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introduction：Simple identification of plastic materials method species burnable difficult easy The flame took it off Whether to continue burning
2015-01-09 Reading quantity 2814
introduction： 1 You can use CTRL+TAB Key loop enters in SolidWorks In the open file。 2 Use the arrow keys to rotate the model。According to the CTRL Keys plus arrow keys can move the model。According to the ALT Keys plus arrow keys can rotate the model in a clockwise or counterclockwise direction。 3 You can pin the view-directed dialog box，Make it usable at all times of operation。 4 Use z To shrink the model or use SHIFT+z To scale up the model。
2015-01-09 Reading quantity 2813
introduction： The main characteristics of high-speed machining technology，The high speed machine tool used in mold industry is discussed、High speed cutter and high speedCAD/CAMSystem and other key technologies。 Molds are used in the manufacturing industry、Tool products with wide influence。No cavity mold、Die-casting die、Casting mould、Deep drawing die and stamping die，It will not be able to produce plastic parts that are widely used and have competitive prices、Alloy die casting、Steel plates and forgings。In modern mass production，No high level mold，There is no quality product，It improves production efficiency for enterprises、Reducing production costs also plays an important role
2015-01-09 Reading quantity 2875
introduction： A pressure measuring elastic element in a pressure measuring instrument。It is a cylindrical thin-walled creased shell with multiple transverse ripples，The bellows are elastic，Under pressure、Axial force、Displacement can be generated by lateral forces or bending moments。Bellows are widely used in instrumentation，The main use is as a pressure measuring instrument measuring element，Convert pressure into displacement or force。The wall of the bellows is thin，High sensitivity，The measuring range is tens of pa to tens of mpa。In addition，Bellows can also be used as sealing isolation elements，Separate the two media or prevent harmful fluids from entering the device
2015-01-09 Reading quantity 2813
introduction：IKOImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]It is an important part of a major industrial equipment。Bearing problems can lead to costly downtime，Equipment damage and failure。In addition，Large industrial bearings represent a large capital investment。 To achieve high equipment performance and to operate reliably with minimal maintenance costs，Proper handling methods must be followed。This includes bearing storage，Clear away，cleanse，Inspection and safety
2015-01-09 Reading quantity 1557
introduction： A heat exchange device that changes the steam from the steam turbine to condensed water after it is driven for work。Also known as condenser。After the steam has completed an expansion process in the turbine﹐In the condensation process﹐The volume of exhaust steam shrinks sharply﹐The space that used to be filled with steam forms a high vacuum。The condensate water passes through the condensate pump to the feed water heater﹑Feed water pump etc. into the boiler﹐Thus to ensure the continuous progress of the whole thermal cycle。In order to prevent the increase of oxygen content in condensed water caused by pipeline corrosion﹐Modern large capacity steam turbine also has a vacuum deaerator in the condenser。 The condenser is divided into surface type and hybrid type(For light cooling towers
2015-01-09 Reading quantity 2814
introduction： from80From this era，Our country successively passed from Germany、America、France、Japan and other countries have introduced more advanced car models and CNC production automatic lines，So that Chinas car manufacturing industry has been unprecedented development。In the car manufacturing industry，Most of the key zeros that determine the performance and technical level of a car、The parts are finished by cutting tools。The performance of cutting tools has become a car zero、Parts production automatic line to improve the level of processing technology、Production efficiency、An important guarantee of manufacturing accuracy and cost reduction。 The emergence of advanced machining production technology，Often makes the machining process simpler，Higher processing efficiency，essential
2015-01-09 Reading quantity 2886
introduction： Mechanical properties requirements of molds--Conventional mechanical properties The performance of the mold material is determined by the composition of the mold material and the organization after heat treatment。The basic structure of die steel is composed of martensitic matrix and carbides and intermetallic compounds distributed on the matrix。 The performance of the die steel should meet the performance of a certain mold to complete the rated workload，However, due to the use conditions of various molds and the rated workload indicators completed are not the same，Therefore, the requirements for mold performance are also different。Because the chemical composition and structure of different steels have different effects on various properties，Even though
2015-01-09 Reading quantity 2894
introduction：hezhengqi gongying xitong Nuclear steam supply system nuclear steam supply system A system in a nuclear power plant that generates steam from the heat generated by the fission reaction of the nuclear reactor core fuel。The nuclear steam supply system consists mainly of nuclear reactors、Steam generator、Primary coolant system and auxiliary system。Generally used for power generation、Drive and heating。figure1 [Schematic diagram of various nuclear steam supply systems]Is a schematic of various nuclear steam supply systems。 The type of nuclear steam supply system has a single loop
2015-01-09 Reading quantity 2905
introduction：(1)In 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。]Before installation，Appropriate measuring tools should be used in accordance with the technical requirements specified on the design drawings，Check the machining quality of shafts and seat holes and related parts(Such as dimensional accuracy、Shape accuracy and surface roughness)。 (2)If there is damage on the assembly surface of the shaft and seat hole、burr、
2015-01-09 Reading quantity 1589
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