CN108546880A - Steel BG22SiMnNi2CrMoA and preparation method thereof - Google Patents
Steel BG22SiMnNi2CrMoA and preparation method thereof Download PDFInfo
- Publication number
- CN108546880A CN108546880A CN201810461564.3A CN201810461564A CN108546880A CN 108546880 A CN108546880 A CN 108546880A CN 201810461564 A CN201810461564 A CN 201810461564A CN 108546880 A CN108546880 A CN 108546880A
- Authority
- CN
- China
- Prior art keywords
- steel
- slag
- preparation
- annealing
- electric furnace
- 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
Classifications
-
- 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
- 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
- C21C7/10—Handling in a vacuum
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses steel BG22SiMnNi2CrMoA and preparation method thereof, wherein the steel BG22SiMnNi2CrMoA, by weight percentage, including following component：C：0.19~0.22%, Si:1.35~1.65%, Mn:1.25~1.45%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.25~0.35%, Ni:1.70~1.90%, Mo:0.35~0.40%, Cu：≤ 0.15%, surplus is iron and inevitable impurity.Steel BG22SiMnNi2CrMoA homogeneity of ingredients is good, and degree of segregation is low, and preparation method solves existing production steel for rock drilling bits and mostly uses molding or electroslag remelting production greatly, and lumber recovery is low, of high cost, and yield is small, the slow problem of rhythm of production.
Description
Technical field
The present invention relates to field of steel preparation, specifically provide steel BG22SiMnNi2CrMoA and preparation method thereof.
Background technology
With the rapid industrial development in our country, domestic every profession and trade is continuous to the demand of mine resources product and electric power energy
Increase, it is higher and higher to steel, drilling tool quality requirement.Compared with international advanced rock-drill steel, the steel grades of China's steel design
It is essentially identical, but manufactured drilling tool product service life and mass difference are larger, cannot fully meet production needs, existing pricker
There are the following problems for the preparation method of steel：
(1) electric furnace continuous casting smelting rhythm is fast, and hot metal ratio is small, and steel scrap alloy content is high；
(2) alloy content of BG22SiMnNi2CrMoA steel grades is high, and Si, Mn, Cr, Ni, Mo, V Composition Control are difficult；
(3) casting process easy tos produce the defects of alloying component is segregated, is loose；
(4) the high heating process of alloy content is not easy to grill thoroughly；
(5) the high operation of rolling of alloy content is larger to milling train drag；
(6) steel need to anneal, and burn steel temperature, time bad control.
Invention content
In consideration of it, the present invention provides steel BG22SiMnNi2CrMoA and preparation method thereof, to solve the above problems.
One aspect of the present invention provides a kind of steel BG22SiMnNi2CrMoA, which is characterized in that by weight percentage, packet
Include following component：C：0.19~0.22%, Si:1.35~1.65%, Mn:1.25~1.45%, P：≤ 0.012%, S：≤
0.010%, Cr：0.25~0.35%, Ni:1.70~1.90%, Mo:0.35~0.40%, Cu：≤ 0.15%, surplus is iron
With inevitable impurity.
It is preferred that the steel BG22SiMnNi2CrMoA, by weight percentage, including following component： C：0.20%, Si:
1.50%, Mn:1.35%, P：≤ 0.010%, S：≤ 0.008%, Cr：0.30%, Ni:1.80%, Mo:0.37%, Cu：≤
0.10%, surplus is iron and inevitable impurity.
