The principle of Megmeet plasma cutting and its characteristics

(1) Select components and materials with good heat resistance and thermal stability to increase their allowable working temperature; (2) Reduce the heat generated inside the equipment (device). To this end, micropower devices, such as low-loss IGBTs, should be used more often, and the number of heat-generating components should be minimized in the circuit design.

1. Application field: The initial design goal of PLC is only to replace complex relay circuits, and DDC is originally only used in industrial automation instruments: PLC emphasizes versatility, DDC emphasizes specificity: PLC is used in the field of industrial control, and DDC is used in professional building systems. 2. Structural differences ...

The butt welding machine should be settled indoors, and should have a reliable grounding or zero connection, when a plurality of butt welding machines are connected to each other, the distance from each other shall not be less than 3m, and they should be connected to different corresponding power grids, and should have their own knife switches. Before welding, the pressure of the butt welder should be checked and determined.

1. Air switch Air switch is also called air circuit breaker, referred to as air open, is an indispensable component of the control cabinet, usually from the outside into the cabinet of power supply, must go through the air open, in order to reach the inside, the function of air open in addition to the power supply, more as short circuit protection and overload protection...

(1) The energy density is highly concentrated, the heating and cooling speed is extremely fast during welding, the heat affected zone is small, and the welding stress and deformation are very small; (2) Non-touch processing, no external force on the weldment, suitable for welding parts that are difficult to touch; (3) The laser can be transmitted through the optical incoming ...

1) Hand arc welding (STICK) Shielded Arc Welding (abbreviated SMAW) in English, The principle is: the welding method of generating an electric arc between the coating electrode and the base metal, and using the arc heat to melt the electrode and the base metal. The outer layer of the electrode is covered with solder, and it melts when heated.

1. The arc is stable in the field of full current, the spatter is small, and the same welding machine is not only suitable for small current base welding, but also suitable for high current and high deposition rate work 2. Arc concentration and strong penetration. With the same penetration depth, the heat input is reduced by more than 20% compared with other gas shielded welding machines, and the thermal deformation ...

1. Use the analog output module of the PLC to control the inverterThe analog output module of the PLC outputs a 0-5V voltage signal or a 4-20mA current signal, which is used as the analog input signal of the inverter to control the output frequency of the inverter. This control method is simple to wiring, but requires the option to ...

(1) The E end of the high-voltage inverter should be connected to the shell of the control cabinet and the motor, and should be connected to the ground, and the grounding resistance should be less than 100Ω, which can absorb surge interference. (2) The input or output of the high-voltage inverter is equipped with an inductive magnetic ring filter. Flat and 3-4 turns, helps to inhibit ...

3) Tungsten argon arc welding (TIG) Non-melting electrode gas arc welding, TIG welding, English is Tungsten Inert Gas (abbreviated TIG), also known as Gas Tungsten Arc Welding (abbreviated GTAW) The principle is: TIG welding is in argon and other inert gases.

From April 13 to 16, 2021, CHINAPLAS 2021 was grandly held at the Shenzhen World Convention and Exhibition Center (Bao'an New Hall) with the theme of "New Era· New Power, · Sustainable Innovation". As a vane of rubber and plastics professions and a barometer of shopping malls, the World Rubber and Plastics Exhibition has a 350,000 square meter ...

1. Energy saving of frequency conversion speed regulation 1) Due to the use of frequency conversion speed regulation, the energy-saving effect of fans and pump loads is the most obvious, and the power-saving rate can reach 20%-60%, this is because the power consumption of the fan pump is proportional to the cubic of the speed.

1) Shut down, so that the inverter out of the operating state; 2) Cut off the high-voltage power supply and push out the high-voltage cabinet trolley (when there is a bypass cabinet. The inverter can be isolated by the disconnecting switch of the bypass cabinet), the local or remote high-voltage disconnect switch can be locked, and the high-voltage cabinet grounding switch can be grounded; 3) Hit ...

External electromagnetic interference can easily cause malfunctions If there are interference sources around the inverter, they will invade the inside of the inverter through radiation or power lines, causing the control loop to malfunction, causing abnormal operation or shutdown, and even damage to the inverter in severe cases. Noise suppression on the outside ...

On September 24, the 2021 Zhongguancun Forum, co-sponsored by the Ministry of Science and Technology of China, the Chinese Academy of Sciences, the China Association for Science and Technology, and the Beijing Municipal People's Government, officially opened in Beijing. As one of the main agendas of the forum, the Zhongguancun International Technology Exchange Conference closely follows the "smart· healthy· carbon neutrality...

First, the process requirements When the low-pressure pressure collected by the system is greater than the upper low-pressure pressure set by the touch screen, the compression time will be loaded according to the set loading time, and the lower pressure will be reduced according to the set load reduction time. The high pressure collected is greater than that on the high pressure ...

The PLC communicates with the host computer, and BlandC is used to write the communication program between the host and the PLC, and the COM1 port must be initialized, the baud rate is 9600bps, and the parity check bit adopts even check, and the seven-digit valid data is used. When the computer receives the response character ACK from the PLC, it ...

(1) Spot welding: The weldment is pressed between the two cylindrical electrodes, heated by electricity, so that the weldment melts at the contact to form a nugget, and then the power is cut off, and it solidifies and crystallizes under pressure to form a dense solder joint. Spot welding is suitable for welding thin plates (laps) and steel bars below 4 mm.

When the oscilloscope looks at the current monitoring output of the driver, it is all noisy and cannot be read Cause: The current monitoring output is not blocked from the AC power supply (transformer). Solution: You can use a DC voltmeter to detect and investigate. Servo motor high-speed rotation ...

1) Hand arc welding (STICK) Shielded Arc Welding (abbreviated SMAW) in English, The principle is: the arc occurs between the coating electrode and the base metal, and the welding method of arc thermal ablation electrode and base metal is used. The outer layer of the electrode is covered with solder, which is dissipated in case of heat.