CN102816984A - Hot dip galvanizing additive - Google Patents
Hot dip galvanizing additive Download PDFInfo
- Publication number
- CN102816984A CN102816984A CN2012102530018A CN201210253001A CN102816984A CN 102816984 A CN102816984 A CN 102816984A CN 2012102530018 A CN2012102530018 A CN 2012102530018A CN 201210253001 A CN201210253001 A CN 201210253001A CN 102816984 A CN102816984 A CN 102816984A
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- zinc
- bismuth
- hot dip
- dip galvanizing
- additive
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Abstract
The invention provides a hot dip galvanizing additive which is composed of zinc-bismuth multi-element alloy and comprises the following elements expressed in weight percentage: 98.5 to 99.5% of zinc, 0.35 to 0.40% of bismuth and 0.42 to 0.48% of rare earth and other elements. Temperature is controlled to be in a range of 440 DEG C to 460 DEG C when the zinc-bismuth multi-element alloy is added; the addition amount of the zinc-bismuth multi-element alloy accounts for 5 to 10% of the amount of zinc ingots needed in hot dip galvanizing. The hot dip galvanizing additive provided by the invention greatly improves flowing properties of zinc liquid, guarantees the quality and corrosion resistance of a product, is green and environment friendly and expands the sale range of the product.
Description
Technical field:
The present invention relates to a kind of pot galvanize additive.
Background technology:
At present pot galvanize enterprise adopts PW level zinc ingot metal mostly, and lead concentration is about 1%, is lined with one deck lead at the zinc pot bottom, is used to remove cadmia, prevents that cadmia and the bottom of a pan from adhering to each other, and prolongation zinc pot work-ing life, and zinc liquid good flowing properties, quality product is guaranteed.But too much lead can work the mischief to HUMAN HEALTH, and production marketing is restricted.There is good zinc coating thickness in some pot galvanize enterprises in order to make product now, improve the solidity to corrosion of product, satisfy environmental requirement; Do not re-use PW level zinc ingot metal, adopt SHG level zinc ingot metal mostly, concentration plumbous in this zinc ingot metal is less than 0.003%; Because plumbous concentration is low excessively; Cadmia can not precipitate, and the zinc flow is moved poor performance, and the quality product of pot galvanize can not get guaranteeing.
Summary of the invention:
The object of the invention will provide a kind of pot galvanize additive exactly, and it can increase the corrosion resistance nature of product, environmental protection again, and guarantee quality product.
The objective of the invention is to realize like this, a kind of pot galvanize additive is made up of zinc bismuth multicomponent alloy, it is characterized in that: each element content by weight percentage is zinc 98.5-99.5%; Bismuth 0.35-0.40%; Rare earth and other element 0.42-0.48%; Temperature when adding zinc bismuth multicomponent alloy generally is controlled at 440 ℃-460 ℃; The addition of described zinc bismuth multicomponent alloy accounts for the 5-10% of the required adding zinc ingot metal of pot galvanize amount.
The present invention has improved the flowing property of zinc liquid greatly, and the quality and the corrosion resistance nature of product are guaranteed, and environmental protection has enlarged the sales range of product.
Embodiment:
A kind of pot galvanize additive is made up of zinc bismuth multicomponent alloy, it is characterized in that: each element content by weight percentage is zinc 98.5-99.5%; Bismuth 0.35-0.40%; Rare earth and other element 0.42-0.48%; Temperature when adding zinc bismuth multicomponent alloy generally is controlled at 440 ℃-460 ℃; The addition of described zinc bismuth multicomponent alloy accounts for the 5-10% of the required adding zinc ingot metal of pot galvanize amount.
During practical implementation, need before the heating galvanizing additive first to remove end slag, the pot galvanize additive is evenly added, add fashionable zinc liquid temperature and generally be controlled at 440 ℃-460 ℃, reduce temperature fluctuation, can guarantee quality of coating with hanging basket.The present invention has improved the flowability of zinc liquid at galvanizing process, attenuate coating, has reduced the consumption of zinc, adopts to add trace bismuth and substitute plumbous raising flowing property.Bismuth is a kind of environmental protection metallic element, cooperates with other element to improve the anti-oxidant and coating resistance to corrosion of zinc liquid, is that a kind of minimizing zinc is bathed oxidation; Attenuate silicon containing steel coating; It is mobile to have increased zinc liquid, has improved coating uniformity and tack, has improved the color and luster of coating outward appearance; The coating antiseptic power is increased, prolonged zinc pot work-ing life, and can save zinc 8-15%.Can reach effective removing cadmia, become unleaded Green Product, and can also improve the corrosion resistance nature of product.
Claims (3)
1. a pot galvanize additive is made up of zinc bismuth multicomponent alloy, it is characterized in that: each element is zinc 98.5-99.5% by weight percentage; Bismuth 0.35-0.40%; Rare earth and other element 0.42-0.48%.
2. a kind of pot galvanize additive according to claim 1 is characterized in that: the temperature when adding zinc bismuth multicomponent alloy is controlled at 440 ℃-460 ℃.
3. a kind of pot galvanize additive according to claim 1 is characterized in that: the addition of described zinc bismuth multicomponent alloy accounts for the 5-10% of the required adding zinc ingot metal of pot galvanize amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530018A CN102816984A (en) | 2012-07-21 | 2012-07-21 | Hot dip galvanizing additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530018A CN102816984A (en) | 2012-07-21 | 2012-07-21 | Hot dip galvanizing additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102816984A true CN102816984A (en) | 2012-12-12 |
Family
ID=47301422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102530018A Pending CN102816984A (en) | 2012-07-21 | 2012-07-21 | Hot dip galvanizing additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102816984A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116047A (en) * | 1997-06-12 | 1999-01-12 | Mitsui Mining & Smelting Co Ltd | Base metal for hot dip zinc alloy coating bath, hot dip coating bath, hot dip zinc alloy coated steel and its production |
| CN1654692A (en) * | 2005-02-07 | 2005-08-17 | 株洲冶炼集团有限责任公司 | Zinc bismuth multicomponent alloy used for hot dip galvanizing of steel and iron members and hot dip galvanizing method therefor |
| WO2007088890A1 (en) * | 2006-02-02 | 2007-08-09 | Ck Metals Co., Ltd. | Hot dip zinc plating bath and zinc-plated iron product |
-
2012
- 2012-07-21 CN CN2012102530018A patent/CN102816984A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116047A (en) * | 1997-06-12 | 1999-01-12 | Mitsui Mining & Smelting Co Ltd | Base metal for hot dip zinc alloy coating bath, hot dip coating bath, hot dip zinc alloy coated steel and its production |
| CN1654692A (en) * | 2005-02-07 | 2005-08-17 | 株洲冶炼集团有限责任公司 | Zinc bismuth multicomponent alloy used for hot dip galvanizing of steel and iron members and hot dip galvanizing method therefor |
| WO2007088890A1 (en) * | 2006-02-02 | 2007-08-09 | Ck Metals Co., Ltd. | Hot dip zinc plating bath and zinc-plated iron product |
Non-Patent Citations (1)
| Title |
|---|
| 李万根: "无烟热镀锌工艺", 《材料保护》 * |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20121212 |