CN109778256A - A kind of high-performance non-cyanide alkali zincincation - Google Patents
A kind of high-performance non-cyanide alkali zincincation Download PDFInfo
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- CN109778256A CN109778256A CN201711116979.9A CN201711116979A CN109778256A CN 109778256 A CN109778256 A CN 109778256A CN 201711116979 A CN201711116979 A CN 201711116979A CN 109778256 A CN109778256 A CN 109778256A
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- Prior art keywords
- cyanide
- zincincation
- electroplating
- electroplate liquid
- alkali
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- Electroplating And Plating Baths Therefor (AREA)
Abstract
Invention provides a kind of high-performance non-cyanide alkali zincincation, belongs to electroplating technology.The electroplate liquid mainly includes complexing agent, main salt, conductive salt, brightener, and pH value is 9.0~11.0.For the problem that existing alkaline galvanizing technology, plating solution usually contains cyanide and causes environmental pollution, and the present invention provides a kind of environment-protective process of electrogalvanizing by a kind of non-cyanide alkali zincincation.The electroplate liquid can be widely applied to field of electroplating without cyanide, zinc coat and the strong advantage of basal body binding force.
Description
Technical field
The present invention relates to a kind of electroplating technologies, more particularly to a kind of high-performance non-cyanide alkali zincincation.
Background technique
Industrialized development, problem of environmental pollution is increasingly severe, for protecting environment, cleaning, environmental protection, energy-efficient production
Increasingly by the attention of industry.In electroplating industry cyanide zinc plating wastewater technique, production process must use cyanide cyanide zinc plating wastewater work
Skill, there is the cyanides of hypertoxicity, its environmental pollution is extremely serious, cause to seriously threaten to worker's health；With
The enhancing of the environmental consciousness of people, an urgent demand develop the zincincation of environment-protecting clean, substitute traditional cyanide zincincation.
Therefore, develop new environment-friendly galvanizing technique, solve the health problem of problem of environmental pollution and direct labor, there is positive society
Meaning.In fact, countries in the world carry out the research and development to cyanideless electro-plating in electroplating technology always, and with correlation
The progress of technology and new electroplating additive enter market, and the level of cyanogenless electroplating technology is stepping up.
Summary of the invention
In view of this, being applied in electrogalvanizing production, zinc the invention proposes a kind of high-performance non-cyanide alkali zincincation
Layer well can achieve the requirement of production technology cleaning, environmental protection with basal body binding force, can substitute traditional cyanide galvanizer
Skill solves the problems, such as prior art environmental pollution and the health threat to direct labor.
The technical scheme of the present invention is realized as follows: a kind of high-performance non-cyanide alkali zincincation, described mainly to include
Complexing agent, main salt, conductive salt, brightener, in which:
Complexing agent content is 100~200 grams per liters；
Main salt content is 30~100 grams per liters；
Conductive salt content is 20~50 grams per liters；
Bright agent content is 10~100 mg/litres；
The pH value of electroplate liquid is 9.0~11.0；Solvent is water.
A kind of electroplating technology of zinc electroplate liquid of the invention, it is characterised in that: the following steps are included:
(1) metallic zinc is put into above-mentioned zinc electroplating solution, as anode；
(2) it puts the workpiece in above-mentioned zinc electroplating solution, as cathode；
(3) it is passed through DC power supply, 0.5~3 ampere/square decimeter of cathode-current density is 40~55 DEG C of temperature of electroplating solution, electric
The plating time 2~8 minutes.
Cathode-current density is 1.0~2.0 amperes/square decimeter in the step (3)；Temperature of electroplating solution is 45~50
℃；Electroplating time is 4~6 minutes.
Compared with prior art, electroplate liquid of the present invention replaces cyanide complex agent using New Chelating Agents, and what is had is beneficial
Effect are as follows:
1) electroplate liquid is free of cyanide, reaches the requirement of environment-protecting clean production technology, will not ask the health of direct labor
Topic threatens.
2) coating is good with basal body binding force, reaches the technical requirements of electroplated layer binding force.
Specific embodiment
Embodiment
A kind of high-performance non-cyanide alkali zincincation, the technique mainly include complexing agent, main salt, conductive salt, brightener,
PH value is 10.0, is adjusted with ammonium hydroxide or sulfuric acid.
Electro-plating method: 70 × 100mm of rectangle iron plate is used, plating test, condition are carried out in the Hull cell of 267ml
Are as follows: temperature 50 C, DC current are 1.0 amperes, are electroplated 5 minutes, and anode uses zine plate, obtain test piece A1.
Electroplating effect evaluation: observation test piece A1 appearance, whether coating is bright uniformly, crystallization is careful.
Coat binding strength evaluation: according to ASTM B571 (Usa Metals plate layer adhesion qualitative test) standard, test piece
A1 is heated to 240~260 DEG C in furnace, then takes out cooling in the water for be put into room temperature, and whether observation coating is bubbled or falls off.Such as
Fruit zinc layers have bubbling or fall off, then zinc layers and substrate combinating strength are unqualified；If zinc layers are not bubbled or fall off, zinc layers with
Substrate combinating strength is qualified.
Claims (1)
1. a kind of high-performance non-cyanide alkali zincincation, the electroplate liquid mainly includes complexing agent, main salt, conductive salt, brightener,
Wherein:
Complexing agent content is 100~200 grams per liters；
Main salt content is 30~100 grams per liters；
Conductive salt content is 20~50 grams per liters；
Bright agent content is 10~100 mg/litres；
The pH value of electroplate liquid is 9.0~11.0；Solvent is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116979.9A CN109778256A (en) | 2017-11-13 | 2017-11-13 | A kind of high-performance non-cyanide alkali zincincation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116979.9A CN109778256A (en) | 2017-11-13 | 2017-11-13 | A kind of high-performance non-cyanide alkali zincincation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109778256A true CN109778256A (en) | 2019-05-21 |
Family
ID=66493227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711116979.9A Pending CN109778256A (en) | 2017-11-13 | 2017-11-13 | A kind of high-performance non-cyanide alkali zincincation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109778256A (en) |
-
2017
- 2017-11-13 CN CN201711116979.9A patent/CN109778256A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |
|
| WD01 | Invention patent application deemed withdrawn after publication |