CN109881133A - A kind of electric power tower component hot dip galvanizing process - Google Patents
A kind of electric power tower component hot dip galvanizing process Download PDFInfo
- Publication number
- CN109881133A CN109881133A CN201910185206.9A CN201910185206A CN109881133A CN 109881133 A CN109881133 A CN 109881133A CN 201910185206 A CN201910185206 A CN 201910185206A CN 109881133 A CN109881133 A CN 109881133A
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- Prior art keywords
- electric power
- dip galvanizing
- hot dip
- galvanizing process
- power tower
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Abstract
The invention discloses a kind of hot dip galvanizing process of electric power tower component, the hot dip galvanizing process of the electric power tower component, it include: that degreasing-elution-pickling-elutes-helps plating-drying-galvanizing by dipping-passivation totally 8 steps, the method of traditional rinsing residul liquid-removing is changed to the mode of high pressure elution in this technique, the water resource waste in above-mentioned steps is reduced, and degreasing washing lotion used in defatting step is the acidic liquid of the rear generation eluted in acid pickling step.By the above-mentioned means, the present invention can reduce the water resource waste in entire hot dip galvanizing process process, and can reduce the use of acid solute in acid cleaning process, cost is reduced.
Description
Technical field
The present invention relates to metal process fields, more particularly to a kind of electric power tower component hot dip galvanizing process.
Background technique
Generally use steel tower as relaying, electric power tower permanent worker under exposed environments in high pressure and extra high voltage network
The corrosion-resistant weatherability for needing to have excellent, and hot galvanizing as steel component common corrosion-resistance treatment technique in steel tower
Be widely used in the production of component, but in hot dip galvanizing process to degreasing and acidification step be typically all using a large amount of water into
Row rinsing, the direct waste discharge processing of waste water after not rinsing, although not will cause ring before discharge of wastewater after harmless treatment
The burden in border, but the waste of resource is larger in the step.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of iron tower construction member hot dip galvanizing process for saving water resource, can
Improve the utilization efficiency of water resource.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of electric power tower component is provided
Hot dip galvanizing process, the hot dip galvanizing process of the electric power tower component, comprising the following steps:
S1. degreasing: being immersed in degreaser to galvanized workpiece, removing each quasi-grease pollution on plating piece surface to be plated, described de-
Rouge liquid is the aqueous solution containing sodium hydroxide 4~7%, and the temperature of degreaser is 60 DEG C~80 DEG C, 8 ~ 15min of dip time；
S2. elution is sprayed washing lotion to removal surface alkalinty raffinate on workpiece by high-pressure nozzle；
S3. pickling: no oil pollution to galvanized workpiece, being immersed in pickling tube, removes ferriferous oxide on plating piece surface；
S4 elution is sprayed washing lotion to the quick elution removal remained on surface acid solution of progress on workpiece to be plated by high-pressure nozzle；
S5. it helps plating: helping plating 3 ~ 4min of pond or so being 60 DEG C~80 DEG C in temperature to galvanized workpiece direct impregnation after pickling
After take out；
S6. it dries: the workpiece after dipping being put and passes through hot-air seasoning；
S7. galvanizing by dipping: by by helping the plating piece of plating to be immersed in the zinc liquid of melting, to dipping 5 of the workpiece in zinc liquid ~
After 10min, it is quickly transferred to be rapidly cooled in cooling bay；
S8. it is passivated: the workpiece cooled down is immersed in passivating solution, form one layer of passivating film, passivation knot on galvanized part surface
Shu Houyong pure water rinses and uses hot-air seasoning；
Degreasing washing lotion used in the S2 step is the liquid after eluting in S4 step, sprays washing lotion used in the S4
For pure water.
In a preferred embodiment of the present invention, washing lotion used in the S3 acid pickling step is dilute hydrochloric acid, the pickling
Acid mist suction channel, washing lotion pond used in the acid mist pipeline connection S2 are installed on pond.
In a preferred embodiment of the present invention, the ingredient of the quickening liquid by ZnCl2, NH4Cl and water and forms, and helps
Solution pH value is adjusted using ammonium hydroxide during plating, the pH value of the solution is maintained at 3 ~ 4.
In a preferred embodiment of the present invention, continued smooth is gone back in the quickening liquid to be passed through by purified heat sky
Gas.
In a preferred embodiment of the present invention, drying temperature is 120 DEG C ~ 130 DEG C in the S6 step.
In a preferred embodiment of the present invention, the temperature of zinc liquid is 450 DEG C ~ 500 DEG C in the S7 step.
In a preferred embodiment of the present invention, the cooling terminal in the S8 step is 50 ~ 60 DEG C.
In a preferred embodiment of the present invention, the solution temperature in the passivation stage is no more than 50 DEG C.
