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introduction：Needle bearings in thrust roller[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。]pre-destruction，It provides users with sufficient discovery time，Dont ignore the friction，It slows down the speed of the ride，It takes more energy and less speed over long distances。If the roughness of the surface is subtle，If the lubricating oil film has the appropriate thickness，Then surface
2015-01-01 Reading quantity 1472
introduction： Bleaching promotion Xylanase is used to promote sulfate pulpECFandTCFbleach，Can save bleaching agent and/Or improve the whiteness of the stock after bleaching。 Fiber modification and deinking Amylase and cellulase are used for fiber modification and deinking，Can promote ink removal、Improve the whiteness of deinked pulp；Improve water filtration and improve the softness of toilet paper。 Lignin modification/Wastewater treatment Laccase is used for lignin modification and wastewater treatment，It can improve the wet strength of the slurry containing mechanical pulp and reduce the color of wastewaterBOD/CO
2015-01-01 Reading quantity 2810
introduction：The Archimedes worm Archimedes worm Safety factor safety factor; factor of safety Safety load safe load Concave surface、concavity concavity wrench wrench Leaf spring flat leaf spring Half-round key woodruff key Amorphosis deformation Pendulum bar oscillating bar Swing follower oscillating
2015-01-01 Reading quantity 2922
introduction：Austenitic stainless steel has good corrosion resistance，Resistance to high temperature oxidation，Good low temperature performance and excellent mechanical and processing properties。Therefore, it is widely used in chemical industry、petroleum、power、Nuclear engineering、aerospace、ocean、medicine、Light industry、Textile and other sectors。Its main purpose is to prevent corrosion and rust。Corrosion resistance of stainless steel mainly depends on surface passivation film，If the membrane is incomplete or defective，Stainless steel can still be corroded。Pickling passivation is usually carried out in engineering，Make the corrosion resistance potential of stainless steel play more。In stainless steel equipment with parts in shape、assemble、weld、Weld inspection (Like flaw detection、Withstand voltage test)And construction marks
2015-01-01 Reading quantity 1558
introduction：When using construction machinery in winter，Oil circuit、Gas path、Cooling pipes are prone to various failures due to cold weather，These failures are basically related to“ice”Relate to（The reasons are shown in the examples below）。Attention should be paid to this in use，So that failure can be timely、Smooth out。 （1）Thermostat malfunction。A (machine)YZ10BA type of roller，After starting the diesel engine, it was found that the water tank had“boil”phenomenon。Check the water tank and feel very cold，It indicates that the cooling water is not completely circulated。After removing the thermostat，Found ice in the thermostat，Prevents the main valve from opening，Cooling water can not be carried out
2015-01-01 Reading quantity 1466
introduction：Some people use itKOYOImported 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，Of course, the price is not cheap。]when，A major error occurred during the installation process，Resulting in bearing damage。In view of this problem，Id like to summarize a few points today aboutKOYOImported 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，fag
2015-01-01 Reading quantity 1473
introduction：hanji flux welding flux Granular welding material。It can be melted to form slag and gas during welding，It can protect and metallurgize the molten pool。Flux made of marble、quartz、Ores such as fluorite and titanium dioxide、Cellulose and other chemicals。Flux is mainly used for submerged arc welding and electroslag welding。Used for welding various steels and non-ferrous metals，Must be used in reasonable combination with the corresponding welding wire，To get a satisfactory weld。Flux is classified as acidic、Neutral and basic3Kind of,According to the manufacturing method, it is divided into melting flux and non-melting flux。Melting flux is the powder of various ores melted by electric arc furnace
2015-01-01 Reading quantity 2830
introduction：Applicable model： 1、Gantry milling machine：X245（A662），X209（6642），X2010，X2012A，FRM5，6642H1，92001。 2、Double column milling machine：FX03，Γф564H1，Γф273-11A，ΓФ535H2，ΓФ459，ΓФ544H1，ΓФ571H1，ΓФ529H1，FXZ-001，ΓФ462C1。 3、Single column milling machine：ΓФ447H1，ΓФ456H1ΓФ458H1，ΓФ461HXΓФ458C，Γ
2015-01-01 Reading quantity 2827
introduction：How to maintain manual forklift in winter 1、Due to the cold weather，Drivers are prone to fear of cold，Be timid at work，Easy to simplify operation procedures，And wear more，In particular, it is difficult to get on and off the bus，Easy to cause bumps。 2、Winter temperatures are lower，Fat viscosity is high，Fuel vaporization performance is poor，The manual forklift is dead on four wheels，The motor of electric forklift truck is difficult to start，Especially open storage，And garage heating under poor conditions of storage of vehicles，Especially electric forklifts，It will cause the drive axle、The viscosity of the grease in the transmission and engine increases，consequently
2015-01-01 Reading quantity 2850
introduction： 1、OHardness of the ring OThe hardness of the ring material is the most important index to evaluate the sealing performance。Hardness determinesOThe compression amount of the ring and the maximum allowable extrusion clearance of the groove。Due to ShawA70The Ding Qing seal can meet most of the conditions of use，Therefore, there is no special explanation for the sealing material，Generally offered by ShawA70The butadiene rubber。 2、Extrusion clearance Maximum permissible extrusion clearancegmaxAnd system pressure、OThe diameter of the ring section is also related to the hardness of the material。usual，The higher the work pressure，Maximum permissible extrusion clearancegmaxThe smaller the value is。If gapgOut of bounds，Will lead to
2015-01-01 Reading quantity 1578
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