Process of evaluating corrosion resistance
US-9212986-B2 · Dec 15, 2015 · US
Corrosion Amount Estimation Apparatus and Corrosion Amount Estimation Method
US2022390354A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022390354-A1 |
| Application number | US-201917777156-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 19, 2019 |
| Priority date | Nov 19, 2019 |
| Publication date | Dec 8, 2022 |
| Grant date | — |
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Abstract
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A corrosion amount estimation apparatus that estimates the corrosion amount of a metal material buried in the ground, the apparatus including: a soil adjustment unit that dries the target soil; a water permeability measurement unit that measures the water permeability of the soil after supplying water to the dried soil; and a corrosion estimation unit that estimates the corrosion amount of the metal material when buried in the soil using the water permeability.
First claim
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1 . A corrosion amount estimation apparatus that estimates a corrosion amount of a metal material buried in the ground, the apparatus comprising: soil adjustment unit that configured to dry a target soil; a water permeability measurement unit configured to measure a water permeability of the soil after supplying water to the dried soil; and a corrosion estimation unit configured to estimate the corrosion amount of the metal material when buried in the soil using the water permeability. 2 . The corrosion amount estimation apparatus according to claim 1 , wherein the water permeability measurement unit measures a change time until a color of the soil completely changes to a color after wetting due to water absorption as the water permeability by image analysis, and the corrosion estimation unit calculates a particle size of the soil using the change time, and estimates the corrosion amount of the metal material based on the particle size. 3 . A corrosion amount estimation method for estimating a corrosion amount of a metal material buried in the ground performed by a corrosion amount estimation apparatus, the method comprising: adjusting a target soil by drying; measuring a water permeability of the soil after supplying water to the dried soil; and estimating the corrosion amount of the metal material when buried in the soil using the water permeability. 4 . The corrosion amount estimation method according to claim 3 , wherein the measuring includes measuring a change time required for a color of the soil to completely change to a color after wetting due to water absorption as the water permeability by image analysis, the estimating includes calculating a particle size of the soil using the change time, and estimating the corrosion amount of the metal material based on the particle size.
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- G01N17/02Primary
Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement · CPC title
of metals · CPC title
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- What does patent US2022390354A1 cover?
- A corrosion amount estimation apparatus that estimates the corrosion amount of a metal material buried in the ground, the apparatus including: a soil adjustment unit that dries the target soil; a water permeability measurement unit that measures the water permeability of the soil after supplying water to the dried soil; and a corrosion estimation unit that estimates the corrosion amount of the …
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification G01N17/02. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Dec 08 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).