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introduction： 1、External forces applied during assembly，Do not go through the 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 roller or ball pass，To avoid damaging the bearing。 2、Priority is given to non-impact loading and unloading。 3、When you need to tap，Do it right。 4、For the requirement
2015-03-17 Reading quantity 1535
introduction： A heat exchanger with an inner tube in a concentric casing as a heat transfer component。Two tubes of different diameters are fitted together to form a concentric casing﹐Each section of casing is called“A short distance”﹐Chengs inner tube(Heat transfer tube)throughUV elbow﹐The short pipe of the outer pipe is connected successively in a row﹐Fixed on the bracket(In the picturea The structure of the tube heat exchanger )。Heat is transferred from one fluid to another through the inner tube wall。usual﹐Hot fluid(Afluid)top-up﹐And cold fluid(Bfluid)Its introduced from below。Both ends of the casing and the outer pipe are welded or flanged with the inner pipe。Inner pipe andUV-toggle multi-flange connection﹐Easy transfer tube
2015-03-17 Reading quantity 2771
introduction：Reducer 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。]Quick on-site repair of room wear Reducer bearing room is worn，After the problem occurs，Traditional methods are difficult to solve on site，Must rely on external repair，Long downtime required，Waste valuable production time of enterprises。And its all about repairing metal with metal，Cant change“Hard on hard
2015-03-17 Reading quantity 2784
introduction： In useFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]In the process of，Grease is very critical。If stale grease is used，Not only is it ineffective，And it will be damagedFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact ball bearing consisting of a cage assembly with a solid window cage。]。 ① Oil flow observation method Take two measuring cups，
2015-03-17 Reading quantity 1558
introduction：At present，Chinas explosion-proof electrical products are divided into national standards10Species form，But in explosion-proof appliances used in factories，The most used are flameproof type and increased safety type two forms，Intrinsically safe also has a certain amount，Other forms of explosion-proof electrical products are less used。These products are classified as follows：1The explosion-proof control box category mainly includes a lighting distribution box for controlling the lighting system and a power box for controlling the power system。Most of these products are combined in structure，At most controllable12Individual loop，The shell is mostly made of cast aluminum alloy material，There are also some welded steel plates，And a very small part
2015-03-17 Reading quantity 2876
introduction：1．Effect of alloying elements on austenitizing Austenite grains nucleate and grow at the boundary between ferrite and carbide；Dissolution of residual carbides；Homogenization of austenitic components，The process of austenite grain growth and coarsening at high temperature。The addition of alloying elements to steel has a great influence on the last three processes （1）Alloy steel containing carbide forming elements，The carbides in their tissues，It is an alloying cementite or special carbide that is more stable than cementite，therefore，Carbides are less soluble when austenitizing is heated，It requires higher temperatures and longer time。Generally speaking，The tendency of alloying elements to form carbides is stronger，its
2015-03-17 Reading quantity 1536
introduction： A steam turbine used to propel a ship。1897years﹐Parsons, UK﹐C.A.For the first time2000horse-power (1.5megawatt)Multistage reaction steam turbine installed44.5Ton boat“turbinia”nobue﹐The initial steam pressure is 1.4mpa。This steam turbine is high﹑In the﹑Low pressure3Individual cylinder﹐Respectively directly drive the propeller。The boat reached trial speed34.5section(1section＝1852/3600meter/seconds)﹐It surpassed the speed of steam-powered destroyers at the time﹐It shows the superiority of steam turbine in ship application﹐Since then, Marine steam turbines have been rapidly developed。
2015-03-17 Reading quantity 2869
introduction：1.Radial seal Commonly used radial contact seals include felt ring seals、Oil seal seal、Packing seal and sealing ring seal。Because in such sealing devices，The seal is in direct contact with the shaft or other fitting，therefore，Friction and wear are inevitable in the work，And raise the temperature，Therefore, it is generally applicable to China、Bearing under low speed operating conditions[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，To reduce the power transmission process
2015-03-17 Reading quantity 1549
introduction：The tools used in the machining center are made of universal tools（Also known as working head or cutter head）It is composed of a tool handle matching the taper hole at the front end of the spindle of the machining center。In application，According to the requirements of machining center machine tools、Fixture requirements、The properties of the workpiece material、Processing procedure、Cutting parameters and other relevant factors correctly select the tool。The general principle of tool selection is：Tool installation and adjustment is convenient，Good rigidity，High durability and precision。Under the premise of ensuring safety and meeting processing requirements，Tool length should be as short as possible，To improve the rigidity of the tool。 On the machining center machine tool，All kinds of knives are stored separately in the knife store，According to the procedure
2015-03-17 Reading quantity 2875
introduction： At present, the main difficulties of seasoning industry coding technology are： 1、Identification on various surfaces of different materials。The packaging materials and labeling contents of condiments are varied，To mark different content on different material surfaces，If you choose inkjet code，A range of sprinkler models for different requirements is required，Includes a small character nozzle for extremely high sign quality；If using laser coding technology，You need to choose can rely on contrast、articulation、Height and other adjustment，A laser for accurate marking。 2、Print quality，Can you get clarity?、High quality mark
2015-03-17 Reading quantity 2788
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