注塑模的排氣系統(tǒng)是由模腔和注塑體系的廢氣組成，它的組成成分是：模腔內(nèi)的氣流、通道內(nèi)的氣流、溫度較高的塑料中的濕氣。
Injection mold exhaust system is composed of cavity and injection system exhaust gas, it is composed of: air flow in the cavity, air flow in the channel, high temperature plastic moisture.
濟(jì)南注塑模具的放氣模式有：
Ji 'nan injection mold exhaust mode has:
①分模面（含開式通風(fēng)孔）
Parting surface (including open vent)
②鑲嵌表面；
② Mosaic surface;
③推桿或推管與內(nèi)模具嵌件之間的接觸面；
(3) the contact surface between the push rod or push tube and the internal mold insert;
④側(cè)向抽心裝置的排氣；
(4) lateral core pumping device exhaust;
⑤在困氣點(diǎn)增加一根排氣管或插頭；
⑤ Add a exhaust pipe or plug at the trapped gas point;
⑥通風(fēng)的鋼質(zhì)廢氣；
⑥ Ventilated steel exhaust gas;
⑦閥門的排放。
⑦ Valve discharge.
從濟(jì)南注塑模具的排氣系統(tǒng)中，常規(guī)的排氣系統(tǒng)設(shè)計(jì)應(yīng)遵循一些基本的規(guī)則。
From ji 'nan injection mold exhaust system, the conventional exhaust system design should follow some basic rules.
1.排氣口僅允許氣體排放，不允許塑膠溶解物外泄。
1. The exhaust port only allows gas discharge, not plastic dissolute leakage.
2.由于不同的塑料，其排氣孔的深度會(huì)因其粘性而變化。
2. Due to different plastics, the depth of the vent will vary due to its viscosity.
3.在型腔中應(yīng)設(shè)置排氣孔，在流道、冷液室中也應(yīng)設(shè)置排氣孔，以減少在澆鑄體系中的氣體流入模腔。
3. Exhaust holes should be set in the cavity, and exhaust holes should also be set in the flow passage and cold liquid chamber to reduce the gas inflow into the mold cavity in the casting system.
4.排氣口必須與模具框架相連通，特別是在經(jīng)過插頭、排氣插頭或排氣插頭時(shí)，必須要小心。
4. The exhaust port must be connected to the mold frame, especially when passing a plug, exhaust plug or exhaust plug, care must be taken.
5.盡可能采用銑床，處理后用320號(hào)砂紙進(jìn)行打磨，以刃痕，盡可能不要用研磨機(jī)來處理，研磨機(jī)的表面太平坦、太平滑。
5. Use milling machine as far as possible, grind with no.320 sandpaper after treatment to eliminate edge marks, do not use grinding machine as far as possible, the surface of grinding machine is too flat, too smooth.
6.在分型面上，通常在固定模嵌件上，應(yīng)在型腔的一邊。
6. On the parting surface, usually on the fixed die insert, should be on the side of the cavity.
7.在通風(fēng)管道的兩邊都要進(jìn)行45度的切削。
7. 45 degree cutting should be made on both sides of the ventilation duct.
Ji 'nan injection mold exhaust mode has:
