Thermal Break Assembly

Engineered plastic thermal insulation strips are essential components for the insulation of modern window, door or metal curtain wall systems.Thermal insulation strips make a significant contribution to excellent insulation and savings

Raw material : PA66 POLYAMIDE STRIP

1:Knurling machine

Knurling is the first step in the production process,produce teeth in both alu profile 

To Knurl aluminium extrusion profile by hard gear .

 Proper knurling is required to insure guarantee shear strength of the composite profile

Teeth depth: between 0.15~0.3mm, distance between teeth center-lines should be no greater that 0.78mm

2:Strip feeding machine:

Thread the strip into the groove of the aluminium,the two knurled extrusions held together by thermal strip, this loose assembly gets transferred to the crimp or rolling machine

3: Rolling machine(Crimping machine):

The crimping process uses three sets of rollers, which put pressure on the aluminum groove and heat insulation tape.

To mechanically lock it in place, forming a bond between the two extrusions and the insulating strip.

The assembled aluminum strut profiles then act as a composite to transfer loads. over 500kg of pressure is applied in stages to crimp the aluminum. The first set of wheels applies 50 of the pressure while the decond set applies 100 percent. The third set of wheels help to straighten the extrusion and completes the crimping process