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The ozone test chambers and ozone climate simulators for aging testing and resistance forecasting. The ozone climate simulators test realistically to determine the durability and service life of different materials- according to international Standards (DIN ISO 1431, ISO 10960, ASTM D 518, JIS K 6259, etc.) with patented testing tools.
In the automotive industry, a great variety of rubber parts are used, such as door seals, wipers, axle covers, fuel hoses, tires, etc. Cracks frequently occur in rubber parts due to environmental factors, particularly due to atmospheric ozone, which breaks the carbon-carbon double bonds. Concerning vehicles, the service life of rubber is a question not just of quality but also of safety, especially if a fuel line or a tire bursts. Consequently, all European car manufacturers have in-house testing directives, based on general and national test standards (DIN, NF, ISO). To determine the fatigue strength, so-called WÖHLER charts are created. The criteria are either individually specified by the car manufacturers or adopted from the standards.
In the aircraft industry, the fatigue strength of rubber parts and elastomers is a particular security aspect. A cable fire caused by cracks in the insulation has devastating consequences which already led to aircraft crashes in the past. In space (Columbus space shuttle), the fatigue strength is important because of the extreme difficulty of repair work. The same applies to the power cables of magnetic levitation trains (Transrapid Maglev Train Shanghai). Specific standards for the testing of cable insulations have been compiled.
Tires for vehicles – cars, trains, elevators, airplanes, buses, trucks, bikes and racing cars – become a security risk in case of a material crack. Moreover, shortcomings in availability are a cost factor.
Rubber parts and/or samples thereof are tested in so-called ozone test chambers (ozone climate simulators). The testing conditions can be set and simulated depending on the application and in accordance with the relevant testing standards. If rubber parts are dynamically strained during subsequent use (tires, windscreen wipers), then test tools (SIMtools) are used in the simulators. For this purpose, Anseros developed specific and patent-protected testing equipment, for example in case of the Anseros Ozone Climate Simulator SIM7300-TH with the testing tool SIMtool 75049 for static and dynamic ozone resistance tests according to ISO 1431-1, continuous and intermittent. Anseros also provides appropriate consultancy for the development of a testing laboratory and for carrying out tests.
For cables and their insulations, specific standards apply, such as the international standard IEC 60811-2-1 – standards which essential differ from the ISO 1431-1 in particular. It may be noted in general that all ozone testing standards (such as ASTM D 1149, VDE 0472, DIN ISO 1431-1, EN50396, IEC60092-351) are different from each other. Special features lie in the longitudinal inflow direction onto the samples and in the turbulent flow through the chamber. These test conditions are exclusively fulfilled by the Anseros Ozone Climate Simulator SIM7300-TH with the testing tool SIMtool 75049 (HD22.1/.2, cables and insulated wires). Anseros is glad to provide you with further information and advice on these issues.
The quality of textiles is rated according to their color fastness and color resistance (ISO 105-G03, AATCC109). The use of an accurate ozone analyzer is important for reliable and reproducible testing. Anseros developed a single beam photometer MP which can selectively detect ozone even in the presence of volatile hydrocarbons (VOC).
Anseros ozone climate simulators are useful for biological, medical and pharmacological studies and tests, for example on bacteria and viruses, cell and plant growth, lung tests, animal husbandry, and furthermore for the development of pharmacological products in the cosmetics sector.
Many devices at home and in industry emit ozone and VOCs. For product type approval tests, Anseros manufactures special test chambers according to UL867, ASTM D 6670, VDE 0700 part 65, DIN EN 60335-2-65. The accuracy of the ozone measurement is ensured by traceability based on DKD-certified instruments.
Outer and inner surfaces are treated in an Anseros chamber to create the predefined required coating properties, such as adhesion. Foams, varnishes, color prints and coatings profit from a highly improved adhesion. In CVD processes in the semiconductor industry, silicon surfaces are configured. APR process chambers are also used for the development of additives and catalysts for protection against ozone influences. Advice and support for such highly application-oriented solutions is provided by Anseros Engineering.
