CN105040019A - Copper piece oil removal method - Google Patents
Copper piece oil removal method Download PDFInfo
- Publication number
- CN105040019A CN105040019A CN201510433822.3A CN201510433822A CN105040019A CN 105040019 A CN105040019 A CN 105040019A CN 201510433822 A CN201510433822 A CN 201510433822A CN 105040019 A CN105040019 A CN 105040019A
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- copper part
- copper piece
- copper
- 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
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 18
- 239000010949 copper Substances 0.000 title claims abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 60
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000012188 paraffin wax Substances 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 21
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 20
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 19
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 19
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000005642 Oleic acid Substances 0.000 claims abstract description 19
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 19
- 241000779819 Syncarpia glomulifera Species 0.000 claims abstract description 18
- 239000001739 pinus spp. Substances 0.000 claims abstract description 18
- 229940036248 turpentine Drugs 0.000 claims abstract description 18
- 239000012459 cleaning agent Substances 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 18
- 238000002791 soaking Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005238 degreasing Methods 0.000 claims description 5
- 239000001293 FEMA 3089 Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000007605 air drying Methods 0.000 claims description 2
- 238000000643 oven drying Methods 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 235000019441 ethanol Nutrition 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 238000005498 polishing Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000002932 luster Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a copper piece oil removal method. The method comprises the steps that a copper piece is dipped in a copper piece cleanser and then is taken out to be dried. The copper piece cleanser comprises, by weight, 5-10 parts of ethyl alcohol, 1-3 parts of triethanolamine, 5-10 parts of potassium hydroxide, 5-10 parts of turpentine, 30-50 parts of paraffin, 15-35 parts of river sand and 100 parts of oleic acid. By means of the method, oil stains on the surface of a copper piece can be effectively removed, the surface of the copper piece also can be polished to a certain extent, and further the surface of the copper piece is effectively polished while oil stains of the copper piece are removed. Accordingly, the use performance of the copper piece is greatly improved, and the service life of the copper piece is prolonged.
Description
Technical Field
The invention relates to a method for removing oil stains on the surface of a machined part, in particular to a method for removing oil on a copper part.
Background
As a part material in the field of common mechanical application, a copper part is widely applied in the field of production and processing, and obviously, the copper part applied in the field of production and processing is also easily polluted by impurities such as oil stains and the like in the daily use process, so that the surface of the copper part is not clean, and meanwhile, the impurities are easily deposited on the surface of the copper part, so that the surface of the copper part is uneven, the quality of the copper part is influenced, and the copper part is easily damaged by machinery using the copper part.
Therefore, the invention provides a copper part degreasing method which can effectively clean grease on the surface of a copper part and can polish the surface of the copper part to a certain extent, so that the cleaning effect of the copper part is further improved, and the service life of the copper part is prolonged.
Disclosure of Invention
Aiming at the prior art, the invention aims to overcome the problems that in the prior art, a copper part is easily polluted by impurities such as oil stains and the like in the daily use process, so that the surface of the copper part is not clean, and simultaneously, the impurities are easily deposited on the surface of the copper part, so that the surface of the copper part is uneven, the quality of the copper part is influenced, and a machine using the copper part is easily damaged, so that the oil stains on the surface of the copper part can be effectively cleaned, the surface of the copper part can be polished to a certain extent, the cleaning effect of the copper part is further improved, and the service life of the copper part is prolonged.
In order to achieve the above object, the present invention provides a method for degreasing a copper part, wherein the method comprises: soaking the copper part in a copper part cleaning agent, taking out and drying; wherein the copper part cleaning agent comprises ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid; wherein,
relative to 100 parts by weight of the oleic acid, the ethanol content is 5-10 parts by weight, the triethanolamine content is 1-3 parts by weight, the potassium hydroxide content is 5-10 parts by weight, the turpentine oil content is 5-10 parts by weight, the paraffin content is 30-50 parts by weight, and the river sand content is 15-35 parts by weight.
