CN106544659A - A kind of iron and steel room temperature blackening agent and preparation method thereof - Google Patents
A kind of iron and steel room temperature blackening agent and preparation method thereof Download PDFInfo
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- CN106544659A CN106544659A CN201611022787.7A CN201611022787A CN106544659A CN 106544659 A CN106544659 A CN 106544659A CN 201611022787 A CN201611022787 A CN 201611022787A CN 106544659 A CN106544659 A CN 106544659A
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- iron
- room temperature
- blackening agent
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Classifications
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
Abstract
The invention provides a kind of iron and steel room temperature blackening agent and preparation method thereof, wherein iron and steel room temperature blackening agent are formed using the preparation of raw material of following weight portion：1～3 part of copper sulphate pentahydrate；3～5 parts of sodium dihydrogen phosphate；1～2 part of sodium thiosulfate；5～10 parts of tannic acid；10 0.5～1 part of OP；1000 parts of water.It is first that tannic acid is soluble in water during preparation, copper sulphate pentahydrate, sodium dihydrogen phosphate and sodium thiosulfate are added, after being eventually adding 10 stirring and evenly mixings of OP.Convenient post-treatment before when carrying out blackening using the iron and steel room temperature blackening agent of the present invention, nigrescence film layer is fine and close and adhesive force is good, and color and luster is evenly distributed.
Description
Technical field
The present invention relates to chemical products preparation method technical field, more particularly to a kind of preparation of iron and steel room temperature blackening agent.
Background technology
Blackening agent for iron and steel surface refers to the medicament that blackening process is carried out in steel surface, is for the anticorrosive property for increasing iron and steel
Energy.Generally, iron and steel is all to be processed to various practical instruments, and various securing members after heat treatment, still need to one plating
Zinc or blackening process, to increase the Corrosion Protection of workpiece.
Traditional blackening is that alkaline high temperature blacks, but as its working condition is severe, efficiency is low, is gradually washed in a pan
Eliminate, be more now that, using Chemical Colouring of Steel at Room Temperature technique, its solution-stabilized, time that blacks is short, convenient and simple using technique, but its
Nigrescence film layer is loose, and adhesive force is low, and color and luster is uneven, and pre-treatment and post processing are complicated, and the metallic selenium for adding is expensive and contains
Severe toxicity.
The content of the invention
The present invention provides a kind of iron and steel room temperature blackening agent, when carrying out Chemical Colouring of Steel at Room Temperature technique using this blackening agent for surface before and after locate
Reason is convenient, good without metallic selenium, low cost, and adhesive force, and nigrescence film layer is fine and close, and color and luster is evenly distributed.The present invention is also provided
The preparation method of this iron and steel room temperature blackening agent.
A kind of iron and steel room temperature blackening agent of the offer of the present invention, is formed by the preparation of raw material of following weight portion：
1～3 part of copper sulphate pentahydrate；
3～5 parts of sodium dihydrogen phosphate；
1～2 part of sodium thiosulfate；
5～10 parts of tannic acid；
0.5～1 part of OP-10；
1000 parts of water.
Preferably, the iron and steel room temperature blackening agent each component consumption is：
2 parts of copper sulphate pentahydrate；
4 parts of sodium dihydrogen phosphate；
1.5 parts of sodium thiosulfate；
7.5 parts of tannic acid；
0.8 part of OP-10；
1000 parts of water.
The present invention also provides the preparation method of above-mentioned iron and steel room temperature blackening agent, comprises the steps：
Step 1, adds the water of half formula proportion, heat temperature raising in reactor；
Step 2, question response kettle water temperature appreciate 40 DEG C when stop heating, keep constant temperature, by formula proportion add tannic acid, treat tannin
Acid stands after being completely dissolved and is then turned within 5 minutes stirring；
Step 3, during reactor is stirred presses formula proportion and adds copper sulphate pentahydrate, sodium dihydrogen phosphate and thiosulfuric acid
Sodium, stops stirring, obtains mixed solution after mixing；
Step 4, the OP-10 of formula proportion is added in the water of other half formula proportion, is added into step 3 after mixing
In mixed solution and stirring and evenly mixing, after its mixing natural cooling can iron and steel room temperature blackening agent.
The iron and steel room temperature blackening agent that the present invention is provided is 20～30 DEG C using temperature, and the time that blacks is 5～8 minutes.
Chemical Colouring of Steel at Room Temperature technological process of the present invention is：Deoil → eliminate rust → wash → iron and steel room temperature blackening agent room temperature blackening
→ washing → be dried.
Specific embodiment
The present invention, but it can be further well understood to by the specific embodiment and comparative example of invention now given below
Be not limitation of the invention.
Embodiment 1
Iron and steel room temperature blackening agent each component consumption selects as follows：
1 part of copper sulphate pentahydrate；
3 parts of sodium dihydrogen phosphate；
1 part of sodium thiosulfate；
5 parts of tannic acid；
0.5 part of OP-10；
1000 parts of water.
