CN106092696A - Heterotypic fire brick refractoriness under load and pressure creep test method - Google Patents
Heterotypic fire brick refractoriness under load and pressure creep test method Download PDFInfo
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- CN106092696A CN106092696A CN201610645023.7A CN201610645023A CN106092696A CN 106092696 A CN106092696 A CN 106092696A CN 201610645023 A CN201610645023 A CN 201610645023A CN 106092696 A CN106092696 A CN 106092696A
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- sample
- brick
- under load
- refractoriness under
- load
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- 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
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
Abstract
The present invention provides a kind of heterotypic fire brick refractoriness under load and pressure creep test method, comprises the steps: (1) brick size according to quarl, produces close with given size in GB or smelting mark, and the sample that shape is similar；(2) " seal method " is used to calculate sample actual loading area；(3) to sample imposed load, this load is adjusted by the proportionate relationship of sample standard lifting surface area with sample actual loading area, makes the compressive stress acting on sample reach standard gauge provisioning request；(4) refractoriness under load or pressure creep test, and log are carried out according to normal procedure step.The present invention can be according to special-shaped brick shape size, adjust sample preparation size and experiment parameter, the creep rate and the loading softening that detect checker brick accurately start two important rs of temperature so that test result can react the actually used performance of checker brick truly, accurately.
Description
Technical field
The present invention relates to the experimental technique of a kind of refractory material, particularly to a kind of loading softening for heterotypic fire brick
Temperature and the test method of pressure croop property detection.
Background technology
Refractory material is widely used in the industries such as metallurgy, glass, cement, chemical industry, oil, is to ensure that what hot industry produced
Stock.When refractory material being carried out performance detection, often in the face of refractory material as special-shaped in air brick, checker brick etc., and mesh
Before for the method for inspection of special form brick, relevant national standard regulation is less, be substantially with reference to standard brick and the test method of general brick or
Person interested party consults to determine.
For refractoriness under load and pressure creep test, these two is to weigh refractory material to make under the big load condition of high temperature
By the important indicator of performance, the most only experimental technique of standard brick.Special form brick is difficult to produce standard-sized sample, experiment
Data difference is bigger, it is impossible to react the real conditions of its quality, performance, and assay, without reference to value, loses guidance meaning
Justice.
Existing national standard " GB/T 7321-2004 shaping refractory product preparation method of sample " defines part different
The sample preparation position of shaped brick, but to specimen size no standard.National standard " GB/T 5073-2005 refractory material pressure creep test
Method ", " GB/T 5989-2008 refractory material refractoriness under load test method differential temperature-raising method ", metallurgical standard " YB/T
370-1995 refractory product refractoriness under load test method non-differential temperature-raising method " all define the standard size of sample, but right
The special form brick that can not produce standard specimen does not illustrate.Cause opposite sex brick cannot test according to standard method, testing result
There is no comparability.
Summary of the invention
It is an object of the invention to overcome refractoriness under load and the pressure creep examination that cannot measure special form brick in prior art
Test the defect of performance, it is provided that a kind of heterotypic fire brick refractoriness under load and pressure creep test method.
