Production method of ultrafine crystalline alloy ribbon
US-9224527-B2 · Dec 29, 2015 · US
Method for continuously casting slab containing titanium or titanium alloy
US9796016B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9796016-B2 |
| Application number | US-201615375595-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 12, 2016 |
| Priority date | Jan 7, 2016 |
| Publication date | Oct 24, 2017 |
| Grant date | Oct 24, 2017 |
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- Title
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- Abstract
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Abstract
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The present invention provides a method for casting a slab with good cast surface quality. The method includes pouring molten metal 8 into a mold 2 from one of the paired shorter sides of the mold 2 while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2): 0.0014Δ T 2 +0.0144Δ T +699.45>800 Formula (1) 0.0008Δ T 2 +0.2472Δ T +853.02<1250 Formula (2)
First claim
Opening claim text (preview).
What is claimed is: 1. A method for continuously casting a slab containing titanium or a titanium alloy, the method comprising melting a raw material containing titanium or a titanium alloy to form molten metal, and pouring the molten metal into an open mold having a rectangular cross-section where the molten metal is solidified and withdrawn from the bottom of the mold, wherein the molten metal is poured from one of the paired shorter sides of the mold while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following Formula (1) and Formula (2): 0.0014Δ T 2 +0.0144Δ T+ 699.45>800 Formula (1) 0.0008Δ T 2 +0.2472Δ T+ 853.02<1250. Formula (2) 2. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 1 , wherein the superheat ΔT is 300° C. or higher. 3. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 2 , wherein the surface of the molten metal in the mold is heated by plasma arc. 4. The method for continuously casting a slab containing titanium or a titanium alloy according to claim 1 , wherein the surface of the molten metal in the mold is heated by plasma arc.
Assignees
Inventors
Classifications
Supplying or treating molten metal (B22D41/00 takes precedence) · CPC title
Treating the molten metal · CPC title
with external heating, i.e. the heat source not being a part of the ladle · CPC title
- B22D11/001Primary
of specific alloys · CPC title
with high melting point, e.g. Be 1280 degrees C, Ti 1725 degrees C · CPC title
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- What does patent US9796016B2 cover?
- The present invention provides a method for casting a slab with good cast surface quality. The method includes pouring molten metal 8 into a mold 2 from one of the paired shorter sides of the mold 2 while allowing superheat ΔT [° C.], which is a temperature difference obtained by subtracting the melting point Tm [° C.] of the raw material from the temperature Tin [° C.] of the molten mate…
- Who is the assignee on this patent?
- Kobe Steel Ltd
- What technology area does this patent fall under?
- Primary CPC classification B22D11/001. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 24 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).