盛業(yè)塑膠原料有限公司
主營(yíng)產(chǎn)品: 工程塑料,通用塑料,熱塑性彈性體 |
盛業(yè)塑膠原料有限公司
主營(yíng)產(chǎn)品: 工程塑料,通用塑料,熱塑性彈性體 |
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更新時(shí)間:2018-05-15 17:41:41瀏覽次數(shù):237
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我公司銷售的材料均為*材料,咨詢采購(gòu)! 吳生 186 6517 6937
受外來(lái)雜質(zhì)污染
ACRYPET非常常用的模制產(chǎn)品領(lǐng)域根據(jù)其光學(xué)特性,以便任何外來(lái)物質(zhì),甚至通過(guò)極其分鐘的尺度,不能混合。混合的機(jī)會(huì)可能是建立在許多階段在成型過(guò)程中,可能會(huì)花多少時(shí)間來(lái)消除這些風(fēng)險(xiǎn)。然后,對(duì)于減少這些風(fēng)險(xiǎn),不久以下檢查站必須有用得多。
(1)測(cè)量多少塵埃漂浮在你的造型植物。
(2)檢查是否ACRYPET大約在開(kāi)箱或少謹(jǐn)慎處理。
(3)檢查是否與其他類型的混合樹(shù)脂預(yù)干燥室或與外國(guó)物質(zhì)來(lái)自混合干燥板的滑動(dòng)面及其支架可能會(huì)懷疑。
(4)檢查斗裝載機(jī)是否*清潔。
(5)檢查是否嚴(yán)重的金屬墻之間存在摩擦斗裝載機(jī)和ACRYPET金屬墻是否報(bào)廢。
(6)檢查是否煙霧和灰塵侵入從料斗干燥機(jī)的進(jìn)氣口或是否導(dǎo)致外國(guó)物質(zhì)存在于料斗干燥機(jī)本身。
(7)檢查是否存在任何其他類型的樹(shù)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(fā)現(xiàn)的推釘模具或其他可移動(dòng)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.