KR100815886B1 - 열연강판의 인장곡선 예측방법 - Google Patents
열연강판의 인장곡선 예측방법 Download PDFInfo
- Publication number
- KR100815886B1 KR100815886B1 KR1020060134945A KR20060134945A KR100815886B1 KR 100815886 B1 KR100815886 B1 KR 100815886B1 KR 1020060134945 A KR1020060134945 A KR 1020060134945A KR 20060134945 A KR20060134945 A KR 20060134945A KR 100815886 B1 KR100815886 B1 KR 100815886B1
- Authority
- KR
- South Korea
- Prior art keywords
- hot rolled
- rolled steel
- steel sheet
- stress
- tensile
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004088 simulation Methods 0.000 title 1
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000005275 alloying Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000005482 strain hardening Methods 0.000 abstract description 2
- 229910000967 As alloy Inorganic materials 0.000 abstract 1
- 230000014509 gene expression Effects 0.000 description 5
- 238000009864 tensile test Methods 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910001563 bainite Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/12—Rolling load or rolling pressure; roll force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
TS(인장응력) | LYP(하부항복응력) | EL (연신율) | 전체 곡선 예측 정도 | |
정확도 | 12.9 MPa | 21.8 MPa | 2.6 % | 11.9 MPa |
Claims (3)
- 인장응력에 도달하기 전까지는 σ=kεn의 관계를 가지고,인장응력을 넘어선 구간에서는 Su-S=C{exp[D(e-eu)]-1}의 관계를 가지는 열연강판의 인장곡선 예측방법.
- 제1항에 있어서,상부항복점(UYP)은,u1+u2×Vf/vd+u3×Vf×Hf+u4×Vp×Hp+u5×Vb×Hb로 표현되고,하부항복점(LYP)은,l1+l2×Vf/vd+l3×Vf×Hf+l4×Vp×Hp+l5×Vb×Hb로 표현되는 관계를 더 포함하는 열연강판의 인장곡선 예측방법.
- 제2항의 방법을 이용하여.중량%로, C: 0.0~0.8%, Si: 0.0~0.3%, Mn: 0.0~1.8%, Cr: 0.0~0.2% 의 합금성분을 포함하고, 잔부 Fe 및 불가피한 불순물로 이루어지고,항복강도는 150~850 MPa, 인장강도는 300~1200 MPa, 연신율은 10~50% 범위의 값을 갖는 열연강판의 인장곡선 예측방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060134945A KR100815886B1 (ko) | 2006-12-27 | 2006-12-27 | 열연강판의 인장곡선 예측방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060134945A KR100815886B1 (ko) | 2006-12-27 | 2006-12-27 | 열연강판의 인장곡선 예측방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100815886B1 true KR100815886B1 (ko) | 2008-03-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060134945A KR100815886B1 (ko) | 2006-12-27 | 2006-12-27 | 열연강판의 인장곡선 예측방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100815886B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114260402A (zh) * | 2021-12-21 | 2022-04-01 | 中国第二重型机械集团德阳万航模锻有限责任公司 | 大直径薄壁球壳类整体模锻件的设计方法及锻造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980049285A (ko) * | 1996-12-19 | 1998-09-15 | 김종진 | 다계층 퍼셉트론을 이용한 강판재 재질예측방법 |
KR20010059600A (ko) * | 1999-12-30 | 2001-07-06 | 이구택 | 후판강재의 미세조직 예측방법 |
JP2001355037A (ja) * | 2000-06-12 | 2001-12-25 | Sumitomo Metal Ind Ltd | 破壊靱性に優れた高強度鋼材 |
KR20040056615A (ko) * | 2002-12-24 | 2004-07-01 | 주식회사 포스코 | 압연 후 냉각되는 강재의 기계적 물성 예측방법 |
KR20080002410A (ko) * | 2006-06-30 | 2008-01-04 | 경상대학교산학협력단 | 인장시험과 유한요소법을 이용한 고 변형률에 대한 진변형률-진응력 곡선의 획득 방법 및 이를 이용한 인장 시험기 |
-
2006
- 2006-12-27 KR KR1020060134945A patent/KR100815886B1/ko not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980049285A (ko) * | 1996-12-19 | 1998-09-15 | 김종진 | 다계층 퍼셉트론을 이용한 강판재 재질예측방법 |
KR20010059600A (ko) * | 1999-12-30 | 2001-07-06 | 이구택 | 후판강재의 미세조직 예측방법 |
JP2001355037A (ja) * | 2000-06-12 | 2001-12-25 | Sumitomo Metal Ind Ltd | 破壊靱性に優れた高強度鋼材 |
KR20040056615A (ko) * | 2002-12-24 | 2004-07-01 | 주식회사 포스코 | 압연 후 냉각되는 강재의 기계적 물성 예측방법 |
KR20080002410A (ko) * | 2006-06-30 | 2008-01-04 | 경상대학교산학협력단 | 인장시험과 유한요소법을 이용한 고 변형률에 대한 진변형률-진응력 곡선의 획득 방법 및 이를 이용한 인장 시험기 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114260402A (zh) * | 2021-12-21 | 2022-04-01 | 中国第二重型机械集团德阳万航模锻有限责任公司 | 大直径薄壁球壳类整体模锻件的设计方法及锻造方法 |
CN114260402B (zh) * | 2021-12-21 | 2023-11-28 | 中国第二重型机械集团德阳万航模锻有限责任公司 | 大直径薄壁球壳类整体模锻件的设计方法及锻造方法 |
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