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introduction： Drive inlet 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。]Its a form of the central nervous system in which machines operate，In order to be able to ensure the normal operation of the drive shaft form，The effect of prolonging life in this regard，In use, we should pay attention to the following points； 1、In order to ensure the transmission of imported bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。Into the
2015-04-13 Reading quantity 1454
introduction： SINUMERIK 840DNumerical control system is still the mainstream numerical control system in use today，It is a prominent representative of Siemens CNC products。SINUMERIK 840DProvides many creative technical features，drilling、Various standard cycles of milling and turning processes greatly simplify frequent repetitive machining operations，Even for the most complex、The most precise application，Such as for processing tools and molds5Manufacture of axis coordinate milling machine，SINUMERIK 840DI can do the job。In this paper，Written by 600×5210Fluted roll16Cephalic shell
2015-04-13 Reading quantity 2822
introduction： one.Causes of uneven color： 1Color dispersion is poor 2The thermal stability of the material is insufficient two.Related knowledge 1According to the nature of the material，A tint in a thin sheet form, such as a granular pigment，Having the property of material flowing in a parallel shape，Therefore, there is an irregular directionality in parts such as the gate edge，The result shows a different hue from the rest。Usually no matter what color，It is difficult to remove the uneven color of the fusion，Especially in the multi-gate state。 2Compare products with granular color
2015-04-13 Reading quantity 2793
introduction： SKFThe origin of、intro、SKFChina （1）SKFThe origin of：1905years，The young Swedish textile technician Winquist（Sven Wingquist）Due to bearing on textile machinery[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。]breakdown
2015-04-13 Reading quantity 1587
introduction： 1.Induction heating surface hardening definition：It is the use of a certain method to produce a certain frequency of induced current on the surface of the workpiece，Quickly heat the surface of the part，A heat treatment operation followed by rapid quenching and cooling。 principle：As shown in the figure，Electromagnetic induction generates an induced current of the same frequency, namely eddy current。The distribution of eddy currents on the workpiece section is not uniform，The heart is almost zero，The surface current density is extremely high，call“Skin effect”，The higher the frequency，The surface layer with the highest current density is thinner。Rely on this current and the resistance of the workpiece itself，The workpiece surface is rapidly heated to the quenching temperature，And the heart temperature is still connected
2015-04-13 Reading quantity 1571
introduction：Tempering has a hardness range，Generally in225—297HBamong。45＃If the steel is tempering treatment，That is quenching＋High temperature tempering，The highest hardness should be at297HB，namely31～32HRC!！This is the ideal state。This value may not be reached in general。 45Steel hardening，If water quenching can generally be achieved40----60HRC（Depending on the water temperature and the size of the material)，Oil quenching is generally in30----55HRC among（According to the thickness of the material and the type of quenching oil is different）。 In the heat treatment process does not crack and how much hardness
2015-04-13 Reading quantity 1450
introduction： Casting equipment for the manufacture of cores。Depending on the method of sand compaction during core making﹐Core making machine can be divided into jarring core making machine﹑Core extrusion machine and core shooting machine, etc。 Jolt core making machines are used to produce large hardens on the outside of the core box﹑Medium sand core﹐It can also be used for self-hardening sand cores that harden in core boxes。It compacts the core sand by jolting action。 The core extruder is used for cores with the same cross-section shape。 The core shooter is 20century 50The core-making equipment developed in the decade(figure1 Core shooting machine )。The working principle of the core shooting machine is shown in the figure2 Sand shooting principle ﹐When the sand is shot, the compressed air quickly enters the sand shot barrel﹐Through the sand
2015-04-13 Reading quantity 2788
introduction：Planetary cycloidal pinwheel reducer is an application of planetary transmission principle，The cycloidal needle teeth are engaged，Advanced design，Novel deceleration mechanism。It has a large deceleration ratio，High transmission efficiency，Small size，Light weight，Less trouble，Long life，Smooth and reliable operation，Low noise，Easy disassembly，Easy maintenance，Simple structure，Strong overload capacity，Impact resistance，Low inertia moment，Other characteristics。Above all98Newly developedX8000Series of planetary cycloidal pin gear reducer products，All are manufactured by computer optimization design and the most advanced processing technology at home and abroad，All the indicators have reached the international advanced level of similar products。&nbs
2015-04-13 Reading quantity 2805
introduction： Cold forging system Carbon content（Mass fraction） to0.1Carbon steel Carbon content（Mass fraction） to0.3Carbon steel and carburized steel Carbon content（Mass fraction） to0.5Carbon steel and alloy steel Deformation rate（） p Deformation rate（） p Deformation rate（） p Member positive
2015-04-13 Reading quantity 2783
introduction：The degreasing quality mainly depends on the degreasing temperature、Degreasing time、Mechanical action and degreaser four factors。 1.Degreasing temperature Generally speaking，The higher the temperature，The more thoroughly degreased。This is for three reasons，first，Temperature changes the physical properties of oil pollution，For example, anti-rust grease with a high drop point，Petroleum jelly，paraffin，At low temperatures, even high concentrations of lye are difficult to wash。however，When raising the oil temperature，Their viscosity decreases，It even forms droplets to facilitate removal。second，Promote the chemical reaction，Generally speaking，Every rise in temperature 10 The degree of，
2015-04-13 Reading quantity 1545
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