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Jul 28,2022

What sensors are there in cars

1. The car intake pressure sensor is mainly used to detect the air pressure at the intake of the car engine, so as to ensure that the amount of air sucked in by the engine is within the normal range. 2. The water temperature sensor is mainly used to detect the temperature inside the car's water tank, thereby detecting the actual temperature of the car's engine. Once the water tank temperature is too high, the water temperature sensor will transmit it to the onboard system and ultimately inform the owner. 3. Oxygen sensor, which detects the oxygen concentration in the car exhaust and provides the obtained data to the ECU to calculate the appropriate air fuel ratio. 4. The throttle sensor provides the ECU with the most accurate information on fuel cut-off and fuel air ratio control by detecting the opening angle of the throttle valve. These sensors on the car each have their own functions, but they also work together in coordination. In addition, these sensors constantly monitor various parts of the car, and once a certain part malfunctions, the sensors will immediately play their role.

Jul 28,2022

The production process of powder metallurgy

Powder metallurgy technology has developed rapidly and has become an important component of modern industry with the continuous emergence of new production processes and technical equipment. The production process of powder metallurgy can be divided into five stages: powder making → mixing → forming → sintering → post-treatment. 1、 Powder making: Powder making is the process of making raw materials into powder. Common powder making methods include oxide reduction, atomization, electrolysis, rotating electrode, and mechanical crushing. 2、 Mixing: Mixing is the process of mixing various required powders in a certain proportion and homogenizing them to produce powder billets. The mixing methods are divided into three types: dry, semi dry, and wet. During the powder pre mixing process, due to the different specific gravity of particles with different components, segregation phenomenon may occur during the powder mixing process. Tianshi powder metallurgy binder effectively improves segregation. Due to the different particle sizes and uneven distribution in the powder, porosity can increase. The binder can make the particles distribute reasonably, fill the pores, and improve the strength of the compact. 3、 Forming: Forming is the process of placing a uniformly mixed material into a press mold and pressing it into a billet with a certain shape, size, and density. The commonly used methods for forming include room temperature pressure forming and heating pressure forming. Tian Shi powder metallurgy lubricant can effectively reduce internal and external friction, reduce the loss of pressing pressure, improve the density of the billet, reduce the demolding force during the demolding process, extend the service life of the mold, and provide good surface smoothness for the components.

Jul 28,2022

Traditional hardware tools

Hardware tools are indeed one of the essential tools for families and companies, and are very suitable for modern people in terms of functionality and practicality. With the development of society, hardware tools have also developed rapidly, and more and more advanced tools have been invented. More and more families are catching up with the pace of the times and using these advanced hardware tools. Are you still using traditional hardware tools? Nowadays, these high-tech technologies are popular. Do you know all of them? Let me take a look at these advanced hardware tools with you now! Let's take a look at the wrench first. The invention of the traditional universal wrench has indeed brought some convenience to electrician friends, but there are also shortcomings. Each corresponding nut needs to be manually adjusted in size, while the advanced one is different and can be automatically adjusted to the appropriate size.

Jul 28,2022

Modern Automobile will develop self-developed automotive chips

Hyundai Mobis, the parts department of Hyundai Motor Group, is in talks with South Korean fabless chip companies to develop self-developed automotive chips. In addition, Hyundai also shared some of its automotive semiconductor specifications. Analysts say this move reflects the South Korean automaker's intention to achieve controllability through cooperation with South Korean chip manufacturers, reduce dependence on foreign semiconductor supply chains, and solve supply problems more quickly. It is reported that Hyundai Motor and Hyundai Mobis have recently shared some specifications of the automotive semiconductors they are using with South Korean System Semiconductor Company. The list they provided includes 8 types of analog semiconductors, including microcontroller units (MCUs), display driver integrated circuits, and power management integrated circuits, especially MCUs. They demonstrated the design specifications of a 32-bit chip based on the 65 nanometer process. IT Home Link: Most automotive chips in the industry are imported from overseas. The main sources include Infineon from Germany, ST Microelectronics from Switzerland, NXP from the Netherlands, and Texas Instruments from the United States.

Jan 10,2022

How to prevent car lamp caps from turning yellow

The front headlights of a car are made of polycarbonate plastic, which makes them more durable, but it can also lead to potential hazards - accumulation and oxidation. When the sun shines on the headlights, the holes in the polycarbonate plastic on the surface of the headlights expand, which accelerates oxidation and yellowing inside the headlights, and also causes dirt and debris to adhere to the outer surface of the headlights. Below, we will teach you how to prevent the headlights from turning yellow and ensure their clarity. 1. Wipe off dirt, debris, debris, etc. on the surface of the front headlights with a soft cloth. 2. Clean the headlights with soap and water every three months to prevent the accumulation of dirt and prevent them from turning yellow. 3. After cleaning, wipe the headlights with a chemically synthesized polishing agent, and follow the procedure to wax and care for the headlights. 4. When not in use, park the car in the garage or in a shaded area. It will help reduce the oxidation of polycarbonate caused by ultraviolet radiation on the front headlights.

Nov 12,2022

How much does the principle of processing technology affect the machining accuracy of precision mechanical parts?

In the process of machining precision mechanical parts, in order to achieve the contour of the machined part surface, we need to use approximate forming operation or blade contour to process precision parts. In this process, errors inevitably occur, which is called machining principle error. In theory, in order to reduce surface roughness and achieve precise surface of the processed components, it is necessary to adopt ideal machining principles and precise forming movements. In the actual machining process of precision machine tools, it is difficult to achieve precise machining principles, and there may still be some gaps between them and the ideal values. If we only pursue precise theories, it often affects the efficiency of precision machining enterprises and cannot achieve the expected results. In the process of precision machining, the complex structure between the machine tool and the machining tools also increases the difficulty of machining. There are too many complex structural links, which can cause errors in the operation of the machine tool, making it difficult to ensure the accuracy of precision machining parts. Facing an important problem for precision machining enterprises, it is how to more reasonably use approximate principles to increase the machining accuracy of parts, thereby ensuring the accuracy of the machining process and ensuring the quality of the processed parts. At the same time, by adopting scientific and reasonable process measures, the productivity of precision machining parts can be effectively improved, thereby improving the economic benefits of enterprises.

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