Mold is the main process equipment for industrial production. The development of modern industrial products and the improvement of technological level, to a large extent, depends on the level of development of the mold industry. Since the Second World War, the improvement of automation has led to the rapid development of foreign moulds. Although China is a large country of mould making, it is not a powerful country in mould manufacturing. This is the key to the quality of the spring that matches the mold. Affect the performance of the whole mold.

本人是从事表面处理工程专业，对模具弹簧也就是矩形弹簧的表面处理作了市场调查。发觉如下问题，提出来讨论。 弹簧表面采用各种漆层来代作识别，如轻小荷重用黄色漆表示;轻荷重用蓝色漆表示;中荷重用红色漆表示;极重荷重用咖啡色漆表示; 性能分析:好的漆层来配套弹簧表面处理，可谓一举两得，用颜色来标识各种技术参数，方便工业生产操作，而且使弹簧表面的防腐性能得以更好的保证。 目前成功使用上述方式的主要厂家为国外厂家多，如日本东发公司等。

I am engaged in surface treatment engineering, the mold spring is also rectangular spring surface treatment market research. Find the following questions and discuss them. The spring surface is identified by various paint layers, such as yellow paint for light and small loads, blue paint for light loads, red paint for medium loads, coffee paint for extreme loads, and performance analysis: a good paint layer for supporting spring surface treatment can be said to kill two birds with one stone, and color can be used to identify various technical parameters. The production operation, and make the surface corrosion resistance of the spring better guaranteed. At present, the main manufacturers that successfully use the above methods are many foreign manufacturers, such as Japan Eastern hair company.

在国内，此还只有小部分厂家效访，目前主要是一些固定的技术要求，如采用进口材料而达到国外水平外，但整个弹簧表面处理效果却明显存在差距。 国内一般用人工喷漆，外观会出现流挂、漏喷、结合不好，防锈能力差。本身的工艺局限性造成大量的产品要脱漆返工。

At home, only a small number of manufacturers visited, at present mainly some fixed technical requirements, such as the use of imported materials to achieve foreign standards, but the whole spring surface treatment effect is obviously different. Generally used in domestic spray paint, the appearance of flow hanging, leakage spray, combination is not good, rust prevention ability is poor. The limitations of its technology cause a large number of products to be stripper and rework.