What are the standards for temperature setting and control of aluminum profiles? Aluminum profile is one of the main products, with excellent quality, favorable price and excellent technology. Over the years, it has been deeply loved and supported by our customers. The following is to introduce the temperature setting and control of aluminum profiles:

1. Usually, there is a certain error between the temperature and the surface temperature. When setting the surface temperature, it should be set according to the actual temperature of the furnace, and pay close attention to the temperature fluctuation.

2. Aging and heat preservation of aluminum profiles: aging should be carried out in strict accordance with the process requirements, and the heat preservation time should be appropriate to prevent insufficient hardness caused by under-aging or over-aging.

3, aluminum extrusion frame should not be too dense, there should be a gap between materials. The interval between aluminum profiles, especially small and thick materials that are not ventilated, should be larger. When the tube materials are combined with small and thick materials in a frame, the tube materials of aluminum profiles should be placed below, which is beneficial to the aging circulation air supply

4. The aluminum profile produced by extrusion has a low hardness before aging and cannot be used as a finished product. Therefore, in general, it must be aged to improve its strength.

Matters needing attention in post-treatment process of aluminum profile oxidation

Four points for attention in the post-treatment process of aluminum profile oxidation:

(1) Hot water flushing. The purpose of hot water washing is to age the film. However, the water temperature and time should be strictly controlled. If the water temperature is too high, the film will become thinner and the color will fade. The similar problems mentioned above will also occur when the industrial aluminum profile is treated for too long. The suitable temperature and time are: temperature 40 ~ 50℃ for 0.5 ~ 1 min.

(2) drying. It is better to dry naturally, and the workpiece filled with hot water is hung on the shelf obliquely, so that the free water on the working surface flows downwards in a straight direction. The water drops flowing to the corner of the lower end are sucked with a towel, and the color of the film dried by this method is not affected, which is natural.

(3) aging. The aging method of aluminum profiles can be determined according to climatic conditions. It can be exposed to sunlight in summer with sunshine and baked in an oven in rainy days or winter. The technological conditions are: temperature 40 ~ 50℃ for 10 ~ 15 min.

(4) Repair of nonconforming parts. Unqualified conductive oxide films should be picked out before drying and aging, because it is difficult to remove the film after drying and aging and will affect the roughness of the workpiece surface. The author has made some technical explorations on this problem, and through various method tests, it is found that the following methods are effective, simple and do not affect the surface quality of the workpiece. The specific process is as follows. First, the unqualified workpiece is clamped on the fixture for aluminum anodizing, and then the aluminum is anodized in sulfuric acid solution for 2 ~ 3min. When the film is soft and falls off, it can be anodized again after being slightly cleaned by alkali solution and exposed by nitric acid.

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