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introduction：A lathe with a turret holder capable of holding multiple knives。Turret holder can be transposed﹐It used to be mostly hexagonal﹐So turret lathe old turret lathe。Turret lathes are AmericanJ.Fichuus1845invented。It is usually used to turn the bar material held in the spring chuck or the billet mounted on the chuck﹑Drilling and reaming。After the use of additional devices﹐Threading and copying are also available。Turret lathes are suitable for mass production。 The axis of the turret tool holder is mostly perpendicular to the machine tool spindle﹐Longitudinal feed can be made along the bed guide rail。Average size﹑The medium turret lathe is of sliding saddle type﹐The turret chute moves directly onto the bed
2015-06-14 Reading quantity 2990
introduction：Continuous casting and rolling technology is the use of thin slab continuous casting in the steelmaking workshop，The thickness of the cast slab is only 50mm 、temperature 900 ℃ 。Then its heated in a tunnel furnace 1000 ℃above，Feed into the finishing group of the hot mill，Roll to 0.8-12mmHot rolled strip steel。In this way, the steel rolling operation is completed in the steelmaking workshop，Make the steel process continuous and short process，To an unprecedented height。
2015-06-14 Reading quantity 2995
introduction： A cylindrical combustion chamber that uses a high-speed rotating air flow to make coal particles rotate at a high speed and burn strongly(furnace)。Cyclone furnaces can be used for boilers and other equipment。The high-speed rotating action of the air stream throws the coal particles towards the wall of the cylinder﹐The coal particles burn in the space near the wall and the wall of the cylinder﹐Forming a very hot zone﹐The ash melts and sticks to the wall of the cylinder。There is a high relative velocity between the air flow and the coal particles adhering to the liquid slag film﹐Encourage the fuel to mix well with the air﹐Therefore, the cyclone furnace has a high combustion intensity。 Cyclone furnace according to the structure can be divided into horizontal and vertical two kinds。 Horizontal cyclone furnace﹕Which axial coal into the bed
2015-06-14 Reading quantity 2885
introduction：Rub a little bit of lubricant between your fingers，If contaminants exist，It can be felt；Or apply a thin layer of lubricant to the back of your hand，Then perform a light seal check。 If adverse symptoms have been shown，Be sure to replace，A poor oil seal can causeKOYObearing[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 to install the roller and cage
2015-06-13 Reading quantity 1544
introduction：In chemical cleaning，Various acids are mainly used、alkali、Organic solvent、surfactant、Corrosion inhibitor、chelate(complex)And other raw materials prepare cleaning agent to remove dirt。While removing the dirt，It also produces a lot of liquid waste itself、Exhaust gas，Cause great damage to the environment。 To speed up the cleaning speed，Under the condition of corrosion inhibition rate，Many industrial cleaning is at a relatively high temperature through the cleaning agent and dirt chemical reaction to achieve the purpose of removing dirt，This requires a certain amount of energy and raw materials。Physical cleaning is the use of various forces、hot、The sound、light、Physical action such as electricity removes dirt，Its technical level is main
2015-06-13 Reading quantity 1657
introduction：Injection molding Overview one、 Principle and process of injection molding： It is a main processing method for thermoplastic molding 1、 Die closing，charge，heat，plastify，extrusion 2、 Injection，Pressure maintaining，cooling，solidify，stereotyping 3、 Screw inserts，Ejector ejector two、 Injection molding equipment 〈one〉Classification of injection molding machines： 〈1〉 By purpose：Thermoplastic injection molding machine，Thermosetting plastic injection molding machine 〈2〉 By shape：Vertical type，horizontal，Angular type 〈3〉 By capacity：Minor（〈50cmInjection volume，middle-sized（50~1000
2015-06-13 Reading quantity 2803
introduction： Feed water to the boiler﹑Automatic adjustment of thermal process variables such as combustion。Realize the automatic control of boiler﹐Safe operation against﹑Energy saving is of great economic significance。Depending on the structure of the boiler﹑The way it runs and the fuel it uses is different﹐There are also differences in control systems。Generally, small boilers only have water level regulation systems﹐Medium boiler must have combustion and furnace pressure regulation system﹐Large boilers also have oxygen correction systems﹐The boiler supplying superheated steam also needs to add superheated steam temperature control system。The automatic control system of high temperature and high pressure drum boiler in power plant is a typical industrial boiler control system﹐It is automatically regulated by the water supply system﹑overburnt
2015-06-13 Reading quantity 2894
introduction： Influence angular contact ball bearings[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。]There are two main factors of grinding metamorphic layer，Respectively areTIMKENThe role of bearing grinding force and grinding heat。 1、Grinding force In the grinding process，The workpiece surface layer will be subjected to the cutting force of the grinding wheel、The force of compression and friction。Especially the last two.
2015-06-13 Reading quantity 1532
introduction：IKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]At a move、The inner ring takes the raceway surface of the outer ring，Because taking the rolling element is rolling contact，If this running trajectory is a dark surface，The running track attached to the raceway surface is not very，The load premise is then known，So the needle roller bearing is being removed from the environment，What types of bearings are sealed？。Be strict with
2015-06-13 Reading quantity 1714
introduction：1.How to define the position of the shaft，Both radial and axial positions are the first things to consider。 The general shaft mostly uses double support structure，The radial position of the shaft is defined by two supports，Each support shall have a radial or angular contact bearing for radial positioning[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 axial position can be supported by two
2015-06-13 Reading quantity 1638
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