CN1501070A - Verification agent for stainless steel material and its application method - Google Patents
Verification agent for stainless steel material and its application method Download PDFInfo
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- CN1501070A CN1501070A CNA021519560A CN02151956A CN1501070A CN 1501070 A CN1501070 A CN 1501070A CN A021519560 A CNA021519560 A CN A021519560A CN 02151956 A CN02151956 A CN 02151956A CN 1501070 A CN1501070 A CN 1501070A
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Abstract
The present invention is stainless steel material quality detecting agent and its usage. Compared with available technology, the present invention has the features of no damage to detected material, accurate and reliable detection result, etc. Technologically, the solution is that the stainless steel material quality detecting agent consists of copper sulfate, picric acid, sulfosalicylic acid, sulfuric acid, hydrochloric acid and water. The detecting process includes deoiling, soaking and judgment. The present invention is suitable for the detection, especially, of workpieces with complicated shape and high precision.
Description
Technical field
The present invention relates to a kind of test agent and using method thereof that stainless steel is detected.
Background technology
In the prior art, the check method in common to stainless steel has two big classes: i.e. chemical analysis and instrument analytical method.These two kinds of methods all can make the size of examined material be subjected in various degree destruction, and especially to workpiece complex-shaped, that accuracy requirement is very high again, the variation of size often causes workpiece to scrap.
Summary of the invention
The object of the present invention is to provide a kind of test agent and using method thereof that stainless steel is detected.Compare with disclosed detection method in the prior art, this invention has: can not destroy the size of examined workpiece, and testing result waits characteristics accurately and reliably.
In order to realize the foregoing invention purpose, the invention provides a kind of test agent and using method thereof that the stainless steel work-piece material is detected.Its special character is:
1, the prescription of this chemical polishing agent consists of:
Copper sulphate 5-8 gram, picric acid 0.5-0.6 gram, sulfosalicylic acid 2-3 gram, sulfuric acid 0.5-0.8 gram, hydrochloric acid 5-7 gram are dissolved in mentioned reagent in the suitable quantity of water successively, are diluted with water to 100 milliliters again.
2, the using method of this chemical analysis agent comprises the steps: successively
(1) oil removing: with the greasy dirt on stainless steel work-piece surface to be checked with ethanol or acetone and other organic solvent wiped clean;
(2) immersion liquid: with immersing in the chemical analysis agent after the stainless steel work-piece drying after the oil removing,, then test agent is dropped on the surface of the work, observe 40 seconds winters, 20 seconds summers through 20-40 after second with dropper if workpiece is bigger;
(3) judge: the change color of observing surface of the work:
If a. the color of surface of the work does not have any variation, illustrate that the material of this workpiece is " 1 chromium, 18 nickel 9 ";
If b. the appearance of the color of surface of the work is rose-red, wipe the back blackout, the material that this workpiece is described is a stainless steel inferior;
If c. the color of surface of the work occurs rose-redly, become ash after wiping a little, illustrate that the material of this workpiece is " 1 chromium 13 ", " 2 chromium 13 " or " 3 chromium 13 ";
If d. the appearance of the color of surface of the work is rose-red, and wipes and do not go, the material that this workpiece is described is carbon steel or alloy steel.
Compared with prior art, advantage of the present invention is to make the stainless steel work-piece surface that change color takes place in checkout procedure, can not destroy the size of examined material, and testing result accurately and reliably.The present invention is particularly useful for complex-shaped, the accuracy requirement check of very high workpiece again.
Embodiment
Below the present invention is elaborated.
Embodiment one:
Test agent: copper sulphate 5-8 gram, picric acid 0.5-0.6 gram, sulfosalicylic acid 2-3 gram, sulfuric acid 0.5-0.8 gram, hydrochloric acid 5-7 gram, mentioned reagent is dissolved in the suitable quantity of water successively, be diluted with water to 100 milliliters again.
Using method:
(1) oil removing: with the greasy dirt on stainless steel work-piece surface to be checked with ethanol or acetone and other organic solvent wiped clean;
(2) immersion liquid: with immersing in the chemical analysis agent after the stainless steel work-piece drying after the oil removing,, then test agent is dropped on the surface of the work, observe 40 seconds winters, 20 seconds summers through 20-40 after second with dropper if workpiece is bigger;
(3) judge: the change color of observing surface of the work:
If a. the color of surface of the work does not have any variation, illustrate that the material of this workpiece is " 1 chromium, 18 nickel 9 ";
If b. the appearance of the color of surface of the work is rose-red, wipe the back blackout, the material that this workpiece is described is a stainless steel inferior;
If c. the color of surface of the work occurs rose-redly, become ash after wiping a little, illustrate that the material of this workpiece is " 1 chromium 13 ", " 2 chromium 13 " or " 3 chromium 13 ";
If d. the appearance of the color of surface of the work is rose-red, and wipes and do not go, the material that this workpiece is described is carbon steel or alloy steel.
