First, it is difficult to accurately grasp. Because the speed is too fast, drivers cannot fully and accurately perceive the instantaneous changes inside and outside the car, and it is impossible to obtain enough information on road conditions within a short time. It is difficult to accurately grasp and take appropriate measures in the event of an emergency. Especially in the case of unfamiliar road conditions, relying solely on the so-called resilience and driving experience is far from enough. A little inattentiveness leads to serious accident consequences;
The second is to reduce the ability to view. Because the faster the vehicle speed, the farther away from the point of view, this gives the driver a certain visual limit under the condition that the point of gaze moves forward, and then affects the driver's correct identification and judgment of things and makes them look Do not continue to decline in ability, can not play normally when dealing with unexpected incidents;
The third is causing paralysis. When a driver is driving at a high speed, it is not only easy to enter a paralyzed state, but also his mind is easily relaxed. This can neither make a correct judgment on the speed of the vehicle being driven, nor can it accurately discriminate the position and speed of pedestrians and non-motor vehicles. Often when passing or meeting a car, it is not a collision of vehicles that causes a scratching accident;
The fourth is to induce fatigue driving. Due to speeding, the probability of overtaking and driving will increase, and the driving distance will be continuously shortened. This will give the driver a high concentration of energy and attention and will directly bring about psychological stress and physical energy consumption. Weakness, long time, very close and easy to produce symptoms of fatigue, not "drowsy" is to play drowsiness, resulting in accidents;
The fifth is distraction. In the process of speeding, the driver must not only pay attention to the dynamics in front of him and do a good job of overtaking and going to the car, but also notice that the operating brake, clutch, steering, acceleration and inspection of the instrument in the vehicle are often dispersed due to multiple transfers. Attentiveness, or feeling exhausted, leads to multiple accidents;
Sixth, it brings judgment errors. According to research data from the roots, when a driver is speeding for a long time, thinking activities are not only easy to get tired, but sometimes they are gradually stiff and stiff, and they are often slow and dull when driving at variable speeds. Therefore, in the event of an accident, drivers often make mistakes in judging errors and mishandling;
Seven is affecting normal operation. Due to the long-term speeding, the driver generally responds coldly to some weak irritating factors, except that external stimulation factors have a psychological effect on the driver. Sometimes they respond to the fact that they should not react. On the contrary, they are hesitant to respond and should not be able to operate in a timely and accurate manner.
Eighth is a security incident. Speeding will not only develop a bad driving habit, but it will also seriously affect the normal driving and safety performance of the vehicle. Since speeding exceeds the vehicle-specific work index, the work intensity and load of the vehicle are increased, making all parts have to increase the intensity of wear, thereby shortening the life of the vehicle. At the same time, it also brings certain security risks to safe driving.
Nine is to increase the possibility of vertical conflict. Speeding vehicles are often followed by other vehicles. When the current vehicle is braked, the rear vehicle will end up being too close.
Tenth increases the possibility of rollovers. If the speed is too fast, the centrifugal force will increase when turning, the speed will increase twice and the centrifugal force will increase four times. The higher the speed, the greater the centrifugal force. In case of a situation where the wheel is a little urgent, it is easy to overturn.
Eleven influences the driver’s judgment ability. The faster the speed, the shorter the reaction time.
Twelve is to increase the severity of accident consequences. The faster the speed, the greater the impact, the speed doubled, the impact doubled, and the more serious accidents occurred.
Thermoforming is a manufacturing process used to shape plastic sheets into various custom design products. It involves heating a plastic sheet until it becomes pliable, then using a mold or a vacuum to form it into the desired custom shape.
Thermoforming and vacuum forming are both processes used to shape plastic sheets into specific forms. However, there are some differences between the two techniques:
1. Process: In thermoforming, a plastic sheet is heated until it becomes pliable, and then it is pressed against a mold using pressure or a vacuum. Vacuum forming, on the other hand, relies solely on the use of a vacuum to draw the heated plastic sheet onto the mold.
2. Mold complexity: Thermoforming is typically used for more complex shapes and intricate molds, as it allows for greater detail and precision. Vacuum forming, on the other hand, is better suited for simpler shapes and molds that do not require as much detail.
3. Material thickness: Thermoforming is often used for thicker plastic sheets, typically ranging from 0.030 to 0.250 inches in thickness. Vacuum forming is more commonly used for thinner plastic sheets, typically ranging from 0.005 to 0.060 inches in thickness.
4. Production volume: Thermoforming is generally more suitable for high-volume production due to its faster cycle times and ability to handle larger sheets of plastic. Vacuum forming is better suited for low to medium volume production, as it has slower cycle times and is limited by the size of the vacuum forming machine.
5. Cost: Thermoforming typically requires more expensive equipment and molds, making it a more costly process compared to vacuum forming. Vacuum forming, on the other hand, is a more cost-effective option for smaller production runs or prototypes.
Overall, thermoforming is a more advanced and versatile process that offers greater precision and complexity, while vacuum forming is a simpler and more cost-effective option for less complex shapes and smaller production volumes.
Thermoforming is a versatile process that is widely used in industries such as packaging, automotive, aerospace, and medical. It offers advantages such as cost-effectiveness, quick turnaround times, and the ability to produce complex shapes with high precision.
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