Do you know the application of aluminum profiles?
About Extruded Aluminum Profiles
Aluminum is a commonly specified material for extrusion and shape contouring because of its mechanical properties, it is well suited for starting from the stock end to forming metal; its high ductility means that metal can be formed very easily It can be used for various sections without spending a lot of energy in the processing or forming process, which shows that the energy consumption of extruded aluminum profiles is relatively low, which can reduce mold and manufacturing costs.
Type of extruded aluminum profile:
Depending on production needs, a variety of complex extruded aluminum profiles can be created in different thicknesses, where these configuration parameters can have a variety of complex void associations that are required for end-use applications, to facilitate a variety of automated applications, and To meet the weight needs of any performance, a variety of internal voids can be used, the most common type of aluminum profile is the hollow beam profile, which is a variation of the square profile, in addition to other profile types: triangular, single radius, L-shaped, etc. Profiles.
Extruded aluminum profile surface type :
As a by-product of the extrusion process, small lines appear on the surface of the profile from time to time. This is the result of the formation of auxiliary tools during extrusion. Other surface treatments can be specified to remove these lines. To improve the surface finish of the profile section, some Secondary surface preparation operations, such as face milling after the main extrusion process, are specified to reduce the overall surface roughness of the extrusion profile, thereby improving the surface geometry and thus the part profile.
Aluminum profiles are often used in industrial automation applications, such as automated assembly lines and material conveying equipment, production equipment workbenches in the electronics industry, automatic production lines in the packaging industry (conveyor line workbenches/equipment guardrails), industrial inspection system workbenches, industrial profiles in automation Combined very well in production lines, they are strong and flexible, easy to handle manually, and can be configured in various configurations according to automated structures. In addition to traditional automated applications, structural grade aluminum profiles are even designated as part of the weight reduction, which is not difficult to map. It can also be used as a frame for other products, such as automotive, construction, and other fields.
The application of aluminum in automobiles is not surprising. Common applications include car interiors, car luggage racks, and so on. But the use of aluminum in engines is still somewhat unclear to ordinary car buyers. When looking at the configuration of a new car, many people will notice that the automobile (gasoline) engine can be divided into two materials: “cast iron” and “cast aluminum”. Speaking, the difference between the two seems to be only reflected in the material. Today our protagonist is the aluminum engine block.
What is an engine block, we usually call it the cylinder block, that is, the casing of the cylinder. The cylinder is a cylindrical cavity that guides the movement of the piston, and the cylinder block in the narrow sense refers to the casing wrapped outside the cylinder. However, since most of the current car engines are water-cooled, to make the structure compact, the lower crankcase and the cylinder block are usually cast together to form a cylinder block-crankcase group, which is often called the cylinder block. Cylinder block in a broad sense.
The cylinder block is the basic and core part of the engine. Many parts of the engine are installed on it, and it is used to maintain the exact positional relationship of the moving parts. When the cylinder block is working, the working surface is in contact with the high-temperature and high-pressure gas, and the piston performs high-speed reciprocating motion in it. To be able to withstand huge temperature differences, to withstand large mechanical and thermal loads. Therefore, the cylinder block is required to have sufficient stiffness and strength, as well as good heat resistance and thermal conductivity, as well as good corrosion resistance, and wear resistance.
What everyone needs to know is that most of the current passenger cars adopt a horizontal, front-wheel drive structure, and the engine is installed in front of the front axle. This structure is very sensitive to the weight requirements of the front part. If the front of the car is too heavy, it will have a great impact on the handling of the car, and the most common one is understeer, such as a serious push when cornering at high speed. The key to solving this problem is to reduce the weight of the engine, thereby reducing the weight of the front part of the car, reducing the tendency to push the head, and improving the handling of the car. The use of an aluminum alloy engine can effectively reduce the weight of the front part. It should be known that the weight of an aluminum alloy engine is about 10~20 kg lighter than that of a cast iron engine, which is undoubtedly progress for family cars.
·Cast aluminum advantage – good heat dissipation performance
As we all know, the main body of the car engine is composed of the top cylinder head, the middle cylinder block, and the lower oil pan. Now, most of the cylinder heads of the engine are made of aluminum. The reason is that the heat dissipation of aluminum itself is better than that of cast iron. As part of the combustion chamber, the intake, exhaust valves, and valve guides are installed on the cylinder head.
During the operation of the engine, the parts will generate high heat, and the intake and exhaust cams and valve guides are lubricated and cooled by the splash of oil splashed by the crankshaft rotation. On the one hand, the heat is high, and on the other hand, pressure lubrication cannot be used. As the processing technology matures, more and more engines use aluminum cylinder heads with better heat dissipation.
It is worth mentioning that, in addition to the aluminum cylinder head, the aluminum cylinder block is also favored by the majority of customers because of its good heat dissipation and strong anti-knock performance; the engine itself has high heat due to its operation, such a The requirements for heat dissipation are also extremely high. If the thermal conductivity of the cylinder material itself is not good, it is easy to cause the cylinder to explode or reduce its life. However, with the intervention of aluminum, these problems can be solved easily, which can not only solve the basic heat dissipation problem but also reduce the cylinder block. The probability of occurrence of the abnormal internal combustion.
