如何防止冷作模具钢材过热和过烧？这个问题时常发生过，这个问题就要先知道是怎么回事。

How to prevent overheating and Overburning of cold working die steel? This problem often occurs. To solve this problem, we must first know what is going on.

冷作模具钢在热处理加热时，由于温度过高、保温时间过长及炉内温度不均匀等原因，使冷作模具钢材的晶粒长得好很粗大，以致性能显着降低的现象称为过热。出现过热的材料可用热处理方法使其恢复，如通过完全退火可使晶粒细化而加以改善。

During heat treatment and heating of cold working die steel, due to high temperature, long holding time and uneven temperature in the furnace, the grains of cold working die steel grow well and coarsely, so that the performance is significantly reduced, which is called overheating. Overheated materials can be recovered by heat treatment. For example, grain refinement can be improved by complete annealing.

冷作模具钢加热温度达到固相线温度附近时，晶界开始部分融化并氧化的现象称为过烧。这是一种内氧化现象，过烧的冷作模具钢不能用热处理或塑性变形加工方法使其恢复，只能报废。所以在热处理过程中严格按照工艺制度进行加热和保温是防止过热和过烧的基本要求。

When the heating temperature of cold working die steel reaches near the solidus temperature, the grain boundary begins to partially melt and oxidize, which is called overburning. This is an internal oxidation phenomenon. The over burned cold work die steel cannot be recovered by heat treatment or plastic deformation processing, but can only be discarded. Therefore, heating and insulation in strict accordance with the process system during heat treatment is the basic requirement to prevent overheating and overburning.

金属、冷作模具钢或合金在热处理加热时，由于温度过高、保温时间过长及炉内温度不均匀等原因，使钢的晶粒长得好很粗大，以致性能显着降低的现象称为过热。出现过热的材料可用热处理方法使其恢复，如通过完全退火可使晶粒细化而加以改善。

During heat treatment and heating of metal, cold working die steel or alloy, due to high temperature, long holding time and uneven temperature in the furnace, the grain of steel grows well and coarsely, so that the performance is significantly reduced, which is called overheating. Overheated materials can be recovered by heat treatment. For example, grain refinement can be improved by complete annealing.

冷作模具钢加热温度达到固相线温度附近时，晶界开始部分融化并氧化的现象称为过烧。这是一种内氧化现象，过烧的冷作模具钢不能用热处理或塑性变形加工方法使其恢复，只能报废。所以在热处理过程中严格按照工艺制度进行加热和保温是防止过热和过烧的基本要求。更多信息就来网站https://www.jnqhmj.com咨询吧。

When the heating temperature of cold working die steel reaches near the solidus temperature, the grain boundary begins to partially melt and oxidize, which is called overburning. This is an internal oxidation phenomenon. The over burned cold work die steel cannot be recovered by heat treatment or plastic deformation processing, but can only be discarded. Therefore, heating and insulation in strict accordance with the process system during heat treatment is the basic requirement to prevent overheating and overburning. Come to the website for more information https://www.jnqhmj.com Consult.