CN1641052A - Method and apparatus for predetermining natural ageing performance for hot-rolled steel products - Google Patents
Method and apparatus for predetermining natural ageing performance for hot-rolled steel products Download PDFInfo
- Publication number
- CN1641052A CN1641052A CN 200410013816 CN200410013816A CN1641052A CN 1641052 A CN1641052 A CN 1641052A CN 200410013816 CN200410013816 CN 200410013816 CN 200410013816 A CN200410013816 A CN 200410013816A CN 1641052 A CN1641052 A CN 1641052A
- Authority
- CN
- China
- Prior art keywords
- hot
- performance
- sample
- strip
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The present invention is especially the performance test of hot rolled steel after simulating natural ageing. The present invention features the artificial ageing for fast treatment and sample detection. The hot rolled steel with performance slightly higher than the specified indexes is sampled to form the re-tested sample; the sample is heated at constant temperature inside stove or furnace and tested for the precise performance indexes after natural ageing; and the re-tested steel is judged and processed based on the detected data. The present invention is favorable to ensuring the product quality, reducing stocks and lowering the production cost.
Description
Technical field
The invention belongs to the test of steel performance, especially relate to the detection of the mechanical property after the hot-strip simulating nature ageing treatment.
Background technology
Hot-strip ubiquity " ageing ", the steel strength index descends in promptly rolling back for some time, and plasticity index rises.In Iron and Steel Production, most qualified product, performance index during production testing and the performance index after the natural aging all satisfy the requirement of specified value index, judge easily; Do not reach the substandard product of specified value index request, judge easily yet.Yet when the production testing, its performance is a little more than the product of specified value index for those, and the product that wherein has is after natural aging, and its performance index are in the scope that specified value requires, and the product that has but is lower than the requirement of specified value.Known to the contriver, the present direct judgment basis (standard) of performance index after production testing fashion lacks hot-strip natural aging, also none perfect to the performance prediction method after the hot-strip natural aging.Therefore, when handling this series products at present, the one, directly introduce to the market or the user, wherein if any the failure, certainly will cause quality objection or economic compensation; The 2nd, directly change the original sentence to or declare uselessly, wherein if any eligible, certainly will cause unnecessary financial loss; The 3rd, product overstocks, and rechecks through surplus ten days natural agings, sampling, and qualified product dispatch from the factory, substandard product change the original sentence to or declare useless, certainly will because of wait for recheck cause ten surplus day the phenomenon that overstocks, overstock fund.Also can cause to improving steel strength and additionally increase production cost.So both caused unnecessary financial loss, influenced user's use again, even produced quality accident to iron and steel enterprise.
Summary of the invention
In order to overcome the defective that prior art exists, the invention provides a kind of method and apparatus of predicting performance after the hot-strip natural aging, performance index after can accurately predicting hot-strip natural aging, steel production enterprise can avoid steel to overstock, reduce the financial loss that quality objection and economic compensation etc. cause, and can make the user obtain qualified product again.
Method provided by the present invention is based on " ageing " of hot-strip, can finish fast with artificial aging.Artificial aging can have been eliminated the transformation stress or the thermal stresses of steel production processes effectively, and a large amount of test datas show, through after the suitable artificial aging art breading, steel performance detects numerical value and can be as accurate as steel performance numerical value after the natural aging.Feature of the present invention is to adopt the artificial aging fast processing and detect hot-strip reinspection sample, when the production testing initial survey, performance a little more than specified value index hot-strip, is carried out resampling immediately, is processed into the reinspection sample; To recheck sample and place in baking oven or the process furnace and heat, under 100 ℃-400 ℃ temperature, after thermostatically heating 30-180 minute, take out sample, carry out the check of steel performance again; According to detecting data, judge and handle that to rechecking steel all passers introduce or supply with the user to the market, the disqualified upon inspection person is changed the original sentence to or is declared useless.
