Gas assisted injection molding is an innovation of the traditional injection molding technology. This advanced technology is to inject inert gas (usually nitrogen) directly into the mold cavity through the segmented pressure control system for plasticization, so that the internal expansion of the plastic parts leads to hollowness, but it still maintains the integrity of the product surface.

气体辅助注塑技术在注塑行业中备受广泛应用，可应用于各种塑胶产品上，例如电视机或音响外壳、各类型塑胶盒和玩具、汽车塑料产品、橱具、家庭电器和日常用品等等。

Gas assisted injection molding technology is widely used in the injection molding industry. It can be applied to all kinds of plastic products, such as TV or audio shell, various types of plastic boxes and toys, automotive plastic products, kitchen utensils, household appliances and daily necessities, etc.

同传统注射成型工艺相比，气体辅助注塑技术具有以下优点:可节省高达50%塑胶原料；缩短产品生产周期时间；降低注塑机的锁模压力；降低模腔内的压力，减少模具的损耗和提高模具的工作寿命，从而降低模具的投资成本；降低产品的内应力，解决产品表面缩痕的问题；简化产品繁琐的设计；降低注塑机的耗电量，提高注塑机的工作寿命，降低生产成本。

Compared with simultaneous interpreting, the gas assisted injection molding technology has the following advantages: it can save up to 50% of plastic raw materials. Shorten the product production cycle time; Reduce the clamping pressure of injection molding machine; Reduce the pressure in the cavity, reduce the loss of the mold and improve the working life of the mold, so as to reduce the investment cost of the mold; Reduce the internal stress of the product and solve the problem of shrinkage mark on the surface of the product; Simplify the complicated design of products; Reduce the power consumption of injection molding machine, improve the working life of injection molding machine, reduce production costs.

市面上的瓶装氮气和液氮都比较昂贵且费心费力费时，使用PSA制氮机是比较好的选择。PSA制氮机以取之不竭用之不尽的空气为原料，以碳分子筛作为吸附剂，运用变压吸附原理，利用碳分子筛对氧和氮的选择性吸附而使氮和氧分离。

Bottled nitrogen and liquid nitrogen on the market are expensive and time-consuming, so PSA nitrogen generator is a better choice. PSA nitrogen generator uses inexhaustible air as raw material, carbon molecular sieve as adsorbent, using pressure swing adsorption principle, using carbon molecular sieve to selectively adsorb oxygen and nitrogen to separate nitrogen and oxygen.

与传统制氮法相比，它具有工艺流程简单、自动化程度高、产气快(15～30分钟)、能耗低、氮气纯度在线检测，操作维护方便、运行成本较低、装置适应性较强等特点。PSA制氮机是一次投资用气，一键开机，实现无人职守，可以节省人工，节省成本。

Compared with the traditional nitrogen production method, it has the advantages of simple process, high degree of automation, fast gas production (15-30 minutes), low energy consumption, on-line detection of nitrogen purity, convenient operation and maintenance, low operation cost and strong adaptability. PSA nitrogen machine is a permanent investment in gas, a key boot, unattended, can save labor, save costs.