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          3. 万向铰链型波纹膨胀节可靠性分析
               万向铰链型波纹膨胀节之所以在很多行业中得到广泛应用,除了考虑良好的补偿能力,可靠性更是万向铰链型波纹膨胀节的枢纽。然而,可靠性是通过设计、制造等多个环节来保证的,任?#25105;?#20010;环节的疏忽都会导致波纹膨胀节寿命的?#26723;?#29978;至失效。为了?#26723;?#26412;钱,进?#38477;?#27874;补偿量,许用疲惫寿命?#38477;停?#30001;位移引起的膨胀节子午向弯曲应力越大,综合应力越高,大大?#26723;?#20102;膨胀节的不乱性。
              企业对万向铰链型波纹膨胀节失效原因分析发现,在运行期间的失效主要表现为侵蚀泄漏和失稳变形两?#20013;?#24335;,其中以侵蚀失效居多。从侵蚀失效万向铰链型波纹膨胀节的解剖分析发现,侵蚀失效通常分点侵蚀穿孔和应力侵蚀开裂,其中氯离子应力侵蚀开裂约占整个侵蚀失效的95%。因此,准确地选择波纹管制作材料和结构、公道设计波形参数和疲惫寿命、保证安装质量等措施,能大大进步万向铰链型波纹膨胀节的安全可靠性。
              设计上,应该考虑万向铰链型波纹膨胀节的不乱性,预防波纹管失稳。资料显示,万向铰链型波纹膨胀节的补偿量取决于其疲惫寿命,疲惫寿命越高,波纹管单波补偿量越小。当波纹管设计的许用寿命?#31995;?#26102;,不仅其子午向综合应力较高,环向应力也比较高,使波纹管局部很快进入塑性变形,导致波纹管失稳引起失效。
                巩义市汇通管道设备厂是专业生产管道设备的专业厂家,技术力量雄厚,产?#20998;柿可?#20056;,供货及时。主要产品有:膨胀节、金属膨胀节、非金属膨胀节、金属波纹管膨胀节、橡胶膨胀节、伸缩器、补偿器等系列产品。全国免费咨询电话:400-6596-393,商QQ:609034069,欢迎新老客户来电咨询订购!联系人?#20309;?#20891; 电话:0371-64011900 0371-64011955 传真:0371-64011800 0371-64011655 网址:http://www.zovh.icu

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