C14.8

Category: C type bar

Heat-insulated bridging aluminum alloy doors and windows are made by the combination of heat-insulated aluminum alloy profiles and related supporting materials, while heat-insulated aluminum alloy profiles are composite profiles with heat-insulating function made by connecting aluminum alloy profiles with heat-insulating materials.

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Technical Parameters Table

Categories	Projects	Unit	Standard requirement	Measured value
Basic performance (2a℃2℃ Room temperature. 50℃±5℃ Relative Humidity)	Tensile strength (transverse)	Mpa	≥90	102
	Stress cracking test		No cracks shall appear after the test	No cracks
	Tensile strength (longitudinal)	Mpa	≥90	90
	Elongation at break	%	≥3	5.5
	Modulus of elasticity (spacing 25mm)	Mpa	≥4500	5134
	Load deflection temperature(0.45MPa)	℃	>240	250
	Vicat softening temperature	℃	≥230	253
	Intensity	g/cm3	1.30±0.05	1.3
	Shore hardness D		80±5	855
	Linear expansion coefficient	K-1	(2.0-3.2)x10	2.9x10
	Impact strength (without notch)	KJ/m2	≥50	51
High temperature performance〔9±2)℃	Tensile strength (transverse)	MPa	≥45	60
Low temperature performance〔-30±2〕℃	Tensile strength (transverse)	Mpa	≥80	96
Water resistance	Tensile strength (transverse)	Mpa	≥75	96
Aging resistance	Tensile strength (transverse)	MPa	≥50	70

Test items Standards/tools
Calorific value calculation“u”	ENISO 10077-2-BISCO Software
Calorific value test“u”	EN12412-2,EN12567-1- Hotbox
Lateral tensile test“o”	GB5237.6-2004
Shear force test "T" and elastic constants“℃”	GB5237.6-2004
Test aging test method1.“h”	EN14024.GB52376-2004-1000 Hourly test
Inertial distance calculation“ef”	EN14024
Inspection and analysis of the internal structure of the insulation strip	Microscope
Plastic tensile strength test
Dimensional accuracy inspection	ENISO 527

Application Scenarios

Product usage instructions

In China's building energy-saving standards continue to improve today, the doors and windows industry, as an important part of the energy-saving city, is also actively seeking transformation and upgrading. System windows and doors is a perfect organic combination of performance system, and the thermal insulation performance of system windows and doors is one of the main indicators of the performance of windows and doors, and also an important technical parameter reflecting the overall level of system windows and doors. Therefore, it is not a supporting role in the production of doors and windows, but an important role in the energy-saving indexes, and it is especially important for the selection of heat insulation strips in system doors and windows. Instructions for use: The insulation strip made of polyamide is dry when it is first produced, but then it gradually absorbs water from the surrounding environment. The rate of water absorption and the amount of water absorbed depend on the following factors: ambient humidity, ambient temperature, storage time.

In summer, when the temperature and relative temperature of the warehouse is higher, the insulation strips absorb more water than in other seasons, even in short term storage. Excessive moisture content (more than 2%) can lead to softening of the strips and thus affect the productivity of the threading process or create blisters in the painting process. Therefore, we recommend to store the insulation strips in a room with a temperature of 15-20°. Single bundles of insulation strips may be twisted and distorted when they are moved off the shelves, which will cause permanent twisting and distortion if they are not straightened in time. Therefore, we recommend using insulation strips with minimal bending when storing them. To prevent twisting and drinking of bending deformation, make sure that the insulation strips are supported on the protruding part and that the storage time for pre-finishing is as short as possible.

If you have any specific questions, please contact us and we will be happy to provide you with technical support.

Keywords:

C14.8