Thermal Insulation Strip for Aluminum Doors is installed between separated aluminum sections of a thermally broken door profile. It creates a polyamide barrier within the frame or sash, reducing the continuous aluminum path between the exterior and interior sides.
Because aluminum doors include moving sashes, larger frame sections, hardware areas, and repeated opening and closing, the thermal insulation strip needs to work reliably with the profile's mechanical connection system. Its cross-section and locking geometry therefore need to match the aluminum extrusion accurately.
Door profiles can have different groove configurations depending on the frame construction, sash design, hardware arrangement, and system dimensions. A Thermal Insulation Strip for Aluminum Doors may not be suitable for another.
Jinxing can manufacture the strip according to the required:
· Groove width and depth
· Strip width and thickness
· Locking geometry
· Profile insertion position
· Cross-sectional shape
· Finished length
For a new door system, the aluminum extrusion drawing can be used to confirm the required strip section before production.
The strip uses PA66 reinforced with 25% glass fiber. This provides the rigidity and mechanical strength needed for the polyamide component to remain engaged with the aluminum profile after assembly.
The strip geometry can incorporate the required locking or engagement features so that it works with the corresponding aluminum extrusion during profile joining.
Stable extrusion and calibration help maintain the specified profile dimensions, supporting consistent insertion across production batches.
The thermal insulation strip forms part of the fixed profile assembly rather than the moving hardware itself. Its mechanical properties and dimensional stability help maintain the designed connection between aluminum sections during normal door operation.
The material can be evaluated for thermal aging, tensile properties at different temperatures, and linear expansion according to applicable testing requirements.
The Thermal Insulation Strip for Aluminum Doors is typically installed into the prepared grooves of the aluminum sections before the profile is mechanically joined.
The assembly sequence generally involves:
Groove Preparation → Strip Insertion → Position Alignment → Mechanical Rolling → Profile Inspection
The strip dimensions need to be compatible with the insertion equipment and rolling parameters. Poor dimensional matching can make insertion difficult or affect the final connection between the aluminum sections.
The exact position of the insulation strip depends on the door profile system. It may be incorporated into the main frame or sash profile where the aluminum section is divided into thermally separated parts.
For profiles with different cross-sections, the Thermal Insulation Strip for Aluminum Doors may require specific locking edges, offsets, or other geometric features. This is why Jinxing treats the aluminum extrusion as the primary reference when developing a door insulation strip.
Jinxing primarily uses PA66 GF25 for aluminum door thermal insulation strips.
The glass fiber reinforcement increases the stiffness of the PA66 material and helps the strip withstand the mechanical demands associated with profile assembly. For customized projects, material requirements can be confirmed according to the customer's technical specification and applicable standards.
For aluminum door applications, the important inspection points include:
|
Inspection Item |
Purpose |
|
Cross-section |
Confirms the strip matches the aluminum extrusion |
|
Width and thickness |
Controls insertion and profile engagement |
|
Surface condition |
Identifies defects affecting processing |
|
Tensile properties |
Evaluates mechanical strength |
|
Hardness |
Checks material consistency |
|
Thermal aging |
Evaluates performance after heat exposure |
|
Linear expansion |
Assesses dimensional behavior with temperature changes |
Testing requirements can be agreed according to the customer's application and applicable standards.
When a standard I-Type, C-Type, or T-Type strip does not match the door extrusion, Jinxing can develop a customized section.
Customers can provide:
Aluminum profile drawing
The most direct reference for determining the required strip geometry.
Existing strip sample
Useful when replacing an existing supplier or reproducing a current profile.
Section dimensions
Suitable when a complete engineering drawing is not available.
Jinxing can then proceed with section confirmation, tooling development, trial production, and mass production.
It is a polyamide profile installed between separated aluminum sections in a thermally broken door system to interrupt the direct metal connection between the two sides.
PA66 provides the polymer base, while 25% glass fiber reinforcement increases rigidity and mechanical strength for profile assembly.
Yes. Jinxing can develop different cross-sections and dimensions according to the aluminum door extrusion.
Provide the aluminum profile drawing or a physical strip sample. The groove dimensions and locking geometry can then be checked against the proposed strip section.
Yes. Non-standard sections can be developed according to drawings, samples, or confirmed technical dimensions.
Yes, it forms part of the thermal separation within the aluminum frame. However, the thermal performance of a complete aluminum door also depends on the frame design, glazing, seals, hardware, and other components.
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