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introduction：Drag chain in the equipment unit needs to move back and forth，To prevent entanglement、wear、Pull out、Hang and scatter，Cables are often placed in tow chains，Provides protection for cables，And the cable can also be moved back and forth with the tow chain，This kind of high flexibility special cable that can move back and forth with the tow chain and is not easy to wear is called the tow chain cable，It is also commonly referred to as a trailing cable，Tank chain cable。
2017-11-14 Reading quantity 327
introduction：From the performance range of the electric pressure test pump，The flow rate of the giant electric pressure test pump can reach hundreds of thousands of cubic meters per hour，The flow rate of the miniature electric pressure test pump is below tens of milliliters per hour。Pump pressure can be from normal pressure to up to19.61MPa（200kgf/cm2）above，The temperature of the liquid to be transported is as low as-200℃below，High accessibility800℃above。Pumps carry a wide variety of liquids，Such as transporting water（shimizu、sewage）、oil、Acid lye、suspension、And liquid metal, etc。
2017-11-14 Reading quantity 306
introduction：Classification of lubricating oils for machinery：The first is our common gasoline oil and diesel engine oil。Gasoline engine oil is mainly used in a variety of gasoline engines、Gasoline car；Diesel engine oil is mainly used in diesel locomotives、Diesel car、Tractors and so on。The main function of this type of lubricating oil is generally lubrication and cooling。
2017-11-13 Reading quantity 324
introduction：First you need to open the roll of the tape cutter，Place the whole roll of tape into the tape cutter，Secure the tape roll with a fixed core。Then pull out the front end of the whole roll，Let the tape pass from the bottom through the gap between the front axle of the tape cutter and the bottom，Note that in order for the tape to slide smoothly，Make sure the sticky side of the tape is facing down。
2017-11-13 Reading quantity 706
introduction：Circuit breakers can be used to distribute electrical energy，Start the asynchronous motor infrequently，Protect power lines and motors，When they occur serious overload or short-circuit and undervoltage faults such as circuit breakers can automatically cut off the circuit，Its function is equivalent to the combination of fuse type switch and underheat relay，And it is generally not necessary to change the zero part after breaking the fault current。
2017-11-13 Reading quantity 265
introduction：Safety relay schematic diagram Safety relay，As the name implies，The main function is to ensure safety。In our daily work，Such relays are commonly found in electrical equipment control systems，Especially in foreign imported equipment is common。Especially in the event of sudden equipment failure，Before the fault is rectified or confirmed，The equipment is not functioning properly。In order to prevent the sudden operation of the equipment after failure to bring danger to the human body or equipment。The following is a small edition of Feng Ye to take you to see the safety relay schematic！
2017-11-13 Reading quantity 154
introduction：Definition of programmable controller Early programmable controllers were called programmable logic controllers(Programmable Logic Controller)，For shortPLC，It is mainly used to replace the relay to achieve logic control。With the development of technology，The function of this device has greatly exceeded the scope of logical control，therefore，Today such devices are called programmable controllers，For shortPC。But to avoid it with a personal computer(Personal Computer)Short for confusion，So the programmable controller for shortPLC
2017-11-11 Reading quantity 214
introduction：Double-open double-control switch is now a more common form of household switch。 Double-on means there are two independent switches，Two lights can be controlled separately。Its on or off on the same switch。
2017-11-10 Reading quantity 359
introduction：DW-J01-4/4 It is a medium power wireless switching transmission wireless module，It is embedded with high speed single chip computer，And adopt new high performance Radio frequency chip，Transmitting power500mw，Visual environment communication distance can be reached2700M above。
2017-11-10 Reading quantity 330
introduction：The temperature limit of the transformer is determined by the grade of its insulation material。Grade of insulation material（Insulation class）Refers to the heat resistance grade of the insulating material used，pointsA、E、B、F、Hlevel。
2017-11-10 Reading quantity 375
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