CN105420727A - Anticorrosion treatment process of zinc alloy die casting - Google Patents
Anticorrosion treatment process of zinc alloy die casting Download PDFInfo
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- CN105420727A CN105420727A CN201510843961.3A CN201510843961A CN105420727A CN 105420727 A CN105420727 A CN 105420727A CN 201510843961 A CN201510843961 A CN 201510843961A CN 105420727 A CN105420727 A CN 105420727A
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- zinc alloy
- anticorrosion treatment
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- derusting
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/48—Ion implantation
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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
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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
- C23C22/364—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 containing also manganese cations
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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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
- C23C8/12—Oxidising using elemental oxygen or ozone
Abstract
The invention discloses an anticorrosion treatment process of a zinc alloy die casting. The anticorrosion treatment process comprises the steps that firstly, derusting activation is carried out; secondly, the zinc alloy die casting is treated in an anticorrosion treatment solution of 20-25 DEG C for 5-15 minutes, and the zinc alloy die casting is directly put in a blackening tank without acid pickling after being washed; thirdly, a normal-temperature blackened workpiece is taken out of tank liquor; fourthly, the workpiece treated in the third step is soaked or cleaned through clean water, and the workpiece is cleaned and soaked before being subjected to chemical deoiling and derusting; fifthly, after pretreatment and sufficient cleaning, an insoluble complexing layer is formed on the surface of aluminum alloy, and a metal oxide layer is formed on the surface of aluminum alloy; and sixthly, the metal oxide layer is coated with undercoat. Derusting during procedures is achieved, and the trouble of later deoiling is eliminated; meanwhile, the workpiece is kept clean and is convenient to store, and the workpiece needs to be free of oil and rust before being utilized; and after the derusting period ends, if a derusting layer needs to be removed, cleaning can be carried out at medium temperature through an alkaline water-based cleaning agent, and great convenience is achieved.
Description
Technical field
The present invention relates to metallic substance technical field of anticorrosion, be specifically related to a kind of zinc alloy diecasting anticorrosion treatment technology.
Background technology
The develop rapidly of China's machinofacture processing industry, particularly after China joined WTO, China has become the important base of international mechanical workout, therefore, to composition mechanical means each type component material, functional, preservative property are even ornamental, is proposed higher requirement.The method of originally brushing paint on foundry goods is out of favour, and paint can cover flaw in casting, hole, and the technique introduced below will receive an acclaim.Foundry goods is due to the singularity of manufacturing process, the easy corrosion of cast(ing) surface, process is difficult to after getting rusty, if do not drawn attention, not only the rust protection ability of workpiece is poor, ornamental also bad, to this lot of enterprise while foundry goods being proposed to higher solidity to corrosion requirement, the working conditions different according to foundry goods, requires to carry out room temperature blackening, bonderizing and other special antirust treatment to foundry goods (cast iron, cast steel).
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of zinc alloy diecasting anticorrosion treatment technology, overcome the deficiencies in the prior art, not only serve the antirust of inter process, the trouble of oil removing after also eliminating, also maintain workpiece clean simultaneously, conveniently deposit, just workpiece needs without oil rustless before use, after rust-proof life terminates, as removed rustproof layer, in alkali aqueous cleaning agent, temperature is cleaned, more convenient.
Technical problem to be solved by this invention can be come to be realize by the following technical programs:
A kind of zinc alloy diecasting anticorrosion treatment technology, the first step rust cleaning activation, eliminating rust is occurred clean for its surface treatment to gloss by the mode of tumbling, sandblasting, polishing, polishing, then cleans through water;
Second step zinc alloy diecasting processes 5-15 minute in 20-25 DEG C of rotproofing solution, directly enters blackout groove after washing without pickling, realizes pickling-free room temperature blackening, is conducive to environmental protect and improves work efficiency;
3rd step, after room temperature blackening part takes out from tank liquor, the chemical reaction of its upper layer is not finally completed, placement 24 hours under the effect of oxygen in atmosphere;
4th step, then the workpiece that processes of the 3rd step by soak with clean water or cleaning before workpiece carries out electrochemical deoiling rust cleaning, first workpiece cleaned, soak;
5th step, adopts ion implantation mode to inject zirconium phosphate, silicon-dioxide, chromic acid chromium and Sodium Silicofluoride in aluminum alloy surface after fully cleaning and form the insoluble network layers altogether that thickness is 60-70nm after pre-treatment; Metal oxide layer is formed again in aluminum alloy surface;
6th step, then the priming paint being coated with that on metal oxide layer thickness is 230-250nm.
Described blackening agent for surface adds 5-6 times of water and is diluted to working fluid, and pH value is 2-2.5, and workpiece was generally mixed several times at 1-3 minute by the time of process, depending on the black even film layer of workpiece surface.
Described rotproofing solution is made up of acid manganous phosphate 20-30 part, primary zinc phosphate 20-30 part, potassium fluozirconate 1-3 part, phytic acid 1-3 part, citric acid 3-5 part, emulsifying agent 0.5-1 part, vinyl silanes 1-2 part, epoxy radicals silicone hydride 2-4 part and appropriate Phosphating Accelerant.
Described acid manganous phosphate 25 parts, primary zinc phosphate 25 parts, potassium fluozirconate 2 parts, phytic acid 2 parts, citric acid 4 parts, emulsifying agent 0.8 part, vinyl silanes 1.5 parts, epoxy radicals silicone hydride 3 parts.
Described Phosphating Accelerant is oxymuriate, hydrogen peroxide or organic nitro-compound.
Compared with prior art, beneficial effect of the present invention is:
The present invention not only serves the antirust of inter process, the trouble of oil removing after also eliminating, and also maintains workpiece clean simultaneously, conveniently deposit, just workpiece needs without oil rustless before use, after rust-proof life terminates, as removed rustproof layer, in alkali aqueous cleaning agent, temperature is cleaned, more convenient.
