What are the major factors determining the quality of aluminum profiles?
Material, section size, fit tolerance, surface treatment quality, etc.
Then, how to distinguish the aluminum profile is good or bad? Let's get to know those aluminum profiles that are not qualified.First, extrusion defects.Aluminum extrusion process for machine equipment is perfect, process technology is mature and whether the operation staff misconduct and other reasons, will lead to aluminum flakes, such as inclusion, delamination, chromatic aberration, distortion and other defects, affecting the quality of aluminum profiles.Second, the film thickness is thin.Industrial aluminum oxide film thickness standard should be not less than 10um (m). If the thickness is not enough, the surface of the aluminum profile is easy to rust and corrode and shorten the service life. In order to save the cost, the thickness of the oxide film is only 2 to 4um, and some even have no oxide film. It is estimated that each reduction of 1um film thickness can reduce power consumption by more than 150 yuan per ton. Thus, they can earn a lot of profits, that is why some customers say that certain companies quoted lower prices than us.Third, the chemical composition is not qualified.Some manufacturers in order to retain customers, at the incorporation of a large number of miscellaneous scrap aluminum, aluminum can greatly reduce the cost, but will lead to industrial aluminum unqualified chemical compositions, seriously endanger the life of aluminum.Fourth, reduce the wall thickness of profiles.Some manufacturers will make aluminum profile wall thickness is insufficient, originally 1.5MM thick aluminum, they in order to save costs, only 1.2MM, in this way, an aluminum prices must be cheaper. But customers do not know, but also that a good supplier found, in fact, cheated, but also to help him count the money.
With customers in the process of aluminum found billion purchase of aluminum profile, most do not know how to see the quality of aluminum profiles. And sometimes, many users in order to save costs, and select some cheaper industrial aluminum to do the work table stent, resulting in not long after the emergence of cracking, fading situation.