According to the technical scheme, the cleaning agent is prepared by mixing ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid according to a certain proportion, and the copper piece to be cleaned is soaked in the cleaning agent, so that the cleaning agent can effectively remove oil stains on the surface of the copper piece, and can also play a certain polishing role on the surface of the copper piece, so that the surface of the copper piece is effectively polished while deoiling is carried out, the service performance of the copper piece is greatly improved, and the service life of the copper piece is prolonged.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a copper part oil removing method, which comprises the following steps: soaking the copper part in a copper part cleaning agent, taking out and drying; wherein the copper part cleaning agent comprises ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid; wherein,
relative to 100 parts by weight of the oleic acid, the ethanol content is 5-10 parts by weight, the triethanolamine content is 1-3 parts by weight, the potassium hydroxide content is 5-10 parts by weight, the turpentine oil content is 5-10 parts by weight, the paraffin content is 30-50 parts by weight, and the river sand content is 15-35 parts by weight.
According to the design, ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid are mixed according to a certain proportion to prepare the cleaning agent, and a copper part needing to be cleaned is placed in the cleaning agent to be soaked, so that the cleaning agent can effectively remove oil stains on the surface of the copper part, and can also play a certain polishing role on the surface of the copper part, so that the surface of the copper part is effectively polished while deoiling is carried out, the service performance of the copper part is greatly improved, and the service life of the copper part is prolonged.
In order to make the prepared cleaning agent have better deoiling effect and polishing effect on the surface of a copper part, in a preferred embodiment of the invention, relative to 100 parts by weight of oleic acid, the content of ethanol is 6-8 parts by weight, the content of triethanolamine is 2-3 parts by weight, the content of potassium hydroxide is 6-8 parts by weight, the content of turpentine is 6-8 parts by weight, the content of paraffin is 35-45 parts by weight, and the content of river sand is 20-30 parts by weight.
The copper part cleaning agent can be prepared according to a preparation method which is conventional in the art, for example, the raw materials can be simply mixed, and in order to ensure that the raw materials are mixed more uniformly, in another preferred embodiment of the invention, the copper part cleaning agent can be prepared by mixing and heating ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid.
Of course, the heating can be performed according to the conventional heating method in the art, and the heating temperature and time can be not further limited, and of course, in order to achieve better mixing effect and more cost saving, in a more preferred embodiment of the present invention, the heating temperature of the heating process can be further limited to 30-50 ℃, and the heating time can be further limited to 1-3 h.
The soaking time of the soaking process can be adjusted according to actual needs, for example, in a preferred embodiment of the present invention, the soaking time of the soaking process can be further selected to be 10-40 min.
In order to achieve better degreasing effect on the surface of the copper part, in a more preferred embodiment of the invention, the method may further comprise cleaning and drying the copper part after soaking.
The drying process may be performed according to a drying method conventional in the art, for example, in a preferred embodiment of the present invention, the drying process may be one or more of air drying, oven drying and sun drying. Of course, other types of drying means may be used herein, and the present invention is not limited to the above-described drying means.
The cleaning process may be performed in a manner conventional in the art, for example, in a preferred embodiment of the present invention, the cleaning process may be further selected to include sequential cleaning of the copper part with an acid solution, a base solution, and water.
The present invention will be described in detail below by way of examples. In the following examples, the ethanol, the triethanolamine, the hydrogen oxidizer, the turpentine, the paraffin, the river sand, the oleic acid, the hydrochloric acid, and the sodium hydroxide are conventional commercially available products.
Example 1
Mixing 6g of ethanol, 2g of triethanolamine, 6g of potassium hydroxide, 6g of turpentine, 35g of paraffin, 20g of river sand and 100g of oleic acid, heating to 30 ℃, and standing for 1 hour to prepare the copper part cleaning agent; and soaking the copper part in a copper part cleaning agent for 10min, taking out, washing with a hydrochloric acid solution, a sodium hydroxide solution and water in sequence, and drying to obtain a cleaned copper part A1.
