CN105548457A - Testing method for fireproof performance of firewall sealant - Google Patents
Testing method for fireproof performance of firewall sealant Download PDFInfo
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- CN105548457A CN105548457A CN201510916714.1A CN201510916714A CN105548457A CN 105548457 A CN105548457 A CN 105548457A CN 201510916714 A CN201510916714 A CN 201510916714A CN 105548457 A CN105548457 A CN 105548457A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a testing method for the fireproof performance of a firewall sealant, belonging to the technical field of testing of material performance. The method comprises the following steps: igniting a combustor and allowing the flame temperature of the combustor to be maintained at 1050 to 1150 DEG C; then placing the combustor at one side, where the firewall sealant is located, of a test piece and allowing the scope of the flames of the combustor to cover 70 to 90% of the area of the flame-facing surface of the test piece; firing the test piece with the flames for 14 to 15 min; measuring the temperatures of the flame-facing surface and a back surface not facing flames of the central area of the test piece respectively, and drafting a temperature variation curves; and evaluating the fireproof performance of the firewall sealant according to testing phenomena or the variation curve of the temperature of the back surface not facing flames. The method can effectively evaluate the fireproof performance of the firewall sealant by testing a firewall preventing large-area flames and has the advantages of strong targeting performance, a high simulation degree and reliable evaluation results.
Description
Technical field
The invention belongs to material properties test technical field, be specifically related to a kind of method of testing of fire wall sealant fire protecting performance.
Background technology
Fire wall sealant is the important ingredient of aircraft fire protection wall, mainly plays fire prevention, heat insulation effect, can ensure the normal performance of firewall functionality.
In prior art, method of testing for material fire protecting performance mainly adopts vertical combustion, horizontal firing, 45 ° of burnings, or applicable alcohol blast burner calcination etc., these methods adopt small sample to test on standing test platform, but inapplicable to the test of the fire wall for large area flame shield, effectively cannot evaluate the fire protecting performance of fire wall sealant.
Summary of the invention
In order to solve the problem, the invention provides a kind of method of testing of fire wall sealant fire protecting performance, for testing the fire wall of large area flame shield, thus the fire protecting performance of evaluation fire wall sealant, pointed strong, emulation depth is high, the reliable advantage of evaluation result, is a kind of practicable Validity Test method.
The method of testing of fire wall sealant fire protecting performance of the present invention, mainly comprises the following steps:
S1, making testpieces, perforate on described testpieces, and be made up of multiple test plate (panel);
S2, on described testpieces, smear fire wall sealant;
S3, after the sulfuration of described fire wall sealant completes, testpieces is arranged on the test-bed with vibrating device;
S4, ignition combustion device, make the flame temperature of described burner remain between 1050 ~ 1150 DEG C;
S5, burner is placed in the side with fire wall sealant of described testpieces, and enables the flame scope of described burner cover 70% ~ 90% of described testpieces side towards the fire area;
S6, carry out flame calcination to described testpieces, the duration is 14 ~ 15 minutes;
S7, described testpieces is being carried out in the process of flame calcination, measuring the side towards the fire temperature of described testpieces central area and the unexposed surface temperature of testpieces central area, and draw temperature variation curve;
S8, described testpieces is being carried out in the process of flame calcination, when the side towards the fire temperature of described testpieces central area is not within the scope of 1050 ~ 1150 DEG C, recalibrating described burner, and perform step S4 ~ S7;
S9, evaluate the fire protecting performance of fire wall sealant according to the change curve of experimental phenomena or unexposed surface temperature.
Preferably, described testpieces is interconnected by three pieces of test plate (panel)s, perforate on the test plate (panel) being positioned at centre position.
In such scheme preferably, described testpieces is made up of titanium alloy.
In such scheme preferably, the amplitude of described vibrating device is 0.3 ~ 0.5mm, and frequency is 40 ~ 60Hz.
In such scheme preferably, the side towards the fire and the fiery face of the back of the body of described testpieces are provided with thermopair.
, in described step S9, whether described experimental phenomena comprises flame and to penetrate or whether fire wall sealant comes off in such scheme preferably.
In such scheme preferably, the test process of described step S4 ~ step S8 carries out at 25 ± 5 DEG C of temperature and 50% ± 10%RH humidity.
The present invention is outside horizontal firing method, vertical combustion and 45 ° of combustion methods, provide a kind of fire wall sealant fire protecting performance method of testing, the method is the important breakthrough to China's traditional material fire protecting performance method of testing, perfect China's material fire protecting performance appraisement system, when testing the fire wall of large area flame shield, the fire protecting performance of effective evaluation fire wall sealant, pointed strong, emulation depth is high, the reliable advantage of evaluation result.Be specially adapted to the fire protecting performance evaluation of aircraft fire protection wall and similar structures, also can promote the weaponry for other, evaluation of large area fire protecting performance being had to demand.
Accompanying drawing explanation
Fig. 1 is the flammability test scheme of installation of a preferred embodiment of the method for testing of fire wall sealant fire protecting performance of the present invention.
