GB/T 23615.1-2017 English PDF (GBT23615.1-2017)

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GB/T 23615.1-2017: Thermal barrier materials for architecture aluminium alloy extruded profiles -- Part 1: Polyamide profiles
GB/T 23615.1-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.60
H 30
Replacing GB/T 23615.1-2009
Thermal barrier materials for architecture aluminum
alloy extruded profiles - Part 1. Polyamide profiles
ISSUED ON. OCTOBER 14, 2017
IMPLEMENTED ON. MAY 01, 2018
Issued by. General Administration of Quality Supervision Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 8
4 Requirements ... 8
5 Test methods ... 15
6 Inspection rules ... 20
7 Marking, packaging, transportation, storage and quality certificate ... 26
8 Order (or contract) content ... 28
Appendix A (Normative) Terms and definitions of polyamide profiles typical
defects ... 29
Appendix B (Normative) Microstructure test method ... 33
Appendix C (Normative) Test method for stress cracking performance of shaft
pin ... 36
Appendix D (Normative) Test method for longitudinal tensile strength values at
room temperature, tensile facture at elongation at room temperature, tensile
modulus at room temperature ... 39
Appendix E (Normative) Test method for transverse tensile characteristic value
at room temperature, transverse tensile characteristic value at high temperature
and transverse tensile characteristic value at low temperature ... 43
Appendix F (Normative) Aluminum alloy profile composite adaptability test
method ... 46
Thermal barrier materials for architecture aluminum
alloy extruded profiles - Part 1. Polyamide profiles
1 Scope
This part of GB/T 23615 specifies the terms and definitions, requirements, test
methods, inspection rules, marking, packaging, transportation, storage, quality
certificate and order form (or contract) of polyamide profiles.
This part applies to the thermal barrier materials for architecture aluminum alloy
extruded profiles - Polyamide profiles.
The extruded profiles of thermal barrier materials of other types can make
reference to this part.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 1033.1-2008 Plastics - Methods for determining the density of non-
cellular plastics - Part 1. Immersion method liquid pycnometer method and
titration method
GB/T 1040.1 Plastics - Determination of tensile properties - Part 1. General
principles
GB/T 1043.1 Plastics - Determination of Charpy impact properties - Part 1.
Non-instrumented impact test
GB/T 2035 Terms and definitions for plastics
GB/T 2411 Plastics and ebonite - Determination of indentation hardness by
means of a durometer (Shore hardness)
GB/T 5237.1-2017 Wrought aluminum alloy extruded profiles for architecture
- Part 1. Mill finish profiles
GB/T 6682 Water for analytical laboratory use - Specification and test
methods
10%.
5.2 Specimen pretreatment
All specimens are placed in a common drying oven at 140 °C ± 2 °C for 6 h and
then taken out and placed in a desiccator at 23 °C ± 2 °C for at least 2 h.
5.3 Test temperature
Polyamide profile test temperature. room temperature 23 °C ± 2 °C, low
temperature -30 °C ± 2 °C, high temperature 90 °C ± 2 °C.
5.4 Components
The glass fiber content is measured by the direct calcination method (Method
A) as specified in GB/T 9345.1-2008, the calcination temperature is 750 °C.
5.5 Ash
5.5.1 After calcination, the residue is placed under natural scattered light, and
the color of the glass fiber is observed with normal vision and photographed.
5.5.2 Then the residue is placed under a microscope equipped with a camera,
select the magnification at 50×, observe the morphology of the glass fiber and
record the photo.
5.6 Microstructure
The microstructure is tested in accordance with the method as specified in
Appendix B.
5.7 Fracture morphology
The fracture that has been transversely stretched at room temperature is placed
under a scanning electron microscope equipped with a camera. The
magnification shall be selected at 100× ~ 500×, a representative field of view is
selected for photo recording.
5.8 Dimensional deviation
The dimensions are measured with a Vernier caliper with a precision of 0.02
mm, a micrometer of 0.01 mm or a dedicated instrument.
5.9 Performance
5.9.1 Density
The density test is carried out in accordance with the impregnation method as
specified in GB/T 1033.1-2008.
2 - Pendulum;
3 - Impact blade;
4 - Specimen;
5 - Support.
Figure 9 -- Schematic diagram of the non-notched impact strength test
device
5.9.6 Longitudinal tensile characteristic values at room temperature,
longitudinal tensile elongation at break at room temperature, longitudinal
tensile modulus at room temperature
The longitudinal tensile characteristic values at room temperature, longitudinal
tensile elongation at break at room temperature, longitudinal tensile modulus at
room temperature are determined in accordance with the method as specified
in Appendix D.
5.9.7 Transverse tensile characteristic value at room temperature,
transverse tensile characteristic value at high temperature, transverse
tensile characteristic value at low temperature
The transverse tensile characteristic value at room temperature, transverse
tensile characteristic value at high temperature, transverse tensile
characteristic value at low temperature are determined in accordance with the
method as specified in Appendix E.
5.9.8 Water resistance
5.9.8.1 Water resistance test method is divided into boiling water test method
and normal temperature immersion test method. The test method is agreed by
the supplier and the buyer, and is indicated in the order form (or contract). When
not specified or during arbitration test, it shall be performed in accordance with
the normal temperature immersion test method.
5.9.8.2 Boiling water test method. Put the specimen into the grade III water as
specified in GB/T 6682, boil it for 4 h, then take out the specimen and place it
at room temperature for 48 h. Determine the transverse tensile characteristic
value at room temperature of the specimen in accordance with Appendix E.
5.9.8.3 Normal temperature immersion test method. Place the specimen in the
grade III water (temperature 23 ± 2 °C) as specified in GB/T 6682 for 1000 h,
then take the specimen out, place it at room temperature for 48 h, determine
the transverse tensile characteristic value at room temperature in accordance
with Appendix E.
5.9.9 Thermal aging performance
5.9.9.1 Hang the specimen on the specimen holder of the thermal aging box,
heat the thermal aging box to 140 °C ± 2 °C for 1000 h, then take out the
specimen and leave it at room temperature for not less than 24 h.
5.9.9.2 Take one specimen into the transverse stretching fixture, determine the
maximum transverse tensile strength of the specimen in accordance with
E.4.1.2 ~ E.4.1.4 of Appendix E.
5.9.9.3 Repeat 5.9.9.2 until the test of other specimens is completed.
5.9.9.4 Calculate the maximum transverse tensile strength of each specimen in
accordance with formula (E.1) of Appendix E, then calculate the transverse
tensile characteristic value in accordance with formu...