CN105861939A - NM360 steel production method - Google Patents
NM360 steel production method Download PDFInfo
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- CN105861939A CN105861939A CN201610208029.8A CN201610208029A CN105861939A CN 105861939 A CN105861939 A CN 105861939A CN 201610208029 A CN201610208029 A CN 201610208029A CN 105861939 A CN105861939 A CN 105861939A
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- rolling
- steel
- reduction
- finish rolling
- roughing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Abstract
The invention provides an NM360 steel production method. The NM360 steel production method comprises the steps that molten iron and scrap steel are subjected to converter steelmaking, ladle refining furnace refining, RH vacuum circulating degassing refining, continuous casting and hot rolling, and NM360 steel is obtained. Hot rolling comprises the steps that a steel blank with the thickness being 150 mm is heated to 1150 DEG C-1250 DEG C; rolling is subjected to two-stage control through rough rolling and finish rolling, rough rolling adopts high-temperature large reduction rolling, and the last three passes of finish rolling adopt a small pass rolling reduction rate; and relaxation is conducted for 20-60 s after finish rolling is completed, and the molten iron and the scrap steel enter an ultra-rapid cooling device, are cooled to 280-350 DEG C with the cooling rate being 40-100 DEG C/s, enter a heat straightening device to be straightened and then are subjected to shearing, detecting and finishing. The energy consumption is reduced, the technological process is shortened, and the alloy adding amount is decreased; and compared with a traditional reheating quench technology, the hardenability of the steel plate which is rolled and subjected to ultra-rapid cooling is improved by 1.4-1.5 times, the toughness proportion of the steel is improved, the social resources are saved, and the production cost is reduced.
Description
Technical field
The invention belongs to Pipeline Steel Plate manufacturing technology field.Particularly relate to a kind of NM360 steel of producing
Method.
Background technology
In the fields such as metallurgy, mine, building materials and military affairs, many workpiece and equipment are fast due to abrasion
Speed lost efficacy, and caused the huge waste of material, the energy. and low-alloy wear-resistant steel is with its high rigidity, high abrasion
The good comprehensive mechanical properties such as property are widely used in various wear working condition.
Traditional anti-wear steel NM360 carries out out-line quenching, tempering process after hot rolling, and energy consumption is big,
Technological process is long, needs to add a large amount of alloy.
Summary of the invention
It is an object of the present invention to provide a kind of method producing NM360 steel, reduce energy consumption, shorten
Technological process, decreases alloy addition, and after rolling, after direct ultra-rapid cooling, the quenching degree ratio of steel plate passes
System reheats quenching technical and increases, and improves the tough proportioning of steel, saves social resources, reduces raw
Produce cost.
For achieving the above object, the technical solution used in the present invention is: a kind of produce NM360 steel
Method, including:
By molten iron and steel scrap through pneumatic steelmaking, ladle refining furnace refine and RH vacuum circulation degassing refine
After carry out continuous casting, obtain NM360 steel after hot rolling；Wherein, the strand of continuous casting chemical composition and
Content is: C is [0.16wt%, 0.20wt%], and Si is [0.2wt%, 0.4wt%], and Mn is
[1.2wt%, 1.8wt%], Mo is [0.10wt%, 0.30wt%], Cr be [0.10wt%,
0.30wt%], Nb is [0.00wt%, 0.04wt%], and Ti is [0.00wt%, 0.02wt%],
P < 0.015wt%, S < 0.010wt%, remaining is Fe and impurity；Wherein, hot rolling technology flow process includes:
By thickness 150mm heating steel billet at [1150 DEG C, 1250 DEG C], then use roughing, finish rolling
Two-stage control rolls, and roughing uses high temperature heavy reduction rolling, and reduction in pass is more than 15mm,
Roughing outlet temperature >=1000 DEG C, final rolling temperature≤920 DEG C, last 3 passages of finish rolling use little passage
Reduction ratio, every time reduction ratio≤10%, finish rolling exit thickness is [9mm, 18mm], finish rolling
Outlet temperature [760 DEG C, 850 DEG C], finish rolling complete after relaxation [20s, 60s], enter supper-fast
Chiller, cooldown rate is [40 DEG C/s, 100 DEG C/s], is cooled to [280 DEG C, 350 DEG C],
Align subsequently into heat rectification machine, then carry out shearing, check, finishing.
