[China Aluminum Industry Network] Six series of aluminum plates are aluminum-magnesium-silicon alloys, which are represented by grades 6061, 6063 and 6082. Different from other seven brand aluminum plates, the state of the 6 series aluminum plate is dominated by the T state, and more is the T5 and T6 states. There is only one word difference. What is the difference between these two states? Wallpaper Roller,Best Wallpaper Roller,Wallpaper Roller Brayer,Wallpaper Corner Pressing Roller Jiangmen Nichiyo Decorative Material Co.,Ltd. , https://www.nichiyopt.com
Before explaining the difference between the T5 and T6 states, the user must first understand the following 2 terms:
Aging: The process of eliminating metal internal stress.
Quenching: The metal is heated to a certain temperature and suddenly cooled to the required hardness. 2, 6, 7 series aluminum plate can be quenched to increase strength.
The T5 state means that the aluminum sheet is extruded from the extruder and then cooled by air to rapidly reduce the temperature to the required hardness (Jerskers 8-12 hardness). T6 state refers to the fact that the aluminum plate is cooled by water after being extruded from the extruder to cool the aluminum plate instantaneously, so that the aluminum plate reaches a higher hardness requirement (Webster 13.5 or more).
The use of air-cooling to cool down for a long time, usually 2-3 days, we call it natural aging; and water cooling time is short, we call artificial aging. The main difference between the T5 and T6 states is in intensity. The strength of the T6 state is higher than that of the T5 state, and the performance in other aspects is similar. In terms of price, because of the difference in production process, the price per ton of T6 aluminum sheet is 500-1000 Yuan higher than the T5 price.
What is the elimination of internal stress? In the production process of aluminum plates, due to heat and extrusion, the density of crystals is not uniform, and the energy is not completely released. It is accumulated inside the aluminum plate. This energy is called internal stress. Some users of the production process (such as heating, bending, deep drawing, stretching, etc.) will release the internal stress of the aluminum plate, resulting in aluminum plate bending, wave pattern, surface inequality, so you need to release the internal stress of the aluminum plate.
The process of eliminating internal stress is very simple. After the aluminum plate goes down the assembly line, the manufacturer will add a process to do a little stretching with the machine to release the energy inside the aluminum plate.
The state of the aluminum plate that eliminates internal stress is represented by the number Tx51, such as: 6061T651, 6082T651, etc.