The beneficial effects of the present invention are: the technical scheme is that by the way that the rinse step of hot dip galvanizing process is changed to height
Pressure elution, reduces washing lotion dosage during removing surface, and according to the property of washing lotion, pickling washing lotion is first made before discharge
Scouring water is drenched for the high pressure of defatting step, prewashing is carried out to the plating piece after degreasing, reduces acid while rinsing water can be saved
When washing in acid cleaning process inorganic acid loss rate, reduce the waste of resource.
Detailed description of the invention
Fig. 1 is the flow diagram of a preferred embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of hot dip galvanizing process of electric power tower component, the hot dip galvanizing process of the electric power tower component, including following step are provided
It is rapid:
S1. degreasing: being immersed in degreaser to galvanized workpiece, removing each quasi-grease pollution on plating piece surface to be plated, described de-
Rouge liquid is the aqueous solution containing sodium hydroxide 4%, and the temperature of degreaser is 60 DEG C~80 DEG C, dip time 15min；
S2. elution is sprayed washing lotion to removal surface alkalinty raffinate on workpiece by high-pressure nozzle；
S3. pickling: no oil pollution to galvanized workpiece, being immersed in pickling tube, removes ferriferous oxide on plating piece surface；
S4 elution is sprayed washing lotion to the quick elution removal remained on surface acid solution of progress on workpiece to be plated by high-pressure nozzle；
S5. it helps plating: helping plating 3 ~ 4min of pond or so rear taking-up being 60 DEG C in temperature after galvanized workpiece direct impregnation after pickling；
S6. it dries: the workpiece after dipping being put and passes through hot-air seasoning；
S7. galvanizing by dipping: by by helping the plating piece of plating to be immersed in the zinc liquid of melting, to dipping of the workpiece in zinc liquid
After 10min, it is quickly transferred to be rapidly cooled in cooling bay；
S8. it is passivated: the workpiece cooled down is immersed in passivating solution, form one layer of passivating film, passivation knot on galvanized part surface
Shu Houyong pure water rinses and uses hot-air seasoning；
Degreasing washing lotion used in the S2 step is the liquid after eluting in S4 step, sprays washing lotion used in the S4
For pure water.The raffinate rinsing in degreasing and acid cleaning process can be reduced by way of high-pressure spraying through the above steps uses water
Workpiece is pre-processed using the acid leaching scouring water generated in S4 step while amount, reduces the acid in acid bath
Matter dosage.
Washing lotion used in the S3 acid pickling step is dilute hydrochloric acid, and acid mist suction channel is installed on the pickling tube, described
Washing lotion pond used in acid mist pipeline connection S2 can reuse the acidic materials in acid mist, reduce loss.
The ingredient of the activating solution is by ZnCl2, NH4Cl and water and forms, and helps during plating and adjust solution using ammonium hydroxide
The pH value of pH value, the solution is maintained at 3 ~ 4, and workpiece surface is made to form activation film layer, solution surface when preventing zinc liquid from adhering to
Zinc oxide film influences base steel in the combination effect of zinc coat.
It goes back continued smooth in the quickening liquid to be passed through by purified hot-air, the air, which is passed through in solution, to incite somebody to action
Ferrous ion in solution is converted into ferric ion, facilitates subsequent transformation to filter out after ferric hydroxide precipitate.
Drying temperature is 120 DEG C ~ 130 DEG C in the S6 step, and temperature is excessively high to will cause the dehydration of surface chlorination zinc crystal, no
Conducive to zinc liquid is stirred after gasification, the influence of zinc oxide is reduced, temperature is too low, dries insufficient.
The temperature of zinc liquid is 450 DEG C in the S7 step, and the fusing point of zinc is too low at 420 DEG C or so, zinc liquid poor fluidity,
Too high, energy consumption increases.
Cooling terminal in the S8 step is 50 DEG C, is easy to use room temperature water cooling, reduces cooling time, facilitates circulation cold
But.
The solution temperature in the passivation stage is 20 ~ 40 DEG C, and the temperature of passivating solution is excessively high to cause metal directly anti-with acid
It answers, influences passivation effect.
