CN105642844B - A kind of casting method of 2205 two-phase stainless steel ingot - Google Patents
A kind of casting method of 2205 two-phase stainless steel ingot Download PDFInfo
- Publication number
- CN105642844B CN105642844B CN201610004658.9A CN201610004658A CN105642844B CN 105642844 B CN105642844 B CN 105642844B CN 201610004658 A CN201610004658 A CN 201610004658A CN 105642844 B CN105642844 B CN 105642844B
- Authority
- CN
- China
- Prior art keywords
- casting
- stainless steel
- phase stainless
- ingot
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
Abstract
The present invention relates to a kind of casting method of 2205 two-phase stainless steel ingot, it is characterized in that：Before I casting, ingot mould baking temperature scope is 60~65 DEG C；Temperature range when II molten steel is cast is controlled at 1,560 1565 DEG C；III casting subtracts stream and requires that 200mm starts the 1st time and subtracts stream under ingot body is cast to cap mouth line；100mm subtracts stream the 2nd time under cap mouth line.2205 two-phase stainless steel ingots of this method casting, realize diameter phi 250mm-φ 432mm 2205 two phase stainless steel round steel non-stop layer shrinkage cavities, the lumber recovery of round steel are greatly improved.
Description
Technical field
The present invention relates to a kind of casting method of stainless steel, and in particular to a kind of casting side of 2205 two-phase stainless steel ingot
Method.
Background technology
2205 two phase stainless steels are due to higher Cr, Mo and N content, while austenite and ferrite in room temperature texture
Ratio is according to about 1:1 coexists, therefore has high intensity（Its yield strength is generally twice of austenitic stainless steel）, it is good resistance to
Outstanding advantages of Cl- spot corrosion, anticorrosion stress-resistant and welding performance, obtained extensively in fields such as petrochemical industry, salt manufacturing, water conservancy project, shipbuildings
General use.Compared with common 316L austenitic stainless steels and 904L super austenitic stainless steels, Ni content substantially reduces in steel,
Manufacturing cost reduces, category high-performance, resource-conserving steel grade.
2205 round steel are mainly used in the production of pipe, flange, axle class etc., have higher structure property requirement to material
Outside, the central pipe after while also being processed to round steel forging has strict demand.Because central pipe is both the accumulation regions of segregation, again
Finished product processing to rear portion brings adverse effect, and situation severe patient directly sentences useless.Influence central pipe on the one hand with material into
Sub-control is formed with pass, while also closely related with forging ratio, the control parameter of solidification of molten steel process etc..The diameter of general round steel is got over
Greatly, trend caused by central pipe is more notable.The steel ingot of the casting method casting of existing 2205 two-phase stainless steel ingot, it is traditional
Technique is controlled to avoid the generation of central pipe to below φ 250mm round steel, but for more than φ 250mm round steel, pole
Be easily caused the generation of central pipe, for example, φ 432mm 2205 round steel shrinkage cavity diameter up to 70mm.This directly constrains 2205
The specification series metaplasia production of round steel.
The content of the invention
In order to overcome the above-mentioned deficiency of the casting method of existing 2205 two-phase stainless steel ingot, the present invention provides a kind of 2205 pairs
The casting method of mutually stainless steel ingot, the 2205 two-phase stainless steel ingots cast with this method are big in 2205 two phase stainless steel forgings
During diameter round steel, the central pipe of round steel is eliminated.
Originally the mass percent of 2205 two-phase stainless composition of steel is：
0 ＜ C≤0.030%, 0 ＜ Si≤1.00%, 0 ＜ Mn≤2.00%, P≤0.030%, S≤0.020%,
Cr：21.00%~23.00%, Ni：4.50%~6.50%, Mo：2.50%~3.50%, N：0.14%~0.20%, remaining
For iron and inevitable impurity.
The casting method of this 2205 two-phase stainless steel ingot is characterized in：
Before I casting, it is desirable to which ingot mould purging is clean, and ingot mould baking temperature scope is 60~65 DEG C；
Temperature range when II molten steel is cast is controlled at 1560-1565 DEG C；
III casting subtracts stream and requires that 200mm starts the 1st time and subtracts stream under ingot body is cast to cap mouth line；100mm the 2nd under cap mouth line
It is secondary to subtract stream.
