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introduction：one、introduction MoldexisMold Expert(Mold specialist)rind，It is a computer-aided engineering analysis of plastic injection molding successfully developed and commercialized by Chinese people(CAE)software。Use this software，Users can simulate the filling during the molding process(Filling)、Pressure maintaining(Packing)、cooling(Cooling)And warping of demolded parts(Warping)course，And it can accurately predict the flow of plastic melt glue before the actual mold opening、temperature、stress、Shear stress、The distribution of variables such as volume shrinkage at the end of each program
2015-01-10 Reading quantity 2806
introduction： 1．M1432AType universal cylindrical grinding machine M1432AN universal cylindrical grinding machine is mainly used for grinding internal and external cylindrical surfaces、Inner and outer cone、Step shoulder and end face and simple forming surface of rotary body, etc。It belongs to the ordinary precision machine tool，Grinding machining accuracy can reachIT6~IT7level，Surface roughnessRafor1.25~0.08μmamong。This kind of grinder is very versatile，But the grinding efficiency is not high，Low degree of automation，Suitable for tool shop、Repair shop and single piece small batch production type，Its main parameter is the maximum grinding diameter320mm。 2．M143
2015-01-10 Reading quantity 1485
introduction： Electromagnetic clutch is a kind of coil on and off to control the clutch engagement and separation。Because of the use of electromagnetic clutch, we may need to adjust and control the electromagnetic clutch at any time，So theres a lot of problems with that because a little bit of careless adjustment can cause damage。Electromagnetic clutch、The friction disc of the brake is worn after long-term use，Cause the gap between the electromagnet and the armature to increase，Elongate the compression spring length，Reduced elasticity，Cause to slip。At this time, the gap increases，Not only the suction voltage of the armature coil rises，And the armature cant snap，Easy to burn other electrical components。So when adjusting，Need to understand
2015-01-10 Reading quantity 2921
introduction：(1)Rolling bearings with low noise requirements[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。] Standards in productionIKOBearing center，Some single-row radial ball bearings and short cylindrical roller bearings have low noise varieties for motor bearings。Which ball bearing from inside diameterφ2.5mmtoφ60mmThere are several varieties of beltsZl、Z2andZ
2015-01-10 Reading quantity 1565
introduction： The common causes and treatment measures of mechanical seal leakage are shown in the following table： Therefore, disabled now like hair raw The original Due to the place Richard measures shi The mechanical seal vibrates、fever、fuming、Release of wear products
2015-01-10 Reading quantity 1569
introduction： With the advent of machining centers，Especially the rapid development of high-speed cutting technology，Tapping processing has become a short item in production。To resolve this contradiction，Several tool manufacturing companies have invested a lot of manpower and material resources，All the links that affect high-speed tapping are tackled，Currently mainly from the development of high-speed taps，Several aspects such as floating tap chuck and automatic exit power of tap are studied，And achieved great results。 High speed tap From the United StatesEmugeThe company has recently developed a series of high-speed taps。Mainly from the following aspects to improve： Cobalt selection
2015-01-10 Reading quantity 2924
introduction： The vibration detection period is set too long，May not catchINAbearing[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。]Information begins to deteriorate，The period is too short. Procedure，It also increases the number of workers and the cost of testing。Therefore, it should be based on the structural characteristics of the bearing、Transmission mode、Rotational speed、Factors such as power and failure mode，Reasonable selection of vibration detection
2015-01-10 Reading quantity 1581
introduction：Fretting wear A composite type of wear caused by small amplitude vibration between compressed metal surfaces。In vibrating machinery﹐Threaded joint﹑Spline joints and interference fit joints are prone to fretting wear。It is generally believed that﹐The mechanism of fretting wear is﹕The normal pressure between the friction surfaces causes the micro-convex surfaces to stick。The bonding points are clipped by small amplitude vibration to become abrasive chips﹐The debris is then oxidized。The oxidized abrasive particles act as abrasive particles in the wear process﹐Pitting or worm-like scars on a rubbing surface。These marks or scars are the source of stress concentration﹐Therefore, it is also the source of the failure of parts under dynamic load。
2015-01-10 Reading quantity 2804
introduction：With the development of modern manufacturing technology，It is a general trend for enterprises to choose CNC equipment。At present, there is a dazzling array of CNC equipment on the market，How can we economically and reasonably choose the CNC equipment suitable for our enterprise，Has been a topic of concern。For this purpose，We are invited to Beijing Machine Tool Research Institute on the selection of CNC machine tools，This paper discusses the problems that should be paid attention to in the selection completely from the technical point of view，Limited in space，Well cover it in two issues。 For a manufacturing company，Improving production capacity often comes from production management、Manufacturing process、Production equipment and other aspects of technical transformation，while
2015-01-10 Reading quantity 2812
introduction：one、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 temperature of solution disposal should not be too high，Dont keep warm for too long，The heating temperature should not be higher than that1150"C，Warm time1-l_5min/mmWork out。lcrl8Ni9TiStainless steel body or flange parts when exposed to overheating，
2015-01-10 Reading quantity 1467
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