Why should the fire truck be painted red

Most of the fire engines we meet on weekdays are red. According to the survey, fire engines in most countries are red. Because it is the most eye-catching, it can be seen from afar.

So do you think about it? Why are fire equipment and markings red? Some people may say that they use the color of fire to symbolize 100,000 fires. This is only a bit right. Experts have found that red can stimulate appetite and people can eat at ease. Red fire signs are placed on flammable key parts to ease people's turmoil and reduce fire accidents. Therefore, the use of red fire engines, for those who are panicked in the fireworks, can play a stabilizing role.

In addition, we share with you: The sunlight consists of seven colors: red, orange, yellow, green, cyan, blue and purple. Their wavelengths and deflection angles are different. When sunlight strikes an object, various objects have different absorption and reflection capabilities for different wavelengths of light, forming various colors. In short, if an object can reflect one or more lights in the sun and absorb the rest of the light, the object will appear as a reflected monochromatic or polychromatic light. In the visible light, the red light has the longest light wave, and the deflection angle is the smallest, and it easily penetrates the water layer, raindrops, dust, and fog. Orange and yellow light are not afraid of obstruction and can penetrate the above objects. Therefore, the fire engine is painted red in order to allow people to see it from far away in dusty weather, dusty environments, or stormy weather, to make way for it so that it can complete the task of extinguishing fires as soon as possible.

CNC Saw Blade Sharpening Machine

CTK-S450CNC

1. Rotate the angle of the grinding wheel to grind the teeth more accurately.
2. The gear grinding machine has small error and high precision.
3. The grinding machine has few transmission mechanisms and is easy to maintain.
Max. Saw Blade OD(mm) Ã˜150-Ã˜450
Pitch range(mm) 24
Saw blade teeth number 10-999
Max. saw blade thickness(mm) 4
Range of cutting angle(degree) 0.1-30
Grinding speed(t/m) 2-60

Net weight (kg) 1100kg
Dimension (LxWxH) (mm) 1300*1310*1650

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