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introduction：The packaging plays a role in protecting the product，Protect products during circulation，Make the product easy to transport，And promote sales，Packaging machinery according to a certain technical method of the container used、Materials and AIDS。There are many kinds of packaging machinery，Its not as simple as we think，A seemingly simple package is also divided into three stages，So packaging machinery is divided into：Pre-packaging machinery、Packaging machinery and packaging machinery three categories
2017-01-16 Reading quantity 240
introduction：N type electromagnetic relay。 Depending on the contact form，Can be divided into normally open contact electromagnetic relay、Normally closed contact electromagnetic relay and switch contact electromagnetic relay。Depending on the number of contacts，Can be divided into Single-group contact electromagnetic relay and multi-group contact electromagnetic relay two types。Multiple sets of contacts Electromagnetic relays can include multiple sets of contacts of the same form，Multiple sets of contacts of different forms can also be included，They can act simultaneously。 1．Classification by principle of action，Can be divided into electromagnetic relay and induction relay An electromagnetic relay is an air gap in the magnetic circuit through the current in the relay coil(Between the core and the armature)The electromagnetic force is generated，Suction armature，Drives the contact action。This type of relay has the largest number。 Induction relays use an alternating magnetic field generated by a current passing through
2017-01-13 Reading quantity 287
introduction：Mainly talk about the definition of Suzhou precision machining，And some precision machining needs to pay attention to things。
2017-01-12 Reading quantity 205
introduction：expansive：Pull-in voltage，Release voltage，Regression coefficient，Coil resistance。 Special kind，specific：As time，temperature，speed，power，direction，overcurrent，overvoltage，undercurrent，undervoltage，Inverse time and so on。 For special，Dedicated technical parameters are more。 The role of the thermal relay is：Mainly used for...
2017-01-12 Reading quantity 420
introduction：A relay is an electrical control device，Is when the input quantity（Excitation quantity）When the changes meet the specified requirements，An appliance that causes a predetermined step change in a controlled quantity in an electrical output circuit。It has a control system（Also known as input loop）And the controlled system（Also known as output loop）The interaction between。It is usually used in automatic control circuits，It actually uses a small current to control the operation of a large current“Automatic switch”。Therefore, it plays an automatic regulation in the circuit、Security protection、Conversion circuit, etc。 Main role： A relay is an automatic switching element with isolation function，Widely used in remote control、telemetry、communication、Automatic control、Mechatronics and power electronic equipment，It is one of the most important control elements。
2017-01-11 Reading quantity 183
introduction：Latest woodworking machinery
2017-01-05 Reading quantity 153
introduction：Foshan woodworking machinery factory
2017-01-05 Reading quantity 188
introduction：Mudanjiang woodworking machinery factory
2017-01-05 Reading quantity 255
introduction：Shandong woodworking machinery
2017-01-05 Reading quantity 195
introduction：Help for chain drive design
2016-12-30 Reading quantity 235
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