硬度是山東模具鋼重要的性能之一，提升模具質量、制造水平和延長模具的使用壽命是個很關鍵的話題。下面來看看模具鋼材的硬度檢測方法參考。

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.

模具鋼是模具工業的主體材料，根據模具的服役條件、環境和狀態的不同，模具鋼應具備不同的特性。在工業生產中，模具使用壽命和制成零件的精度、質量、外觀性能，除與模具的設計技術、制造精度，以及機床精度和制造操作有關外，正確地選用模具材料和正確地執行熱處理工藝也是關重要的，資料顯示，模具早期失效因材料選擇不當和材料內部缺陷引起的大約占百分之十左右，而由熱處理不當引起的約占百分之四十九。

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標。模具在工作時的受力狀態是復雜的，如熱作模具通常是在交變的溫度場下承受交變應力作用，因此它應具有良好的阻止模具轉變成較軟或塑性狀態的能力，并且在長期工作環境下仍保持模具的形狀和尺寸精度不變。一般成品模具的硬度，冷作模具常選擇在5960HRC，熱作模具常選擇在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標。零件成形時金屬和模具型腔表面發生相對運動，磨損了型腔表面，使模具的尺寸形狀、精度和表面粗糙度發生變化而失效。模具的耐磨性是由模具的熱處理，特別是表面熱處理決定的，評估模具耐磨性好壞的主要依據是硬度。

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.

模具鋼的硬度測試主要針對三種情況，即模具鋼材料的硬度檢測，經過熱處理的半成品模具的檢測硬度及要求高耐磨性的模具表面熱處理后的表面硬度的檢測。

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.

供貨狀態的模具鋼主要是經過鍛造的鋼板、鋼塊或鋼棒，一般以退火狀態供貨。某些塑料模具鋼還以預硬狀態（調質處理）供貨，用戶可直接加工成模具而不必進行后續熱處理。

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.

硬度是模具鋼重要的性能之一，模具的熱處理質量和使用性能通常都是以硬度作為判斷的依據。關注我們http://m.6886774.cn，帶您了解更多相關事項！

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 http://m.6886774.cn , take you to learn more about relevant matters!