Lithium batteries are classified into lithium batteries and lithium ion batteries. At present, mobile phones and notebook computers use lithium-ion batteries, which are commonly referred to as lithium batteries. Currently, lithium-ion batteries used in mobile phones and the like, and true lithium batteries are not used in everyday electronic products because of their high risk. Lithium-ion batteries have high energy density and high average output voltage. Self-discharge is small, less than 10% per month. There is no memory effect. The operating temperature range is -20 ° C ~ 60 ° C wide. Excellent cycle performance, fast charge and discharge, charging efficiency up to 100%, and high output power. long lasting. Without environmental pollution, it is called a green battery. With the correct charging method, the lithium-ion battery can be fully charged. If the charging method is not correct, the lithium-ion battery is insufficiently charged , and the lithium-ion battery has a reduced capacity, shortened life, and overcharge. Lithium ion battery charging method Method 1. Before the lithium-ion battery is shipped from the factory, the manufacturer has activated the process and pre-charged it. Therefore, the lithium-ion battery has surplus power, and the lithium-ion battery is charged according to the adjustment period. This adjustment period needs to be performed 3~5 times completely. Discharge. Method 2: Before charging, the lithium ion battery does not need to be specially discharged, and improper discharge may damage the battery. When charging, try to charge slowly, reduce the fast charging mode; do not exceed 24 hours. After three to five full charge and discharge cycles, the internal chemicals will be “activated†to achieve the best results. Method 3, please use the charger of the original or reputable brand. Lithium battery should use the special charger for lithium battery, and follow the instructions, otherwise it will damage the battery and even cause danger. Method 4, the newly purchased battery is lithium ion, then the first 3 to 5 times of charging is generally called the adjustment period, and should be charged for more than 14 hours to ensure full activation of lithium ion activity. Lithium-ion batteries have no memory effect, but they are highly sturdy and should be fully activated to ensure optimal performance in future use. Method 5: Lithium-ion batteries must use a dedicated charger, otherwise it may not reach saturation, affecting its performance. After charging, avoid placing it on the charger for more than 12 hours. When not in use for a long time, separate the battery from the mobile electronic product. Lithium-ion battery charging time For laptop battery , mobile phone battery , camera, MP3\MP4\PSP lithium battery: 1. Whether it is a new battery or not, you can pull it out and use it. Generally, it will be full for 2-4 hours, and it will not be charged for 8 hours to 12 hours. 2. When there is a low battery power prompt, you should start charging as soon as possible; 3. The activation of the lithium battery does not require a special method and is activated before the battery leaves the factory. If you insist on using the "first three 12-hour long charge activation" method, it will not actually work. China Battery Network Xiaobian hereby reminds consumers that regarding the charging of lithium batteries of different products, it is necessary to strictly follow the product manual. A press brake is a piece of manufacturing equipment that is used to bend sheet metal. A press brake is typically narrow and long so that large pieces of sheet metal can be bent by it. A press brake bends sheet metal by lowering a punch onto sheet metal that has been positioned on top of a die. The metal may be bent several times by a press brake until the desired form has been achieved. Press Brake,Cnc Press Brake,Metal Bending Machine,Hydraulic Press Brake Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hostoncncs.com
Press brakes can make a variety of different bends on many different types of metals. When setting up a bending process, it is important to consider the metal type being bent, the die, the punch, and the bending force.
The metal type is important to understand because of the differing physical properties among metals. For instance, a high carbon steel will generally be less bendable by a press brake than many aluminum alloys because of the differences in ductility and strength. Metals typically have a recommended minimum bend radius that the material can be bent to without damaging it.
The die and the punch used on the press brake both have a large impact on the bending process. The die is hollow material that the metal is placed on top of prior to bending. It is a very hard and strong material that is near in shape to the desired shape of the metal being bent. The punch is a solid material that is lowered down onto the metal. Since the pressing action of the punch onto the metal and the die are what causes the metal to bend, both shapes must be accurately suited to the bending job. The correct metal shape following a press brake operation is dependent on the size and shape of the punches and dies. The dies and the punches are typically designed in such a way that they can be interchanged easily to accommodate a wide array of jobs.