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    精密洛氏硬度計
ROCKWELL TYPE HARDNESS TESTER
   
 

FEATURES
  
Rockwell Hardness Tester is a simple but ruggedly constructed machine available for quick and easy testing of all ranges of material hardness. The minute surface impression can be used to test finished goods.
  The Rockwell Hardness Number is derived from the net increase in depth of impression as the load on a penetrator is increased from a fixed minimum load to a higher load and then returned to the minimum load. The hardness number is read directly on the dial. A test of a 10kg minor load penetrating an indenter on the surface of a specimen is performed.
  The penetrator for the Rockwell Test includes steel balls of several specified diameters and a diamond-spherical penetrator having an included angle of 120-deg, with a spherical tip having a radius of 0.2mm.
  The test load (major load) is customary 60kg or 100kg when a steel ball is used as a penetrator, but other loads may be used when necessary. Usually a 150kg is used when a diamond, spherical penetrator is employed. The ball penetrator is 1/16" in diameter mormally,but other pentrators of larger diameter such as 1/8", 1/4" or 1/2" may be employed for soft metal. A variety of loads and penetrators is provided. Experience decides the best combination for use.

   

SPECIFICATIONS:

      Model No. ....................................................................EHT-3R

  • Load range ................................60, 100, 150kgf (132, 220, 330lbs.)
  • Initial load range ....................................................10kgf (220lbs.)
  • Testing height .....................................................230m/m (8-1/2")
  • Depth from center to column ..................................140m/m (5-1/2")
  • Overall height ..........................................................660m/m (26")
  • Length .............................................................490m/m (19-1/4")
  • Width ..............................................................240m/m (9-7/16")
  • Weight (approx) ....................................................68kgs (150lbs)

 

STANDARD ACCESSORIES:

  • Diamond penetrator .....................................................1 pc.
  • 1/16" Steel ball penetrator ............................................1 pc.
  • 1/16" Replacement steel balls .....................................10 pcs.
  • Large flat anvil ( Ø 125 m/m) .........................................1 pc.
  • Small flat anvil ( Ø 62 m/m) ...........................................1 pc.
  • Large V-block anvil ......................................................1 pc.
  • Small V-block anvil .......................................................1 pc.
  • "B" scale hardness test block ..........................................1 pc.
  • "C" scale hardness test block ..........................................1 pc.
  • 3 weights (60-100-150kgs) .........................................1 each
  • Level adjusting leg ......................................................3 pcs.
  • Deluxe aluminum case for accessories ..............................1 pc.
  • Dustproof plastic cover .................................................1 pc.
  • Operation manual .........................................................1 pc.
     
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