How much do you know about the car battery ? However, how to ensure the normal start of the vehicle or how to use the various electrical equipment in the vehicle under the condition that the vehicle is turned off or stopped? At this time, the "power" of the battery is fully reflected. Therefore, in the following article, the author will briefly introduce the battery for the vehicle, including the classification, function, maintenance and use instructions. In addition, for those who are ready to pick used cars, the inspection of the battery is a part that cannot be ignored. In the inspection, the first thing to look at is the external condition, whether there are cracks, leaks, etc.; secondly, whether the electrode poles are corroded or not; then check whether the insulation at the positive and negative electrodes is good. â– Classification and introduction of batteries: Under normal circumstances, vehicle batteries are mainly divided into two types: ordinary lead-acid type and maintenance-free type. Most of the models used today are maintenance-free batteries. So, what is a maintenance-free battery? What are the advantages of a maintenance-free battery compared to a normal battery? Here is a brief introduction. Maintenance-free battery features The maintenance-free battery adopts a lead-calcium alloy grid. Compared with the lead-bismuth alloy grid for ordinary batteries, the advantage is that the amount of water decomposition is small during the charging process of the battery, and the evaporation rate of the liquid is lowered, thereby The loss rate of the electrolyte is lowered. Therefore, compared with the conventional battery, the maintenance-free battery reduces the number of inspections and electrolyte additions during the future use of the vehicle. Iron-based alloy powder is commonly used in plasma transfer arc welding (PTAW) due to its excellent mechanical properties and high resistance to corrosion and heat. This type of powder is typically composed of iron as the base metal, along with various alloying elements such as nickel, chromium, molybdenum, and tungsten. Fe Alloy Powder,Stainless Powder,High Temperature Powder,Iron Base Pta Welding Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.lyshieldcutters.com
Under the premise that the vehicle does not have any fault and the amount of gasoline can be guaranteed, when entering the vehicle, we all know that the vehicle can be operated normally by using the car key or pressing the smart start button. In addition, electrical equipment such as audio, navigation, and lighting in the car can also be used by the people in the car. 
The specific composition of the iron-based alloy powder may vary depending on the desired properties and application requirements. For example, adding nickel can increase the strength and toughness of the weld, while chromium enhances the corrosion resistance. Molybdenum and tungsten are often added to improve the high-temperature strength and creep resistance of the weld.
Iron-based alloy powders for PTAW are available in various particle sizes, typically ranging from a few micrometers to several hundred micrometers. The powder is usually fed into the plasma arc through a powder feeder, which ensures a controlled and consistent supply of powder during the welding process.
During PTAW, the powder is melted and deposited onto the workpiece, forming a weld bead. The high energy plasma arc provides the heat necessary to melt the powder and the base metal, creating a strong and durable weld joint.
Overall, iron-based alloy powder for plasma transfer arc welding offers excellent weldability, high mechanical properties, and resistance to corrosion and heat, making it suitable for a wide range of applications in industries such as aerospace, automotive, and power generation.
(Photos) Popularization of vehicle battery knowledge