[China Aluminum] Everyone knows that aluminum rods are a highly-consumed and highly polluting process. Therefore, in many cases, other ways of removing the scale surface of the 7075 aluminum rod are adopted as far as possible, and before the anticorrosive treatment is performed on the inner wall of some large container equipment, the pickling treatment is not adopted, but sand blasting is used to remove scales. This can also reduce the pollution of the environment. Introduce the method of blasting 7075 aluminum rods to everyone today.
The method of sandblasting to remove the iron oxide scale of the 7075 aluminum rod is one of the methods used to descale the surface of the 7075 aluminum rod before cold rolling or cold drawing. Sandblasting is the use of sandblasting equipment to spray fine granular steel grit to impact the 7075 aluminum rod to remove the iron oxide skin on the steel surface.
Sand blasting and pickling have the following advantages compared to pickling:
1) When sandblasting is used, the rust of the finished cold drawn steel is less than that of the pickling method;
2) When sandblasting is used, the treatment cost is lower than that of pickling.
3) When sandblasting is used, steel consumption is less than half that of the acid pickling method;
After the blasting is completed, the 7075 aluminum rod needs to be treated with a rotary cylinder. The steel to be processed is placed in a rotatable drum which is rotated at a speed of 40 to 50 r/min for 10 to 2 c) min. As the tool steel SK collides with each other as the drum rotates, the oxide scale on the surface of the 7075 aluminum rod is removed However, for larger workpieces, the use of rollers is large and the noise during operation is large, so this method is less used.
This is the blasting process of the 7075 aluminum rod.
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