The present invention also provides a kind of preparation methods of steel BG22SiMnNi2CrMoA：It is blast-melted to pass through molten iron successively
Pretreatment → electric furnace smelting → refining furnace LF → vacuum outgas VD → middle billet continuous casting 235mm × 265mm continuous casting billets → step-by-step movement
Stove heat → high-pressure water descaling → roughing mill rolling → Continuous mill train → slow cooling → annealing → finishing → flaw detection → inspection is heated, is obtained
To steel,
Wherein, electric furnace smelting uses 50t electric furnace smeltings, carbon to reach tapping deoxidization alloying after target content requires；
Refining furnace LF operates for white slag, under conditions of ensureing slag mobility, in control basicity of slag (CaO/SiO2) and slag
Oxygen gesture FeO+MnO≤1%, constantly detect molten steel, be finely adjusted alloy, ensure molten steel composition reach standard requirement；
Vacuum outgas VD：Ensure degasifying effect and promotes inclusion floating, vacuum 25min or more, composition adjustment to satisfaction
Calcium treatment is carried out after internally controlling requirement, so that the field trash in steel is further floated into slag, is improved Molten Steel Cleanliness；
Middle billet continuous casting：Ladle is sealed, using cinder inclusion in big covering agent, tundish covering flux, high alkalinity, in tundish
Argon gas protective casting, M-EMS, adjustment end electromagnetic agitation current strength and secondary coolingwater, smashes column crystal, protects
The maximization for demonstrate,proving equiax crystal, to improve equiaxed zone ratio；
Annealing：Steel are heated to 670 ± 10 DEG C with the constant heating rate of 65~75 DEG C/h, keep the temperature 3h or more, then go out
Furnace cooling is but.
It is preferred that annealing：Steel are heated to 670 DEG C with the constant heating rate of 70 DEG C/h, keep the temperature 3h or more, then go out furnace cooling
But.
Beneficial effects of the present invention are as follows：
1, steel for rock drilling bits is produced using square billet (235mm × 265mm) flow in 50t electric furnaces+LF+VD+
BG22SiMnNi2CrMoA, realizes the continuous casting of sequence casting, and ton steel cost is reduced than continuous casting or electroslag remelting production
1000 yuan or more, realize the breakthrough of electric furnace continuous casting flow batch production steel for rock drilling bits；
2, it solves electric furnace fast pace and smelts high-alloy steel, improve 80% or more hot metal ratio, effectively control what steel scrap was introduced
Other harmful elements；
3, refining process realizes the equal control of Si, Mn, Cr, Ni, Mo, V ingredient, VD Fruit storages, Neng Gouchong
Dividing reduces the gas contents such as [O], [H] in molten steel, and Calcium treatment ensures that field trash fully floats, ensure that Molten Steel Cleanliness；
4, continuous casting ensure that strand using means such as M-EMS, end electromagnetic agitation, control secondary cooling water flows
Internal soundness uniformity improves equiaxed zone ratio；
5, heating process ensures that strand is grilled thoroughly, and the operation of rolling carries out temperature-controlled rolling, reduces shadow of the milling train to steel drag
It rings, ensures the uniformity of steel tissue；
6, ensure homogeneity of steel structure after rational annealing process, ensure that steel product stress is small, hardness is low, meets standard and wants
It asks.
Specific implementation mode
The present invention is further explained below in conjunction with specific embodiment, but the not limitation present invention.
Embodiment 1
Steel BG22SiMnNi2CrMoA, by weight percentage, including following component：C：0.19%, Si:1.65%, Mn:
1.25%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.25%, Ni:1.90%, Mo:0.35%, Cu：≤ 0.15%, it is remaining
Amount is iron and inevitable impurity.
The preparation method of steel BG22SiMnNi2CrMoA is as follows：
The blast-melted molten iron pretreatment → electric furnace smelting → refining furnace LF → vacuum outgas VD → middle square billet that passes through successively connects
Casting 235mm × 265mm continuous casting billets → stepped heating stove heat → high-pressure water descaling → roughing mill rolling → Continuous mill train → slow
Cold → annealing → finishing → flaw detection → inspection, obtains steel,
Wherein, electric furnace smelting uses 50t electric furnace smeltings, carbon to reach tapping deoxidization alloy after target content requires 0.19%
Change；
Refining furnace LF operates for white slag, under conditions of ensureing slag mobility, in control basicity of slag (CaO/SiO2) and slag
Oxygen gesture FeO+MnO≤1%, constantly detect molten steel, be finely adjusted alloy, ensure molten steel composition reach standard requirement：C：
0.19%, Si:1.65%, Mn:1.25%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.25%, Ni:1.90%, Mo:
0.35%, Cu：≤ 0.15%；
Vacuum outgas VD：Ensure degasifying effect and promotes inclusion floating, vacuum 25min or more, composition adjustment to satisfaction
Internally controlling requirement (C：0.19%, Si:1.65%, Mn:1.25%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.25%, Ni:
1.90%, Mo:0.35%, Cu：≤ 0.15%) Calcium treatment is carried out afterwards, so that the field trash in steel is further floated into slag, is carried
High Molten Steel Cleanliness；
Middle billet continuous casting：Ladle is sealed, using cinder inclusion in big covering agent, tundish covering flux, high alkalinity, in tundish
Argon gas protective casting, M-EMS, adjustment end electromagnetic agitation current strength and secondary coolingwater, smashes column crystal, protects
The maximization for demonstrate,proving equiax crystal, to improve equiaxed zone ratio；
Annealing：Steel are heated to 680 DEG C with the constant heating rate of 65 DEG C/h, keep the temperature 4h, cooling of then coming out of the stove.
