JP6528004B2 - 引張強度2000MPa級の防弾鋼板およびその製造方法 - Google Patents
引張強度2000MPa級の防弾鋼板およびその製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims description 107
- 239000010959 steel Substances 0.000 title claims description 107
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 12
- 229910001566 austenite Inorganic materials 0.000 claims description 10
- 238000005496 tempering Methods 0.000 claims description 9
- 229910000734 martensite Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 229910052729 chemical element Inorganic materials 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 235000019589 hardness Nutrition 0.000 description 16
- 239000006104 solid solution Substances 0.000 description 11
- 239000011572 manganese Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 238000005728 strengthening Methods 0.000 description 9
- 239000010936 titanium Substances 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000005088 metallography Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C21D6/008—Heat treatment of ferrous alloys containing Si
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- 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
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- 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
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- C21D8/0226—Hot rolling
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- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
- F41H5/0442—Layered armour containing metal
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- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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Description
本発明は、1種の鋼材料およびその製造方法、特に1種の防弾鋼板及びその製造方法に関する。
国内外反テロ情勢の厳しさに従って、防弾性能を有する装甲車輌に対しての需要は年年増加されている。尚、より高い防弾レベルが要求された装甲鋼板に対しての需要も次第に増加されている。その以外、日常生活においても、一部分の鋼板は、防弾機能と防射撃機能を有する防弾ドア、防弾ヘルメット、防弾服、防弾シールド、あるいは、例えば、銀行カウンター、金庫、防爆車、防弾現金ドラック、潜水艦、上陸用舟艇、沿岸警備艇(coastguard cutter)、ヘリコプターなどの装置の防弾部品の製造に用いられる。
1)成分に基づいて製錬鋳造して、成分が合格である連続鋳造スラブを得り、連続鋳造スラブを加熱炉に送り、加熱を行う;
2)加熱後の連続鋳造スラブを熱間圧延する;
3)熱間圧延後の連続鋳造スラブを冷却する;
4)冷却後の連続鋳造スラブを巻取り、熱間圧延板を得る;
5)熱間圧延板を熱処理して防弾鋼板を得る。
該製造方法で得られた防弾鋼板の各化学元素は、C:0.08〜0.12%、Si:0.7〜1.3%、Mn:1.30〜1.8%、Al:0.01〜0.06%、P≦0.02%、S≦0.004%、N≦0.004%、O≦0.015%、Gr:0.3〜1.0%,Ti+Nb≦0.2%、B:0.0015-0.0025%、残部がFeおよび不可避不純物である。該特許文献の公開の防弾鋼板の厚みが3mm以下である。同時に焼入れ+焼き戻し処理後のブリネル硬さは500級前後だけを達成した。
本発明の目的は、高い引張強度とブリネル硬さを有する1種の引張強度2000MPa級且つブリネル硬さ600級の防弾鋼板を提供するものである。尚、該防弾鋼板は良好な耐大気腐食性能をさらに有する。
Si:0.80〜1.60%;
Mn:0.3〜1.0%;
Al:0.02〜0.06%;
Ni:0.3〜1.2%;
Cr:0.30〜1.00%;
Mo:0.20〜0.80%;
Cu:0.20〜0.60%;
Ti:0.01〜0.05%;
B:0.001〜0.003%;
残部がFeおよび不可避不純物である。
本発明の他の目的は1種の防弾鋼板の製造方法を提供するものである。該製造方法によって得られた防弾鋼板は、高い引張強度と大きいブリネル硬さを有する。その引張強度は2000MPa級を達成できる。そのブリネル硬さは600級を達成できる。尚、該製造方法によって得られた防弾鋼板は、優良な耐大気腐食性能をさらに有する。
前記防弾鋼板の製造方法のステップ(5)では、焼入れ温度が880〜930℃であり、保温時間が板厚×(2〜3)分/mmであることによって、鋼板がオーステナイト化区域に進入することを確保する。
尚、現有技術の厚みが3mm以下である防弾鋼板よりも、本発明前記防弾鋼板の厚みは6〜22mmを達成できるため、該鋼板の防弾と防撃透との能力はより好ましいである。
本発明前記防弾鋼板の製造方法によって引張強度が高い且つブリネル硬さが大きい防弾鋼板を獲得できる。
表1では、実施例1〜6防弾鋼板中の各化学元素の質量百分配合比を示した。
(1)製錬と鋳込み;
(2)加熱:加熱温度が1130〜1250℃、加熱時間が120〜180分だった;
(3)圧延:最終圧延温度を950〜1050℃にコントロールした;
(4)冷却:冷却方式が空気冷却だった;
(5)焼入れ:焼入れ温度が880〜930℃、保温時間が板厚×(2〜3)分/mmだった;
(6)低温焼き戻し:焼き戻し温度が180〜220℃、保温時間が板厚×(3〜5)分/mmだった。
Claims (5)
