Silver-free bar solder

  • Silver-free lead-free alloy for wave, selective and rework applications
  • Reliability comparable to silver-containing alloys in terms of thermal fatigue resistance and joint strength
  • Lower total cost of ownership due to lower material costs, high yield and a wide process window
  • Excellent wetting performance and low defect rate
  • Lowest dross formation
  • Good performance in various soldering processes

The Vaculoy process

ALPHA Vaculoy solders are manufactured from high-purity raw materials.

The company’s own Vaculoy process produces alloys with lower viscosity and reduced dross content. The result is a high-purity solder alloy that is free from moulded-in impurities and trapped oxides.

This proprietary process step prior to casting results in the following advantages:

  • Removal of finely dispersed suspended oxides contained in the raw materials
  • Increased flowability, resulting in fewer soldering defects
  • Reduced dross formation ensures that solder baths remain clean for longer.

ALPHA SnCX Plus 07

ALPHA SnCX Plus 07 is a silver-free, lead-free alloy that can be used as a replacement for SnPb, SAC305 and other SAC alloys with low silver content in wave soldering, selective soldering, pre-tinning and rework processes.

This material has been developed to minimise dross formation and copper dissolution compared to silver-containing alloys.

It significantly reduces total cost of ownership without compromising soldering and reliability performance on simple to moderately complex assemblies.

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