Device of the present invention is an electric oven or process furnace, all has temperature control unit on it.
After the invention process, can in time judge the product of those performance index, and be handled, eliminate the phenomenon that overstocks that steel produce surplus in the of ten day therefrom a little more than the specified value index; Reduce quality objection and economic compensation, avoided the generation of quality accident; Improve the testing accuracy of product, can control the alloying constituent of steel effectively, reduced production cost.
Description of drawings (summary)
Embodiment
Embodiment of the present invention are under the hot-strip behind the production line, and at first production testing is carried out in sampling, and those performance index a little more than specified value index hot-strip, are carried out sampling second time immediately, are processed into the reinspection sample, in time carry out the artificial aging processing.To be rechecked sample and place the baking oven or the process furnace that have temperature control unit to heat, and under 100 ℃-400 ℃ temperature, after thermostatically heating 30-180 minute, take out and recheck sample, and carry out steel performance again and detect.According to rechecking the result, in time to the steel of the being rechecked processing of classifying.
Claims (2)
1, the Forecasting Methodology of performance after a kind of hot-strip natural aging, it is characterized in that: adopt the artificial aging fast processing and detect hot-strip reinspection sample, be about to be processed into the reinspection sample through the performance of production testing hot-strip resampling a little more than the specified value index request; To recheck sample and place in baking oven or the process furnace and heat, under 100 ℃-400 ℃ temperature, thermostatically heating is carried out Performance Detection to rechecking sample after 30 minutes-180 minutes; According to predicting the outcome, judge and processing being classified by the reinspection steel.
2, the equipment of performance prediction method after the described hot-strip natural aging of realization claim 1 is characterized in that having a baking oven or process furnace, and baking oven or process furnace all have temperature control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013816 CN1641052A (en) | 2004-01-01 | 2004-01-01 | Method and apparatus for predetermining natural ageing performance for hot-rolled steel products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410013816 CN1641052A (en) | 2004-01-01 | 2004-01-01 | Method and apparatus for predetermining natural ageing performance for hot-rolled steel products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1641052A true CN1641052A (en) | 2005-07-20 |
Family
ID=34867828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410013816 Pending CN1641052A (en) | 2004-01-01 | 2004-01-01 | Method and apparatus for predetermining natural ageing performance for hot-rolled steel products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1641052A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886162A (en) * | 2010-06-22 | 2010-11-17 | 武汉科技大学 | Method for simulating natural aging of low-carbon hot-rolled steel bars and wires |
| CN103540728A (en) * | 2013-09-25 | 2014-01-29 | 南京钢铁股份有限公司 | Method of manual accelerated simulation of natural aging of rapid cooling steel plate |
| CN104749045A (en) * | 2015-04-03 | 2015-07-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Artificial aging method for detecting true mechanical properties of steel wire rods |
| CN106353173A (en) * | 2016-09-08 | 2017-01-25 | 邢台钢铁有限责任公司 | Rapid ageing detecting method for high-carbon steel wire rod |
| CN107723458A (en) * | 2017-11-17 | 2018-02-23 | 湖南大学 | Heat treatment can reinforced aluminium alloy ag(e)ing process on-line monitoring method |
| CN109632461A (en) * | 2018-10-25 | 2019-04-16 | 合肥河钢新材料科技有限公司 | A kind of household electrical appliances Coil Coating Products aging resistance detection method |
| CN111607690A (en) * | 2020-07-02 | 2020-09-01 | 广东韶钢松山股份有限公司 | Processing method for improving percent of pass of tensile property of steel plate |
-
2004