Embodiment two:
Test agent: copper sulphate 7 grams, picric acid 0.55 gram, sulfosalicylic acid 2.5 grams, sulfuric acid 0.65 gram, hydrochloric acid 6 grams, mentioned reagent is dissolved in the suitable quantity of water successively, be diluted with water to 100 milliliters again.
Using method is with embodiment one.
In the above-described embodiments, each chemical agent product should be selected for use and analyze pure level.
Claims (3)
1, a kind of test agent that is used for the stainless steel detection, it is characterized in that: the prescription of this test agent consists of: copper sulphate 5-8 gram, picric acid 0.5-0.6 gram, sulfosalicylic acid 2-3 gram, sulfuric acid 0.5-0.8 gram, hydrochloric acid 5-7 gram, mentioned reagent is dissolved in the suitable quantity of water successively, is diluted with water to 100 milliliters again.
2, the using method of the test agent of stainless steel according to claim 1 is characterized in that: comprise the steps: successively
(1) oil removing: with the greasy dirt on stainless steel work-piece surface to be checked with ethanol or acetone and other organic solvent wiped clean;
(2) immersion liquid: with immersing in the chemical analysis agent after the stainless steel work-piece drying after the oil removing,, then test agent is dropped on the surface of the work, observe 40 seconds winters, 20 seconds summers through 20-40 after second with dropper if workpiece is bigger;
(3) judge: the change color of observing surface of the work:
If a. the color of surface of the work does not have any variation, illustrate that the material of this workpiece is " 1 chromium, 18 nickel 9 ";
If b. the appearance of the color of surface of the work is rose-red, wipe the back blackout, the material that this workpiece is described is a stainless steel inferior;
If c. the color of surface of the work occurs rose-redly, become ash after wiping a little, illustrate that the material of this workpiece is " 1 chromium 13 ", " 2 chromium 13 " or " 3 chromium 13 ";
If d. the appearance of the color of surface of the work is rose-red, and wipes and do not go, the material that this workpiece is described is carbon steel or alloy steel.
3, test agent as claimed in claim 1, it is characterized in that: the prescription of described test agent consists of: copper sulphate 7 grams, picric acid 0.55 gram, sulfosalicylic acid 2.5 grams, sulfuric acid 0.65 gram, hydrochloric acid 6 grams, mentioned reagent is dissolved in the suitable quantity of water successively, is diluted with water to 100 milliliters again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519560A CN1501070A (en) | 2002-11-13 | 2002-11-13 | Verification agent for stainless steel material and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519560A CN1501070A (en) | 2002-11-13 | 2002-11-13 | Verification agent for stainless steel material and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1501070A true CN1501070A (en) | 2004-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA021519560A Pending CN1501070A (en) | 2002-11-13 | 2002-11-13 | Verification agent for stainless steel material and its application method |
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| CN (1) | CN1501070A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456017C (en) * | 2006-10-19 | 2009-01-28 | 大连华锐股份有限公司 | Method for detecting nickel, molybdemum and chromium content range in stainless steel |
| CN100519843C (en) * | 2007-03-27 | 2009-07-29 | 宝山钢铁股份有限公司 | Composite etchant for 409L ferritic stainless steel and use method thereof |
| CN1793869B (en) * | 2005-12-23 | 2010-05-05 | 李殿忠 | Determination liquid for stainless steel chemical component |
| CN104483308A (en) * | 2014-11-24 | 2015-04-01 | 永兴特种不锈钢股份有限公司 | Method for quickly distinguishing 316L and 304 stainless steels |
| CN105319207A (en) * | 2014-08-01 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method |
| CN106872461A (en) * | 2017-03-10 | 2017-06-20 | 重庆市计量质量检测研究院 | A kind of detectable substance and its detection method for 304 stainless steels of quick judgement |
-
2002
- 2002-11-13 CN CNA021519560A patent/CN1501070A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793869B (en) * | 2005-12-23 | 2010-05-05 | 李殿忠 | Determination liquid for stainless steel chemical component |
| CN100456017C (en) * | 2006-10-19 | 2009-01-28 | 大连华锐股份有限公司 | Method for detecting nickel, molybdemum and chromium content range in stainless steel |
| CN100519843C (en) * | 2007-03-27 | 2009-07-29 | 宝山钢铁股份有限公司 | Composite etchant for 409L ferritic stainless steel and use method thereof |
| CN105319207A (en) * | 2014-08-01 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method |
| CN104483308A (en) * | 2014-11-24 | 2015-04-01 | 永兴特种不锈钢股份有限公司 | Method for quickly distinguishing 316L and 304 stainless steels |
| CN106872461A (en) * | 2017-03-10 | 2017-06-20 | 重庆市计量质量检测研究院 | A kind of detectable substance and its detection method for 304 stainless steels of quick judgement |
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