Example 2
Mixing 8g of ethanol, 3g of triethanolamine, 8g of potassium hydroxide, 8g of turpentine, 45g of paraffin, 30g of river sand and 100g of oleic acid, heating to 50 ℃, and standing for 3 hours to obtain a copper part cleaning agent; and soaking the copper part in a copper part cleaning agent for 40min, taking out, washing with a hydrochloric acid solution, a sodium hydroxide solution and water in sequence, and drying to obtain a cleaned copper part A2.
Example 3
Mixing 7g of ethanol, 2g of triethanolamine, 7g of potassium hydroxide, 7g of turpentine, 40g of paraffin, 25g of river sand and 100g of oleic acid, heating to 40 ℃, and standing for 2 hours to obtain a copper part cleaning agent; and soaking the copper part in a copper part cleaning agent for 30min, taking out, washing with a hydrochloric acid solution, a sodium hydroxide solution and water in sequence, and drying to obtain a cleaned copper part A3.
Example 4
Mixing 5g of ethanol, 1g of triethanolamine, 5g of potassium hydroxide, 5g of turpentine, 30g of paraffin, 15g of river sand and 100g of oleic acid, heating to 30 ℃, and standing for 1 hour to prepare the copper part cleaning agent; and soaking the copper part in the copper part cleaning agent for 10min, taking out and drying to obtain a cleaned copper part A4.
Example 5
Mixing 10g of ethanol, 3g of triethanolamine, 10g of potassium hydroxide, 10g of turpentine, 50g of paraffin, 35g of river sand and 100g of oleic acid, heating to 50 ℃, and standing for 3 hours to obtain a copper part cleaning agent; and soaking the copper part in the copper part cleaning agent for 40min, taking out and drying to obtain a cleaned copper part A5.
Comparative example 1
The preparation was carried out according to the preparation method of example 3 except that the amount of ethanol was 2g, the amount of potassium hydroxide was 2g, the amount of turpentine was 2g, the amount of paraffin was 10g, and the amount of river sand was 5g, to obtain a cleaned copper part D1.
Comparative example 2
The preparation was carried out according to the preparation method of example 3 except that 30g of ethanol was used, 5g of triethanolamine was used, 30g of potassium hydroxide was used, 30g of turpentine was used, 80g of paraffin was used, and 50g of river sand was used, to obtain a cleaned copper part D2.
Comparative example 3
And soaking the copper part in a conventional commercially available degreasing agent produced by a tin-free torch macro energy-saving material company Limited for 30min to obtain a cleaned copper part D3.
Test example
The results of observing the surface gloss of the materials A1-A5 and D1-D3 after being taken out respectively, and then observing whether the surfaces have oily streaks by soaking the materials in water respectively are shown in Table 1.
TABLE 1
Numbering | Degree of gloss | Surface oil bloom condition |
A1 | High surface glossiness | Oil flower without naked eye |
A2 | High surface glossiness | Oil flower without naked eye |
A3 | High surface glossiness | Oil flower without naked eye |
A4 | The surface is relatively glossy | Light oil flower |
A5 | The surface is relatively glossy | Oil flower without naked eye |
D1 | The surface has no luster | Visible and obvious oil bloom |
D2 | The surface is relatively glossy | Visible and obvious oil bloom |
D3 | The surface has no luster | Light oil flower |
As can be seen from Table 1, the cleaning agent for copper parts prepared within the scope of the present invention has not only a cleaning effect on greasy dirt on the surface of copper parts not lower than that of conventional commercial products, but also an effect superior to that of conventional commercial products even within the preferred scope of the present invention, and also a polishing effect on the surface of copper parts, which is not good compared with conventional commercial products, but also does not have the good degreasing effect and does not have the polishing effect. Therefore, the copper part cleaning agent prepared by the invention can effectively remove oil stains on the surface of the copper part, and can also play a certain polishing role on the surface of the copper part, so that the surface of the copper part is effectively polished while removing oil, the service performance of the copper part is greatly improved, and the service life of the copper part is prolonged.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A method for degreasing a copper part, comprising: soaking the copper part in a copper part cleaning agent, taking out and drying; wherein the copper part cleaning agent comprises ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid; wherein,
relative to 100 parts by weight of the oleic acid, the ethanol content is 5-10 parts by weight, the triethanolamine content is 1-3 parts by weight, the potassium hydroxide content is 5-10 parts by weight, the turpentine oil content is 5-10 parts by weight, the paraffin content is 30-50 parts by weight, and the river sand content is 15-35 parts by weight.
