CN101769835A - Sample preparation method of oxygen content measurement of steels - Google Patents
Sample preparation method of oxygen content measurement of steels Download PDFInfo
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- CN101769835A CN101769835A CN201010040099A CN201010040099A CN101769835A CN 101769835 A CN101769835 A CN 101769835A CN 201010040099 A CN201010040099 A CN 201010040099A CN 201010040099 A CN201010040099 A CN 201010040099A CN 101769835 A CN101769835 A CN 101769835A
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- oxygen content
- steels
- sample preparation
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000001301 oxygen Substances 0.000 title claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 34
- 238000005464 sample preparation method Methods 0.000 title abstract 7
- 238000005259 measurement Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims abstract description 39
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000005308 flint glass Substances 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000010561 standard procedure Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The invention relates to a sample preparation method of the oxygen content measurement of steels, which comprises sample preparation methods of pipes, sheets and high-hardness steels and can satisfy the requirements on the oxygen content measurement on the steels in a bearing manufacturing enterprise according the technical requirements of products. Especially for thin-wall pipes, thin sheets, high-hardness steels, and other steels, samples can not be manufactured according to rules in a standard, therefore, the oxygen content of steels at key parts of a bearing can not be measured; and the samples can be manufactured by adopting the sample preparation method in the invention, and the oxygen content can also be measured according to procedures, devices, and methods in an GB/T11261-2006 standard. The samples manufactured by using the sample preparation method can not only be used for measuring the steels, but also be used for measuring the oxygen contents of other metals, thereby overcoming limitations of the sample preparation method in the standard, broadening the usable range and ensuring that more steel products can be all subjected to the oxygen content measurement by using the standard method; and the sample preparation method provides reliable basis and guarantees especially for analyzing and searching early failure reasons of bearing products.
Description
Technical field
The present invention relates to a kind of method for making sample, particularly a kind of method for making sample of steel determination of oxygen content, the sample preparation when also suitable other metal material of the method is to determination of oxygen content simultaneously.
Background technology
The development that leaps along with industry, the demand of high precision, long life bearing is increasing, especially a large amount of dynamo bearing, automobile chassis bearings that use on automobile, automobile is with 4 angular contact bearings, these high end bearings propose higher requirement to bearing steel material, the bearing steel oxygen content is to weigh an important indicator of bearing steel quality, because the oxygen content of non-metallic inclusion distributes very big to the life-span influence of bearing steel, the snotter amount is higher, life-span is just short more, and oxide inclusions is to influence the bearing steel major reason of fatigue lifetime.The bearing steel oxygen content generally is controlled at less than 12～15ppm, should be controlled at less than 10ppm for the bearing steel of high-quality refining.
The steel product quality of some kind of invar factory fails to reach the steel standard of dispatching from the factory, and has brought many troubles for Production of bearing producer, even can't produce high-end bearing products.For guaranteeing the quality of high end bearing, at first will guarantee to make the bearing steel quality of high end bearing, because of harmful being mingled with in the control bearing steel is one of key issue of production high-quality bearing, Production of bearing producer need measure the oxygen content in the bearing steel for this reason.
Existing Iron and Steel Production factory required method for making sample during to the steel determination of oxygen content, all be to make, hereinafter to be referred as " standard " according to the method that provides in GB/T11261-2006 " iron and steel Determination of Oxygen PULSE HEATING inert gas fusion---the infrared absorption " standard.
Used sample preparation in this bioassay standard, be to wait to try the steel car to make diameter be 4-5mm, length is greater than the pole of 30mm, under certain rotating speed, rotate polishing, the polishing back cuts off the end with wire nipper, cuts into the bulk of required weight again, washes down successively with phenixin or acetone in ultrasonic cleaner then, the reusable heat wind is dried to be placed in the dry measuring cup standbyly, should avoid oxidation, the contamination of sample preparation in the operation.
But in actual production, Production of bearing producer is used to make the general thin walled tube material that adopt of steel of bearing outer ring, inner ring more, especially microminiature deep groove ball bearing, its wall thickness only has 1.5mm, just more can't carry out sample preparation according to the method for GB/T11261-2006 standard, promptly these steel all can't be measured oxygen content.
Some bearing that has dispatched from the factory and used in addition, it should not lose efficacy routinely, but lost efficacy in advance sometimes, especially at this moment high-end bearing products seeks reason with regard to needing that product is carried out failure analysis, at first will analyze the steel starting material that use, need the oxygen content of steel is measured, therefore for carrying out determination of oxygen content,, also can't implement if also adopt the method in the national standard to carry out sample preparation through thermal treatment high rigidity metal material.
But in enterprise's production, business process, according to the technical requirement of product and user's demand, especially high-end bearing products but all needs the oxygen content of steel is redeterminated, to guarantee product quality.
