摘要
通过不同形状橡胶试样在不同压缩率、不同介质中的压缩永久变形试验,发现在相同条件下,橡胶试样的截面直径或厚度越大,其压缩永久变形就越小;初始压缩率设计越小,压缩永久变形值达到100%所经历的时间就会越短,越易失去弹性;橡胶压缩永久变形在燃油中的变化远远大于在热空气中的变化。橡胶压缩永久变形与其形状、压缩率及介质密切相关,评价橡胶制品压缩永久变形性能需充分考虑制品的具体规格、装配空间、使用环境等因素的影响。
Through compression set test of different shape rubber samples under different compression ratio indifferent medium, finds that in the same conditions the thicker the thickness of sample, the greater the compression set;the smaller the initial compression ratio, the shorter the time which the commpression set reached 100% used; thechange of compression set in the fuel is far greater than in the hot air. Rubber compression set and its shape,compression ratio and medium are closely related. Full consideration should be given to specifications, assembly space,service environment and the Other factors to evaluate compression set of rubber.
出处
《航天制造技术》
2014年第3期2-5,共4页
Aerospace Manufacturing Technology
关键词
氟硅橡胶
压缩永久变形
形状
压缩率
热空气
燃油
评价
fluorosilicone rubber
compression set
shape
compression ratio
hot air
fuel oil
evaluation
