CN105478321A - Surface rust prevention pretreatment solution for metal casting - Google Patents
Surface rust prevention pretreatment solution for metal casting Download PDFInfo
- Publication number
- CN105478321A CN105478321A CN201510844025.4A CN201510844025A CN105478321A CN 105478321 A CN105478321 A CN 105478321A CN 201510844025 A CN201510844025 A CN 201510844025A CN 105478321 A CN105478321 A CN 105478321A
- Authority
- CN
- China
- Prior art keywords
- metal casting
- acid
- antirust
- preprocessing solution
- casting surface
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
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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
- C23C22/34—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 fluorides or complex fluorides
- C23C22/36—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 fluorides or complex fluorides containing also phosphates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
Abstract
The invention discloses a surface rust prevention pretreatment solution for a metal casting. The pretreatment solution comprises 200-250 mL/L of phosphoric acid, 2.0-3.0 g/L of potassium fluozirconate, 35-50 g/L of zinc oxide, 10-20 mL/L of nitric acid, 25-40 mL/L of phytic acid, 2.0-3.0 g/L of citric acid, 4-6 mL/L of an emulsifying agent, epoxy group silane and a moderate amount of an initiator. The pretreatment solution is a water-based treatment agent for pretreatment before metal surface coating; disadvantages of the prior art are overcome; the solution is stable; the technology control process is simple; the corrosion resistance is excellent; at the same time, heavy metal ions are reduced; the VOC content is low; little pollution is caused; the efficiency is high; and the application range is wide.
Description
Technical field
The present invention relates to metal material technical field of anticorrosion, be specifically related to the antirust preprocessing solution in a kind of metal casting surface.
Background technology
Metal erosion is the very severe problem of current national economy every field one of facing, and the loss that the whole world causes because of metal erosion is every year up to more than one hundred billion dollar.In order to reach the object of Metal surface anti-corrosion, usually at coating metal surfaces coating, metal and external environment being completely cut off, thus reduces corrosion of metal.Steel surface eliminates rust, the normal method adopting single physics or chemistry, mainly adopts derusting by sandblasting and strong acid pickling rust cleaning in the past.Derusting by sandblasting investment is large, and cost is high, labour intensity is large, contaminated environment, and strong acid pickling easily produces excessive erosion, often generate secondary rust after pickling, a large amount of steel equipments is chronically exposed in air. be corroded at a terrific speed, in the derusting anti-corrosive method had, containing unstable 12 system tomb sodium sulphate in the rust removing solution of employing, so the stability of rust removing solution is not high, and rust cleaning speed is unhappy, adopt cleaning in addition, it is relatively good that the equal ubiquities of method such as brushing remove metal surface corrosion, but descaling is not thorough, particularly remove new steel surface compact oxidation layer more difficult, complex process and and the required time long, want temperature control, result is unsatisfactory, oxide skin is except thousand only not reaching and require standard, in order to effectively remove iron and steel compact oxidation layer, current large-scale component all adopts river " sandblasting " process, but equipment, the investment such as factory building needs hundreds thousand of to 1,000,000 and with water, electricity, air compressor, lay airduct. install electric wiring, make shape abrasive blast equipment. with quartz sand, even steel sand sprays, air pollution is very serious, labour protection requires tight, cost is high, labour intensity is large.
Summary of the invention
For the deficiencies in the prior art, the invention provides the antirust preprocessing solution in a kind of metal casting surface, overcome the deficiencies in the prior art, solution-stabilized, process control procedure is simple, corrosion resistance is good, lowers heavy metal ion, low VOC simultaneously, pollutes Water based treatment agent for pretreatment before metal surface coating little, that efficiency is high, applied widely.
Technical problem to be solved by this invention can be come to be realize by the following technical programs:
The antirust preprocessing solution in a kind of metal casting surface, described preprocessing solution is made up of phosphoric acid 200-250mL/L, potassium fluorozirconate 2.0-3.0g/L, zinc oxide 35-50g/L, nitric acid 10-20mL/L, phytic acid 25-40mL/L, citric acid 2.0-3.0g/L, emulsifying agent 4-6mL/L, epoxy radicals silicone hydride and appropriate initator.
Described phosphoric acid 200mL/L, potassium fluorozirconate 2.0g/L, zinc oxide 35g/L, nitric acid 10mL/L, phytic acid 25mL/L, citric acid 2.0g/L, emulsifying agent 4mL/L.
Described epoxy radicals silicone hydride of stating is 3-glycidoxypropyltrime,hoxysilane, 3-glycidoxypropyl group triethoxysilane, trimethoxy silane or triethoxysilane.
Described epoxy radicals silicone hydride of stating is vinyltrimethoxy silane, VTES or vinyltriacetoxy silane.
Described initator is potassium persulfate, benzoyl peroxide, methyl ethyl ketone peroxide or DMA.
Compared with prior art, beneficial effect of the present invention is:
The present invention is solution-stabilized, and process control procedure is simple, and corrosion resistance is good, lowers heavy metal ion, low VOC simultaneously, pollutes Water based treatment agent for pretreatment before metal surface coating little, that efficiency is high, applied widely.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1 one kinds of antirust preprocessing solutions in metal casting surface, described preprocessing solution is made up of phosphoric acid 220mL/L, potassium fluorozirconate 2.5g/L, zinc oxide 40g/L, nitric acid 15mL/L, phytic acid 30mL/L, citric acid 2.5g/L, emulsifying agent 5mL/L, epoxy radicals silicone hydride and appropriate initator; Described epoxy radicals silicone hydride of stating is 3-glycidoxypropyltrime,hoxysilane, 3-glycidoxypropyl group triethoxysilane, trimethoxy silane or triethoxysilane.Described initator is potassium persulfate, benzoyl peroxide, methyl ethyl ketone peroxide or DMA.