Beneficial effects of the present invention
The present invention is directed to 2205 two phase stainless steel major diameter forging round steel central pipe Producing reasons, it is proposed that steel ingot pours
The ingot mould key preparation point of casting process, the control range of molten steel temperature, casting subtract stream technique etc., realize diameter phi 250mm-φ
432mm 2205 two phase stainless steel round steel non-stop layer shrinkage cavities, the lumber recovery of round steel is greatly improved.
Embodiment
With reference to the embodiment of embodiment process in detail, but the embodiment of the present invention not office
It is limited to following embodiments.
Embodiment one
1st, the mass percent of the chemical composition of 2205 round steel is：
C：0.021%, Si：0.52%, Mn：1.07%, P：0.026%, S：0.001%, Cr：22.35%, Ni：
5.53%, Mo：3.16%, N：0.1645%, remaining is iron and inevitable quality.
2nd, it is 8.4t to mold ingot shape, and common mode has cast 5 steel ingots.
3rd, before casting, it is desirable to which ingot mould purging is clean, ingot mould 60 DEG C of mean temperature of baking.
4th, 1560-1563 DEG C of temperature range when molten steel is cast.
5th, casting subtracts stream requirement, and 200mm starts the 1st time and subtracts stream under ingot body is cast to cap mouth line；100mm the 2nd under cap mouth line
It is secondary to subtract stream.（The flow for subtracting stream twice is controlled as the 70% of normal discharge）
Using the present invention, a diameter of φ 345mm and φ 432mm 2205 two phase stainless steel round steel are forged, central pipe is thorough
Bottom is eliminated.
Embodiment two
1st, the mass percent of the chemical composition of 2205 cut deals is：
C：0.017%, Si：0.47%, Mn：1.08%, P：0.023%, S：0.001%, Cr：22.60%, Ni：
5.50%, Mo：3.10%, N：0.1501%, remaining is iron and inevitable quality.
2nd, it is 8.4t to mold ingot shape, and common mode has cast 5 steel ingots.
3rd, before casting, it is desirable to which ingot mould purging is clean, ingot mould 63 DEG C of mean temperature of baking.
4th, 1560-1565 DEG C of temperature range when molten steel is cast.
5th, casting subtracts stream technique：200mm starts the 1st time and subtracts stream under ingot body is cast to cap mouth line；100mm the 2nd under cap mouth line
It is secondary to subtract stream.（The flow for subtracting stream twice is controlled as the 70% of normal discharge）Using the present invention, forge a diameter of φ 432mm's
2205 two phase stainless steel round steel, central pipe are thoroughly eliminated.
Claims (1)
1. a kind of casting method of 2205 two-phase stainless steel ingot, it is characterized in that：
Before I casting, ingot mould baking temperature scope is 60~65 DEG C；
Temperature range when II molten steel is cast is controlled at 1560-1565 DEG C；
III casting subtracts stream and requires that 200mm starts the 1st time and subtracts stream under ingot body is cast to cap mouth line；100mm subtracts for the 2nd time under cap mouth line
Stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004658.9A CN105642844B (en) | 2016-01-07 | 2016-01-07 | A kind of casting method of 2205 two-phase stainless steel ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004658.9A CN105642844B (en) | 2016-01-07 | 2016-01-07 | A kind of casting method of 2205 two-phase stainless steel ingot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105642844A CN105642844A (en) | 2016-06-08 |
| CN105642844B true CN105642844B (en) | 2018-03-13 |
Family
ID=56490453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610004658.9A Active CN105642844B (en) | 2016-01-07 | 2016-01-07 | A kind of casting method of 2205 two-phase stainless steel ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105642844B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387944A (en) * | 2020-11-25 | 2021-02-23 | 山西太钢不锈钢股份有限公司 | Method for solving steel flowing on surface of steel ingot |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970194A (en) * | 2006-12-05 | 2007-05-30 | 攀钢集团成都钢铁有限责任公司 | Killed steel casting method |
| CN101274356A (en) * | 2008-05-16 | 2008-10-01 | 山西太钢不锈钢股份有限公司 | Dead-melted steel ingot and mold and casting method thereof |
| CN101716659A (en) * | 2009-11-28 | 2010-06-02 | 山西太钢不锈钢股份有限公司 | Method for mold casting of molten steel |