It is prepared according to the following steps iron and steel room temperature blackening agent：
Step 1, adds 500 parts of water, heat temperature raising in reactor；
Step 2, question response kettle water temperature appreciate 40 DEG C when stop heating, keep constant temperature, add 5 parts of tannic acids, treat that tannic acid is complete
Stand after dissolving and be then turned within 5 minutes stirring；
Step 3, adds 1 part of copper sulphate pentahydrate, 3 parts of sodium dihydrogen phosphate and 1 part of sodium thiosulfate during reactor is stirred,
Stop stirring after mixing, obtain mixed solution；
Step 4,0.5 part of OP-10 is added in 500 parts of other water, in adding the mixed solution into step 3 and is stirred after mixing
Mixing is mixed, natural cooling can obtain iron and steel room temperature blackening agent after its mixing.
Embodiment 2
Embodiment 2 is compared with embodiment 1, and simply each component content is different.In embodiment 2, each group consumption is：
3 parts of copper sulphate pentahydrate；
5 parts of sodium dihydrogen phosphate；
2 parts of sodium thiosulfate；
10 parts of tannic acid；
1 part of OP-10；
1000 parts of water.
Embodiment 3
Embodiment 3 is compared with embodiment 1, and simply each component content is different.In embodiment 3, each component weight content is：
2 parts of copper sulphate pentahydrate；
4 parts of sodium dihydrogen phosphate；
1.5 parts of sodium thiosulfate；
7.5 parts of tannic acid；
0.8 part of OP-10；
1000 parts of water.
Comparative example 1
Blackening agent for iron and steel surface is prepared by the raw material of following weight parts：
3 parts of copper sulphate pentahydrate；
2 parts of ammonium molybdate；
2 parts of nickel nitrate；
20 parts of phosphate dihydrogen manganese；
3 parts of triammonium citrate；
1 part of OP-10；
1000 parts of water.
Blackening agent for surface prepared by above-described embodiment 1-3 and comparative example 1 is used for into steel blackening, black film is tested,
Test result is shown in Table 1.
Table 1
By table 1, relative to comparative example 1, film thickness is suitable for present embodiment, but film adhesive force and corrosion resistance are remote high
In comparative example 1.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Claims (3)
1. a kind of iron and steel room temperature blackening agent, it is characterised in that formed by the preparation of raw material of following weight portion：
1～3 part of copper sulphate pentahydrate；
3～5 parts of sodium dihydrogen phosphate；
1～2 part of sodium thiosulfate；
5～10 parts of tannic acid；
0.5～1 part of OP-10；
1000 parts of water.
2. a kind of iron and steel room temperature blackening agent as described in claim 1, it is characterised in that each component consumption is：
2 parts of copper sulphate pentahydrate；
4 parts of sodium dihydrogen phosphate；
1.5 parts of sodium thiosulfate；
7.5 parts of tannic acid；
0.8 part of OP-10；
1000 parts of water.
3. a kind of preparation method of the iron and steel room temperature blackening agent as described in claim 1 or 2, it is characterised in that including following step
Suddenly：
Step 1, adds the water of half formula proportion, heat temperature raising in reactor；
Step 2, question response kettle water temperature stop heating when rising to 40 DEG C, keep constant temperature, add tannic acid by formula proportion, treat tannin
Acid stands after being completely dissolved and is then turned within 5 minutes stirring；
Step 3, during reactor is stirred presses formula proportion and adds copper sulphate pentahydrate, sodium dihydrogen phosphate and thiosulfuric acid
Sodium, stops stirring, obtains mixed solution after mixing；
Step 4, the OP-10 of formula proportion is added in the water of other half formula proportion, is added into step 3 after mixing
In mixed solution and stirring and evenly mixing, after its mixing natural cooling can iron and steel room temperature blackening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022787.7A CN106544659A (en) | 2016-11-21 | 2016-11-21 | A kind of iron and steel room temperature blackening agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022787.7A CN106544659A (en) | 2016-11-21 | 2016-11-21 | A kind of iron and steel room temperature blackening agent and preparation method thereof |
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| CN106544659A true CN106544659A (en) | 2017-03-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011117A (en) * | 2010-12-02 | 2011-04-13 | 合肥华清金属表面处理有限责任公司 | Environmental-friendly room-temperature steel blackening agent and preparation method thereof |
| CN102021548A (en) * | 2010-12-18 | 2011-04-20 | 江苏德美科技有限公司 | Blackening agent used for steel and iron surface at room temperature and preparation method for blackening agent at room temperature |
| CN103290400A (en) * | 2013-05-24 | 2013-09-11 | 湖南大学 | Self-healing environment-friendly type steel normal-temperature blackening agent |
| CN103849868A (en) * | 2014-02-14 | 2014-06-11 | 浙江工业大学 | Blackening liquid for chromium-free titanium-zinc panel surface and using method of blackening liquid |
-
2016
- 2016-11-21 CN CN201611022787.7A patent/CN106544659A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011117A (en) * | 2010-12-02 | 2011-04-13 | 合肥华清金属表面处理有限责任公司 | Environmental-friendly room-temperature steel blackening agent and preparation method thereof |
| CN102021548A (en) * | 2010-12-18 | 2011-04-20 | 江苏德美科技有限公司 | Blackening agent used for steel and iron surface at room temperature and preparation method for blackening agent at room temperature |
| CN103290400A (en) * | 2013-05-24 | 2013-09-11 | 湖南大学 | Self-healing environment-friendly type steel normal-temperature blackening agent |
| CN103849868A (en) * | 2014-02-14 | 2014-06-11 | 浙江工业大学 | Blackening liquid for chromium-free titanium-zinc panel surface and using method of blackening liquid |
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Application publication date: 20170329 |
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