CN102507635A - Method for measuring heating shrinkage rate of ceramic fiber product - Google Patents
Method for measuring heating shrinkage rate of ceramic fiber product Download PDFInfo
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- CN102507635A CN102507635A CN2011103115200A CN201110311520A CN102507635A CN 102507635 A CN102507635 A CN 102507635A CN 2011103115200 A CN2011103115200 A CN 2011103115200A CN 201110311520 A CN201110311520 A CN 201110311520A CN 102507635 A CN102507635 A CN 102507635A
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Abstract
The invention discloses a method for measuring the heating shrinkage rate of a ceramic fiber product, which comprises the following steps of labeling a marker or a marking point on samples by a self-made jig; placing a scale beside the marker or the marking point of the samples; using a digital camera to take photos of the scale and the marker or the marking point on the samples; and copying all the photos to a computer, then using a measuring tool in CAD(Computer Aided Design) drawing software to measure the readings of the scale and the measured marker (or marking point); calculating the practical length of the measured marker (or marking point) according to the proportional relationship and then measuring the length of the marking point before heating and after heating according to the rules of GB/T 17911-2006 so as to calculate the shrinkage rate. The invention solves the problem of high construction cost with prior art measuring equipment, greatly reduces the measuring error, improves the measuring precision and simplifies the measuring steps.
Description
Technical field
The present invention relates to the heat shrink rate detection technique field of product, especially relate to a kind of assay method of ceramic fibre heat shrink rate.
Background technology
Ceramic fiber is as third generation fire resistive material continue traditional heavy refractory brick and unshape refractory after, the good heat-insulating property that it not only has general low thermal conductivity material and is had, and have the excellent heat resistance ability of continuous firing under the high temperature; Because the crystallization and the grain growth of vitreous ceramic fiber; The crystal transfer of polycrystalline crystal fibre and grain growth; Corrosive substance promoted the sintering of fiber crystallization, glomerocryst and fiber contact position during objectionable impurities and fiber used in the fiber; Factors such as high-temerature creep, cause the variation of fibre structure---drawdown deformation, fiber mistake bullet, embrittlement fracture, fibre strength reduces, densification, until sintering forfeiture filamentary structure takes place.Therefore, the heat shrink rate of ceramic fibre is the stable on heating important reflection of ceramic fibre.
In the conventional art, in GB/T 17911-2006, use high-resolution optical microscope, scale division value 0.01mm, or use vernier caliper, vernier scale division value 0.05mm measures the length value of the mark (or monumented point) on the sample.Because, the optical microscope of high score variability, cost is high, and seldom enterprise or little testing agency are equipped with; And with the length value of the mark on the vernier caliper measurement sample (or monumented point); Then be easy to run into mark (or monumented point), cause the whole test process failure, because in whole test process; Can not touch mark (or monumented point), whole process belongs to non-contact measurement; And at slide calliper rule not under the situation of contact mark thing (or monumented point), it is bigger that measured value is influenced by human factor, has error possibility bigger than normal.
Summary of the invention
The present invention is directed to high difficult outfit of equipment manufacturing cost; And the big prior art defective of device measuring error at a low price provides the assay method of the ceramic fibre heat shrink rate that a kind of equipment needed thereby is simple, measuring error is little, simple to operate.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the present invention needs newly-increased simple device to have: digital camera except that the equipment of GB/T17911-2006 regulation; Homemade 100 * 100 tools; Open four holes on the tool, diameter is 0.5mm, and the center of circle in four holes becomes foursquare four summits; Hole center distance 75mm is apart from limit 12.5mm; Homemade little stainless steel reference chi, the about 120mm of length, the scale mark thickness is less than 0.2mm, and line-to-line is apart from 75mm; CAD software; In addition, the present invention does not need high-resolution optical microscope, is actually with newly added equipment and has substituted it.
