湖北快3走势图

咨询热线:

0531-88771136

您的当前位置: 湖北快3走势图 > 湖北快3走势图 > 正文

加工产品时表面出现的瑕疵如何来解决?

来源:http://www.ok9868.com     发布时间:2020-10-21 14:16:14    点击:

一般在模具加工中,如果需要使用注塑设备加工的产品表面都会出现大大小小的缺陷,一般这些缺陷会出现在浇口位置,浇口位置属于模具加工起始位置,所以这两个位置容易出现问题,那么我们就需要想办法消除这些缺陷,这样展示效果才会提升。
Generally, in mold processing, if the surface of the product that needs to be processed by injection molding equipment will be large and small defects, generally these defects will appear in the gate position, and the gate position belongs to the starting position of mold processing. Therefore, these two positions are prone to problems, then we need to find ways to eliminate these defects, so that the display effect can be improved.
像暗斑缺陷以及细微的瑕疵都会出现在浇口的附近,在生产高粘度,低流动性的材料的产品,如PC,PMMA,或尤其是ABS时的感觉。当树脂被冷却的树脂的表面层流走,则可能发生所述制品的这类缺陷的可见表面。
Dark spot defects and subtle defects can appear near the gate, and feel when producing high viscosity, low mobility materials such as PC, PMMA, or ABS in particular. When the surface layer of the resin cooled by the resin flows away, the visible surface of such defects of the product may occur.
     济南模具
人们对于通常可以认定存在这种技术缺陷进行频繁发生在充模和保压阶段。事实上,暗斑出现在浇口附近,通常发生在注射时间周期的开始发展阶段。试验研究表明,表层滑移的发生问题实际上要归因于注射速度,更确切地说是熔体流前端的流动资产速度。
It is often found that the technical defects often occur in the filling and pressure maintaining stage. In fact, dark spots appear near the gate, usually at the beginning of the injection time cycle. The experimental results show that the problem of surface slip is actually due to injection velocity, more precisely the velocity of the current assets at the front of the melt flow.
即使熔体进入模具时注入速度恒定,其流动速度也会发生变化。进入模具浇口区域时,熔体速度很高,但进入模具型腔后,熔体速度开始下降。熔体流动前端流速的这种变化会导致表面缺陷。
Even if the injection velocity of melt is constant when it enters the mold, the flow velocity will change. When entering the gate area of the mold, the melt speed is very high, but after entering the mold cavity, the melt speed begins to decline. This change in the flow velocity at the front end of the melt flow can lead to surface defects.
解决这个问题的方法之一是降低注射速度。为了降低浇口处熔体流动前沿的速度,可将注射分成若干个阶段,并逐步提高注射速度。
One way to solve this problem is to reduce the injection rate. In order to reduce the velocity of the melt flow front at the gate, injection can be divided into several stages and the injection speed can be gradually increased.
另一个原因制品的低熔融温度为暗点,增加筒温度,能够减少螺钉的背压,以改善这种现象发生的可能性。此外,模具的温度太低会产生表面缺陷,模具温度是一个可行的选择,以克服所述制品的表面的缺陷。
Another reason is that the low melting temperature of the product is the dark point, and the increase of the barrel temperature can reduce the back pressure of the screw to improve the possibility of this phenomenon. In addition, the surface defects will be produced when the temperature of the die is too low, and the mold temperature is a feasible choice to overcome the surface defects of the product.
联系我们 contact

山东济南模具_铝合金压铸厂-济南宏捷模具湖北快3走势图

电话1:13173017488

电话2:18615459955

传真:0531-88771136

邮箱:hlm369@126.com

地址:山东省济南市大桥镇大王村北跨商务中心后三层白楼

山东济南模具_铝合金压铸厂-济南宏捷模具湖北快3走势图 手机: 13173017488 咨询热线: 0531-88771136 咨询热线:18615459955    邮箱:hlm369@126.com

公司地址: 山东省济南市大桥镇大王村北跨商务中心后三层白楼

百盈彩票APP下载 湖北快3 安徽快3开奖结果 湖北快3走势图 博享彩票APP下载 湖北快3走势图 博美彩票官网 安徽快3开奖结果 湖北快3走势图 湖北快3走势图