CN104532270A - INCOLOY 825 nickel-base alloy oxides cleaning agent - Google Patents
INCOLOY 825 nickel-base alloy oxides cleaning agent Download PDFInfo
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- CN104532270A CN104532270A CN201410688032.5A CN201410688032A CN104532270A CN 104532270 A CN104532270 A CN 104532270A CN 201410688032 A CN201410688032 A CN 201410688032A CN 104532270 A CN104532270 A CN 104532270A
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- nickel
- incoloy
- base alloy
- cleaning agent
- cleaning
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Abstract
A disclosed INCOLOY 825 nickel-base alloy oxides cleaning agent is composed of the following compositions in percent by volume: 15%-35% of nitric acid, 2%-10% of hydrofluoric acid, 0.05%-0.15% of a corrosion inhibitor, 0.10%-0.15% of a surfactant, and the balance water. The cleaning agent is simple in composition, stable in performances and simple in operation, helps to improve labor efficiency, and has obvious social benefit and economic benefit.
Description
Technical field
The present invention relates to field of metal surface treatment technology, particularly the cleaning of INCOLOY 825 nickel-base alloy oxide on surface.
Background technology
INCOLOY825 nickel-base alloy is a kind of general engineering alloy, all has performance that is antiacid and basic metal corrosion under oxidation and reducing environment.Erosion resistance in various medium is all fine, as acidic solution and the basic solutions such as sodium hydroxide, potassium hydroxide such as sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid and organic acids.
Nickel-base alloy hot rolling, forge hot and thermal treatment time, the baroque oxide skin of Surface Creation one deck, although very thin, very fine and close, have mortise power with matrix.
Carbon steel and conventional stainless surface chemistry cleaning relative maturity, but all can not be used for the cleaning of INCOLOY825 nickel-base alloy surface chemistry through testing these chemical cleaning technologies.
Because this alloy has excellent corrosion resistance nature, general chemistry scavenging solution is difficult to the oxide scale layer of clearing up surface.At present, all need certain surface pretreatment before the cleaning of this alloy, usually have: soda boiling, manual grinding, melting salt process.These pre-treating processs are not easy to operation, and also have certain safety problem.
After completing surface pretreatment work, adopt following matting scheme: nitric acid (d=1.42) 15% ~ 25% (volume percent), hydrofluoric acid 2% ~ 25% (volume percent), all the other are water, are heated to 50 ~ 60 DEG C, soak 1 ~ 24 hour.In this matting liquid formula for nitric acid and hydrofluoric acid concentration claimed range wider, be difficult to operation in actual applications, and do not meet specification of quality; Pickle solution must be heated to certain temperature by this pickling scheme simultaneously, and energy consumption is high, and operation easier is large.
Summary of the invention
Require high to the oxide on surface cleaning produced in INCOLOY 825 nickel-base alloy heat treatment process to pre-treatment and the problems such as cleaning complicated, scavenging period length for solving prior art, there is provided a kind of technique simple, cleaning efficiency is high, is suitable for the normal temperature chemical cleaning formula of NCOLOY825 nickel-base alloy.
The present invention is achieved through the following technical solutions: a kind of INCOLOY 825 nickel-base alloy oxide cleaning agent, by volume percentages consists of the following composition: nitric acid 15%-35%, hydrofluoric acid 2%-10%, inhibiter 0.05%-0.15%, tensio-active agent 0.10% ~ 0.15%, surplus is water.
Further, by volume percentages consists of the following composition: nitric acid 20%-30%, hydrofluoric acid 5%-8%, inhibiter 0.05%-0.10%, tensio-active agent 0.10% ~ 0.12%, and surplus is water.Nitric acid adopts concentrated nitric acid quality product percentage ratio common on market at 65%-68%, be equivalent to 16mol/L, relative density 1.4 g/ml, hydrofluoric acid adopts common hydrofluoric acid product Solute mass fraction 40% on market, be equivalent to 22.5mol/L, relative density 1.298g/ml.
Preferably, described inhibiter is Lan-826.Lan-826 is Gansu blue star cleaning Science and Technology Ltd. product.
Preferably, described tensio-active agent is OP-10.OP-10 chemical name is polyoxyethylene nonylphenol ether, is nonionogenic tenside common on market.
Beneficial effect of the present invention is: (1) operating procedure is simple, can carry out matting by soak at room temperature, not need the pretreatment procedure such as soda boiling, polishing;
(2) scavenging period is short, and efficiency is high;
(3) to base material corrodibility, little (corrosion speed is about 0.01g/m
2h);
(4) good economy performance, material source is extensive, low price
Component is simple, stable performance, operation is simple and easy improves efficiency, has obvious Social benefit and economic benefit.
