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introduction： There are two types of clutches 1.Electromagnetic clutch；Electromagnetic clutches can be divided into：Dry multi-disc electromagnetic clutch，Dry single disc electromagnetic clutch，Wet multi-disc electromagnetic clutch，Magnetic powder clutch，Slip type electromagnetic clutch, etc。 Electromagnetic clutch working mode can be divided into：Power bond and power bond。 Dry single disc electromagnetic clutch：When the coil is energized, it produces a magnetic pull“armature”slice，The clutch is engaged；Coil off“armature”rebound，The clutch is disengaged
2015-05-02 Reading quantity 2884
introduction：1、 The diaphragm coupling consists of at least one diaphragm and two bushings。The diaphragm is fastened to the bushing with pins generally without loosening or causing recoil between the diaphragm and the bushing。Some manufacturers offer two diaphragms，There are also three diaphragms available，There are one or two rigid elements in the middle，The two sides are then connected to the shaft sleeve。 2、 The difference between a single diaphragm coupling and a double diaphragm coupling is the difference in the ability to handle various deviations，Because it requires complex bending of the diaphragm，So the single diaphragm coupling is not very suitable for eccentricity。The double diaphragm coupling can bend in different directions at the same time，To compensate for eccentricity。 valve Inlet pump
2015-05-02 Reading quantity 2932
introduction：Reducer is an important part of metallurgical equipment，It is widely used，Large consumption。Failure to repair the faulty reducer in time，It will seriously affect the production and damage the reducer，Its also uneconomical not to repair it。The most used in metallurgical enterprises is a variety of open-wire cylindrical gear reducer
2015-05-02 Reading quantity 2881
introduction：The use of compressed gas as a power tool﹐Also known as wind tools。Pneumatic tools are mainly divided into impact﹑Rotary type and both impact and rotation functions。(1)Impact pneumatic tools﹕The piston is driven by compressed gas﹐Produces high speed hammering effect﹐Complete required action。Like a hammer striking a thousand rods﹑Demolish building﹑Air pick for breaking pavement﹐A rivet gun for riveting metal structures﹐Wind shovel for removing burrs from castings and forgings and hammer for removing rust or tamping sand。(2)Rotary pneumatic tools﹕The compressed gas drives the blade air motor to rotate the tool﹐Complete required action。Such as pneumatic grinding head and polishing machine﹐Hole sum
2015-05-02 Reading quantity 2834
introduction： one、 Flange coupling（figure2）At assembly time，The ends of the two half couplings should be in close contact，The radial displacement of the two axes should not be greater than0.03mm。 two、 Pin coupling with elastic sleeve（figure3）At assembly time，Radial displacement of two axes、Allowable deviations of inclination of two axes and end clearance shall conform to the table1Regulation of...。 three、 Elastic pin coupling（figure4）At assembly time，Radial displacement of two axes、Allowable deviations of inclination of two axes and end clearance shall conform to the table2stipulate。
2015-05-02 Reading quantity 1540
introduction： A pump that relies on the centrifugal force generated by the rotation of the impeller to transport liquid。figure1 Working principle of centrifugal pump The working principle of centrifugal pump。The liquid in the impeller is pushed by the blade and rotates together with the blade。Centrifugal force caused by rotation﹐The liquid moves outward from the center﹐And gain momentum increment。Around the impeller﹐The liquid is thrown out into the spiral flow path。Due to the decrease in liquid velocity﹐Some of the kinetic energy is converted into pressure energy﹐Thus overcoming the resistance of the discharge pipe continuous outflow。The liquid at the inlet of the impeller is thrown out, which causes the inlet to form a low pressure(Or vacuum)﹐Therefore, the suction tank liquid at the liquid level pressure(
2015-05-02 Reading quantity 2839
introduction： Rotomizing, also known as rotary molding, is a processing method used to manufacture hollow seamless products of various sizes and shapes。traditionally，It is mainly used in thermoplastic materials，In recent years，Thermosetting materials such as crosslinked polyethylene have also developed rapidly。Since rotomizing does not require a high injection pressure，High shear rate or accurate compound meter。therefore，Molds and machines are cheaper，And the service life is also long。Its main advantages are：Performance of machine/Relatively high price；The forming of complex parts does not require post-assembly；Multiple products and colors can be molded at the same time；The cost of mold is low；Color and material
2015-05-01 Reading quantity 2822
introduction：Electrochemical protection Material protection technology that inhibits or reduces the corrosion of metal structures by changing polarity or moving the anode polarization potential of the metal to a passive zone。From the two metal electrodes of the Gaffani battery﹐Corrosion always occurs at the anode。Cathodic protection is in moist soil or contains electrolytes(saltlike)The water liquid and other electrolyte﹐Use sacrificial anode(Such as zinc﹑al)Or inert anode of impressed current﹐The protected steel structure becomes the cathode in this artificial Gafani cell。In the same corrosive environment﹐The most active is the anode﹐The smaller is the cathode﹐In seawater, for example﹐Zinc is interwoven with mild steel
2015-05-01 Reading quantity 2758
introduction：Length measurement technology that can automatically identify whether the measured length is qualified or not or can automatically sort。Automatic measurement can measure only one parameter，It is also possible to measure multiple parameters of a workpiece simultaneously or continuously，There are two kinds of active measurement and off-line automatic measurement。Off-line automatic measurement refers to the measurement where the information from the measurement result is not directly used to control the machining，For example, with automatic sorters、Automatic inspection machines and multi-dimensional inspection devices measure finished workpieces。The automatic sorting machine is used to measure the high accuracy of the fit、Need to put the tolerance belt（See tolerance）A workpiece divided into several size groups for selection。The basic process of automatic sorting machine(See picture[Automatic sorter
2015-05-01 Reading quantity 2806
introduction：Metal plastic deformation is caused by the high pressure generated by the instantaneous release of energy，Forging and forming techniques used to make workpieces。High energy rate forming technology is derived from20century50The era of rapid development，Mainly includes high-speed hammer forging、Explosive forming、Hydroelectric forming and electromagnetic forming。The energy used for forming can be electrical or chemical energy，It is transformed into a deformation force by the transfer of gas or liquid。High speed hammer forging is mainly used for die forging and extrusion,other3The method is mainly used for sheet metal blanking、Deep drawing、bulging、Cutting and finishing, etc。Generally speaking，High energy rate forming equipment is simple，Low energy consumption，The surface of the product is smooth，High precision，Can improve the plasticity of materials and
2015-05-01 Reading quantity 2816
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