These parts of an apparatus in transducer should change regularly

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Transducer is by a lot of electrons the spare parts is formed, for example semiconductor component, be being used and safeguard in the center involve change some problem of relevant component, as a result of transducer composition or the reason with characteristic physics, deterioration arises in the meeting inside certain period, what can reduce transducer consequently is characteristic, can cause trouble even. From this, safeguard for precaution, be necessary to execute change regularly. 1, change cooling fan transducer advocate cooling fan of loop semiconductor device comes loose quickly hot, assure to be in allow Wen Di to move normally below. And the life of cooling fan suffers bearing of be confined to, it is 10000~35000h about. When transducer moves continuously, fan or bearing change after needing to be in a few years. Of cooling fan change period suffer all round the impact of temperature is very big, be being checked is to discover unusual voice, when unusual vibration, cooling fan must change instantly. 2, change what loop of capacitor inter dc uses is high capacity electroanalysises capacitor, as a result of the influence of the element such as pulse electric current its function wants deterioration. Deterioration suffers all round temperature and use condition impact are very big, usually, use cycle is 5 years about, the development after the deterioration of capacitor has taken proper time is rapid, checkup week is the so longest for a year, approaching life is to be less than of half an year finally. 3, change after timer timer is using several years, behavioral time can have very big change, undertake changing after checking behavioral time so. 4, change the rated electric current of fuse fuse is big with load current, below normal use condition, life is 10 years about, need is safeguarded in the examination inside this time change even. 5, change relay / contactor relay and contactor are achieved after accumulating switch time certainly, late unripe contact is undesirable, need is checked and change from this. Next, knew a likelihood to need yuan of changing parts of an apparatus, complement simply to change here the main demand of yuan of parts of an apparatus. 1) make clear Hunan needs to change the basic parameter of parts of an apparatus and appearance circumstance. Da Lin of the resistance of the capacitance that basic parameter includes rated job electric current, capacitor, resistor, GTR pauses the numerical value of parts of an apparatus (voltaic enlarge coefficient) , IGBT (include IPM) the switch character of parts of an apparatus and saturated voltage. The appearance asks to include position of external dimension, terminal and installation form to wait, change by identical requirement next what need parts of an apparatus. 2) all receiving record or mark should be made when plug-in unit disassembles, lest change or the amlposition when restoring. 3) the interface of power parts of an apparatus and radiator wants fat of silicon of the heat conduction on even besmear, originally with snail clench. Finally, below major case, the machine is in moving condition, when the machine is not moving, undertake to transducer with respect to need appropriate keeps. 1) custodial room a person operating from within in coordination with outside forces is dry, without direct sunlight, without caustic gas, without dirt; Relative humidity is in 20%~90% and without frost; Temperature is in - between 10~30 ℃ (if temperature is controlled in 40 ℃ , custodial period do not exceed 6 months; 50 ℃ are controlled, custodial period do not exceed 3 months) . 2) in maintaining the main circuit as a result of transducer and control circuit, use more electroanalysis capacitor, if long need not, can make leakage of electricity increases, compression drops, quicken deterioration namely (temperature is higher, deterioration is sharper) , accordingly, annual at least extra power supply, make its repair weld time is 30~60min, the characteristic is to need pair of transducer monomer electrify only (need not receive electrify motivation) , the power source on the input termination transducer can. CNC Milling