中空玻璃生产线分内合片和内外合片中空玻璃生产线，这也是近几年随着三层和大的幕墙玻璃而出现的，那么区别就在这里了，外合片中空玻璃生产线做幕墙玻璃和三层玻璃时比较好用，这需要从他们的合片方式说起。
Insulating glass production line is divided into inner and outer laminated insulating glass production line, which also appears in recent years with three-layer and large curtain wall glass, so the difference is here. Outer laminated insulating glass production line is easier to use when it is used as curtain wall glass and three-layer glass, which needs to start from their laminated mode.
先简单说下结构的不同，内合片中空玻璃生产线，技术比较成熟，有着十余年的发展经验了，性能较为稳定，内合片简单，就是在合片仓里进行合片的方式，就是内合片，我们都知道，一般的中空玻璃生产线都由六段组成：放置玻璃段、清洗风干段、停留检测段、放置铝隔条段和合片仓、下片段。而，内外合片时，合片仓前面再加一段，叫外合片段。这就是内合片和内外合片中空玻璃生产线在结构上的不同。

First of all, let's talk about the difference in structure. The production line of laminated hollow glass has mature technology and more than ten years of development experience. Its performance is relatively stable. The laminated hollow glass is simple, which is the way of laminating in the lamination bin. As we all know, the general production line of hollow glass consists of six sections: placing glass section, cleaning and air drying section, staying and testing section Place the aluminum spacer segment, the laminating bin and the lower segment. In the case of internal and external integration, a segment is added in front of the integration bin, which is called external integration segment. This is the structural difference between the inner and outer laminated insulating glass production lines.

内合片中空玻璃生产线只能选用内合的方式进行合片，而内外合片中空玻璃生产线可以选内合和外合两种方式合片，当然了，包含外合的中空玻璃生产线价格更贵一些。
The production line of inner laminated insulating glass can only choose the way of inner laminated, while the production line of inner and outer laminated insulating glass can choose two ways of inner laminated and outer laminated. Of course, the production line of outer laminated insulating glass is more expensive.
再从功能上展开说一下，内合片中空玻璃生产线进行合片时，需要靠吸盘将一块玻璃吸起来等待二块玻璃到来，到了之后，直接压合成型，速度快，定位采用两边定位，定位准。然而，生产三层中空玻璃时，需要压合两次，等待三块玻璃的时候，二块玻璃和一块玻璃都是需要靠吸盘吸起来的，他们中间是铝隔条上的丁基胶粘合在一起的，如果时间过久或者丁基胶性能弱点，在等待三块玻璃时，就有可能发生滑片，造成坠落，破损.
From the functional point of view, when the inner laminated insulating glass production line is laminating, one piece of glass needs to be sucked up by the suction cup, waiting for the arrival of two pieces of glass. After arriving, it can be directly pressed to form, which is fast and accurate. However, in the production of three-layer insulating glass, it needs to be pressed twice. When waiting for three pieces of glass, two pieces of glass and one piece of glass need to be sucked up by suction cup. They are glued together by butyl glue on the aluminum partition strip. If the time is too long or the butyl glue performance is weak, sliding pieces may occur when waiting for three pieces of glass, causing falling and damage
这就是内合片中空玻璃生产线在做三层中空玻璃时的弱点，就需要用到外合片进行中空玻璃的生产，外合片不靠吸盘，整段带着玻璃往后退，就不存在滑落的问题了。再就是大片中空玻璃的生产，比如幕墙玻璃，比较大，比较重，如果靠吸盘，吸附能力有限，如果时间过久，也会造成滑落，选用外合就不存在这样的问题。
This is the weakness of the inner laminated insulating glass production line when making three-layer insulating glass. It needs to use the outer laminated insulating glass to produce insulating glass. The outer laminated insulating glass does not rely on the suction cup, and the whole section with the glass goes back, so there is no sliding problem. And then there is the production of large pieces of insulating glass, such as curtain wall glass, which is relatively large and heavy. If it depends on the suction cup, the adsorption capacity is limited. If it takes too long, it will also cause sliding. There is no such problem in the selection of external composite.
倘若做一些小玻璃，1800以下的中空玻璃，如果三层做的还不是很多，那么，选用内合片中空玻璃生产线比较合适，如果较大较重玻璃，做三层玻璃比较多，还是根据需要加工玻璃尺寸选择内外合片比较稳妥。
If you want to make some small glass, the insulating glass below 1800, if you don't have a lot of three layers, then it's more appropriate to choose the production line of laminated insulating glass. If you want to make more three layers of large and heavy glass, it's more stable to choose the inner and outer laminated glass according to the required processing glass size.