Solution heat treatment is applied to many aluminum products to impart certain properties to the metal. Corrosion resistance and hardness are the major two properties that can be imparted through this process. The total duration of the process depends on the alloy composition, cross section and furnace capacity. Process temperatures range from 475-600°C (887-1112°F) for solution reheat, 40-85°C (104-185°F) for water or polymer quench, and 90-245°C (194-473°F) for age hardening.
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Achieving the desired product surface hardness and corrosion resistance properties is essential to the product's final characteristics. For some manufacturers, regular temperature uniformity surveying is a compliance requirement to achieve CQI-9 certification.
- Accurate product thermal profiles that verify end-product conformity to heat treatment requirements
- Identify any hot or cold spots on product loads, furnace zones or specific processes (reheat, quench or age hardening)
- Perform uniformity surveys and document conformity to strict heat treatment specifications (AMS2750, CQI-9)
- Optimize furnace conditions for improved productivity, energy consumption and product quality