The present invention, by rational Alloying Design, selects Mo, Cr, Nb, Ti alloy of trace to enter
Row microalloying, by relaxation ultra-rapid cooling technology controlling and process microstructure after controlled rolling, fully sends out
Wave the hydrodynamics effect of alloy, reduce addition and the usage amount of precious alloy of alloy, and simplify
Carry out out-line quenching, tempering process after traditional abrasion-resistant stee hot rolling, use the method and traditional handicraft
Compare, reduce energy consumption, shorten technological process, decrease alloy addition, super after rolling
Quickly after cooling, the quenching degree of steel plate reheats quenching technical than tradition and increases 1.4～1.5 times, improves
The tough proportioning of steel, saves social resources, reduces production cost.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention include below will be in detail
Describe feature that is bright and that be particularly pointed out in the claims in detail.Description below and accompanying drawing are described in detail
Some illustrative aspects of the present invention.But, what these aspects indicated only can use the present invention's
Some modes in the various modes of principle.Additionally, it is contemplated that include all these aspect and
Their equivalent.
Accompanying drawing explanation
According to the following detailed description carried out referring to the drawings, the above and other purpose of the present invention, feature
Will become apparent from advantage.In the accompanying drawings:
Fig. 1 shows a flow process signal of a kind of method producing NM360 steel that the present invention proposes
Figure.
The most identical label indicates similar or corresponding feature or function.
Detailed description of the invention
Various aspects of the disclosure is described below.It is to be understood that teaching herein can be with multiple
Various form specifically embodies, and any concrete structure disclosed herein, function or both only
It is representational.Based on teaching herein, those skilled in the art are it is to be understood that this paper institute is public
The aspect opened can realize independent of any other side, and two or many in these aspects
Individual aspect can combine in various manners.It is, for example possible to use it is described in this paper any number of
Aspect, it is achieved device or put into practice method.Further, it is possible to use other structure, function or except this
Outside one or more aspects of being illustrated of literary composition or be not one or more aspects described herein
26S Proteasome Structure and Function, it is achieved this device or put into practice this method.Additionally, any side described herein
Face can include at least one element of claim.
Each embodiment of the present invention is described below with reference to accompanying drawings.
Referring first to Fig. 1, a kind of method producing NM360 steel, including step:
S1, by molten iron and steel scrap through pneumatic steelmaking, ladle refining furnace refine and RH vacuum circulation degassing
Refine；
S2, carry out continuous casting, hot rolling after obtain NM360 steel.
Wherein, chemical composition and the content thereof of the strand of continuous casting is: C is [0.16wt%, 0.20wt%],
Si is [0.2wt%, 0.4wt%], and Mn is [1.2wt%, 1.8wt%], Mo be [0.10wt%,
0.30wt%], Cr is [0.10wt%, 0.30wt%], and Nb is [0.00wt%, 0.04wt%],
Ti is [0.00wt%, 0.02wt%], P < 0.015wt%, S < 0.010wt%, remaining be Fe and
Impurity；Wherein, hot rolling technology flow process includes: by thickness 150mm heating steel billet to [1150 DEG C,
1250 DEG C], then use roughing, the rolling of finish rolling two-stage control, roughing uses high temperature heavy reduction
Rolling, reduction in pass be more than 15mm, roughing outlet temperature >=1000 DEG C, final rolling temperature≤920 DEG C,
Last 3 passages of finish rolling use little percentage pass reduction, every time reduction ratio≤10%, finish rolling exit thickness
For [9mm, 18mm], exit temperature at finishing [760 DEG C, 850 DEG C], finish rolling complete after relaxation
[20s, 60s], enters Ultrafast cooling device, and cooldown rate is [40 DEG C/s, 100 DEG C/s],
It is cooled to [280 DEG C, 350 DEG C], aligns subsequently into heat rectification machine, then carry out shearing, check,
Finishing.
