The selection of spacer strip mainly considers two factors: (1) heat conduction coefficient; (2) The effect on the sealing life of insulating glass. Starting from the heat conductivity, the spacer used for insulating glass can be divided into two categories: cold edge and hot edge. Cold edge refers to the traditional metal aluminum frame; The hot edge refers to the spacer strip whose material or structure is different from that of the traditional aluminum spacer strip, which is a rubber strip used in China (composed of a wavy aluminum strip plus a layer of sealant containing a desiccant). At present, most of the spacers used in our country are aluminum spacers, which belong to the cold edge class. It is characterized by beautiful shape, but easy to lead to dew or frost at the edge; The energy-saving effect of the whole window is reduced; As the name suggests, the hot edge spacer is a spacer designed to improve the thermal conductivity of the insulating glass edge, through the use of a small amount of metal or completely non-metallic materials to achieve energy-saving effects. From the Angle of sealing life analysis of hollow glass, there is no inevitable relationship between the hot edge and the cold edge and the sealing life of hollow glass. That is to say, the cold edge of the aluminum septum may have a longer life than the hot edge septum, and some hot edge septum sealing life may also be longer than the cold edge septum life. The key is to look at the spacing bar itself and other material configuration of insulating glass. Whether it is an aluminum strip (cold edge) or a sealing strip (hot edge), the width of its specification (the interval between the two glasses) is: 6, 9, 12, 15, 18mm, and its thickness is 6mm. (1) Selection and requirements of sealing rubber strip (hot edge). (2) The wall thickness of the aluminum spacer should be between 0.3 and 0.35mm, and the thickness should be uniform; Aluminum spacer strips need to be treated with positive or dirty treatment, if you need to bend, you must use good quality and high grade products to improve the aluminum strip and rate. (3) By the way, the Angle of the aluminum spacer matching molding, the surface should be treated clean, and the inner cavity of the aluminum spacer should be tightened properly. (4) There are two main categories of aluminum spacers: traditional four corner splicing type and improved continuous Angle type. In the specific practice, the four corner splice type is divided into two kinds of glue treatment and non-glue treatment at the joint. In general, the fewer the joints of the aluminum frame, the better the sealing performance, and the continuous long tube elbow aluminum frame with only one joint is much improved than the four corner splicing. However, if the four corner plug-in aluminum frame is coated with glue at the joint compared with the Angle type uncoated aluminum frame, the four corner plug-in type is better than the Angle type aluminum frame. The sealing strip is a insulating glass raw material integrating the support skeleton (wavy aluminum strip), sealing (butyl adhesive) and desiccant. Its biggest advantages are simple manipulation, less waste of raw materials, less staff, low governance costs, and good manipulation environment. The disadvantage is that the strip absorbs moisture slowly and requires special equipment. The selection of composite strips must consider the smooth surface, correct size, uniform and (wavy) aluminum strip quality, adhesive content and viscosity moderate.
Solid state high frequency welder for aluminum spacer bar production. HF welding equipment is an electrical and mechanical system used to realize HF welding. Hf welding equipment is composed of hf welding machine and tube forming machine, the aluminum spacer bar production speed can reach 200 m/min.
| Model |
width of section |
height of section |
length |
| 6mm |
5.5mm |
6.5mm |
5m |
| 8mm |
7.5mm |
6.5mm |
5m,6m |
| 9mm |
8.5mm |
6.5mm |
5m,6m |
| 10mm |
9.5mm |
6.5mm |
5m,6m |
| 12mm |
11.5mm |
6.5mm |
5m,6m |
| 14mm |
13.5mm |
6.5mm |
5m,6m |
| 15mm |
14.5mm |
6.5mm |
5m,6m |
| 16mm |
15.5mm |
6.5mm |
5m,6m |
| 18mm |
17.5mm |
6.5mm |
5m,6m |
| 19mm |
18.5mm |
6.5mm |
5m,6m |
| 20mm |
19.5mm |
6.5mm |
5m,6m |
| 22mm |
21.5mm |
6.5mm |
5m,6m |
| 24mm |
23.5mm |
6.5mm |
5m,6m |
| 26mm |
25.5mm |
6.5mm |
5m,6m |
| 29mm |
28.5mm |
6.5mm |
5m,6m |
| 32mm |
31.5mm |
6.5mm |
5m,6m |
Features of solid state high frequency welder
- Using MOSFET semiconductor , no life limit, which make sure the long life time of welder .
- Adopting SIEMENS PLC and HMI to connect the power supply and the production line to achieve real-time monitoring of the whole production line
- All kinds of protection functions. Including short circuit, open circuit , over current, over voltage etc.
- High speed welding but good welding quality . Energ-saving up to 25~30% compared with vacuum tube welder .
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