Double anode heat plasma generator
A thermal plasma and generator technology, applied in the direction of plasma, electrical components, etc., to achieve the effect of increasing voltage, increasing service life, increasing temperature and power
Inactive Publication Date: 2006-10-18
DALIAN MARITIME UNIVERSITY
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The purpose of the present invention is to overcome these shortcomings and propose to divide the single anode into two parts, insulate the middle to form a double anode, and pull the plasma arc to the rear anode, so that the gas flow rate can be doubled without increasing the gas flow rate. Increase the arc voltage to bias the energy distribution of the plasma to the outside of the channel, change the distribution of plasma temperature, enthalpy and velocity inside and outside the channel, and achieve internal powder feeding plasma spraying or preparation of spherical powder under higher input energy
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] A dual-anode plasma spray gun as shown in the figure, wherein the positive pole of DC power supply 1 is connected to the outer anode 7 and the inner anode 6 through the transfer arc switch 2 at the same time, the switch 2 is turned off when the arc is struck, and the switch 2 is turned off after ignition. The plasma arc moves to the outer anode 7 . The negative pole of the DC power supply 1 is connected to the cathode 5, the gap between the cathode 5 and the gun body 8 is the channel 4 of the working gas, and the high temperature resistant insulating ceramic ring 3 divides the anode into two, and the anode is connected by a transfer arc switch.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
This invention discloses a double-anode thermal plasma generator including a gun a cathode and an anode chacterizing that a rod shaped cathode with a conical head is set in the gun, two tube anode spray nozzles are axially set in front of the cathode, namely an internal anode and an external anade isolated and connected by a high temperature ceramic ring. Positive of a DC supply is linked on the external anode, the negatine is connected on the cathode the two anodes are connected by a transfer are switch.
Description
technical field [0001] The invention relates to a plasma spray gun, which belongs to spraying equipment for spraying metal, metal oxide or metal carbide. Background technique [0002] Plasma spraying is the use of electric energy to convert gases such as argon, hydrogen or nitrogen into high-temperature plasma and form a plasma jet in the anode nozzle, and use its high temperature and high speed to spray metal or metal oxide or metal carbide onto the workpiece The surface, the process method of forming metal or its oxide, carbide coating. The temperature and velocity profiles of the plasma jet strongly affect the porosity and hardness of the coating. The distribution of temperature and velocity depends on the structural characteristics of the plasma generator, so improving the structure of the plasma generator and making it more rational has become a common concern in this field. Commonly used plasma generators mostly use a pair of electrodes, that is, a cathode and an ano...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/34H05H1/42
Inventor 高阳
Owner DALIAN MARITIME UNIVERSITY