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introduction：Molten steel outside the furnace refining and molten iron pretreatment is nearly this century 50 Two important process technologies developed rapidly in recent years，The birth of these two technologies，Mainly in order to solve some high-quality varieties of production and quality problems，Gradually developed to improve and optimize the entire steel production process，Energy saving and consumption reduction，Quality is one of the indispensable independence，Both techniques are used in traditional ironmaking、Outside the steelmaking metallurgical furnace，In a more optimized way，Part of the original function of the metallurgical furnace has been completed，Therefore, off-furnace refining of molten steel and water treatment are called off-furnace treatment technology。
2015-03-29 Reading quantity 2804
introduction：jianlianjie Key joint key joint A detachable connection that combines the shaft with a hub part by means of a key（See picture[Type of key join]），It is a common connection between shaft and gear or shaft and pulley。Keys are standard parts，Installed in the keyway between shaft and hub，Split flat key、Semicircular keys and oblique keys3class。 ①Flat key：The side is the working face，Fit with the side of the keyway to form a loose connection，Torque is transferred by the pressure between the key and the keyway。Flat keys include common flat keys、Lead and slide keys 3Kind of。Plain flat keys are used for static connections with hub parts that do not need to move on the shaft；The guide key is fixed on the shaft
2015-03-29 Reading quantity 2813
introduction：one、Design raw materials and data 1、Type of prime mover、specification、Rotational speed、power（Or torque）、Starting characteristic、Short-time overload capacity、Moment of inertia, etc。 2、Type of working machine、specification、use、Rotational speed、power（Or torque）。Working system：Constant load or variable load，Load diagram of variable load；Rev.、Braking and short-time overload torque，Starting frequency；Degree of shock and vibration；Direction of rotation。 3、Prime mover The connection between the machine and the reducer，Whether the shaft has radial and axial forces。 4、Installation type（Reducer and prime mover、Relative position of the working machine、Vertical type、lying
2015-03-29 Reading quantity 2835
introduction：Harbin Jinlongtai reducer Chinese marketing strategy one、Strategy summary 1：Product customer market positioning strategy 2：Product marketing strategy 3：Marketing and sales force management strategy two、Eastern company operating sales status In order to“Wenzhou Yongjia-Lishui (a county in Shandong Province)”For the companys product production base，In order to“Shanghai”For the company Product marketing center，exploit、Build the companys overall product marketing network。 Population of Shanghai、The economy ranks first in the country。At present Shanghai has been formed by railways、waterway、highroad、aviation、Wait for traffic
2015-03-29 Reading quantity 2841
introduction： 1introduction In recent years, our economy has maintained a rapid growth trend，Especially in food、beverage、Domestic demand and exports are booming in light industrial markets such as electrical appliances and toys，Promote its related packaging industry also has a rapid development。Corrugated cardboard boxes account for a considerable proportion in the packaging field，The transverse cutting machine is an important link at the end of the corrugated board production line，The performance of crosscutting machine is one of the important factors affecting product quality and production efficiency，It is also the most complex part of the electrical control of the entire production line。With the increase of the variety and performance of Zhongda Dentong electromechanical products，It is now using Zhongda Dentsu
2015-03-29 Reading quantity 2921
introduction： In the elevator according to the vertical electromagnetic brake，How should the brake be adjusted?Hefei electromagnetic clutch for you to explain。 1、 Brake wheel(coupling)When rotating, it is often the vibration and noise source of the elevator，Keep it in balance，The radial runout should not be too large，The value cannot exceed0.015-0.03mm。 2、Brake-shoe block left of brake wheel、The right gap should be even and equal，Especially the four corners of the gap should be even，Avoid local interference during movement and partial load during braking。There should be surface contact between the tile and the brake wheel，—Generally should be controlled in80%around。
2015-03-29 Reading quantity 2833
introduction：The rotary table commonly used in CNC machine tools includes indexing table and CNC rotary table。CNC machine tools in the processing of certain parts，Apart from the needX,Y,ZThree coordinate axes of straight feed motion outside，Sometimes you need to get around itX,Y,ZCircular motion of three coordinate axes，We are calledA,B,Cshaft。 CNC rotary table can be used to realize circular feed movement。CNC rotary table(CNC turntable for short)In addition to the circular feed movement can be achieved，It can also complete the indexing movement。The function of the indexing table is only to transpose the workpiece，Use with automatic tool changer，Implement job one
2015-03-29 Reading quantity 1473
introduction： Chemical heat treatment process in which nitrogen atoms penetrate into the surface of steel work pieces。Traditional gas nitriding involves placing the workpiece in a sealed container﹐It is heated with flowing ammonia gas﹐Keep warm for a long time﹐The thermal decomposition of ammonia produces active nitrogen atoms﹐Continuously adsorbed to the surface of the workpiece﹐And diffused into the surface of the workpiece﹐Changing the chemical composition and organization of the surface layer﹐Excellent surface properties are obtained。If carbon is infiltrated at the same time in the nitriding process to promote nitrogen diffusion﹐It is called nitrocarburizing。The research of steel nitriding starts from
2015-03-29 Reading quantity 2807
introduction： Solid eccentric 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。]，Also called eccentric bearing,It is a very useful bearing type。Mainly includes the outer ring、Inner ring、Rolling body flower basket、Rolling element，The whole eccentric bearing has simple structure、Easy to use，No eccentric shaft is required to achieve eccentric function
2015-03-29 Reading quantity 1556
introduction：Reducer is the use of conditions and lubrication methods and installation process。There is no correct description and surface for the installation and use of the reducer in many places。Shanghai Zhenwei reducer engaged in reducer for many years，The following will explain in detail how to use and operate the reducer。 one、Reducer installation process (one)Reducer calibration，It can be done with steel or cast iron pads，The pad shall not exceed three in height，It can also be done by deed iron，However, the reducer should be replaced with a flat pad after calibration。 (two)The arrangement of the pad should avoid causing deformation of the body，The base bolts should be arranged symmetrically on both sides
2015-03-29 Reading quantity 2905
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