Threaded connection for steel pipe
US-11313181-B2 · Apr 26, 2022 · US
Pass roll for hot-dip galvanized steel sheet manufacturing facility, hot-dip galvanized steel sheet manufacturing facility, and hot-dip galvanized steel sheet manufacturing method
US11479840B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11479840-B2 |
| Application number | US-201917044731-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 18, 2019 |
| Priority date | May 23, 2018 |
| Publication date | Oct 25, 2022 |
| Grant date | Oct 25, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A pass roll for a hot-dip galvanized steel sheet manufacturing facility, the pass roll includes: a roll body; and a heat-resistant felt layer covering the roll body, wherein the heat-resistant felt layer has a thermal decomposition temperature of 420° C. or higher and has a surface hardness evaluation index at 400° C. of more than 0.11 μm/N.
First claim
Opening claim text (preview).
The invention claimed is: 1. A pass roll for a hot-dip galvanized steel sheet manufacturing facility, the pass roll comprising: a roll body; and a heat-resistant felt layer covering the roll body, wherein the heat-resistant felt layer is in direct contact with a surface of the roll body and has a thermal decomposition temperature of 420° C. or higher and has a surface hardness evaluation index at 400° C. of more than 0.11 μm/N and 100 μm/N or less. 2. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 1 , wherein the heat-resistant felt layer is in contact with a surface of the roll body. 3. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 2 , wherein the heat-resistant felt layer is made of polyparaphenylene benzobisoxazole fibers. 4. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 3 , wherein a thickness of the heat-resistant felt layer is 1 to 20 mm. 5. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 2 , wherein a thickness of the heat-resistant felt layer is 1 to 20 mm. 6. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 1 , wherein the heat-resistant felt layer is made of polyparaphenylene benzobisoxazole fibers. 7. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 6 , wherein a thickness of the heat-resistant felt layer is 1 to 20 mm. 8. The pass roll for the hot-dip galvanized steel sheet manufacturing facility according to claim 1 , wherein a thickness of the heat-resistant felt layer is 1 to 20 mm. 9. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 1 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 10. A hot-dip galvanized steel sheet manufacturing method for manufacturing a hot-dip galvanized steel sheet by immersing a steel strip in a galvanizing bath on a steel sheet manufacturing line, wherein the hot-dip galvanized steel sheet is manufactured by using a pass roll according to claim 1 which is configured to pass the steel strip subjected to hot-dip galvanizing in the galvanizing bath, the pass roll comprising a roll body covered with a heat-resistant felt layer, the heat-resistant felt layer being in direct contact with a surface of the roll body and having a thermal decomposition temperature of 420° C. or higher and having a surface hardness evaluation index at 400° C. of more than 0.11 μm/N and 100 μm/N or less. 11. The hot-dip galvanized steel sheet manufacturing method according to claim 10 , wherein the heat-resistant felt layer is in contact with a surface of the roll body. 12. The hot-dip galvanized steel sheet manufacturing method according to claim 10 , wherein the heat-resistant felt layer is made of polyparaphenylene benzobisoxazole fibers. 13. The hot-dip galvanized steel sheet manufacturing method according to claim 10 , wherein a thickness of the heat-resistant felt layer is 1 to 20 mm. 14. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 2 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 15. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 6 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 16. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 8 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 17. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 3 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 18. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 5 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 19. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 7 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath. 20. A hot-dip galvanized steel sheet manufacturing facility, wherein the pass roll according to claim 4 is a roll configured to pass a steel strip subjected to hot-dip galvanizing in a galvanizing bath.
Assignees
Inventors
Classifications
Methods of manufacture, e.g. shaping, applying coatings · CPC title
Removing excess of molten coatings from elongated material · CPC title
Plates; Strips · CPC title
Rolling apparatus, e.g. rolling stands, rolls · CPC title
Sliding surface consisting mainly of wood or fibrous material · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11479840B2 cover?
- A pass roll for a hot-dip galvanized steel sheet manufacturing facility, the pass roll includes: a roll body; and a heat-resistant felt layer covering the roll body, wherein the heat-resistant felt layer has a thermal decomposition temperature of 420° C. or higher and has a surface hardness evaluation index at 400° C. of more than 0.11 μm/N.
- Who is the assignee on this patent?
- Nippon Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C23C2/003. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 25 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).