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introduction：CNC machining，Must be based on the performance characteristics of CNC machine tools、Scope of application，The processing technology of parts is analyzed。 The first is to analyze the possibility of CNC machining of parts：Installability of blank parts、The machinability of the material、The feasibility of tool movement and machining allowance are analyzed。 The second is to analyze the convenience of programming：It depends on whether the dimensioning method of part drawings is convenient for coordinate calculation and programming，Can reduce the size of tools and the number of tool changes，Improve production efficiency and processing quality。 The third is to choose the appropriate processing plan through process analysis：For the same part，Due to the way the installation is positioned、cutter
2015-04-13 Reading quantity 1438
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。]Type selection summary：Chinas CNC machine tool parts function industry needs to be developed：Processing method Shandong Yantai Global Group launched CNC turret tool holder high performance melting high speed steel basedMSC.ADAMSsomeMPVControl stability improvement analysis a high precision
2015-04-13 Reading quantity 1718
introduction：KOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，Often without a cage，Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process，The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]There are four main methods of grease injection，Theyre the fat cup method、smudging、Grease gun method and centralized grease feeding method。 first：Fat cup method inKOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads，
2015-04-13 Reading quantity 1529
introduction： A steam turbine that provides both power and heat。The power it provides can be used to drive a generator running at a constant speed or a pump running at a variable speed﹑Blower and other machinery﹔The heat energy provided can be used for industrial production or civil use。The heat energy of steam can be fully utilized by the application of heat-supply turbine。The heating turbine may be of back pressure type﹑Extraction condensing type﹑Extraction back pressure type and low vacuum condensing type。Exhaust steam is used for heating of back pressure turbine。Extraction condensing turbine extracts steam with a certain pressure from the intermediate stage of the turbine to supply the heat user﹐It is generally divided into single extraction steam and double extraction steam。The double extraction steam turbine can supply heat
2015-04-13 Reading quantity 2780
introduction： High temperature hot forging die refers to high temperature(exceed600The degree of)Under the use of forging mold。The conditions of use of this mold are very bad，Not only to withstand extreme heat but also to withstand high impact。Now the general use of hot forging die material5CrNiMo 5CrMnMo,H13,3Cr2W8VEqual grade，But these types of steel are in use，Due to high temperature and high stress，So the temperature of these materials exceeds600The usage is not very good。 IN718thereforeNiAs matrix，Aluminum is added to the alloy，Titanium is carried out to form intermetallic compoundsr
2015-04-13 Reading quantity 2781
introduction： Internal combustion engine shafting is made of steel or ductile iron﹐Inherent elasticity﹐Have inertia﹐It has its own natural frequency。Under the excitation of harmonic torque﹐It creates a forced torsional vibration﹐When the frequency of the excitation torque approaches the natural frequency of the shafting﹐Torsional vibration amplitude increases sharply﹐The phenomenon of resonance occurs。Strong resonance will destroy the normal operation of the internal combustion engine and the balance of each cylinder﹐Cause gear strike﹑Noise increase﹑Power drop﹑Part damage﹐Even broken axis。 Natural frequency of shafting The natural frequency of shafting depends on the elastic and inertial characteristics of shafting。Elastic characteristics to flexibility(Unit torque
2015-04-13 Reading quantity 2855
introduction： one、summarize Vacuum packaging machine is a kind of mechanical equipment widely used in packaging industry，Most of the original equipment is controlled by relays，High failure rate、Poor stability、Single function。Because of Hywei deep technology（Shenzhen）Produced by a limited companyV80Series smallPLCWith high reliability、High cost performance and complete use of hard logic to achieve analysis and other features，In order to improve the product cost performance and reliability，adoptV80seriesPLCDeveloped a special vacuum packaging machinePLC
2015-04-13 Reading quantity 2793
introduction： Standard number Standard Chinese name Standard English name SY/T5835-93 Well head ball valve for fracturing GB/T12237-1989 Universal valve flange and butt welded joint steel
2015-04-13 Reading quantity 2903
introduction：baoxiao planing shaping and planing The cutting process using the relative linear reciprocating motion of the planer and the workpiece in the horizontal direction。Planing can be used to process planes and grooves，If using a forming planer or adding a copying device，It can also process the formed surface。Planing can be done on a shaper or a planer（See picture[Planing diagram]）。The former planer knife moves reciprocately，The workpiece is fed intermittently after each return trip，For machining smaller workpieces；The latter works in reciprocating motion，Intermittent feed movement of the planer after each return trip，Used for processing longer and larger workpieces
2015-04-13 Reading quantity 2793
introduction： 20century60In order to accommodate nuclear energy﹑Large scale integrated circuit﹑Laser and aerospace and other cutting-edge technology needs to develop a highly accurate processing technology。to80Early era﹐The highest machining dimensional accuracy has been reached10nanometer(1nanometer=0.001micron)level﹐Surface roughness up to1nanometer﹐Machining minimum sizes up to 1micron﹐We are moving towards the goal of dimensional accuracy in nanoscale machining。Ultra-precision machining at the nanoscale is also known as nanotechnology(nanotechnology) 。Ultra-precision machining is the place
2015-04-13 Reading quantity 2802
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