CN108265158A - A kind of steel rider modifier treatment technique - Google Patents
A kind of steel rider modifier treatment technique Download PDFInfo
- Publication number
- CN108265158A CN108265158A CN201810227643.8A CN201810227643A CN108265158A CN 108265158 A CN108265158 A CN 108265158A CN 201810227643 A CN201810227643 A CN 201810227643A CN 108265158 A CN108265158 A CN 108265158A
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- CN
- China
- Prior art keywords
- yttrium
- rare earth
- heavy rare
- modifier treatment
- steel rider
- 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
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
- C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a kind of steel rider modifier treatment techniques, specific modifier treatment is, in melting liquid metal, according to the yttrium-base heavy rare earth alterant of 23 kilograms of proportioning per ton in iron liquid, it is sufficiently mixed uniformly, utilize yttrium-base heavy rare earth alterant removal harmful element P, S, H, O, crystal grain thinning improves microscopic structure.The present invention improves the intensity of roll material, electuary toughness, reduce fatigue wear, extend roll working life, and promote roll material surface and form and keep uniform, continuous and smooth oxidation film, so as to improve wearability and corrosion resistance, holistic approach can reduce expensive molybdenum, the addition of nickel alloy element and improvement alkalization heat treatment process, roll and still maintain good comprehensive performance.
Description
Technical field
The present invention relates to metallurgical processing technical field, especially a kind of steel rider modifier treatment technique.
Background technology
The kind and manufacturing process of steel roll are continued to develop with the progress of metallurgical technology and the differentiation of steel rolling equipment.Middle generation
Use intensity low gray cast iron roll when discipline rolls soft non-ferrous metal.The mid-eighteenth century Britain has grasped the cold of rolled plate
The production technology of hard cast iron roll.The steel ingot of the advances calls rolling more large-tonnage of the second half in 19th century Europe steel-smelting technology, nothing
By being that the intensity of gray cast iron or chilled cast iron roll has been unable to meet requirement.Phosphorus content is 0.4%~0.6% normal steel casting roll
It is corresponding to be born.The appearance of heavy metal-forming equipment more makes the obdurability of the forging roller of this ingredient be further enhanced.20 generation
The introducing for using and being heat-treated of discipline initial stage alloying element significantly improve cast steel and forged steel rolls for hot rolling and cold roll wearability and
Obdurability.The surface quality of stocking is improved in the grain roll of hot rolled strip after addition molybdenum.Douche composite casting is apparent
It improves the core strength of casting roll, during roll cast iron melting, can be often dissolved in iron liquid because of harmful element P, S, H, O, and
Gather to form non-metallic inclusion, disperse is impacted to the degree of purity of iron liquid, after pouring into roll cavity, solidified in centre
Be immobilized in region of interest in the process, directly affect the inherent quality and service life of roll, for these problems, herein I
Propose a kind of steel rider modifier treatment technique.
Invention content
The present invention provides a kind of steel rider modifier treatment technique for the technical deficiency of existing Roller Machining.
The present invention is solves above-mentioned technical deficiency, using modified technical solution, a kind of steel rider modifier treatment technique, specifically
Modifier treatment is, in melting liquid metal, according to the yttrium-base heavy rare earth alterant of 2-3 kilograms of proportioning per ton in iron liquid, fills
Divide and be uniformly mixed, gadolinium based heavy rare earths alterant is utilized to remove harmful element P, S, H, O, crystal grain thinning improves microscopic structure.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is formed big in molten metal is added in
The non-spontaneous nucleation of dispersion is measured, the non-spontaneous nucleation can promote harmful element, form tiny crystal grain.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is set as that harmful element P, S can be reduced,
The content of H, O and the segregation of non-metallic inclusion.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is set as that non-metallic inclusion can be improved
Form, size and distribution.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant be set as can reducing casting stress source and
Formation of crack.