Embodiment 2
Steel BG22SiMnNi2CrMoA, by weight percentage, including following component：C：0.22%, Si:1.35%,
Mn:1.45%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.35%, Ni:1.70%, Mo:0.40%, Cu：≤ 0.15%,
Surplus is iron and inevitable impurity.
The preparation method of steel BG22SiMnNi2CrMoA is as follows：
The blast-melted molten iron pretreatment → electric furnace smelting → refining furnace LF → vacuum outgas VD → middle square billet that passes through successively connects
Casting 235mm × 265mm continuous casting billets → stepped heating stove heat → high-pressure water descaling → roughing mill rolling → Continuous mill train → slow
Cold → annealing → finishing → flaw detection → inspection, obtains steel,
Wherein, electric furnace smelting uses 50t electric furnace smeltings, carbon to reach tapping deoxidization alloy after target content requires 0.22%
Change；
Refining furnace LF operates for white slag, under conditions of ensureing slag mobility, in control basicity of slag (CaO/SiO2) and slag
Oxygen gesture FeO+MnO≤1%, constantly detect molten steel, be finely adjusted alloy, ensure molten steel composition reach standard requirement：C：
0.22%, Si:1.35%, Mn:1.45%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.35%, Ni:1.70%, Mo:
0.40%, Cu：≤ 0.15%；
Vacuum outgas VD：Ensure degasifying effect and promotes inclusion floating, vacuum 25min or more, composition adjustment to satisfaction
Internally controlling requirement (C：0.22%, Si:1.35%, Mn:1.45%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.35%, Ni:
1.70%, Mo:0.40%, Cu：≤ 0.15%) Calcium treatment is carried out afterwards, so that the field trash in steel is further floated into slag, is carried
High Molten Steel Cleanliness；
Middle billet continuous casting：Ladle is sealed, using cinder inclusion in big covering agent, tundish covering flux, high alkalinity, in tundish
Argon gas protective casting, M-EMS, adjustment end electromagnetic agitation current strength and secondary coolingwater, smashes column crystal, protects
The maximization for demonstrate,proving equiax crystal, to improve equiaxed zone ratio；
Annealing：Steel are heated to 660 DEG C with the constant heating rate of 75 DEG C/h, keep the temperature 5h, cooling of then coming out of the stove.
Embodiment 3
Steel BG22SiMnNi2CrMoA, by weight percentage, including following component：C：0.20%, Si:1.50%,
Mn:1.35%, P：≤ 0.010%, S：≤ 0.008%, Cr：0.30%, Ni:1.80%, Mo:0.37%, Cu：≤ 0.10%,
Surplus is iron and inevitable impurity.
