order to ensure the straightness of the sunshade fabric, we need

7 views 11:59 pm 0 Comments January 11, 2024
order to ensure the straightness of the sunshade fabric, we need

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At first, the improved locomotive did not have any front windows. After the EF58 electric locomotive was put into operation, the locomotive was modified according to the climatic environment along the line, such as installing an icicle cutting plate above the front window glass to prevent the running locomotive from hitting the icicles falling at the entrance of the tunnel and causing damage to the window. and add a cover to the whistle. In the later period, when the locomotive was transferred to the warmer climate area, the whistle cover of the locomotive was removed, but some locomotives only removed the icicle cutting plate and retained the whistle cover during car body maintenance. In addition, some EF58 electric locomotives in Hiroshima area are also equipped with front window windows, but the purpose is completely different from that of crossing the line, but it is used as a sunshade.

PC endurance board integrates daylighting, thermal insulation and sound insulation, which can be used for greenhouse, furniture canopy, office sound insulation, outdoor advertising light box and so on. Foreign countries even appeared in addition to the supporting structure, pure polycarbonate material of large transparent lighting house, a sunshine, crystal transparent, warm and pleasant. In the aspect of greenhouse construction, there are greenhouses built with PC endurance panels, greenhouses with gables using PC endurance panels, and greenhouses with gables and sidewalls using sun panels. In terms of greenhouse efficacy, there are production-based greenhouse, trade greenhouse based on flower trading center, and greenhouse based on scientific research. PC endurance board is a widely used building material, which can also be used in sunshade and canopy.

Yes. Unless the car is affixed with a darker glass explosion-proof film, it is difficult to recognize the condition inside the car near the car body in broad daylight, let alone a surveillance camera 2-3 meters high. However, according to the requirements of the “Technical conditions for the Safety of Motor vehicle Operation”, the windshield of the car and the laminated glass used by drivers to observe the line of sight can thus be seen that the transmittance should be higher than or equal to 70%, and all laminated glass cannot post reflective sunshade film.

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.

(2) strengthening the shading measures inside and outside the window on the premise of meeting the design requirements of the building, adding external sunshade panels, awnings and appropriately increasing the length of the southward balcony can play a certain shading effect. Heat-reflecting fabric curtains coated with metal film are arranged on the inside of the window, which has a decorative effect on the front, forming a less mobile space layer about 50mm thick between the glass and the curtains. In this way, a good effect of thermal reflection and thermal insulation can be achieved, but the direct lighting is poor and should be made into a movable type. In addition, installing blinds with certain thermal reflection on the inside of the window can also obtain a certain thermal insulation effect.

The so-called “bright window action”, as the name implies, is the car window bright action. According to the relevant regulations, all car windows are not allowed to carry sunshade films with reflective properties, and the transmittance of ordinary refractive protective films should be more than 50%, that is, the transparency of window glass needs to be more than 50%. The film transmittance of the front windshield and exterior rearview mirror glass of all cars should be higher than 70%.

In order to effectively block the sun, car sunshade umbrellas with high shading rate should be given priority when buying car sunshade, and in principle, more than 90% of the styles are preferable, among which excellent car sunshade umbrellas claimed to have a sunshade rate of 99% can be found. In addition, although ultraviolet radiation is not directly related to the coolness of the car, if you care about sunburn and tanning, it is also best to confirm the UV blocking rate of car sunshade. For external use, silver or white models that reflect sunlight can be selected; as for side windows and rear glass, non-reflective black car sunshades are recommended.

order to ensure the straightness of the sunshade fabric, we need

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In the design and development of interior fabric, we often use fiber materials with fine denier and high hole to reduce the rigidity of the fiber and increase the soft touch of the fabric. at the same time, we can also use different yarn shrinkage to achieve the shrinkage elasticity and thick feeling of the fabric; in order to ensure the straightness of the sunshade fabric, we need to stiffen the fabric. In order to increase the friction coefficient of the seat synthetic leather surface, we choose the surface embossed texture with a strong sense of particles; in the coating of the dashboard or door panel area, in order to meet the delicate comfort in the process of use, we often use fine frosted texture and matte gloss treatment at the same time.

Sunshades protect telescopes, reflecting light and background heat from the sun, earth and moon into space. The observatory must maintain a low temperature in order to complete groundbreaking scientific research in infrared light, which is invisible to the human eye and feels like heat.