Rubber materials are an important component of the cable- and automotive industry. Cable isolations, door seals, wipers, axis covers, fuel lines and tyres are made of different kind of rubber mixtures. Because of environmental influence, especially atmospheric ozone, rubber parts become brittle and friable. Not only the quality factor is important, but also safety of rubber material is an essential aspect. For example, if the fuel line breaks or the tire unexpectedly bursts, it may cause devastating consequences.
Anseros ozone test cabinets | SIM simulate environmental influence depending on real loading conditions. If the rubber parts, such as tyres or wipers, will be under dynamic load in reality, we will use special testing tools for this kind of simulation. If necessary, our patented testing tools in the ozone climate chamber simulate static and dynamic durability test according to ISO 1431-1. We also use humidity sensors or heating/ cooling systems in the ozone test chambers.
Anseros ozone testing chamber simulate under every testing condition the durability of materials reliably.
The surface treatment industry apply paint, foam, colour prints and other coating on different surfaces. For example, CVD-processes in the semiconductor industry configure silicon surfaces. The ozone test chamber | SIM of ANSEROS treat all kinds of surfaces to improve the adhesion of coating on the surfaces. As a result, this procedure has an increasing effect of quality and the durability of the coating surfaces will be extended.
Medical and pharmacological investigations are essential for medical technology. With regard to medical and technical progress, it is important to analyze and test the processes of bacteria and viruses as well as cell and plant growth in detail. The Anseros ozone test chambers precisely examine the biological processes and simulate different conditions. The cosmetics industry also uses our ozone test rooms to test their products.
Ozone occurs naturally in the atmosphere. It protects us living beings on earth from harmful UV radiation from the sun. However, the ozone gas attacks any elastomeric compounds, causing brittle and cracked materials that are then no longer usable. In our ozone test chambers, this aging process is greatly accelerated through the controlled multiplication of the natural ozone deposit. With the use of highly efficient ozone generators and with the help of high-precision ozone analyzers, the appropriate production and dosing of the ozone gas is guaranteed. The results of this process reliably reflect the product quality of the elastomers as well as the necessary maintenance intervals for safety checks and the use of spare parts.
Do you want to test your materials for longevity? Then ask us about our ozone test chambers! We look forward to your inquiry.
In most cases, they are complex systems to predictively determine the longevity and durability of rubber products (elastomers) under operating conditions. The test systems include devices for ozone generation and measurement as well as other components for climate simulation, for example sensors and control elements for moisture, temperature and climate. Mechanical devices are frequently integrated into the test chambers. Rhythmically exerting stretch or twist forces, they simulate the forces the material samples will have to withstand in everyday use.
Natural atmospheric ozone attacks elastomer compounds and thus leads to embrittlement, cracking and ultimately to malfunction of tires, gaskets, cable insulations and other rubber products in the longer term. In ozone climate test chambers, this aging process is highly accelerated by a controlled multiplication of the natural occurrence of ozone. Thus, the product quality and the necessary maintenance intervals for security checks or replacement of elastomers can be determined.
Ageing of rubber products is caused by temperature, humidity, mechanical stress, and UV-light, but to a major part by the concentration of ozone in the atmosphere. Rubber goods like tires, cable insulation, O-rings, and hoses are manufactured using elastomers containing olefinic double bonds that are sensitive to ozone. Especially under strain cracks can occur. This process is accelerated under dynamic operation. In practice this can cause the bursting of a tire, ignition due to the loss of insulation of a cable, or the cracking of a petrol hose. Different standards like DIN, ISO, VDE, SAE, and ASTM describe static and dynamic methods for the investigation of the behaviour of rubber samples towards ozone. Usually, rubber samples are stretched and ozone is applied at defined temperature, humidity, and air velocity. Anseros is a company with a focus on the application of ozone, providing a wide range of ozone test chambers from a small test unit (SIM pocket) to large units (SIM 8000) with space for testing several tires at the same time. Here, the latest developments are presented.
Rubber, tires and cable insulation must meet strict industry standards worldwide. Resistance and durability in particular are important parameters for product evaluation. Numerous environmental influences, such as ozone, can strongly influence the durability of these materials. Therefore, an ozone test is now mandatory for many rubber and elastomer products and is now part of the routine tests in material development and quality assurance.
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