A kind of assay method of ceramic fibre heat shrink rate is characterized in that, carries out according to the following steps:
1) the ceramic fibre sample of be ready to digital camera, homemade 100 * 100 instruments, homemade 75mm reference chi, CAD software, preparing by the requirement of GB/T 17911-2006;
2) tool of getting ready is placed on the sample, four limits alignment, marks or the position through four holes on the tool are inserted in four holes from the tool, do monumented point;
3) remove tool, the reference chi is placed on the sample, make the reference chi parallel with the line of two marks or two monumented points, the scale mark of reference chi is good more the closer to monumented point;
4) with digital camera the reference chi on the sample and two marks or monumented point are taken picture; Move the reference chi, use the same method, again with picture under reference chi and other per two marks or the monumented point shooting;
5) the whole picture reproductions under will taking are opened CAD to computer, picture are inserted among the CAD with the raster image reference pattern respectively again, and the scaling factor is appointed as 100 during insertion; In CAD; Add the query facility button, perhaps open the inquiry-measurement length instrument in the toolbar, measure the range reading between per two monumented points with mouse; And then measure the range reading between two scale marks on the reference chi; Notice during measurement that the zoom function that is used among the CAD amplifies the measured point, improve measuring accuracy
6) repeat above 2)-5), use the same method and measure after the heat shrink on the sample range reading between two monumented points, and measure the distance between two scale marks on the reference chi;
7) calculate the physical length of tested mark (or monumented point) under a proportional relationship, calculating formula is: the reading B of tested monumented point physical length L=(the physical length C of the reading A * reference chi of monumented point) ÷ reference chi;
8) according to GB/T 17911-2006 regulation, through measuring the length of heat front and back monumented point, calculate shrinkage factor,
It is shrinkage factor=(monumented point physical length L1 before (monumented point physical length L1-heating back monumented point physical length L2 before the heating) ÷ heating) * 100%.
According to step 7) and 8) in two formulas put in order, shrinkage factor=(A1/B1-A2/B2) * B1/Al * 100%, formula is thus measured the reading of monumented point before and after the heating, can calculate shrinkage factor.
Have four holes on described homemade 100 * 100 tools, the diameter 0.5mm in hole, the center of circle in four holes becomes foursquare four summits, and pitch of holes is 75mm, apart from limit 12.5mm;
Described self-control reference chi is little stainless rule, the about 120mm of length, and the scale mark thickness is less than 0.2mm, and line-to-line is apart from 75mm;
When utilizing the self-control tool to insert mark, can insert the metal flag thing through 4 apertures on the self-control tool, like the platinum filament mark; When utilizing the self-control tool to do monumented point,, do the monumented point of diameter respectively less than 0.5mm with high temperature resistant colorant through 4 apertures on the self-control tool.
When measuring, with reference chi being put on the sample gently, and make on the reference chi two scale marks respectively with mark or monumented point apart within the 2-3mm.With the survey instrument in the CAD software time, be used amplification, locomotive function, can improve measuring accuracy and measuring speed greatly.
The invention solves the high problem of measuring equipment cost, and belong to non-contact measurement, the zoom function that is used during measurement among the CAD amplifies the measured point, reduces measuring error greatly, has improved measuring accuracy; Surveying work is oversimplified, after getting ready, as long as just can accomplish linear measure longimetry work with mouse on computers, and then the calculating of completion shrinkage factor.
Description of drawings
Fig. 1 is monumented point and reference chi instrumentation plan.
Fig. 2 is 100 * 100 tool synoptic diagram.
Fig. 3 is the reference chi synoptic diagram of 75mm.
1, mark (monumented point), 2, the monumented point distance numbers, 3, the reference chi, 4, reference chi scale, 5, sample number into spectrum, 6, tool, 7, the hole on the tool.
Embodiment
Embodiment 1
Need before the test for the first time to prepare: digital camera; With homemade 100 * 100 tools of transparent plastic sheet, open four holes on the tool, center, hole quadrate, pitch of holes 75mm, apart from limit 12.5mm, the diameter in hole is 0.5mm; With the reference chi of little stainless rule self-control 75mm, the about 120mm of length, the scale mark thickness is less than 0.2mm, and the line-to-line distance is 75mm; CAD software.
Be ready to the sample of ceramic fibre by the requirement of GB/T 17911-2006; Accurate good tool is placed on the sample; The alignment of four limits; Insert the platinum filament mark from the hole of four diameter 0.5mm respectively or use high temperature resistant colorant, do the monumented point of diameter respectively less than 0.5mm in four Confucius' position.Remove tool,, make the reference chi parallel with the line of two marks or two monumented points with reference chi being put on the sample gently, and make on the reference chi two scale marks respectively with mark or monumented point apart from the 2-3mm.
With the microshot shelves of digital camera, and with the resolution shelves of turning up full blast, the reference chi on the sample and two marks or two monumented points are taken picture; Move the reference chi, with the same method of putting, again with picture under reference chi and other per two marks or the monumented point shooting.
