Method and device for determining plasma arc flame diameter
A plasma arc and plasma technology, which is applied in the field of ion rotating electrode powder making, can solve the problems of affecting the powder quality and unable to control the power density of the plasma arc.
Active Publication Date: 2020-04-17
西安赛隆增材技术股份有限公司
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Problems solved by technology
[0006] The embodiment of the present invention provides a method and device for determining the diameter of the plasma arc flame, which is used to solve the problem of affecting the quality of the powder due to the inability to control the power density of the plasma arc in the existing plasma rotating electrode powder making process
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[0046]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0047] figure 1 Schematic diagram of the structure of the plasma milling equipment provided for the prior art, such as figure 1 As shown, the plasma milling equipment includes a spray chamber, a plasma gun and a metal rod. The plasma arc flame is between the plasma gun and the metal bar. According to the content of the background technology, it can be determined that when the distance between the plasma gun and the melting end face of the metal bar is relative...
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The invention discloses a method and device for determining plasma arc flame diameter, relates to the field of powder making, and aims to solve the problem that the powder quality is affected due to the fact that the plasma arc power density cannot be controlled in a powder making process. The method comprises the following steps: dividing the main arc current of a plasma power supply into a plurality of equal parts according to a set numerical value, when the main arc current of the plasma power supply is progressively increased according to the numerical value corresponding to each equal part, shooting a plasma arc flame diameter image through an image acquisition system, making each shot original image correspond to each plasma arc flame diameter, in initiation of powdering, shooting the plasma arc flame diameter, respectively comparing and identifying a plurality of the shot detection images with a plurality of the original images, and if it is determined that the flame form of atleast one detection image is same as that of at least one original image, determining the plasma arc flame length of the original image matched with the first detection image as the plasma arc flame length of the first detection image.
Description
technical field [0001] The invention relates to the technical field of plasma rotating electrode powder making, and more specifically relates to a method and a device for determining the diameter of a plasma arc flame. Background technique [0002] The working principle of the plasma rotating electrode powder making equipment is to generate large heat instantly through the high-energy plasma beam, and melt the end surface of the high-speed rotating metal bar, so that the molten metal droplets fly out at high speed under the action of centrifugal force, so as to achieve the preparation of spherical purpose of the powder. [0003] Regardless of whether it is a transferred arc or a non-transferred arc powder making equipment, the particle size and quality of the powder produced are closely related to the power density of the plasma arc, and the so-called plasma arc power density is the voltage U and current at both ends of the plasma arc. The product of I divided by the cross-...
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Login to View More IPC IPC(8): B22F9/14
CPCB22F9/14
Inventor 王冬冬陈斌科朱纪磊贺卫卫孙念光康鑫朱璐
Owner 西安赛隆增材技术股份有限公司