There are many grades of PVC. The viscosity or K value commonly used in the industry indicates the average molecular weight (or average degree of polymerization) of PVC, that is, the length of the PVC molecular chain, which determines the grade of the resin and the corresponding processing parameters. The molecular weight of the resin is related to the physical and mechanical properties of the product.
PVC used to be the largest general-purpose plastic in the world, and it is widely used. It is widely used in construction materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foam materials, sealing materials, fibers, etc
SG3 (K-70, S1300): mostly used for soft products, hoses, wires and cables, films, shoe materials, toys, auto parts etc.
PVC RESIN SG3 has high purity, less fish eyes, easy to blister, high temperature resistance, insulation, soft product texture, etc. It is mainly used to produce soft products such as wires and cables, agricultural films, conveyor belts, and daily plastic products.
PVC RESIN SG3,Pvc Resin Sg3 Sg5 Sg8,Pvc Resin K70,Pvc Resin Powder Sg3,Suspension Pvc Resin Sg3 Henan Shunbang Chemical Industry CO.,Ltd , https://www.spvcresin.com
Tianjin Electric Power Research Institute relies on the 2016 Tianjin Electric Power Science and Technology project “Research on inspection and detection technology of AC/DC power metering units for electric vehicle charging facilities†to develop DC watt-hour meter verification equipment, non-vehicle DC charger energy meter detection software, and electric Vehicle charging pile site tester.
DC watt-hour meter is the core instrument for DC energy measurement in the charging station of electric vehicles. In this research and development project, DC watt-hour meter verification device is used together with detection software to directly test and distribute direct-input DC energy meter in the laboratory environment. And indirect access dc power meters for overall testing. The electric vehicle charging pile field tester has an AC power accuracy level of 0.05 to meet the on-site test requirements of the AC charging pile.
(Original title: Tianjin Electric Power Co., Ltd. overcomes key technologies for measuring metering devices for electric vehicle charging facilities)
PVC Resin is a kind of non-crystalline linear polymer compound. The larger the relative molecular mass, the higher the viscosity, the higher the molecular weight, and the higher the tensile strength, impact strength, and elastic modulus of the product, but the flow of the resin melt Decline in sex and plasticity. The viscosity number is usually used to indicate the molecular weight of the polymer, and the polymer model is divided
Car charging pile DC energy metering device passes test
[China Instrument Network Instrument R&D] On February 24th, the technicians of the State Grid Tianjin Electric Power Institute completed the first laboratory test and AC energy measurement of DC electric energy metering devices for electric vehicle charging piles at the Electric Measurement Laboratory and the Haitai Comprehensive Charging Station. The on-site test of the device indicates that the State Grid Tianjin Electric Power Company has overcome the key technology for the detection of metering devices for electric vehicle charging facilities and has the ability to measure and measure electric vehicle charging facilities.