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introduction：Water vapor steam Carnot cycle Carnot cycle Diesel cycle Diesel cycle The Branden cycle Brayton cycle Mixed gas gas mixture enthalpy enthalpy Stirling cycle Stirling cycle Otto cycle Otto cycle Throttling process throttling process Refrigerator cycle refrigeration cycle Thermodynamic equilibrium th
2015-02-19 Reading quantity 2797
introduction：Todays car production，The development cycle for new products is getting shorter，Costs are also falling，There is information that，Automotive products that ten years ago required a four-year development cycle；Today it can be done in just two years。In addition, automakers have adopted advanced new product development methods，Virtual manufacturing，Synchronous engineering and other advanced development technology，It is important to benefit from the efforts of equipment suppliers who provide manufacturing equipment for automobile manufacturing，In particular, these equipment suppliers provide a variety of CNC machine tools，These CNC machines allow car manufacturers to deliver products that meet market needs at the fastest speed。 CNC machine tool classification and characteristics
2015-02-19 Reading quantity 2792
introduction：Use rolling 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。]Various mechanical devices、The performance of instruments and other market requirements are becoming more stringent，towardsNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKBearing fit
2015-02-19 Reading quantity 1453
introduction： The middle rolling workshop is the main bar production workshop of Laigang Special Steel plant，Its hot saw machine is the key equipment of hot rolled round steel。Due to the high failure rate of the hot saw machine，It becomes the bottleneck restricting the production of rolling steel。 one、Presentation of problem Hot saw spindle 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 lubrication method is original50#Mechanical oil oil pool oil bath
2015-02-19 Reading quantity 1444
introduction： Precision hot die forging production usually involves blanking、heat、forging、preforge、Finish forging、trimming、Multiple steps such as correction or finishing，。Because the forging shape size and accuracy requirements are different，Some steps can be omitted，The general principle of determining the work step is similar to that of ordinary hot die forging production line；Process design for the correct selection and utilization of equipment、Ensure product accuracy and quality、Improve production efficiency、Reduce production line investment and daily production costs、Energy and material saving、Improving the production environment and working conditions are closely related，Therefore, whether it is using the original conditions of the enterprise to carry out technical transformation，Or a new production line?，They all need to be analyzed in detail
2015-02-19 Reading quantity 2778
introduction：（one）、Use 1、Reducer is suitable for24Continuous hours work，And allow positive and negative operation。 2、The output shaft steering of a single-stage reducer is opposite to the input shaft steering，The output shaft steering of the double reducer is the same as the input shaft steering。 3、The reducer has no self-locking function。 4、The output shaft of the reducer cannot bear the axial force。 5、In use where overload is possible，Overload protection device should be installed。 6、Footplate recumbent cycloidal pinwheel reducer to be installed in no vibration、Very solid horizontal base，In applications where tilt installation is necessary
2015-02-19 Reading quantity 2790
introduction：one. Create a plan 1. tapFile -àNew Project,Create a new analysis plan 2. rightNew Projectname 3. tapOK two. Enter oneCADmodel Enter a file in the File menu,It can be oneMOLDFLOW MFLFormatted file.inMPIOpen one of the installed foldersTUTORIAL .MFLFormatted file,Set the mesh type to the default fusion type,And rename the file. three. Grid the model
2015-02-19 Reading quantity 2809
introduction：rightTIMKENbearing[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。]I believe everyone in the industry is familiar with it，But how to master itTIMKENMethod of identification of bearings ?？Let me introduce the method that I often use，Let me share with you。 （1）Thrust ball bearing Check before installation，Two guaranteed raceways
2015-02-19 Reading quantity 1472
introduction： Stainless steel pickling by steel grade、Strip surface status、Annealing conditions and other factors，The processes used vary，Should be determined on a case-by-case basis。 Acid concentration control （HNO3+HF）Pickling reaction in mixed acid is complicated，According to the concentration balance law of the general reaction formula and the actual experience of many manufacturers，Concentration of acid in the mixing tank，HNO3 Usually controlled in80-160g/l，HF Be controlled in8-30g/lamong。It should be noted thatHFThe concentration should not be too high，Otherwise the metal loss will increase，
2015-02-19 Reading quantity 1438
introduction：There are three basic rolled surface finishes for sheet and strip，They are represented by the production process of plates and strips。 No.1：Hot rolled、anneal、Pickling and descaling。The surface of the treated steel plate is a dull surface，A little rough。 No.2D：thanN0.1Finish well，Also a dull surface。cold-rolled、anneal、descaling，Finally, roll lightly with a rough roller。 No.2B：This is most commonly used in architectural applications，Except for a final light cold rolling with a polishing roller after annealing and descaling，Other processes and2Dalike，The surface is slightly glowing，Can be polished。 No
2015-02-19 Reading quantity 1554
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