1、济南断桥铝门窗从表面凹进去的划伤多是由于模具粘有异物或空刀处加工粗糙产生的。
1, Ji'nan broken bridge aluminum doors and windows from the surface of the concave in the more scratches, because the mold sticky foreign body or empty knife processing rough produced.
2、在制品的转角处出现的凸起划痕，是由于挤压模具裂纹所产生。
2. The raised scratches at the corner of work in process are caused by cracks in the extrusion die.
3、横向划伤或划痕主要是由于制品从滑出台横向运至成品锯切台时，冷床上有坚硬物突出将制品划伤。也有的是在装料， 搬运中产生的划伤，划痕是铝型材挤压过程中常见的表面缺陷。
3, transverse scratch or scratches is mainly due to products from the introduction of sliding lateral migration to finished sawing Taiwan, cooling bed hard will have prominent scratch products. There are also scratches during loading and handling, and scratches are common surface defects in aluminum extrusion.
怎样避免济南断桥铝门窗表面划伤？
How to avoid the Ji'nan bridge broken aluminum doors and windows surface scratches?
1、挤压模具工作带应加工光洁平滑，挤压模具空刀也应加工平滑。
1, extrusion die work belt should be processed smooth, smooth, extrusion die, empty knife should also be processed smoothly.
2、装模时应认真检查，防止有细小裂纹的模具被使用，模具设计时应注意圆角半径。
2, the mold should be carefully checked to prevent the use of small cracks in the mold, mold design should pay attention to fillet radius.
3、经常检查冷床， 成品储放台，防止有坚硬突出物划伤制品。
3, always check the cooling bed, finished storage units, to prevent the hard protrusion scratch products.
4装料时应放置比制品软的隔条，运输和吊运都应平稳、细心操作。
4, loading should be placed than the soft strip of goods, transportation and lifting should be smooth, careful operation.
济南断桥铝门窗安装完成后也有可能因为各种各样的原因出现划伤，这时可以用干净的抹布擦干，根据划痕的深浅，用石膏等材料进行填平、打磨平滑后再做二次喷涂。
Ji'nan aluminum doors and windows installed may also appear scratched because of various reasons, then you can wipe with a clean cloth, the scratch depth, plaster material filled, sandpaper after two times spraying.
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