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编辑:扬州泉达金属网带厂   发布时间:2017-02-08

提到人字型网带乙字型网带的相关知识,相信大家并不陌生,其属于常见网带类型的一种,实践应用中发现,其使用一段时间后会产生开裂现象。那么到底是什么原因导致的呢?对此为了更好的帮助到大家,专业技术人员对其相关内容介绍如下:

    实践应用中,乙字型网带应力侵蚀开裂具有脆性断口形貌,一般发生应力侵蚀开裂的必要前提是要有拉应力和特定的侵蚀介质存在。型纹的形成和扩展大致与拉应力方向垂直。这个导致应力侵蚀开裂的应力值,要比没有侵蚀介质存在时材料断裂所需要的应力值小得多。在微观上,穿过晶粒的裂纹称为穿晶裂纹,而沿晶界扩图的裂纹称为沿晶裂纹,当应力侵蚀开裂扩展至其一深度时,网带材料就按正常的裂纹而断开。因此,应力侵蚀开裂而失效的零件的断面,将包含有应力侵蚀开裂的特征区域以及与已微缺陷的聚合相联系的“韧窝”区域。

以上内容便是我们对于乙字型网带出现开裂现象的原因解析,如果您对其讲述还有其他疑问或者不了解之处,可直接咨询我们专业工作人员。

Mention herringbone mesh belt b type mesh belt of relevant knowledge, believe that everybody is not strange, it belongs to a kind of common mesh belt type, found in practical application, its use after a period of time will produce cracking phenomenon. So what is what causes? In order to better help to you, professional and technical personnel to introduce the relevant contents are as follows:

Practical applications, the b type mesh belt to stress corrosion cracking is brittle fracture morphology, average stress corrosion cracking is the necessary premise of tensile stress and the erosion of the particular medium. Type grain formation and extension of rough and vertical tensile stress direction. This leads to stress value of the stress corrosion cracking than when there are no erosion medium material needed to fracture stress value is much smaller. In the micro level, through the crack in grain called transgranular crack, and the cracks along the grain boundary expansion graph called the intergranular crack, when stress corrosion crack expanding into one depth, mesh belt material according to the normal crack and disconnect. As a result, the stress corrosion cracking and failure of the cross section of the parts, will contain the characteristics of the stress corrosion cracking area and associated with polymerization has micro defects \"toughening nest\" area.

The above content is our reason for b type mesh belt in cracking phenomena, to its about it if you have other questions or do not understand, can be directly consulting our professional staff.


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