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introduction：1、introduction The nozzle is a part of the coating pretreatment equipment，Is the core of the spray system。Spray treatment method is one of the common process methods before coating，The process is to spray the tank liquid to the surface of the workpiece with a water pump，By mechanical scouring，Accelerated chemical action，To complete the degreasing、Rust removal、Surface modulation、Phosphating and passivation processes，Make the degreasing effect better，The phosphating film is more uniform，Less processing time，Higher production efficiency。For different workpieces，When selecting the nozzle type，There are many factors to be considered comprehensively，The correct choice can give full play to the performance of the coating treatment agent and its own characteristics，Get quality before
2015-02-05 Reading quantity 2883
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 common quality defects of parts after heat treatment are：Quenching microstructure overheating、underheating、Quenching crack、Insufficient hardness、Heat treatment deformation、Surface decarburization、Soft spot scheduling。 1.superheating The microstructure overheating after quenching can be observed on the rough edges of bearing parts。But judge for sure
2015-02-05 Reading quantity 1548
introduction：91：What are the three elements of assembly？ a：Yes positioning、Support and clamp。 92：What the manual clamp has？ a：Clamp with screw、Wedge clamp、Lever clamp、Eccentric fixture。 93：What non-manual clips have？ a：Pneumatic fixture、Hydraulic clamp、Magnetic fixture。 94：What function does the spiral clamp have？ ：a：With splint、pressure、The top、Equalizing function。 95：What are the commonly used measurement items in assembly？ a：Linear dimension、parallelism、perpendicularity、concentricity、Angle。 96：The branch of a workpiece in assembly
2015-02-05 Reading quantity 2892
introduction： 1．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。]the4A basic feature （1）Contact Angle As shown in the figure12-14As indicated，The Angle between the normal line and the plane perpendicular to the bearing axis line at the contact point between the rolling element and the outer ring in the rolling bearingα，Called contact Angle。αbigger，The greater the bearing capacity to bear axial load。
2015-02-05 Reading quantity 1555
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。]The identification of normal technical status of radial ball bearings，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。
2015-02-05 Reading quantity 1545
introduction：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。]Use a variety of mechanical equipment，The conditions required for bearings are increasingly stringent market requirements for equipment and other attributes，Performance is also increasingly diverse。Ability from a lot of structure，dimension，Choose the best fitFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、
2015-02-05 Reading quantity 1542
introduction：Try to use close to the ideal deceleration ratio： Reduction ratio=Servomotor speed/Speed of output shaft of reducer Torsion calculation： For the life of the reducer,Torque calculation is very important,And pay attention to the maximum torque value of acceleration(TP),Whether it exceeds the maximum load torque of the reducer. Decelerating model number selection and precautions： The applicable power is usually the applicable power of the servo machine on the market,The applicability of the reducer is very high,The working coefficient can be maintained at1.2above,But in the selection can also be determined by their own needs: There are two main points: A.Choose servo motor
2015-02-05 Reading quantity 2877
introduction：Drawing can be done according to decorative needs，Straight grain、Wild grain、Screw thread、Corrugation and spiral, etc。 Straight drawing refers to the process of machining straight lines on the surface of aluminum plate by mechanical friction。It has the dual function of brushing off scratches on the surface of the aluminum plate and decorating the surface of the aluminum plate。There are two kinds of straight drawing: continuous silk and intermittent silk。Continuous silk can be used by cleaning cloth or stainless steel brush through continuous horizontal linear friction on the surface of the aluminum plate（If available*Under the condition of the current device, the steel wire brush is manually grinding or the brush is grinding on the aluminum plate with a planer）Acquire。Change the wire diameter of the stainless steel brush，Different thicknesses of grain can be obtained。Broken silk is usually in the brush machine
2015-02-05 Reading quantity 2790
introduction：Through heating 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。]Or bearing seat，An installation method using thermal expansion to convert a tight fit into a loose fit。It is a common and labor-saving installation method。This method is suitable for the installation of cylindrical roller bearings with large interference，The bearing or separable bearing ring is evenly heated in the oil tank before hot loading80-1
2015-02-05 Reading quantity 1456
introduction：Generally speaking, the following points should be paid attention to from the point of use： 1、NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]Proper clearance，overshock，Too small, poor lubrication，
2015-02-05 Reading quantity 1450
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