Embodiment
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.
A kind of zinc alloy diecasting anticorrosion treatment technology, the first step rust cleaning activation, eliminating rust is occurred clean for its surface treatment to gloss by the mode of tumbling, sandblasting, polishing, polishing, then cleans through water;
Second step zinc alloy diecasting processes 5-15 minute in 20-25 DEG C of rotproofing solution, directly enters blackout groove after washing without pickling, realizes pickling-free room temperature blackening, is conducive to environmental protect and improves work efficiency; Described rotproofing solution is made up of acid manganous phosphate 20-30 part, primary zinc phosphate 20-30 part, potassium fluozirconate 1-3 part, phytic acid 1-3 part, citric acid 3-5 part, emulsifying agent 0.5-1 part, vinyl silanes 1-2 part, epoxy radicals silicone hydride 2-4 part and appropriate Phosphating Accelerant; Described Phosphating Accelerant is oxymuriate, hydrogen peroxide or organic nitro-compound.
3rd step, after room temperature blackening part takes out from tank liquor, the chemical reaction of its upper layer is not finally completed, placement 24 hours under the effect of oxygen in atmosphere;
4th step, then the workpiece that processes of the 3rd step by soak with clean water or cleaning before workpiece carries out electrochemical deoiling rust cleaning, first workpiece cleaned, soak;
5th step, adopts ion implantation mode to inject zirconium phosphate, silicon-dioxide, chromic acid chromium and Sodium Silicofluoride in aluminum alloy surface after fully cleaning and form the insoluble network layers altogether that thickness is 60-70nm after pre-treatment; Metal oxide layer is formed again in aluminum alloy surface;
6th step, then the priming paint being coated with that on metal oxide layer thickness is 230-250nm.
Described blackening agent for surface adds 5-6 times of water and is diluted to working fluid, and pH value is 2-2.5, and workpiece was generally mixed several times at 1-3 minute by the time of process, depending on the black even film layer of workpiece surface.
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. a zinc alloy diecasting anticorrosion treatment technology, is characterized in that: the first step rust cleaning activation, eliminates rust to be occurred clean for its surface treatment to gloss by the mode of tumbling, sandblasting, polishing, polishing, then cleans through water;
Second step zinc alloy diecasting processes 5-15 minute in 20-25 DEG C of rotproofing solution, directly enters blackout groove after washing without pickling;
3rd step, after room temperature blackening part takes out from tank liquor, the chemical reaction of its upper layer is not finally completed, placement 24 hours under the effect of oxygen in atmosphere;
4th step, then the workpiece that processes of the 3rd step by soak with clean water or cleaning before workpiece carries out electrochemical deoiling rust cleaning, first workpiece cleaned, soak;
5th step, adopts ion implantation mode to inject zirconium phosphate, silicon-dioxide, chromic acid chromium and Sodium Silicofluoride in aluminum alloy surface after fully cleaning and form the insoluble network layers altogether that thickness is 60-70nm after pre-treatment; Metal oxide layer is formed again in aluminum alloy surface;
6th step, then the priming paint being coated with that on metal oxide layer thickness is 230-250nm.
2. a kind of zinc alloy diecasting anticorrosion treatment technology according to claim 1, it is characterized in that, described blackening agent for surface adds 5-6 times of water and is diluted to working fluid, and pH value is 2-2.5, workpiece was generally mixed several times at 1-3 minute, depending on the black even film layer of workpiece surface by the time of process.
3. a kind of zinc alloy diecasting anticorrosion treatment technology according to claim 1, it is characterized in that, described rotproofing solution is made up of acid manganous phosphate 20-30 part, primary zinc phosphate 20-30 part, potassium fluozirconate 1-3 part, phytic acid 1-3 part, citric acid 3-5 part, emulsifying agent 0.5-1 part, vinyl silanes 1-2 part, epoxy radicals silicone hydride 2-4 part and appropriate Phosphating Accelerant.
4. a kind of zinc alloy diecasting anticorrosion treatment technology according to claim 3, it is characterized in that, described acid manganous phosphate 25 parts, primary zinc phosphate 25 parts, potassium fluozirconate 2 parts, phytic acid 2 parts, citric acid 4 parts, emulsifying agent 0.8 part, vinyl silanes 1.5 parts, epoxy radicals silicone hydride 3 parts.
5. a kind of zinc alloy diecasting anticorrosion treatment technology according to claim 3, is characterized in that, described Phosphating Accelerant is oxymuriate, hydrogen peroxide or organic nitro-compound.
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| CN201510843961.3A CN105420727A (en) | 2015-11-25 | 2015-11-25 | Anticorrosion treatment process of zinc alloy die casting |
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| CN201510843961.3A CN105420727A (en) | 2015-11-25 | 2015-11-25 | Anticorrosion treatment process of zinc alloy die casting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734892A (en) * | 2017-10-30 | 2018-02-23 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN110977352A (en) * | 2019-12-19 | 2020-04-10 | 黄石市高耐斯热工设备有限公司 | Processing technology of anti-corrosion tube plate for shell-and-tube heat exchanger |
| CN114990538A (en) * | 2022-08-04 | 2022-09-02 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734892A (en) * | 2017-10-30 | 2018-02-23 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN110977352A (en) * | 2019-12-19 | 2020-04-10 | 黄石市高耐斯热工设备有限公司 | Processing technology of anti-corrosion tube plate for shell-and-tube heat exchanger |
| CN114990538A (en) * | 2022-08-04 | 2022-09-02 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
| CN114990538B (en) * | 2022-08-04 | 2022-11-25 | 山东一立动力科技股份有限公司 | Aluminum alloy surface blackening treatment method |
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