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  • Posted: 04/11/2014 04:04:53  Clicks: 1656
      I. The operating requirements of transmission gear Gear is one of the most important parts of machines and equipments. To a certain extent, the precision of gear affects the quality of the whole machine or equipment. Because tooth shapes are relatively complex and have more parameters, the accuracy evaluat...
  • Posted: 04/14/2014 04:04:58  Clicks: 8437
    I. JIS Standard 1. JIS B1701-1-1999  Cylindrical gear used for general and heavy machinery. Part1: Standard basic rack tooth profile.  2. JIS B1701-2-1999  Cylindrical gear used for general and heavy machinery. Part2: Tooth modules 3. JIS B0102-1999  Vocabulary of gear terms -- Defi...
  • Posted: 04/18/2014 05:04:21  Clicks: 4631
    1. DIN 3996-1998  Calculation of load capacity of cylindrical worm gear pairs with shaft angle SIGMA = 90 Degree   2. DIN EN 3676-1998  Aerospace series; Inserts, thin wall, self-locking; Design standard  3. DIN EN 3298-1998  Aerospace series; Inserts, thin wall, self-locking; Removal pro...
  • Posted: 04/22/2014 09:04:05  Clicks: 5483
    1. NF E37-601/A1-2004  Thermal turbines for industrial applications (steam turbines, gas expansion turbines). General requirements; Amendment of item one. data sheets for thermal turbines for industrial applications.  2 .NF E23-030-1-2002  Calculation of load capacity of spur and helical gears. Part ...
  • Posted: 05/05/2014 10:05:10  Clicks: 1542
    I. Friedrich Wilhelm Lorenz Friedrich Wilhelm Lorenz (1842–1924), the founder of the Lorenz Company and an inventor and successful entrepreneur.  He was interested in and concentrated on the production of double-enveloping worm-gear drives and in 1891 invented methods to generate the worm and the gear ...
  • Posted: 05/16/2014 04:05:18  Clicks: 3379
    AGMA904  Metric Usage AGMA9002  Bores and Keyways for Flexible Couplings AGMA9000  Flexible Couplings - Potential Unbalance Classification AGMA6025  Sound for Enclosed Helical, Herringbone and Spiral Bevel Gear Drives AGMA6023  Design Manual for Enclosed Epicyclic Gear Drives AGMA60...
  • Posted: 07/02/2014 11:07:09  Clicks: 1593
    In order to avoid the reducer failing the factory test, intermittent high noise should be reduced. A low noise reducer is 72.3 Db (A) tested by ND6 precision sound level meter, which meets the requirements of factory. While high noise reducers with 82.5 dB (A) can’t pass factory tests. It is indispensable that ...
  • Posted: 07/06/2014 11:07:02  Clicks: 1454
    1. The choice of hydraulic valves by operation ways Hydraulic valves can be devided into manual control, mechanical control, hydraulic control, electric control types etc. Choose an adaptive hydraulic valve according to the control requirements of system and the configuration of electrical system. For small and unc...
  • Posted: 10/13/2014 02:10:59  Clicks: 2720
    Abstract: The microstructures and properties of A356 alloy produced using expendable pattern shell casting process with vacuum and low-pressure (EPSC-VL) are compared with those of lost foam casting (LFC) process by OM and SEM techniques. The results show that microstructure of A356 alloy produced by EPSC-VL is finer...
  • Posted: 10/24/2014 09:10:12  Clicks: 2350
    Abstract: Effect of investment casting on the microstructure and mechanical properties of ZL201A alloy at as-cast, solid solution and aged state were analyzed, and compared with hose in sand mold casting and in metal mould casting. The experimental results show that the grain size of investment casting samples is coa...
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