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CN101560433B - Anti-magnesium hard water anti-magnesium corrosion environmentally-friendly water soluble cutting solution - Google Patents

Anti-magnesium hard water anti-magnesium corrosion environmentally-friendly water soluble cutting solution Download PDF

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Publication number
CN101560433B
CN101560433B CN2009100275323A CN200910027532A CN101560433B CN 101560433 B CN101560433 B CN 101560433B CN 2009100275323 A CN2009100275323 A CN 2009100275323A CN 200910027532 A CN200910027532 A CN 200910027532A CN 101560433 B CN101560433 B CN 101560433B
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magnesium
acid
performance
methyl
product
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CN101560433A (en
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陈宣和
常建忠
王勇
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QIDONG YOUXILU CHEMICAL INDUSTRY Co Ltd
Shanghai Yushiro Chemical Industry Co Ltd
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QIDONG YOUXILU CHEMICAL INDUSTRY Co Ltd
Shanghai Yushiro Chemical Industry Co Ltd
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Abstract

The invention discloses an anti-magnesium hard water anti-magnesium corrosion environmentally-friendly water soluble cutting solution, which is composed of organic acid, organic amine, corrosion inhibitor, base oil, synthetic ester, surfactant, water and other additives. The invention employs particular surfactant to improve the anti-magnesium hard water performance of the product, employs specialcompound corrosion inhibitor to enhance the anticorrosion performance of the product, and compounds a plurality of rust inhibitors, lubricants, disinfectants and defoaming agents, the product has exc ellent anti-magnesium hard water performance, anti-magnesium corrosion performance and operating safety performance, and can heighten the service performance and processing performance of the product greatly. Meanwhile, the product, which is good for environmental protection, is an environmentally-friendly magnesium alloy cutting solution with excellent performances.