The present invention, by rational Alloying Design, selects Mo, Cr, Nb, Ti alloy of trace to enter
Row microalloying, by relaxation ultra-rapid cooling technology controlling and process microstructure after controlled rolling, fully sends out
Wave the hydrodynamics effect of alloy, reduce addition and the usage amount of precious alloy of alloy, and simplify
Carry out out-line quenching, tempering process after traditional abrasion-resistant stee hot rolling, use the method and traditional handicraft
Compare, reduce energy consumption, shorten technological process, decrease alloy addition, super after rolling
Quickly after cooling, the quenching degree of steel plate reheats quenching technical than tradition and increases 1.4～1.5 times, improves
The tough proportioning of steel, saves social resources, reduces production cost.
Below in conjunction with detailed description of the invention, the invention will be further described, not the present invention is protected model
The restriction enclosed.
Embodiment 1
A kind of method producing NM360 steel.Chemical composition and the content thereof of strand are that: C is
0.18wt%, Si be 0.25wt%, Mn be 1.5wt%, Mo be 0.20wt%, Cr be 0.25wt%,
Nb be 0.03wt%, Ti be 0.01wt%, P be that < 0.001wt%, remaining is Fe for 0.01wt%, S
And inevitable impurity.Described hot rolling technology is: by thickness 150mm heating steel billet to
1200 DEG C, using roughing+finish rolling two-stage control rolling, roughing uses high temperature heavy reduction rolling,
Carry out 5 passes altogether, each passes amount be respectively 21mm, 21mm, 21mm, 21mm,
21mm, reduction in pass be more than 15mm, roughing outlet temperature 1100 DEG C, final rolling temperature start for
912 DEG C, last 3 passages of finish rolling use little percentage pass reductions, percentage pass reduction is respectively 3.7%, 2.5%,
1.1%, final thickness is 16mm, exit temperature at finishing 795 DEG C, finish rolling complete after relaxation 30s, enter
Entering Ultrafast cooling device, cooldown rate is 68 DEG C/s, is cooled to 300 DEG C, enters subsequently into heat rectification machine
Row aligning, it is ensured that plate pictograph closes client technologies protocol requirement, and its yield strength is 958MPa, tension
Intensity 1120MPa, A50 elongation percentage 18.5%, surface Brinell hardness 362HBW, under the conditions of-20 DEG C,
Charpy V-arrangement ballistic work is respectively 47J, 52J, 60J, and its performance meets NM360 national standard
GB/T24186-2009 technical conditions.
Embodiment 2
A kind of method producing NM360 steel.Chemical composition and the content thereof of strand are that: C is
0.18wt%, Si be 0.25wt%, Mn be 1.5wt%, Mo be 0.20wt%, Cr be 0.25wt%,
Nb be 0.03wt%, Ti be 0.01wt%, P be that < 0.001wt%, remaining is Fe for 0.01wt%, S
And inevitable impurity.Described hot rolling technology is: by thickness 150mm heating steel billet to
1200 DEG C, using roughing+finish rolling two-stage control rolling, roughing uses high temperature heavy reduction rolling,
Carry out 5 passes altogether, each passes amount be respectively 25mm, 24mm, 20mm, 20mm,
20mm, reduction in pass be more than 15mm, roughing outlet temperature 1095 DEG C, final rolling temperature start for
915 DEG C, last 3 passages of finish rolling use little percentage pass reductions, percentage pass reduction is respectively 3.6%, 2.4%,
1.3%, final thickness is 8mm, exit temperature at finishing 790 DEG C, finish rolling complete after relaxation 35s, enter
Entering Ultrafast cooling device, cooldown rate is 82 DEG C/s, is cooled to 280 DEG C, enters subsequently into heat rectification machine
Row aligning, it is ensured that plate shape meets the requirements, and its yield strength is 976MPa, tensile strength 1186MPa,
A50 elongation percentage 19%, surface Brinell hardness 365HBW, under the conditions of-20 DEG C, Charpy V-arrangement impacts
Merit is respectively 53J, 58J, 66J, and its performance meets NM360 standard GB/T/T24186-2009
Technical conditions.
