can help to r educe…
8
Each product has its own requirements in the
manufacturing process. Optimized heat transfer
over the entire soldering process is the basis for
best possible results.
The VisionXC offers flexibly controllable preheat-
ing zones within which your PCB is preheated and
prepared for the actual soldering process. The in-
dividual zones can be controlled independently of
each other via fan frequency, and assure best pos-
sible processes.
The VisionXC is equipped with special nozzle
sheets for optimized heat transfer by means of
uniform air flow over the PCBs. Flow speeds in
the upper and lower heat zones can be separate-
ly controlled, assuring that your PCB is heated up
through and through – completely and uniformly.
This prevents stressing of the material which can
disturb the soldering process. In addition, smaller
componants are not overheated and bigger ones
are still heated through enough.
To ensure that the heat flow in the system runs
stably and the outward heat radiation is as low
as possible, our VisionXC systems have optimum
insulation between the process chamber and the
exterior wall.
Using precise proling we can generate preci-
sion-reproducible temperature proles which are
tailored to component size, material or process
parameters.
From Zero to 240 °C
due to optimized heat transfer
均匀的热传导性能
尽管不同产品具有不同的制程需求，但是，最佳热传导
是所有产品实现出色焊接效果的基础。
VisionXC
系列回流焊系统配备了可灵活调节的预热区，用
于对PCB板进行预加热，使其达到实际焊接所需温度。此
外，系统的各个区域均可通过调节风机频率进行独立控
制，确保达到最佳效果。
VisionXC
配备了特殊的整流板，可确保气流均匀地通过
PCB板，实现最佳热传导。另外，您还可以分别调节顶部
和底部加热区的气体流速，使组件完整均匀地受热，防
止材料应力对焊接制程产生干扰，同时确保小型部件不
会过热，大型部件得到足够彻底的加热。
为使系统中气流稳定，最大限度降低向外的热辐射，
Vi-
sionXC
在炉膛和外壁之间采取了最佳隔热措施。
通过制定精确、可重现的温度曲线，我们的系统可完美
契合您的制程要求，匹配您的组件尺寸、材质和其他制
程参数。
9
With a linear prole, the component is not heated in a
stepped manner during soldering, in fact it is heated
along an identical linear temperature gradient. Linear
proles can reduce cycle times and can help to reduce
soldering errors such as tombstoning.
使用线型加热曲线时，组件不是以阶梯式加热，而是沿几乎
完全相同的温度斜率加热。线型温度曲线可以缩短循环时
间，消除元件立碑等焊接错误。
The component is brought to a temperature of at least
240 °C for soldering. Using a saddle prole the board
is gradually heated in line with pre-dened, individual
temperature ranges. Even components with differing
thermal masses are heated homogeneously and tem-
perature differences minimised.
组件被加热至240°C进行焊接。在马鞍型温度曲线下，PCB板
将逐渐加热到预定义温度范围。即使拥有不同热质量的组件
也能得到均匀加热，最大限度降低温差。
Saddle prole |
马鞍型温度曲线
Linear prole |
线型温度曲线
Convection |
对流
0s
0°
4
4
60s
40°
80°
120°
160°
200°
240°
120s 180s 240s 300s 360s 420s 480s
i
h1 h2 h3 h4 h5 h6 h7 ec4c3p1 p2 p3 c1 c2
217,0 °C
200,0 °C
0s
0°
C
4
t
4
60s
40°
80°
120°
160°
200°
240°
120s 180s 240s 300s 360s 420s 480s
i
h1 h2 h3 h4 h5 h6 h7 ec4c3p1 p2 p3 c1 c2
217,0 °C
200,0 °C
Separately adjustable heating zones
Reproducible temperature prole
Outstanding process stability with the smallest possible ΔT
Homogenous heat input over the entire PCB thanks to specially designed nozzles
Low maintenance effort
Homogenous heat transfer
C
t
The centrepiece of our VisionXC is the stainless steel process chamber with
its outstanding heat transfer owing to advanced hole nozzle geometry as
well as monitored adjustable overpressure in the heating module, guaran-
teeing homogeneous and gapless heat transfer to the circuit board. The
inert process atmosphere can be assured throughout the entire soldering
process and beyond because the closed system ensures that no external
air nds its way into the process chamber. The heat flow within the system
takes place by means of circulation, i.e. the process gas of the preheating,
peak and cooling zones is extracted, cleaned and reinserted into the pro-
cess at the sides.
VisionXC
系列回流焊系统的核心是不锈钢炉膛和先进孔型喷嘴带来的出色热传导性，
同时加热模块中受控的可调过压保护也可以确保电路板得到均匀、无间隙的热传
递。另外，高密封性炉膛使整个惰性气体焊接制程中无外部空气进入。热气流在系
统内循环，预热区、高温区和冷却区的制程气体被抽出、清洁，然后在两侧重新注
入炉膛。
单独可调的加热区
高重复精度的温度曲线
出色的制程稳定性，最小ΔT
采用特殊设计的喷嘴，对整个PCB板均匀加热
低维护需求
VisionXC| Heat transfer
10
A Clean Machine:
Effective Residue Management
As is the case with all industrial processes, substances are generated during
SMT production which have to be removed from the process cycle because
they contaminate the system. Our highly effective residue management
function puries the process gas safely and reliably, and keeps your system
clean and dry.
清洁型解决方案：
高效的残渣管理
和所有工业制程一样，SMT生产线同样也会产生可能污染系统的残渣，因此必须及时将
残渣从制程循环中排出。我们的高效残渣管理系统可以安全、可靠的净化制程气体，保
持系统洁净、干燥。
Agglomerator
technology