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Analysis of Several Common Defects in the Extrusion Process of Aluminum Alloy Profile

2021-04-14

Measures to reduce the granular burr

1.Improve the quality of aluminum rods, grab from fountainhead, the requirement for the surface quality of profiles, to clean the chamber during the process of casting rods, optimizing raw materials and auxiliary materials, such as coating material products prohibited from entering the again, selects the high quality aluminum ingots, etc., with strong casting process control, to prevent the casting defects, such as improve the high temperature metal plasticity, reduce the chance of granular hair prickles.


2.Pay close attention to mold quality, optimize mold structure design, reduce dead zone metal inflow, improve mold strength and stiffness, reduce mold extrusion deformation, adopt reasonable nitriding process, improve working belt hardness and improve polishing quality, reduce metal adhesion.


3.The optimized process parameters, different aluminum alloy composition and section, according to the principle of aluminum alloy extrusion, with reasonable extruding temperature, segmenting the extrusion speed control, reduce the temperature difference stick and mould temperature, increasing the extrusion cylinder with great difference in temperature, can further reduce the dead zone into metal and casting rod surface metal oxides and mixed flow, thereby reducing slag and burr.


4.The "6S" site management is adopted for all the work sites to improve the environmental quality, clean up the surface of the casting rod, reduce the adhesion of ash and dust, eliminate the "running and leaking", timely clean up the dust on the surface of the profile, and reduce the adhesion of ash and dust as much as possible.

Related Reading:Aluminum Alloy Profile,Aluminium Profile

 
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