硬度是山东模具钢重要的性能之一，提升模具质量、制造水平和延长模具的使用寿命是个很关键的话题。下面来看看模具钢材的硬度检测方法参考。

Hardness is one of the important properties of Shandong die steel. It is a key topic to improve the quality, manufacturing level and extend the service life of the die. Now let's take a look at the hardness testing method reference of die steel.

模具钢是模具工业的主体材料，根据模具的服役条件、环境和状态的不同，模具钢应具备不同的特性。在工业生产中，模具使用寿命和制成零件的精度、质量、外观性能，除与模具的设计技术、制造精度，以及机床精度和制造操作有关外，正确地选用模具材料和正确地执行热处理工艺也是关重要的，资料显示，模具早期失效因材料选择不当和材料内部缺陷引起的大约占百分之十左右，而由热处理不当引起的约占百分之四十九。

Die steel is the main material of die industry. Die steel should have different characteristics according to different service conditions, environments and states of dies. In industrial production, the service life of the mold and the precision, quality and appearance performance of the parts made are related to the design technology and manufacturing precision of the mold, as well as the precision and manufacturing operation of the machine tool. In addition, it is also crucial to correctly select mold materials and correctly implement the heat treatment process. Data shows that the early failure of the mold is caused by improper selection of materials and internal defects of materials, accounting for about 10%, And about 49% of them are caused by improper heat treatment.

硬度是模具材料和成品模具的重要性能指标。模具在工作时的受力状态是复杂的，如热作模具通常是在交变的温度场下承受交变应力作用，因此它应具有良好的阻止模具转变成较软或塑性状态的能力，并且在长期工作环境下仍保持模具的形状和尺寸精度不变。一般成品模具的硬度，冷作模具常选择在5960HRC，热作模具常选择在48HRC左右。

Hardness is an important performance index of mold materials and finished molds. The stress state of the mold during working is complex. For example, the hot working mold usually bears the alternating stress under the alternating temperature field, so it should have a good ability to prevent the mold from changing into a soft or plastic state, and still maintain the shape and dimensional accuracy of the mold under a long-term working environment. Generally, the hardness of finished molds is 59 to 60HRC for cold working molds and about 48HRC for hot working molds.

耐磨性也是成品模具的重要性能指标。零件成形时金属和模具型腔表面发生相对运动，磨损了型腔表面，使模具的尺寸形状、精度和表面粗糙度发生变化而失效。模具的耐磨性是由模具的热处理，特别是表面热处理决定的，评估模具耐磨性好坏的主要依据是硬度。

Wear resistance is also an important performance index of the finished mold. The relative movement between the metal and the surface of the die cavity during the forming of the part has worn the surface of the die cavity, so that the size, shape, accuracy and surface roughness of the die change and become invalid. The wear resistance of the mold is determined by the heat treatment of the mold, especially the surface heat treatment. The main basis for evaluating the wear resistance of the mold is hardness.

模具钢的硬度测试主要针对三种情况，即模具钢材料的硬度检测，经过热处理的半成品模具的检测硬度及要求高耐磨性的模具表面热处理后的表面硬度的检测。

The hardness test of die steel is mainly aimed at three situations, namely, the hardness test of die steel materials, the hardness test of semi-finished dies after heat treatment and the surface hardness test of die surfaces requiring high wear resistance after heat treatment.

供货状态的模具钢主要是经过锻造的钢板、钢块或钢棒，一般以退火状态供货。某些塑料模具钢还以预硬状态（调质处理）供货，用户可直接加工成模具而不必进行后续热处理。

Die steel in the supply state is mainly forged steel plates, steel blocks or steel bars, which are generally supplied in the annealed state. Some plastic mould steels are also supplied in the pre hardening state (quenching and tempering treatment), and users can directly process them into moulds without subsequent heat treatment.

硬度是模具钢重要的性能之一，模具的热处理质量和使用性能通常都是以硬度作为判断的依据。关注我们https://www.jnqhmj.com，带您了解更多相关事项！

Hardness is one of the important properties of die steel. The heat treatment quality and service performance of dies are usually judged on the basis of hardness. Follow us https://www.jnqhmj.com , take you to learn more about relevant matters!