- 2004-01-01 CN CN 200410013816 patent/CN1641052A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886162A (en) * | 2010-06-22 | 2010-11-17 | 武汉科技大学 | Method for simulating natural aging of low-carbon hot-rolled steel bars and wires |
| CN101886162B (en) * | 2010-06-22 | 2012-05-23 | 武汉科技大学 | Method for simulating natural aging of low-carbon hot-rolled steel bars and wires |
| CN103540728A (en) * | 2013-09-25 | 2014-01-29 | 南京钢铁股份有限公司 | Method of manual accelerated simulation of natural aging of rapid cooling steel plate |
| CN104749045A (en) * | 2015-04-03 | 2015-07-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Artificial aging method for detecting true mechanical properties of steel wire rods |
| CN106353173A (en) * | 2016-09-08 | 2017-01-25 | 邢台钢铁有限责任公司 | Rapid ageing detecting method for high-carbon steel wire rod |
| CN106353173B (en) * | 2016-09-08 | 2019-04-30 | 邢台钢铁有限责任公司 | The quick timeliness detection method of high-carbon steel wire rod |
| CN107723458A (en) * | 2017-11-17 | 2018-02-23 | 湖南大学 | Heat treatment can reinforced aluminium alloy ag(e)ing process on-line monitoring method |
| CN109632461A (en) * | 2018-10-25 | 2019-04-16 | 合肥河钢新材料科技有限公司 | A kind of household electrical appliances Coil Coating Products aging resistance detection method |
| CN109632461B (en) * | 2018-10-25 | 2021-05-11 | 合肥河钢新材料科技有限公司 | Method for detecting anti-aging performance of household appliance color coated sheet |
| CN111607690A (en) * | 2020-07-02 | 2020-09-01 | 广东韶钢松山股份有限公司 | Processing method for improving percent of pass of tensile property of steel plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107321801B (en) | Hot-rolled strip steel judgment method and hot-rolled online quality judgment system | |
| CN104517162B (en) | A kind of continuous annealing product hardness Online integration learns forecasting procedure | |
| US10290113B2 (en) | Surface state monitoring apparatus for metallic body and surface state monitoring method for metallic body | |
| CN1641052A (en) | Method and apparatus for predetermining natural ageing performance for hot-rolled steel products | |
| CN103074542A (en) | Steel strip for LED bracket and manufacturing method thereof | |
| CN115815345A (en) | Mechanism collaborative prediction method and system for predicting mechanical property of full-flow hot-rolled strip steel | |
| CN105414902A (en) | Manufacturing method of closure head of nuclear equipment | |
| CN107633316A (en) | The power network short-term load forecasting method of adaptive local nonlinear regression deviation compensation | |
| CN102286751B (en) | Method for judging pickling speed in cold rolling pickling technology | |
| CN101417292A (en) | Method for controlling rolling of medium and low grade electrical steel by means of conventional rolling model | |
| CN107541737B (en) | The method for improving belt steel surface pickling quality | |
| CN108445008A (en) | Method for detecting surface defects of strip steel | |
| CN104438533B (en) | High-strength steel hot forming intelligent flexible production method | |
| CN103205629A (en) | High-hardness steel belt for home appliances and manufacturing method | |
| JP2020534441A (en) | Mobile hot coil heat insulation heat treatment equipment | |
| CN101551376B (en) | Check method of rice processing precision | |
| CN101985687A (en) | Contact-type automatic measuring equipment and method for plate temperature | |
| US20180017374A1 (en) | Device and method for determining the loss on ignition of at least part of an iron and steel product | |
| CN101892375A (en) | Method for inspecting surface oxidation degree of annealed stainless steel band | |
| CN113649422A (en) | Hot image-based rough rolling billet quality detection system and method | |
| CN109307731A (en) | A kind of tobacco leaf position method of discrimination and device | |
| CN106244773A (en) | A kind of Forecasting Methodology of P92 steel tempering hardness | |
| CN101509057B (en) | Full-technique non-oriented electrical steel continuous annealing test method | |
| CN103076828B (en) | Method for controlling rusting of bottle cap by detecting water residue in skirt teeth of bottle cap | |
| CN114042762B (en) | Production method for improving rust resistance of deformed steel bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |