2014年11月28日星期五

plastic rattan molding standards need to be improved

According to a comparative study of domestic and foreign steel mold found quality plastic rattan molding is mainly reflected in: pure, uniform, organize small, precise size. These aspects MASTER plastic rattan molding of the gap caused by cold die steel imports in the same strength steel lack of toughness, wear resistance is low; while hot work die steel high-temperature strength and thermal fatigue performance are low, so that made life than tool steel mold steel imports the die life significantly lower. the existence of many of the above plastic rattan molding quality problems, but are qualified by national standards of regular products. plastic rattan molding standard gap. Table 2 shows the chemical composition of plastic mold manufacturer the steel standards in different countries. Annealing North American Die Casting Association standards organizations assess detection can be found, banded structure, and impact toughness and other issues are not our country assessment indicators. This is the key question poor quality of domestic steel production. We must clearly recognize that in advanced countries of the enterprise, but the international standard as a minimum standard, thin wall injection molding  really carry out or perform is higher than the international standard of "enterprise standard" or "internal control standards", such as Sweden, plastic rattan molding there are very strict corporate standards. The reality is just the opposite with the current situation of China, is not conducive to the development of China's mold steel. To this end, the national standard plastic rattan molding should be closer to the international advanced standards as much as possible, as this will promote the improvement of the level of tool steel, tool steel is generally low quality change phenomenon.

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