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Top-side Preheater from ACE Helps Selective Soldering
Topside pre-heater.
Spokane Valley, WA — ACE Production Technologies is introducing a real-time top side pre-heating module that applies heat to the top side of the PC board during soldering. For high-mass assemblies, this top-side preheating promotes the draw of the solder through the barrel to the top side of the board, enhancing the formation of solder fillets on the top side. The implementation of internal continuous pre-heat, during the selective soldering process, improves thermal distribution and solderability of difficult assemblies.

Large, high-mass assemblies are a challenge for any soldering process, but are particularly troublesome for selective soldering, where process heat is applied only to the bottom side of the assembly. The ability to apply continuous, real-time top-side pre-heating during the selective soldering process is critical to achieving good soldering results when processing such assemblies. This function is not practical or possible on machines that grip and robotically move the PC board, since the pre-heater would need to travel with the board and the gripper simply gets in the way. The unique design of all of the company's selective soldering machines keeps the PC board stationary while the flux and solder stations move beneath.

The top-side heating module can be used as the primary pre-heating function, or to maximize productivity when used in combination with the company's discrete pre-heaters to maintain board temperature during the soldering operation. An optical pyrometer reads the actual PC board temperature with real-time closed loop control.


For more information, contact: A.C.E. Production Technologies, 5018 Marble Court, Spokane, WA 99206 509-924-4898 fax: 509-924-4898. Web:
http://www.ace-protech.com

See at ATE Booth #6171.

See at IPC Midwest Booth #336.

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