This paper introduces the solution to the surface scar of aluminum alloy profile.

During the production and processing of aluminum alloy profiles, all kinds of scars and lines are very easy to appear, and the process reasons for the scars are various, which need to be paid attention to from various aspects:

1. The working belt on the aluminum alloy profile die needs to be polished smoothly, and whether the empty knives of the extrusion die are enough and the surface is smooth.

2, in the process of producing aluminum alloy profiles, pay attention to the production of mold lines. Once the lines are produced, the mold needs to be removed in time to stop production.

3. In the process of profile sawing: it is necessary to clean the sawing sawdust in time for each sawing. Prevent secondary scratches.

4. Similarly, in the process of CNC machining aluminum, it is also necessary to prevent the residual aluminum slag on the fixture from being scratched twice.

Is there a relationship between the quality and weight of industrial aluminum profiles?

Industrial aluminum profile is an alloy material with aluminum as the main component. Aluminum bars can be obtained with different cross-sectional shapes by hot melting and extrusion. However, the mechanical properties and application fields of industrial aluminum profiles are different with different proportions of added alloys.

In general, the better the quality of goods, the higher the price, so is the industrial aluminum profile. In fact, the weight and quality of industrial aluminum profiles are also closely related. Today, I will share with you the relationship between them and some basis for judging the quality.

In the impression of many people, the weight of industrial aluminum profiles is only related to the bearing capacity or price. This is not the case. As long as you have a certain understanding of industrial aluminum profiles, you will know that the weight will also affect the quality.

Normally, each profile has its own unit mass, which is often called rice weight. According to the rice weight, the weight of each profile can be calculated. In general, the heavier the rice weight, the heavier the weight, and the higher the corresponding price. The direct factor that affects the rice weight is the wall thickness of the profile.

Some people like to buy cheap profiles, but they don't know that profiles with up-to-standard quality are not cheap. Some merchants will reduce the wall thickness by 1mm, so the rice weight of profiles will be reduced a little. Don't underestimate this 1mm, the total weight will be reduced a lot, and its price will naturally be much cheaper, which also explains why the prices of some merchants are lower than the average market price.

In fact, the wall thickness of each profile is calculated accurately. If it is not up to standard, it will affect the overall bearing effect, and in serious cases, it may cause the consequences of fracture.

If you only care about the price, you may not consider the quality problem, but if you want to buy a really good profile, you need to consider the parameters of the profile itself, including raw material composition, rice weight, wall thickness and section inertia.

What is the control of the production process of industrial aluminum profiles?

Industrial aluminum profile is an alloy material with aluminum as the main component. Aluminum bars can be obtained with different cross-sectional shapes by hot melting and extrusion. However, the mechanical properties and application fields of industrial aluminum profiles are different with different proportions of added alloys.

① ingot temperature control

Before the extrusion machine, the temperature of the ingot should be measured, and the production can be carried out on the machine only after the process requirements are met.

② Online quenching process

Solution quenching is the basic premise of aging, and aging without solution quenching is meaningless. Therefore, the on-line quenching process (air quenching, air-fog quenching, water quenching, etc.) should be selected at the outlet of extruder according to the ingot brand, profile wall thickness, extrusion speed and quenching equipment condition to ensure that the quenching cooling rate meets the quenching sensitivity requirements of the alloy.

③ Setting and control of aging furnace temperature.

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

④ Aging and heat preservation.

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.

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