Corrosion and mar resistance of steel components
US-2019376188-A1 · Dec 12, 2019 · US
Boronizing composition and method for surface treatment of steels
US9816171B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9816171-B2 |
| Application number | US-201414178396-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 12, 2014 |
| Priority date | Feb 12, 2014 |
| Publication date | Nov 14, 2017 |
| Grant date | Nov 14, 2017 |
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Abstract
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Disclosed are new boronizing compositions consisting of boron fluoride and boron oxide, borax, or an iron boride. The compositions reduce the heating temperature and time. Further disclosed are methods of boronizing a metal substrate including these compositions, or any combination thereof.
First claim
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What is claimed is: 1. A boronizing composition comprising: at least 5% by weight of the composition of at least one boron fluoride, or molten salts thereof: and at least 30% by weight of the composition of one or more of a boron oxide, borax or an iron boride; wherein the one or more of boron oxide, borax or iron boride is FeB or Fe 2 B. 2. The boronizing composition of claim 1 , wherein the boron oxide is B2O3. 3. The composition of claim 1 , wherein the melting point and eutectic point of the composition is less than 900° C. 4. The composition of claim 1 , further comprising an activator, binder, or bed materials. 5. The composition of claim 4 , wherein the activator is selected from the group consisting of potassium tetrafluoroborate, sodium tetrafluoroborate, ammonium tetrafluoroborate, ammonium chloride, sodium carbonate, barium fluoride, borax, or a combination thereof. 6. The composition of claim 4 , wherein the bed material is a carbide. 7. The boronizing composition of claim 1 , wherein the boron fluoride is NaBF4. 8. The boronizing composition of claim 1 , wherein the boron fluoride is KBF4. 9. A boronizing composition comprising: at least 5% by weight of the composition of at least one boron fluoride, or molten salts thereof: and at least 30% by weight of the composition of one or more of a boron oxide, borax or an iron boride; wherein the boron fluoride is NaBF4-KF; and the at least one of boron oxide, borax, or iron boride is FeB. 10. A boronizing composition comprising: at least 5% by weight of the composition of at least one boron fluoride, or molten salts thereof: and at least 30% by weight of the composition of one or more of a boron oxide, borax or an iron boride; wherein the boron fluoride is KBF4-KF; and the at least one of boron oxide, borax, or iron boride is FeB.
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- What does patent US9816171B2 cover?
- Disclosed are new boronizing compositions consisting of boron fluoride and boron oxide, borax, or an iron boride. The compositions reduce the heating temperature and time. Further disclosed are methods of boronizing a metal substrate including these compositions, or any combination thereof.
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification C23C8/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 14 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).