2. The method according to claim 1, wherein the ethanol is contained in an amount of 6 to 8 parts by weight, the triethanolamine is contained in an amount of 2 to 3 parts by weight, the potassium hydroxide is contained in an amount of 6 to 8 parts by weight, the turpentine is contained in an amount of 6 to 8 parts by weight, the paraffin is contained in an amount of 35 to 45 parts by weight, and the river sand is contained in an amount of 20 to 30 parts by weight, relative to 100 parts by weight of the oleic acid.
3. The method according to claim 1 or 2, wherein the copper part cleaning agent is prepared by mixing ethanol, triethanolamine, potassium hydroxide, turpentine, paraffin, river sand and oleic acid and heating.
4. The method according to claim 3, wherein the heating temperature in the heating process is 30-50 ℃ and the heating time is 1-3 h.
5. The method according to claim 1 or 2, wherein the soaking time of the soaking process is 10-40 min.
6. The method according to claim 1 or 2, wherein the method further comprises cleaning and drying the copper piece after soaking.
7. The method of claim 6, wherein the drying process is one or more of air drying, oven drying, and sun drying.
8. The method of claim 7, wherein the cleaning process comprises sequentially cleaning the copper part with an acid solution, an alkali solution, and water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510433822.3A CN105040019A (en) | 2015-07-21 | 2015-07-21 | Copper piece oil removal method |
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CN201510433822.3A CN105040019A (en) | 2015-07-21 | 2015-07-21 | Copper piece oil removal method |
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CN201510433822.3A Pending CN105040019A (en) | 2015-07-21 | 2015-07-21 | Copper piece oil removal method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111690960A (en) * | 2020-05-06 | 2020-09-22 | 杭州临安兴旺电镀有限公司 | Electroplating method of corrosion-resistant and wear-resistant workpiece |
CN111979549A (en) * | 2020-08-26 | 2020-11-24 | 沈阳永清环保科技有限公司 | Environment-friendly vibration grinding polishing decoration liquid for copper and copper alloy materials and preparation method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101818340A (en) * | 2009-02-27 | 2010-09-01 | 中国第一汽车集团公司 | Antirust liquid for inner chamber of part |
CN103668258A (en) * | 2013-11-29 | 2014-03-26 | 江苏帕齐尼铜业有限公司 | Surface treating agent for copper and copper alloys |
CN104726218A (en) * | 2015-01-28 | 2015-06-24 | 上海金兆节能科技有限公司 | Cleaning agent composition and preparation method thereof as well as environment-friendly metal cleaning agent prepared from cleaning agent composition |
-
2015
- 2015-07-21 CN CN201510433822.3A patent/CN105040019A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101818340A (en) * | 2009-02-27 | 2010-09-01 | 中国第一汽车集团公司 | Antirust liquid for inner chamber of part |
CN103668258A (en) * | 2013-11-29 | 2014-03-26 | 江苏帕齐尼铜业有限公司 | Surface treating agent for copper and copper alloys |
CN104726218A (en) * | 2015-01-28 | 2015-06-24 | 上海金兆节能科技有限公司 | Cleaning agent composition and preparation method thereof as well as environment-friendly metal cleaning agent prepared from cleaning agent composition |
Non-Patent Citations (1)
Title |
---|
张顺意: "除锈和防锈", <<现代化农业>> * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111690960A (en) * | 2020-05-06 | 2020-09-22 | 杭州临安兴旺电镀有限公司 | Electroplating method of corrosion-resistant and wear-resistant workpiece |
CN111979549A (en) * | 2020-08-26 | 2020-11-24 | 沈阳永清环保科技有限公司 | Environment-friendly vibration grinding polishing decoration liquid for copper and copper alloy materials and preparation method thereof |
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