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What kind of aluminum ladder is a good aluminum ladder? When buying ladders in everyday life, you have to think about such a problem. Here are some good ways to know good aluminum ladders.


  Aluminum alloy ladder aluminum-based alloy. The main alloying elements are copper, silicon, magnesium, zinc, manganese, nickel, iron, titanium, chromium, lithium and other minor alloying elements. Aluminum alloy ladder low density, but the intensity is relatively high, close to or better than high-quality steel, good plasticity, can be processed into a variety of profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in industry, the use of second only to steel.


  Aluminum ladder divided into two categories: cast aluminum, used in the cast state; deformation of aluminum, can withstand the pressure processing, mechanical properties higher than the as-cast. Machinable into various forms, specifications of aluminum alloy. Mainly used in the manufacture of aviation equipment, daily necessities, such as building windows and doors.


  Aluminum alloy can be divided according to the processing of deformed aluminum and aluminum casting. Deformed aluminum alloy is divided into non-heat-treatable aluminum alloy and heat-treatable aluminum alloy. Not heat treatment can not be enhanced by heat treatment to improve mechanical properties, can only be achieved by cold deformation deformation, which mainly includes high purity aluminum, industrial high purity aluminum, industrial aluminum and rustproof aluminum. Heat-treated and tempered aluminum alloy can improve the mechanical properties by means of heat treatment such as quenching and aging. It can be divided into hard aluminum, wrought aluminum, super-hard aluminum and special aluminum alloy.


  Some aluminum ladders can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance.


  Cast aluminum alloy according to the chemical composition can be divided into aluminum-silicon alloy, aluminum-copper alloy, aluminum-magnesium alloy, aluminum-zinc alloy and aluminum rare earth alloy, aluminum-silicon alloy which has a simple aluminum-silicon alloy (not heat strengthened, low mechanical properties, Good performance), special aluminum-silicon alloy (heat treatment can be strengthened, high mechanical properties, casting good performance).