手板模型定制加工行業里面，要想不出錯也是不可能的，那么出錯后我們應該如何補救呢？一般可用補救材料填在過切或錯切的地方。在手板行業中常用的補救材料是原子灰或502膠水混合痱子粉。

In the hand model customization processing industry, it is impossible to make no mistakes, so how should we remedy the mistakes? Generally, remedial materials can be used to fill the over cut or wrong cut places. The commonly used remedial material in the hand board industry is atomic ash or 502 glue mixed with prickly heat powder.

502膠水混合痱子粉：取適量痱子粉加入502膠水調成稀糊狀即可。將調好的材料填入過切的地方待干后再補加工一下。

502 glue mixed with prickly heat powder: take an appropriate amount of prickly heat powder and add 502 glue to make it into a thin paste. Fill the adjusted material into the over cut place and wait for it to dry before processing.

補救前提是：工件為非透明件，透明工件是不許有粘接痕跡的。一般都是針對塑膠件進行補救，非透明件有：ABS，POM，PA。透明件有：PMMA，PC。

The remedy premise is: the workpiece is non transparent, and the transparent workpiece is not allowed to have bonding traces. Generally, plastic parts are used for remedy. Non transparent parts include ABS, POM, PA. Transparent parts: PMMA, PC.

原子灰為膠狀粘稠物，需要配合催干劑才能凝固。進口原子灰較貴，如：德國Bentex-autodody-filler，為100多/250克；國產原子灰較便宜，為50多/850克。

Atomic ash is a colloidal viscous substance, which needs to be combined with a drying agent to solidify. The price of imported atomic ash is relatively expensive, such as bentex autodody filler in Germany, which is more than 100 /250 grams; Domestic atomic ash is cheaper, with a price of more than 50 /850 grams.

另外在加工過程中，以及在凝固的時候會把澆口開到比較薄的區域，在這里將冷鐵放上去了以后，手板上各個部位的溫度都是一樣的，就可以在同時完成凝固了。

In addition, during processing and solidification, the gate will be opened to a relatively thin area. After the cold iron is placed here, the temperature of all parts on the hand board is the same, and solidification can be completed at the same time.

通過這種方式來進行加工，雖然可以減少手板當中的內應力，但是另外也可能會有縮孔的問題。因此，在同一時間內完成凝固處理大部分是用在一些收縮不是很大的鑄鐵等材料當中。因為這些材料一般是不會有縮孔的問題的。

Processing in this way can reduce the internal stress in the hand board, but there may also be shrinkage problems. Therefore, most of the solidification treatment completed at the same time is used in some materials such as cast iron with small shrinkage. Because these materials generally do not have the problem of shrinkage.

濟南手板加工人員提示，尤其是PMMA也是我們俗稱的有機玻璃，因為材料性能的特殊性，很脆易裂，又不能有粘接痕跡，所以在加工過程中要特別注意，一旦下刀過快，整個材料有可能會斷裂，那么整個手板就報廢，因此PMMA手板樣件也是較其他手板較貴的。

Jinan hand board processing personnel pointed out that PMMA, in particular, is also commonly known as plexiglass. Because of the particularity of material properties, it is brittle and easy to crack, and there can be no bonding traces, so special attention should be paid in the processing process. Once the cutting is too fast, the whole material may break, and then the whole hand board will be scrapped. Therefore, PMMA hand board samples are also more expensive than other hand boards.

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