Condenso_Series_EN - 第7页

7 Galden ® storage container Filter granules Low medium consumption Resource-conserving and efcient After soldering, the assembly is passed onto the cooling process. Process gas is extracted and cleaned at the same time…

With all Condenso series systems, the soldering process

takes place in a hermetically sealed process chamber made

of aluminium or a mix of stainless steel and aluminium. The

process chamber is tted with high-quality electric panel he-

aters that ensure optimum process conditions. The assem-

bly is heated up to soldering temperature by injecting and

vaporising Galden

. Steam allows for optimum heat transfer

to the soldering material. The heating systems’ target

temperature value remains constant. Therefore, excellent,

reproducible soldering results are ensured. The Galden

fully extracted after the soldering process, and air is blown

in via a nozzle system to gently bring the assemblies to

lower temperatures before the actual cooling process. The

systems can be optionally tted with a viewing window or

camera so that the soldering process can be observed and

analysed. Soldering defects can be detected and eliminated

in a timely fashion as a result.

Hermetically sealed Process Chamber

for soldering, vacuum and cooling

Heating plate PCB

Process chamber structure for Condenso Optional viewing window with camera

Galden

storage container

Filter granules

Low medium consumption

Resource-conserving and efcient

After soldering, the assembly is passed onto the cooling process. Process gas is extracted and cleaned

at the same time. Therefore, a large part of the Galden

can be reused – which is a solution that saves

a great deal on materials, and is environmentally friendly! A vacuum is created during extraction which

also ensures that soldering material is dried quickly.

The extracted Galden

is ltered and cleared of impurities

using granules. Approx. 99.9 % of the medium can be

recovered as a result. The cleaned fluid is made available

in a container for other processes. “Loss of vaporisation” is

low during soldering due to hermetically sealing the process

chamber. As well as little need for maintenance, you benet

from low medium consumption, and save money as a result.

› No loss of vaporisation in the process chamber

› Medium filtering and re-use

› Environmentally friendly

Condenso series | Medium consumption

Void-free (cavity-free) soldering with unleaded

solders is an important requirement for man-

ufacturing power electronics. However, lower

void rates can only be achieved with soldering

processes where the molten solder is subjected

to a vacuum.

The residues that remain in the soldered joint can

escape more easily due to the vacuum. The Con-

denso series can be tted with a vacuum pump

as an option for this reason. You end up with

soldered joints with a surface binding proportion

of up to 99 %. Vacuum can also be drawn during

the melt phase, even before the actual solder-

ing process. This doesn’t just allow the Galden

steam to be evenly distributed in the process area,

but also enables the solvent and moisture to be

de-gassed from the solder paste. In addition, the

atmosphere can also be varied in the process

chamber throughout the whole dwell time as well

the temperature.

Why vacuum?

Reliable, reproducible soldered joints

Tliq

Pressure