The preparation method of steel BG22SiMnNi2CrMoA is as follows：
The blast-melted molten iron pretreatment → electric furnace smelting → refining furnace LF → vacuum outgas VD → middle square billet that passes through successively connects
Casting 235mm × 265mm continuous casting billets → stepped heating stove heat → high-pressure water descaling → roughing mill rolling → Continuous mill train → slow
Cold → annealing → finishing → flaw detection → inspection, obtains steel,
Wherein, electric furnace smelting uses 50t electric furnace smeltings, carbon to reach tapping deoxidization alloy after target content requires 0.20%
Change；
Refining furnace LF operates for white slag, under conditions of ensureing slag mobility, in control basicity of slag (CaO/SiO2) and slag
Oxygen gesture FeO+MnO≤1%, constantly detect molten steel, be finely adjusted alloy, ensure molten steel composition reach standard requirement：C：
0.20%, Si:1.50%, Mn:1.35%, P：≤ 0.010%, S：≤ 0.008%, Cr：0.30%, Ni:1.80%, Mo:
0.37%, Cu：≤ 0.10%；
Vacuum outgas VD：Ensure degasifying effect and promotes inclusion floating, vacuum 25min or more, composition adjustment to satisfaction
Internally controlling requirement (C：0.20%, Si:1.50%, Mn:1.35%, P：≤ 0.010%, S：≤ 0.008%, Cr：0.30%, Ni:
1.80%, Mo:0.37%, Cu：≤ 0.10%) Calcium treatment is carried out afterwards, so that the field trash in steel is further floated into slag, is carried
High Molten Steel Cleanliness；
Middle billet continuous casting：Ladle is sealed, using cinder inclusion in big covering agent, tundish covering flux, high alkalinity, in tundish
Argon gas protective casting, M-EMS, adjustment end electromagnetic agitation current strength and secondary coolingwater, smashes column crystal, protects
The maximization for demonstrate,proving equiax crystal, to improve equiaxed zone ratio；
Annealing：Steel are heated to 670 DEG C with the constant heating rate of 70 DEG C/h, keep the temperature 5h, cooling of then coming out of the stove.
Steel obtained in 100 stove embodiments 1 to embodiment 3 are respectively taken to test, the stable quality of steel meets user
Requirement.
Claims (4)
1. steel BG22SiMnNi2CrMoA, which is characterized in that by weight percentage, including following component：C：0.19~
0.22%, Si:1.35~1.65%, Mn:1.25~1.45%, P：≤ 0.012%, S：≤ 0.010%, Cr：0.25~
0.35%, Ni:1.70~1.90%, Mo:0.35~0.40%, Cu：≤ 0.15%, surplus is iron and inevitable impurity.
2. steel BG22SiMnNi2CrMoA described in accordance with the claim 1, which is characterized in that by weight percentage, including such as
Lower component：C：0.20%, Si:1.50%, Mn:1.35%, P：≤ 0.010%, S：≤ 0.008%, Cr：0.30%, Ni:
1.80%, Mo:0.37%, Cu：≤ 0.10%, surplus is iron and inevitable impurity.
3. the preparation method of steel BG22SiMnNi2CrMoA as claimed in claim 1 or 2, it is characterised in that：It is blast-melted according to
It is secondary to pass through molten iron pretreatment → electric furnace smelting → refining furnace LF → vacuum outgas VD → middle billet continuous casting 235mm × 265mm continuous castings
Base → stepped heating stove heat → high-pressure water descaling → roughing mill rolling → Continuous mill train → slow cooling → annealing → finishing → spy
Wound → inspection, obtains steel,
Wherein, electric furnace smelting uses 50t electric furnace smeltings, carbon to reach tapping deoxidization alloying after target content requires；
Refining furnace LF operates for white slag, under conditions of ensureing slag mobility, the oxygen in control basicity of slag (CaO/SiO2) and slag
Gesture FeO+MnO≤1%, constantly detects molten steel, is finely adjusted alloy, ensures that molten steel composition reaches standard requirement；
Vacuum outgas VD：Ensure degasifying effect and promote inclusion floating, vacuum 25min or more, composition adjustment is to meeting internal control
Calcium treatment is carried out after it is required that, so that the field trash in steel is further floated into slag, is improved Molten Steel Cleanliness；
Middle billet continuous casting：Ladle is sealed, using cinder inclusion in big covering agent, tundish covering flux, high alkalinity, argon gas in tundish
Protective casting, M-EMS, adjustment end electromagnetic agitation current strength and secondary coolingwater, smashes column crystal, ensure etc.
The maximization of axialite, to improve equiaxed zone ratio；
Annealing：Steel are heated to 670 ± 10 DEG C with the constant heating rate of 65~75 DEG C/h, keep the temperature 3h or more, then go out furnace cooling
But.
