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introduction： 【Abstract of a paper】According to the problems existing in the auxiliary boilers of ships，Design an intelligent controller，And take advantage of8032The single chip microcomputer realizes the intelligent control of boiler，The experimental results show that the system can significantly improve the boiler control performance。The control algorithm of the system is described in this paper、structure、Working principle、Hardware composition and software design。 At present，The engine room service equipment of most domestic ships still uses a large number of relays、contactor、Time relay composition，Realize various control functions，Their common feature is the complexity of the circuit、Poor reliability、Sometimes it is easy to misbehave，Especially after the contact is oxidized and the iron core and armature are dirty
2015-03-13 Reading quantity 2930
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。]The limit speed is at a certain load、Maximum allowable speed under lubricating conditions，Bearing type、dimension、Load size and direction、Lubricant type and lubrication method、play、Cage structure and cooling conditions and many other factors
2015-03-13 Reading quantity 1545
introduction： Grade of steel Korea HJ America AISI Germany DIN Sweden ASSAB Japan JIS Factory hardness (Delivery basis) Chemical composition（%）
2015-03-13 Reading quantity 2934
introduction： [principle] The two dimensional mixer consists mainly of a rotary drum、Oscillating frame、The frame consists of three parts。The drum is mounted on a swinging frame，It is supported by four rollers and positioned axially by two stop wheels，In four supporting rollers，Two of the driving wheels are dragged along with the rotating power system to turn the cylinder，The swing frame is driven by a set of crank and swing lever mechanisms，The crank swinging lever mechanism is mounted on the frame，Swing frame by 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
2015-03-13 Reading quantity 2894
introduction：Shanghai banking company director said，To assist the domestic machine tool industry to upgrade the grade，Can compete with foreign manufacturers，The company carefully developed tangential external circulation ball screw-Super TSerial listing。
2015-03-13 Reading quantity 25524
introduction：Thermodynamic state parameter: A physical quantity describing the thermodynamic state﹐State parameter。A commonly used state parameter in thermodynamics is pressure﹑Specific volume﹑temperature﹑Internal energy﹑enthalpy﹑entropy﹑Helmholtz function and Gibbs function, etc。 stress The vertical force applied per unit area﹐symbolize。Pressure measuring instruments are usually in an atmospheric environment﹐The instrument therefore indicates not the true pressure of the gas but its difference from the atmospheric pressure。The true pressure of a gas is called the absolute pressure。When absolute pressure is higher than atmospheric pressure﹐Pressure measuring instruments indicate the extent to which absolute pressure exceeds atmospheric pressure﹐Surface pressure(Pc)
2015-03-13 Reading quantity 2954
introduction： 1、The products are serialized、Modular design idea，It has a wide range of adaptability，This series of products has a large number of motor combinations、 Installation position and structure scheme，Gear ratio classification fine，Meet different operating conditions，Realize mechatronics。 2、RSeries helical gear hard face reducer combined with international technical requirements，It has high scientific and technological content；&nbs
2015-03-13 Reading quantity 2917
introduction： Standard number Standard Chinese name Standard English name GB/T18689-2002 Small manual plastic valves for agricultural irrigation equipment Agricultural irrigation equipment--Manually operate
2015-03-13 Reading quantity 2937
introduction：Ordinary machine tools have experienced a history of nearly two hundred years。With electronic technology、Computer technology and automation，The development and comprehensive application of precision machinery and measurement technology，The production of electromechanical integration of the new machine tool - CNC machine tool。Numerical control machine tool once used shows its unique superiority and strong vitality，Make many problems that could not be solved before，Found a scientific solution。 CNC machine tool is a kind of digital information，Control the machine tool according to the given trajectory，Mechatronics processing equipment for automatic processing，After half a century of development，CNC machine tool is one of the important symbols of modern manufacturing industry
2015-03-13 Reading quantity 2884
introduction：one、Bid acquisition situation： idtorIDTRepresentation equivalent adoption；eqvorMODIndicates equivalent or modified adoption；neqIndicates non-equivalent adoption。 two、National standard GB/T 786.1－1993（2001*） Hydropneumatic graphic symbol eqv ISO 1219-1:1991 GB/T 2346－2003 Fluid transmission systems and components Nominal pressure series ISO 2944:2000，MOD GB/T 2347－1980（1997） Hydraulic pump
2015-03-13 Reading quantity 2904
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