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Working principle of energy storage spot welder [CD03]
Dec 19,2023
The working principle of energy storage spot welder is relatively simple, and the working process includes three processes: energy storage, discharge and welding.
First, energy storage. A capacitor is charged through a charging circuit and stores a large amount of electrical energy.
The energy storage process is the first step of the energy storage spot welding. When the energy storage spot welder is connected to the power supply, the electrical energy is input from the power supply into the energy storage capacitor. Energy storage capacitor is the core component of energy storage spot welding machine, it can quickly store a large amount of electrical energy and release it when needed. Energy storage capacitors are usually composed of multiple capacitors to increase the storage capacity. In the process of energy storage, the electric energy is charged through the charging circuit, which makes the voltage of the energy storage capacitor rise gradually until it reaches the set energy storage voltage.
Then, discharge. The discharge circuit releases the electrical energy stored in the capacitor to the welding electrode, which instantly heats the welding part and causes it to melt.
The discharge process is the second step of the energy storage spot welder. When welding is required, the electrical energy in the capacitor needs to be released quickly. By controlling the discharge switch, the electrical energy in the energy storage capacitor is discharged instantaneously, resulting in high current. Discharge switch plays a key role in the process of discharge. It can make the capacitor release energy quickly, and direct the current to the welding electrode. The control of discharge time is very important. Either too long or too short discharge time will affect the welding quality.
Finally, welding. The electrode contacts the workpiece, pressing the molten metal together to form a solder joint.
The welding process is the last step of the stored energy spot welder. During the discharge, the current is directed through the welding electrode to the metal material to be welded. When a high current passes through a metal, the resistance generates a lot of heat, causing the metal to partially melt. When the current stops, the metal rapidly cools and solidifies, completing the welding process.
The design and selection of welding electrode have an important effect on welding quality. The electrical conductivity and heat conductivity of welding material should be taken into account.
The whole welding process of energy storage welding machine is very fast. Usually it takes only a few milliseconds to a dozen milliseconds of time.
The key of energy storage spot welding machine is the storage and release of electric energy of the capacitor. The selection of high-quality and stable capacitors is the key to keep the energy storage spot welder working efficiently. HAIFEI company adopts imported custom-made super capacitor, which has large capacity, high charging speed, and can be repeatedly charged and discharged up to ten million times with long service life.
The energy storage spot welder has the advantages of high welding speed, high welding quality and even and stable welding points. It is widely used in automobile, electronic, household appliance kitchenware, hardware, metal utensils and other industrial manufacture.
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Wuxi HAIFEI Intelligent Equipment Co., Ltd.
Wuxi HAIFEI Welding Equipment Co., Ltd.
Add: 28 Shuiyun Road, Yuecheng, Jiangyin, Jiangsu Province, China. (Postal Code: 214404)
Mobile: +86 18915302352
Email: wushijie@jshaifei.com