Embodiment 3
A kind of method producing NM360 steel.Chemical composition and the content thereof of strand are that: C is
0.16wt%, Si be 0.25wt%, Mn be 1.5wt%, Mo be 0.25wt%, Cr be 0.20wt%,
Nb be 0.025wt%, Ti be 0.012wt%, P be that < 0.002wt%, remaining is for 0.012wt%, S
Fe and inevitably impurity.Described hot rolling technology is: by thickness 150mm heating steel billet to
1200 DEG C, using roughing+finish rolling two-stage control rolling, roughing uses high temperature heavy reduction rolling,
Carry out 5 passes altogether, each passes amount be respectively 21mm, 21mm, 21mm, 21mm,
21mm, reduction in pass be more than 15mm, roughing outlet temperature 1100 DEG C, final rolling temperature start for
912 DEG C, last 3 passages of finish rolling use little percentage pass reductions, percentage pass reduction is respectively 3.7%, 2.5%,
1.1%, final thickness is 16mm, exit temperature at finishing 785 DEG C, finish rolling complete after relaxation 36s, enter
Entering Ultrafast cooling device, cooldown rate is 68 DEG C/s, is cooled to 300 DEG C, enters subsequently into heat rectification machine
Row aligning, it is ensured that plate pictograph closes client technologies protocol requirement, and its yield strength is 954MPa, tension
Intensity 1132MPa, A50 elongation percentage 17.5%, surface Brinell hardness 354HBW, under the conditions of-20 DEG C,
Charpy V-arrangement ballistic work is respectively 42J, 48J, 53J, and its performance meets NM360 national standard
GB/T24186-2009 technical conditions.
Embodiment 4
A kind of method producing NM360 steel.Chemical composition and the content thereof of strand are that: C is
0.16wt%, Si be 0.25wt%, Mn be 1.5wt%, Mo be 0.25wt%, Cr be 0.20wt%,
Nb be 0.025wt%, Ti be 0.012wt%, P be that < 0.002wt%, remaining is for 0.012wt%, S
Fe and inevitably impurity.Described hot rolling technology is: by thickness 150mm heating steel billet to
1200 DEG C, using roughing+finish rolling two-stage control rolling, roughing uses high temperature heavy reduction rolling,
Carry out 5 passes altogether, each passes amount be respectively 25mm, 24mm, 20mm, 20mm,
20mm, reduction in pass be more than 15mm, roughing outlet temperature 1085 DEG C, final rolling temperature start for
908 DEG C, last 3 passages of finish rolling use little percentage pass reductions, percentage pass reduction is respectively 3.6%, 2.4%,
1.3%, final thickness is 8mm, exit temperature at finishing 795 DEG C, finish rolling complete after relaxation 33s, enter
Entering Ultrafast cooling device, cooldown rate is 82 DEG C/s, is cooled to 300 DEG C, enters subsequently into heat rectification machine
Row aligning, it is ensured that plate shape meets the requirements, and its yield strength is 972MPa, tensile strength 1193MPa,
A50 elongation percentage 18.5%, surface Brinell hardness 366HBW, under the conditions of-20 DEG C, Charpy V-arrangement rushes
Hitting merit and be respectively 55J, 59J, 68J, its performance meets NM360 standard GB/T/T24186-2009
Technical conditions.
Although content disclosed above shows the exemplary embodiment of the present invention, it should be noted that
On the premise of the scope of the present invention limited without departing substantially from claim, may be many modifications and repair
Change.The function of the claim to a method according to inventive embodiments described herein, step and/or action are not
Need to perform with any particular order.Additionally, although the element of the present invention can describe with individual form or
Requirement, it is also contemplated that multiple, it is odd number unless explicitly limited.