4. the preparation method of steel BG22SiMnNi2CrMoA described in accordance with the claim 3, it is characterised in that：Annealing：Steel
670 DEG C are heated to the constant heating rate of 70 DEG C/h, keeps the temperature 3h or more, cooling of then coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461564.3A CN108546880A (en) | 2018-05-15 | 2018-05-15 | Steel BG22SiMnNi2CrMoA and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461564.3A CN108546880A (en) | 2018-05-15 | 2018-05-15 | Steel BG22SiMnNi2CrMoA and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108546880A true CN108546880A (en) | 2018-09-18 |
Family
ID=63494985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810461564.3A Pending CN108546880A (en) | 2018-05-15 | 2018-05-15 | Steel BG22SiMnNi2CrMoA and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108546880A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852881A (en) * | 2019-02-21 | 2019-06-07 | 本钢板材股份有限公司 | A kind of 45CrNiMoVA drilling tool steel and its production method |
| CN110551880A (en) * | 2019-10-24 | 2019-12-10 | 成都先进金属材料产业技术研究院有限公司 | softening heat treatment process for small-size 22Si2MnCrNi2MoA steel rolled material |
| CN110904388A (en) * | 2019-12-30 | 2020-03-24 | 本钢板材股份有限公司 | Excavator crawler belt steel BG45MnCrB and preparation method thereof |
| CN110964984A (en) * | 2019-12-30 | 2020-04-07 | 本钢板材股份有限公司 | Steel SAE4160M for middle and large automobile shaft sleeve and production process thereof |
| CN111004962A (en) * | 2019-12-30 | 2020-04-14 | 本钢板材股份有限公司 | Steel BG80MnCr for steel balls of ball mill and preparation method thereof |
| CN111961974A (en) * | 2020-08-20 | 2020-11-20 | 本钢板材股份有限公司 | Preparation method of drill rod tail shaft of tapping machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074427A (en) * | 2009-09-29 | 2011-04-14 | Daido Steel Co Ltd | Hollow drill steel rod |
| CN102373380A (en) * | 2011-10-31 | 2012-03-14 | 铜陵狮达矿山机械有限公司 | High-intensity drilling tool steel and preparation method thereof |
| JP2012172344A (en) * | 2011-02-18 | 2012-09-10 | Mitsubishi Materials Corp | Drilling hollow steel rod and method of manufacturing the same |
| CN103627971A (en) * | 2013-12-17 | 2014-03-12 | 西宁特殊钢股份有限公司 | Alloy structural steel for large-specification soldering tools and smelting method thereof |
| CN106544594A (en) * | 2016-10-28 | 2017-03-29 | 山东钢铁股份有限公司 | Carbon vanadium steel and preparation method thereof in a kind of drill steel |
| CN106801117A (en) * | 2017-01-23 | 2017-06-06 | 扬州大学 | A kind of high-strength tenacity transmission line hardware and its Technology for Heating Processing |
-
2018
- 2018-05-15 CN CN201810461564.3A patent/CN108546880A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074427A (en) * | 2009-09-29 | 2011-04-14 | Daido Steel Co Ltd | Hollow drill steel rod |
| JP2012172344A (en) * | 2011-02-18 | 2012-09-10 | Mitsubishi Materials Corp | Drilling hollow steel rod and method of manufacturing the same |
| CN102373380A (en) * | 2011-10-31 | 2012-03-14 | 铜陵狮达矿山机械有限公司 | High-intensity drilling tool steel and preparation method thereof |
| CN103627971A (en) * | 2013-12-17 | 2014-03-12 | 西宁特殊钢股份有限公司 | Alloy structural steel for large-specification soldering tools and smelting method thereof |
| CN106544594A (en) * | 2016-10-28 | 2017-03-29 | 山东钢铁股份有限公司 | Carbon vanadium steel and preparation method thereof in a kind of drill steel |
| CN106801117A (en) * | 2017-01-23 | 2017-06-06 | 扬州大学 | A kind of high-strength tenacity transmission line hardware and its Technology for Heating Processing |
Non-Patent Citations (2)
| Title |
|---|
| 张志远: "钎头壳体用22Si2MnCrNi2Mo钢的研制", 《特殊钢》 * |
| 黄志强等: "物探气动冲击钻头热处理工艺试验研究", 《西南石油学院学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852881A (en) * | 2019-02-21 | 2019-06-07 | 本钢板材股份有限公司 | A kind of 45CrNiMoVA drilling tool steel and its production method |