Use the same method the picture of reference chi and per two marks or monumented point under other the sample shooting.
Whole picture reproductions under taking to computer, are opened CAD, picture is inserted among the CAD with the raster image reference pattern respectively again, the scaling factor is appointed as 100 during insertion; In CAD; Add the query facility button, the length instrument is measured in the inquiry one of perhaps opening in the toolbar, measures the range reading between per two monumented points with mouse; Speed up and measure the range reading between two scale marks on the reference chi; Notice during measurement that the zoom function that is used among the CAD amplifies the measured point, improve measuring accuracy, the reading that measures is inserted in the following electrical form; And insert in the table with the sample data that the same method of putting is measured after with heat shrink.
Other steps are still undertaken by the requirement of GB/T 17911-2006.
Measurement result data such as following table:
Table 1 1260 ceramic beaverboards, the test data of 1200 ℃ of * 24hrs
Embodiment 2
Method of testing and detailed process are with embodiment 1, and institute's specimen is 1600 ceramic beaverboards, test result such as following table:
Table 2 1600 ceramic beaverboards, the test data of 1500 ℃ of * 24hrs
Claims (5)
1. the assay method of a ceramic fibre heat shrink rate is characterized in that, may further comprise the steps:
1) the ceramic fibre sample of be ready to digital camera, homemade 100 * 100 instruments, homemade reference chi, CAD software, preparing by the requirement of GB/T 17911-2006;
2) tool of getting ready is placed on the sample, four limits alignment, marks or the position through four holes on the tool are inserted in four holes from the tool, do monumented point;
3) remove tool, the reference chi is placed on the sample, make the reference chi parallel with the line of two marks or two monumented points, the scale mark of reference chi is good more the closer to monumented point;
4) with digital camera the reference chi on the sample and two marks or monumented point are taken picture; Move the reference chi, use the same method, again with picture under reference chi and other per two marks or the monumented point shooting;
5) the whole picture reproductions under will taking are opened CAD to computer, picture are inserted among the CAD with the raster image reference pattern respectively again, and the scaling factor is appointed as 100 during insertion; In CAD; Add the query facility button, perhaps open the inquiry-measurement length instrument in the toolbar, measure the range reading between per two monumented points with mouse; And then measure the range reading between two scale marks on the reference chi; Notice during measurement that the zoom function that is used among the CAD amplifies the measured point, improve measuring accuracy
6) repeat above 2)-5), use the same method and measure after the heat shrink on the sample range reading between two monumented points, and measure the distance between two scale marks on the reference chi;
7) calculate the physical length of tested mark (or monumented point) under a proportional relationship, calculating formula is: the reading B of tested monumented point physical length L=(the physical length C of the reading A * reference chi of monumented point) ÷ reference chi;
8) according to GB/T 17911-2006 regulation, through measuring the length of heat front and back monumented point, calculate shrinkage factor,
Be shrinkage factor=(monumented point physical length L1 before (monumented point physical length L1-heating back monumented point physical length L2 before the heating) ÷ heating) X100%
Measure the reading of heating front and back monumented point,, calculate the heat shrink rate of ceramic fibre again according to the computing formula of shrinkage factor.
2. the assay method of ceramic fibre heat shrink rate according to claim 1; It is characterized in that: open four holes on homemade 100 * 100 tools, the diameter in hole is 0.5mm, and the center of circle in four holes becomes foursquare four summits; Pitch of holes is 75mm, apart from limit 12.5mm.
3. the assay method of ceramic fibre heat shrink rate according to claim 1 is characterized in that: self-control reference chi is little stainless rule, the about 120mm of length, and the scale mark thickness is less than 0.2mm, and line-to-line is apart from 75mm.
4. the assay method of ceramic fibre heat shrink rate according to claim 1 is characterized in that: when doing mark, on sample, insert the metal flag thing through the aperture on the tool; When doing monumented point, do the monumented point of diameter through the aperture on the tool less than 0.5mm with high temperature resistant colorant.
5. the assay method of ceramic fibre heat shrink rate according to claim 1 is characterized in that: when measuring, with reference chi being put on the sample gently, and make on the reference chi two scale marks respectively with mark or monumented point apart within the 2-3mm.