Embodiment
Embodiment 1
By volume percentages, nitric acid 15%, hydrofluoric acid 2%, Lan-826 is 0.05%, OP-10 is 0.10%, and surplus is water.Embodiment 2
By volume percentages, nitric acid 35%, hydrofluoric acid 10%, Lan-826 is 0.15%, OP-10 is 0.15%, and surplus is water.Embodiment 3
By volume percentages, nitric acid 20%, hydrofluoric acid 5%, Lan-826 is 0.05%, OP-10 is 0.10%, and surplus is water.Embodiment 4
By volume percentages, nitric acid 30%, hydrofluoric acid 8%, Lan-826 is 0.10%, OP-10 is 0.12%, and surplus is water.Embodiment 5
By volume percentages, nitric acid 25%, hydrofluoric acid 7%, Lan-826 is 0.07%, OP-10 is 0.11%, and surplus is water.Experimental data
Chemical of the present invention successfully should give birth to the matting of the little R extrusion pipe sample (material: INCOLOY 825 specification: Ф 38 × 4) in vapourizing furnace project in our company's favour.
Concrete enforcement is as follows step by step:
(1) clean-out system is configured: the configuration carrying out clean-out system according to embodiment 1-5;
(2) product surface oily waste treatment: the region comparatively serious to product surface greasy dirt adopts the methods such as organic solvent to carry out immersion wipe oil, generally can not clear up;
(3) product is soaked in 1 h in this cleaning solution;
(4) take out the cleaning situation of product visual inspection oxide on surface, as found the region that oxide compound is not removed completely, continue to soak 0.5h, observe product surface, oxide compound is removed completely.And timely water is rinsed well.
Experiment proves, adopts the chemical of this cleaning formulation effectively can remove the oxide compound on nickel-base alloy surface.With clean-out system of the present invention, washing test is carried out to the little R extrusion pipe sample (material: INCOLOY 825 specification: Ф 38 × 4) in company Hui Sheng vapourizing furnace project, after 1h30min cleaning, substantially removed totally by cleaning area oxide compound.
Claims (4)
1. an INCOLOY 825 nickel-base alloy oxide cleaning agent, it is characterized in that, by volume percentages consists of the following composition: nitric acid 15%-35%, hydrofluoric acid 2%-10%, inhibiter 0.05%-0.15%, tensio-active agent 0.10% ~ 0.15%, surplus is water.
2. a kind of INCOLOY 825 nickel-base alloy oxide cleaning agent according to claim 1, it is characterized in that, by volume percentages consists of the following composition: nitric acid 20%-30%, hydrofluoric acid 5%-8%, inhibiter 0.05%-0.10%, tensio-active agent 0.10% ~ 0.12%, surplus is water.
3. a kind of INCOLOY 825 nickel-base alloy oxide cleaning agent according to claim 1 and 2, it is characterized in that, described inhibiter is Lan-826.
4. a kind of INCOLOY 825 nickel-base alloy oxide cleaning agent according to claim 1 and 2, it is characterized in that, described tensio-active agent is OP-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688032.5A CN104532270A (en) | 2014-11-25 | 2014-11-25 | INCOLOY 825 nickel-base alloy oxides cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688032.5A CN104532270A (en) | 2014-11-25 | 2014-11-25 | INCOLOY 825 nickel-base alloy oxides cleaning agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104532270A true CN104532270A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688032.5A Pending CN104532270A (en) | 2014-11-25 | 2014-11-25 | INCOLOY 825 nickel-base alloy oxides cleaning agent |
Country Status (1)
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| CN (1) | CN104532270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103512A (en) * | 2016-11-24 | 2018-06-01 | 威海翔宇环保科技股份有限公司 | A kind of preparation of indissoluble iron scale washing agent |
| CN112592777A (en) * | 2020-12-03 | 2021-04-02 | 湖北兴福电子材料有限公司 | Deep groove cleaning solution after 3D NAND structure piece dry etching |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484872A (en) * | 2012-06-15 | 2014-01-01 | 中国石油化工股份有限公司 | Pickling solution containing compounded passivating agent, and preparation method thereof |
-
2014
- 2014-11-25 CN CN201410688032.5A patent/CN104532270A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484872A (en) * | 2012-06-15 | 2014-01-01 | 中国石油化工股份有限公司 | Pickling solution containing compounded passivating agent, and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103512A (en) * | 2016-11-24 | 2018-06-01 | 威海翔宇环保科技股份有限公司 | A kind of preparation of indissoluble iron scale washing agent |
| CN112592777A (en) * | 2020-12-03 | 2021-04-02 | 湖北兴福电子材料有限公司 | Deep groove cleaning solution after 3D NAND structure piece dry etching |
| CN112592777B (en) * | 2020-12-03 | 2021-09-07 | 湖北兴福电子材料有限公司 | Deep groove cleaning solution after 3D NAND structure piece dry etching |
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Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |