水沟盖板模具的耐磨性强：坯料在模盒盒腔中塑性变性时，沿盒腔表面既流动又滑动，使盒腔表面与坯料间产生剧烈的摩擦，从而导致模盒因磨损而失效。所以材料的耐磨性是模盒最基本、最重要的性能之一。硬度是影响耐性的主要因素。一般情况下，水沟盖板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、分布尤其是密度有关。

Ditch cover mold wear resistance: billet in the mold box box cavity in plastic deformation, the chamber can flow and sliding surface, causes dramatic friction between the billet and the box cavity surface, which leads to the mold box by wear. Therefore, the wear resistance of the material is one of the most basic and important properties of the mold box. Hardness is a major factor affecting tolerance. Under normal circumstances, the higher the hardness of the gutter cover die parts, the smaller the wear and tear, and the better the wear resistance. In addition, the wear resistance is also related to the type, quantity, shape, size, distribution, especially density of carbides in the material.

水沟盖板模具强韧性：水沟盖板模具的工作条件大多十分恶劣，使用地点应建筑地域而定，有些常承受较大的冲击负荷，从而导致水沟盖板模具脆性断裂。为防止模盒零件在工作时突然脆断，水沟盖板模具要盒有较高的强度和韧性。模盒的韧性主要取决于材料的含碳量、晶粒度及组织状态。

The strength and toughness of ditch cover mold: ditch cover mold working conditions are very bad, the use of the site should be building region and some are often subjected to impact load, resulting in brittle fracture ditch cover mold. In order to prevent the mold box parts from breaking suddenly at work, the mold of the gutter cover plate requires higher strength and toughness. The toughness of the mould case mainly depends on the carbon content, grain size and microstructure of the material.

水沟盖板模具疲劳断裂性能：模盒工作过程中，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。模盒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。

The fatigue fracture performance of the gutter cover plate die often causes fatigue fracture under the long-term action of cyclic stress. Its forms include small energy, multiple impact fatigue, tensile fracture, contact fatigue fracture and bending fatigue fracture. The fatigue fracture properties of the mould case mainly depend on its strength, toughness, hardness and the content of inclusions in the material.