JPH03115590A - Descaling agent - Google Patents
Descaling agentInfo
- Publication number
- JPH03115590A JPH03115590A JP25106589A JP25106589A JPH03115590A JP H03115590 A JPH03115590 A JP H03115590A JP 25106589 A JP25106589 A JP 25106589A JP 25106589 A JP25106589 A JP 25106589A JP H03115590 A JPH03115590 A JP H03115590A
- Authority
- JP
- Japan
- Prior art keywords
- scale
- stainless steel
- hno3
- soln
- concn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 10
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 10
- 239000010935 stainless steel Substances 0.000 abstract description 10
- 239000002736 nonionic surfactant Substances 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 2
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 abstract description 2
- 235000019270 ammonium chloride Nutrition 0.000 abstract description 2
- 239000002562 thickening agent Substances 0.000 abstract description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910017060 Fe Cr Inorganic materials 0.000 description 2
- 229910002544 Fe-Cr Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229910013470 LiC1 Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は主としてステンレス鋼の熱処理あるいは溶接の
際に生ずるスケールの除去剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to an agent for removing scale generated during heat treatment or welding of stainless steel.
従来、この種のスケール除去剤としては塩酸、硝酸、燐
酸、臭酸等の水溶液を主体とするものが提供されていた
（例えば特公昭４９−３７０１０号、特公昭５５−４０
６７０号等）。Conventionally, this type of scale remover has been provided mainly based on aqueous solutions of hydrochloric acid, nitric acid, phosphoric acid, hydrobromic acid, etc.
No. 670, etc.).
しかしながら上記従来のスケール除去剤は上記酸成分を
２０重斌％以上の高濃度で含むものであり、劇毒物とし
て取扱かわなければならず、保管、輸送、取扱かい等に
極めて面倒なものであった。However, the above-mentioned conventional scale remover contains the above-mentioned acid component at a high concentration of 20% by weight or more, so it must be treated as a highly toxic substance and is extremely troublesome to store, transport, and handle. Ta.
本発明は上記従来の課題を解決するための手段として、
ハロゲン元素を含む塩と、５重量％以下の硝酸とを含む
水溶液からなるスケール除去剤を提供するものである。The present invention, as a means for solving the above-mentioned conventional problems,
The present invention provides a scale remover comprising an aqueous solution containing a salt containing a halogen element and nitric acid of 5% by weight or less.
本発明に用いられるハロゲン元素を含む塩とはＫＣＩ、
Ｎａ１ｌ、 ＬｉＣ１，ＭｇＣ１，、ＣａＣ１，、Ｋ
Ｂｒ、 ＮａＢｒ。The salt containing a halogen element used in the present invention is KCI,
Na1l, LiC1, MgC1,, CaC1,, K
Br, NaBr.
ＬｉＢｒ、 ＭｇＢｒ、、 ＣａＢｒ、、 Ｋ Ｆ 、
ＮａＦ 、 ＭｇＦ２． ＣａＦ２等のハロゲン元素
を含む金属塩、ＮＨ４Ｃｌ、 ＮＨ４Ｂｒ。LiBr, MgBr, CaBr, KF,
NaF, MgF2. Metal salts containing halogen elements such as CaF2, NH4Cl, NH4Br.
ＮＨ，Ｆ等のハロゲン元素を含むアンモニア塩等であり
、上記ハロゲン元素を含む塩（以下単に塩と云う）は本
発明のスケール除去剤中通常１〜３重量％の範囲で含ま
れる。These include ammonia salts containing halogen elements such as NH and F, and the salts containing halogen elements (hereinafter simply referred to as salts) are usually contained in the range of 1 to 3% by weight in the scale remover of the present invention.
本発明のスケール除去剤においては、硝酸は５重量％以
下で含まれるが望ましくは１．５重量％以上含まれる。In the scale remover of the present invention, nitric acid is contained in an amount of 5% by weight or less, but preferably 1.5% by weight or more.
