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introduction：A preliminary study on textile sizing and desizing was carried out using supercritical carbon dioxide as medium，Because conventional slurry is insoluble in supercritical carbon dioxide，Therefore, a special slurry containing fluorine structure has been developed，And used in polyester／Sizing of cotton blended yarn。The results show that fluorine slurry can greatly improve the wear resistance of yarns，Conventional starch／PVAserous3More than。The slurry can be completely removed with supercritical carbon dioxide。 It has also been tried to refine cotton and its blended fabrics with supercritical carbon dioxide。Research shows that，The waxy on the fiber can be removed by its extraction、Oil and certain synthetic slurry，But rightPVA
2015-02-01 Reading quantity 2923
introduction：Apply： Apply to liquid foods（Dairy products、Fruit juice）The ultra-high temperature instantaneous sterilization and its aseptic packaging，Packaging material use3－5layerPECo-extruded film，Product shelf life at room temperature30-90day。Can save the cost of cold storage。The production line consists of：UHTsterilizer、Double head aseptic packaging machine、CIPSelf-cleaning system、Sterile air generator and homogenizer（option）Make up。 Working principle： Sterile milk is produced byUHTSterilizing machine and aseptic packaging machine jointly completed。 UHTThe sterilizer preheats the milk by means of heat exchange，Then enter the homogenizer（option）。 tong
2015-02-01 Reading quantity 2847
introduction： 1 The total the 1.0.1 To prevent and reduce fire on the garage、Repair garage、Hazards of parking lots，Protect the safety of persons and property，Formulation of this specification。 1.0.2 This specification applies to new construction、Expanded and remodeled garage、Repair garage、Parking lot(Hereinafter referred to as garage)Fire protection design，Not applicable to fire station garage fire design。 1.0.3 Fire protection design of the garage，We must proceed from the overall situation，Make it safe to use、Advanced technology、Economic rationality。 1.0.4 Fire protection design of the garage should be implemented
2015-02-01 Reading quantity 2827
introduction：In recent years，The miniaturization of components has become a developing trend。In many areas of technology（Like aviation、CARS、corpuscle、Mobile communication、Medical treatment、Technical fields such as optics and mechanical manufacturing）Micromechanical products are increasingly used。This miniaturization of components，Higher requirements are put forward for processing technology，These are produced in small sizes、High precision parts and molds make the machining industry face new processing problems。Because there is an essential difference between the micro-machining with a very small tool and the machining with a large specification tool。 To reduce manufacturing costs，A large number of micro components are manufactured using molds
2015-02-01 Reading quantity 2832
introduction： How to check the hydraulic tank of electric forklift truck 1、Check the oil absorption of the electric forklift、Whether the return oil filter and fuel filler filter screen are damaged，Whether the mesh is blocked，The filter screen should be cleaned in time，Repair or replace if damaged。 2、Check the quality of hydraulic fluid，No pollution required，There should be no excessive bubbles，non-metamorphism、Oxidation condition。The method of experience inspection was used，Immediate pass“see、The olfactory、shake、than”Other methods，To determine the extent of contamination and decide whether to replace。 3、Inspection fork
2015-01-31 Reading quantity 2991
introduction：1、The first is lubricationSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]Parts of，Reduce bearing friction and wear； 2、makeSKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabrike
2015-01-31 Reading quantity 1519
introduction：（1）GE…CType sumGE…TType extruded outer ring，The sliding surface of the outer ring is sintered bronze composite；The inner ring is a hardened 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。]steel，Sliding surface is hard chrome plated。Limited to small size bearings。The outer ring is bearing steel，The sliding surface is a layer of PTFE fabric；The inner ring is hardened bearing steel，Slide
2015-01-31 Reading quantity 1473
introduction：1.Fatigue spalling Rolling 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。]The inner and outer raceways and the surface of the rolling body both bear the load and roll relative，Due to the action of alternating loads，First at a certain depth below the surface（Maximum shear stress）Crack formation，This then extends to the contact surface causing a spalling pit，Eventually, it developed into a large flake
2015-01-31 Reading quantity 1815
introduction： By purpose，The basic structural parts of plastic molds can be divided into two categorieso (1)Forming part It is the part that determines the size and shape of the plastic part。 (2)Structural parts Parts other than formed parts in the plastic process。 As shown in the figure1—xAs indicated，core4、concave
2015-01-31 Reading quantity 2903
introduction：http://www.hljjsj.cn The reducer is a relatively precise machine，The purpose of using it is to reduce the speed，Increase torque。There are many kinds of it，Different models，Different kinds have different use categories： 1、According to the transmission type can be divided into Gear reducer、worm Reducer and planetary gear reducer； 2、According to the different transmission series can be divided into single stage and multistage reducer；&n
2015-01-31 Reading quantity 2838
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