Mars dust causes serious damage to sensitive equipment, so the researchers created a room to simulate the surface of Mars. Test before the device launches on this red planet.
Dust is a nuisance on Earth. On Mars, he may be deadly. This is because its main ingredient is silicate, which, if inhaled into the lungs, can become a dangerous chemical substance. He is made up of a few tiny particles, which means that even an amazing airlock may not filter out all the nasty particles. But even more disturbing is that Mars dust is not only harmful to people, but even due to the high concentration of magnetic iron oxide in the machine itself, it can cause serious damage to the outer shell of the machine. In order to obtain information on the impact of Martian surface dust and other conditions on research equipment, Spanish researchers designed a mini version of Mars, a vacuum chamber with the same pressure, temperature, atmosphere, radiation level, and dust. This means that "Mati Machine" can create an atmosphere with temperatures ranging from cold -265 degrees Fahrenheit to hot 301 degrees Fahrenheit, and 95% carbon dioxide gas. The super-Mars dust system was created using two screens that were only 63 μm wide at the same time. The screen was used to shake randomly the dust around the system to simulate the pattern that might occur on the surface of Mars. This is not the first time the surface of the planet has been simulated, but this time it contains the dust released in a vacuum.
The system will help NASA test plans to launch equipment for the future Mars mission in March 2016. Machines performing this mission can handle severe dust on Mars.
With the development of the steel structure market, the use of box beams in bridges, power stations, boilers, and high-rise buildings is increasing. Comparing from the stress point of view, the ratio of the torsional constant of the I-shaped interface and the box-shaped interface with the same cross-sectional area is about 1:500, and the ratio of the maximum torsional shear stress is approximately 30:1. And its "â–¡"-shaped cross-sectional form has high bending resistance under the action of bidirectional stress. In addition, from the overall stability, the box beam is also better than the I beam. Therefore, in a specific application, the box beam has its unique structural advantages, which can achieve better economic advantages.
Scope of application:
This production line is suitable for the production of high-strength box beam structures where the diameter of the ventilation holes on the partitions in the main column is small, and the four sides of the partitions must be welded. Including the prefabrication and assembly welding of the main box, the prefabricated installation of the internal partition, the external corbel, etc.
Features:
1. Good quality and high efficiency.
2. Through careful and meticulous technical preparation and design of special paired tires, errors can be well controlled and construction difficulty is reduced. At the same time, the adjustment process of the group alignment is reduced, which not only ensures the quality, but also greatly improves the production efficiency.
3. The separator is welded by electro-slag welding, which improves the production efficiency, reduces the production cost, and solves the problem of difficult welding of the internal separator.
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Wuxi Zhouxiang Complete Set of Welding Equipment Co., Ltd. , https://www.beamweldingmachine.com