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introduction：Chamber furnace Industrial furnaces with cuboid or cuboid furnaces﹐Also known as box furnace。Chamber furnace is divided into two categories: chamber type flame furnace and chamber type electric furnace﹐The chamber type electric furnace can strictly control the furnace temperature。The combustion device or electric heating element of the chamber furnace is installed on the side wall or at the bottom of the furnace﹐radiate﹑convection﹑Heat transfer methods such as conduction heat the workpiece。The heated workpiece is loaded and removed from the furnace door。Chamber furnace structure is relatively simple﹐Suitable for single piece﹑Heating of small batch workpieces﹐The weight of the workpiece is generally not greater than3Tons of﹐Furnace bottom area is not greater than10Square meter﹐The thermal efficiency is low。 Chamber furnaces can be divided according to use3Kind of。Chamber heating furnace﹕Used for metal forging and welding
2015-01-22 Reading quantity 2798
introduction：Imported 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。]Has a rated life value，This is the parameter that each bearing should have when leaving the factory，However, there are also some external factors that cause the rated life to shorten，Therefore, there is how to effectively extend the use of bearing methods and measures。 1、Bearing installation Whether the bearings are installed correctly，Affect the accuracy、Life span、property。therefore，Design and assembly department forTIMK
2015-01-22 Reading quantity 1464
introduction： 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]The causes of failure are often multi-factorial，All factors affecting the design and manufacturing process are related toSKFbearing[SKFbearing:SKFThe full name is“Sven
2015-01-22 Reading quantity 1465
introduction： High speed bearing[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。]The installation coordination and adjustment： 1.The fit and clearance of high-speed bearings must be based on the requirements of high-precision bearings，And according to high temperature bearing requirements，So when considering its fit and clearance，There are two points to consider： （1）Yuchang
2015-01-22 Reading quantity 1574
introduction： The cause of the traces of the product： 1Marks on the surface of the mold cavity； 2A scratch due to insufficient release slope； 3Scratches on the handling of the product。 Scrub when necessary，Mold cavity surface，Should be used without moisture，Clean cloth for dust, etc，In addition，Gold is necessary when gluing the mold，Soft brass sheets and other metals had to be used。 Scratches due to the lack of demoulding inclination are common，It is especially easy to occur when there is a concave appearance，At this time, the demoulding slope should be very sufficient。 by
2015-01-22 Reading quantity 2844
introduction： 1.segregation Uneven distribution of chemical composition and impurities in steel，segregation。Generally will be higher than the average composition，This is called positive segregation，Below average composition，Its called negative segregation。There is macroscopic segregation，Such as regional segregation and micro segregation，Like dendrite segregation，Segregation between crystals。 Segregation in heavy forgings is closely related to ingot segregation，The degree of segregation of the ingot depends on the steel grade、Ingot mould、Smelting quality and pouring conditions are related。Alloying element、Impurity content、Gases in steel all increase the development of segregation。The bigger the ingot，The higher the pouring temperature，The faster the pouring speed，The more severe the segregation degree。 （1）Regional segregation
2015-01-22 Reading quantity 1568
introduction： one、The implementation method of concurrent engineering The essence of the parallel engineering approach is to require product developers to work together with other people，During the design phase, all factors in the entire life cycle of the product, from concept formation to end-of-life disposal, are considered，Including mass、cost、Schedule sum Users requirement。 As can be seen from the above definition，You want to do concurrent engineering，Efforts must be made in the following aspects： （one）Team working style Concurrent engineering at the beginning of design，People should be involved in the entire life cycle of the product
2015-01-22 Reading quantity 2897
introduction： For diesel locomotives﹑A diesel engine for an internal combustion vehicle or an internal combustion motor vehicle。After the invention of diesel engine﹐Several studies have tried to apply diesel engines to railway traction。1913years﹐Sweden was the first to make it55kilowatt(75horse-power)Diesel engine as the power of the first electric transmission of internal combustion motor car。But in1950Years ago﹐The main traction power of railway rolling stock is still steam locomotives。50age﹐Diesel locomotives have better energy efficiency﹐It can improve the economy of train traction﹐It has been widely used﹐And gradually replaced the steam locomotive。to80Early era﹐Diesel locomotives account for the total number of locomotives in the world2/3。Chinese Yu
2015-01-22 Reading quantity 2908
introduction：qidong luoji yuanjian Pneumatic logic element pneumatic logic element Compressed gas is used as the working medium，The flow direction of the air is changed by the action of the internal movable parts，Thus, the control element realizes the functions of logic and amplification in the pneumatic transmission。Pneumatic logic elements have high pressure cut-off、Slide valve type and high pressure diaphragm type。figure[High-pressure cut-off pneumatic logic element]It is a high pressure cut-off pneumatic logic element。Its basic part is composed of a diaphragm driven spool and seat。whenPWhen the mouth pressure signal is zero，The spring compresses the spool
2015-01-22 Reading quantity 2859
introduction：Injection molds are the parts that give shape and size to plastic during molding。Mold structure although due to plastic variety and properties、The shape and structure of plastic products and the type of injection machine are different and may vary，But the basic structure is the same。The mold mainly consists of pouring system、The forming part and the structure part are composed of three parts。The casting system and the molding parts are the parts in direct contact with the plastic，And varies with plastics and products，Its the most complex of the molds，The biggest change，Parts that require the highest finish and accuracy。 The pouring system refers to the part of the flow path before the plastic enters the cavity from the nozzle，Inclusive main channel、Cold slug well
2015-01-22 Reading quantity 2842
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