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introduction：1.Pig iron（homeGB）: HT200→Gray iron,Tensile strength200N/mm2,The cow/Square millimeter. ZG200→Cast carbon steel, ,Tensile strength200N/mm2,The cow/Square millimeter. T8~T10→Carbon steel,Carbon content0.8%~1%. 16Mn→Low alloy steel, Carbon content0.12%~0.2%,Manganese content1.2%~1.6%. 20CrMnTi→Alloy structural steel(Steel for hard gear),Heat treatment;880o~900oCOil cooling,200oCtemper. Cr12
2015-01-14 Reading quantity 2900
introduction：There are three ways to reduce thisTIMKENbearing[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。]Vibration of Remove critical excitation vibration from the application；Suppression of critical excitation vibration between excitation and resonance components；Change the stiffness of the structure，To change the critical frequency。 normal，The worlds top bearings such as deep groove ball bearings do not occur
2015-01-14 Reading quantity 1463
introduction： A self-propelled loading machine that loads bulk materials onto vehicles or other equipment。Loaders are widely used in mines﹑Harbor﹑station﹑Construction site﹑Places like storage yards and warehouses﹐Working ability is30～300Tons of/when。According to the characteristics of the working process, it is divided into intermittent action and continuous action。Intermittent action type has a single bucket loader。Continuous action loader according to its working device(See picture Working device of continuous action loader )Feature naming。 Crab rake loader﹕The working device consists of a pair of rotating disks and two four-link mechanisms similar to crab rakes。The crab rake moves in a regular plane curve﹐Alternate general
2015-01-14 Reading quantity 2798
introduction：Steels used to make springs or spring-like parts。Has a high elastic limit﹑Fatigue limit(Especially the notch fatigue limit)And some impact toughness and plasticity﹐Mainly on impact﹑Vibration is used under conditions of isodynamic load or long-term periodic alternating stress。Therefore, the spring working in various states should have good surface quality and high fatigue resistance。In the process performance﹐Subject to quenching﹑Tempered spring steel﹐Should have a certain degree of hardenability﹐Hard to decarburize﹐Low heat sensitivity and high plasticity﹐Easy to form in hot state。The steel wire used for making small size springs should have uniform hardness and certain plasticity。
2015-01-14 Reading quantity 1456
introduction： Fluidized bed dryer: Company in large fluidized bed dryers，It is the leading level in China in terms of the removal of middle and high temperature inorganic salt crystal water and the drying of large amount of slag。For several years to provide users with a large number of equipment and perfect supporting services，Widely used in chemical industry，mining，medicine，food，fodder，Industrial and urban sludge treatment and other industries。 Principles of fluidized bed technology: In a fluidized bed unit，After accurate calculation, the hot gas is evenly distributed through the pressure equalizing air distributor plate of the fluidized bed，Pass through the material inside the bed，The material particles are suspended in the air flow，Form a fluid state。The shape
2015-01-14 Reading quantity 2836
introduction：We are now using the silver rail on many occasions，Its used in a lot of machinery，Therefore, failure type problems will often appear later，Such problems are common，If the bead on the silver slide falls out，There are also cases of improper use before use，The bead of the rail slide comes out on its own，So how to avoid this situation，Lets take a look at her installation method。
2015-01-14 Reading quantity 15191
introduction： Wall thickness As much as needed，As little as possible In the design of engineering plastic parts，Experience shows that，There are some design points to always consider，These points can therefore be distilled into simple design guidelines。One of these points is design。It has important influence on the quality of parts。 Impact on standards for special parts Changing a part，The following major performance will have a significant impact： Part weight Flow length available in molding Production cycle of parts Rigidity of molded parts allowance Part quality，As smooth as the surface
2015-01-14 Reading quantity 2836
introduction：peel From the Damage state:SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]When rotating under load，Inner ring、The raceway surface or rolling surface of the outer ring shows a fishscale peeling phenomenon due to rolling fatigue。 The original Due to the:Excessive load。Poor installation（nonlinearity）
2015-01-14 Reading quantity 1459
introduction：1.Physical and chemical properties of materials--form、Water content、Aqueous property、Water of crystallization、granularity、Unit weight、stickiness、Heat sensitivity、Softening point、Phase change point、thixotropy、Toxicity、corrosivity、Peculiar smell、ignitability、Explosion hazard、Electrostatic property、Air permeability、aggregability、Breakability of crystals or particles... 2.Drying characteristics of materials--Drying curve under selected drying conditions、Critical moisture content、Equilibrium moisture content。 3.Drying yield requirements and future planning。 4.The effect of commodity value and drying effect on material。Such as product moisture、contaminate、temperature、wear、atomization、smash
2015-01-14 Reading quantity 2800
introduction： Defects caused by improper heating can be divided into：①Defects caused by changes in the histochemical state of the outer layer of billet due to the influence of the medium，As oxidized、decarburization、Carburizing and sulfurizing、copperizing。②Defects caused by abnormal changes in internal organizational structure，superheat、Overburn and underheat。③Because the temperature is unevenly distributed inside the blank，Cause internal stress(Such as temperature stress、Structural stress)Excessive billet cracking and so on。Some of these common defects are described below，The rest are visible related instances。 1.decarburization Decarbonization is the oxidation of carbon in the surface layer of a metal at high temperatures，Make list
2015-01-14 Reading quantity 2797
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