How can I control the hardness of 6063 aluminum profile at 6-9 degrees?
Classification: extension material, non heat treatment alloy and heat treatment alloy1.1 non heat treated alloys: pure aluminum - 1000 series, Al Mn alloy - 3000 series, Al Si alloy - 4000 series, Al Mg alloy - 5000 Series1.2 heat treatment of Al Cu Mg alloy alloy: 2000, aluminum magnesium silicon alloy - 6000 series aluminium zinc magnesium alloy - 7000.Two, alloy number: China's current general is the American Aluminum Association "Aluminium Association" numberExamples are as follows: 1070-H14 (pure aluminum)2017-T4 (heat treatment alloy)3004-H32 (non heat treated alloy)2.1 first digit: indicates the main addition of alloying elements1: pure aluminum2: the main alloy element added copper3: the main alloying elements are manganese or manganese and magnesium4: the main alloy element is added silicon5: the main alloying element is magnesium6: mainly add alloy elements for silicon and magnesium7: the main alloying elements are zinc and magnesium8: a new alloy that does not belong to the above alloy series2.2, second digits: an alloy that indicates the addition of alloying elements or impurities in the original alloy0: table alloy1: table original alloy by the first amendment2: table original alloy after second modifications2.3, third, and four digits:Pure aluminum: represents the original alloyAlloy: the designation of individual alloys"- >: the back of Hn or Tn indicates the condition of work hardening or the symbol of heat treatment state-Hn: indicating the symbol for non heat treated alloys-Tn: a symbol for heat treatment alloysHeat treatment of 2 aluminium and aluminium alloyA chain symbol: if the alloy element is added, it is not enough to meet the requirements, but still needs cold processing, quenching and agingTreatment and soft burning to obtain the required strength and performanceAs a result of quenching and tempering, the result of quenching and tempering is chain
Two 、 soft burning treatment:2.1 purpose:Materials for stretching and stretching include rolling materials, extrusion materials and forging materials:Casting - Hot Processing - cold processing - finished materialIn the process of hot or cold processing processing, material processing hardening, the strength increases or lead to work hardening, the strength increases or lead to reduced processing. In order to eliminate the work hardening, for cold working before or after the application of heat treatment is soft burning treatment. Its purpose is to make use of the material is needed.2.2 classification:Due to the different conditions of soft burning:2.2.1 part of soft burning: only part of the work hardening is eliminated, the treatment temperature is below the recrystallization temperature, the actual temperature depends on the strength, and the higher the strength, the lower the treatment temperature2.2.2 completely soft burning: treatment temperature in the recrystallization temperature or slightly higher, so that the material recrystallization, and completely eliminate the work hardening, also make the strength to the lowest stateThere is time and soft burning:2.2.3 soft burning before cold or cold start process, soft burning treatment added, usually completely soft burning, its purpose in the recovery process, and make the next function more smoothly, and the control of the organization, in order to fit for the final product requirements.2.2.4 ultimate soft burning: the main purpose is to adjust the final strength level of the finished product, that is, to adjust the chain3 processing common sense