1.2738 steel is mainly used for processing and production of hot work molds. Among them, plastic molds are the most common .It is suitable for molds requiring high smoothness such as production of hard rubber (PS) and ABS. It is suitable for large-scale, especially thicker than 400mm plastic molds. This plastic molds require uniform hardness, high toughness and good surface polishing performance. For example like large-scale molds for household appliances, TV casings, photocopier casings and instrument panels.
Some customers focus on the cost, they may purchase the not good 1.2738 steel, which results in the following problems.
The mold steel has many impurities and often encounters sand holes, cracks and pits, and the mold cannot be polished.
The hardness is not uniform, the CNC computer gong processing is difficult to walk. The machine is injured, the processing is difficult when drilling and tapping especially when deep hole drilling is used to process the water delivery hole.
When processing large molds, the hardness of the surface and the core is inconsistent, and the mold is easily deformed, which causes the mold to open and close erratically.
When high pressure injection, the mold is easy to collapse, and there are many plastic products. As a result, the life of the mold is short and the maintenance cost is high.
The 1.2738 steel provided by OTAI has good microstructure density, high hardness and uniformity, and smooth milling. The material has high purity and good mold polishing.We are the very valuable and trustable supplier who supplied for the Thyssen Krupp and Chinese ordnance industry group. We have our own creating technique through this more than 20 years rich experience.
