随着工业的发展，很多制作工艺都变得简单而迅速，冷作模具钢是用来制造冷冲模、热锻模、压铸模等模具的钢种。接下来小编为大家介绍一下冷作模具钢满足工作条件需要哪些要求。

With the development of industry, many manufacturing processes have become simple and rapid. Cold work die steel is used to make cold punching dies, hot forging dies, die-casting dies and other dies. Next, I would like to introduce the requirements of cold working die steel to meet the working conditions.

一、耐磨性

1、 Abrasion resistance

坯料在模具型腔中塑性变性时，沿型腔表面既流动又滑动，使型腔表面与坯料间产生剧烈的摩擦，从而导致模具因磨损而失效。所以材料的耐磨性是模具基本、重要的性能之一。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。

When the blank becomes plastic in the mold cavity, it flows and slides along the cavity surface, causing severe friction between the cavity surface and the blank, which leads to the failure of the mold due to wear. Therefore, the wear resistance of materials is one of the basic and important properties of moulds. Hardness is the main factor affecting wear resistance. In general, the higher the hardness of die parts, the smaller the wear amount, and the better the wear resistance. In addition, wear resistance is also related to the type, quantity, shape, size and distribution of carbides in materials.

二、强韧性

2、 Strength and toughness

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。模具的韧性主要取决于材料的含碳量、晶粒度及组织状态。

Most of the working conditions of the dies are very bad, and some of them often bear large impact loads, leading to brittle fracture. In order to prevent sudden brittle fracture of die parts during operation, the die shall have high strength and toughness. The toughness of the die mainly depends on the carbon content, grain size and microstructure of the material.

三、疲劳断裂性能

3、 Fatigue fracture property

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。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。

In the process of die working, fatigue fracture is often caused by 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. The fatigue fracture performance of the die mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.

四、高温性能

4、 High temperature performance

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。因模具材料应具有较高的抗回火稳定性，以保证模具在工作温度下，具有较高的硬度和强度。

When the working temperature of the die is higher, the hardness and strength will decrease, leading to early wear or plastic deformation of the die and failure. The die material shall have high tempering stability to ensure that the die has high hardness and strength at working temperature.

五、耐冷热疲劳性能

5、 Cold and hot fatigue resistance

有些模具在工作过程中处于反复加热和冷却的状态，使型腔表面受拉、压力变应力的作用，引起表面龟裂和剥落，增大摩擦力，阻碍塑性变形，降低了尺寸精度，从而导致模具失效。冷热疲劳是热作模具失效的主要形式之一，帮这类模具应具有较高的耐冷热疲劳性能。

Some moulds are heated and cooled repeatedly during the working process, which makes the surface of the mould cavity subject to tensile and pressure variable stress, causing surface cracking and peeling, increasing friction, hindering plastic deformation, reducing dimensional accuracy, and thus leading to mould failure. Cold and hot fatigue is one of the main forms of failure of hot working dies, which should have high cold and hot fatigue resistance.

六、耐蚀性

6、 Corrosion resistance

有些模具如塑料模在工作时，由于塑料中存在氯、氟等元素，受热后分解析出hci、hf等强侵蚀性气体，侵蚀模具型腔表面，加大其表面粗糙度，加剧磨损失效。

When some molds, such as plastic molds, are working, due to the presence of elements such as chlorine and fluorine in the plastic, they decompose and release strong corrosive gases such as hci and hf after being heated, erode the surface of the mold cavity, increase its surface roughness, and intensify wear and failure.

以上是小编给大家介绍的冷作模具钢满足工作条件时的要求，想知道更多关于冷作模具钢的资讯，请多关注我们https://www.jnqhmj.com！

The above is the requirements for cold work die steel to meet the working conditions introduced by Xiao Bian. If you want to know more about cold work die steel, please pay more attention to us https://www.jnqhmj.com ！