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introduction：acrylic acrylic casein casein cellulose acetate Cellulose acetateCA cellulose acetate butyrate Cellulose acetate butyrateCAB composite material Composite material cresol resin Cresol resinCF dially phthalate Diallyl phthalate disperse reinforcement Dispersion reinforced composite engi
2015-01-24 Reading quantity 2913
introduction： A device for supplying lubricating oil to a friction surface in an internal combustion engine。To prevent the internal combustion engine moving parts in a dry friction state，The surfaces of friction parts need to be separated by oil film，To reduce friction and wear between parts。Work is done in order to overcome the resistance of lubricating oil between parts during the movement of parts，This work is converted into heat，This increases the oil film temperature。This requires the constant supply of the right amount of lubricating oil at the right temperature to the friction surface，To take away the heat absorbed by the parts and play a cooling role，Keep the parts temperature from getting too high。In addition，Lubricating oil can also wash away mechanical impurities on the friction surface
2015-01-24 Reading quantity 2913
introduction：biaomian pilao mosun Surface fatigue wear surface fatigue wear Due to cyclic contact stress，A wear in which cracks form and spread inside the working surface or surface of the friction pair, causing the surface material to peel off。Contact sports include rolling、Slide or scroll plus slide 3Such situation。Surface fatigue wear often occurs in rolling 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 are on the shaft
2015-01-24 Reading quantity 2807
introduction：Maximum die casting（Aluminium alloy）weight：1.8kilogram Number of cycles：70-120time/when 1、Abide by《General operating rules for casting equipment》Relevant provisions。 2、Check the amount of working fluid，If necessary, add the emulsion prepared according to the instructions。 3、Generally, air pressure is not allowed，If air injection is necessary，Be sure to put soft bedding in the injection chamber（twine、lead），Prevent damage to equipment。 4、Start the device in the following order，And try other moves： a、Power on，Open the storage cylinder，Depress the automatic adjusting lever，Starting high pressure pump，When the pump is running properly
2015-01-24 Reading quantity 2811
introduction：Metal cutting machine tools can be divided into various types according to different classification methods。 According to the processing method or processing object can be divided into lathes、Drilling machine、Boring machine、Grinding machine、Gear machine、Thread machine、Spline machining machine、Milling machine、planer、Slotting machine、Broaching machine、Special machining machine、Sawing machine and cutting machine, etc。Each class is divided into several groups according to its structure or processing objects，Each group is divided into several types。 According to the size of the workpiece and the weight of the machine can be divided into instrument machine、Medium and small machine tool、Large machine tool、Heavy machine tools and super heavy machine tools；According to the processing accuracy can be divided into ordinary precision machine tools、Precision machine tools and high precision
2015-01-24 Reading quantity 2810
introduction： 1.Raceway surface metal spalling 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。]In and out、The outer raceway surfaces are subjected to periodic pulsating loads，The resulting contact stress varies periodically。When the number of stress cycles reaches a certain value，In or within the body、Outer ring raceway
2015-01-24 Reading quantity 1567
introduction： Materials σb Reduction of sectionε（） 10 20 35 50 67 80 90 steel（0.13C） （Mass fraction） 400 2100 2000 1870 2030
2015-01-24 Reading quantity 2808
introduction：Typographic text and numerals mainly include the date of production、validity、Lot number、Bar codes and logo patterns。Security marks and Chinese characters, etc，It is a powerful equipment to implement the health law and promote the modernization of packaging。 This technology is widely used in many industries，Multimaterial surface，Operating speed，stabilize，Suitable for various workshops，Packaging marking for production line conditions。Application materials include paper、PVC、glass、plastic、rubber、Timber、ceramic、Leather、Fabrics and other materials。Application objects currently fall into two categories，One is the packaging of the product，Mainly distributed in food、beverage、tobacco、Alcohol and pharmaceutical industries：
2015-01-24 Reading quantity 2908
introduction： （one）summarize With the continuous expansion of the scale of sugar mills，The original sugar boiling workshop appears to be crowded，To make full use of the existing factory space，Many foreign sugar mills have adopted vertical crystal helpers(See picture1)。 Single slot capacity of vertical assistant100Cubic meter sum150Two cubic meters，When the capacity is150Cubic meter hour，About diameter4.5meter、high10meter，There is a hollow tube type agitator shaft in the middle，Several layers of mixing paddles are installed above：Between two adjacent blades，Fitted with a snake tube heat exchanger（Attached map），The adjacent layers of the heat exchanger are connected in series
2015-01-24 Reading quantity 2814
introduction：1．Raceway inclined spalling： Bearing in Entene[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。]Inclined spalling ring on the working surface，It indicates that the bearing is working in the inclined state，When the Angle of inclination reaches or exceeds the critical state，It is easy to form early abnormal sharp wear and spalling。The cause is mainly due to poor installation，The shaft has a deflection、
2015-01-24 Reading quantity 1522
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