Although each embodiment described according to the present invention above with reference to figure is described, but this
Skilled person should be appreciated that each embodiment being proposed the invention described above, it is also possible to not
Various improvement is made on the basis of departing from present invention.Therefore, protection scope of the present invention should be by
The content of appending claims determines.
Claims (5)
1. the method producing NM360 steel, it is characterised in that include step:
By molten iron and steel scrap through pneumatic steelmaking, ladle refining furnace refine and RH vacuum circulation degassing refine
After carry out continuous casting, obtain NM360 steel after hot rolling；Wherein, the strand of continuous casting chemical composition and
Content is: C is [0.16wt%, 0.20wt%], and Si is [0.2wt%, 0.4wt%], and Mn is
[1.2wt%, 1.8wt%], Mo is [0.10wt%, 0.30wt%], Cr be [0.10wt%,
0.30wt%], Nb is [0.00wt%, 0.04wt%], and Ti is [0.00wt%, 0.02wt%],
P < 0.015wt%, S < 0.010wt%, remaining is Fe and impurity；
Wherein, hot rolling technology flow process includes: by thickness 150mm heating steel billet to [1150 DEG C,
1250 DEG C], then use roughing, the rolling of finish rolling two-stage control, roughing uses high temperature heavy reduction
Rolling, reduction in pass be more than 15mm, roughing outlet temperature >=1000 DEG C, final rolling temperature≤920 DEG C,
Last 3 passages of finish rolling use little percentage pass reduction, every time reduction ratio≤10%, finish rolling exit thickness
For [9mm, 18mm], exit temperature at finishing [760 DEG C, 850 DEG C], finish rolling complete after relaxation
[20s, 60s], enters Ultrafast cooling device, and cooldown rate is [40 DEG C/s, 100 DEG C/s],
It is cooled to [280 DEG C, 350 DEG C], aligns subsequently into heat rectification machine, then carry out shearing, check,
Finishing.
The method of production NM360 steel the most according to claim 1, it is characterised in that
Carry out altogether 5 passage roughing rolling, each passes amount be respectively 21mm, 21mm, 21mm,
21mm, 21mm, reduction in pass is more than 15mm, roughing outlet temperature 1100 DEG C, final rolling temperature
Starting to be 912 DEG C, last 3 passages of finish rolling use little percentage pass reduction, and percentage pass reduction is respectively
3.7%, 2.5%, 1.1%, final thickness is 16mm, and exit temperature at finishing 795 DEG C, finish rolling completes
Rear relaxation 30s, enters Ultrafast cooling device, and cooldown rate is 68 DEG C/s, is cooled to 300 DEG C.
The method of production NM360 steel the most according to claim 1, it is characterised in that
Carry out altogether 5 passage roughing rolling, each passes amount be respectively 25mm, 24mm, 20mm,
20mm, 20mm, reduction in pass is more than 15mm, roughing outlet temperature 1095 DEG C, final rolling temperature
Starting to be 915 DEG C, last 3 passages of finish rolling use little percentage pass reduction, and percentage pass reduction is respectively
3.6%, 2.4%, 1.3%, final thickness is 8mm, and exit temperature at finishing 790 DEG C, finish rolling completes
Rear relaxation 35s, enters Ultrafast cooling device, and cooldown rate is 82 DEG C/s, is cooled to 280 DEG C.
The method of production NM360 steel the most according to claim 1, it is characterised in that
Carry out altogether 5 passage roughing rolling, each passes amount be respectively 21mm, 21mm, 21mm,
21mm, 21mm, reduction in pass is more than 15mm, roughing outlet temperature 1100 DEG C, final rolling temperature
Starting to be 912 DEG C, last 3 passages of finish rolling use little percentage pass reduction, and percentage pass reduction is respectively
3.7%, 2.5%, 1.1%, final thickness is 16mm, and exit temperature at finishing 785 DEG C, finish rolling completes
Rear relaxation 36s, enters Ultrafast cooling device, and cooldown rate is 68 DEG C/s, is cooled to 300 DEG C.