Embodiment
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
The invention provides a kind of method of testing of fire wall sealant fire protecting performance, for testing the fire wall of large area flame shield, thus the fire protecting performance of evaluation fire wall sealant, pointed strong, emulation depth is high, the reliable advantage of evaluation result, is a kind of practicable Validity Test method.
The method of testing of fire wall sealant fire protecting performance of the present invention, mainly comprises the following steps:
S1, making testpieces, perforate on described testpieces, and be made up of multiple test plate (panel);
S2, on described testpieces, smear fire wall sealant;
S3, after the sulfuration of described fire wall sealant completes, testpieces is arranged on the test-bed with vibrating device;
S4, ignition combustion device, make the flame temperature of described burner remain between 1050 ~ 1150 DEG C;
S5, burner is placed in the side with fire wall sealant of described testpieces, and enables the flame scope of described burner cover 70% ~ 90% of described testpieces side towards the fire area;
S6, carry out flame calcination to described testpieces, the duration is 14 ~ 15 minutes;
S7, described testpieces is being carried out in the process of flame calcination, measuring the side towards the fire temperature of described testpieces central area and the unexposed surface temperature of testpieces central area, and draw temperature variation curve;
S8, described testpieces is being carried out in the process of flame calcination, when the side towards the fire temperature of described testpieces central area is not within the scope of 1050 ~ 1150 DEG C, recalibrating described burner, and perform step S4 ~ S7;
S9, evaluate the fire protecting performance of fire wall sealant according to the change curve of experimental phenomena or unexposed surface temperature.
In the present embodiment, described testpieces is interconnected by three pieces of test plate (panel)s, perforate on the test plate (panel) being positioned at centre position.Testpieces adopts three pieces of titanium alloy test plate (panel)s after screw assembling, makes in surperficial large area coating resistant sealant.The coating thickness of the processing technology of titanium alloy, surface treatment mode and sealant, should be consistent with the actual fire wall that use on aircraft, the head of screw by fiery face should be coated with resistant sealant and carry out package.Such as middle titanium alloy sheets is of a size of 200mm*1000mm, thickness is 1.5mm, the titanium alloy sheet shape on both sides is identical, board size is 437.5mm*1000mm, thickness 2.5mm, three blocks of plates are synthesized the square plate of one piece of 1000mm*1000mm, middle titanium alloy sheets can be formed overlapping with the titanium alloy sheet on both sides, thus form a concave surface, this concave surface is side towards the fire, and this concave surface is provided with the hole of multiple different size, such as diameter 88mm, 47mm, 6.5mm etc., in an alternate embodiment, also comprise the crack of a 50mm*1.5mm.
In the present embodiment, instrument is calibrated, as shown in Figure 1, mainly comprises the following steps:
Be placed in by thermopair on the extended line of burner flame injection direction, the distance of point for measuring temperature and burner nozzle is approximately 102mm, and is connected on suitable pen recorder;
Ignition combustion device, preheating 5min, then moves to calibrating position;
Start by thermopair monitoring temperature after two minutes.Adjustment burner makes flame temperature control within the scope of 1010 ± 50 DEG C;
Move out calibrating position, remove thermocouple rake.Burner may need optionally to cut out to be opened to change testpieces and correcting device.If burner cuts out, before continuation test or calibration, need preheating 5min again;
Burner is moved to calibrating position after preheating 5min.
The present embodiment, except particular case, the test process of described step S4 ~ step S8 carries out at 25 ± 5 DEG C of temperature and 50% ± 10%RH humidity.
After completing instrument calibration, be arranged on by testpieces on the test-bed with vibrating device, regulate amplitude and the vibration frequency of shaking table, make its amplitude be 0.3 ~ 0.5mm, frequency is 40 ~ 60Hz.Amplitude and vibration frequency can be arranged according to the actual requirements voluntarily.
In the present embodiment, ignition combustion device, test position is moved to after preheating 5min, when burner and testpieces in place after open the thermometric region of timer testpieces should at burner flame overcentre, in test process, the temperature variation curve of each point for measuring temperature of testpieces side towards the fire and the fiery face of the back of the body should be drawn, if desired, carry out whole process video recording, after test 15min, close burner to stop test.Simultaneously, the situation on record test sample two sides, if the average flame temperature in test process reduces by more than 65 DEG C, then need to readjust burner repeated test, if medial temperature increases above 65 DEG C, test report records temperature reading, finally records experimental phenomena, temperature variation curve arranging, the damage of visual examination and record testpieces, deformation extent photo after taking testpieces burning.
Be understandable that, the side towards the fire and the fiery face of the back of the body of described testpieces are provided with thermopair.In described step S9, whether described experimental phenomena comprises flame and to penetrate or whether fire wall sealant comes off.
