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研制了一种应用于航空、航天主电源电机磁钢片粘接的胶粘剂,该胶粘剂具有较高的使用温度(耐200℃)、高温强度高和绝缘性好等特点,已成功应用于主电源电机和发动机伺服电机中。该胶粘剂是由A、B双组分组成,其中A组分是以苯酚、甲醛为主剂,氯化锌为催化剂,在乙酸乙酯溶剂中于55～75℃时进行缩合反应而制得的耐热高甲阶酚醛树脂;B组分是以丁腈-40为增韧剂,辅以硫磺、氯化镁和硬脂酸等助剂而制成的。配合相应的磁钢片处理工艺和电机定子、转子的加工工艺,该胶粘剂用于电机中可以取得理想的效果,与传统方法相比,该胶粘剂使电机工作温度降低了30℃左右,明显改善了电机的耐热性和稳定性。
A kind of adhesive which is used in the bonding of the magnetic steel sheet of the main power motor of aviation and aerospace has been developed. The adhesive has the characteristics of high service temperature (200 ℃ resistant), high temperature strength and good insulation, and has been successfully applied to main power supply Motor and engine servo motor. The adhesive is composed of A, B two components, wherein A component is phenol, formaldehyde as the main agent, zinc chloride as catalyst in ethyl acetate solvent at 55 ~ 75 ℃ when the condensation reaction and prepared Heat-resistant high-grade phenolic resin; B component is nitrile-40 as toughening agent, supplemented by sulfur, magnesium chloride and stearic acid and other additives made. With the corresponding magnetic steel processing technology and motor stator and rotor processing technology, the adhesive can be used in the motor can achieve the desired results, compared with the traditional method, the motor makes the motor temperature decreased by about 30 ℃, significantly improved Motor heat resistance and stability.