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introduction：The basic principle of bending die（one） one、The basic principle of bending （one） The concept of bending process and bending parts 1． Bending process：According to the shape of the part，The blank is bent at an Angle by the die and press，Stamping process method of workpiece with certain shape。 2． Application of bending forming process in industrial production：Quite widely used，Such as a lot of covers on the car，Cabinet frame for a car，Handle on the motorcycle，Foot support，The support structure on the bike，handle，Small as a doorknob，clamp（cramp）Etc.。 （two）、The basic principle of bending：In order toVShaped sheet metal bending pieces
2015-01-25 Reading quantity 2893
introduction： Select the elements of the electromagnetic clutch Electromagnetic clutch selection is not a small problem，When it comes to its selection problem, it is not because of the simple understanding of the structural composition and working principle of the electromagnetic clutch，When it comes to electromagnetic clutch selection problems are not small，Is related to the size of the electromagnetic clutch、Installation and the suitability of torque。The electromagnetic clutch is divided into two working modes: power off and power on，Installation methods are also divided into hanging type and four-hole fixed，Sometimes it depends on the actual situation or the needs of the user。Electromagnetic clutch manufacturers or
2015-01-25 Reading quantity 2881
introduction： Technical requirements for forging Any questions concerning the quality and inspection of forgings，When it is not possible or inconvenient to express it in the drawing，All shall be described in text in the technical requirements of forging drawings，Its main contents are as follows：1)Die forging inclination is not injected；2)The fillet radius is not specified；3)Allowable value of surface defect depth，If necessary, the allowable surface defect depth of the forging on the machined surface and the unmachined surface shall be indicated respectively；4)The allowable value of the parting surface error；5)Allowable values of residual flash and cut depth。According to forging shape characteristics and different process methods，If necessary, the surroundings should be indicated separately、Inner bore、fork、portrait
2015-01-25 Reading quantity 2877
introduction：Zhou Anmin （Jiangsu Changzhou one step drying equipment factory，Changzhou, Jiangsu213116） Abstract：The drum dryer is prone to produce a wall at the feed end during the drying process，It has a great impact on production，In severe cases, it is almost unproductive。The wall can be eliminated by improving the structure of feed end of rotary drum dryer，The method is to set a scraper device at the easy junction of the feed end，Prevents the junction wall from forming，Thus, the working performance of the rotary drum dryer is improved，Improved production capacity and product quality，Reduced energy consumption。 keyword：Rotary drum dryer；eliminate；Junction wall；Scraper device In industrial production，now
2015-01-25 Reading quantity 2795
introduction： Plastic 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。]Rolling sound and its control method Rolling sound isIKOBearing in all occasions may occur harsh metal friction sound，Most occur in grease lubricated larger types of bearings，It is more likely to occur in greases with deteriorating base oil properties，Rarely occurs when oil is lubricated
2015-01-25 Reading quantity 1546
introduction：Once the reducer leaks oil，Its not just energy loss，And pollute the environment.，Serious will cause less oil reducer、Fuel cut，The wear of gear meshing surface is aggravated，Then bite welding or stripping occurs，Cause equipment failure。 1、Cause analysis of oil leakage of reducer 1.1 There is a pressure difference inside and outside the reducer During the operation of the reducer，Friction heating of moving pairs is affected by ambient temperature，Increase the temperature of the reducer，If there is no vent or the vent is blocked，The pressure inside the machine gradually increases，The higher the temperature inside the machine，The greater the pressure difference with the outside world，Lubricating oil under the action of pressure difference，Leaking through the cracks
2015-01-25 Reading quantity 2877
introduction：Abstract Virtual prototype technology is in the virtual realistic environment，It is an effective means to verify product design information through co-simulation，It can support parallel design effectively，Shorten product development cycle.After analyzing the relationship between virtual prototype and parallel design，A virtual prototype modeling and simulation method based on domain object is proposed，The key technologies of integration framework supporting virtual prototype are also described. keyword Parallel design，Virtual prototype，Integration framework，Domain object，simulation 1、introduction In the face of modern high-tech products design complexity barriers and fierce market competition，Product design student
2015-01-25 Reading quantity 2884
introduction： Principle and characteristics Boiling dryer，Fluidized bed，Go by30Years of use、improvement，Currently in pharmaceutical、Chemical engineering、food、Food processing and other aspects，More and more reflect its important role。It is made of air filter、Fluidized bed main engine、Cyclone separator、Bag dust collector、High pressure centrifugal fan、Console composition。Due to the different properties of dry materials，When matching dust removal equipment，Can be carried out as needed，Cyclone separator can be selected at the same time、Bag dust collector、You can also choose one of them。Generally speaking，Materials with a larger proportion only need to choose a cyclone separator。Lighter weight materials need to be matched
2015-01-25 Reading quantity 2752
introduction：4.1Shimadzu energy dispersion typeXFluorescence spectrometerEDX-720 Principle of instrument：XGamma ray fluorescence analysis（XRF）Is detected byXIts emitted by a ray tubeXSecondary radiation produced when a sample is irradiatedXray（XGamma fluorescence）Analytical method of。Using semiconductor detectorsXX-ray fluorescence analysis devices are generally referred to as energy-dispersiveXX-ray fluorescence analyzer。 EDX-720Main technical index Measurement principleXGamma ray fluorescence analysis（XRF）Determination method Energy dispersion type determination range11Na－92UMaximum sample shape300mm
2015-01-24 Reading quantity 2904
introduction：one、Imported 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。]Vibration of Imported 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。]Vibration against inlet bearing[Imported bearing:Simply put, imported bearing agents refer to those engaged in an imported bearing brand
2015-01-24 Reading quantity 1465
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