Recently, Xiaobian saw a picture in a battery QQ group, and the battery scale was sold.
Today, with the rapid development of science and technology and manufacturing processes, this kind of judgment is becoming more and more scientific, and this concept should obviously be corrected.
The manufacturing process of the electric vehicle battery is complicated, and the entire battery manufacturing process is crucial to the quality of the battery from the formulation, the paste, the curing, the charging, the utilization rate of the active material, etc., rather than the simple weight, the quality can be determined. The key is to look at the utilization of active materials, battery capacity, discharge time and cycle life. The active substance is a plate material which generates electric energy by a chemical reaction when the battery is discharged, and returns to the original component upon charging. Moreover, the development of the times, the process is becoming more and more exquisite, in the case of the same capacity, discharge time and cycle life, the lighter the battery performance, the higher the technical content and the more convenient. Just like now, no one will take a thinner and lighter computer to compare with the heavy desktops. Therefore, it is unscientific and unscientific to use the weight of the battery to judge the quality of the battery.
Glue for wood door thickening composite process
Composite glue - classification of composite glue
1. Oily compound glue
Oil-glue compounding, also called glue compounding, is a kind of compounding. Generally speaking, it is relative to flame compounding. It is different from flame compounding in that it is not a layer of sponge but glue between the top fabric and the base fabric. Although the cost is lower than that of flame compounding, it has a harder feel.
2, pet compound glue
A special adhesive for thermal compounding made from thermoplastic polyester resin. It has excellent adhesion to PVC, PET, etc. It is synthesized from a single formula. It can be rolled after coating and drying. The thermal compounding temperature is low. It is suitable for high-quality PET and other materials compound products.
PVC composite adhesive refers to the adhesive that attaches PVC soft sheets to wood products such as MDF and plywood. Generally, it is made of high molecular polymer and resin. PVC composite glue is generally used for the production of PVC-coated wooden doors, panel furniture, etc.
4. Aluminized film composite adhesive
Aluminized film compound adhesive refers to the adhesive compound of PET and coated paper and other paper. Generally, the non-aluminized PET surface is coated with glue and then compounded with paper.
The aluminized film composite adhesive is generally a water-based acrylate polymerized emulsion. Strong adhesion to PET is required.
5. Metal composite glue
Also known as metal composite glue, bimetal composite glue, explosion-free metal composite glue, is a polymer polymer glue. It can be used for the composite between metal and metal, metal and plastic, MDF, synthetic board, stone, ceramics, glass, etc. The typical use is stainless steel foil (plate) or copper foil (plate) and cold-rolled metal door panel production. Composite of steel plates.
6. Water-based plastic-plastic composite adhesive
Water-based plastic-plastic composite adhesive refers to the water-based adhesive used for plastic flexible packaging composite. It is suitable for compounding between plastic flexible packaging BOPP, PE, PET, aluminized film, etc.
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