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| CN 201110311520 CN102507635B (en) | 2011-10-14 | 2011-10-14 | Method for measuring heating shrinkage rate of ceramic fiber product |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928339A (en) * | 2012-10-16 | 2013-02-13 | 大连理工大学 | Method for visually testing internal molding shrinkage characteristic of high polymer material |
| CN103454302A (en) * | 2013-09-18 | 2013-12-18 | 四川旭虹光电科技有限公司 | Method for measuring shrinkage factor of PDP (Plasma Display Panel) glass |
| CN104089974A (en) * | 2014-07-29 | 2014-10-08 | 盐城纺织职业技术学院 | Synthetic fiber heat shrinkage rate detection method and synthetic fiber heat shrinkage rate detection device |
| CN104237298A (en) * | 2014-09-23 | 2014-12-24 | 海南中航特玻材料有限公司 | Method for testing shrinkage rate of electronic flat glass |
| WO2015132057A1 (en) * | 2014-03-05 | 2015-09-11 | Krones Aktiengesellschaft | Method and device for ascertaining shrinkage characteristics of a flat material strip made of a thermoplastic material |
| CN105572330A (en) * | 2015-12-08 | 2016-05-11 | 南京航空航天大学 | Smart monitoring device and method of shrinkage coefficient and temperature shrinkage coefficient of cement stabilized macadam |
| CN108195871A (en) * | 2017-12-25 | 2018-06-22 | 浙江石金玄武岩纤维股份有限公司 | Inorganic non-metallic fiber filament heat resistance test method |
| CN109030328A (en) * | 2018-07-20 | 2018-12-18 | 四川省劲腾环保建材有限公司 | A kind of detection method of wallboard drying shrinkage |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928339A (en) * | 2012-10-16 | 2013-02-13 | 大连理工大学 | Method for visually testing internal molding shrinkage characteristic of high polymer material |
| CN103454302A (en) * | 2013-09-18 | 2013-12-18 | 四川旭虹光电科技有限公司 | Method for measuring shrinkage factor of PDP (Plasma Display Panel) glass |
| WO2015132057A1 (en) * | 2014-03-05 | 2015-09-11 | Krones Aktiengesellschaft | Method and device for ascertaining shrinkage characteristics of a flat material strip made of a thermoplastic material |
| CN104089974A (en) * | 2014-07-29 | 2014-10-08 | 盐城纺织职业技术学院 | Synthetic fiber heat shrinkage rate detection method and synthetic fiber heat shrinkage rate detection device |
| CN104237298A (en) * | 2014-09-23 | 2014-12-24 | 海南中航特玻材料有限公司 | Method for testing shrinkage rate of electronic flat glass |
| CN105572330A (en) * | 2015-12-08 | 2016-05-11 | 南京航空航天大学 | Smart monitoring device and method of shrinkage coefficient and temperature shrinkage coefficient of cement stabilized macadam |
| CN108195871A (en) * | 2017-12-25 | 2018-06-22 | 浙江石金玄武岩纤维股份有限公司 | Inorganic non-metallic fiber filament heat resistance test method |
| CN108195871B (en) * | 2017-12-25 | 2020-04-14 | 浙江石金玄武岩纤维股份有限公司 | Method for testing heat resistance of inorganic nonmetallic fiber filament |
| CN109030328A (en) * | 2018-07-20 | 2018-12-18 | 四川省劲腾环保建材有限公司 | A kind of detection method of wallboard drying shrinkage |
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Owner name: SHANGHAI YESO INSULATING PRODUCTS CORPORATION Free format text: FORMER NAME: SHANGHAI YESO HEAT ENERGY TECHNOLOGY CO., LTD. |
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Address after: Huaxin Town Huayi village in Qingpu District of Shanghai city in 201708 Patentee after: YESO INSULATING PRODUCTS CO.,LTD. Address before: Huaxin Town Huayi village in Qingpu District of Shanghai city in 201708 Patentee before: Yeso Insulating Products Co.,Ltd. |
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Effective date of registration: 20230816 Address after: Group 35, Yaozhuang Village, Xiayuan Town, Rugao City, Nantong City, Jiangsu Province, 226500 (in the house owned by Wang Mingquan) Patentee after: Nantong Esso thermal materials Co.,Ltd. Address before: Huaxin Town Huayi village in Qingpu District of Shanghai city in 201708 Patentee before: YESO INSULATING PRODUCTS CO.,LTD. |