Surface pinholes caused by gas formed at the mould surface.
因钢锭模表面生成气体而形成的表面针孔。
Powder coating technology is presented. It is found that the pinholes and bulbs in the coating surface are caused by the air gaps within the components to be coated.
介绍云母电容器粉末包封的关键工艺技术，指出包封外观气孔或气泡产生的本质原因是待包封元件内部存在气体间隙。
Among others, surface defects such as pinholes, holes and stains appear during the production of PM components, especially after sintering.
烧结钢部件在生产过程中，尤其是烧结之后其表面有时会出现针孔、孔洞及斑痕等缺陷。
The pinholes on the surface of alignment layer was studied, which formed during the TFT-LCD manufacturing process and caused defects of the products.
在TFT-LCD的生产过程中，取向层表面针孔缺陷是造成产品不良的常见原因。
The pinholes on the surface of alignment layer was studied, which formed during the TFT-LCD manufacturing process and caused defects of the products.
在TFT-LCD的生产过程中，取向层表面针孔缺陷是造成产品不良的常见原因。
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