On September 6, 2022, the U.S. Department of Commerce issued the 2022 Chip and Technology Act, which aims to cut off the supply of advanced semiconductor chip technology, equipment and materials to China, accelerate the return of the chip industry to the United States through subsidies, isolate China's chip industry from the world, and reshape the global chip industry chain supply chain pattern.

In the past few decades, chips have been shrinking according to Moore's Law, the size of chips has become smaller and smaller, and the performance has become higher and higher. Because of this, computers that used to be behemoths can become thin and light in our palms, as well as mobile phones, TVs, smart watches, etc., which have brought infinite convenience to our lives.

1. In the production process of the sorting machine, the magnetic roller has a high speed and a large moment of inertia. Although high-speed dynamic balance is performed, vibration occurs. It is recommended that in the area where the user is located, the foundation depth of the machine base should be greater than the depth of the freezing layer.

1. When starting the test sorting machine, do not stand in front of it to avoid hurting people with iron.2. When operating, pay attention to whether the machine is running smoothly, whether there is abnormal noise and iron removal, and the unloading tape should not be skewed or broken. During the operation of the coal conveyor belt, the iron remover generally does not stop.

The maintenance of the test sorting machine includes the following three points:1. The test sorting machine manufacturer should check and sort out in time. After the end of every day, the machine should be cleaned in time to check whether the screws at various parts are loose and the wear conditions of vulnerable parts such as claws and screens.