introduction:Tool Steel tool: Its heat resistant temperature is about200-300℃among,Can only be applied to the cutting of general materials,It loses its hardness at high temperatures。This kind of tool has poor heat resistance,The cooling effect of the coolant is required to be good,Generally, it is advisable to use emulsion。High speed steel tool: This material is made of chromium、nickel、tungsten、molybdenum、vanadium(Some also contain aluminum)Based on high-grade alloy steel,Their heat resistance is significantly higher than that of tool steel,The maximum allowable temperature is up to600℃。Compared with other high temperature resistant metal and ceramic materials,High-speed steel has a range of advantages,In particular, it has a high tenacity,Suitable for geometric shapes
2015-04-20 Reading quantity 2796
introduction:The main difference between NC machining process route design and general machine tool process route design,It often does not refer to the entire process from blank to finished product,It is only a specific description of the process of several CNC machining procedures。Therefore, it must be noted in the process route design,Because CNC machining processes are generally interspersed in the entire process of parts processing,Therefore, it should be connected with ordinary processing technology。Process flow chart1As indicated。 figure1Process flow The following problems should be paid attention to in the design of CNC machining process route: 1、Division of process
2015-04-20 Reading quantity 2906
introduction: Automobile hub 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。]The main role is to bear the weight of the car and provide accurate guidance for the transmission of the wheel hub。Hub bearings bear both radial and axial loads,Is a very important security piece。Now most of the domestic cars still use the traditional two sets of separate tapered roller bearings or Angle joints
2015-04-20 Reading quantity 1582
introduction: FAGbearing[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。]Used in accessories,It is indispensableFAGbearing[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。]Used oil。It is for...FAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a cage assembly with a solid window cage
2015-04-20 Reading quantity 1476
introduction:On silver linear guide fasteners indispensable role
2015-04-20 Reading quantity 45109
introduction:In Chinas development process,Quite a few specialists hold this view:Improve quality and technology from raw materials,Therefore, in recent years, the country has accelerated the pace of industrial raw materials development,Remarkable achievements have been made,Gm is also feeling this in the production of planetary reducer,We will promote the sustained and healthy development of the raw material industry,For accelerating industrialization in our country、Modernization is of great significance。Mainly carried out the following series of work: First, effectively transform the development model。We will promote technological innovation,We will intensify technological upgrading,Accelerate the promotion of raw material industry on the development track of innovation-driven and endogenous growth。
2015-04-20 Reading quantity 2905
introduction:1.Shaft ringshaftwasher A bearing mounted on a shaft[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。]gasket。 2.racehousingwasher Mounting table
2015-04-20 Reading quantity 1492
introduction: Gas assisted injection molding is an advanced injection molding process developed recently in Europe and the United States,Its workflow First, the resin is injected into the mold cavity,And then using a precise automated control system,High-pressure compressed nitrogen is introduced into the molten material,The interior of the plastic part expands and creates a hollow,The gas flows along the direction of least resistance to the low pressure and high temperature regions of the product。When the gas flows in the product,It hollows out thick wall sections by displacing molten material,These displaced materials fill the rest of the product。When the filling process is complete,The gas continues to provide the retaining pressure,Solve material cooling
2015-04-20 Reading quantity 2883
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。]The three main factors that must be considered in the selection are the limit speed、Required service life and intended workload,This is the choiceN
2015-04-20 Reading quantity 1453
introduction:There are many kinds of printing machinery,At present, the main use of frequency conversion speed regulation technology is offset printing press、Gravure press、Automatic slitting machine、Side sealing in sealing dual purpose bag making machine、Semi-automatic dual-purpose overlay machine、Wet laminating machine、Laminated film pressing machine、Adhesive wrapping machine、Aluminum foil slitting machine、Adhesive tape slitting machine, etc。Especially offset press、Intaglio printing presses vary according to classification standards,Can also be separated from a variety of types of machinery。Such as offset printing machine according to the color of monochrome、two-tone、multicolour(quadrichromatic、Five colours、Six colours),Medium monochrome、Two colors are most commonly used。According to the size of the paper is divided into eight、quarto、Go opposite directions、Full offset press。According to the printed side there are two sides、Single side
2015-04-20 Reading quantity 2914