ASSCON\u2019s vacuum soldering process combines the advantages of the vapor-phase with the
\nvacuum process.<\/p>\n
Power components require a homogeneous metallic connection
\nwith the PCB to transfer the required current.
\nAssemblies
\nsoldered in ASSCON\u2019s vacuum process exhibit
\ngreatly improved solder joints relative to void formation.
\nParticularly when using lead-free solders the wetting properties
\ndecrease and the solder joints exhibit an increased
\noccurrence of voids and entrapments.
\nThrough use of the vacuum process the developing inclusions
\nare extracted before the solidification phase.<\/p>\n
Vacuum soldering process
\nIn the process zone of the vapor-phase soldering machine
\nthe assembly is pre-heated and soldered under inert conditions.
\nThe vacuum module is integrated in the process zone.
\nImmediately
\nafter completing the soldering process the
\nvacuum module seals the assembly from its environment
\nand starts the evacuation.
\nThe negative pressure removes voids and entrapments
\nfrom the solder which is still in liquid state.
\nThe vacuum module is ventilated and opened again.
\nSubsequently the product moves through the cooling zone
\nto the unload station.<\/p>\n
Machine design
\nThe machine structure is self-supporting. It consists of a
\nload and unload stations, soldering zone, vacuum module,
\ncooling and controller.
\nThrough the use of the load\/unload station the assemblies
\nare moved to the process on a universal work piece carrier
\nand after the automatic cycle is completed the assemblies
\nare ready to be removed.
\nThe key unit of the compact multi chambers machine is the
\nprocess chamber made of stainless steel. The large area
\nheaters are mounted on the outside and insulated against
\nexternal heat radiation. High quality sensors for the heaters,
\nfluid, vapor and cooling zone temperature guarantee
\nutmost process reliability.
\nThe vacuum module consists of the evacuation unit mounted
\nin the process chamber where it is secured with quicklocks
\nfor fast and easy removal for maintenance. Pump,
\nvalves and sensors are integrated in the base.
\nThe efficient cooling zone of the machine is equipped with
\na special blower system, which circulates the medium and
\nflux residues, emanating from the assembly, through a
\ncooling cassette and on to an internal filtration cycle.
\nAn automatic filtration system for microfiltration of the heat
\ntransfer medium is available.
\nAn integrated exhaust system is available to remove vapors
\nand odours from areas outside the process chamber which
\noccur during the de-gassing of the printed circuit board.
\nThe controller is preprogrammed to accept the connection
\nof an external exhaust.
\nThe machine controller sits in an integrated control box and
\ncontains the switch, control, regulators and safety\/fuse elements
\nfor all functional units.<\/p>\n","protected":false},"excerpt":{"rendered":"
ASSCON\u2019s vacuum soldering process combines the advantages of the vapor-phase with the vacuum process. Power components require a homogeneous metallic connection with the PCB to transfer the required current. Assemblies soldered in ASSCON\u2019s vacuum process exhibit greatly improved solder joints relative to void formation. Particularly when using lead-free solders the wetting properties decrease and the…<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"pwb-brand":[],"product_cat":[1588,1554],"product_tag":[],"class_list":["post-4448","product","type-product","status-publish","hentry","product_cat-smt-assembly-equipment-2","product_cat-soldering"],"acf":[],"brands":[],"_links":{"self":[{"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/product\/4448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/comments?post=4448"}],"wp:attachment":[{"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/media?parent=4448"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/pwb-brand?post=4448"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/product_cat?post=4448"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/smans.dev.falkor.alcor.cloud\/en\/wp-json\/wp\/v2\/product_tag?post=4448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}