- 化学元素の質量百分配合比で、C:0.35〜0.45%、Si:0.80〜1.60%、Mn:0.3〜1.0%、Al:0.02〜0.06%、Ni:0.3〜1.2%、Cr:0.30〜1.00%、Mo:0.20〜0.80%、Cu:0.20〜0.60%、Ti:0.01〜0.05%、B:0.001〜0.003%、残部がFeおよび不可避不純物である引張強度2000MPa以上且つブリネル硬さ587以上の防弾鋼板。
- そのミクロ組織が、焼き戻しマルテンサイト+極少量の残留オーステナイトであって、
前記残留オーステナイトの構成比が1%よりも低いことを特徴とする請求項1に記載の防弾鋼板。 - 前記不可避不純物中のP≦0.010%、S≦0.005%であることを特徴とする請求項1に記載の防弾鋼板。
- その厚みが6〜22mmであることを特徴とする請求項1〜3中の何れか1項に記載の防弾鋼板。
- (1)製錬と鋳込み;
(2)加熱温度が1130〜1250℃であり、加熱時間が120〜180分である加熱;
(3)最終圧延温度を950〜1050℃にコントロールする圧延;
(4)冷却方式が空気冷却である冷却;
(5)焼入れ温度が880〜930℃であり、保温時間(分)が板厚(mm)×(2〜3)分/mmである焼入れ;
(6)焼き戻し温度が180〜220℃であり、保温時間(分)が板厚(mm)×(3〜5)分/mmである低温焼き戻しを、順次に含むことを特徴とする請求項1〜4中の何れか1項に記載の防弾鋼板の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201510539848.6A CN105088090A (zh) | 2015-08-28 | 2015-08-28 | 一种抗拉强度2000MPa级的防弹钢板及其制造方法 |
CN201510539848.6 | 2015-08-28 | ||
PCT/CN2016/096636 WO2017036338A1 (zh) | 2015-08-28 | 2016-08-25 | 一种抗拉强度2000MPa级的防弹钢板及其制造方法 |
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JP2018530668A JP2018530668A (ja) | 2018-10-18 |
JP6528004B2 true JP6528004B2 (ja) | 2019-06-12 |
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CN105499269A (zh) | 2015-12-14 | 2016-04-20 | 宝山钢铁股份有限公司 | 一种双重硬度复合钢板及其制造方法 |
CN107310218B (zh) * | 2016-04-26 | 2019-03-29 | 宝山钢铁股份有限公司 | 一种复合防弹钢板及其制造方法 |
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JP7353768B2 (ja) * | 2018-03-27 | 2023-10-02 | 株式会社神戸製鋼所 | ホットスタンプ用鋼板 |
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CN110079741A (zh) * | 2019-06-19 | 2019-08-02 | 本钢板材股份有限公司 | 一种防弹钢板及其制造方法 |
DE102019215055A1 (de) * | 2019-09-30 | 2021-04-01 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung eines Stahlproduktes sowie ein entsprechendes Stahlprodukt |
KR102498156B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498155B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498141B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498158B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498142B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498144B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498147B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498149B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
KR102498150B1 (ko) | 2020-12-18 | 2023-02-08 | 주식회사 포스코 | 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법 |
CN115261717B (zh) * | 2021-04-30 | 2023-05-09 | 宝山钢铁股份有限公司 | 一种1800MPa级高强度自强韧防护用钢板及其制造方法 |
CN113201693B (zh) * | 2021-05-11 | 2022-03-25 | 北京理工大学 | 一种用于侵彻及杀伤多功能战斗部的弹钢及其制备方法 |
CN113528974B (zh) * | 2021-06-18 | 2022-06-21 | 首钢集团有限公司 | 一种防护用钢及其制备方法 |
CN113957351B (zh) * | 2021-10-26 | 2023-01-24 | 江苏沙钢集团有限公司 | 一种1500MPa级热成形钢及其生产方法 |
CN114657457A (zh) * | 2022-02-17 | 2022-06-24 | 山东钢铁集团日照有限公司 | 一种Ti微合金化防护用高强特种钢板及生产方法 |
CN115341138B (zh) * | 2022-07-12 | 2024-04-19 | 江阴兴澄特种钢铁有限公司 | 一种高强防护钢板及其制造方法 |
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DE102008052632A1 (de) * | 2008-10-22 | 2010-05-27 | Benteler Automobiltechnik Gmbh | Sicherungsschrank |
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CN105088090A (zh) * | 2015-08-28 | 2015-11-25 | 宝山钢铁股份有限公司 | 一种抗拉强度2000MPa级的防弹钢板及其制造方法 |
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US20180265942A1 (en) | 2018-09-20 |
WO2017036338A1 (zh) | 2017-03-09 |
US10865458B2 (en) | 2020-12-15 |
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