How to select high-quality aluminum? 1, high-quality aluminum edge smooth, no glitches, very close convergence of various parts, no loose rivet solid, all parts are intact. Otherwise, it is inferior products. 2, high quality aluminum alloy surface is smooth, shiny, unique luster aluminum alloy radiator overall color processing, heat sink processing, no holes, no ash and other phenomena. If the surface is rough, shiny gray, the bottom surface of the pores, ash, etc., indicate that aluminum products and shoddy goods. 3, aluminum products in the flat bottom surface with your fingers pressed aluminum products, observed deformation conditions. If severely deformed, and then at the bottom of the aluminum thin Dongguan aluminum products processing, quality is poor. High-quality aluminum products are generally help Bodi thick. 4, lower surface without any good quality aluminum or white noise, or if there is a white noise, suggesting an aluminum material containing iron, zinc, copper and other impurities, or a salt erosion conditions cause this type of products is poor. What factors will affect the timeliness of an aluminum solution treatment process on aluminum to achieve a good time to strengthen not overheat under the effect of quenching temperature conditions, over-burn and grain growth should be higher CNC precision machining, holding time to be longer, which is conducive to the solution evenly over the maximum saturation; Also do not precipitate during quenching of the second stage, or in the subsequent aging treatment, precipitated phase will play the role of nuclei , leading to local uneven aging precipitation strengthening effect is reduced. 2, the regression phenomenon aluminum aluminum alloy after quenching natural aging reheated to 200? 250 ℃, and then rapidly cooled to room temperature, the strength of the alloy is lowered, re-softening performance back to just quenched at room temperature, and then quenched alloy as a new, still normal natural aging, a phenomenon known as regression phenomenon. In theory return during the processing time is limited, but in fact, return processing is difficult to completely re-dissolve precipitation, precipitation strengthening performance after aging the aging effects of the continuous weakening of local precipitation. Therefore, for the maintenance of aircraft alloy rivets only, you can take advantage of this phenomenon, prepare riveting, and other alloys rarely use value return process. 3, the impact of aging temperature was analyzed at various aging temperatures, the critical nucleus size, the number, composition and growth of the polymerization at different speeds, if the temperature is too low, due to the diffusion problem, difficult to form the GP region processing, aging After strength, low hardness, when the temperature is too high efficiency, easy to spread, in a supersaturated solid solution precipitated the critical nucleus size large aging strength, low hardness, generated over time. Thus, a variety of alloys are the most suitable aging temperature. Aluminum luggage rack processing, processing of aluminum products provided by Cavey Cavey Aluminum Products Ltd. of Dongguan City. Aluminum Products Co., Ltd., Dongguan City, Cavey (kaiwei.bcvbc.com) strong, credible, in Dongguan, Guangdong and other hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Cavey innovative ideas will lead to aluminum products and you hand into the brilliant, for a better future!