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introduction：The automotive industry continues to face significant pressure from the need for flexibility and continuous improvement of production methods。With cutting costs and meeting increasingly stringent environmental regulations（Examples include the reduction of emissions and the disposal of old vehicles）The unchanged requirements together，Others include five-star EuropeNCAPGrading system includes security issues。 Current trend，For example, there is a growing variety of car models targeted at specific markets，Requires sharing policies on the platform、There have been further developments in parts sharing systems and modular design methods。Other hot topics include value added、Improved functionality and reduced vehicle weight。 The plastics industry can now
2015-02-01 Reading quantity 2821
introduction： CODE：00388 Device name：Spiral bevel gear milling machine Type specification：Machining diameter125~800mm Unit of measurement：Taiwan Main parameter content
2015-02-01 Reading quantity 2838
introduction：Content summary：More and more people pay attention to advanced manufacturing technology，Among them, the relatively mature philosophy of concurrent engineering has been popularized and applied abroad，There are also some early results at home。This paper combines the research practice at home and abroad，The general situation of concurrent engineering is introduced in detail，The gap between home and abroad is also analyzed，This paper hopes to provide some useful help for the research of concurrent engineering。 Subject term：Concurrent engineering，Virtual manufacturing，CAD one、Definition of concurrent engineering 1988National Institute for Defense Analysis（IDA—Institu
2015-02-01 Reading quantity 2907
introduction： One was originally used for moldingPETInjection molding extruders for preformed products can now manufacture two-component auto parts。 Husky Injection Molding Systems Ltd.The company will turn its moldIndexTechnology applied to car and truck parts production business，Located in Ontario,BoltonThe machine manufacturer continues to diversify its business beyond the packaging market。 Lear Corp.Bought one and installed itHuskycorporationQTI（Quadloc-T
2015-02-01 Reading quantity 2909
introduction：An important part of the petroleum industry，It is the industry that processes crude oil into various petroleum products through the petroleum refining process。Including oil refineries、Petroleum refining research and design institutions, etc，The main production unit in a petroleum refinery usually has：Crude distillation（often、Vacuum distillation）、Thermal cracking、Catalytic cracking、hydrocracking、Petroleum coking、Catalytic reforming and refinery gas processing、Refining of petroleum products, etc，Mainly produces gasoline、Jet fuel、kerosene、Diesel oil、Fuel oil、Lubricating oil、Petroleum wax、Petroleum pitch、Petroleum coke and various petrochemical raw materials。 significance The development of petroleum refining industry and national economy is very good
2015-02-01 Reading quantity 2883
introduction： In equilibrium，The properties of liquid substances depend only on two parameters: composition and temperature（Assumed constant pressure）。however，The liquid metals encountered in actual production and scientific experiments are often far from equilibrium。therefore，Liquid metals of the same composition and temperature often appear，The microstructure and properties obtained under the same solidification conditions are very different。This raises the problem of characterization and evaluation of liquid metal quality under non-equilibrium conditions。If we define the quality of liquid metal as a property that has an effect on the solidification process and solidification microstructure and properties，Then it must be affected by the following factors：
2015-02-01 Reading quantity 2887
introduction：1、Carbon structural steel and low alloy high strength structure grade representation method The above steel is usually divided into two categories: general steel and special steel。Brand representation method，Chinese Pinyin letters made of steel yield point or yield strength、Yield point or yield strength value，Steel quality grade and other parts of the composition，There is also the degree of steel deoxidation，In fact4Component composition。 ①Universal structural steel uses pinyin letters representing yield points“Q”。Yield point value(The unit isMPa)Sum table1Quality levels specified in（A、B、C、D、E）、Deoxidation method（F、b、Z、TZ）Equal symbol，Form the grades in order。
2015-02-01 Reading quantity 1594
introduction：General purpose reducer、Special reducer for rubber machinery、Speed reducer for loading and unloading machinery、Reducer for metallurgical machinery, etc。The selection of each series of reduction gear boxes in each type is not the same。In order to allow you to buy the right river gear reduction gearbox，Before purchasing, take a look at the selection manual of Jiangtooth reduction gear box。 In the selection of general purpose reducerDBY、DCYSeries taper cylinder reducer，The carrying capacity must be calculated by mechanical strength and thermal power，Selection steps are as follows： 1、Determine the transmission ratio of the reducer：i= Shizhong：n1—Input speed，r/min
2015-02-01 Reading quantity 2808
introduction： The structure design of mobile phone product is the key to realize the function of the product，This needs to be coordinated not only with the appearance of the product，More to consider the subsequent production assembly、Spray paint、inkjet、Mold design and manufacturing and other aspects。 The body structure design of mobile phone products involves a wide range of knowledge，There are mainly： 1.Material selection; 2.Surface treatment; 3.Processing means; 4.Packaging and decoration;The use of these factors directly affects the life and appearance of mobile phone products。It can be said that the level of the designer determines the vitality of the product and the level of the product，High-end products are not necessarily high cost， shipment
2015-02-01 Reading quantity 2793
introduction：NSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]Installation is good or not，Will affectNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）into
2015-02-01 Reading quantity 1445
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