本发明的有益效果：刮种过程中没有剪切作用，消除了伤种问题，降低了吸种孔堵塞的可能性。

The seed pushing device has the advantages of avoiding damages to seeds due to no shearing effect generated in a seed pushing process and reducing the possibility of blockage of the seed suction hole.

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水性中涂封孔层： 选用荣扬水性中涂，加入适量石英粉，搅拌均匀后，施工方式为刮批。

Sealing aperture coating: Rongyang middle coating with suitable amount of quartz powder is used and constructed by shaving after even agitation.

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一种散热鳍片穿孔涂布工具及涂布方法，该工具为一灌入有导热介质的 中空管体，而在管体的一端周缘上设有数个出料孔，并在邻近该出料孔的下 方周缘处环设有具弹性的刮板；

The related perforating coating tool for a heat-conducting fin comprises: a hollow tube filled with conductive medium, some discharge holes on one end of the tube, and a spring scraper under the hole.

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