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introduction：http://www.hljjsj.cn Hard gear reducer use and maintenance precautions：1、Press before starting to check whether the oil level in the reducer meets the requirements。Open or change the ventilation cap as prompted to allow smooth ventilation，And check whether the rotation is flexible。 2、Before the load test, it should run for about half an hour without load，After confirming that no load is faulty, the force can be loaded and run。Test runs should be checked frequently：No abnormal shocks，Vibration，impermeable、Oil leakage。The temperature rise shall not exceed60℃，The maximum oil temperature shall not exceed100℃(Daily work should also be checked)All is well for a regular job
2015-01-26 Reading quantity 2886
introduction： Modification of the surface of the workpiece using flexible polishing tools and abrasive particles or other polishing media(See machining)。Polishing can not improve the dimensional accuracy or geometric shape accuracy of the workpiece﹐Instead, the goal is to get a smooth surface or mirror-like finish﹐Sometimes used to remove gloss(extinction)。Usually a polishing wheel is used as a polishing tool。Polishing wheels generally use multiple layers of canvas﹑Made of laminated felt or leather﹐Both sides are clamped with round metal plates﹐The rim of the wheel is coated with a polishing agent composed of a uniform mixture of micro-powder abrasive and grease。Polishing time﹐High speed rotating polishing wheel(Circular velocity20meter/Seconds or more)Pressed work﹐Make the abrasives right
2015-01-26 Reading quantity 2808
introduction： bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]External dimension refers to the inner diameter of the bearing、Outer diameter dimension、Width dimensions and chamfer。The dimensional accuracy is based on the bearing accuracy grade、Bearing types and their dimensions vary。Taking the deep groove ball bearings produced by our company as an example, the following is introduced。
2015-01-26 Reading quantity 1466
introduction： Petroleum and petrochemical industry：The oil production system optimization configuration technology is applied in oil and gas exploitation，Energy saving technology for heavy oil thermal recovery．Optimal operation technology of water injection system，Oil and gas closed gathering and transportation comprehensive energy saving technology，Blow-out gas recycling technology。Petroleum refining improves the operating load and heat transfer efficiency of the unit。Ethylene production adopts advanced technology to transform ethylene cracking furnace．Optimize quench system operation，Strengthen plant management，Reduce energy consumption in non-production processes。Clean coal、Alternative fuel oil such as natural gas(Light oil)，Promote the application of circulating fluidized bed boiler technology and petroleum coke gasification combustion technology，Using energy system optimization、Heavy oil emulsification、Burner and suction
2015-01-26 Reading quantity 2799
introduction： According to its maintenance methods, it can be generally divided into two categories: macro defects and micro defects。Strictly control these technical indicators and reduce them as much as possible，It is all kinds of bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The main content of steel technical requirements。These are common defects in general steel。 1.Microscopic defect：Microscopic defect package of steel
2015-01-26 Reading quantity 1534
introduction：［Abstract］：The wide application of high voltage inverter conforms to the current social development needs of energy conservation and emission reduction，However, it is particularly important for power plants to improve the safety and reliability of inverter use。therefore，It is necessary to strengthen the daily maintenance of the inverter and the judgment and treatment of the cause of the failure，In this paper, the instantaneous overcurrent protection problem of vector control frequency converter is analyzed and studied，And find out how to solve the problem。 ［keyword］：High voltage inverter vector control overcurrent protection surge Our company is in6kV1400kWFrequency conversion control is used on the primary fan，One of them runs one
2015-01-26 Reading quantity 2890
introduction：This regulation applies to the model specification Machine type Exciting force（Tons of） Grid area specification Machine type Exciting force（Tons of） Grid area 227716 5 2000×1500 200 7 2400×1270 DZ201 5 300 7 1170×1330 3T1 5 1700×900 QT7012 5 3500×925 4T1 5 51606A 2.5 1200×1200 7210 5 2250×1000
2015-01-26 Reading quantity 2787
introduction：For the auto industry，Virtual reality is one of the latest technology development methods，It is a complex simulation tool，It aims to create an artificial environment，People can be in this environment in a kind of“nature”The way to engage in driving、Real-time activities such as operation and design。And virtual reality technology can also be widely used in car design、Testing and training。 1、generality Virtual reality technology，It is an advanced computer technology developed in recent years，Is built on computer graphics、simulation、Parallel technique、Artificial intelligence、Multimedia technology and high performance computer systems
2015-01-26 Reading quantity 2876
introduction：Applicable model：KRR-80 one、 Conscientiously implement《General operating rules for forging equipment》Relevant provisions。 two、Carefully implement the following supplementary provisions： （one） Check the work surface of the roll before working，Use a stone if you find a scratch（Or wheel block）You can only work by grinding away the scars。When badly scratched or flaked，To find the competent authorities to rule out。If the abrasive particles fall into the oil tank, the oil must be cleaned and changed。 （two） Conscientious at work： 1、Take care to feed in sequence，When material accumulates at the entrance of calender，The safety signal device should be used to stop the rough calibration machine。To be disposed of accumulated material
2015-01-26 Reading quantity 2800
introduction： Operating wavelength is200～800Nanometer absorption optical analytical instrument。Ultraviolet and visible light spectrophotometers are very versatile﹐It can be used for inorganic matter analysis﹐It can also be used for organics analysis﹐Medicine in process﹑metal﹑It is a very important analytical tool in the analysis and inspection of minerals and pollutants in water。The absorption of light by matter is a form of interaction between matter and radiant energy。The energy of the photon emitted into the matter is absorbed when the energy difference between the ground state and the excited state of the matter is equal。Due to the molecules of light-absorbing substances(Or ion)Only a limited number
2015-01-26 Reading quantity 2870
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