Spray-free plastics are more and more used in home appliances and automobiles because of their excellent appearance, environmental protection and economy. In the field of household appliances, non-spraying materials are used in soymilk machines, drinking fountains, electric cookers, water heaters, washing machines, refrigerators, air conditioners, televisions and so on. In the automotive field, spray-free materials can be used for DVD face frames, central control panels, side skirts, glove boxes, sunshades, instrument panels, etc.
In addition to its light weight, due to the high 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 * panels, 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 boards 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.
Thank you for watching, please reprint and indicate the source of the wide source greenhouse. Thank you for your cooperation. The multi-span greenhouse greenhouse is an upgrade style of the single arch greenhouse, due to the ultra-high utilization rate of the multi-span greenhouse greenhouse and the level of mechanization automation. Secondly, from the control system of the multi-span greenhouse greenhouse, electric sunshade, electric film, window opening, ventilation, electric heat preservation and electric fan water curtain have been realized. The control ability of the greenhouse is more stable and reasonable, the work efficiency is higher, do not need too much manual operation, only need to press the switch of the distribution cabinet, looking at the production in some backward areas ten years ago or even now. This is a great progress for facility agriculture in our country. Secondly, the interior of our multi-span greenhouse can be equipped with mechanized automatic fertilizer spraying machine, automatic seeder and even Internet of things control is now a very common system.
Recently, the temperature has changed greatly. In order to prevent frost damage, it is necessary to strengthen field management and do a good job of anti-freezing and heat preservation. Large areas of open field vegetables, especially leafy vegetables such as green vegetables and spinach, should be covered with non-woven cloth, old plastic film, sunshade net or rice straw before the cold wave of rain and snow. The overwintering vegetables in the greenhouse and the eggplant and fruit vegetables that have been transplanted in the early stage should be timely added to the middle greenhouse, the second film, the small arch shed, etc., take multi-layer covering measures to keep warm, remove the mulch in time in a sunny day, increase the light transmission, and increase the temperature in the shed. The temperature rises at noon and ventilates properly.
Near Xiaoshan Volkswagen lossless car audio modification, because the car audio is mostly installed in the upper part of the dashboard, in order to avoid sunlight, the effect of using sunshade is better. If the door and window sealing strip is not strict, it should be replaced, otherwise the loudspeaker is easy to rust and damage, or even cause short circuit to burn the main engine. The specific heat of the circuit board and plastic components in the car audio mainframe is different, so it is affected by the temperature change to a different extent. In the scorching sun, it is good to use the sunshade to resist the scorching sun and avoid the direct sunlight.
After understanding the situation, the District Federation of Industry and Commerce and Qingdao Micro Dust Public Welfare Foundation decided to launch a support initiative. Caring people from all walks of life in society have extended a helping hand to donate money and materials. Wanggezhuang Street Chamber of Commerce in the district was the first to donate 10,000 yuan, and other caring enterprises also donated their love before the National Day. 30 dusty sunshine youth love bags were sent to the children of Shihe Primary School, including eye lights, school uniforms, stormsuit, jump rope, sunshade hats, thermal cups, study sets and other 20 kinds of learning and daily necessities.
If the car is parked outdoors and exposed to the sun, if the car is covered with clothes, it can prevent ultraviolet damage to car paint, interior decoration and tires, thus greatly increasing the service life of the car. 3. Sunshade curtain, insulated and good-looking in the sun, the temperature inside the car with closed windows will rise sharply to 50 or 60 degrees Celsius or even higher, and the high temperature will damage the dashboard and leather seats.