Ang mga mekanikal na istraktura ng disenyo ng mga practitioner ay madalas na gumagamit ng mga materyales ng aluminyo haluang metal, at ang mga materyales ng aluminyo haluang metal ay subdivided at maraming mga grado. Ang pangunahing dahilan para sa pagpili ng mga materyales ng aluminyo haluang metal ay ang kumbinasyon ng lakas at density.
Pangunahin kong ginamit ang dalawang grado ng aluminyo haluang metal na materyales, Susuriin ko ang dalawang materyales, the choice of aluminum alloy materials.
The first one is the 5000 serye aluminyo alloy, which is mainly used for sheet metal structural parts. Ang 5000 series aluminum plate belongs to the more common alloy aluminum plate series. The main other elements are magnesium, at ang magnesium content ay nasa pagitan ng 3-5%. Kilala rin bilang aluminyo-magnesium haluang metal.
The main features are: mababang density, mataas na makunat na lakas at mataas na paghaba. The density is lower than other series of aluminum alloys. Ang pagproseso ng teknolohiya ay patuloy na paghahagis at lumiligda, which belongs to the series of hot rolled aluminum sheets. Mainly in China's 5000 series aluminum plate is one of the more mature aluminum plate series.
Often used is the 5052, which has good molding processability, kaagnaan pagtutol, weldability, lakas ng pagkapagod, medium static strength, used in the manufacture of aircraft tubing, mga tangke ng gasolina, at transportasyon ng mga sasakyan, ship sheet metal mga bahagi.
The second type is the 6000 serye ng mga aluminyo alloys, which are mainly machined parts. Unlike the 5000 serye, ang 6000 series alloys are added with silicon, so that the hardness of the 6000 series aluminum alloy is greatly improved, and the machining performance is very good. It is also suitable for applications where corrosion resistance and oxidizing requirements are high. Easy to layer, mataas na lakas at malakas na kaagnasan paglaban. I often use 6061 aluminum alloy for machined parts, and the cutting performance is good (5000 series is not good).
Let me talk about the aluminum alloy status code:
F: free processing state (uncommon)
O: Annealing state (the mechanical professional should know, I also sigh here, annealing refers to slowly heating the metal to a certain temperature, for a period of time, and then cooling at a certain speed. This can reduce the material. Kahirapan, improve the cutting process performance, eliminate residual stress, stabilize the size, it is not easy to crack when the sheet metal is bent. Simply speaking, the aluminum alloy O state is soft and soft.
H: Trabaho hardening estado (kilala rin bilang malamig na trabaho hardening, also knowledge in heat treatment courses, katigasan, lakas, wear resistance increased, not easy to process)
T: heat treatment state (T code must be followed by one or more digits, is a stable state product)