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introduction：A casting method that uses clay as the main material to make a mold to produce castings。Clay has a strong bond when added with proper moisture，Add some rice husks、Awn of rice、Horse manure、chaff，Shade-dried or dried，That is, it becomes a casting mold with exhale pores and high hardness。The clay on the clay surface is fine and even，The texture is thicker in the middle，Some also add some sand、Cylinder slag、brickbat。Clay casting of simple castings，A mold can be used several times to dozens of times，It is a semi-permanent cast。Mud casting is the earliest casting technology used in China，Ancient name of the clay model，Also called Tao Fan。B.c.16～before11The century has been cast in clay
2015-03-25 Reading quantity 2783
introduction： Working principle: GPQSeries air-flow spray dryer is gas-liquid two-phase parallel flow drying equipment。two-fluid（Or three fluids, etc）Nozzle atomizer，Use compressed air（vapors）Subsonic or supersonic speed difference with liquid，The conventional and certain viscous materials are atomized into fine droplets，Rapid heat exchange with dry heat medium，Dry to powder in a very short time。 Performance characteristics: 1.attainability
2015-03-25 Reading quantity 2892
introduction： Stamping is done by press and die on the sheet、strip、External forces are applied to pipes and profiles，To cause plastic deformation or separation，To obtain the desired shape and size of the workpiece(Stamping part)The forming processing method。Stamping and forging are both plastic processes(Or pressure processing)，Collectively called forging。The pressed billets are mainly hot and cold rolled steel plates and steel strips。 All the steel in the world，There are60～70%Sheet metal，Most of them are stamped into finished products。Car body、Base plate、Fuel tank、Radiator plate，Boiler drum、Shell of vessel、Electric machine、Electrical core silicon steel sheets and so on
2015-03-25 Reading quantity 2782
introduction： GB/T13983-92 Instrument and meter Basic term GB/T15464-95 General technical conditions for instrument packaging JB/T5218-91 Instrument coordination with color JB/T5471-91 Instrument knobs Model naming method JB/T6182-92 Instrument reliability design review JB/T6183-92 Specification of instrument reliability requirements and assessment methods JB/T6214-92 Instrument reliability verification test and measurement test(exponent
2015-03-25 Reading quantity 2776
introduction：The clutch is located in the flywheel housing between the engine and the gearbox，Fasten the clutch assembly to the rear plane of the flywheel with screws，The output shaft of the clutch is the input shaft of the gearbox。While the car is moving，The driver can depress or release the clutch pedal as needed，Temporarily detach and gradually engage the engine and gearbox，To cut off or transmit power from the engine to the transmission。 Working principle of the clutch The friction between the contact surface of the active part and the driven part of the clutch，Or use liquid as a transmission medium(Hydraulic coupler)，Or a magnetic drive(Electromagnetic clutch)To transmit torque，Make both
2015-03-25 Reading quantity 2775
introduction：(1)Check the safety device of the equipment and the cleanliness of the work site before starting work,Ensure that the device is normal before operating。 (2)It is forbidden to bring all kinds of non-work related items on the workbench。 (3)Before starting equipment or simulating a test run,The siren should be sounded first,And notify dispatcher to broadcast over loudspeakers,Contact the adjuster site for confirmation，Start the device when no one is around。 (4)The rolling state should be observed at all times during production,Activate the alarm when an anomaly is detected,Parking should be taken if necessary,Emergency stop and other measures.Avoid human machine injury。 (5)Operators should always pay attention to the surrounding electric welding and other light caused by the shearing machine
2015-03-24 Reading quantity 1529
introduction：wear Friction bodies contact surfaces of materials in relative motion due to mechanical action﹐The phenomenon of constant wear and tear caused by occasional chemical action。It is an important part of tribology research﹐It is also one of the main reasons for the failure of mechanical parts。But there is a side to wear and tear﹐Such as the fitting of a newly assembled machine﹐Use wear and tear to fit in。Wear is generally classified as adhesive wear﹑Abrasive wear﹑Surface fatigue wear and corrosion wear4Species main type﹐There is also fretting wear﹑Impact wear﹑Erosion and aeration。 For wear﹐And wear and friction﹑Some relationship between wear and material﹐People talk
2015-03-24 Reading quantity 2779
introduction：1）、KOYOImported 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。]One of the causes of early damage is improper lubrication Although it can be installed“maintenance-free”Rubber seal ofKOYOImported 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。]，however
2015-03-24 Reading quantity 1465
introduction：jichuang daogui Machine tool guide machine tool guideways In order to make the moving parts of the machine tool move according to the specified trajectory，And support its gravity and the load on the orbit。In the form of movement，There are two types of linear motion guide and circular motion guide，The former such as lathes and gantry planer bed guide rails，The latter such as vertical lathe and gear hobbing machine table rail。Machine guide rail is divided into sliding guide rail and rolling guide rail according to the frictional properties between moving surfaces。In the former, pure fluid friction is called hydrostatic guide or aerostatic guide。
2015-03-24 Reading quantity 2875
introduction： Circulating air dryer： It is suitable for drying and dewatering all kinds of powder and granular materials containing surface water，Recovery of usable exhaust waste heat，The exhaust gas of low temperature and high humidity is close to saturation，Energy saving than other air drying15-30%，Thermal efficiency is75-85%，And the system has a unique cyclone dryer，The drying time is effectively increased，Ensure that the final moisture of the product is within the safety limit，Suitable for some products with special dehydration process。 peculiarity： 1．Short drying time、Fast dehydration、Generally in0.5-3seconds。hot
2015-03-24 Reading quantity 2790
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