At present, there are two forms of heat insulation aluminum profile: strip type heat insulation aluminum profile and glue injection type heat insulation aluminum profile. Plastic injection type thermal insulation aluminum profile technology originated in the United States, is currently in the international market of energy-saving doors and windows have been widely used, it has excellent insulation properties of polymer materials pouring into the Aluminum Alloy profile slot by bridge in central section and a heat insulation layer (commonly referred to as the bridge, so as to achieve heat insulation) good effect. The utility model has the advantages of high integral strength, good heat insulation effect, no siphon phenomenon, small sectional area, beautiful appearance and exquisite appearance, and is especially suitable for doors and windows of residential buildings, doors and windows of high-rise buildings.

The following of the glue injection type and wear strip type insulation aluminum profile for performance analysis:

I. Basic Performance Comparison

Because of the adoption of one-off extrusion technology, the aluminum alloy bar is not only reduced the quantity of the die, but also effectively avoids the defects of the process. The hardness of aluminum clamp is allowed to reach more than 13 and the hardness, wear process of aluminum hardness allowed in clamp hardness of about 10. Plastic injection type thermal insulation aluminum profile is a one-time pouring glue pouring curing aluminum insulation groove to form a heat insulation bridge, due to the high adhesion glue pouring, heat bridge and aluminum bonding as a whole, so the insulation aluminum strength of this process is high.

Strip insulation aluminum is two times through the extrusion, the insulation to wear two pieces of aluminum tank, after rolling, the material structure changes, stress the whole strength of the profile is poor, this process limits the strength of insulation materials not high, even sometimes section for a slightly larger hardness and cracks or fracture obviously become waste.

2.Sectional area of profile

The glue injection type heat insulation aluminum profile is compact and small and beautiful; and the bar shaped heat insulation aluminum section bar is required to overcome the distortion force because of the requirement that the profile hardness is not high, and the sectional area is large, and the overall appearance is relatively large.

3.Profile yield

Insulation aluminum models with the same length, strip and plastic injection type, because transverse strip area is large, the weight per meter of aluminum casting type is large, so the yield is less than the composite aluminum / plastic injection type is about 13%], about more than 1 square meters manufacturing doors and windows the consumption of 1-1.5 kg of aluminum.

4.High processing efficiency and high rate of finished products

In the process of injection plastic insulation material of high yield, stable and reliable process, almost no defective, especially suitable for large scale and continuous production, five class produce 6 - 8 tons, 10 class of 12 - 16 tons, which is a process to wear.

5.Plasticity (window type)

Now the doors and windows are varied, special-shaped doors and windows are more and more. Special-shaped doors and windows require plastic profile must be better. The cast type heat insulated aluminum profile can be processed into any shape of doors and windows, including a circular arc with relatively small radius. Because the connecting strip of the heat insulation strip and the aluminum section is not firm, when the aluminum section is big, the heat insulation strip is easy to be pulled out from the connecting groove of the aluminum section bar, so that the window shape of the utility model is limited.

6.Insulation (equivalent)

The cast type heat insulation aluminum profile is satisfactory in long time test and practice. Because the notch is solid, the air convection conduction factor is reduced, so the glue injection type insulation is better.

7.Inner and outer double color

The aluminum alloy part of the strip type heat insulation aluminum profile is extruded two times, and the inner and outer parts of the aluminum profile are separately processed by the surface, and the double color structure can be finished after the opening, the threading and the roll pressing of the two sections.

Pouring type double color forming process:

1）The inner and outer parts of the aluminum profile are separately processed by the surface of the two parts.

2) aluminum profile necessary connection, glue injection, cut bridge. The method has the advantages of fast compound speed, high efficiency, smooth profile formation, and even can effectively adjust the variant problem due to the backlog of profiles
      Through the comprehensive analysis and comparison, more people can understand the excellent comprehensive performance of glue injection type heat insulation aluminum profile, and make this technology more widely used and developed in the domestic and foreign markets.