| CN102274932A (en) * | 2011-08-05 | 2011-12-14 | 莱芜钢铁集团有限公司 | Two-ladle combined casting device and method for steel ingot |
| CN102626769A (en) * | 2012-04-10 | 2012-08-08 | 遵义拓特铸锻有限公司 | Manufacturing process of pump body casting of super duplex stainless steel centrifugal pump |
| CN105112790A (en) * | 2015-09-21 | 2015-12-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-strength wear-resistant spheroidal-graphit cast steel and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100515041B1 (en) * | 2000-06-23 | 2005-09-15 | 주식회사 포스코 | Method for continuous annealing the hot-rolled duplex stainless steel coil |
| US20080296354A1 (en) * | 2007-05-31 | 2008-12-04 | Mark Crockett | Stainless steel or stainless steel alloy for diffusion bonding |
| CN102618797B (en) * | 2012-03-30 | 2013-12-11 | 包头市泽傲科贸有限公司 | Nickel-chromium alloy aluminum-water distributor with upper and lower fastening rings |
-
2016
- 2016-01-07 CN CN201610004658.9A patent/CN105642844B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970194A (en) * | 2006-12-05 | 2007-05-30 | 攀钢集团成都钢铁有限责任公司 | Killed steel casting method |
| CN101274356A (en) * | 2008-05-16 | 2008-10-01 | 山西太钢不锈钢股份有限公司 | Dead-melted steel ingot and mold and casting method thereof |
| CN101716659A (en) * | 2009-11-28 | 2010-06-02 | 山西太钢不锈钢股份有限公司 | Method for mold casting of molten steel |
| CN102274932A (en) * | 2011-08-05 | 2011-12-14 | 莱芜钢铁集团有限公司 | Two-ladle combined casting device and method for steel ingot |
| CN102626769A (en) * | 2012-04-10 | 2012-08-08 | 遵义拓特铸锻有限公司 | Manufacturing process of pump body casting of super duplex stainless steel centrifugal pump |
| CN105112790A (en) * | 2015-09-21 | 2015-12-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-strength wear-resistant spheroidal-graphit cast steel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105642844A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5682602B2 (en) | Method for producing Ni-containing high alloy round billet with excellent inner surface quality | |
| WO2008061452A1 (en) | Roller for welding pipe mill | |
| CN100507047C (en) | Cr-Mo alloyed steel round billet produced by arc continuous casting machine and technique thereof | |
| CN101954548A (en) | Ultra-low-carbon rare earth stainless steel welding wire and preparation method thereof | |
| CN103849794A (en) | Environmental self-lubricating wear-resistant copper alloy and preparation method thereof | |
| CN108286025A (en) | A kind of resistance to marine corrosion reinforcing bar | |
| CN105624571B (en) | A kind of super-thick steel plate and its production technology | |
| CN105642844B (en) | A kind of casting method of 2205 two-phase stainless steel ingot | |
| CN104493119B (en) | A kind of medium high carbon high strength steel homogenizes the production method of strand | |
| CN105695886A (en) | Method for two-step manufacturing of high-nitrogen stainless steel plate through normal-pressure metallurgy | |
| CN105834390A (en) | Method for carrying out vertical centrifugal casting on annular part of centrifugal machine through metal mold | |
| CN101921945A (en) | Liquid iron inoculation process for ductile iron pipes | |
| JP5641431B2 (en) | Spheroidal graphite cast iron pipe and manufacturing method thereof | |
| JP5248549B2 (en) | Heat-resistant steel member and manufacturing method thereof | |
| CN105063462B (en) | A kind of preparation method of polish stick | |
| CN106756610A (en) | A kind of method of 347 stainless steel billet continuous casting | |
| JPH01228603A (en) | Manufacture of two-phase stainless steel seamless tube | |
| JPS626615B2 (en) | ||
| CN113695399B (en) | Rolling method for square billet of bimetal composite large round billet | |
| CN106563780A (en) | Continuous casting method for big round billet of medium-high-carbon medium-high-alloy tool steel | |
| CN104762555A (en) | Processing technology of thin-wall flange plate | |
| JPS5877743A (en) | Ingot making method for alloy steel containing niobium | |
| CN112011747A (en) | High-nitrogen steel and slab continuous casting process thereof | |
| CN103667951B (en) | The special steel and its manufacture method of a kind of interior tough and outer hard | |
| JP6528644B2 (en) | Continuous casting method for steel pipe slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |