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矩形金属膨胀节材质怎么挑？波纹管、框体、导流筒各有各的讲究
先搞明白：你是在给方烟道选膨胀节，不是在给圆管选矩形金属膨胀节这玩意儿，看着跟圆形膨胀节长得像亲戚，但选材思路完全两码事。圆管膨胀节承受的是轴向力、环向应力，矩形截面呢？四个角有应力集中，平面受力不均衡，加上烟气管道里积灰、腐蚀、湍流，工况...
金属膨胀节内壁光滑，关键到能影响整套管道寿命
一、内壁不光洁，管道系统会付出什么代价？先说个真事。前两年有个化工厂的循环水管道，用的是DN400的波纹膨胀节，运行不到八个月就漏了。拆下来一看，波纹谷底磨穿了一个小洞，内壁全是麻点和锈蚀痕迹。车间主任挺纳闷：材质明明是316L，介质也就是...
进口非金属膨胀节，凭什么比国产贵那么多？
前两天碰到个做电厂项目的哥们儿，聊起进口非金属膨胀节的报价，他直摇头：“同样的口径，进口件比国产贵两到三倍，真有人买？” 有，而且还不少。贵有贵的道理，这玩意儿跟买菜不一样，不是越大越贵，是材质和工艺说了算。进口非金属膨胀节和国产货的差距，...
The usefulness of non-metallic compensators? It is more reliable than metal under these conditions
Find out what non-metallic compensator is first: compared with metal compensator, where is it stronger and weaker?The co...
How to choose the material of non-metallic compensator skin? It is enough to understand these 5 questions
I met a customer two days ago. The non-metallic expansion joint on the flue gas pipe was used for less than a year, and ...
Ash Conveying Metal Expansion Joints Can't Be Used? Find the reason from model selection first
How "damaged" is the ash pipeline?A while ago, the person in charge of the maintenance of a thermal power plant complain...
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