As present invention further optimization mode, the crystal grain can eliminate column crystal coarse under as cast condition and tree
Dendrite can strengthen crystal boundary.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is set as rich in various active element,
The active element can play solution strengthening effect, improve roll wearability.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is set as that microscopic crystals tissue can be improved
Formation and distribution, promote dictyonalia shape carbide to particulate convert, be evenly distributed, reduce carbide matrix is isolated,
Reduce stress raiser.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant, which is set as that roller surface can be promoted, to be formed
Smooth oxidation film.
As present invention further optimization mode, the yttrium-base heavy rare earth alterant is set as RE5-60%, Si5-50%,
Ti2-15%, B0-10%, Mg0-10%, Al0-20%, Nb0-15%, V0-15%, Ca0.5-15%, Ba0-15%, Y are RE weight
40-99.9%, La+Ce+Pr+Nd+Sm+Eu+Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu are the 0-60% of RE weight, and surplus is iron.
The present invention improves the intensity of roll material, and electuary toughness reduces fatigue wear, extends roll working life, and
And promote roll material surface and form and keep uniform, continuous and smooth oxidation film, so as to improve wearability and corrosion-resistant
Property, holistic approach can reduce expensive molybdenum, nickel alloy element addition and improve alkalization heat treatment process, roll is still
Keep good comprehensive performance.
Specific embodiment
Below in conjunction in the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution：A kind of steel rider modifier treatment technique, specific modifier treatment are, in melting liquid
During metal, according to the yttrium-base heavy rare earth alterant of 2-3 kilograms of proportioning per ton in iron liquid, it is sufficiently mixed uniformly, utilizes yttrium base weight
Rare earth alterative removes harmful element P, S, H, O, and crystal grain thinning improves microscopic structure.
The yttrium-base heavy rare earth alterant forms the non-spontaneous nucleation that largely disperses in molten metal is added in, it is described it is non-from
Fat crystal nucleus can promote harmful element, form tiny crystal grain.
The yttrium-base heavy rare earth alterant be set as to reduce harmful element P, S, H, O content and non-metallic inclusion it is inclined
It is poly-.
The yttrium-base heavy rare earth alterant is set as to improve the form of non-metallic inclusion, size and distribution.
The yttrium-base heavy rare earth alterant is set as that casting stress source and formation of crack can be reduced.
The crystal grain can eliminate column crystal and dendrite coarse under as cast condition, can strengthen crystal boundary.
The yttrium-base heavy rare earth alterant is set as rich in various active element, and the active element can play solution strengthening work
With raising roll wearability.
The yttrium-base heavy rare earth alterant is set as to improve the formation and distribution of microscopic crystals tissue, promotes dictyonalia shape
Carbide is converted to particulate, is evenly distributed, and reduces carbide and matrix is isolated, reduce stress raiser.
The yttrium-base heavy rare earth alterant, which is set as that roller surface can be promoted, forms smooth oxidation film.
The yttrium-base heavy rare earth alterant is set as RE5-60%, Si5-50%, Ti2-15%, B0-10%, Mg0-10%, Al0-
20%, Nb0-15%, V0-15%, Ca0.5-15%, Ba0-15%, Y are 40-99.9%, La+Ce+Pr+Nd+Sm+Eu+ of RE weight
Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu is the 0-60% of RE weight, and surplus is iron.
To sum up, the present invention improves the intensity of roll material, and electuary toughness reduces fatigue wear, extends the work roll cooling longevity
Life, and promotes roll material surface and forms and keeps uniform, continuous and smooth oxidation film, so as to improve wearability and resistance to
Corrosivity, holistic approach can reduce expensive molybdenum, the addition of nickel alloy element and improvement alkalization heat treatment process, roll
Still maintain good comprehensive performance.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of steel rider modifier treatment technique, it is characterised in that：Specific modifier treatment is, in melting liquid metal, in iron liquid
According to 2-3 kilograms of yttrium-base heavy rare earth alterant of proportioning per ton, be sufficiently mixed uniformly, utilize the removal of yttrium-base heavy rare earth alterant
Harmful element P, S, H, O, crystal grain thinning improve microscopic structure.
