CN1031261A - Zinc immersing process for metals of large length - Google Patents
Zinc immersing process for metals of large length Download PDFInfo
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- CN1031261A CN1031261A CN 87105059 CN87105059A CN1031261A CN 1031261 A CN1031261 A CN 1031261A CN 87105059 CN87105059 CN 87105059 CN 87105059 A CN87105059 A CN 87105059A CN 1031261 A CN1031261 A CN 1031261A
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- zinc
- steel
- band steel
- paint
- soak
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Abstract
The present invention is particularly suitable for the banded cable steel and soaks zinc, replaces nitrogen protection method with the paint method.And can be as required the steel band of all size, steel wire, wire rod in soaking the zinc spot welding butt joint of advancing, passing through scale removal, rust cleaning, paint, soaking in zinc, the wrapup procedure, what continuously produce any length soaks the zinc steel band, and product does not have plating leakage (soaking), and can obtain two-sided 20 microns even zinc layer.Equipment is simple, and production cost reduces more than 30%.
Description
Belong to the metal dip galvanizing technique
Present domestic tyre steel soaks the zinc production technique and adopts nitrogen protection method more, adopts this method exactly as Harbin cold-rolled steel factory.And they are the steel band that the 300mm of certain-length is wide is cut into customer requirements again after current source soaks zinc specifications, carry out the spot welding butt joint then.
Its shortcoming has three:
1, rabbet position plating leakage;
2, cutting out back spot welding, easily becomes rusty in the spot welding position;
3, be with steel to soak the zinc pre-treatment with nitrogen protection method, the equipment manufacturing cost height, production cost is big.
The objective of the invention is to replace nitrogen protection method with the paint method; Before soaking zinc, steel band is cut into certain specification by customer requirements, and the spot welding butt joint, reach any length, overcome above-mentioned all shortcomings with this.
Principal feature of the present invention is: according to customer requirements the band steel, steel wire, the wire rod that close kind of specification are at first carried out the spot welding butt joint, through removing, rust cleaning, paint, soaking in the process of zinc, rolling, continuously produce any length soak the zinc steel band,
One, technical process such as accompanying drawing 1
Two, illustrate about the quantity in the technical process:
1. being with thin specification is 0.5mm * 35mm * 45mm * 55mm * 60mm 0.8mm * 35mm * different thickness and width such as 45mm * 60mm, its infinite in length (can be random length).
2. band is carefully extracted out by unreeling dish, finishes through pickling tank pickling (in flowing about 1 minute) i.e. rust cleaning.
3. the band after the rust cleaning is carefully goed ahead again, promptly passes through hot water wash, cold wash, paint, gives heated drying etc., all carries out in constantly advancing.
4. pass through after the above five processes, can enter in the molten zinc liquid after molten and soak zinc.The temperature of soaking zinc is between 430 ℃-460 ℃.At this moment, the attached power of seeing of zinc and flowability all are preferably, but Optimal Temperature is 445 ℃ ± 5 ℃, and this temperature is an optimum temps.The thin surface smoothness of the band that leaches in this warm area is good, level and smooth, evenly, bonding force is good; And phenomenons such as bubble, decortication do not appear.For this reason, the temperature control of soaking zinc is the key of quality product.The measure that thermostatically-controlled equipment is arranged and adapt.
5. band carefully soaks extraction, cooling and the rolling behind the zinc, is according to thin zinc-impregnating layer thickness requirement, the temperature of zinc pot, and galvanizing time and deciding.That is: zinc pot temperature height, galvanizing time is short.460 ℃ of the also just fast zinc temperature of draw speed, per minute 7-9 rice; Normal zinc temperature 445 ℃ ± 5, per minute 6-7 rice; About 430 ℃ of lowest temperatures, draw speed is also slow, every clock 4-5 rice, by that analogy.
6. in the stop of paint groove, to conform to following condition before soaking zinc with steel:
Paint composition: OP emulsifying agent 1-2g/l
Ammonium chloride 80-120g/l
Zinc chloride 600-800/l
After stirring, heat after 55 ℃ ± 5 ℃, come into operation again.In the paint groove of this heating, the soak time of band steel changes with the concentration of paint, when the paint effective component content is that the following of above-mentioned scope prescribed a time limit, soak time C needs 10 seconds approximately, concentration is last prescribing a time limit, soak time needs 5 seconds approximately ... through the band steel of paint, the avidity of zinc is increased and can make the band steel evenly accept adhering to of zinc.