本発明のスケール除去剤においては、硝酸以外塩酸、硫
酸、弗酸、臭酸、燐酸、蓚酸等の酸が含まれてもよいが
、硝酸を含む全酸含有量が５重量％以下とすべきである
。その池水発明のスケール除去剤においては界面活性剤
、特にノニオン性界面活性剤、ポリアクリル酸塩類、ポ
リビニルアルコール、カルボキシメチルセルローズ、ポ
リアクリルアミド等の増粘剤等が添加される。The scale remover of the present invention may contain acids other than nitric acid such as hydrochloric acid, sulfuric acid, hydrofluoric acid, hydrochloric acid, phosphoric acid, oxalic acid, etc., but the total acid content including nitric acid should be 5% by weight or less. It is. In the scale remover of the Ikemizu invention, surfactants, particularly nonionic surfactants, polyacrylates, polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, and other thickeners are added.
ハロゲン元素を含む塩の存在下では低濃度の硝酸であっ
ても特にステンレス鋼等の鋼材のスケールを良好に溶解
する。In the presence of a salt containing a halogen element, even a low concentration of nitric acid dissolves scale particularly in steel materials such as stainless steel.
したがって本発明においては劇毒物として取扱かう必要
がなく、したがって保管、輸送、取扱かいが極めて簡単
でかつスケールを迅速に除去するスケール除去剤が得ら
れる。Therefore, in the present invention, there is no need to treat it as a highly toxic substance, and therefore, a scale remover can be obtained which is extremely easy to store, transport, and handle, and which quickly removes scale.
〔実施例〕
実施例１
下記の組成を混合したＦｅ −Ｃｒ系ステンレス鋼用ス
ケール除去剤を調製した。[Example] Example 1 A scale remover for Fe-Cr stainless steel was prepared by mixing the following composition.
水 ９３ｇノニオ
ン性界面活性剤 １ｇ
ポリアクリル酸アンモニウム １ｇ
ＮａＣ１２ｇ
７０重量％ＨＮＯ，水溶液 ３Ｋ
Ｆｅ −Ｃｒ系ステンレス鋼を溶接した際に生ずるスケ
ール上に上記スケール除去剤を刷毛で塗布し。Water: 93g Nonionic surfactant: 1g Ammonium polyacrylate: 1g NaC: 12g 70% by weight HNO, aqueous solution: 3K The scale remover was applied with a brush to the scale generated when Fe--Cr stainless steel was welded.
３０分間放置した後洗滌した所スケールは完全に除去さ
れた。After leaving it for 30 minutes and washing it, the scale was completely removed.
実施例２
下記の組成を混合したＦｅ −Ｃｒ −Ｎｉ系ステンレ
ス鋼用スケール除去剤を調製した。Example 2 A scale remover for Fe-Cr-Ni stainless steel was prepared by mixing the following composition.
水 ９０．５ｇノ
ニオン性界面活性剤 １ｇ
ポリアクリルアミド １ｇ
Ｎ８４ Ｆ １−５ ｇ７０
重量％ＨＮＯ，水溶液 ６ｇ
Ｆｅ −Ｃｒ −Ｎｉ系ステンレス鋼を溶接した際に生
ずるスケール上に上記スケール除去剤を刷毛で塗布し、
３０分間放置した後洗滌した所スケールは完全に除去さ
れた。Water 90.5g Nonionic surfactant 1g Polyacrylamide 1g N84 F 1-5 g70
Weight % HNO, aqueous solution 6 g Fe-Cr-Ni stainless steel was welded, and the above-mentioned scale remover was applied with a brush on the scale generated when welding,
After leaving it for 30 minutes and washing it, the scale was completely removed.
