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Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 5: 625 - 632

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.05.005

Academic article

Study on The Influence of Thermal Insulation Coating Structure on The Thermal Protection Performance of Fuze

  • LI Wenmei , 1 ,
  • WANG Jiong , 1, * ,
  • WU Yanxuan 2 ,
  • ZHAI Rong 3
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  • 1 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • 2 School of Mechatronic Engineering, Beijing Institute of Technology, Beijing 100081, China
  • 3 Science and Technology on Electromechanical Dynamic Control Laboratory, Xi’an 710065, Shaanxi, China

Received date: 2024-09-09

  Online published: 2025-11-28

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Abstract

In order to study the effect of heat insulation coating structure on the thermal protection performance of fuzes in different thermal environments,the typical large-caliber grenade fuze of JHX-1 charge was taken as the research object,and the slow burning and fast burning simulation of fuzes with no heat insulation coating structure,single heat insulation coating structure and composite heat insulation coating structure were carried out.The simulation results show that the design of the thermal insulation coating structure can prolong the response time of the fuze under both fast and slow burning conditions,and the delay effect is the most obvious in the fast burning environment,the delay effect is 69.1%.Under the same thermal environment and the same thickness of the overall thermal insulation coating of the fuze,the delay effect of the single-coating thermal insulation structure on the response time is better than that of the composite coating thermal insulation structure,and the thermal protection performance is the best when the shell is coated with flame retardant thermal insulation material,and the delay effect is 51.6% under the fast burning ring.According to the comprehensive analysis,the inner/outer composite thermal insulation coating structure can be considered for the fuze body with limited coating thickness,and the thermal protection effect of the composite coating structure can be improved by increasing the coating thickness of the outer material on the basis of meeting the functional requirements of the fuze.

Key words： thermal insulation coating; baking simulation; insensitive fuze; thermal protection

Cite this article

LI Wenmei , WANG Jiong , WU Yanxuan , ZHAI Rong . Study on The Influence of Thermal Insulation Coating Structure on The Thermal Protection Performance of Fuze[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(5) : 625 -632 . DOI: 10.15892/j.cnki.djzdxb.2025.05.005

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