Description

Anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid
Technical field:
The present invention relates to a kind of water-soluble metalworking liquid.
Background technology:
It is little (about 1.8g/cm3 that magnesiumalloy has density; Be approximately 2/3 of aluminium; Iron 1/4), specific tenacity is high, thermal diffusivity is good, anti-electromagnetic interference capability is strong, Young's modulus is big; Therefore advantages such as shock absorbing property is good have a wide range of applications in fields such as Aeronautics and Astronautics, automotive industrys, to reach light-weighted purpose.
But because the chemical property of magnesiumalloy is active, brought big difficulty to processing, mg ion can dissolve in the cutting fluid in a large number in the course of processing, causes the magnesium hardness fast rise of cutting fluid, thereby causes the layering of cutting fluid and can not use.The corrosion discoloration problem very easily takes place in the magnesium alloy anticorrosion poor-performing in the course of processing simultaneously, also very easily produces hydrogen, influences the operation processing safety.And conventional at present magnesium alloy cutting fluid is because of ubiquity anti-magnesium hard water poor-performing; Work-ing life is shorter; And problem such as anti-magnesium corrosive nature is relatively poor, and the hydrogen generating capacity is more, and operational security is not good; Therefore the processing request that can't adapt to magnesiumalloy must develop the water-soluble metalworking liquid that satisfies the harsh excellent performance that requires of magnesiumalloy processing.
Summary of the invention:
The object of the present invention is to provide a kind of anti-magnesium hard water excellence, the excellent anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid of corrosion resistance.
Technical solution of the present invention is:
A kind of anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid is characterized in that: be made up of following composition by weight:
Organic acid 5~30%
Organic amine 1~10%
Inhibiter 1~10%
Base oil 30~60%
Synthetic ester 10~40%
Tensio-active agent 10~40%
Water 1~10%
Other additive 0.5~5%.
Organic acid is C 6~C 14Straight chain diprotic acid, C 8~C 12Lipid acid, p-tert-butyl benzoic acid, p-Nitrobenzenecarboxylic acid or triazines multi-carboxylic acid compounds.
Organic amine is Monoethanolamine MEA BASF, diethylolamine, trolamine, a Yi Bingchunan, HSDB 338, tri-isopropanolamine, morpholine, dicyclohexyl amine, N-methylmorpholine, 2-amino-2-methyl-1-propanol or diethylaminoethanol.
Inhibiter is benzotriazole, methyl benzotriazazole, 2-mercapto benzothiazole, silicate, metasilicate, tetraethoxysilane, amination modifying siloxanes, amino Trimethoxy silane, polyalkoxysilane, alkyl polyoxyethylene SULPHOSUCCINIC ACID ESTER or alkyl phosphonic acid.
Base oil is MO or hydrogenated oil, synthetic oil.
Synthetic ester is trihydroxymethylpropanyl ester, pentaerythritol ester, the different monooctyl ester of oleic acid, Octyl adipate or Wickenol 155.
Tensio-active agent is aliphatic alcohol polyethenoxy (5~12) ether, alkylphenol-polyethenoxy (5~12) ether, aliphatic alcohol polyethenoxy polyethenoxy ether, fatty acid amide, aliphatic alcohol polyethenoxy (5~12) ester, soap, sulphonate, aliphatic acid polyethenoxy (5~12) ether or composite modified tensio-active agent.
Other additive is one or more in sterilant, skimmer, the Ao's mixture.
Sterilant is 5-chloro-2-methyl-4-isothiazoline-3-ketone, 2-methyl-4-isothiazoline-3-ketone, methyl-N-benzimidazole-2-carbamate, s-triazine or benzoate; Skimmer is silicone emulsion, polyether silicone oil or polyethers; Ao's mixture is YD 30, disodium edta, sulfonate type tetrahydroglyoxaline or HEDP.
The present invention has excellent anti-magnesium hard water performance, and this product can anti-11000mg/l magnesium hard water, can increase substantially the work-ing life of product; The present invention has the excellent magnesium corrosive nature that prevents, prevents that effectively magnesium from adding the corrosion discoloration problem in man-hour (trade mark is an AZ31 magnesiumalloy sheet, 50 ℃, nondiscoloration under the 24hr condition).This product has excellent job safety performance simultaneously, greatly reduces the hydrogen generating capacity (unit hydrogen generating capacity can reduce more than a times than like product) that adds man-hour, is applicable to the various magnesiumalloy materials of processing, guarantees operational security.
The present invention adopts special tensio-active agent to improve the corrosion resistance of product anti-magnesium hard water performance, special composite corrosion inhibitor raising product; And composite multiple rust-preventive agent, lubricant, sterilant and skimmer; Product has excellent anti-magnesium hard water performance, excellent magnesium corrosive nature and the job safety performance of preventing, can increase substantially the use properties and the processing characteristics of product.The Product Green environmental protection is a kind of excellent performance environmental-friendly magnesium alloy cutting fluid simultaneously.
Below in conjunction with embodiment the present invention is described further.
Embodiment:
Embodiment 1:
Following composition by weight is mixed stirring, gets product:
Sebacic acid 10%
Oleic acid 5%
Diethylolamine 8%
Methyl benzotriazazole 2%
MO 35%
Trihydroxymethylpropanyl ester 20%
Aliphatic alcohol polyethenoxy (9) ether 5%
Aliphatic alcohol polyethenoxy polyethenoxy ether 10%
5-chloro-2-methyl-4-isothiazoline-3-ketone 0.5%
Silicone emulsion 0.5%
Water 4%.
Embodiment 2:
A kind of anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid, form by following composition by weight mixing:
Organic acid 5~30% (example 5%, 20%, 30%)
Organic amine 1~10% (example 1%, 5%, 10%)
Inhibiter 1~10% (example 1%, 5%, 10%)
Base oil 30~60% (example 30%, 45%, 60%)
Synthetic ester 10~40% (example 10%, 20%, 40%)
Tensio-active agent 10~40% (example 10%, 20%, 40%)
Water 1~10% (example 1%, 5%, 10%)
Other additive 0.5~5% (example 0.5%, 2%, 5%).
The consumption sum of above-mentioned each component is 100%.
Organic acid is C 6~C 14Straight chain diprotic acid, C 8~C 12Lipid acid, p-tert-butyl benzoic acid, p-Nitrobenzenecarboxylic acid or triazines multi-carboxylic acid compounds.
Organic amine is Monoethanolamine MEA BASF, diethylolamine, trolamine, a Yi Bingchunan, HSDB 338, tri-isopropanolamine, morpholine, dicyclohexyl amine, N-methylmorpholine, 2-amino-2-methyl-1-propanol or diethylaminoethanol.
Inhibiter is benzotriazole, methyl benzotriazazole, 2-mercapto benzothiazole, silicate, metasilicate, tetraethoxysilane, amination modifying siloxanes, amino Trimethoxy silane, polyalkoxysilane, alkyl polyoxyethylene SULPHOSUCCINIC ACID ESTER or alkyl phosphonic acid.
Base oil is MO or hydrogenated oil, synthetic oil.
Synthetic ester is trihydroxymethylpropanyl ester, pentaerythritol ester, the different monooctyl ester of oleic acid, Octyl adipate or Wickenol 155.
Tensio-active agent is aliphatic alcohol polyethenoxy (5~12) ether, alkylphenol-polyethenoxy (5~12) ether, aliphatic alcohol polyethenoxy polyethenoxy ether, fatty acid amide, aliphatic alcohol polyethenoxy (5~12) ester, soap, sulphonate, aliphatic acid polyethenoxy (5~12) ether or composite modified tensio-active agent.
Other additive is one or more in sterilant, skimmer, the Ao's mixture.
Sterilant is 5-chloro-2-methyl-4-isothiazoline-3-ketone, 2-methyl-4-isothiazoline-3-ketone, methyl-N-benzimidazole-2-carbamate, s-triazine or benzoate; Skimmer is silicone emulsion, polyether silicone oil or polyethers; Ao's mixture is YD 30, disodium edta, sulfonate type tetrahydroglyoxaline or HEDP.

