塑膠產品（pǐn）生產時都會遇（yù）到產品注（zhù）塑出（chū）來（lái）缺膠以及開裂的（de）問（wèn）題，今天山東模具製造廠家就為大家分析一下（xià）相關的應對方法，供大家參考使用。

During the production of plastic products, we will encounter the problems of lack of glue and cracking after injection molding. Today, Shandong mold manufacturers will analyze the relevant countermeasures for your reference.

模具（jù）注塑過（guò）程中產（chǎn）品缺膠

The product is short of glue during mold injection

原因一：料溫，模溫太低（dī）

Reason 1: the material temperature and mold temperature are too low

改善（shàn）對策：是提高，料管溫度和模（mó）具溫度。

Improvement measures: increase the temperature of the material pipe and the mold.

原因二：噴嘴，進膠點尺（chǐ）寸太小。

Reason 2: the size of nozzle and glue inlet point is too small.

改善（shàn）對策：適當加大噴嘴及（jí）進膠點。

Improvement measures: appropriately increase the nozzle and glue inlet point.

原因三：模具排氣不（bú）良。

Reason 3: poor mold exhaust.

改善（shàn）對策：可增（zēng）開排氣孔。

Improvement measures: open more exhaust holes.

原（yuán）因四：噴嘴冷頭或者堵塞

Reason 4: nozzle cold head or blockage

改善對策：可通過射（shè）嘴雜物，提高射嘴溫度來

Improvement countermeasures: it can be solved by removing sundries from the nozzle and increasing the temperature of the nozzle

原因（yīn）五：射出速度和（hé）壓力不夠

Reason 5: insufficient injection speed and pressure

改善對策：方法就是提高射速，射壓。

Improvement countermeasures: the solution is to increase the shooting speed and pressure.

模具注塑過程中產品開裂

Product cracking during mold injection

（1）加工壓力過大（dà）、速度（dù）過快、充料愈多、注射、保壓時間過長（zhǎng），都會造成內應力過大而開裂。

(1) Too much processing pressure, too fast speed, more filling, and too long injection and pressure holding time will cause excessive internal stress and cracking.

（2）調節開模速度與壓力防止快速強拉製件造成（chéng）脫模開裂。

(2) Adjust the mold opening speed and pressure to prevent demoulding cracking caused by rapid strong drawing.

（3）適當調高模具溫度，使製件易於脫模，適（shì）當調低料溫防止分解。

(3) Appropriately increase the mold temperature to make the parts easy to demould, and appropriately reduce the material temperature to prevent decomposition.

（4）預防由於熔接痕，塑料降解造成機械強度變低而出現開裂。

(4) Prevent cracking due to low mechanical strength caused by fusion marks and plastic degradation.

（5）適當使用脫模劑，注意（yì）經常模麵附著的氣霧等物質。

(5) Use release agent properly, and pay attention to often eliminate the aerosol and other substances attached to the mold surface.

（6）製件殘餘應（yīng）力，可通過在（zài）成型後立（lì）即進行退火熱處理來（lái）內應力而減少裂紋的生成。

(6) The residual stress of parts can be eliminated by annealing heat treatment immediately after forming to reduce the generation of cracks.

以上總結是比較有代表性的方麵，實際操作當中，可（kě）能還會有其（qí）它情況導致的注塑成型（xíng）問（wèn）題，具體根據實際情況。更多相關內容就來我（wǒ）們網（wǎng）站http://www.lsjtcyjt.cn谘（zī）詢（xún）吧。

The above summary is a representative aspect. In actual operation, there may be injection molding problems caused by other situations, which can be solved according to the actual situation. Come to our website for more relevant content http://www.lsjtcyjt.cn Consult.