1、 Injection mold

　　1如果模具型腔加工不好,如疤痕、微孔、磨損、粗糙等,必然會對塑料托盤、塑料托盤光澤不是很好,仔細(xì)處理模具,所以腔表面粗糙度很小,托盤廠家在必要的時候,可以拋光鍍鉻。

　　If the mold cavity processing is not good, such as scars, micropores, wear, roughness, etc., the luster of plastic tray and plastic tray will not be very good. Carefully handle the mold, so the surface roughness of the cavity is very small. The tray manufacturer can polish and chrome when necessary.

　　2. 如果型腔表面有油漬、水漬，或脫模劑過多，會使塑料托盤表面變暗、無光澤，對此，要及時油漬、水漬，并限制脫模劑的使用。

　　2. If there is oil stain or water stain on the surface of mold cavity, or too much release agent, the surface of plastic tray will be dark and lusterless. For this, oil stain and water stain shall be removed in time and the use of release agent shall be limited.

　　3.如果塑件的分型角度太小，分型困難，或者分型力太大，塑件的表面不好，要增加分型角度。

　　3. If the parting angle of the plastic part is too small, the parting is difficult, or the parting force is too large, and the surface of the plastic part is not good, the parting angle shall be increased.

　　4. 如果模具排氣不佳，過多的氣體滯留在模具內(nèi)，導(dǎo)致模具光澤不佳，為此，對模具排氣系統(tǒng)進(jìn)行檢查和修改。

　　4. If the mold exhaust is poor and too much gas is stuck in the mold, resulting in poor luster of the mold, check and modify the mold exhaust system.

　　5. 如果大門的橫截面積或跑步太小或突然變化,熔體受到太多的流動時剪切力,顯示的動態(tài)流動,導(dǎo)致可憐的光澤,這大門的橫截面積和跑步者應(yīng)適當(dāng)增加。

　　5. If the cross-sectional area of the gate or the running is too small or changes suddenly, the melt is subject to too much shearing force when flowing, indicating the dynamic flow, resulting in poor luster, the cross-sectional area of the gate and the runner should be increased appropriately.

　　二、注塑工藝

　　2、 Injection molding process

　　1. 如果注塑速度過小，塑件表面不致密，光澤不佳，可適當(dāng)提高注塑速度。

　　1. If the injection speed is too small, the surface of the plastic part is not dense and the gloss is not good, the injection speed can be increased appropriately.

　　2. 對于厚壁塑料件，如果冷凍不夠，表面會有毛，光澤會變暗，因此需要改進(jìn)冷凍系統(tǒng)。

　　2. For thick wall plastic parts, if the refrigeration is not enough, the surface will be hairy and the luster will be dark, so the refrigeration system needs to be improved.

　　3.保溫壓力不足，保溫時間過短，塑密度不夠，光澤不好。為此，應(yīng)增加保壓和保壓時間。

　　3. Insufficient heat preservation pressure, too short heat preservation time, insufficient plastic density and poor gloss. Therefore, it is necessary to increase the pressure holding time.

　　4. 如果熔體溫度過低，使流動性差，容易導(dǎo)致光澤不良，為此，應(yīng)適當(dāng)提高熔體溫度。

　　4. If the melt temperature is too low, the fluidity will be poor and the gloss will be poor. Therefore, the melt temperature should be increased properly.

　　5. 對于結(jié)晶樹脂制成的塑料零件，如PE、PP、POM等，不均勻的冷凍會導(dǎo)致光澤變差，因此需要改進(jìn)冷凍系統(tǒng)，使其冷卻均勻。

　　5. For plastic parts made of crystalline resin, such as PE, PP, POM, etc., uneven freezing will lead to poor luster, so it is necessary to improve the freezing system to make it cool evenly.

　　6. 如果注射速度過高，澆口的橫截面積過小，則澆口附近顏色較暗，光澤較差。為此，可以適當(dāng)降低注射速度，增加澆口的橫截面積。

　　6. If the injection speed is too high and the cross-sectional area of the gate is too small, the color near the gate is darker and the luster is poor. Therefore, the injection speed can be reduced and the cross-sectional area of the gate can be increased.

　　三、原材料

　　3、 Raw materials

　　1. 原料粒度差異大，塑化均勻困難，光澤差。為此，需要對原材料進(jìn)行篩選。

　　1. The raw material has large particle size difference, difficult to plasticize uniformly and poor luster. Therefore, raw materials need to be screened.

　　2. 原料中添加太多的原料或噴嘴材料，影響熔體的均勻塑化，導(dǎo)致光澤不良。為此，應(yīng)減少再原料或噴嘴材料的添加量。

　　2. Too many raw materials or nozzle materials are added to the raw materials, which will affect the uniform plasticization of the melt, resulting in poor luster. Therefore, it is necessary to reduce the amount of re raw materials or nozzle materials.

　　3.有些原料在調(diào)溫時會分解變色，導(dǎo)致光澤變差。因此，應(yīng)選擇耐高溫的原材料。

　　3. Some raw materials will decompose and change color when temperature is adjusted, resulting in poor luster. Therefore, high temperature resistant raw materials should be selected.

　　4. 原料中水或揮發(fā)性物質(zhì)含量過高，加熱時揮發(fā)成氣體，在模腔內(nèi)冷凝熔化，導(dǎo)致塑料件光澤不良。為此，原材料應(yīng)預(yù)先干燥。

　　4. The content of water or volatile substances in raw materials is too high, which volatilizes into gas when heated, condenses and melts in the mold cavity, resulting in poor luster of plastic parts. For this reason, the raw materials should be dried in advance.

　　5. 有些添加劑分散性太差，使塑料托盤的光澤很差，在這方面，應(yīng)將添加劑轉(zhuǎn)化為更好的流動性能。

　　5. Some additives have poor dispersion, which makes the luster of plastic tray very poor. In this regard, additives should be converted into better flow performance.

　　6. 原料中如有異物、雜質(zhì)或不溶性物質(zhì)混入，不能與原料均勻混合融合，造成光澤不良，應(yīng)事先嚴(yán)格排除這些雜質(zhì)。

　　6. If there are foreign matters, impurities or insoluble substances mixed in the raw materials, they cannot be mixed and fused evenly with the raw materials, resulting in poor luster, these impurities shall be strictly excluded in advance.

　　7. 如潤滑油用量過少，熔體流動性差，塑件表面不致密，使其光澤不好，為此，潤滑油用量應(yīng)適當(dāng)增加。

　　7. If the amount of lubricating oil is too small, the melt fluidity is poor, and the surface of the plastic part is not dense, so that its luster is not good, therefore, the amount of lubricating oil should be increased appropriately.

　　8. 根據(jù)模具的拋光程度是否符合要求，如果模具本身沒有問題，確定ABS的特性，可以選擇模具溫度高、速度快、壓力大;使用冷凍水也可以達(dá)到光滑的效果。

　　8. According to whether the polishing degree of the mold meets the requirements, if there is no problem with the mold itself, determine the characteristics of ABS, you can choose the mold with high temperature, fast speed and high pressure; using chilled water can also achieve smooth effect.

　　以上是托盤廠家為大家介紹的相關(guān)內(nèi)容，想要了解更多內(nèi)容，歡迎訪問網(wǎng)站：http://www.ntlongfa.cnThe above is the relevant content introduced by the tray manufacturer. To learn more, please visit the website: http://www.ntlongfa.cn