CAJ | 학술논문

通过调整柔性石墨填料带厚度改变缠绕密度的方法设计了缠绕式垫片的结构，对不同结构的缠绕式垫片进行了常温机械性能的试验研究。找出了柔性石墨厚度变化对缠绕式垫片常温机械性能影响的基本规律，提出了以缠绕密度为参量较好地表征比压、卸载模量、回弹量等压缩回弹特性的公式，并通过对试验数据的回归分析得到了公式中的系数。在确定的结构与制造工艺条件下，获得了符合ASMEB16.20—1993所要求的机械性能。表明在其它结构参数与制造工艺不变的情况下，通过调整柔性石墨填料带厚度改变缠绕密度的方法可以达到调整缠绕式垫片机械性能的目的。
통과조정유성석묵전료대후도개변전요밀도적방법설계료전요식점편적결구，대불동결구적전요식점편진행료상온궤계성능적시험연구。조출료유성석묵후도변화대전요식점편상온궤계성능영향적기본규률，제출료이전요밀도위삼량교호지표정비압、사재모량、회탄량등압축회탄특성적공식，병통과대시험수거적회귀분석득도료공식중적계수。재학정적결구여제조공예조건하，획득료부합ASMEB16.20—1993소요구적궤계성능。표명재기타결구삼수여제조공예불변적정황하，통과조정유성석묵전료대후도개변전요밀도적방법가이체도조정전요식점편궤계성능적목적。
The structure of wound gasket was designed by adjusting thicknessof f lexible graphite gasket band to change winding density. The paper studied mechan ical properties of wound gasket with different structures at room temperature. T he basic law about influence of flexible graphite thickness on mechani cal properties of wound gasket at room temperature was found, A formula with parameter of winding density was been proposed, and it can presen t ratio presure unloading module and resilence very well. The formula coefficien ts were determined by regressive analysis of test data. Under the structure and manufact ure technology given in this paper, the wound gasket can obtain mechanical prope rties required by ASME B16.20-1993. The results show that at the same structur e and manu facture technology it is practical to alter mechanical properties of wou nd gasket by adjusting flexible graphite thickness to change winding density.