What are the forms of connector pin jack decay?

The chemical or electrochemical reaction between metal and its surroundings, which causes some detectable changes in the metal, leading to deterioration of the properties and functions of the metal material, this process is called corrosion. Corrosion commonly from the end of the exposed metal appearance, gradually modify the geometric shape of the corroded material, without touching its chemical composition and micro-unattractive structure. Good turn from the end of the generation of the corrosion layer, from time to time to continue to, only one reactant can be dispersed through the corrosion layer and keep the corrosion continues to react to the cessation. Corrosion on the connector pin jack metal components have a latent effect, whether it is the shell or contact body. In the vast number of corrosion methods of atmospheric corrosion, localized corrosion, fissure corrosion, pitting, galvanic corrosion of these factors is relatively rare.

-I. Connector pin jack what are the forms of corrosion?1, atmospheric corrosion: metal materials and the presence of oxygen, carbon dioxide, water vapor, sulfur and chloride in the atmosphere in contact with the gradual outbreak of deterioration or corrosion, so that the composition of the material from time to time thinning can be said to be the common method of corrosion of the joint method. Corrosion have electrolytic characteristics, decelerate the deterioration of only a thin film of water, the speed of atmospheric corrosion is related to the temperature, temperature, sulfate and chloride concentration and other atmospheric pollutants. 2, localized corrosion: relative corrosion area is smaller, but the mechanism of a similar to the general corrosion, usually erupted in the appearance of the products of the original some coarse cracks, not easy to show the influence of the dominant corrosion. 3, fissure corrosion The metal appearance is partially corroded by the corrosion of the composition, mostly refers to the demand for protection between the different components and not subject to the complete exposure of the situation of the outbreak of corrosion in the region. Between the metal components or metal and non-metallic components between the narrow leisure, cracks or other shortcomings in the appearance can become the origin of fissure corrosion. 4, pitting: the metal appearance of a point or a very small area constitutes the outbreak of a localized deterioration of the pitting method. Pitting corrosion usually has an effect on the plating of very thin metal, outbreak in the thinning of the plating, so that the mechanical function of the plating of the point of the outbreak of the operation under certain conditions, and can not be self-repairing. 5, microporous corrosion: outbreak in the thin and porous plating, when containing ionized gases in the presence of the water film occurs when the primary battery effect, thus the outbreak of the corrosion method. Corrosion products through the plating on the small holes from the active lower layer or base metal across to the contact appearance, microporous corrosion is often associated with chloride and oxygen, and sulfate interactions. Connector pin jack plating denseness and thickness is the main factor affecting the speed of microporous corrosion. 6, electrochemical corrosion: metal or alloy with more chemically inert than it is a decelerated corrosion method occurring in a unified electrolyte in contact with the metal. In the bimetallic contact structure, this method of corrosion is one of the more serious deterioration, no matter when, as long as the different metals coexist in a solution containing salt ions will erupt electrochemical corrosion.

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