| 选择模具钢时什么是最重要 |
| 添加时间：2019/7/22 13:36:36 浏览次数： |
| 选择模具钢时什么是最重要的和最具有决定性意义的因素？ What is the most important and decisive factor in choosing die steel? 成形方法——可从两种基本材料类型中选择。 Forming method - can be selected from two basic material types. A) 热加工工具钢，它能承受模铸、锻造和挤压时的相对高的温度。 A) Hot working tool steel, which can withstand relatively high temperatures during die casting, forging and extrusion. B) 冷加工工具钢，它用于下料和剪切、冷成形、冷挤压、冷锻和粉末加压成形。 B) Cold working tool steel, which is used for blanking and shearing, cold forming, cold extrusion, cold forging and powder pressurized forming. 塑料——些塑料会产生腐蚀性副产品，例如PVC塑料。长时间的停工引起的冷凝、腐蚀性气体、酸、冷却加热、水或储存条件等因素也会产生腐蚀。 在这些情况下，推荐使用不锈钢材料的模具钢。 Plastics - Some plastics produce corrosive by-products, such as PVC plastics. Condensation, corrosive gases, acids, cooling and heating, water or storage conditions caused by long shutdowns can also cause corrosion. In these cases, stainless steel die steel is recommended. 模具尺寸——大尺寸模具常常使用预硬钢。 整体淬硬钢常常用于小尺寸模具。 Die Size - Pre-hardened steel is often used in large-size dies. Integral hardened steel is often used in small size dies. |
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