Embodiment 2 one kinds of antirust preprocessing solutions in metal casting surface, described preprocessing solution is made up of phosphoric acid 200mL/L, potassium fluorozirconate 2.0g/L, zinc oxide 35g/L, nitric acid 10mL/L, phytic acid 25mL/L, citric acid 2.0g/L, emulsifying agent 4mL/L, epoxy radicals silicone hydride and appropriate initator; Described epoxy radicals silicone hydride of stating is vinyltrimethoxy silane, VTES or vinyltriacetoxy silane; Described initator is potassium persulfate, benzoyl peroxide, methyl ethyl ketone peroxide or DMA.
Have for the test event of pretreating agent sample before the environment-friendly metal application prepared by the present embodiment: hundred lattice tests after (1) application, with reference to CNS GB-1720-85; (2) the shock resistance test after application, with reference to the 50cm.kg test in CNS GB/T1732-93; (3) the corrosion resistance test after application, with reference to 500 hours neutral salt spray tests listed in CNS GB/T1771-91.
The result of carrying out testing for above embodiment is:
| Adhesion performance | Shock resistance 50cm.kg | Corrosion resisting property mm/500h | |
| Embodiment 1 | 1 grade | Coating flawless, to come off | 1.2mm/ |
| Embodiment 2 | 1 grade | Coating flawless, to come off | 1.1mm/ |
As can be seen from table 1 above, the adhesive force after pretreating agent is applied in the enterprising row relax application of foundry goods before environment-friendly metal application of the present invention can reach 1 grade, and impact resistance can reach 55cm.kg.
It should be noted that, in this article, such as term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. the antirust preprocessing solution in metal casting surface, it is characterized in that, described preprocessing solution is made up of phosphoric acid 200-250mL/L, potassium fluorozirconate 2.0-3.0g/L, zinc oxide 35-50g/L, nitric acid 10-20mL/L, phytic acid 25-40mL/L, citric acid 2.0-3.0g/L, emulsifying agent 4-6mL/L, epoxy radicals silicone hydride and appropriate initator.
2. the antirust preprocessing solution in a kind of metal casting surface according to claim 1, it is characterized in that, described phosphoric acid 200mL/L, potassium fluorozirconate 2.0g/L, zinc oxide 35g/L, nitric acid 10mL/L, phytic acid 25mL/L, citric acid 2.0g/L, emulsifying agent 4mL/L.
3. the antirust preprocessing solution in a kind of metal casting surface according to claim 1, it is characterized in that, described epoxy radicals silicone hydride of stating is 3-glycidoxypropyltrime,hoxysilane, 3-glycidoxypropyl group triethoxysilane, trimethoxy silane or triethoxysilane.
4. the antirust preprocessing solution in a kind of metal casting surface according to claim 1, it is characterized in that, described epoxy radicals silicone hydride of stating is vinyltrimethoxy silane, VTES or vinyltriacetoxy silane.
5. the antirust preprocessing solution in a kind of metal casting surface according to claim 1, it is characterized in that, described initator is potassium persulfate, benzoyl peroxide, methyl ethyl ketone peroxide or DMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844025.4A CN105478321A (en) | 2015-11-25 | 2015-11-25 | Surface rust prevention pretreatment solution for metal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844025.4A CN105478321A (en) | 2015-11-25 | 2015-11-25 | Surface rust prevention pretreatment solution for metal casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105478321A true CN105478321A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510844025.4A Pending CN105478321A (en) | 2015-11-25 | 2015-11-25 | Surface rust prevention pretreatment solution for metal casting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222639A (en) * | 2016-08-17 | 2016-12-14 | 安徽红桥金属制造有限公司 | A kind of antirust preprocessing solution of spring steel cast(ing) surface |
| CN107511313A (en) * | 2017-07-28 | 2017-12-26 | 安徽宏润工艺品有限公司 | A kind of antirusting treating method of ironwork |
| CN107630212A (en) * | 2016-07-18 | 2018-01-26 | 天津市澳路浦润滑科技股份有限公司 | A kind of composite membrane antirust agent |
| CN112301337A (en) * | 2020-10-24 | 2021-02-02 | 安徽省含山县皖中减速机械有限公司 | Production process for prolonging service life of speed reducer gear |
-
2015
- 2015-11-25 CN CN201510844025.4A patent/CN105478321A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630212A (en) * | 2016-07-18 | 2018-01-26 | 天津市澳路浦润滑科技股份有限公司 | A kind of composite membrane antirust agent |
| CN106222639A (en) * | 2016-08-17 | 2016-12-14 | 安徽红桥金属制造有限公司 | A kind of antirust preprocessing solution of spring steel cast(ing) surface |
| CN106222639B (en) * | 2016-08-17 | 2018-07-13 | 安徽红桥金属制造有限公司 | A kind of spring steel cast(ing) surface antirust preprocessing solution |
| CN107511313A (en) * | 2017-07-28 | 2017-12-26 | 安徽宏润工艺品有限公司 | A kind of antirusting treating method of ironwork |
| CN107511313B (en) * | 2017-07-28 | 2021-04-02 | 安徽宏润工艺品有限公司 | Rust-proof treatment method for ironwork |
| CN112301337A (en) * | 2020-10-24 | 2021-02-02 | 安徽省含山县皖中减速机械有限公司 | Production process for prolonging service life of speed reducer gear |
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Application publication date: 20160413 |