图片名称

How is the plasma formed in the plasma cleaning machine

Keywords:

Published on:

14 Jan,2021

How is the plasma formed in the plasma cleaning machine:

Plasma cleaning machine can be generally divided into atmospheric (atmospheric pressure) plasma cleaning machine and vacuum (low pressure) plasma cleaning machine, equipment can be used to improve the adhesion and so on. The former discharges under normal pressure in open space or semi-closed state, while the latter requires vacuum to form low pressure to produce glow in fully closed space. No matter what form, the formation process of plasma is basically the same from the microscopic analysis.

plasma cleaning machine

When material from low energy aggregation state into a high-energy aggregation state, from the external supply of energy (such as temperature, radiation, etc.), electric field, from solid to liquid or from liquid to gas, each particle needs 0.01 eV (1 eV = 1.6022 x 10-19 joules) of energy, when the gas absorbs energy from the outside, further further thermal motion of molecules, molecular dissociation into atoms, get enough energy of the electrons in atom, from electronic and become a free electron. Gas phase ionization, gas phase ionization contains a large number of electrons, ions, as well as some neutral particles (atoms and molecules), in which the number of charges of electrons and ions is almost equal, macroscopically or on average are neutral.

Use water as an example:
At temperatures below 0℃, water will appear to be a solid state, "ice"; At a temperature of 0℃ to 100℃, water will turn into a liquid, that is, "water"; At temperatures above 100℃, water changes into a gas, or steam. Heated to tens of thousands of degrees, matter will enter a fourth state - plasma!

Atmosphere (atmospheric) plasma cleaning machine is a kind of anhydrous oil-free compressed air (CDA), and other gas formed by spraying a electrode plasma device, vacuum (low pressure) plasma cleaning machine is vacuum reaction chamber first, and then pass into the reaction gas, keep to a certain degree of vacuum in the electrode electricity, formation of high frequency high voltage electric field, inspire gas discharge device.

Hot Products

Related articles