According to the low orbit altitude and the geometric model of the satellite, we have designed a radio frequency permeable sunshade for the satellite, which can prevent light from reaching all the diffuse parts of most satellite bodies and bodies. The visor is laid flat on the chassis during launch and unfolded during satellite separation from Falcon 9. The sunscreen completely blocks the light from reaching the antenna, thus preventing the light from being reflected from the diffuse antenna. This method not only avoids the thermal effect of the darkening of the antenna surface, but also has a greater impact on the brightness reduction. As mentioned earlier, the first VisorSat prototype was launched with the eighth batch of star chains, and we will install these black mirror sunshades on all satellites after June.
In addition to its light weight, due to the higher heat resistance of EPP automotive pillows, polypropylene foam is more advantageous than polyethylene foam and polystyrene foam in areas where higher operating temperatures are required, such as sunshades, instrument insulation panels and areas where the temperature between the doors is easy to rise. However, in addition to the field of energy absorption and heat resistance, polypropylene foam also has good thermal weldability, which makes polypropylene foam is also widely used in car sheds, doors, car roofs, carpet support materials, sound insulation panels, door linings and luggage racks, etc., and its good thermal processing type makes it widely used in control boxes, shock-proof panels and other components. In addition, polypropylene foam can also make steering wheel, door inner panel energy absorption protection pad, buffer pad, headrest, toolbox, cushion, dashboard and so on.
Spray-free plastic injection molded parts can meet the requirements of matte, highlight or flashing pearlescent and other car companies. The spray painting process is eliminated, the production of VOCs is controlled from the source, the damage to the environment is reduced, and the manufacturing cost is reduced. Poly Sailong spray-free plastic has been successfully used in side skirts, central control panels, DVD panels, glove boxes, sunshades, instrument panels and other automotive parts in the automotive field.
Vehicle windshield sunshade cloth, also known as car sunshade, it can reduce the temperature in the car to a certain extent, protect the instrument and seat equipment in the car, and play a certain role. The material of sunshade is basically made of aluminum foil and multi-layer bubble film, which has good strength, toughness and impact resistance. Aluminum foil has the ability to reflect light, thus reducing thermal radiation and has low thermal radiation conductivity.
When we are camping outdoors for picnics, in addition to tents, we usually have to prepare a canopy. The main function of the canopy is sunshade, sunscreen and rain protection. It is generally set up at the entrance of the tent and combined with the tent to create a feeling of one room and one living room outdoors.
The weekend was sunny and sunny, and the time was just right for the family of three to come by themselves. First sign in, familiarize themselves with the venue, and then move freely. As a photography enthusiast, you must take pictures when you see the beauty of the outdoors. Have to praise the staff, the venue is very well arranged, wooden seats, sunshade cloth, drinks, snacks, really satisfy all my imagination for a picnic.
Fire and rescue workers dug puddles for the whales with their bare hands, then covered them with wet towels and kept them moist, while other rescue workers at the scene used umbrellas to artificially hold up “sunshades” to cool the whales. The temperature at the scene is above 36 ℃ and someone has fainted from heatstroke.
Indoor shading attaches equal importance to sunshade and decoration, generally divided into window decoration and cloth art. At present, there are quite a lot of varieties and colors of indoor shading in our country, and the shading effect is also different, but whether it is blinds, rolling curtains and cloth art, all the sunlight is treated after entering the room, and the heat island effect is formed between the curtains and the glass. The curtains have no sealing effect indoors, and the heat is easily diffused indoors. To reduce heat, the only way to reduce heat is to use air-conditioning for cooling. Indoor products are generally sunshade and uninsulated, so it is also hot without sunshine at night (of course, this has something to do with wall insulation). The use of outdoor way is to block the heat outdoors, so that outdoor air convection faster, so it will not form a heat island effect, outdoor sunshade materials should use materials that dissipate heat quickly, such as aluminum alloy and so on.