CN106048180A - Hot rolling method for alloy steel - Google Patents
Hot rolling method for alloy steel Download PDFInfo
- Publication number
- CN106048180A CN106048180A CN201610562145.XA CN201610562145A CN106048180A CN 106048180 A CN106048180 A CN 106048180A CN 201610562145 A CN201610562145 A CN 201610562145A CN 106048180 A CN106048180 A CN 106048180A
- Authority
- CN
- China
- Prior art keywords
- rolling
- alloy steel
- rolling method
- hot rolling
- degrees celsius
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
Abstract
The invention discloses a hot rolling method for alloy steel. The hot rolling method comprises the following steps: firstly, heating the alloy steel to be 1,190DEG C, insulating for 1.5 hours and then continuously controlling rolling on a rolling mill to obtain a steel plate with required thickness; and secondly, controlling the opening rolling temperature to be 1,000DEG C and finish rolling temperature to be 900DEG C, immediately performing water cooling after rolling, and enabling the steel plate to be slowly cooled after cooling. According to the hot rolling method for the alloy steel, provided by the invention, results obtained by analyzing and testing means such as phase structure analysis, tensile tests and fracture scanning show that the alloy steel is good in mechanical property and remarkably improved in strength and toughness aspects.
Description
Technical field
The present invention relates to technical field of alloy steel, particularly relate to a kind of steel alloy hot-rolling method.
Background technology
Under normal circumstances, automobile high-strength steel alloy is required for using through hot pressing processing aftershaping, hot procedure
The structure property of middle steel changes (such as dynamically/static recovery and recrystallization etc.), different alloying elements and heater
Skill can produce impact to the hot change behavior of its steel, thus directly affects the performance of steel.
Summary of the invention
For solving the problems referred to above present in prior art and practical situation, the invention provides a kind of steel alloy hot rolling side
Method, it is characterised in that comprise the following steps:
(1) steel alloy is heated to 1190 degrees Celsius, after insulation 1.5h, obtains required thickness in the rolling of continuous control on milling train
The steel plate of degree；
(2) controlling start rolling temperature is 1000 degrees Celsius, and finishing temperature is 900 degrees Celsius, water-cooled immediately after rolling, and makes it delay after cooling
Slow cool down.
Preferably, the chilling temperature of the water-cooled in described step (2) controls at 500 ~ 600 degrees Celsius, and rate of cooling controls
10 ~ 15OC/s。
Beneficial effect:
A kind of steel alloy hot-rolling method that the present invention provides, the steel alloy obtained by the method passes through phase constitution analysis, stretching
Test, Fracture scan etc. are analyzed the result of means of testing acquisition and are shown, its mechanical property is the best, especially in intensity, toughness
Aspect is significantly improved.
Detailed description of the invention
Technical solution of the present invention is described in detail below.
The invention provides a kind of steel alloy hot-rolling method, comprise the following steps:
(1) steel alloy is heated to 1190 degrees Celsius, after insulation 1.5h, obtains required thickness in the rolling of continuous control on milling train
The steel plate of degree；
(2) controlling start rolling temperature is 1000 degrees Celsius, and finishing temperature is 900 degrees Celsius, water-cooled immediately after rolling, and makes it delay after cooling
Slow cool down.
Further, the chilling temperature of the water-cooled in described step (2) controls at 500 ~ 600 degrees Celsius, rate of cooling control
System is 10 ~ 15OC/s。
A kind of steel alloy hot-rolling method that the present invention provides, the steel alloy obtained by the method by phase constitution analysis,
Tension test, Fracture scan etc. analyze means of testing obtain result show, its mechanical property is the best, especially intensity,
Toughness aspect is significantly improved.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (2)
1. a steel alloy hot-rolling method, it is characterised in that comprise the following steps:
(1) steel alloy is heated to 1190 degrees Celsius, after insulation 1.5h, obtains required thickness in the rolling of continuous control on milling train
The steel plate of degree；
(2) controlling start rolling temperature is 1000 degrees Celsius, and finishing temperature is 900 degrees Celsius, water-cooled immediately after rolling, and makes it delay after cooling
Slow cool down.
A kind of steel alloy hot-rolling method the most according to claim 1, it is characterised in that the water-cooled in described step (2)
Chilling temperature controls at 500 ~ 600 degrees Celsius, and rate of cooling controls 10 ~ 15OC/s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562145.XA CN106048180A (en) | 2016-07-16 | 2016-07-16 | Hot rolling method for alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562145.XA CN106048180A (en) | 2016-07-16 | 2016-07-16 | Hot rolling method for alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106048180A true CN106048180A (en) | 2016-10-26 |
Family
ID=57187703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610562145.XA Pending CN106048180A (en) | 2016-07-16 | 2016-07-16 | Hot rolling method for alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106048180A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1112657A (en) * | 1997-06-25 | 1999-01-19 | Sumitomo Metal Ind Ltd | Manufacture of ti added hot rolled high tensile steel plate having excellent formability |
| CN101082102A (en) * | 2007-03-08 | 2007-12-05 | 马鞍山钢铁股份有限公司 | High-strength ship hull structural steel and production method of plate roll |
| JP2011052321A (en) * | 2009-08-06 | 2011-03-17 | Jfe Steel Corp | High-strength hot-rolled steel sheet having excellent low temperature toughness and method for producing the same |
| CN103774039A (en) * | 2013-12-26 | 2014-05-07 | 马钢(集团)控股有限公司 | Manufacturing process for steel hot-rolled plate coil for welded gas bottle |
-
2016
- 2016-07-16 CN CN201610562145.XA patent/CN106048180A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1112657A (en) * | 1997-06-25 | 1999-01-19 | Sumitomo Metal Ind Ltd | Manufacture of ti added hot rolled high tensile steel plate having excellent formability |
| CN101082102A (en) * | 2007-03-08 | 2007-12-05 | 马鞍山钢铁股份有限公司 | High-strength ship hull structural steel and production method of plate roll |
| JP2011052321A (en) * | 2009-08-06 | 2011-03-17 | Jfe Steel Corp | High-strength hot-rolled steel sheet having excellent low temperature toughness and method for producing the same |
| CN103774039A (en) * | 2013-12-26 | 2014-05-07 | 马钢(集团)控股有限公司 | Manufacturing process for steel hot-rolled plate coil for welded gas bottle |
Non-Patent Citations (2)
| Title |
|---|
| 王延溥: "《轧钢工艺学》", 31 July 1981, 北京：冶金工业出版社 * |
| 王有铭，李曼云，韦光: "《钢材的轧制控制和控制冷却》", 31 May 1995, 北京：冶金工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |