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Acrypet VRL-20 PMMA價格便宜相關介紹如下（三菱麗陽）：

受外來雜質污染
ACRYPET非常常用的模制產品領域根據其光學特性,以便任何外來物質,甚至通過極其分鐘的尺度,不能混合。混合的機會可能是建立在許多階段在成型過程中,可能會花多少時間來消除這些風險。然后,對于減少這些風險,不久以下檢查站必須有用得多。
(1)測量多少塵埃漂浮在你的造型植物。
(2)檢查是否ACRYPET大約在開箱或少謹慎處理。
(3)檢查是否與其他類型的混合樹脂預干燥室或與外國物質來自混合干燥板的滑動面及其支架可能會懷疑。
(4)檢查斗裝載機是否*清潔。
(5)檢查是否嚴重的金屬墻之間存在摩擦斗裝載機和ACRYPET金屬墻是否報廢。
(6)檢查是否煙霧和灰塵侵入從料斗干燥機的進氣口或是否導致外國物質存在于料斗干燥機本身。
(7)檢查是否存在任何其他類型的樹脂殘留在氣缸和噴嘴。
(8)檢查是否變形筒和螺桿。
(9)檢查是否泄漏的石油或粉狀金屬被發現的推釘模具或其他可移動的零件。

 Surface sink：

This is the sink of product surface that also called as sink mark. 
Preventive measures listed below are actually effective to avoid this.
(1) Set the injection pressure higher.
(2) Extend the high-pressure duration at injection.
(3) Set the cylinder temperature lower.
(4) Set the number of screw rotation at plasticization smaller.
(5) For the thin wall molding, set the mold temperature not to be so high.
(6) For a product having thickness variation, provide a gate additionally at the thick part.
(7) Increase resin feed amount to enable to compensate the shrinkage in the cavities at the injection step required to hold high-pressure. Check-valve is useful for this process.
(8) Uniform the surface temperature of mold.
(9) Enlarge the cross section of sprue, runner and gate, shorten the length of them to make the resin flow easier, and set the cylinder temperature lower.