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Terminals and solutions to the common failures

Categories: NewsStars: 3StarsVisit: -Release time: 2011-05-07 10:24:00
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Terminals the common failures have contact undesirable, insulation malnutrition and fixed and poor main reason, terminal plastic insulation materials and conductive parts directly related to the quality, they are respectively, terminals, terminal blocks insulation determines and conductive properties, the material is produced failure reason. Any terminals failure will cause the whole system engineering failure. Terminals from the use of point, should reach function is: contacting part where the conduction conduction, contact must be reliable. Insulation parts conduction place should must be insulated and reliable. Terminals common deadly fault form the common faults have terminals have contact undesirable, insulation malnutrition and fixed and poor main reason, terminal plastic insulation materials and conductive parts directly related to the quality, they are respectively, terminals, terminal blocks insulation determines and conductive properties, the material is produced failure reason. Any terminals failure will cause the whole system engineering failure. Terminals from the use of point, should reach function is: contacting part where the conduction conduction, contact must be reliable. Insulation parts conduction place should must be insulated and reliable. Terminals common deadly fault form:


1. Contact undesirable


Terminals internal metal conductor is the core parts, its terminals will come from external electric wires or


Connector


The corresponding touch. So touch must have excellent structure, stable and reliable contact retention and good conductivity. Due to touch the unreasonable structural design, material selection, mould unstable, error processing size outoftolerance, surface roughness, heat treatment, electroplating and other surface treatment is not reasonable, assembly undeserved, storage use environments, and operating use undeserved, can be in touch with parts of the contact position and caused contact undesirable.


2. Insulation bad


Insulators role is to make touch keep the correct position arrangement, and make touch with touch, touch and shell between mutual insulation. So insulated parts must possess excellent electrical properties, mechanical properties and process molding performance. Especially with high density, miniaturization terminals the extensive use of the effective thickness, insulators becoming thinner. The insulation materials, injection mould precision and moulding technology proposes more demanding requirements. Due to the existing surface or internal insulators, surface YuWu metal many dust, moisture and flux pollution such as separation material of organic materials and harmful gas adsorption membrane and surface water film fusion formation ion sex conductive path, moisture absorption, long mildew, insulation aging and other reasons, will cause a short circuit and leakage, low breakdown, insulation insulation unhealthy phenomenon.


3. Fixed bad


Insulators are usually plays insulation effect for outstretched touch to provide accurate and protection, but also has a installation location, lock fixed on equipment function. Fixed bad, light person affect contact reliable cause instantaneous without electricity, and, in severe is the product disintegration. Refers to the disintegration of the terminals, because under close state plug, design, process etc material cause caused structural unreliable, insert plug and receptacle needle between the abnormal separation between socket, will cause control system in power transmission and signal control interrupted the serious consequences. Due to design unreliable, select material errors, molding process, heat treatment, tooling improper selection, assembling, welding process quality is poor, assembly does not reach the designated position, etc, will be causes fixed bad.


In addition, because coating peeling, corrosion, bruising, molded case flash, rupture, contact pieces processing coarse, deformation caused by bad appearance of such a tight fit, because orientation lock size outoftolerance, processing quality consistency is poor, always separate force causes too bad, but also the swap cariology, endodontology and frequently-occurring diseases. These kinds of fault can usually in inspection and use process promptly found out.