Claims (2)

1. anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid is characterized in that: be made up of following composition by weight:
Figure FDA0000091556090000011
Organic acid is C 6~C 14Straight chain diprotic acid, C 8~C 12Lipid acid, p-tert-butyl benzoic acid, p-Nitrobenzenecarboxylic acid or triazines multi-carboxylic acid compounds;
Organic amine is Monoethanolamine MEA BASF, diethylolamine, trolamine, a Yi Bingchunan, HSDB 338, tri-isopropanolamine, morpholine, dicyclohexyl amine, N-methylmorpholine, 2-amino-2-methyl-1-propanol or diethylaminoethanol;
Inhibiter is benzotriazole, methyl benzotriazazole, 2-mercapto benzothiazole, silicate, metasilicate, tetraethoxysilane, amination modifying siloxanes, amino Trimethoxy silane, polyalkoxysilane, alkyl polyoxyethylene SULPHOSUCCINIC ACID ESTER or alkyl phosphonic acid;
Base oil is MO or synthetic oil;
Synthetic ester is trihydroxymethylpropanyl ester, pentaerythritol ester, the different monooctyl ester of oleic acid, Octyl adipate or Wickenol 155;
Tensio-active agent is aliphatic alcohol polyethenoxy 5~12 ethers, alkylphenol-polyethenoxy 5~12 ethers, aliphatic alcohol polyethenoxy polyethenoxy ether, fatty acid amide, aliphatic alcohol polyethenoxy 5~12 esters, soap, sulphonate or aliphatic acid polyethenoxy 5~12 ethers; Other additive is one or more in sterilant, skimmer, the sequestrant.
2. anti-magnesium hard water anti-magnesium corrosion environmentally-friendly type water-soluble metalworking liquid according to claim 1 is characterized in that: sterilant is 5-chloro-2-methyl-4-isothiazoline-3-ketone, 2-methyl-4-isothiazoline-3-ketone, methyl-N-benzimidazole-2-carbamate, s-triazine or benzoate; Skimmer is silicone emulsion, polyether silicone oil or polyethers; Sequestrant is YD 30, disodium edta, sulfonate type tetrahydroglyoxaline or HEDP.
CN2009100275323A 2009-05-11 2009-05-11 Anti-magnesium hard water anti-magnesium corrosion environmentally-friendly water soluble cutting solution Active CN101560433B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291408A1 (en) * 2001-09-07 2003-03-12 Dai-Ichi Kogyo Seiyaku Co., Ltd. Nonflammable water-based cutting fluid composition
CN1548505A (en) * 2003-05-24 2004-11-24 启东尤希路化学工业有限公司 Water soluble cutting fluid
CN1730633A (en) * 2005-08-09 2006-02-08 启东尤希路化学工业有限公司 Hard water resistant water-soluble cutting solution
CN101092693A (en) * 2007-07-03 2007-12-26 启东尤希路化学工业有限公司 Environmental protective type wet skin pass rolling fluid of anti yellow spots

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291408A1 (en) * 2001-09-07 2003-03-12 Dai-Ichi Kogyo Seiyaku Co., Ltd. Nonflammable water-based cutting fluid composition
CN1548505A (en) * 2003-05-24 2004-11-24 启东尤希路化学工业有限公司 Water soluble cutting fluid
CN1730633A (en) * 2005-08-09 2006-02-08 启东尤希路化学工业有限公司 Hard water resistant water-soluble cutting solution
CN101092693A (en) * 2007-07-03 2007-12-26 启东尤希路化学工业有限公司 Environmental protective type wet skin pass rolling fluid of anti yellow spots

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王丽华,杨铁金.水基合成切削液的研制.《齐齐哈尔大学学报》.2009,第25卷(第1期),71-73. *

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