The method of production NM360 steel the most according to claim 1, it is characterised in that
Carry out altogether 5 passage roughing rolling, each passes amount be respectively 25mm, 24mm, 20mm,
20mm, 20mm, reduction in pass is more than 15mm, roughing outlet temperature 1085 DEG C, final rolling temperature
Starting to be 908 DEG C, last 3 passages of finish rolling use little percentage pass reduction, and percentage pass reduction is respectively
3.6%, 2.4%, 1.3%, final thickness is 8mm, and exit temperature at finishing 795 DEG C, finish rolling completes
Rear relaxation 33s, enters Ultrafast cooling device, and cooldown rate is 82 DEG C/s, is cooled to 300 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610208029.8A CN105861939B (en) | 2016-04-01 | 2016-04-01 | A kind of method for producing NM360 steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610208029.8A CN105861939B (en) | 2016-04-01 | 2016-04-01 | A kind of method for producing NM360 steel |
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| CN105861939B CN105861939B (en) | 2017-12-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929634A (en) * | 2017-03-31 | 2017-07-07 | 华南理工大学 | The method of continuous casting and rolling technique of sheet bar production Thin Specs abrasion-resistant stee NM450 |
| CN107099730A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of manufacture method of the high Ti anti-wear steel NM360s of Thin Specs |
| CN107099727A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of ultrafast cold press quenching production Thin Specs abrasion-resistant stee NM400 method |
| CN107099731A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of method that press quenching produces the high Ti anti-wear steel NM360s of Thin Specs |
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| CN102828117A (en) * | 2012-09-03 | 2012-12-19 | 南京钢铁股份有限公司 | Low-yield ratio high-intensity hot-rolled double-phase steel plate and production method thereof |
| CN104818435A (en) * | 2015-03-13 | 2015-08-05 | 北京科技大学 | Preparation method for NM400 grade wear-resistant steel plate with corrosion resistance |
| CN104962834A (en) * | 2015-06-14 | 2015-10-07 | 秦皇岛首秦金属材料有限公司 | High-toughness stable-brinell-hardness extra-thick abrasion-resistant steel and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102828117A (en) * | 2012-09-03 | 2012-12-19 | 南京钢铁股份有限公司 | Low-yield ratio high-intensity hot-rolled double-phase steel plate and production method thereof |
| CN104818435A (en) * | 2015-03-13 | 2015-08-05 | 北京科技大学 | Preparation method for NM400 grade wear-resistant steel plate with corrosion resistance |
| CN104962834A (en) * | 2015-06-14 | 2015-10-07 | 秦皇岛首秦金属材料有限公司 | High-toughness stable-brinell-hardness extra-thick abrasion-resistant steel and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929634A (en) * | 2017-03-31 | 2017-07-07 | 华南理工大学 | The method of continuous casting and rolling technique of sheet bar production Thin Specs abrasion-resistant stee NM450 |
| CN107099730A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of manufacture method of the high Ti anti-wear steel NM360s of Thin Specs |
| CN107099727A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of ultrafast cold press quenching production Thin Specs abrasion-resistant stee NM400 method |
| CN107099731A (en) * | 2017-03-31 | 2017-08-29 | 华南理工大学 | A kind of method that press quenching produces the high Ti anti-wear steel NM360s of Thin Specs |
| CN107099727B (en) * | 2017-03-31 | 2019-01-18 | 华南理工大学 | A kind of method of ultrafast cold press quenching production thin gauge abrasion-resistant stee NM400 |
| CN106929634B (en) * | 2017-03-31 | 2019-08-20 | 华南理工大学 | The method of continuous casting and rolling technique of sheet bar production thin gauge abrasion-resistant stee |
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| Publication number | Publication date |
|---|---|
| CN105861939B (en) | 2017-12-19 |
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