The advantage of this technical process is, first spot welding butt joint, after soak zinc, product can be long arbitrarily, do not have to leak (soaking), without nitrogen protection, equipment is simple, production cost reduces more than 30%.Realize the quantity-produced purpose, and can obtain two-sided 20 microns even zinc layer.The preservative activity of metal under the air suspended type underground condition improved, and can satisfy any requirement of user about band steel length.
Embodiment:
One, equipment: power conditions 180KVA, electric furnace 120KVA12 band steel production line, 6 of PM350 step-down gears, spot welding machine 7.5KVA2 platform, 1 of fiberglass blower fan, 8 meters * 1.2 meters * 0.45 meter of pickling tank.
Two, produce in the zinc pot will be at continuous production fish for cadmia in the future, and (allowing purity is 1 constantly to replenish zinc ingot metal
#More than the zinc).
Three, technical requirements:
The regulation that 1, should meet GB41752-84.
2,100g/m
2Zinc layer weight (two-sided) be equivalent to every zinc coating thickness 0.0071mm.
3, balance meassurement GB1839-80 standard is carried out, and pliability test GB232-82 standard is carried out, and copper sulfate test YB50-64 standard is carried out.
Four, zinc coating thickness should meet following condition (weight table):
3 Schwellenwerts of triadic mean value
Chi 275 275 230
Chi 350 350 300
Chi 80 80 63
The Figure of description explanation:
Fig. 11, original product (steel band type fine rule) 6, give heated drying
2, pickling installation, rust cleaning 7, soak zinc (appendicular elements and explanation)
3, cold wash 8, water-cooled
4, hot water wash (more than 40 ℃) 9, finished product.
5, paint (composition, temperature, time, see attached list)
Under Fig. 2 Different Zinc liquid temp, the relation of iron loss and dipping time:
Fig. 3 band carefully the dipping time in zinc liquid and draw speed to the limit influence of zinc adhesion amount
Claims (5)
1, band steel dip galvanizing technique, its special card is to replace nitrogen protection method with the paint method, its technical process is: with carry out paint after the steel band rust cleaning, give heated drying, soak zinc, water cooling, then obtain finished product.
2, according to the said band steel of claim 1 dip galvanizing technique, the temperature that its special card is to soak zinc is between 430 ℃-460 ℃, and Optimal Temperature is 445 ℃ ± 5 ℃.
3, according to claim 1,2 said band steel dip galvanizing techniques, its special card will conform to following condition before being to soak zinc with steel in left alone without help the staying of paint groove:
Paint composition: OP emulsifying agent 1-2g/L
Ammonium chloride 80-120g/L
Zinc chloride 600-800g/L
After stirring, heat, come into operation again to 55 ℃ ± 5 ℃.
4, according to claim 1,2 said band steel dip galvanizing techniques, its special card is to be with steel to soak the zinc spot welding butt joint of advancing, and time-limited band steel is become meet any long band steel of customer requirements.
5, according to the said band steel of claim 3 dip galvanizing technique, its special card is to be with steel to soak the zinc spot welding butt joint of advancing, and uses limit for length's band steel to become any long band steel that meets customer requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105059 CN1031261A (en) | 1987-08-13 | 1987-08-13 | Zinc immersing process for metals of large length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105059 CN1031261A (en) | 1987-08-13 | 1987-08-13 | Zinc immersing process for metals of large length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031261A true CN1031261A (en) | 1989-02-22 |
Family
ID=4815148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87105059 Pending CN1031261A (en) | 1987-08-13 | 1987-08-13 | Zinc immersing process for metals of large length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031261A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049016C (en) * | 1995-06-06 | 2000-02-02 | 北京市天桥精密钢管公司 | Production process for galvanized plastic-sprayed double coiled welded tube and its equipment and products |
| CN101979698A (en) * | 2010-11-19 | 2011-02-23 | 江苏泰力钢绳有限公司 | Hot-dip galvanizing furnace provided with cooling device |
| CN101734422B (en) * | 2009-12-10 | 2011-12-28 | 上海宝钢包装钢带有限公司 | Production method of zinc coating steel band for packaging |
-
1987
- 1987-08-13 CN CN 87105059 patent/CN1031261A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049016C (en) * | 1995-06-06 | 2000-02-02 | 北京市天桥精密钢管公司 | Production process for galvanized plastic-sprayed double coiled welded tube and its equipment and products |
| CN101734422B (en) * | 2009-12-10 | 2011-12-28 | 上海宝钢包装钢带有限公司 | Production method of zinc coating steel band for packaging |
| CN101979698A (en) * | 2010-11-19 | 2011-02-23 | 江苏泰力钢绳有限公司 | Hot-dip galvanizing furnace provided with cooling device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Applicant: Fu Zhijun |
|
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |