山東通風(fēng)管道在我們的生活中擔(dān)任著非常重要的作用，由于通風(fēng)管道大多是一些薄壁產(chǎn)品，所以在生產(chǎn)和使用的過程中，會(huì)出現(xiàn)翹曲變形的現(xiàn)象。那么導(dǎo)致通風(fēng)管道變形的原因有哪些呢?山東通風(fēng)管道廠家為大家介紹一下：
Shandong ventilation pipeline plays a very important role in our life. Because most of the ventilation pipelines are thin-walled products, warping and deformation will occur in the process of production and use. So what are the reasons for the deformation of ventilation ducts? Shandong ventilation duct manufacturers will introduce to you:
1、鎂水泥在自然養(yǎng)護(hù)條件下其體積是一個(gè)連續(xù)膨脹過程，其線膨脹率為0.1-0.2%，體積膨脹率約為1%。
1. The volume of magnesia cement is a continuous expansion process under natural curing conditions. Its linear expansion rate is 0.1-0.2%, and its volume expansion rate is about 1%.
2、菱鎂礦在服燒過程中不可避免地產(chǎn)生局部過燒，使一部分MgO呈死燒狀態(tài)，過燒的MgO水化過程很慢，當(dāng)已形成強(qiáng)度的水泥石中的MgO再遇水進(jìn)行水化時(shí)，生成Mg(OH)2，體積膨脹120%。
2. Magnesite inevitably produces local overburning in the course of serving and burning, which makes part of MgO in a dead state. The hydration process of overburned MgO is very slow. When MgO in the cement stone with formed strength is hydrated by water again, Mg(OH)2 is formed and its volume expands by 120%.
3、輕燒氧化鎂中游離CaO水化時(shí)體積膨脹90%，而鹵片中存在著 SO42-，當(dāng)Ca(OH)2轉(zhuǎn)化成石膏時(shí)，固體體積將增加2倍以上，導(dǎo)致制品變形，這也是限制輕燒氧化鎂中游離CaO含量、鹵片中SO42-含量的原因。
山東通風(fēng)管道
3. Volume expansion of free CaO in light-burned magnesia is 90% when hydration occurs, while SO42-exists in brine tablets. When Ca(OH)2 is converted into gypsum, solid volume will increase by more than two times, resulting in product deformation, which is also the reason for limiting free CaO content in light-burned magnesia and SO42-content in brine tablets.
4、MgO-Mg-C12-H2O系統(tǒng)水化過程是一個(gè)強(qiáng)烈的放熱反應(yīng)過程，而生產(chǎn)的管道體積又大，若環(huán)境溫度較高，則反應(yīng)升溫過程，板材本體溫度過高，反應(yīng)不充分，造成較大的結(jié)晶應(yīng)力和熱膨脹應(yīng)力，使制品體積膨脹。
4. The hydration process of MgO-Mg-C12-H2O system is a strong exothermic reaction process, and the volume of the pipeline is large. If the ambient temperature is high, the reaction heating process will occur. The temperature of the sheet body is too high and the reaction is not enough, resulting in larger crystallization stress and thermal expansion stress, which will cause the volume expansion of the product.
以上就是通風(fēng)管道變形的4方面原因，了解這些變形原因可以幫助我們更好的解決問題，只要及時(shí)解決，是不會(huì)影響正常的工作的。但是不管在什么時(shí)候，我們都要嚴(yán)格按照操作規(guī)范，這樣才能夠保證通風(fēng)管道有效發(fā)揮出使用效果。以上就是山東通風(fēng)管道廠家為大家介紹的全部內(nèi)容，希望對(duì)大家有所幫助!
These are the four reasons for the deformation of ventilation pipes. Understanding these causes can help us solve the problem better. As long as the problem is solved in time, it will not affect the normal work. However, no matter when, we must strictly follow the operation specifications, so as to ensure the effective use of ventilation pipes. Above is the whole content of Shandong Ventilation Pipeline Manufacturer for you, I hope to help you all!
