금강 토사에 의한 SLURRY 마멸

Slurry Wear of Sand from the Kum River

  • 우창기 (인천대 기계공학과) ;
  • 조견식 (인천대 대학원 기계공학과) ;
  • 김대업 (인천대 대학원 기계공학과) ;
  • 강동명 (유한대학 금형설계학과) ;
  • 이하성 (유한대학 금형설계학과)
  • 발행 : 2001.04.01

초록

This research is about slurry wear of SM45C and SUS304, which using standard sand and KUM river sand. The results are as follows ; 1. Mass loss rates of both standard sand and KUM river sand were linearly increased as increasement of time and velocity. 2. The average diameter of sand from relatively, less wear rate and portion of larger particles. 3. Wear resistance was linear with time and velocity of liquid jet regardless of type of sand. Also it was able to evaluate with the formula, HV2/E calibrated with n, the velocity index. 4. The wear surface in liquid jet experiment was smooth. The maximum wear depth was observed at the location, 2~4mm apart from the center in the condition of 90$^{\circ}$of collision angle 6mm of nozzle diameter, and 20mm of collision distance. The sectional shape in radial appeared as 'W' shape.

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