KR100868093B1 - 원심주조법을 이용한 허스롤 제조 방법 - Google Patents
원심주조법을 이용한 허스롤 제조 방법 Download PDFInfo
- Publication number
- KR100868093B1 KR100868093B1 KR1020070051534A KR20070051534A KR100868093B1 KR 100868093 B1 KR100868093 B1 KR 100868093B1 KR 1020070051534 A KR1020070051534 A KR 1020070051534A KR 20070051534 A KR20070051534 A KR 20070051534A KR 100868093 B1 KR100868093 B1 KR 100868093B1
- Authority
- KR
- South Korea
- Prior art keywords
- rare earth
- earth metal
- coating layer
- hearth roll
- centrifugal casting
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Coating By Spraying Or Casting (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
30; 제2희토류금속도포층
870℃ | 980℃ | |||
10,000 h | 100,000 h | 10,000 h | 100,000 h | |
HK | 2,690 | 4,200 | 1,190 | 1,890 |
HP 개선 후 | 3,821 | 5,490 | 1,469 | 2,590 |
HP | 2,690 | 3,890 | 1,490 | 2,240 |
HP 개선 후 | 4,600 | 6,290 | 2,195 | 3,190 |
28Cr/48Ni | 4,540 | 7,100 | 1,625 | 2,690 |
28Cr/48Ni 개선후 | 5,090 | 7,490 | 2,390 | 2,890 |
HK40 | HK40 개선후 | HP | HP 개선후 | |
mg/㎠ | 25 | 4.5 | 19 | 4 |
HH | HK40 | 개선 후 | HP | 개선 후 | HU | |
760℃ 인장강도 | 218 | 248 | 314 | 286 | 307 | 265 |
항복강도 | 107 | 158 | 135 | 190 | 149 | |
870℃ 인장강도 | 117 | 151 | 176 | 169 | 204 | 125 |
항복강도 | 83 | 91 | 100 | 111 | 135 |
Claims (4)
- 회전주형(1)을 예열하는 단계;상기 회전주형(1)을 회전시키면서 그 내측 둘레면에 도형제를 분무하여 도형제코팅층(10)을 형성하는 단계;상기 도형제코팅층(10)의 내측 둘레면에 희토류금속분말을 분무하여 제1희토류금속도포층(20)을 형성하는 단계; 및상기 제1희토류금속도포층(20)의 내측 둘레면에 용탕을 주입하여 주물관(2)을 주조하는 단계를 포함함을 특징으로 하는 원심주조법을 이용한 허스롤 제조 방법.
- 제 1 항에 있어서, 상기 주물관(2)의 내측 둘레면에 희토류금속분말을 분무하여 제2희토류금속도포층(30)을 형성하는 단계를 더 포함함을 특징으로 하는 원심주조법을 이용한 허스롤 제조 방법.
- 제 1 항 또는 제 2 항에 있어서, 상기 도형제는 입자크기가 40~80㎛인 SiO2계 분말임을 특징으로 하는 원심주조법을 이용한 허스롤 제조 방법.
- 제 1 항 또는 제 2 항에 있어서, 상기 희토류금속분말은 입자크기가 0.1~100㎛인 원자번호 51 ~ 71 및 이트륨중 어느 하나 또는 2 이상이 혼합된 혼합분말임을 특징으로 하는 원심주조법을 이용한 허스롤 제조 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070051534A KR100868093B1 (ko) | 2007-05-28 | 2007-05-28 | 원심주조법을 이용한 허스롤 제조 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070051534A KR100868093B1 (ko) | 2007-05-28 | 2007-05-28 | 원심주조법을 이용한 허스롤 제조 방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100868093B1 true KR100868093B1 (ko) | 2008-11-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070051534A KR100868093B1 (ko) | 2007-05-28 | 2007-05-28 | 원심주조법을 이용한 허스롤 제조 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100868093B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101786535B1 (ko) * | 2014-08-27 | 2017-10-18 | 세종대학교산학협력단 | 세라믹-코팅된 리토르트 외통 및 이의 제조 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980051094A (ko) * | 1996-12-23 | 1998-09-15 | 김종진 | 허스롤의 표면 코팅방법 |
KR20020001650A (ko) * | 2000-06-29 | 2002-01-09 | 카나가와 치히로 | 희토류 화합물 분말 및 불꽃 분무 코팅 |
KR20060064968A (ko) * | 2004-12-09 | 2006-06-14 | 한국생산기술연구원 | 금속주형용 내구성 복합도형재 |
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2007
- 2007-05-28 KR KR1020070051534A patent/KR100868093B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980051094A (ko) * | 1996-12-23 | 1998-09-15 | 김종진 | 허스롤의 표면 코팅방법 |
KR20020001650A (ko) * | 2000-06-29 | 2002-01-09 | 카나가와 치히로 | 희토류 화합물 분말 및 불꽃 분무 코팅 |
KR20060064968A (ko) * | 2004-12-09 | 2006-06-14 | 한국생산기술연구원 | 금속주형용 내구성 복합도형재 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101786535B1 (ko) * | 2014-08-27 | 2017-10-18 | 세종대학교산학협력단 | 세라믹-코팅된 리토르트 외통 및 이의 제조 방법 |
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