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고주파 아크 금속용사 장치의 시공성능 평가에 관한 실험적 연구

An Experimental Study on Construction Efficiency of High-Frequency Arc Metal Spray Machine

  • Jang, Jong-Min (Department of Smart City Engineering, Hanyang University) ;
  • Lee, Han-Seung (Department of Architectural Engineering, Hanyang University ERICA)
  • 투고 : 2020.10.08
  • 심사 : 2020.11.21
  • 발행 : 2020.12.20

초록

아크 금속용사 공법을 활용한 EMP 차폐기술을 개발하기 위하여 국내에서 사용되는 3종류의 금속용사 장치의 시공성능을 평가하였다. MS, KMS, HMS에서 용사금속의 부착량은 각각 58.32%, 64.66%, 87.62%로 나타났다. 또한, 1시간당 시공면적(㎡/h)은 MS가 14.3, KMS가 19.25, HMS가 22.16으로서 나타났으며, HMS공법의 경우 Φ1.6mm의 선재 사용, 용사면적 80mm 형성, 반선속도 18m/min 사용과 함께 금속용사 시공시의 비산량이 대폭 작아졌기 때문으로 판단된다. 따라서, 시공성능 측면에서 HMS공법이 EMP차폐용 아크 금속용사공법으로 가장 적합하다고 판단된다.

The arc thermal metal spraying method (ATMSM) has been used in Korea to improve the electromagnetic pulse (EMP) shielding effect of building and infrastructure by three machines of MS, KMS and HMS (Metal Spray, Korea Metal Spray, High-frequency Meta Spray). The adhesion ability of sprayed metal was found to be 58.32, 64.66 and 87.62% for MS, KMS and HMS, respectively. The metal sprayed area per hour of MS, KMS and HMS was calculated and found to be 14.3, 19.25 and 22.16㎡/h, respectively. The HMS showed the highest metal spray area attributed to the diameter of metal wire i.e. 1.6mm which sprayed 80 mm with 18 m/min. There was minimum loss of metal and the highest efficiency by HMS compared to others. Therefore, it is suggested to use HMS for metal spraying by ATMSM to enhance the EMP shielding effect.

키워드

참고문헌

  1. Min KC. A pressing need of EMP hardening shelter installation for national infrastructures against new nuclear cold war coming. Journal of the Korean institute of building construction. 2016 Sep;16(3):8-16.
  2. Gurevich V. Protection of substation critical equipment against intentional electromagnetic threats. London, UK: Wiley; 2017. 240 p.
  3. Kim KJ, Park SW, Baek JW, Park YJ. A study on the method for judging the EMP protection plan and required level through decision making. Journal of the Korea Institute of Building Construction. 2019 Apr;19(2):193-200. https://doi.org/10.5345/JKIBC.2019.19.2.193
  4. MIL-STD-188-125-1. High-altitude electromagnetic pulse (HEMP) protection for ground-based C4I facilities performing critical, time-urgent missions part 1 fixed facilities. Arlington (VA): Department of Defense Interface Standard; Department of Defense; 1998. 106 p.
  5. Lee HS, Choe HB, Baek IY, Singh JK, Ismail MA. Study on the shielding effectiveness of anarc thermal metal spraying method against an electromagnetic pulse. Materials. 2017 Oct;10(10):1-14. https://doi.org/10.3390/ma10101155
  6. Choi HJ, Park JH, MinTB,JangHO, Lee HS. Anexperimental study on the evaluation of EMP shielding performance of concrete appliedwith ATMSMusing Zn-Al alloywire.Journal of theKorea Institute of Building Construction. 2019 Jun;19(3):209-17. https://doi.org/10.5345/JKIBC.2019.19.3.209
  7. Lee HS, Park JH, Singh JK, Ismail MA. Protection of reinforced concrete structures of waste water treatment reservoirs with stainless steel coating using arc thermal spraying technique in acidified water. Materials. 2016 Apr;9(9):1-20. https://doi.org/10.3390/ma9090753
  8. IEEE-299. IEEE Standardmethod for measuring the effectiveness of electromagnetic shielding enclosures. IEEE Standards Association; 2006. 50 p.
  9. IEC 61000-2-9. Electromagnetic compatibility (EMC) - Part 2: Environment - Section 9: Description of HEMP environment - Radiated disturbance. International Electro-technical Commission; 1996. 49 p.