Anodizing treatment method and structure of internal combustion engine
US-2016138179-A1 · May 19, 2016 · US
Anodizing treatment method and structure of internal combustion engine
US10458034B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10458034-B2 |
| Application number | US-201514776472-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2015 |
| Priority date | Mar 27, 2014 |
| Publication date | Oct 29, 2019 |
| Grant date | Oct 29, 2019 |
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.
Provided are a method for an anodizing treatment on an aluminum-based material and a structure of an internal combustion engine which are provided with both high heat insulation properties and a high corrosion resistance, a high durability and a high impact resistance, and high water-repellent and oil-repellent functions. This method comprises the steps of: forming a second anodic oxide coating 2b by application of AC-DC superimposition electrolysis to an aluminum-based material 1; and, after the step, forming a first anodic oxide coating 2a by application of direct-current electrolysis to the aluminum-based material 1, wherein the second anodic oxide coating 2b is formed on the first anodic oxide coating 2a.
First claim
Opening claim text (preview).
The invention claimed is: 1. A structure of an internal combustion engine, comprising at least: a first anodic oxide coating on a surface of an aluminum-based material constituting a combustion chamber in an internal combustion engine; and a second anodic oxide coating on a surface of the first anodic oxide coating, wherein the first anodic oxide coating has more pores therein than the second anodic oxide coating, and a film thickness of the first anodic oxide coating is greater than a film thickness of the second anodic oxide coating, wherein the film thickness of the second anodic oxide coating is 10 μm to 100 μm, and a total film thickness of the first anodic oxide coating and the second anodic oxide coating is greater than or equal to 50 μm, and wherein the second anodic oxide coating has a random orientation by AC-DC superimposition electrolysis. 2. The structure of an internal combustion engine according to claim 1 , wherein the first anodic oxide coating has a porosity of 25% to 75%. 3. The structure of an internal combustion engine according to claim 1 , wherein the total film thickness of the first anodic oxide coating and the second anodic oxide coating is 50 μm to 500 μm. 4. The structure of an internal combustion engine according claim 1 , wherein the first anodic oxide coating is obtained by application of direct-current electrolysis, and the second anodic oxide coating is obtained by application of AC-DC superimposition electrolysis. 5. The structure of an internal combustion engine according to claim 1 , wherein silicon and nano-level pores derived from the silicon are present in the first anodic coating.
Assignees
Inventors
Classifications
containing inorganic acids · CPC title
Anodisation under pulsed or modulated current or potential · CPC title
characterised by the electrolytes used · CPC title
of aluminium or alloys based thereon · CPC title
- C25D11/12Primary
Anodising more than once, e.g. in different baths · 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 US10458034B2 cover?
- Provided are a method for an anodizing treatment on an aluminum-based material and a structure of an internal combustion engine which are provided with both high heat insulation properties and a high corrosion resistance, a high durability and a high impact resistance, and high water-repellent and oil-repellent functions. This method comprises the steps of: forming a second anodic oxide coating…
- Who is the assignee on this patent?
- Suzuki Motor Corp
- What technology area does this patent fall under?
- Primary CPC classification C25D11/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 29 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).