Summary of the invention
Technical matters to be solved by this invention is: the method for making sample that a kind of new steel determination of oxygen content is provided, can be according to the technical requirement of product, satisfy steel Determination of Oxygen needs, particularly to steel such as thin-wall pipes, light sheet, high rigidity, can't be by the regulation sample preparation in the standard, now adopt just energy sample preparation of the method, and still can carry out Determination of Oxygen by the program in the GB/T11261-2006 standard, equipment, method.
The present invention addresses the above problem the technical scheme that is adopted: the method for making sample that a kind of steel determination of oxygen content is provided, 1) after the method for making sample (being applicable to that wall thickness≤5mm manages material) of pipe material steel: a, car fall the inside and outside lip-deep oxide layer of pipe material, decarburized layer, will manage the annulus that material cuts into required width again; B, annulus is launched, and flatten into fine strip shape, use the file filing, use oxide-free special file finished surface at last again; C, cut into the sample of the required weight of standard with cutting implement, and in ultrasonic cleaner with phenixin or acetone successively after secondary cleaning, place dry measuring cup standby with hot blast drying.
2), the method for making sample of high rigidity steel: a, the high rigidity steel are cut into bulk, b, bulk expected that grinding is flat after, surface with the block material of silit flint glass paper polishing, also pursue the road grinding with special thick, fine sandpaper, polish with at least 1600 granule paper more at last, c, the sample that polishing is good are placed in the ultrasonic cleaner with phenixin or acetone successively after secondary cleaning, place dry measuring cup standby with hot blast drying.
3), the method for making sample of thin plate steel: a, on the thin plate steel, intercept fine strip shape, then with file with its surperficial filing, process Siping City's face with the file of special anaerobic at last, b, cut into the sample of the required weight of standard with cutting implement, and in ultrasonic cleaner with phenixin or acetone after secondary cleaning, place dry measuring cup standby with hot blast drying.
Compared with prior art, the invention has the advantages that: existing thin-wall pipes, light sheet, high rigidity steel are widely used for making bearing, if method according to standard, can't produce sample with above-mentioned steel, then also can't measure the oxygen content of the metal material that much is used for the bearing key position;
A kind of new method for making sample now is provided, just can satisfy steel Determination of Oxygen needs, the mensuration that not only is used for steel, also can be used for other metal Determination of Oxygen, both satisfied the technical requirement of high-end bearing products and user's demand, also guaranteed simultaneously, overcome the limitation of method for making sample in the standard for production high-quality bearing provides the steel raw material, now enlarged usable range, allowed more steel product can both utilize the method for standard to carry out Determination of Oxygen;
When especially the analysis bearing products being shifted to an earlier date failure reasons, at first will analyze the starting material steel, the method just provides reliable mensuration foundation and assurance for it.
Embodiment
Below embodiments of the invention are described in further detail.
One), the method for making sample of pipe material steel, be applicable to that thickness of pipe≤5mm manages material.
Embodiment
1, adopting diameter is 20mm, and pipe thickness is that the steel pipe material of 3mm is made sample, will manage feed collet earlier and hold back turning, behind the oxide skin on the inside and outside surface of removal pipe material, each 0.5mm of decarburized layer, at this moment tube blank size is external diameter Φ 19mm, and wall thickness 2mm steel pipe will be managed material again and be cut into the annulus that width is 5mm.
2, again that 5mm is wide annulus launches, make the sample of 5 * 60mm strip, then with file with its surperficial filing, use the oxide-free smooth file of special diamond at last, processing other four planes except that both ends of the surface, surface after processing is handled should smooth, free of surface defects, and metallic luster is arranged.
3, cut into the sample of required weight 0.5～1 gram in the national standard with cutting implement, then in ultrasonic cleaner, successively after 3 minutes secondary cleaning, and standby with inserting behind the hot blast drying in the dry measuring cup with phenixin or acetone.
Sample should be avoided the oxidation and the contamination of sample in the process of processing, need instrument and tweezers gripping with clean anaerobic, and not handy hand touches.
Two), the method for making sample of high rigidity steel.
1, with the determined high rigidity steel of crossing through quenching heat treatment, cut into the block sample of square of 6 * 6 * 6mm (full-size), square can be controlled in 3～6mm scope.
2, adopt the method for grinding, after sample was polished, the road grinding was also pursued from coarse to fine with special sand paper in the surface of the 60 granule paper polishing sample preparation made from silit again, also polishes with 1600 special fine sandpapers at least together at last.
3, the good sample of will polishing is placed in the ultrasonic cleaner, successively after 3 minutes secondary cleaning, inserts in the dry measuring cup standby with phenixin or acetone after the reusable heat wind is done.