A kind of 2. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
In molten metal is added in, the non-spontaneous nucleation largely disperseed is formed, the non-spontaneous nucleation can promote harmful element, be formed thin
Small crystal grain.
A kind of 3. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
It is set as that the content of harmful element P, S, H, O and the segregation of non-metallic inclusion can be reduced.
A kind of 4. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
It is set as to improve the form of non-metallic inclusion, size and distribution.
A kind of 5. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
It is set as that casting stress source and formation of crack can be reduced.
6. a kind of steel rider modifier treatment technique according to claim 2, which is characterized in that the crystal grain can be eliminated
Coarse column crystal and dendrite, can strengthen crystal boundary under as cast condition.
A kind of 7. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
It is set as rich in various active element, the active element can play solution strengthening effect, improve roll wearability.
A kind of 8. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
It is set as to improve the formation and distribution of microscopic crystals tissue, dictyonalia shape carbide is promoted to be converted to particulate, is evenly distributed, subtracts
Few carbide isolates matrix, reduces stress raiser.
A kind of 9. steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth alterant
Roller surface can be promoted by, which being set as, forms smooth oxidation film.
10. a kind of steel rider modifier treatment technique according to claim 1, which is characterized in that the yttrium-base heavy rare earth goes bad
Agent is set as RE5-60%, Si5-50%, Ti2-15%, B0-10%, Mg0-10%, Al0-20%, Nb0-15%, V0-15%, Ca0.5-
15%, Ba0-15%, Y are that 40-99.9%, La+Ce+Pr+Nd+Sm+Eu+Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu of RE weight are
The 0-60% of RE weight, surplus are iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227643.8A CN108265158A (en) | 2018-03-20 | 2018-03-20 | A kind of steel rider modifier treatment technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227643.8A CN108265158A (en) | 2018-03-20 | 2018-03-20 | A kind of steel rider modifier treatment technique |
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| Publication Number | Publication Date |
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| CN108265158A true CN108265158A (en) | 2018-07-10 |
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| CN201810227643.8A Pending CN108265158A (en) | 2018-03-20 | 2018-03-20 | A kind of steel rider modifier treatment technique |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718822A (en) * | 2005-08-09 | 2006-01-11 | 赣州龙钇稀土材料有限公司 | Yttrium base heavy rare earth wear resistant alloy cast iron alterant |
| CN101537428A (en) * | 2009-04-28 | 2009-09-23 | 江苏环立板带轧辊有限公司 | Semi-steel roll and preparation method thereof |
| CN102766824A (en) * | 2012-07-04 | 2012-11-07 | 北京环渤湾高速钢轧辊有限公司 | Abrasion-resistant high-speed-steel roller ring and preparation method thereof |
| CN104191173A (en) * | 2014-08-19 | 2014-12-10 | 常州凯达重工科技有限公司 | Roller producing technology for high-end rail rolling mill |
| CN105463308A (en) * | 2015-11-26 | 2016-04-06 | 常州凯达重工科技有限公司 | Centrifugal metal roll ring and manufacturing process thereof |
-
2018
- 2018-03-20 CN CN201810227643.8A patent/CN108265158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718822A (en) * | 2005-08-09 | 2006-01-11 | 赣州龙钇稀土材料有限公司 | Yttrium base heavy rare earth wear resistant alloy cast iron alterant |
| CN101537428A (en) * | 2009-04-28 | 2009-09-23 | 江苏环立板带轧辊有限公司 | Semi-steel roll and preparation method thereof |
| CN102766824A (en) * | 2012-07-04 | 2012-11-07 | 北京环渤湾高速钢轧辊有限公司 | Abrasion-resistant high-speed-steel roller ring and preparation method thereof |
| CN104191173A (en) * | 2014-08-19 | 2014-12-10 | 常州凯达重工科技有限公司 | Roller producing technology for high-end rail rolling mill |
| CN105463308A (en) * | 2015-11-26 | 2016-04-06 | 常州凯达重工科技有限公司 | Centrifugal metal roll ring and manufacturing process thereof |
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Application publication date: 20180710 |