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            熱處理是模具鋼重要的工藝工程

            來源:http://www.environmentandpeople.net/ 日期:2022-08-27 發布人:guanli


            熱處理是山東模具鋼重要的工藝工程,這種工藝一般不改變工件的整體形狀,是改善工件的內在質量,提高模具鋼的工件的力學性能、物理性能和化學性能,模具鋼熱處理技術要求也是比較高,那么具體的工藝過程如何呢?
            Heat treatment is an important process engineering of Shandong die steel. This process generally does not change the overall shape of the workpiece. It is to improve the internal quality of the workpiece and improve the mechanical, physical and chemical properties of the workpiece of die steel. The technical requirements for heat treatment of die steel are also relatively high. What about the specific process?
            熱處理工藝一般包括加熱、保溫、冷卻三個過程,有時只有加熱和冷卻兩個過程。這些過程互相銜接,不可間斷。
            The heat treatment process generally includes three processes of heating, insulation and cooling, and sometimes only two processes are heating and cooling. These processes are interconnected and cannot be interrupted.
            加熱是熱處理的重要工序之一。金屬熱處理的加熱方法很多,早是采用木炭和煤作為熱源,近而應用液體和氣體燃料。電的應用使加熱易于控制,且無環境污染。利用這些熱源可以直接加熱,也可以通過熔融的鹽或金屬,以至浮動粒子進行間接加熱。
            Heating is one of the important processes of heat treatment. There are many heating methods for metal heat treatment. In the early days, charcoal and coal were used as heat sources, and liquid and gas fuels were recently used. The application of electricity makes heating easy to control and no environmental pollution. These heat sources can be used for direct heating or indirect heating by molten salt or metal or even floating particles.
            金屬加熱時,工件暴露在空氣中,常常發生氧化、脫碳(即鋼鐵零件表面碳含量降低),這對于熱處理后零件的表面性能有很不利的影響。因而金屬通常應在可控氣氛或保護氣氛中、熔融鹽中和真空中加熱,也可用涂料或包裝方法進行保護加熱。
            When the metal is heated, the workpiece is exposed to the air, and oxidation and decarburization often occur (that is, the carbon content on the surface of steel parts is reduced), which has a very adverse effect on the surface performance of the parts after heat treatment. Therefore, the metal should usually be heated in a controlled atmosphere or protective atmosphere, molten salt and vacuum, and can also be protected by coating or packaging.
            加熱溫度是熱處理工藝的重要工藝參數之一,選擇和控制加熱溫度,是保證熱處理質量的主要問題。加熱溫度隨被處理的金屬材料和熱處理的目的不同而異,但一般都是加熱到相變溫度以上,以獲得高溫組織。
            Heating temperature is one of the important process parameters of heat treatment process. Selecting and controlling heating temperature is the main problem to ensure the quality of heat treatment. The heating temperature varies with the metal material to be treated and the purpose of heat treatment, but it is generally heated to above the phase transformation temperature to obtain a high-temperature structure.
            山東模具鋼
            另外轉變需要一定的時間,因此當金屬工件表面達到要求的加熱溫度時,還須在此溫度保持一定時間,使內外溫度一致,使顯微組織轉變完全,這段時間稱為保溫時間。采用高能密度加熱和表面熱處理時,加熱速度快,一般就沒有保溫時間,而化學熱處理的保溫時間往往較長。
            In addition, the transformation takes a certain time. Therefore, when the surface of the metal workpiece reaches the required heating temperature, it must be kept at this temperature for a certain time to make the internal and external temperatures consistent and complete the transformation of the microstructure. This period of time is called the holding time. When high-energy density heating and surface heat treatment are adopted, the heating speed is fast, and generally there is no holding time, while the holding time of chemical heat treatment is often long.
            冷卻也是熱處理工藝過程中不可缺少的步驟,冷卻方法因工藝不同而不同,主要是控制冷卻速度。一般退火的冷卻速度慢,正火的冷卻速度較快,淬火的冷卻速度更快。但還因鋼種不同而有不同的要求,例如空硬鋼就可以用正火一樣的冷卻速度進行淬硬。
            Cooling is also an indispensable step in the heat treatment process. The cooling method varies with different processes, mainly by controlling the cooling speed. Generally, the cooling speed of annealing is slow, the cooling speed of normalizing is faster, and the cooling speed of quenching is faster. However, there are different requirements due to different steel types. For example, air hardened steel can be quenched at the same cooling rate as normalizing.
            綜上所述,模具鋼一般是加熱、保溫、冷卻這三個過程,熱處理是模具鋼重要的工序之一,能大幅度的提高模具鋼的各項指標和性能,以上就是關于模具鋼的工藝過程內容,相信大家已有所了解,更多相關內容可關注我們網站http://www.environmentandpeople.net咨詢!
            To sum up, die steel generally consists of three processes: heating, heat preservation and cooling. Heat treatment is one of the important processes of die steel, which can greatly improve the various indicators and properties of die steel. The above is the content of the process of die steel. I believe you have already understood it. For more related content, please follow our website http://www.environmentandpeople.net consulting service

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