KR20000041284A - 인성및 내마모성이 우수한 냉간가공용 공구강 제조방법 - Google Patents
인성및 내마모성이 우수한 냉간가공용 공구강 제조방법 Download PDFInfo
- Publication number
- KR20000041284A KR20000041284A KR1019980057122A KR19980057122A KR20000041284A KR 20000041284 A KR20000041284 A KR 20000041284A KR 1019980057122 A KR1019980057122 A KR 1019980057122A KR 19980057122 A KR19980057122 A KR 19980057122A KR 20000041284 A KR20000041284 A KR 20000041284A
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- South Korea
- Prior art keywords
- tool steel
- carbide
- hot
- alloy
- manufacturing
- Prior art date
Links
- 229910001315 Tool steel Inorganic materials 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000005299 abrasion Methods 0.000 title claims abstract description 7
- 238000012545 processing Methods 0.000 title description 5
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 17
- 239000000956 alloy Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000013590 bulk material Substances 0.000 claims abstract description 5
- 238000005242 forging Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000001192 hot extrusion Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005482 strain hardening Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 150000001247 metal acetylides Chemical class 0.000 description 12
- 229910052720 vanadium Inorganic materials 0.000 description 12
- 229910052750 molybdenum Inorganic materials 0.000 description 11
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000011733 molybdenum Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000004663 powder metallurgy Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 229910001295 No alloy Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000008207 working material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/003—Moulding by spraying metal on a surface
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
- Forging (AREA)
Abstract
Description
구분시편No | 합금조성(중량%) | 액상선온도(℃) | 용탕온도(℃) | MC 탄화물크기(㎛) | ||||||
C | V | Cr | Mo | Fe | 950℃ | 1050℃ | 1150℃ | |||
실시예 1 | 2.1 | 9.5 | 4.3 | 1.7 | bal. | 1284.6 | 1380 | 3.5 | 3.6 | 3.8 |
실시예 2 | 2.1 | 9.5 | 4.3 | 2.9 | bal. | 1280.6 | 3.1 | 3.3 | 3.6 | |
실시예 3 | 2.1 | 9.5 | 4.3 | 5.5 | bal. | 1272.0 | 2.8 | 2.9 | 3.1 | |
실시예 4 | 2.1 | 9.5 | 4.3 | 7.2 | bal. | 1266.4 | 2.2 | 2.3 | 2.5 | |
실시예 5 | 2.1 | 9.5 | 4.3 | 9.6 | bal. | 1258.5 | 1.7 | 1.8 | 2.1 | |
비교재 1 | 2.1 | 9.5 | 4.3 | 1.3 | bal. | 1285.87 | 4.1 | 4.4 | 4.8 |
구분시편No | 합금조성(중량%) | 경도(HRc) | 굽힘강도(GPa) | 내마모성(하중감량)/(mg/km) | ||||
C | V | Cr | Mo | Fe | ||||
실시예 1 | 2.1 | 9.5 | 4.3 | 1.7 | bal. | 63.9 | 2.4 | 56 |
실시예 2 | 2.1 | 9.5 | 4.3 | 2.9 | bal. | 64.1 | 2.8 | 52 |
실시예 3 | 2.1 | 9.5 | 4.3 | 5.5 | bal. | 65.2 | 3.2 | 49 |
실시예 4 | 2.1 | 9.5 | 4.3 | 7.2 | bal. | 65.4 | 3.8 | 47 |
실시예 5 | 2.1 | 9.5 | 4.3 | 9.6 | bal. | 65.9 | 4.3 | 42 |
비교재 1 | 2.1 | 9.5 | 4.3 | 1.3 | bal. | 63.7 | 2.3 | 55 |
Claims (6)
- 분무성형에 의해 공구강을 제조하는 방법에 있어서,CaVbCrCMoXFe를 기본조성으로 하고, 그 함량은 중량%를 기준으로 1.5≤a≤3.0, 8.0≤b≤12.0, 4.0≤c≤6.0, 1.6≤x≤10.0이고, 나머지는 Fe의 조성을 갖도록 합금을 용해한 다음, 상기 용융물을 가스분사에 의해 모재(bulk material)를 얻고, 이 모재를 열간가공하는 것을 포함하여 구성됨을 특징으로 하는 인성 및 내마모성이 우수한 공구강의 제조방법.
- 제 1항에 있어서, 상기 가스분사직전의 용융물의 온도는 그 액상선온도+(50∼150)℃의 범위로 유지함을 특징으로 하는 제조방법
- 제 1항에 있어서, 상기 열간가공은 950℃-1150℃의 온도범위에서 행함을 특징으로 하는 제조방법
- 제 1항에 있어서, 상기 열간가공은 단조비 6이상으로 행하는 열간단조임을 특징으로 하는 제조방법
- 제 1항에 있어서, 상기 열간가공은 압하율이 80%이상인 열간압연에 의해 행함을 특징으로 하는 제조방법
- 제 1항에 있어서, 상기 열간가공은 압출비가 10:1이상인 열간압출에 의해 행함을 특징으로 하는 제조방법
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980057122A KR100299463B1 (ko) | 1998-12-22 | 1998-12-22 | 인성및내마모성이우수한냉간가공용공구강제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980057122A KR100299463B1 (ko) | 1998-12-22 | 1998-12-22 | 인성및내마모성이우수한냉간가공용공구강제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000041284A true KR20000041284A (ko) | 2000-07-15 |
KR100299463B1 KR100299463B1 (ko) | 2001-11-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980057122A KR100299463B1 (ko) | 1998-12-22 | 1998-12-22 | 인성및내마모성이우수한냉간가공용공구강제조방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100299463B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100936363B1 (ko) * | 2007-12-21 | 2010-01-12 | 주식회사 포스코 | 열처리 치수변화가 작은 냉간 공구강 제조방법 |
WO2012087028A2 (ko) | 2010-12-23 | 2012-06-28 | 주식회사 포스코 | 내마모성, 내식성 및 저온인성이 우수한 오일샌드 슬러리 파이프용 강판 및 그 제조방법 |
-
1998
- 1998-12-22 KR KR1019980057122A patent/KR100299463B1/ko not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100936363B1 (ko) * | 2007-12-21 | 2010-01-12 | 주식회사 포스코 | 열처리 치수변화가 작은 냉간 공구강 제조방법 |
WO2012087028A2 (ko) | 2010-12-23 | 2012-06-28 | 주식회사 포스코 | 내마모성, 내식성 및 저온인성이 우수한 오일샌드 슬러리 파이프용 강판 및 그 제조방법 |
US9238849B2 (en) | 2010-12-23 | 2016-01-19 | Posco | Steel sheet for an oil sand slurry pipe having excellent abrasion resistance, corrosion resistance, and low-temperature toughness and method for manufacturing same |
Also Published As
Publication number | Publication date |
---|---|
KR100299463B1 (ko) | 2001-11-22 |
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