·Cast aluminum advantage – lightweight
In addition to the advantages of aluminum engines in terms of heat dissipation performance, they also have great advantages in lightweighting. As we all know, the lightweight process is a topic of great concern in auto parts. Under the same displacement, the all-aluminum engine is about 20 kilograms lighter than the cast iron engine. According to relevant research, every 10% reduction in the car’s weight can reduce fuel consumption by 6% to 8%. Reasons for recommending a lightweight all-aluminum body and an all-aluminum engine.
Automotive aluminum parts
Nowadays, the automobile industry is developing rapidly, but the energy problem is becoming more and more urgent, and the environmental problems caused by automobiles have also attracted much attention. The development of the new energy automobile industry is an effective way to alleviate the energy crisis, reduce greenhouse gas emissions and reduce environmental pollution. Energy vehicles have become an important direction for the reform and development of the automotive industry.
Different from traditional vehicles, new energy vehicles use batteries as the power to drive the vehicle. It is restricted by the weight of the power battery, the cruising range of the power battery, and the high pressure of the policy of energy conservation and emission reduction. In vehicle design and material application, body Lightweight has become the first issue for car companies to consider. Therefore, battery-powered new energy vehicles are more urgently needed to reduce body weight than traditional vehicles. This also opens up a broader market space for lightweight materials such as aluminum.
Among the lightweight materials for automobiles, the comprehensive cost performance of aluminum alloy materials is higher than that of steel, magnesium, plastics, and composite materials, and has great advantages in terms of application technology, operational safety, and recycling. The density of aluminum is only 1/3 of that of steel, and its weight reduction and energy-saving effects are obvious, and the ride comfort can be better improved under the premise of ensuring safety. At the same time, aluminum is easier to recycle and reuse. The comprehensive cost-effective advantage of aluminum determines that it becomes the best choice for automotive lightweight applications.
The application parts of aluminum in new energy auto parts mainly include the body, wheel hub, chassis, anti-collision beam, power battery, etc. According to the classification of processing forms, aluminum for automobiles is mainly divided into three forms: die-casting, extrusion, and calendering, of which the consumption of die-casting parts accounts for about 80%, and the extruded parts and calendering parts each stand about 10%. Die-casting parts are mainly used for engines, wheels, and other parts, extrusion parts are mainly used for cars, luggage racks, door beams, etc., and rolled parts are mainly used to produce aluminum plates for car bodies.
Among them, the body includes a body frame made of high-performance aluminum profiles and skins and doors made of high-precision aluminum sheets; aluminum alloy wheels (cast aluminum wheels or forged aluminum wheels); chassis includes high-strength section aluminum structure parts and aluminum alloys Forgings: In the past, new energy vehicles mostly used steel materials to make electric vehicle power battery trays, but now the application of aluminum alloy materials has gradually surpassed that of steel materials. Aluminum alloys have obvious advantages in terms of density, compression, and welding lights.
Nowadays, the application range of aluminum alloy profiles is getting wider and wider, and people have more and more choices for aluminum alloy profile products. The aluminum alloy profiles for vehicles stipulate that the compressive strength should be high, the die is more complex, and the wall thickness is thinner and thinner.
Aluminum alloy profiles have a series of excellent characteristics, such as low density, high strength, high bending, good ductility, excellent impact resistance, corrosion resistance, wear resistance, high electrical conductivity, high heat transfer, easy coloring of the surface, and excellent. It has the advantages of excellent production and processing formability and extremely high recycling and recyclability.
Many aluminum alloy profiles are used in the automobile industry. Whether it is considered from the aspects of automobile manufacturing, vehicle operation, and waste automobile recycling, it produces great social and social benefits and is accompanied by an increase in automobile production and social development. This kind of economic benefit is even more significant.
The construction of aluminum for new energy vehicles includes a car body, wheel rim, car chassis, anti-collision beam, wooden floor, power battery, and seat. The car body includes the car body frame made of high-performance aluminum alloy profiles and the car doors made of high-precision aluminum alloy versions; the aluminum wheel hub and the car chassis include high-toughness and large cross-section aluminum alloy profile parts and aluminum alloy profile steel castings; Anti-collision beam bumper made of aluminum profiles; new energy vehicle wooden floor; lithium battery and aluminum ion battery, the battery includes rechargeable battery positive aluminum platinum, rechargeable battery aluminum shell, and battery aluminum tray.
The application of aluminum alloy materials in new energy vehicles varies due to the core concepts of different automobile companies and different car series design schemes. The use of all-aluminum body new energy vehicles is large, while another new energy vehicle usage is relatively small. Some vehicles will purchase aluminum profiles to produce and process components themselves, while some auto companies purchase finished aluminum components to assemble.
The applications of aluminum alloy profiles for vehicles include bumper collision beams, car doors, interior dashboards, front hoods, window frame load-bearing beams, heat pipe radiators, and support frames, and other spare parts.