模具注塑成型過程中可能會（huì）遇（yù）到這樣和那樣的（de）問題，最有（yǒu）可能遇到的缺陷會是什（shí）麽呢（ne）？筆者（zhě）告訴你，模具注塑成型過程中最有可能遇到缺陷如下1.注塑件缺（quē）陷的特征注塑（sù）過程不完全，因為模腔（qiāng）沒有填（tián）滿塑（sù）料或注塑（sù）過程缺少某（mǒu）些細節。
One problem or another may be encountered in the process of mold injection molding. What are the most likely defects? The author tells you that the defects most likely to be encountered in the process of mold injection molding are as follows: 1 Defects in injection molded parts are characterized by incomplete injection molding process, because the mold cavity is not filled with plastic or the injection molding process lacks some details.
2.可能（néng）出現問題的原因，(1).注塑速度不足。(2).塑料缺料(3).螺杆在行程結束處沒留（liú）下（xià）螺杆墊料。(4).運行時間變化（huà）。(5).射（shè）料缸溫度太低。(6).注塑壓力不足。(7).射嘴部分被封。(8).射嘴或（huò）射料缸外的加熱器不能運作。(9).注塑時間太短。(10).塑料貼在料鬥喉壁上。(11).注塑機容（róng）量太小（即注（zhù）射重量或塑化能力（lì））。(12).模溫（wēn）太低。 (13).沒有清理幹淨模（mó）具的防鏽油。(14).止退環損壞，熔料有倒流（liú）現象。
2. Possible causes of problems, (1) Insufficient injection speed. (2). Plastic material shortage (3) There is no screw pad left at the end of the stroke. (4). Running time changes. (5). The temperature of the injection cylinder is too low. (6). Insufficient injection pressure. (7). The nozzle is partially sealed. (8). The heater outside the nozzle or injection cylinder cannot operate. (9). Injection molding time is too short. (10). The plastic is pasted on the throat wall of the hopper. (11). The capacity of the injection molding machine is too small (i.e. injection weight or plasticizing capacity). (12). Mold temperature is too low. (13). There is no antirust oil to clean the mold. (14). The check ring is damaged and the molten material has backflow.
3.解（jiě）決方法：(1).增加（jiā）注塑速度。(2).檢查（chá）料鬥內的塑料量。(3).檢查是否正確設定了（le）注（zhù）射（shè）行程，需要的（de）話進行（háng）更改。(4).檢查止逆閥是否磨損或出現裂縫。(5).檢查運作是否穩定。(6).增加熔膠溫度。(7).增（zēng）加背壓（yā）。(8).增加注塑速度（dù）。(9).檢查射（shè）嘴孔有沒有異物或未塑化塑料。(10).檢查所有的加熱器外層用安培表檢（jiǎn）驗能量輸出是否正確。(11).增加螺杆向前時間（jiān）。(12).增料鬥喉區的冷卻量，或降低（dī）射料缸後區溫度（dù）。(13).用較大的注塑機（jī）。(14).適當升高模溫。(15).清理幹（gàn）淨模具內的防鏽劑。(16).檢查或更換止退環。
3. Solutions: (1) Increase injection speed. (2). Check the amount of plastic in the hopper. (3). Check whether the injection stroke is set correctly and change it if necessary. (4). Check the check valve for wear or cracks. (5). Check whether the operation is stable. (6). Increase the melt temperature. (7). Increased back pressure. (8). Increase injection speed. (9). Check the nozzle hole for foreign matter or unplasticized plastic. (10). Check the outer layer of all heaters and check whether the energy output is correct with an ammeter. (11). Increase the screw forward time. (12). Increase the cooling capacity in the throat area of the hopper or reduce the temperature in the rear area of the injection cylinder. (13). Use a larger injection molding machine. (14). Properly raise the mold temperature. (15). Clean the rust inhibitor in the mold. (16). Check or replace the retaining ring.
注塑（sù）件尺寸差異：1.注塑件缺陷的特征：注塑過程中重量尺（chǐ）寸的變化超過了模具、注塑機、塑料組合的生產能力。2.可能出現問題的原（yuán）因：(1).輸（shū）入射料（liào）缸內的塑（sù）料不（bú）均（jun1）。(2).射料缸溫度或波動的範圍太大。(3).注塑機容量太小。(4).注（zhù）塑壓力不穩定。(5).螺杆複位不穩定。(6).運作時間的變化、溶（róng）液黏度不一致（zhì）。(7).注（zhù）射速度（流量控製）不（bú）穩定。(8).使用了不適合模具的塑料品種。(9).考慮模溫、注射壓力、速度、時間和保（bǎo）壓（yā）等對產（chǎn）品的影響。
Dimensional difference of injection molded parts: 1 Defect characteristics of injection molded parts: the change of weight and size in the injection molding process exceeds the production capacity of mold, injection molding machine and plastic combination. 2. Possible causes of problems: (1) The plastic in the input injection cylinder is uneven. (2). The temperature or fluctuation range of the injection cylinder is too large. (3). The capacity of the injection molding machine is too small. (4). The injection pressure is unstable. (5). Unstable screw reset. (6). The change of operation time and solution viscosity are inconsistent. (7). The injection speed (flow control) is unstable. (8). Plastic varieties that are not suitable for molds are used. (9). The effects of mold temperature, injection pressure, speed, time and pressure holding on the product are considered.
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