新闻动态

首页 > 新闻动态
硬度是影响塑料井盖模具的主要因素
发布人:管理员   发布时间:2020-12-11

塑料井盖模具的疲劳断裂性能主要取决于其强度、韧性、硬度、以及材料中夹杂物的含量。当模具的工作温度较高进,会使硬度和强度下降,导致模具早期磨损或产生塑性变形而失效。
The fatigue fracture performance of plastic well cover mould mainly depends on its strength, toughness, hardness and the content of inclusions in the material. When the working temperature of the die is higher, the hardness and strength will be decreased, which will lead to early wear or plastic deformation of the die.

硬度是影响耐磨性的主要因素。一般情况下,模具零件的硬度越高,磨损量越小,耐磨性也越好。另外,耐磨性还与材料中碳化物的种类、数量、形态、大小及分布有关。
Hardness is the main factor affecting wear resistance. Generally speaking, the higher the hardness of die parts is, the smaller the wear loss is, and the better the wear resistance is. In addition, the wear resistance is also related to the type, quantity, morphology, size and distribution of carbides in the material.

     

模具的工作条件大多十分恶劣,有些常承受较大的冲击负荷,从而导致脆性断裂。为防止模具零件在工作时突然脆断,模具要具有较高的强度和韧性。
Most of the working conditions of dies are very bad, some of them often bear large impact load, which leads to brittle fracture. In order to prevent sudden brittle fracture of die parts, the die should have high strength and toughness.

塑料井盖模具的韧性主要取决于材料的含碳量、晶粒度及组织状态。井盖模具工作过程中,在循环应力的长期作用下,往往导致疲劳断裂。其形式有小能量多次冲击疲劳断裂、拉伸疲劳断裂接触疲劳断裂及弯曲疲劳断裂。
The toughness of plastic well cover mould mainly depends on the carbon content, grain size and microstructure of the material. During the working process of well cover die, fatigue fracture often occurs under the long-term effect of cyclic stress. Its forms include low energy multiple impact fatigue fracture, tensile fatigue fracture, contact fatigue fracture and bending fatigue fracture.

上一篇:没有了