Insulating Aluminum Alloy Profile with Thermal Barrier Strip for Construction
1. Scope
This professional standard specifies the definition, classification, requirement, test methods, test rules, and marking, packing, transporting, storing of insulating aluminium alloy profile.
This standard is applicable to the architectural insulating aluminium alloy profile molding in the method of adopting barrier strip and rolling. (Abbreviate as insulating profile)，and it is suitable to use for the factures of architectural door/window and curtain wall, and so on.
2 Normative References
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments (excluding corrigendum content) to, or revisions of, any of these publications do not apply. However, it is encouraged for the parties using the latest edition of these documents who come to an agreement by referring to this standard. For undated references, the latest edition of the normative document referred to applies.
GB/T 3199 Wrought aluminium and aluminium alloy products-Packing marking transporting and storing
GB 5237 Wrought Aluminium Alloy--Extruded Profile for Architecture
JG/T 174 Thermal barrier strip for construction industry
3. Terms and definition, symbols3.1 Terms and definition
The following terms and definition are applicable to this standard.
3.1.1 Insulating aluminum alloy profile with thermal barrier strip
A compound profile with function of insulation, made from the structural connection of the processes related to gear hobbing, strip penetrating, rolling by using wrought aluminium alloy extruded profiles for architecture and thermal barrier strip for construction industry (Abbreviate as insulating barrier strip).
3.1.2 Assembly elasticity constant (c)
It indicates the elastic characteristics value after the wrought aluminium alloy extruded profiles for architecture combining with the architecture-used insulating barrier strip of rigid plastic.
3.1.3 Effective moment of inertia (Ief)
It indicates the inertial moment of insulating aluminium alloy profile.
3.1.4 Transverse tensile strength
At the direction of cross section of insulating profile, the transverse tensile of unit length which is put on the aluminium alloy profile.
3.1.5 Shear strength
The longitudinal shear strength of unit length, it is put at the direction of cross section of vertical insulating profile.
3.2 Symbols
See those specified in Table 1 for symbols.
Table 1 Symbols
Name Symbol Unit
sort transverse tensile strength Q N/mm
shear strength T N/mm
assembly elasticity constant c N/mm2
specimen length l mm
amount of deformation △h Mm
Shear resistance F1 N
Transverse pressure resistance F2 N
Abbreviations Low temperature LT ℃
High temperature HT ℃
Laboratory temperature RT ℃
Note: The transverse tensile strength and shear strength in the table is the strength inflicted on the unit length.
4. Classification and marking
4.1 Classification
See those specified in Table 2 for the classification.
Table 2 The classification and contracted notation of profile
Classification Insulating profile for door/window-used Insulating profile for curtain wall-used
Contracted notation W CW
4.2 Marking
4.2.1 Method of marking
It is formed of the classification of insulating profile (door/window, curtain wall), trademark and supply state of aluminium alloy profile, and element of insulating strip, and so on.
4.2.2 Demonstration of marking
Demonstration: Insulating profile for door/window-used, the trademark is two sticks of aluminium extruded profile with a supply state in T5 that manufactured by alloy 6063; the element of insulating barrier strip is a profile made compoundly in polyamide nylon 66 and 25％ of fiberglass ( PA66GF25).
Mark as: W--6063 T5---PA66GF25
5. Requirements
5.1 Material of insulating profile
5.1.1 The aluminium alloy profile shall comply with the requirements in GB 5237.
5.1.2 The insulating barrier strip shall comply with the requirements in JG/T 174.
5.2 Performance of insulating profile.
The transverse tensile strength and shear strength value of insulating profile shall comply with those specified in Table 3.
Table 3 The transverse tensile strength and shear strength value of insulating profile
Test condition Classification
W（window）
N/mm CW(curtain wall)
N/mm
laboratory temperature（normal temperature） 23℃±2℃ Q≥24
T≥24 Q≥30
T≥30
high temperature 90℃±2℃
low temperature -30℃±2℃
Lasting load test in high temperature Q≥24 Q≥30
Note 1: The insulating profile used for curtain wall shall be verified the mechanical property and bending deflection by calculating.
Note 2: The transverse tensile strength will not be affected after the shear of insulating profile is null and void.
Note 3: If the special demand is required, it is suitable to be determined through mutual consultation.
5.3 The permissible variation of dimension and quality of surface treatment after compounding.
The section of insulating profile shall comply with the requirements of detail of design. The dimensional variation of insulating profile used for door/window and curtain wall shall comply with the requirements of high and refined of GB 5237.1, the surface treatment shall comply with the requirements of GB 5237.2～GB 5237.6.
5.4 Appearance quality of compound section
For the compound section of insulating profile, it is allow appearing impression on the aluminium alloy profile, and no flaw appears on backing material of aluminium alloy.
6. Test methods
6.1 Test requirement
6.1.1 Preparation
To draw off a stick of profile randomly from the insulating profile of same batch and same specification, and sample 10 samples respectively from two ends and middle, the sample length is（100±1）mm.
6.1.2 Test temperature
Low temperature: LT -30℃±2℃
laboratory temperature: RT 23℃±2℃
High temperature: HT 90℃±2℃
6.1.3 Sample requirement
The sample shall be preserved for 48h at the environmental condition related to the temperature of 23℃±2℃ and relative humidity of 45％～55％.
6.2 Shear strength and assembly elasticity constant
6.2.1 Test program
At the required test temperature, it is suitable to place respectively the 10 samples on the testing device (As it is revealed in the picture).The acting force is transfer to profile through the rigid support. It is required to assure the rectangular distribution of load and no any touch with the insulating barrier strip.The feed rate is ( 1～5) mm/min. It is required to record the added peak load and relevant shear deformation value.
