introduction:1. normalizing:Heat steel or steel parts to critical pointAC3orACMThe proper temperature above is kept for a certain time after cooling in the air,The bearing with pearlitic structure is obtained[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。]Steel heat treatment technology。 2. annealannealing:Heat the hypoeutectoid steel workpiece toAC3
2015-02-22 Reading quantity 1442
introduction: KOYObearing[KOYObearing:kOYOBearings are generally required to bear large loads,Often without a cage,Instead, fill the inner and outer raceways with rolling elements。And most small and medium-sizedKOYORolling bearings are equipped with retainers。 inKOYOBearing in the processing process,The outer ring of the bearing、Inner ring、How do the roller and cage fit together。]As the main components of the locomotive,Especially traction motors、Axle box bearing,Its function plays an important role in safe transportation,When the locomotive is running on line,In case of bearing failure,will
2015-02-22 Reading quantity 1551
introduction:20century70-80age,There has been a great development of reducer technology in the world,And closely combined with the development of new technological revolution。General purpose reducer The development trend is as follows: ①High level、High performance。Cylindrical gears are generally carburized and quenched、Gear grinding,Increase of carrying capacity4More than ,Small size、Light weight、Low noise、High efficiency、High reliability。 ②Modular design。The basic parameter adopts the priority number,dimension In order,The parts have strong versatility and interchangeability,The series is easy to expand and renovate,It is beneficial to organize mass production and reduce cost。 ③
2015-02-22 Reading quantity 2783
introduction: Driving precautions for electric forklift under special conditions 1、The use of elevators and the operation of loading stations:If there is sufficient carrying capacity,Does not affect the operating parts of the vehicle,With the consent of the user of the vehicle,Then the elevators and loading stations can be used for vehicle transportation。The driver of the electric forklift must personally confirm the safety before entering the elevator or loading platform。When the vehicle enters the elevator, the cargo must be placed in front and occupy a proper position,So it doesnt touch the walls around the elevator。When people and vehicles ride together in an elevator,Must be safely in vehicle
2015-02-22 Reading quantity 2896
introduction:Types of manual forklifts Electric hydraulic pallet truck:Electric walking,Hydraulic lifting;Light weight、Low body、Light handling、Have a broad vision;The frame design is robust,Strong bearing capacity;Make a smooth start,Electromagnetic braking of motor output shaft;Large capacity traction battery,Make sure you work long hours。 Fully electric pallet moving vehicle:Electric vehicle,Electric lift;Light handling,Have a broad vision;Strong frame,Strong bearing capacity;Stepless speed change,Running balance;Large capacity traction battery,Make sure you work long hours;The model comes withCBY-2.0 CBY-2.5 CBY-3.0;Max
2015-02-22 Reading quantity 2789
introduction: FAGbearing[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。]Prefix code(prefix)And its meaning RPlace directly before the bearing base number,The rest of the prefix code is separated from the base code by a small dot。 GS—Thrust cylindrical roller bearing ring。case:GS.81112 K–-Assembly of rolling body and cage。case::Combination of thrust cylindrical roller and cageK.81108。 FAGbearing[FAGbearing:
2015-02-22 Reading quantity 1446
introduction: 1System composition of liquid chromatograph、Working principle The liquid chromatograph system consists of a reservoir、pump、sampler、Chromatographic column、detector、The recorder is composed of several parts。The mobile phase in the reservoir is pumped into the system under high pressure,The sample solution passes through the injector into the mobile phase,Loaded into the column by mobile phase(Stationary phase)Within the,Because each component in the sample solution has different partition coefficients in the two phases,When in relative motion in two phases,After repeated repeated adsorption-
2015-02-22 Reading quantity 2874
introduction: Product dents are usually due to insufficient forces on the product、The material filling mold is insufficient and the product design is unreasonable,Dents often appear in thick walls that are close to thin walls。The porosity is caused by insufficient plastic in the mold cavity,Outer ring plastic cooling cure,The inner plastic shrinks to form a vacuum。Mostly because the hygroscopic material is not dried well,And residual monomers and other compounds in the material caused by。 Determine the cause of stomata,Just observe whether the bubbles of plastic products appear instantaneously when the mold is opened or after cooling。If it appears instantly when the mold is opened,Its mostly a material problem,If it appears after cooling, it is a mold
2015-02-22 Reading quantity 2879
introduction: Solution of supercritical water oxidation technology and its application.SCWOIt is a high temperature and high pressure technology,Using water under supercritical conditions(Pc=220.55bar,Tc=373.976℃)The characteristic of,Treatment of organic compounds and toxic wastes and organic reaction research(E.g. selective oxidation)。By supercritical oxidation reaction,CTranslate intoCO2,HTranslate intoH2O,organicClConverted to chloride ions,Nitro compounds are converted to nitrates,SConvert to sulfur
2015-02-22 Reading quantity 2865
introduction: Aim the measured length with non-contact optical positioning method﹐Precision length measuring tool mainly used to measure the linear distance。 The comparator generally uses a measuring microscope or photoelectric microscope as a aiming and positioning component﹐The scale of the precision wire scale or the wavelength of the light wave is taken as the known length﹐The measurement value is determined by comparing with the measured length。The comparator is mainly used to verify the line gauge﹐Measure line spacing and physics on the board﹑Spectral line distances of light on astronomical photographic plates﹐Can also be used to measure aperture。 The comparator is divided into two categories according to the structure layout: vertical and horizontal
2015-02-22 Reading quantity 2805