\”Physical examination\” of non-metallic materials, N multiple equipment only for extraordinary quality أداة الاختبار –

Large \"physical examination\" of non-metallic materials, N multiple equipment only for extraordinary quality

In addition to skin and steel bones

Cars have also a different \"inner heart\"

Leather seats, soft plastic packaging, rubber parts

Each accessory made of non-metallic material

all require strict testing by multiple instruments

Capture every detail and make every quality

Let the car be \"stiff and soft\" and drive far

It was also mentioned in previous VOC testing that testing of non-metallic materials is not as straightforward as environmental testing.In order to ensure the performance of these non-metallic materials.Metallic material accessories during use, more comprehensive testing should be carried out.Today we will keep pace with Geely Automobile and take stock of other links important test points in the testing of non-metallic material systems.the quality of the products.

A big wave of non-metallic accessories is coming, detection only To improve quality

Plastic products are everywhere in our lives, but I think many people don\'t know that plexiglass is actually a thermoplastic, because it is different from the shape we knowsons. From another point of view, these non-metallic materials that look very high-end on cars, in some special circumstances or environments, their microscopic changes are not visible to our naked eyes, and sometimes the impact of this change on performance is crucial. .

It is understood that plastics were first used in the automobile industry in the 1950s, commercialized in the 1960s, developed rapidly in the 1970s and entered the era of lightweight and high-strength composite materials in the 1980s. Relevant data shows that actell, on average, the application of plastics in Taiwanese automobiles has reached 200 kilograms, accounting for nearly 20% of the total vehicle weight. This does not include the large amount of rubber, leather and other materials found on the automobile.

Automols creative interiors use non-woven fabrics wovens on large areas Metal material

It can be said that the application of non-metallic materials in automobile production has developed from single interior parts to various functional parts and parts. For example, front and rear lights, bumpers, etc. While guaranteeing its aesthetics, it also has higher requirements in terms of mechanical resistance and impact performance.

Based on these aspects, whether in terms of quantity or quality, the way to choose high-quality non-metallic materials has become an indispensable topic in the research and development process of automobile manufacturers. How to choose?Engineers The team will start from the composition, durability, performance and other aspects of non-metallic materials, and use thermogravimetric analysis , micro-infrared spectroscopy and a series of research and development equipment for testing to ensure that car owners have better fuel economy in their car life, safety and reliability.

Three devices peel off the \"coat\" of the material

As can be seen in the first non-metallic material composition analysis test in the video, Geely Pendant automotive research and development process, non-metallic materials will be tested for their composition through many experiments, and the changes in their composition in special environments will be obtained to judge the performance of hardware accessories. So, what is the use of these equipment test?

Micro-Infrared Fourier Spectrometer

The first equipment is a Fourier micro-infrared spectrometer, which mainly combines microscopes and spectrometers for comprehensive analysis. This equipment has the characteristics of convenient sample preparation and high sensitivity. , the limit detection can be as low as 10 nanograms, allowing more comprehensive analysis of micro-areas.As you can see in the video, the engineer placed the test sample under the microscope and after debugging the equipment, the Microscopic conditions of the sample crosS section will be clearly reflected in the computer to further realize the analysis and identification of the type of foreign bodies and components on non-metallic materials.

The second instrument is a thermogravimetric analyzer, which mainly analyzes the weight loss of non-metallic materials under the thermodynamic curve. When the substance measured When there is sublimation, vaporization, gas decomposition or the loss of crystal water during the heating process, the mass of the measured substance will change. In other words, through the data reflected by the test curve, engineers can determine to what degree the measured substance changes and how much of the substance is lost.

The third device is a differential scanning calorimeter, this equipment can provide experiments in material research and development, performance testing and quality control.control. It can measure the relationship between temperature and heat flow related to the internal thermal transition.rne of the material, and determine the characteristics of the material, such as glass transition temperature, cold crystallization, melting, etc.

Not only, when combined with the first two devices, testers can also more accurately judge changes in material composition when temperature changes through microscopic analysis, thereby providing research and development of highly metallic materials that provide more comprehensive data support.

Guaranteed performance, experience ice, fire and tears

Clearly clarifying the composition, characteristics and weight loss of non-metallic materials is not the entire test. Performance testing under special circumstances is also very important. The second part of the video is environmental testing for non-metallic materials. For example, rubber parts or ecSamples of materials on automobiles will be “closed” in these experimental boxes. These experimental boxes can simulate low temperature, high temperature, light, ozone and other environments according to testing requirements.

Environmental simulation test equipment

In these simulations After placing it in a certain environment for a certain period of time, the tester will get the changes of the \'sample in the special environment through experimental analysis. For example, whether the rubber material will become brittle and cracked under low temperature, and whether it will be soft and deformed under high temperature light. If detected S There are performance problems with accessories made of non-metallic materials, they will be dealt with as soon as possible and the materials will be replaced or the design will be optimized to ensure that the vehicle will not have abnormal performance problems in the environment real.

Tensile Test Sample for Universal Testing Machine

As mentioned aboveNowadays, many functional parts of automobiles are also made of non-metallic materials, so there must be requirements for their strength, and mechanical performance testing is naturally indispensable. As can be seen in the video, the engineers placed the test samples on the universal testing machine and debugged them. Once complete, the input torque begins to stretch. At this time, the sample is stretched and deformed instantly, and then breaks. Although it was only a short while, the computer linked next to it recorded the test data. The engineer will analyze and process the data and select suitable non-metallic materials for further research.

Non-metallic materialsEnvironmental Materials Laboratory

In fact, for the entire research and development of automotive materials, these are still only \'a part. With the development of science and technology, more and more new materials are developed and applied, such as metal materials, lightweight materials... But from these R&D tests, we can see the R&D attitude of independent brands. The century-old brand once had the reputation \"Although the taste is expensive, it does not save material resources, and although the preparation is complicated, it does not save labor.\" However, contemporary Chinese automobile craftsmen have also the spirit of advocating science and seeking quality.

May the making be no longer cold and inintegrate technology into life. Geely Automobile\'s R&D experiences have once again opened our eyes. Finally, I would like to remind everyone that you should be careful when purchasing non-metallic products. hardware accessories. It is better to buy original products as these products have undergone rigorous testing and testing. Only then can they be used safely!

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