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introduction： one、Bid acquisition situation： idtorIDTRepresentation equivalent adoption；eqvorMODIndicates equivalent or modified adoption；neqIndicates non-equivalent adoption。 two、National standard GB/T 786.1－1993（2001*） Hydropneumatic graphic symbol eqv ISO 1219-1:1991 GB/T 2346－2003 Fluid transmission systems and components Nominal pressure series ISO 294
2015-01-26 Reading quantity 2916
introduction：To achieve a particularly low output speed，It can be achieved by connecting two gear reducers。When using this transmission scheme，The power of the configurable motor must depend on the ultimate output torque of the reducer，The output torque of the reducer cannot be calculated by the motor power。 inSEWWhen the transmission is installed on the output shaft，Hammering is not allowed，Assembly fixtures and internal threads at shaft ends are usually used，Press the drive in with bolts，Otherwise, it may cause damage to the internal parts of the reducer。It is best not to use rigid fixed coupling，This type of coupling is improperly installed，Can cause unnecessary external load，axial
2015-01-26 Reading quantity 2794
introduction： Maybe everyone is not very understanding of sheet metal processing。Its actually quite simple。The sheet metal Im talking about is what I came into contact with。 Processing equipmentAMADASeries of machines。： 1． Laser cutting。 2． 2。CNC turret punch。 。CNC turret punch is to have a special programming。Its like a processing center。Theres software for that。 AP100 （AMADAThe companys own programming software）。PROCAM （The United States is a soft
2015-01-26 Reading quantity 2801
introduction：1.Install usually、Radial bearing with inseparable outer ring[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 inner ring and shaft usually adopt a tight fit；The outer ring and the seat hole are loosely matched。At this time, the bearing can be first pressed on the shaft by pressure，Then the bearing and coaxial together into the bearing seat hole。Soft metal for mounting sleeves when pressing
2015-01-26 Reading quantity 1466
introduction：1、 Excellent high temperature stability：Made of white stone ink and bio-based oil，Carbon deposition and coking tendencies in high temperature applications are greatly reduced（The white semi-solid to solid film is soft，Easy to keep clean）。 2、 Super clean：Helps to eliminate maintenance problems or downtime caused by equipment cleaning due to carbon accumulation，Can also clean the chain contaminated by other poor chain lubricants。 3、 Better protection for devices：Contains special patented ingredients and additives，Excellent wear resistance、rust-proof、Oxidation and corrosion resistance，Prolong the service life of equipment，Reduce maintenance costs。 4、 Energy saving and environmental protection
2015-01-25 Reading quantity 1451
introduction：huitu yongju Drawing tool drawing instrument Tools for drawing geometry and engineering drawings。A wide variety，The following are commonly used in mechanical drawing and other engineering drawing。 A flat rectangular board on which drawing paper is laid for drawing patterns，Its guiding edge should be straight。 The T-square consists of a ruler head and a ruler body，It is mainly used to draw horizontal lines on the drawing board，Or use with triangle plate，Draw straight lines in other directions。 Parallel rule&nb
2015-01-25 Reading quantity 2800
introduction：Wang Wei Zhu Huigang（School of Public Health, Fudan University，Shanghai200032） Abstract:Traditional chlorination of drinking water produces substances such as trihalomethanes，Endanger human health，As a kind of ozone disinfectant with wide application prospect, people pay more and more attention to it。This paper describes the effect of ozonation on drinking water，And the toxicological research progress of the by-products produced in this process，Finally, some suggestions on the research direction of ozone are put forward。 keyword:Ozone disinfection
2015-01-25 Reading quantity 2873
introduction： Engineering principle： The spray dryer is mainly used to atomize the material liquid through the spray device and directly contact with the hot air，Due to its atomized surface area greatly increased，The drying process is completed by the instant evaporation of water in the high temperature air stream。 Application and characteristics： Mainly applicable to solution、emulsion、suspension、Material in paste state，Widely used in chemical industry、Light industry、corpuscle、Food and other industries。 Technical parameter： item SPG
2015-01-25 Reading quantity 2808
introduction：There are two main kinds of vibration motors for vibrating screen，Vertical vibration motor is mainly used in rotary vibration screen，The horizontal vibration motor can be applied to all kinds of vibration screening equipment，The vibrating motor is the most important vibration source of the vibrating screen，Its importance can be imagined。Vibration motor selection of heavyKOYObearing，Can bear a certain axial load，Regardless of mounting orientation，KOYOBearing life is not affected by axial load force。 1.Break downKOYObearing （1）Remove the protective covers at both ends of the vibration motor（Vertical vibration motor without protective cover），Record the centenary value of the excitation force of the eccentric block when it is working，So that it can be restored during installation
2015-01-25 Reading quantity 1562
introduction：GB/T19672-2005Modify and adoptISO14313：1999《Pipeline valves for pipeline delivery systems in the oil and gas industry》/API6D：2002《Pipeline valve》formulated。The standard specifies gate valves for flanged and welded connections、Ball valve、Terms for check valves and plug valves、Structure type and parameters、Order requirement、Technical requirement、Materials、Inspection rule、Test method、Logo and other content。Suitable for nominal pressurePN16~PN420，Nominal sizeDN15~D
2015-01-25 Reading quantity 2898
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