本文介绍了涂层银絲练调节复合固体推进剂燃速的基本原理。在聚氨酯推进剂中应用涂层银絲可使其燃速在10～110毫米/秒范围间任意调节。这不仅为改变复合固体推进剂的燃速,扩大其应用范围提供了有效途径,也为各种特殊要求的装药形式提供了方便。 This paper describes the basic principle of coating silver wire to regulate the burning rate of composite solid propellant. The use of coated silver wire in polyurethane propellants allows the burning rate to be arbitrarily adjusted from 10 to 110 mm / sec. This not only provides an effective way to change the burning rate of composite solid propellant and expand its application range, but also provides convenience for various special requirements of the form of charge.