Batch Smart quick quote，
Export quotation with one click，
One-click order
Monday to Saturday8:30-18:00
introduction：Test for the determination of stress relaxation。Stress relaxation test is a kind of mechanical property test of materials。Stress relaxation occurs very slowly at room temperature，But as the temperature rises it becomes significant，Therefore, it must be paid attention to in the mechanical design。 Generally, cylindrical specimens are used for stress relaxation tests，Tensile loading is performed at a certain temperature，Later as time goes on，Part of the load is removed by the automatic load shedding mechanism to keep the total deformation constant，The stress reduction over time is measured，The relaxation curve can be drawn。The relaxation test can also be carried out with a ring specimen with a half ring of equal strength，The change in the width of the annular sample gap is measured
2015-01-16 Reading quantity 2795
introduction： Make use of electronic computers at high speeds﹑accuracy﹑The ability to process large amounts of data helps managers handle various business tasks。Its modern management(See management engineering)Important means of。Electronic computers have a large storage capacity﹑Processing speed is fast and accurate﹑Strong communication transmission ability and can be networked and other advantages﹐It can solve many management tasks that are difficult to complete in time by manpower alone﹐For example, an inventory of tens of thousands of models and specifications of materials and components can be stored on disk or tape﹐At any time according to the order status﹑
2015-01-16 Reading quantity 2798
introduction：putong chechuang General lathe engine lathe Energy pairing axis、disc、Ring and other types of workpiece for a variety of processes of the horizontal lathe。Ordinary lathes are often used to process the inner and outer rotating surfaces of workpieces、Face and various internal and external threads，Use appropriate tools and accessories，Drilling is also possible、reaming、Tapping and knurling, etc。General lathe（See picture[Structure of ordinary lathe]）The process range is wide，The adjustment range of machine tool spindle speed and feed is large，The process preparation and adjustment work before processing is less；But the degree of automation is low，Machining precision of the workpiece
2015-01-16 Reading quantity 2806
introduction： Power operation，Start at low speed with no load，Slowly progress to rated operation under specified conditions。The inspection items in the test run are，If there is any abnormal noise、Cylindrical roller 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。]Change of temperature、Leakage or discoloration of the smoothing agent, etc。If an anomaly is found，Immediate response
2015-01-16 Reading quantity 1553
introduction：In the use of vehicles，There are often oil leakage failures，It will directly affect the technical performance of the car，Lead oil、Waste of fuel，Power consumption，Affects the cleanliness of the car，Cause environmental pollution。Due to oil spill、The oil inside the machine is reduced，Lead to poor lubrication of parts、undercooling，It will cause early damage to the parts，Even leave a potential accident。 one、The main cause of oil leakage in common vehicles 1.Product quality、Poor material or workmanship；There are problems with the structural design。 2.Improper assembly speed，The mating surface is not clean，Gasket failure、displacement
2015-01-16 Reading quantity 2831
introduction： 1. Oil bath lubrication Oil bath lubrication is the most common method of lubrication，Low fit、Moderate speedFAGbearing[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。]Lubrication of。The method is toFAGbearing[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。]Part of it is immersed in the tank，Lubricating oil by rotationFAGbearing[FAGbearing:Main shaft bearing Yes
2015-01-16 Reading quantity 1520
introduction：TIMKENImported 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。]Whether the installation is correct，Direct impactTIMKENImported 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。]Accuracy when used、Life and performance。therefore，Design and assembly
2015-01-16 Reading quantity 1679
introduction： one、Measure the nominal resistance valueRt Use a multimeter to measureNTCThe method of measuring thermistors is the same as that of measuring ordinary fixed resistors，At onceNTCThe nominal resistance value of the thermistor can be measured directly by selecting a suitable electric barrierRtActual value of。DaninNTCThermistors are very sensitive to temperature，Therefore, the following points should be noted when testing： 1、By nominal resistance valueRtThe definition of，This value is the manufacturers ambient temperature25℃When measured。So use a multimeter to measureRtwhen，The ambient temperature should also be close25℃Carry out at...，To ensure the reliability of the test。
2015-01-16 Reading quantity 2908
introduction： one、Structural design of molded parts 1．Cavity structure form a. Monolithic construction，Suitable for cavity with simple shape and easy processing。 b. Integral embedded，Can save mold material，Reduce cost。 c. Local mottling type，It is used when local processing is difficult。 d. Four-wall combination type，For larger sizes，A mold easily deformed by heat treatment。 2． The structure of the core a. unitary，Simple shape，The core is integrated with the template。 b. Combined type，Start from saving materials，Immediate utilization
2015-01-16 Reading quantity 2802
introduction： The main factor used for adjustment is installation，Use and maintenance，Maintenance and repair，And meet the technical requirements。According to double row deep groove ball 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。]Install，Use，upkeep，Maintenance of technical requirements of operationKOYOBearing contact load，speed，temperature，Vibration，Noise and lubrication condition monitoring and inspection，
2015-01-16 Reading quantity 1470
Complete category
Save worry and effort，Buy all at one stop
One-to-one customer service
Selection inquiry，Fast response
Delivery guarantee
Multi-position straight hair，No worries about delivery
Source of genuine goods
Genuine guarantee，Honest service
Source of genuine goods
Genuine guarantee，Honest service
Automatic parts one-stop procurement platform
Working hours：Monday to Saturday 8:30-18:00
008618117444109
Official wechat public account
Order for goods/Information at hand
