注塑外模具廠（chǎng）在注塑生產過程中常常遇到產品頂白的現（xiàn）象，很（hěn）多注塑廠家遇上這種頂白現象時，為了趕貨隻好作臨時的（de）解決辦法就是使用脫模劑。但使用脫模劑又會直接影響（xiǎng）產品的外觀，甚至用多了會破產品（pǐn）的塑料性質從而降（jiàng）低產品的日（rì）後使用（yòng）功效。而且（qiě）使用脫模劑也增加了生產成本。所以，加工廠要解決產品頂白現（xiàn）象建議是從模具頂出結構入手。

Injection mold factories often encounter the phenomenon of product top white in the injection production process. When many injection mold manufacturers encounter this phenomenon, they have to make a temporary solution in order to catch up with the goods is to use release agent. However, the use of release agent will directly affect the appearance of the product, and even more use will damage the plastic properties of the product, thus reducing the future use efficiency of the product. And the use of release agent also increases the production cost. Therefore, the suggestion for the processing plant to solve the product top white phenomenon is to start with the mold ejection structure.

廠家要徹底解決產（chǎn）品頂白現象，必（bì）須檢查（chá）在頂白的部位是否能加頂針，是否有骨位沒有省光省滑，如果有骨位還存在火花紋沒省幹淨是易造成（chéng）頂白的。再有一個原因是（shì）產品（pǐn）某部位（wèi）出模斜（xié）度不夠，如（rú）果是這（zhè）個原因就必須重新（xīn）加工，保證有足夠的（de）出模斜度才可以切斷頂白現象的，否則任你如何省光省滑或加頂針都（dōu）無法徹底解決頂白的。

In order to completely solve the problem of product top whiteness, the manufacturer must check whether a thimble can be added at the top whiteness part, whether there is a bone position that does not save light and slip, and if there is a bone position that still has spark lines, it is easy to cause top whiteness. Another reason is that a certain part of the product has insufficient mold inclination. If this is the reason, it must be reprocessed to ensure that there is enough mold inclination before the top white phenomenon can be cut off. Otherwise, no matter how you save light and slip or add a thimble, the top white problem can not be completely solved.

塑件出現頂白現象的原因主要是製品粘模力較大,而（ér）塑件上（shàng）頂出部位致頂杆頂出位（wèi）置產生白痕。山東模具製造廠家（jiā）給您分析下具體的原因和改善方法（fǎ），如下：

The main reason for the top white phenomenon of plastic parts is that the product has a large mold adhesion force, and the top part of the plastic parts causes white marks on the top position of the ejector rod. The Shandong mold manufacturer will analyze the specific causes and improvement methods for you, as follows:

1，後模溫度太低或（huò）太高：調（diào）整（zhěng）合適的模溫。

1. The rear mold temperature is too low or too high: adjust the appropriate mold temperature.

2，頂出速（sù）度過快（kuài）：減慢頂出速度。

2. Too fast ejection speed: slow down the ejection speed.

3，有脫模（mó）倒角：檢修模具（jù）(拋光)。

3. With demoulding chamfer: repair the mold (polishing).

4，成品頂出不平衡（斷頂（dǐng）針板彈簧）：檢修模具（使（shǐ）頂出平（píng）衡）。

4. The ejection of finished products is unbalanced (the ejector pin plate spring is broken): repair the mold (make the ejection balanced).

5，頂（dǐng）針數量不夠或位（wèi）置不當：增加（jiā）頂針數量或改變頂針位置。

5. Insufficient number or improper position of ejector pins: increase the number of ejector pins or change the position of ejector pins.

6，脫模時模具產生真（zhēn）空現（xiàn）象：清理頂針孔內汙漬，改善進氣效果。

6. Vacuum occurs in the mold during demoulding: clean the dirt in the ejector pin hole to improve the air inlet effect.

7，成品骨位（wèi）、柱位粗糙（倒扣）：拋（pāo）光各骨位（wèi）及柱位。

7. The finished bone position and column position are rough (inverted): polish each bone position and column position.

8，注射壓（yā）力或保壓壓（yā）力過大：適當降低其（qí）壓力。

8. Excessive injection pressure or holding pressure: reduce the pressure appropriately.

9，成品後（hòu）模脫模斜度過小：增大（dà）後模脫模斜度。

9. The demoulding slope of the finished product rear mold is too small: increase the demoulding slope of the rear mold.

10，側滑塊動作時間或位置不當：檢修模具（使（shǐ）抽芯動作正常）。

10. Improper action time or position of the side slider: repair the mold (make the core pulling action normal).

11，頂針麵積太小或頂出速度過快：增大頂針麵積或減慢頂出（chū）速度。

11. The ejector pin area is too small or the ejection speed is too fast: increase the ejector pin area or slow down the ejection speed.

12，末段的注射速度過快（毛（máo）刺）：減慢（màn）較後一段注射速度。

12. The injection speed of the last section is too fast (Burr): it slows down the injection speed of the later section.

以（yǐ）上便是注塑加工產品出現頂白的原因和解（jiě）決（jué）方法，那麽如果您想了解更多信息，就來關注我們網站www.lsjtcyjt.cn吧，讓您滿載而歸！

These are the reasons and solutions for the top white of injection molding products. If you want to learn more, please follow our website www.sdlqmj COM, let you return with a full load!