Optimization of aluminum extrusion die design and manufacture extrusion die is an important tool to ensure that solar photovoltaic aluminum products shape, size precision. Extrusion die design and manufacturing quality is to achieve extrusion production quality, high yield, low cost, efficient and cost of an important guarantee. Therefore, to manufacture high precision aluminum extrusions photovoltaic necessary to optimize extrusion die design and manufacturing. 2.1 The use of advanced high-precision manufacturing equipment extrusion die extrusion mold processing equipment advanced metal extrusion die is to ensure eligibility prerequisite. Therefore, production of photovoltaic aluminum profiles should be advanced mold processing equipment, supplies 2A12T4 aluminum square bar prices, such as CNC, wire cutting, three-axis machining centers, EDM machining centers to improve the precision and performance of the mold. Etching process: the degreasing → washing → etching → washing → washing → alkaline etching → washing → washing → Idemitsu → washing → washing → oxidation composition. After the first etching profiles degreasing, after alkaline etching, 2A12T4 aluminum square bar supplier, a light, complete pre-treatment. The core of the process is etching step, to mechanical pattern, sand, such as by etching decision. The biggest advantage is different from the alkaline etching, etching is going strong mechanical pattern, sand, low aluminum consumption, usually 3-5 minutes to complete, alkaline etching aluminum consumption is almost 1 / 8-1 / 6 from efficiency and resource conservation point of view, is undoubtedly a big step forward etching alkaline etching processes. However, environmental issues have become more prominent etching: pollution toxic gases escape HF acid bath and washing trough Fˉ of. Fluorides are generally highly toxic, treatment more difficult. In addition, 2A12T4 aluminum square bar, after etching process, profiles the appearance of dark black hair, despite the forced continuation of the base erosion and the light, 2A12T4 aluminum square bar Which is good, brightens, but still very dark, not only increasing the step , and loss of gloss, these problems have not yet effective solution.