How to identify the quality of aluminum frame?

by:Zeyi     2021-12-03
Aluminum profile frame refers to the use of aluminum extruded profile as the frame and fan material as the base material for stress, and the aluminum alloy workbench composed of wood and plastic is separated from the fence. Among them, the aluminum alloy workbench has become the mainstream of the development of the times. Aluminum row is mainly used in the refrigeration system of cold storage at 10℃ to -45℃, and it is an ideal evaporator for freezing and cold storage of various foods. After continuous evolution, the aluminum frame has gradually replaced the plastic steel material. In today's home appliances, electronics, electrical appliances, machinery, food and other industries, it has reflected the very high and real smell of the times, so how to distinguish the quality of the aluminum frame ? We may probably distinguish from important aspects such as the original data, size deviation, mechanical function, pattern and price of the aluminum profile frame to facilitate the purchase of consumers. 1. The quality of the original material The quality of the original material mainly refers to the quality of the aluminum profile. The nominal quality of the original material directly affects the nominal aesthetics and insurance performance of the frame. Consumers may identify it from the following aspects: look at the name of the aluminum frame frame Whether there are aluminum chips, burrs or oil stains; see if there are white spots, freckles, uneven color or obvious color difference in the name of the frame; see if there are obvious injuries, such as cracks, scratches, indentations, and dents in the name of the frame; see Whether there are particles in the name, you can also touch it to see if the name is obviously uneven. Application fields of industrial aluminum profiles Generally speaking, industrial aluminum profile profiles refer to all aluminum profiles except for architectural doors and windows, curtain walls, indoor and outdoor decoration and aluminum profiles for architectural structures. The size deviation is based on the national standard for aluminum profile frames. The width and height of the frame notch should not exceed 2000mm±1.0mm, the verticality of the front and side of the frame should not exceed 2000mm, and the allowable deviation range should not exceed 2.0mm. The size of the part has a deviation category, and the smaller the size deviation, the better. If it exceeds the specified deviation category, this aluminum frame is a failing frame. Mechanical function The mechanical function of the aluminum profile frame includes the thickness of the profile, tensile strength, yield strength, hardness, oxide film thickness and so on. Thickness ① Profile thickness: The thickness of the important force-bearing member of aluminum profile door is 2.0mm; the thickness of the important force-bearing member of aluminum profile window is 1.4mm. If it is lower than this standard, the frame is a failing product and cannot be used. ② Oxide film thickness: The nominal oxide film thickness of the aluminum profile frame must be at least 10μm. Consumers may use a fingernail to scratch the name of the frame when purchasing. If the oxide film may be wiped off, the thickness of the film does not meet the standard. Strength: According to the quality requirements of the aluminum profile frame defined by the country, its tensile strength is 157N/mm2, and the yield strength is 108N/mm2. The consumer may bend the profile slightly by hand when purchasing, if it is possible to recover quickly In its original state, the strength of the frame data is up to the standard, and it is a passing product. 4. Fittings and connecting parts Whether there is any overflow of glass glue at the joints of the fittings and fittings. Check whether the structural parts are qualified, such as whether the hinges and screws are tightened, whether there are quality problems, whether other components are firmly connected, and whether the sealing function is qualified. Aluminum alloy industrial material is an alloy material with aluminum as the main component. The aluminum rod is melted and extruded to obtain aluminum materials with different cross-sectional shapes. However, the proportion of the added alloy is different. The mechanical properties of the industrial aluminum profiles produced are The application areas are also different. V: Pattern As people’s quality of life improves, the pattern of aluminum profile frames is also improving. Depending on the function and opening method, it may be roughly divided into push-pull, flat-open, top-hung, and foldable patterns. Each pattern has different characteristics. For example, the above-hanging type is more frugal and can only open a little bit, which is both ventilated and safe. Six: The price chooses the aluminum frame produced by the regular manufacturer. The quality of the frame should be judged from the above aspects including material, thickness and appearance quality. The price of high-quality frame is 30% more expensive than inferior frame, and the thickness of inferior frame aluminum profile Often below 1.2mm, the tensile strength and yield strength are not up to standard, the insurance function is not guaranteed, and the price is absolutely cheap. Consumers must choose carefully, knowing that cheap is not good.
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