The present invention is achieved in that
A kind of heterotypic fire brick refractoriness under load and pressure creep test method, comprise the steps:
(1) according to the brick size of quarl, produce close with given size in GB or smelting mark, and the examination that shape is similar
Sample, and retain the original surface of brick as far as possible, two bottom surfaces are parallel and surfacing；
GB said herein, refers to national standard " GB/T 5073-2005 refractory material pressure creep test method ", " GB/T
5989-2008 refractory material refractoriness under load test method differential temperature-raising method ", smelting mark refers to metallurgical standard " YB/T 370-
1995 refractory product refractoriness under load test method non-differential temperature-raising methods "；
As a example by 19 hole checker brick, refractoriness under load test standard specimen, metallurgical standard be defined as diameter 36 ± 0.5mm,
The cylinder of high 50 ± 0.5mm, national standard is diameter 50 ± 0.5mm, high 50 ± 0.5mm, central through hole diameter 12～13mm
Cylinder；According to checker brick actual size, sample preparation is diameter 50mm, there is the cylinder of through hole at high 50mm, center；Pressure creep rate
The standard specimen of test, national standard is diameter 50 ± 0.5mm, high 50 ± 0.5mm, the cylinder of central through hole diameter 12～13mm
Body；Actual sample preparation is diameter 50mm, there is the cylinder of through hole at high 50mm, center；
(2) " seal method " is used to calculate sample actual loading face area: sample stress bottom surface to be dipped in upper ink paste, is printed on A4 paper,
By in scanner input computer, by graphics software, scanning patter is carried out gridding process, calculate that sample is actual to be subject to
Power face area；Or
" drainage " is used to calculate sample actual loading face area: " GB/T 2997-2000 densification setting is resistance to reference to national standard
Fire preparing product bulk density, apparent porosity and true porosity test method ", utilize the close tester of pore body to record the volume of sample,
Its volume, divided by height, obtains sample actual loading area；Computing formula is as follows:
V=(m2-m1)/D
S=V/h
In formula: V is volume of sample, m2For the saturated quality after sample immersion, m1The quality that saturated sample floats on a liquid, D
For fluid density, S is sample actual loading area, and h is specimen height；
(3) to sample imposed load, this load is entered by the proportionate relationship of sample standard lifting surface area with sample actual loading area
Row sum-equal matrix, makes the compressive stress acting on sample reach standard gauge provisioning request；
(4) refractoriness under load or pressure creep test, and log are carried out according to normal procedure step；
Normal procedure step described here, refers to 7 in " GB/T 5989 refractory material refractoriness under load test method "
Test procedure；7 test procedures in " YB/T370 refractory product refractoriness under load test method (non-differential-temperature-raising method) "；
7 test procedures in " GB/T5073 refractory material pressure creep test method ".
The present invention, compared with existing test method, has filled up the blank that special form brick can not carry out sample preparation, test.The present invention
Sample preparation size and experiment parameter can be adjusted according to special-shaped brick shape size, detect creep rate and the loading of checker brick accurately
Soften and start two important rs of temperature so that it is actual that test result can react checker brick truly, accurately
Serviceability.For using unit reasonable material to provide foundation, instruct air stove building construction, it is ensured that blast funnace hot blast stove produces peace
Entirely, its service life is extended.In industry play exemplary role, there is promotional value, bring preferable economic benefit and society
Benefit.
Accompanying drawing explanation
Fig. 1 is the specific embodiment of the invention 19 hole checker brick floor map.
Fig. 2 is the schematic diagram of specific embodiment of the invention sample preparation.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1,2, illustrate as a example by 19 hole checker brick by air stove.
(1) Fig. 1 is 19 hole checker brick floor map.According to brick size, produce and given size in GB or smelting mark
Close sample, and retain former brick face as far as possible, two bottom surfaces should parallel and surfacing.
The standard specimen of refractoriness under load test, metallurgical standard is defined as diameter 36 ± 0.5mm, high 50 ± 0.5mm
Cylinder, national standard is diameter 50 ± 0.5mm, high 50 ± 0.5mm, the cylinder of central through hole diameter 12～13mm.According to
Checker brick actual size, selects with national standard as reference, and sample preparation is diameter 50mm, there is the cylinder of through hole at high 50mm, center,
As shown in Figure 2.
The standard specimen of pressure creep rate test, national standard is diameter 50 ± 0.5mm, high 50 ± 0.5mm, central through hole are straight
The cylinder in footpath 12～13mm.Actual sample preparation is diameter 50mm, there is the cylinder of through hole at high 50mm, center, as shown in Figure 2.
(2) " seal method " is used to calculate sample actual loading face area: sample stress bottom surface to be dipped in upper ink paste, is printed on A4 paper
On, by scanner input computer, by graphics software, scanning patter is carried out gridding process, calculate sample actual
Stress surface area；Or
" drainage " is used to calculate sample actual loading face area: " GB/T 2997-2000 densification setting is resistance to reference to national standard
Fire preparing product bulk density, apparent porosity and true porosity test method ", utilize the close tester of pore body to record the volume of sample,
Its volume, divided by height, obtains sample actual loading area.Computing formula is as follows:
V=(m2-m1)/D
S=V/h
In formula: V is volume of sample, m2For the saturated quality after sample immersion, m1The quality that saturated sample floats on a liquid, D
For fluid density, S is sample lifting surface area, and h is specimen height.
(3) to sample imposed load, this load is closed in the ratio of sample standard lifting surface area with sample actual loading area
System is adjusted, and makes the compressive stress acting on sample reach standard gauge provisioning request.If 19 hole checker brick lifting surface areas are samples
The 67.91% of standard lifting surface area, then the counterweight weight applied is adjusted to the 67.91% of standard weights accordingly.
