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Moomization is the condensation of the volatile substances discharged by the car interior and material on the glass. The atomization test is to perform atomization tests of the internal decorative materials of the car to achieve the control of the volatile substances in these materials. Effectively reducing environmental pollution in the car has become an important means for automotive and automotive interior materials production enterprises to control the quality of products.
Why do you do atomization testing?
Internal decorative materials such as leather, plastics, textiles, and adhesives, etc., all contain some volatile substances, especially under the sun. High, which will exacerbate this volatile.
These volatile gases are condensed on car windows or windshields, causing poor sight, which will affect the driver's sight and driving safety; some volatile substances will affect the health of the driver. Therefore, in order to reasonably control the production of volatile substances, it is necessary to perform atomization tests for materials used for car interior. Materials that exceed the standard indicators that are miraculously exceed the standard indicators will not be used for car interior.
The origin of atomization test
In the 1970s, some large auto manufacturers in Europe have begun to study the fog characteristics of the interior of the car, In the early 1980s, the Drafting Committee of the German Automobile Standard and the Standards for Synthetic Materials Standard formed a fog working group to conduct a systematic research on the reproduction of foggy testing methods and methods. In 1992, the corresponding standard DIN75201 was released Determination of the Windscreen Fogging Characteristics of Trim Materials in Motor Vehice. Subsequently, the American Motor Vehicle Engineer Association and the International Standardization Organization made some modifications on the basis of DIN75201 and issued relevant standards ISO 6452 and SAE J1756. Based on the above -mentioned standards in the world's major automobile manufacturing companies, they have promulgated the corporate standards of fogging, and have put forward relevant requirements for the fog characteristics of automobile interior parts.
The significance of volatile hazards and detection
Control the air quality in the car. Test start. The volatile substances in the car interior material are volatile after heating, and it will be condensed into fog on the windshield. This phenomenon is called fog, and its condensate is also called condensed components.
1) The volatile gas condenses on the windshield of the car windshield, causing sight of Liang Liang
2) Some volatile substances to the human body Harm, affecting the health of the driving passenger.
The generation of fog will affect drivingThe attention of the staff, physical and mental health, and then affect driving safety. Reasonably control the generation of volatile substances, and it is necessary to volatilize the mogic performance (also known as atomization performance) for materials for car interior. Essence
The cause of volatilization into fog
Auto carpet, leather, instrument board, roof felt, seat and other decorative parts used Glossal, plastic and rubber parts, fabrics, paint, coatings, insulation materials, adhesive interior materials, especially under the sun, the temperature in the car is high, which will exacerbate the generation of volatile substances.
The volatile substances that can be volatilized in the car interior material volatilize into the air. The hot air encounters cooling objects, and the volatile substances are condensed into liquid attachment to the cooling object. The process of becoming a fog is the process of volatilization of material-condensation process.
1. Globalism, Misty Method:
The sample of the samples in the fog cup is condensed by the gas steamed from heated in the fog cup, which is condensed in the heating cup. On the low -temperature rippling plate, compare and calculate the luster values (fog value) before and after the condensation of the pimple plate, to get the fog value of the sample.
2. Weight method:
The samples of the samples in the fog cup are condensed on the low -temperature aluminum foil. The weight changes before and after the mealing aluminum foil can be obtained by the weight of the sample atomization -condensate.
