First, what is asynchronous servo? ?? ??? A: injection molding machine is the use of vector asynchronous servo direct drive induction motor drive, and a device having a feedback function. Features asynchronous servo technology is fast dynamic response, cost-effective, easy to install, failure does not affect the injection molding machine production and maintenance costs low. Second, the advantages and disadvantages of asynchronous servo: ???? barley asynchronous servo integrates synchronous servo frequency energy and energy-saving technology to their strengths together to overcome their own shortcomings, the injection molding machine industry subversive revolution? of technology. Its main advantages are as follows:? ?? 1, can enhance the productivity of injection molding machines. ?? 2, the saving rate. ??? 3, easy to install ??? 4, asynchronous servo saver fails, does not affect the injection molding machine to produce. ??? 5, post-maintenance and low cost. ?? The disadvantage is that in the promotion phase, fame is not big enough. ? Third, the saving rate is how to calculate A: ?? saving rate per hour of electricity (not installed Saver) per unit time consumption - energy-saving (installation ?? Saver) electricity consumption per unit of time] ÷ City electricity consumption per unit time per unit of product × 100% ?? saving rate = mains (not installed Saver) per unit of electricity consumption -?? energy-saving (energy-saving retrofit [?? unit) per unit of electricity consumption ] ÷ electricity consumption per unit of product × 100% ??? saving rate per unit of product using more accurate. ?? Fourth, asynchronous servo-saving energy conservation can be achieved ??? A: The higher saving rate depends mold process parameters, velocity values ??mold process parameters (0 to 99?) And energy relationship between the maximum speed value is smaller saving rate. ? ?? If the mold between the speed value is generally 0 to 30, the saving rate can reach 70%; if the plastic injection mold and melt rate value is generally 90% or more ??, and no net cooling time (melt completion of a model), and shot rubber and melt a long time, saving? rate is only about 25% can be achieved. ~ ~ ~ ~ ~ Five, after the energy transformation will affect the production efficiency and product quality production equipment? ?? A: does not affect the productivity of production equipment, it will not affect product quality. ?? Reasons:? Asynchronous servo power amplifier, it is possible to improve the productivity of the injection molding machine. Asynchronous servo regulating flow more smoothly, does not affect product quality. ?? ?? Six, equipment service life saving device used in the project A: 5 years will not overhaul; theoretical life of the fan is 3 years; the theoretical life of the filter capacitor is three years, the board capacitance theoretical life is?? ? 7 years; in the case of full maintenance, the whole life can reach more than 10 years. ?? Seven, installation time is how much? Installation will affect the normal operation of the production? ? ?? A: The single motor injection molding machine installation time is about 2 hours; when you need to install the injection molding machine downtime. ?? Eight, how to provide ongoing maintenance? ?? A: The 18-month warranty period, the warranty period only charge labor costs, travel expenses and the cost of materials. If the lease is a lease ?? business, extended warranty service terminated. ??? Nine, energy and power sector projects if there is a conflict of interest? ? ?? Answer: no. Electricity is a scarce resource, very supportive of saving the electricity sector, such as the establishment of China Southern Power Grid ?? energy services company, specialize in EMC (share electricity mode) business. ??? Ten, asynchronous servo saver fails, it will affect the normal production? ? ?? Answer: no. Because asynchronous servo saver power-saving and non-energy-saving switch, when it fails, ?? the switching to a non-power-saving state, the injection molding machine can continue production. And compared to synchronous servo, which is one of the main advantages of asynchronous servo ??. ?? XI, asynchronous servo-saving technology is working at the time of the injection molding machine, which step of the production cycle to work? Production cycle, such as health ?? no cooling process, has energy-saving space? ? ?? A: In every action has a space saving, space saving depends on the velocity values ??mold process parameters ?? speed value is smaller, the higher the saving rate, the greater the speed value, the lower the saving rate. Focus melt and injection speed ??? value and time, because melt and shot rubber is the largest part of consumption. ???? No net cooling time (melt finish on a model), the same space-saving. ??? Twelve, asynchronous servo application range of energy-saving technology? ?? A: asynchronous servo-saving technology is mainly used for injection molding machines, die casting machine, shoe machine, aluminum extrusion machines, punch ?? bed hydraulic machines, air compressors and other motor requires precise control of other energy-saving projects. ??