比較例１
実施例１においてＮａＣ１を含まず他の組成は同一であ
るスケール除去剤をＦｅ −Ｃｒ系ステンレス鋼を溶接
した際に生ずるスケール上に刷毛で塗布し、３０分間放
置した後洗滌した所スケールは全く除去されておらず、
１０時間放置によっても殆ど除去されていなかった。Comparative Example 1 A scale remover that does not contain NaCl but has the same composition as in Example 1 was applied with a brush onto the scale generated when Fe-Cr stainless steel was welded, left for 30 minutes, and then washed. No scale was removed at all.
Even after leaving it for 10 hours, it was hardly removed.
比較例２
実施例２においてＮ）１． Ｆを含まず他の組成は同一
であるスケール除去剤をＦｅ−Ｃｒ−Ｎｉ系ステンレス
鋼を溶接した際に生ずるスケール上に刷毛で塗布し、３
０分間放置した後洗滌した所スケールは全く除去されて
おらず、１０時間放置によっても殆ど除去されていなか
った。Comparative Example 2 In Example 2, N)1. A scale remover that does not contain F and has the same composition as above is applied with a brush to the scale that is generated when Fe-Cr-Ni stainless steel is welded.
When washed after being left for 0 minutes, no scale was removed, and almost no scale was removed even after being left for 10 hours.
Claims (1)
水溶液からなるスケール除去剤A scale remover consisting of an aqueous solution containing a salt containing a halogen element and nitric acid of 5% by weight or less
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25106589A JPH03115590A (en) | 1989-09-27 | 1989-09-27 | Descaling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25106589A JPH03115590A (en) | 1989-09-27 | 1989-09-27 | Descaling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03115590A true JPH03115590A (en) | 1991-05-16 |
Family
ID=17217108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25106589A Pending JPH03115590A (en) | 1989-09-27 | 1989-09-27 | Descaling agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03115590A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204492A (en) * | 1997-01-20 | 1998-08-04 | Toyota Motor Corp | Water-soluble detergent |
| FR2883575A1 (en) * | 2005-03-22 | 2006-09-29 | Airbus France Sas | Solution for pickling stainless steel, useful particularly for aircraft components, comprises nitric acid and ammonium bifluoride |
| JP2007131885A (en) * | 2005-11-09 | 2007-05-31 | Nippon Steel Corp | Method for pickling steel and steel pickling liquid |
| CN1326985C (en) * | 2005-08-03 | 2007-07-18 | 夏光甫 | Multi-purpose cleaning mixture |
| JP2009102035A (en) * | 2007-10-23 | 2009-05-14 | Takayuki Fujimoto | Pull-top opening sealing tool of beverage can |
| CN103046064A (en) * | 2012-12-18 | 2013-04-17 | 浙江大学 | Stainless steel acid-washing substituting agent and preparation method thereof |
-
1989
- 1989-09-27 JP JP25106589A patent/JPH03115590A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10204492A (en) * | 1997-01-20 | 1998-08-04 | Toyota Motor Corp | Water-soluble detergent |
| FR2883575A1 (en) * | 2005-03-22 | 2006-09-29 | Airbus France Sas | Solution for pickling stainless steel, useful particularly for aircraft components, comprises nitric acid and ammonium bifluoride |
| CN1326985C (en) * | 2005-08-03 | 2007-07-18 | 夏光甫 | Multi-purpose cleaning mixture |
| JP2007131885A (en) * | 2005-11-09 | 2007-05-31 | Nippon Steel Corp | Method for pickling steel and steel pickling liquid |
| JP4669375B2 (en) * | 2005-11-09 | 2011-04-13 | 新日本製鐵株式会社 | Steel pickling method and steel pickling solution |
| JP2009102035A (en) * | 2007-10-23 | 2009-05-14 | Takayuki Fujimoto | Pull-top opening sealing tool of beverage can |
| CN103046064A (en) * | 2012-12-18 | 2013-04-17 | 浙江大学 | Stainless steel acid-washing substituting agent and preparation method thereof |
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