1, aluminum plate, strip, foil rolling new technology:

1) Rough, medium and finish rolling aluminum foil rolling processes are generally divided into rough rolling, medium rolling and finish rolling. Its definition, rolling range and rolling process parameters are as follows: rough rolling: refers to rolling with No. 80 grinding wheel grinding roller; Medium rolling: refers to rolling with No. 220 or No. 180 grinding wheel grinding roller; Finish rolling: refers to rolling with No. 500 or No. 800 grinding wheel grinding roller. 2) Thickness control, aluminum foil thickness and flatness control are the technical keys to aluminum foil production towels. Internationally, the thickness deviation of the two foils is increased from 10% to 3%. Only the use of electronic computer control system can achieve such high requirements.

2. Research on aluminum plate surface cleaning scheme:

Aluminum plate cleaning is to remove the oil seal, grease, rust and other impurities and oxide film on the surface, and create good surface conditions for the formation of an oxide layer on the surface of the aluminum plate and the welding between the aluminum plate. The processing work before the welding of the aluminum plate is very important. In order to ensure the surface quality and welding quality of the aluminum plate, strict cleaning procedures are required to thoroughly remove the grease and oxide film on the surface of the aluminum plate and the welded joint. The degree of cleaning is directly related to the surface quality of aluminum, welding quality. Aluminum cleaning mainly includes oil removal cleaning, chemical cleaning and mechanical cleaning. In the process of aluminum welding, it is often found that there are pores, slag and incomplete welding on the surface of the weld. The main reason is that the surface of the aluminum plate is not clean after cleaning, and oil spots, alkali spots and large areas of water, macula, black spots and so on will be left. After analysis, it is found that there is a problem with the formulation of cleaning fluid, because aluminum is a highly active metal, its standard electrode potential is -1-67V, aluminum is easy to passivate the metal, it is very easy to passivate in the air, and the surface will generate a layer of dense and hard oxide (Al2O3) film, the film is easy to absorb water, not only hinder the weld fusion, but also easily produce pores and slag, thereby reducing the mechanical properties of the weld.

3. Key technologies of aluminum plate in stamping production of body panel:

With the demand for lightweight automobiles, aluminum alloy materials are increasingly used in the field of automobile manufacturing. The aluminum alloy materials such as 2000 series, 5000 series and 6000 series commonly used in the automobile industry are introduced, and the development of aluminum materials, the application trend in body parts and the significance of lightweight of automobiles are briefly described. Starting from the actual site, through the aluminum plate material shearing, distribution, storage, plate, stamping forming, as well as the inspection and repair of aluminum plate parts and other aspects of the field analysis, summed up the four control points, namely, the material, sheet metal demoulding, mold stamping, and put forward to prevent material mildew, solve the problem of plate splitting, control the quality of aluminum plate molding and aluminum plate parts inspection and repair measures. The solution.

4, 6016 automotive aluminum cladding performance and influencing factors of the test study:

Edge grinding is an important process in the assembly and pressing process of the inner and outer panels of automobile body panels, and the bending limit is an important index to evaluate the performance of aluminum edge grinding. In view of 9 kinds of imported 6016 automobile aluminum plates with different properties and batches, a 180-degree three-point bending test was carried out, and the influence of mechanical properties, aging time and pre-stretching amount on the edge performance of 6016 automobile aluminum plates was systematically studied, which provided an important basis for on-site quality and process control. The results show that the material elongation and hardening index have no significant effect on the bending properties of 6016 automobile aluminum plates, and the material anisotropy, aging time and pre-stretching amount have significant effects on the coating properties of 6016 automobile aluminum plates.

5, aluminum strip market analysis and forecast:

According to this year's aluminum plate market, our company has comprehensively analyzed the production capacity, output and market development of the world and China's aluminum plate and strip processing industry. In China's aluminum plate and strip, especially canned materials, architectural decorative panels, aluminum foil blanks, ps plate bases, The development prospects of the container and automobile box board market are predicted.

6. Processing scheme of thin-walled aerospace aluminum plate:

The fixed plate and the moving plate of the open wall test section are typical thin-walled aluminum plate parts. The flatness of the moving plate and the fixed plate is required, and the holes of the moving plate and the fixed plate are guaranteed to overlap, which is difficult to process. We have formulated a detailed technical plan. Through the selection of machine tools, the selection of tools and the selection of coolant, the selection of processing methods, and the selection of auxiliary tools, the problem of processing deformation of thin-walled parts during the milling process is effectively controlled. The working platform better guarantees the flatness of the fixed plate and the movable plate and the consistency of the working hole, and meets the requirements of the design drawings.