Industrial aluminum processing process

by:Zeyi     2021-04-30
Aluminum work started;    aluminum is one of the six major metal elements in the natural world. In China, aluminum is rich in resources, exceeding the content of iron by 2/3, but it is far less than iron in resource development and utilization. The primary reason is the use of resources. As well as the lack of product development field; China has now listed the development of aluminum resources as a key development project, which is mainly reflected in industrial production. In recent years, the development speed of industrial aluminum profile products in China has accelerated, and the development of aluminum resources has been The continuous improvement of technology, the sensitive addition of product categories, and the continuous improvement of the utilization rate of aluminum resources have accelerated the development of China's aluminum resources. The chemical properties and physical functions of aluminum: The surface of aluminum is silvery white, and the weight is lighter, but it has high electrical conductivity, thermal conductivity and ductility, and has high corrosion resistance in relation to other metals; pure aluminum is A very soft substance, it is necessary to increase its strength and hardness by adding other alloy elements; aluminum is a very vivid chemical element, soluble in acid and alkali, and is a typical bisexual substance And long-term exposure to the surface will naturally form a protective film, which has a certain protective effect.  Aluminum profile product processing flow:   Aluminum is formed by forming other alloying elements to obtain an aluminum ingot (aluminum ingot is the raw material for melting and casting aluminum rods).  Aluminum rods are obtained by melting and casting aluminum ingots (aluminum rods are used to produce raw materials for kneading industrial aluminum profiles).  Aluminum rods to form industrial aluminum profiles need to go through the western process:   ①: furnace heating.  ②: Mold planning (a mold is a product kneading and shaping tool planned according to product needs). ③: Use a kneading machine (6063-T5 series common profile kneading machine is generally 1300-1600 tons, if you need to make a higher standard profile, choose a higher insight kneading machine according to the actual situation), and get it through a mold. profile products with different interfaces.  ④: Aluminum profile correction.  ⑤: Straighten.  ⑥: Aging (aging is a key step that affects the strength and hardness of industrial aluminum products)   ⑦: oxidation treatment.  ⑧: Sandblasting oxidation (sandblasting oxidation is to refine the surface stretch pattern of the profile, and the secondary surface treatment can refine the surface micropores of the industrial aluminum profile and enhance the ability of anti-oxidation). oxidation treatment process:   ①Aluminum profile surface treatment:   Aluminum profile surface treatment is also called surface pretreatment, which uses physical and chemical substances to remove dirt on the surface of the aluminum profile to expose the aluminum profile body, which is convenient for later Oxidize the surface of the aluminum profile. ②Aluminum profile surface degreasing process: The purpose of the aluminum profile degreasing process is to remove industrial lubricating oil and anticorrosive oil on the surface of the aluminum profile, as well as dirt and impurities attached to the surface of the profile, to ensure uniform alkali corrosion of the aluminum profile, and to ensure the cleanliness of the alkali corrosion tank; Surface treatment quality of aluminum profiles. ③Aluminum profile acid etching process: The    aluminum profile surface acid etching process is to perform surface acid corrosion treatment after degreasing of the aluminum profile. The primary purpose is to remove the oxide formed by the oxidation of other metal elements on the surface of the aluminum profile and the natural oxide film formed by the profile. ; After the acid corrosion treatment, it needs to be washed immediately, and the washing temperature is controlled as early as 50 ℃ to avoid flow marks on the surface of the profile, and then clean with active water. As the aluminum profile contains copper elements, the surface becomes dark after the acid rot test. It needs to be soaked in nitric acid solution for 3-5 minutes to make the surface bright silver. ④Alkaline etching process for aluminum profiles: The primary purpose of the alkaline etching process for aluminum profiles is roughly the same as the acid etching process. It removes residual substances and degeneration layers on the surface of the aluminum profile during the oxidation process, and eliminates the aluminum profile left on the surface during kneading Scratch defects; alkaline etching treatment on the surface of aluminum profile plays a vital role in the overall quality of the surface of aluminum profile.   The power supply is the most widely used for direct current. The applied voltage depends on the conductivity of the electrolyte, temperature and aluminum content, generally 15-20V. The process parameters have a significant impact on the function of the membrane.

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