However, the effect of indoor shading is not as good as external shading, it only blocks the light, but not the heat. When the light encounters the inner shading facilities, the radiant heat has already entered the room through the glass, and the glass temperature will rise very high. As for the external sunshade, only that part of the sunlight will reach the outer surface of the glass window directly. In general, bright indoor blinds can only block 17% of the solar radiation heat, while the outdoor horizontal sunshade with an elevation of 45 °south can block 68% of the solar radiation heat. The shading effect of the two is very different.
At present, spray-free materials have been successfully used in side skirts, central control panels, DVD panels, glove boxes, sunshades, instrument panels and other automotive parts in the automotive field.
Why the car stereo can not be exposed to the sun, the car audio is mostly installed on the upper part of the dashboard; if the door and window seals are not strict, they should be replaced, otherwise the loudspeakers are easy to rust and damage, or even cause short-circuit burning of the mainframe; the circuit boards and plastic components in the audio mainframe have different degrees of aging due to temperature changes. In the scorching sun, it is good to use sunshades to ward off the scorching sun and avoid direct sunlight.
1, the choice of car sunshade material is now the most on the market is aluminum film pvc material, aluminum film material effectively reflect light and internal PVC bubbles effectively insulate the conduction of thermal energy, can play the role of thermal insulation and cooling. So the size of the aluminum film and the thickness of the pvc material determine the effect of use. When buying this kind of sunshade, it is best to choose a model with a sucker, although it will take more time to place each time, but the model without a sucker is more likely to fall from the inside of the glass, which loses the meaning of using sunshade. It is recommended that we try to choose thicker ones when buying, and the effect is definitely better than the ordinary ones.
Car owners who are more attentive to car maintenance usually open the car sunshade curtain after parking, which can be customized according to the car. It is mounted on the front windshield and is fixed by four large transparent suckers that can be washed and will not leave a mark on the glass. The unique corrugated design can refract most of the heat energy in the sun, infrared and ultraviolet rays, ensuring that the temperature of the center console will not rise a lot, and the temperature in the car is also much lower.
Car umbrellas are useful. According to the sunscreen principle and the shape of the car, the car sunshade covers from the front windshield to the rear windshield. The sun umbrella which can effectively reduce the temperature rise in the car when parking at high temperature is called car sunshade.
The heat preservation of the greenhouse is very high in summer, so all the vents around the vegetable greenhouse must be opened. If the temperature is too high, the top of the vegetable greenhouse can be covered with sunshade net to cool down. In the sunny day, the temperature in the shed should be measured in time. As soon as the temperature rises to more than 30 ℃, open the ventilation vents on both sides and adjust the vents to stabilize the temperature in the shed at 25 ℃-30 ℃ as far as possible. Take light enhancement measures to increase light intensity and prolong light time; select agricultural film with high light transmittance and wipe it frequently to ensure that the surface of agricultural film is clean; cover white plastic film; hang reflective curtain on the back wall; prune and pick leaves in time to enhance the light transmittance of the field.
Car body interior decoration refers to the car interior parts that protect or decorate the human body, as well as car accessories to achieve certain functions, including instrument panels, seats and safety devices, airbags, sunshades, car rearview mirrors, door interiors, floor interiors and other military interiors.
At present, spray-free plastics have been successfully used in side skirts, central control panels, DVD panels, glove boxes, sunshades, instrument panels and other automotive parts in the automotive field. Bioplastics bioplastics are produced by using original plants as raw materials, such as sugar cane and corn, under the action of microorganisms. Commonly used plastics are generally synthesized from petroleum products, and there are often small molecular harmful substances that do not fully react, while bioplastics are prepared into automobile interior parts to reduce the amount of VOCs volatilization in the car because of the use of renewable materials with low toxicity and low harm. In addition, this bioplastic can be decomposed to facilitate subsequent recycling, so it is a more environmentally friendly type of plastic.
Car sunshade can prevent leather seats and dashboards from being damaged by ultraviolet rays. Direct exposure to the sun will make the temperature in the car as high as 70 degrees. Not only the shell of the central console is easy to deform, instruments and other equipment on the dashboard are also damaged by high temperature, such as aging components, pin soldering, etc., sunshade can effectively avoid direct sunlight.
2. Thermal commonality first of all, it refers to the connection between different kinds of metals or between metals and non-metals by heating metals and manipulating the principle of thermal expansion or thermal melting. For example: aluminum sheet for copper core of computer radiator, embedded welding of horn net, composite of steel-plastic pipe, sealing of aluminum foil (toothpaste skin), motor rotor, electric heating pipe sealing and so on. 4. Automotive supplies industry: the automotive supplies industry continues to develop new cars and adopt different car interior accessories, the use of high packaging equipment technology is mainly used for car sunshade panels, car door panels, car airbags, car floor mats, car anti-skid mats, automobile leather pressing, and so on.