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What are the price factors that affect aluminum processing- PTJ Manufacturing Shop

We all know that there are many types of aluminum profiles on the market, and the price difference is also relatively large. Whether it is as a manufacturer or an applicator of aluminum profiles, we will pay attention to the price of aluminum profiles, we pay attention to the price of aluminum profiles. The aspects involved will mainly include the composition, formulation, extrusion type and treatment of the aluminum profile, which will affect the price of the aluminum profile to rise or fall. PTJ (MINGHE) Factory is a strong manufacturer specializing in the processing of precision parts for aluminum profiles. Next, we will share with you the factors affecting the price of aluminum profiles. Let's take a look.

A: Material composition of aluminum profiles

The aluminum profile is made of aluminum as a base material, and other metal elements are added and heat-extruded into various types of aluminum materials. The added metal elements are: magnesium, copper, chromium, silicon, zinc and manganese, according to the addition of alloying elements. The different types of aluminum profiles are different in type and performance, and the types are different. Each aluminum profile has a different formulation. The alloying elements in different series of aluminum profiles have different standards. In addition to the national standards, each manufacturer has its own internal parameters. For example, in the 6063 series aluminum profile, the content of aluminum is 97.35%-9838%, the content of magnesium is 0.45%-0.9%, the content of silicon is 0.2%-0.6%, and the content of other alloys such as copper, chromium and zinc. All should be less than or equal to 0.1%, only to reach this content range, in order to comply with the national regulations. In order to reduce the cost, some aluminum profile manufacturers have reduced the proportion of alloying elements in the formulation to a minimum, so that the strength and hardness of the aluminum profiles are greatly reduced, and the mechanical properties are completely out of standard. Some manufacturers add waste aluminum or miscellaneous materials to the raw materials. This is one of the reasons why aluminum profiles are cheap.

B: Aluminum smelting furnace

The production process is a ring-and-loop process. After selecting the composition of the aluminum alloy, it is placed in a melting furnace for heating and casting. At this time, the melting furnace is also very important. There are many styles of smelting furnaces, such as circular furnaces, square furnaces, chimneys, chimneys, gas burning, and electric burning. There are one ton and ten tons. In short, there are various kinds. The quality of the aluminum profiles cast by the melting furnace is different. For example, a furnace with a chimney is better than a furnace without a chimney. Because the aluminum rod is affected by fuel and raw materials during heating, it will generate a lot of waste gas and residue. The furnace that is discharged without the chimney, the exhaust gas and the residue have nowhere to be discharged, and can only be discharged back into the aluminum water, so that the aluminum profile produced will contain a large amount of air bubbles inside, and the surface is not flat. This low-quality aluminum profile The price is definitely not expensive.

C: Surface treatment of aluminum profiles

The surface of the aluminum profile after extrusion is very thin, only 2-4μm, the texture is soft, the corrosion resistance is very poor, and it is easy to react with oxygen and carbon dioxide in the air to form aluminum oxide and aluminum carbonate, in order to make the film layer Thickening and strengthening the corrosion resistance and appearance of aluminum profiles require surface treatment of the aluminum profiles. After multiple surface treatments, the thickness of the oxide layer of the aluminum profile reaches 10 μm or more, which can reach the national standard, and some can even exceed the national standard by more than 12 μm. According to different models, there are many methods for surface treatment of aluminum profiles, such as anodizing, electrostatic powder coating, electrophoretic coating, sandblasting oxidation, etc. Some surface treatments must be done, such as anodizing;

Some surface treatments are designed to increase the decorative properties, and can be done or not, such as wood grain transfer processing. Since the surface treatment process is simple and complicated, the price of aluminum profiles after different surface treatments varies greatly, such as the price of aluminum profiles used in high-grade decorative applications after fluorocarbon electrostatic spraying. More expensive. In order to reduce the production cost and increase profits, some aluminum profile manufacturers only produce 4-8μm of oxide film, and some have no oxide film at all, even shoddy, resulting in serious price differences.

D: Production process of aluminum profiles

The production of aluminum profiles has to go through multiple production processes, starting from the heating of aluminum rods, extrusion, straightening, aging, surface treatment, and packaging. Each process has its function, and there are also prescribed operational requirements and implementation standards. Going to any process or not doing it will have an impact on the quality of the aluminum profile. For example, the impurities in the aluminum rod of the raw material are more, which will affect the quality of the aluminum substrate after extrusion molding; the extrusion speed and temperature during extrusion are not well controlled, resulting in yellowing and bubble defects on the surface of the aluminum profile; The quality of the machine will also affect the extrusion effect; the time control during aging should be proper. If the artificial aging time is shortened, it seems to save man-hours. In fact, the hardness of the aluminum profile produced is low and the price of the aluminum profile is not enough. It will be relatively cheap, but the effect is not ideal.


We analyzed the price influence factors of aluminum profiles through the material composition, furnace, surface treatment and processing technology of aluminum profiles. PTJ (MINGHE) Factory specializes in the precision machining of aluminum profiles. The company has more than 40 cnc machining centers, which can meet the precision machining tasks of automobiles, medical and optical parts. The company successfully passed the IATF16949 quality management certification last year and successfully entered the auto parts manufacturing. The field is a rare high-paying technology enterprise with qualifications for auto parts manufacturing in Dongguan. Welcome to call us, we will serve you wholeheartedly.


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