Sample should be avoided the oxidation and the contamination of sample preparation in the process of processing, need instrument and tweezers gripping with clean anaerobic, and not handy hand touches.
Three), the method for making sample of thin plate steel
1, first intercepting fine strip shape steel on thin plate, as make the bar-shaped sample of 5 * 60mm, then with file with its surperficial filing, process Siping City's face with the oxide-free smooth file of special diamond at last.
2, cut into the sample of required weight 0.5～1 gram with cutting implement, then in ultrasonic cleaner, after 3 minutes secondary cleaning, and be placed in the dry measuring cup standby with hot blast drying with phenixin or acetone.
With above-mentioned prefabricated sample, put in the graphite crucible that is in argon gas stream, be electrically heated to 2300 ℃ of fusions with low-voltage alternating-current, the oxygen that divided oxide solves in the sample is carbon monoxide and separates out, import infrared detector and measure, promptly still press GB/T11261-2006 standard test oxygen content.
Claims (4)
1. the method for making sample of a steel determination of oxygen content is characterized in that:
1) after the method for making sample (being applicable to that wall thickness≤5mm manages material) of pipe material steel: a, car fall the inside and outside lip-deep oxide layer of pipe material, decarburized layer, will manage the annulus that material cuts into required width again; B, annulus is launched, and flatten into fine strip shape, use the file filing, use oxide-free special file finished surface at last again; C, cut into the sample of the required weight of standard with cutting implement, and in ultrasonic cleaner with phenixin or acetone successively after secondary cleaning, place dry measuring cup standby with hot blast drying;
2), the method for making sample of high rigidity steel: a, the high rigidity steel are cut into bulk, b, bulk expected that grinding is flat after, surface with the block material of silit flint glass paper polishing, also pursue the road grinding with special thick, fine sandpaper, polish with at least 1600 granule paper more at last, c, the sample that polishing is good are placed in the ultrasonic cleaner with phenixin or acetone successively after secondary cleaning, place dry measuring cup standby with hot blast drying;
3), the method for making sample of thin plate steel: a, on the thin plate steel, intercept fine strip shape, then with file with its surperficial filing, process Siping City's face with the file of special anaerobic at last, b, cut into the sample of the required weight of standard with cutting implement, and in ultrasonic cleaner with phenixin or acetone successively after secondary cleaning, place dry measuring cup standby with hot blast drying.
2. the method for making sample of steel determination of oxygen content according to claim 1, it is characterized in that adopting diameter is 20mm, pipe thickness is that the steel pipe material of 3mm is made sample, car removes the inside and outside surface of pipe material and makes diameter 19mm, the pipe material of wall thickness 2mm, to manage material again and cut into the annulus that width is 5mm, annulus will be launched to make 5 * 60mm bar-shaped sample.
3. the method for making sample of steel determination of oxygen content according to claim 1, after it is characterized in that to cut into the square bulk of 6 * 6 * 6mm (full-size) through the high rigidity steel that quenching heat treatment is crossed, the block grinding of square is polished, the sample that polishing is good is placed in the ultrasonic cleaner with phenixin or acetone successively through 3 minutes clear Xian of secondary again.
4. the method for making sample of steel determination of oxygen content according to claim 1 is characterized in that the fine strip shape that intercepts 5 * 60mm on the thin plate steel makes sample.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010040099A CN101769835A (en) | 2010-01-20 | 2010-01-20 | Sample preparation method of oxygen content measurement of steels |
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| CN201010040099A CN101769835A (en) | 2010-01-20 | 2010-01-20 | Sample preparation method of oxygen content measurement of steels |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778370A (en) * | 2011-05-13 | 2012-11-14 | 中国科学院金属研究所 | Sample preparation method for accurately measuring trace hydrogen in steel |