The present invention is outside horizontal firing method, vertical combustion and 45 ° of combustion methods, provide a kind of fire wall sealant fire protecting performance method of testing, the method is the important breakthrough to China's traditional material fire protecting performance method of testing, perfect China's material fire protecting performance appraisement system, when testing the fire wall of large area flame shield, the fire protecting performance of effective evaluation fire wall sealant, pointed strong, emulation depth is high, the reliable advantage of evaluation result.Be specially adapted to the fire protecting performance evaluation of aircraft fire protection wall and similar structures, also can promote the weaponry for other, evaluation of large area fire protecting performance being had to demand.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a method of testing for fire wall sealant fire protecting performance, is characterized in that, comprising:
S1, making testpieces, perforate on described testpieces, and be made up of multiple test plate (panel);
S2, on described testpieces, smear fire wall sealant;
S3, after the sulfuration of described fire wall sealant completes, testpieces is arranged on the test-bed with vibrating device;
S4, ignition combustion device, make the flame temperature of described burner remain between 1050 ~ 1150 DEG C;
S5, burner is placed in the side with fire wall sealant of described testpieces, and enables the flame scope of described burner cover 70% ~ 90% of described testpieces side towards the fire area;
S6, carry out flame calcination to described testpieces, the duration is 14 ~ 15 minutes;
S7, described testpieces is being carried out in the process of flame calcination, measuring the side towards the fire temperature of described testpieces central area and the unexposed surface temperature of testpieces central area, and draw temperature variation curve;
S8, described testpieces is being carried out in the process of flame calcination, when the side towards the fire temperature of described testpieces central area is not within the scope of 1050 ~ 1150 DEG C, recalibrating described burner, and perform step S4 ~ S7;
S9, evaluate the fire protecting performance of fire wall sealant according to the change curve of experimental phenomena or unexposed surface temperature.
2. the method for testing of fire wall sealant fire protecting performance as claimed in claim 1, is characterized in that: described testpieces is interconnected by three pieces of test plate (panel)s, perforate on the test plate (panel) being positioned at centre position.
3. the method for testing of fire wall sealant fire protecting performance as claimed in claim 2, is characterized in that: described testpieces is made up of titanium alloy.
4. the method for testing of fire wall sealant fire protecting performance as claimed in claim 1, is characterized in that: the amplitude of described vibrating device is 0.3 ~ 0.5mm, and frequency is 40 ~ 60Hz.
5. the method for testing of fire wall sealant fire protecting performance as claimed in claim 1, is characterized in that: on the side towards the fire and the fiery face of the back of the body of described testpieces, be provided with thermopair.
6. the method for testing of fire wall sealant fire protecting performance as claimed in claim 1, is characterized in that: in described step S9, and whether described experimental phenomena comprises flame and to penetrate or whether fire wall sealant comes off.
7. the method for testing of fire wall sealant fire protecting performance as claimed in claim 1, is characterized in that: the test process of described step S4 ~ step S8 carries out at 25 ± 5 DEG C of temperature and 50% ± 10%RH humidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916714.1A CN105548457A (en) | 2015-12-10 | 2015-12-10 | Testing method for fireproof performance of firewall sealant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916714.1A CN105548457A (en) | 2015-12-10 | 2015-12-10 | Testing method for fireproof performance of firewall sealant |
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| CN105548457A true CN105548457A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510916714.1A Pending CN105548457A (en) | 2015-12-10 | 2015-12-10 | Testing method for fireproof performance of firewall sealant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580869A (en) * | 2018-12-25 | 2019-04-05 | 中国航空综合技术研究所 | The fire protecting performance test method and its test device of civil aircraft component and its attachment |
| CN109613058A (en) * | 2018-12-27 | 2019-04-12 | 上海海事大学 | A kind of Thermal feedback heattransfer effect test device of steel attachment combustible material burning |
| CN112881586A (en) * | 2021-01-20 | 2021-06-01 | 国网江苏省电力有限公司电力科学研究院 | Performance evaluation detection method and system for cable flame-retardant wrapping tape after operation |
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| CN1975371A (en) * | 2006-12-21 | 2007-06-06 | 中国航空工业第一集团公司北京航空材料研究院 | Electric furnace for expansive fireproof coating field detection and detecting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580869A (en) * | 2018-12-25 | 2019-04-05 | 中国航空综合技术研究所 | The fire protecting performance test method and its test device of civil aircraft component and its attachment |
| CN109613058A (en) * | 2018-12-27 | 2019-04-12 | 上海海事大学 | A kind of Thermal feedback heattransfer effect test device of steel attachment combustible material burning |
| CN109613058B (en) * | 2018-12-27 | 2021-07-13 | 上海海事大学 | Steel adheres to hot feedback heat transfer effect testing arrangement of combustible material burning |
| CN112881586A (en) * | 2021-01-20 | 2021-06-01 | 国网江苏省电力有限公司电力科学研究院 | Performance evaluation detection method and system for cable flame-retardant wrapping tape after operation |
| CN112881586B (en) * | 2021-01-20 | 2023-04-14 | 国网江苏省电力有限公司电力科学研究院 | Method for determining failure criterion of flame-retardant wrapping tape of cable and evaluating performance of cable after operation |
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Application publication date: 20160504 |