boron nitride coating represents the number of inches per inch. The higher the ppi value in the filter plate, the more holes per inch, and the smaller the holes, the better the filtering effect.
If the hole is too small, the aluminum alloy will not pass the fluidity limit, so you should choose the correct model.
Aluminium Cff is formed by high-temperature sintering and forms interconnected openings on its outer surface and inside.
When the fluid passes through the microporous channel, suspended matter, colloidal particles and macromolecular organic matter are captured on the surface of the product, and the fluid passes through the microporous channel to produce various physical and chemical effects for purification and filtration.
boron nitride coating is very important for the quality of the molten aluminum melt, which greatly affects the subsequent processing performance and the quality of the final product.
Therefore, all countries in the world attach great importance to the purification of aluminum melt.
There are many reasons for aluminum contamination.
In the smelting process, aluminum is exposed to the atmosphere in the furnace in a molten or semi-molten state, which is easily oxidized, easily reacts with water vapor to absorb hydrogen, and easily forms various forms of non-metallic slag (and coarse intermetallic particles, etc.). wait.
On the other hand, part of the waste in the composition charge contains some non-aluminum impurities during the recycling process.
Since the waste comes from process waste, waste from various processes in the factory, and waste outside the factory, the route is different, the composition is complicated, and the quality is poor.
These impurities are easy to cause bubbles and inclusions in the slab, thereby seriously affecting the purity of the metal melt, thereby further affecting the processing performance, mechanical properties, corrosion resistance and appearance quality of the product.
boron nitride coating has excellent thermal shock resistance, strength, high porosity and specific surface area. It can filter and absorb as few inclusions as possible in molten metal.
With its unique rectification effect, it can prevent smooth and fast laminar flow and prevent bubbles from entering, which is suitable for different refractoriness and casting speed requirements in the foundry industry.
30 Ppi follicular foam can significantly improve the quality of castings and promote cutting, reduce tool wear and reduce manufacturing costs.