| CN102830082A (en) * | 2012-08-03 | 2012-12-19 | 河北钢铁股份有限公司邯郸分公司 | Preparation method of stokehold steel-making gas specimen as well as method for analyzing gas content |
| CN103033404A (en) * | 2012-05-09 | 2013-04-10 | 宝钢集团新疆八一钢铁有限公司 | Method for preparing and determining spring flat steel oxygen and nitrogen sample |
| CN103940845A (en) * | 2014-03-11 | 2014-07-23 | 工业和信息化部电子第五研究所 | Measuring method for thermal conductivity of metal at high temperature |
| CN103994927A (en) * | 2014-05-21 | 2014-08-20 | 工业和信息化部电子第五研究所 | Young modulus testing method for metal |
| CN105387824A (en) * | 2015-11-20 | 2016-03-09 | 武汉钢铁(集团)公司 | Quenched steel decarburized layer depth measuring method |
| CN106493375A (en) * | 2016-11-07 | 2017-03-15 | 攀钢集团攀枝花钢钒有限公司 | The preparation method of vananum determination of oxygen content sample |
| CN107817141A (en) * | 2017-09-30 | 2018-03-20 | 宣化钢铁集团有限责任公司 | A kind of method for making sample and analysis method of oxygen nitrogen analysis sample |
| CN108254376A (en) * | 2018-01-03 | 2018-07-06 | 江苏九天光电科技有限公司 | A kind of fine steel decarburized layer deepness measuring method |
| CN110462376A (en) * | 2017-03-31 | 2019-11-15 | 日铁日新制钢株式会社 | The quality evaluating method of steam treatment product |
| CN110967236A (en) * | 2019-12-19 | 2020-04-07 | 中国航发哈尔滨轴承有限公司 | Preparation method of sample for measuring oxygen content in G13Cr4Mo4Ni4V steel |
| CN111366551A (en) * | 2018-12-26 | 2020-07-03 | 中核北方核燃料元件有限公司 | Method for determining carbon content in uranium zirconium alloy |
| CN111781043A (en) * | 2020-07-09 | 2020-10-16 | 江苏隆达超合金航材有限公司 | Sample preparation method for measuring oxygen content of nickel-based superalloy |
| CN114112590A (en) * | 2021-11-26 | 2022-03-01 | 山东钢铁股份有限公司 | Treatment method of gear steel oxygen content detection sample |
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2010
- 2010-01-20 CN CN201010040099A patent/CN101769835A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778370A (en) * | 2011-05-13 | 2012-11-14 | 中国科学院金属研究所 | Sample preparation method for accurately measuring trace hydrogen in steel |
| CN102778370B (en) * | 2011-05-13 | 2014-11-26 | 中国科学院金属研究所 | Sample preparation method for accurately measuring trace hydrogen in steel |
| CN103033404A (en) * | 2012-05-09 | 2013-04-10 | 宝钢集团新疆八一钢铁有限公司 | Method for preparing and determining spring flat steel oxygen and nitrogen sample |
| CN102830082A (en) * | 2012-08-03 | 2012-12-19 | 河北钢铁股份有限公司邯郸分公司 | Preparation method of stokehold steel-making gas specimen as well as method for analyzing gas content |
| CN103940845B (en) * | 2014-03-11 | 2017-01-18 | 工业和信息化部电子第五研究所 | Measuring method for thermal conductivity of metal at high temperature |
| CN103940845A (en) * | 2014-03-11 | 2014-07-23 | 工业和信息化部电子第五研究所 | Measuring method for thermal conductivity of metal at high temperature |
| CN103994927A (en) * | 2014-05-21 | 2014-08-20 | 工业和信息化部电子第五研究所 | Young modulus testing method for metal |
| CN103994927B (en) * | 2014-05-21 | 2016-06-08 | 工业和信息化部电子第五研究所 | The Young's modulus measuring method of metal |
| CN105387824A (en) * | 2015-11-20 | 2016-03-09 | 武汉钢铁(集团)公司 | Quenched steel decarburized layer depth measuring method |
| CN105387824B (en) * | 2015-11-20 | 2018-07-10 | 武汉钢铁有限公司 | Hardened steel decarburized layer deepness measuring method |
| CN106493375A (en) * | 2016-11-07 | 2017-03-15 | 攀钢集团攀枝花钢钒有限公司 | The preparation method of vananum determination of oxygen content sample |
| CN110462376A (en) * | 2017-03-31 | 2019-11-15 | 日铁日新制钢株式会社 | The quality evaluating method of steam treatment product |
| US10788472B2 (en) | 2017-03-31 | 2020-09-29 | Nippon Steel Nisshin Co., Ltd. | Method for evaluating the quality of steam-treated products |
| CN107817141A (en) * | 2017-09-30 | 2018-03-20 | 宣化钢铁集团有限责任公司 | A kind of method for making sample and analysis method of oxygen nitrogen analysis sample |
| CN108254376A (en) * | 2018-01-03 | 2018-07-06 | 江苏九天光电科技有限公司 | A kind of fine steel decarburized layer deepness measuring method |
| CN111366551A (en) * | 2018-12-26 | 2020-07-03 | 中核北方核燃料元件有限公司 | Method for determining carbon content in uranium zirconium alloy |
| CN110967236A (en) * | 2019-12-19 | 2020-04-07 | 中国航发哈尔滨轴承有限公司 | Preparation method of sample for measuring oxygen content in G13Cr4Mo4Ni4V steel |
| CN111781043A (en) * | 2020-07-09 | 2020-10-16 | 江苏隆达超合金航材有限公司 | Sample preparation method for measuring oxygen content of nickel-based superalloy |
| CN114112590A (en) * | 2021-11-26 | 2022-03-01 | 山东钢铁股份有限公司 | Treatment method of gear steel oxygen content detection sample |
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Open date: 20100707 |