(4) refractoriness under load or pressure creep test, and log are carried out according to normal procedure step.
Claims (1)
1. a heterotypic fire brick refractoriness under load and pressure creep test method, it is characterised in that comprise the steps:
(1) according to the brick size of quarl, produce close with given size in GB or smelting mark, and the examination that shape is similar
Sample, and retain the original surface of brick as far as possible, two bottom surfaces are parallel and surfacing；
(2) " seal method " is used to calculate sample actual loading face area: sample stress bottom surface to be dipped in upper ink paste, is printed on A4 paper,
By in scanner input computer, by graphics software, scanning patter is carried out gridding process, calculate that sample is actual to be subject to
Power face area；Or
" drainage " is used to calculate sample actual loading face area: to utilize the close tester of pore body to record the volume of sample, its body
Amassing divided by height, obtain sample actual loading area, computing formula is as follows:
V=(m2-m1)/D
S=V/h
In formula: V is volume of sample, m2For the saturated quality after sample immersion, m1The quality that saturated sample floats on a liquid, D is
Fluid density, S is sample lifting surface area, and h is specimen height；
(3) to sample imposed load, this load is entered by the proportionate relationship of sample standard lifting surface area with sample actual loading area
Row sum-equal matrix, makes the compressive stress acting on sample reach standard gauge provisioning request；
(4) refractoriness under load or pressure creep test, and log are carried out according to normal procedure step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645023.7A CN106092696A (en) | 2016-08-09 | 2016-08-09 | Heterotypic fire brick refractoriness under load and pressure creep test method |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201610645023.7A CN106092696A (en) | 2016-08-09 | 2016-08-09 | Heterotypic fire brick refractoriness under load and pressure creep test method |
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| CN106092696A true CN106092696A (en) | 2016-11-09 |
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| CN201610645023.7A Pending CN106092696A (en) | 2016-08-09 | 2016-08-09 | Heterotypic fire brick refractoriness under load and pressure creep test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103201A (en) * | 2019-12-30 | 2020-05-05 | 彩虹显示器件股份有限公司 | Thermal deformation load stress loading method for overflow brick |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747069A (en) * | 2009-12-24 | 2010-06-23 | 中钢集团洛阳耐火材料研究院有限公司 | High-alumina product for steel-smelting electric furnace top |
| CN102134161A (en) * | 2011-04-08 | 2011-07-27 | 郑州科瑞耐火材料有限公司 | Special firebrick for roaster flame path wall and preparation method thereof |
| CN103760035A (en) * | 2014-02-10 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Dynamic airtight automatic deformation test system of high-temperature tester |
| CN105021460A (en) * | 2015-08-03 | 2015-11-04 | 王练 | Testing method for pressure-resisting strength of porous or special-shaped inorganic nonmetallic materials |
-
2016
- 2016-08-09 CN CN201610645023.7A patent/CN106092696A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747069A (en) * | 2009-12-24 | 2010-06-23 | 中钢集团洛阳耐火材料研究院有限公司 | High-alumina product for steel-smelting electric furnace top |
| CN102134161A (en) * | 2011-04-08 | 2011-07-27 | 郑州科瑞耐火材料有限公司 | Special firebrick for roaster flame path wall and preparation method thereof |
| CN103760035A (en) * | 2014-02-10 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Dynamic airtight automatic deformation test system of high-temperature tester |
| CN105021460A (en) * | 2015-08-03 | 2015-11-04 | 王练 | Testing method for pressure-resisting strength of porous or special-shaped inorganic nonmetallic materials |
Non-Patent Citations (2)
| Title |
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| 刘黎等: "大型高炉热风炉用格子砖的性能分析", 《武钢技术》 * |
| 高帅等: "蓄热室格子砖荷重软化温度试验方法", 《山东冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103201A (en) * | 2019-12-30 | 2020-05-05 | 彩虹显示器件股份有限公司 | Thermal deformation load stress loading method for overflow brick |
| CN111103201B (en) * | 2019-12-30 | 2021-11-09 | 彩虹显示器件股份有限公司 | Thermal deformation load stress loading method for overflow brick |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170703 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Wuhan factory in Hubei Province before the door No. 2 Applicant before: WUHAN IRON AND STEEL CORPORATION |
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Application publication date: 20161109 |