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introduction：Phenolic resin is heat resistant、Resistance to friction，High mechanical strength，Electrical insulation、Low smoke and excellent acid resistance，Therefore, it has been widely used in various fields。However, due to the special use requirements in some fields，Water resistance、High temperature friction resistance、Compatibility with chemical fibers, etc，The research of modified phenolic resin is becoming more and more active，And gratifying new progress has been made，Such as： 1.Application in automotive brake pads Brake pads imported from abroad are cast with modified phenolic resin，Can be found in300℃～400℃It does not coke at high temperatures。Due to the use of naphthalene modification and silicone modification，So it has a high resistance
2015-03-22 Reading quantity 2877
introduction：shimo huanreqi Graphite heat exchanger graphite heat exchanger Heat exchangers with heat transfer elements made of graphite。The graphite used to make heat exchangers should be impervious，Commonly used impregnated impervious graphite and pressed impervious graphite。Graphite heat exchanger according to its structure can be divided into block hole type、Shell type and plate type3Species type。①Block hole type:It is composed of several blocky graphite elements with holes（See picture[Block hole type graphite heat exchanger]）。②Shell and tube type：Shell-and-tube heat exchanger plays an important role in graphite heat exchanger，According to the structure is divided into fixed and floating head
2015-03-22 Reading quantity 2776
introduction： ID Model number specification label Model number
2015-03-22 Reading quantity 1520
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。]Even though its metal，But it can be damaged，It doesnt matter what kind of hard material it is, you know，Its just a different level of damage，We all know that the quality of bearings is good，Theyre all made of fine steel，Steel is a very strong material，But it can be damaged，Turntable bearings are in the machinery every day
2015-03-22 Reading quantity 1548
introduction： A pressure transducer that brings two gaseous working substances into direct contact and transmits energy through pressure waves。It is used when the internal combustion engine pressurizes the gas entering the cylinder by using the exhaust energy of the internal combustion engine。The gas wave supercharger consists of an air stator﹑The gas stator and rotor are composed。The air stator is connected to the internal combustion engine intake pipe﹐The gas stator is connected to the exhaust pipe。The rotor is driven by the internal combustion engine crankshaft via a belt﹐The driving power is the internal combustion engine power1～1.5％。 figure Working principle of gas wave supercharger The working principle of the gas wave supercharger。When the rotor rotates in the direction of the arrow﹐An axial airway composed of blades on the rotor and its height
2015-03-22 Reading quantity 2869
introduction： Scope of application Metallurgical solid scrap slag treatment Main technical content one、Basic principle Metallurgical solid waste discharged from iron and steel enterprises is taken as the object of treatment，By special steel slag treatment device，Use the waste heat contained in it，Adopt appropriate water distribution technology，Produces a slightly pressurized vapor，The bulk steel slag was pulverized and self-dissociated in the hot tank，The recyclable metal is then magnetically sorted out，At the same time, the pulverized steel slag is classified into different groups with different particle size specifications in the automatic line，The steel slag treatment equipment and technology is the first in China。 two、Technology critical Hot tank and spray
2015-03-22 Reading quantity 2773
introduction： After the drainage and irrigation machine is discontinued，If not properly maintained and managed，It is easily rusted and damaged and cannot be used，therefore，After the drainage and irrigation machine is discontinued，It must be properly maintained and managed。 1.After diesel engine retirement，A thorough inspection and repair of all parts should be carried out，Keep it in good condition，Then apply the grease。Part of the body to remove paint，The paint needs to be repainted，Prevent rust。After inspection and maintenance, it should be raised in the room，Off-ground storage。 2.An electric motor used in an engine well，It should be removed from the well in time after decommissioning，Keep it indoors for inspection and maintenance。Wipe the dirt off the shell first，Rerunning machine
2015-03-22 Reading quantity 2774
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。]Disassembly of： INAImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Natural price
2015-03-22 Reading quantity 1533
introduction：Abstract：This paper starts from the technical requirements of developing wind power，Hoping to build one“Virtual design”R&d platform，But apply...CAETechnology is a good option。ShanghaiCAEThe establishment of technology public service platform is to provide an open service and guarantee channel for science and technology innovation and entrepreneurship to the society，The purpose is to improve the market competitiveness of enterprises and optimize innovation resources，Achieve resource sharing，ApplyCAETechnology methods to accelerate the development of Chinas wind power technology。 0 introduction Wind power is the key、The most central part is the rotor blade，The design of the blade and the material used are determined
2015-03-22 Reading quantity 2859
introduction：B B B-pillar Bcolumn B B-post Bcolumn B+ Battery Positive Voltage Positive battery voltage B/P EGR Back Pressure Transducer EGR Negative pressure sensor B/P Backpressure Back pressure B/S Bore-to-Stroke Ratio Bore travel ratio B/S Bill of Sale Bill of sale B/U Back-Up
2015-03-22 Reading quantity 2877
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