| CN109852881B (en) * | 2019-02-21 | 2020-12-01 | 本钢板材股份有限公司 | Steel for 45CrNiMoVA drill tool and production method thereof |
| CN110551880A (en) * | 2019-10-24 | 2019-12-10 | 成都先进金属材料产业技术研究院有限公司 | softening heat treatment process for small-size 22Si2MnCrNi2MoA steel rolled material |
| CN110904388A (en) * | 2019-12-30 | 2020-03-24 | 本钢板材股份有限公司 | Excavator crawler belt steel BG45MnCrB and preparation method thereof |
| CN110964984A (en) * | 2019-12-30 | 2020-04-07 | 本钢板材股份有限公司 | Steel SAE4160M for middle and large automobile shaft sleeve and production process thereof |
| CN111004962A (en) * | 2019-12-30 | 2020-04-14 | 本钢板材股份有限公司 | Steel BG80MnCr for steel balls of ball mill and preparation method thereof |
| CN110964984B (en) * | 2019-12-30 | 2021-09-24 | 本钢板材股份有限公司 | Steel SAE4160M for middle and large automobile shaft sleeve and production process thereof |
| CN111961974A (en) * | 2020-08-20 | 2020-11-20 | 本钢板材股份有限公司 | Preparation method of drill rod tail shaft of tapping machine |
| CN111961974B (en) * | 2020-08-20 | 2021-07-09 | 本钢板材股份有限公司 | Preparation method of drill rod tail shaft of tapping machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108546880A (en) | Steel BG22SiMnNi2CrMoA and preparation method thereof | |
| CN102758144B (en) | Production method for steel ingot of large-sized high-nitrogen retaining ring steel | |
| CN105039648B (en) | Method for smelting low-carbon and high-manganese-content molten steel through argon oxygen decarburizing furnace | |
| CN102703834B (en) | Grain-refined gear steel and production process thereof | |
| CN101328522B (en) | Smelting production method of low activation martensitic steel for fusion reactor | |
| CN105088094B (en) | A kind of manufacture method for controlling nitrogen austenitic stainless steel heavy forging | |
| CN105562965A (en) | Method for preparing nickel-based alloy welding wire | |
| CN108531815A (en) | High temperature bolt steel BG25Cr2MoVA and preparation method thereof | |
| CN110055459B (en) | Medium-alloy ultrahigh-strength-toughness rare earth steel and preparation method thereof | |
| CN107841687B (en) | A kind of smelting process of ultralow boron steel | |
| CN110273105B (en) | High-speed tool steel and preparation method thereof | |
| CN109082588B (en) | CrMo round bar quenched and tempered steel and preparation method thereof | |
| CN103627971B (en) | Large gauge drilling tool structural alloy steel and smelting process thereof | |
| CN105483323A (en) | Manufacturing method of 12Cr13 pipe blank for nuclear power plant reactor control rod drive mechanism | |
| CN105479040A (en) | Preparation method of nickel base alloy welding wire high in yield | |
| CN110066904A (en) | A kind of high-intensity and high-tenacity lightweight tool steel and preparation method thereof | |
| CN102260835B (en) | Nuclear power steel 18MnNiMo and its preparation method | |
| CN105132621B (en) | Smelting process for steel for low-silicon aluminum steel-free welding wire | |
| CN104674118B (en) | A kind of containing chromium Low Carbon Iron silk screen steel and production method thereof | |
| CN109023023A (en) | A kind of manufacturing method of rare-earth heat-resistant steel board | |
| CN109628827A (en) | A kind of low-temperature welding cracks sensibility high-strength steel plate HYQ620 and its production method | |
| CN109852881B (en) | Steel for 45CrNiMoVA drill tool and production method thereof | |
| CN111020355B (en) | Submerged arc welding wire steel for low-alloy steel plate and preparation method thereof | |
| CN117230360A (en) | Preparation method of single-vacuum 300M steel | |
| CN108950134B (en) | Remelting method of electroslag ingot for cold roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
|
| RJ01 | Rejection of invention patent application after publication |