Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Verification of mechanical failure mode through corrosion test of a pump for soil sterilizer injection

  • Han-Ju Yoo (Smart Agriculture Innovation Center, Kyungpook National University) ;
  • Jooseon Oh (Department of Convergence Biosystems Engineering, Chonnam National University) ;
  • Sung-Bo Shim (Smart Agriculture Innovation Center, Kyungpook National University)
  • Received : 2023.09.20
  • Accepted : 2023.11.14
  • Published : 2023.12.01
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Abstract

Deteriorating soil physical properties and increasing soil pathogens due to the continuous cultivation of field crops are the leading causes of productivity deterioration. Crop rotation, soil heat treatment, and chemical control are used as pest control methods; however, each has limitations in wide application to domestic agriculture. In particular, chemical control requires improvement due to direct exposure to sterilizing solution, odor, and high-intensity work. To improve the overall domestic agricultural environment, the problems of time and cost, such as field maintenance and cultivation scale, must be addressed; therefore, mechanization technology for chemical control must be secured to derive improvement effects in a short period. Most related studies are focused on the control effect of the DMDS (dimethyl disulfide) sterilizer, and research on the performance of the sterilization spray device has been conducted after its introduction in Korea, but research on the corrosion suitability of the material is lacking. This study conducted a corrosion test to secure the corrosion resistance of a soil sterilizer injection pump, and a mechanical failure mode by corrosion by the material was established. The corrosion test comprised operation and neglect tests in which the sterilizing solution was circulated in the pump and remained in the pump, respectively. As a result of the corrosion test, damage occurred due to the weakening of the mechanical strength of the graphite material, and corrosion resistance to aluminum, stainless steel, fluororubber, and PPS (polyphenylene sulfide) materials was confirmed.

Keywords

Acknowledgement

본 연구는 농림축산식품부와 농림식품기술기획평가원의 "토양 소독제 지중 살포 기계화 기술 산업화 연구(3/3)"의 지원을 받아 수행된 연구 결과입니다. (No. 120075-3) 본 연구는 농림축산식품부와 농림식품기술기획평가원의 "전기구동 사료작물 수확기 플랫폼 설계 검증 및 최적화(2/4)"의 지원을 받아 수행된 연구 결과입니다. (No. 322045-04)

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