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盖板模具-盖板塑料模具的疲劳断裂性能的决定因素

网站编辑:海盐华丰塑业有限公司 │ 发布时间:2020-03-18 

随着我国工业水平的不断发展,我国的模具行业也随着有了飞速的发展,很多模具制造企业的盖板塑料模具制造能力已经达到了国际先进水平。但我国西部地区的模具发展还处于低水平阶段需要大量的技术工人的支撑。先进塑料盖板模具的制造其中离不开先进的模具抛光工艺,先进的塑料盖板模具抛光工艺可以提高模具的使用寿命还能提高模具是生产效率。

With the continuous development of China's industrial level, China's mold industry has also developed rapidly, and many mold manufacturing companies' cover plate mold manufacturing capabilities have reached the international advanced level. However, the development of molds in the western region of China is still at a low level and requires the support of a large number of skilled workers. The manufacture of advanced plastic cover molds is inseparable from the advanced mold polishing process. The advanced plastic cover mold polishing process can improve the service life of the mold and improve the production efficiency of the mold.

盖板塑料模具_盖板塑料模具厂_华丰塑业

盖板塑料模具的疲劳断裂性能主要取决于其强度、韧性、硬度、以及材料中夹杂物的含量。当塑料盖板模具的工作温度较高时,会使硬度和强度下降,导致模具早期磨损,或产生塑性变形而失效。因此,模具材料应具有较高的抗回火稳定性,以保证塑料盖板模具在工作温度下,具有较高的硬度和强度。有些模具在工作过程中处于反复加热和冷却的状态,使型腔表面受拉、压力变应力的作用,引起表面龟裂和剥落,增大摩擦力,阻碍塑性变形,降低了尺寸精度,从而导致模具失效。冷热疲劳是热作模具失效的主要形式之一,这类模具应具有较高的耐冷热疲劳性能。

The fatigue fracture performance of the plastic mold of the cover plate mainly depends on its strength, toughness, hardness, and the content of inclusions in the material. When the working temperature of the plastic cover mold is high, the hardness and strength will decrease, leading to early wear of the mold, or plastic deformation and failure. Therefore, the mold material should have high resistance to tempering to ensure that the plastic cover mold has higher hardness and strength at the working temperature. Some molds are in the state of repeated heating and cooling during the work process, which causes the surface of the cavity to be stretched and pressure to change the stress, causing surface cracking and peeling, increasing friction, hindering plastic deformation, and reducing dimensional accuracy, which results Mold failure. Cold and hot fatigue is one of the main forms of failure of hot work molds. Such molds should have high cold and hot fatigue resistance.