introduction: embossSalient point domegibbous semi-shearingHalf shear stamp markStamp mark deburr or coinBurr edge punch rivetingRam riveting side stretchSide stamping reel stretchRoll and flatten grooveWire compression blankinglaying-off stamp letterStamp word(Part number (P/N)) shearingsnip tick-m
2015-03-19 Reading quantity 2783
introduction: rightINAbearing[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。]Problems that arise during operation,Is more difficult to deal with。Because its not handled properly,It will cause damage to the bearing,And its life span is shortened。Generally speaking,We want to analyze the following from the point of view of the use of turbocharged bearings
2015-03-19 Reading quantity 1562
introduction: In English gear﹐PI and tooth spacingp(Sighting module)Ratio of﹐Diametral pitchP =/p﹐In order to 1/In inches。conceptually﹐Diametral pitch is the reciprocal of the modulus in the metric system。Corresponding to the conversion of units﹐The relation between diameters and modules is as follows P =/p=25.4/m ShizhongP Diametral pitch(1/inches)﹔ppitch(inches)﹔mmodulo(millimeter)。Diametral pitchPSimilar to the function of the modulus in the metric system。In most British systems
2015-03-19 Reading quantity 2826
introduction: Boiling dryer,Fluidized bed,It is made of air filter、heater、Fluidized bed main engine,Star feeder、Cyclone separator、Bag dust collector high pressure centrifugal fan,Console composition,Due to the different properties of dry materials,When matching dust removal equipment,Can be considered as needed,Cyclone separator can be selected at the same time,Bag dust collector,You can also choose one of them,Generally speaking, the drying of materials with a large proportion such as granules and pellets only needs to choose a cyclone separator,Small particles and powdery materials with light specific gravity need to be matched with cloth bag tip remover,Pneumatic feeding device is also available for selection。 The granular solid material is added to the fluidization by the feeder
2015-03-19 Reading quantity 2833
introduction:Before it was put into operation,Fill the reducer with the recommended type and value of grease。The reducer is lubricated with lubricating oil。For vertical mounted reducer,Whereas lubricating oil may not guarantee the top 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。]Reliable lubrication,Therefore, additional lubrication measures are used。 Before operation
2015-03-19 Reading quantity 2976
introduction:⑴Centripetal ball 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。]Identification of Radial ball bearings in normal technical condition,therein、The outer ring raceway should be free of peeling and serious wear marks,And in the shape of a bright circular groove;All ball bearings should remain round,spotless、Cracks and flaking;The cage is not loose、crusheproof、unworn。pawpaw
2015-03-19 Reading quantity 1432
introduction: Physical analysis instrument for measuring the humidity of gases。Humidity indicates the amount of water vapor in a gas﹐There are two ways to express absolute humidity and relative humidity。Absolute humidity refers to the absolute content of water vapor in a gas﹐The most commonly used unit is the gram/meter3。At a certain temperature﹑Pressure hour﹐There is a limit to the amount of water vapor per unit volume﹐This is called the saturated water vapor content。Relative humidity refers to the absolute content of water vapor in a gas and the same temperature﹑The ratio of saturated water vapor content in the same volume of gas at pressure﹐Common symbols are%R.H.。The use of hygrometers
2015-03-19 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。]The ingot is usually in1200~1250℃Long time diffusion annealing at high temperature,To improve carbide segregation。The atmosphere in the furnace should be controlled during hot working,The billet heating temperature should not be too high,The holding time should not be too long,To avoid severe decarbonization。finishing(forging)The temperature is usually in8
2015-03-19 Reading quantity 1443
introduction: Welding method using electron beam as heat source。As shown in the figure Schematic diagram of electron beam welding As indicated﹐Hot cathode(Or filament)Emitted electron﹐Accelerated by a high voltage electrostatic field in a vacuum﹐The success rate of electromagnetic field aggregation generated by magnetic lens is high1.5×105watts/centimetre2Electron beam of(Beam diameter is0.25~1millimeter)﹐Bombarding the surface of the workpiece﹐The released kinetic energy is converted into heat energy﹐Molten metal﹐Create deep and narrow welds(deep/Wide ratio up to10﹕1~30﹕1)﹐The welding speed can reach125~200meter/when﹐The heat affected zone of the workpiece
2015-03-19 Reading quantity 2795
introduction: At the customs,The commodity number is the same as the tariff number,Customs administration is carried out with this number The customs tariff code is summarized as follows: Metalworking machine tool:Host involvement81A tariff code,from84561000-84639000。 Which gold cutting machine56Kind of: 8456For special processing machine tools,A total of7Kind of tariff code; 8457For machining centers and groups and machine tool classes,A total of6Kind of tariff code; 8458lathe,A total of4Kind of tariff code; 8459Drill for、boring、Milling machines,A total of14Kind of tariff code; 8460It is a grinding machine,A total of16Kind of tariff code
2015-03-19 Reading quantity 2896