In another embodiment,
A kind of hot dip galvanizing process of electric power tower component, the hot dip galvanizing process of the electric power tower component, including following step are provided
It is rapid:
S1. degreasing: being immersed in degreaser to galvanized workpiece, removing each quasi-grease pollution on plating piece surface to be plated, described de-
Rouge liquid is the aqueous solution containing sodium hydroxide 7%, and the temperature of degreaser is 60 DEG C~80 DEG C, dip time 8min；
S2. elution is sprayed washing lotion to removal surface alkalinty raffinate on workpiece by high-pressure nozzle；
S3. pickling: no oil pollution to galvanized workpiece, being immersed in pickling tube, removes ferriferous oxide on plating piece surface；
S4 elution is sprayed washing lotion to the quick elution removal remained on surface acid solution of progress on workpiece to be plated by high-pressure nozzle；
S5. it helps plating: helping plating 3 ~ 4min of pond or so rear taking-up being 80 DEG C in temperature after galvanized workpiece direct impregnation after pickling；
S6. it dries: the workpiece after dipping being put and passes through hot-air seasoning；
S7. galvanizing by dipping: by by helping the plating piece of plating to be immersed in the zinc liquid of melting, to dipping of the workpiece in zinc liquid
After 5min, it is quickly transferred to be rapidly cooled in cooling bay；
S8. it is passivated: the workpiece cooled down is immersed in passivating solution, form one layer of passivating film, passivation knot on galvanized part surface
Shu Houyong pure water rinses and uses hot-air seasoning；
Degreasing washing lotion used in the S2 step is the liquid after eluting in S4 step, sprays washing lotion used in the S4
For pure water.The raffinate rinsing in degreasing and acid cleaning process can be reduced by way of high-pressure spraying through the above steps uses water
Workpiece is pre-processed using the acid leaching scouring water generated in S4 step while amount, reduces the acid in acid bath
Matter dosage.
Washing lotion used in the S3 acid pickling step is dilute hydrochloric acid, and acid mist suction channel is installed on the pickling tube, described
Washing lotion pond used in acid mist pipeline connection S2 can reuse the acidic materials in acid mist, reduce loss.
The ingredient of the activating solution is by ZnCl2, NH4Cl and water and forms, and helps during plating and adjust solution using ammonium hydroxide
The pH value of pH value, the solution is maintained at 3 ~ 4, and workpiece surface is made to form activation film layer, solution surface when preventing zinc liquid from adhering to
Zinc oxide film influences base steel in the combination effect of zinc coat.
It goes back continued smooth in the quickening liquid to be passed through by purified hot-air, the air, which is passed through in solution, to incite somebody to action
Ferrous ion in solution is converted into ferric ion, facilitates subsequent transformation to filter out after ferric hydroxide precipitate.
Drying temperature is 120 DEG C ~ 130 DEG C in the S6 step, and temperature is excessively high to will cause the dehydration of surface chlorination zinc crystal, no
Conducive to zinc liquid is stirred after gasification, the influence of zinc oxide is reduced, temperature is too low, dries insufficient.
The temperature of zinc liquid is 500 DEG C in the S7 step, and the fusing point of zinc is too low at 420 DEG C or so, zinc liquid poor fluidity,
Too high, energy consumption increases.
Cooling terminal in the S8 step is 50 DEG C, is easy to use room temperature water cooling, reduces cooling time, facilitates circulation cold
But.
The solution temperature in the passivation stage is 30 ~ 50 DEG C, and the temperature of passivating solution is excessively high to cause metal directly anti-with acid
It answers, influences passivation effect.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of hot dip galvanizing process of electric power tower component, it is characterised in that the hot dip galvanizing process of the electric power tower component, packet
Include following steps:
S1. degreasing: being immersed in degreaser to galvanized workpiece, removing each quasi-grease pollution on plating piece surface to be plated, described de-
Rouge liquid is the aqueous solution containing sodium hydroxide 4~7%, and the temperature of degreaser is 60 DEG C~80 DEG C, 8 ~ 15min of dip time；
S2. elution is sprayed washing lotion to removal surface alkalinty raffinate on workpiece by high-pressure nozzle；
S3. pickling: no oil pollution to galvanized workpiece, being immersed in pickling tube, removes ferriferous oxide on plating piece surface；
S4 elution is sprayed washing lotion to the quick elution removal remained on surface acid solution of progress on workpiece to be plated by high-pressure nozzle；
S5. it helps plating: helping plating 3 ~ 4min of pond or so being 60 DEG C~80 DEG C in temperature to galvanized workpiece direct impregnation after pickling
After take out；
S6. it dries: the workpiece after dipping being put and passes through hot-air seasoning；
S7. galvanizing by dipping: by by helping the plating piece of plating to be immersed in the zinc liquid of melting, to dipping 5 of the workpiece in zinc liquid ~
After 10min, it is quickly transferred to be rapidly cooled in cooling bay；
S8. it is passivated: the workpiece cooled down is immersed in passivating solution, form one layer of passivating film, passivation knot on galvanized part surface
Shu Houyong pure water rinses and uses hot-air seasoning；
Degreasing washing lotion used in the S2 step is the liquid after eluting in S4 step, sprays washing lotion used in the S4
For pure water.
2. the hot dip galvanizing process of electric power iron component according to claim 1, which is characterized in that make in the S3 acid pickling step
Washing lotion is dilute hydrochloric acid, and acid mist suction channel, washing lotion used in the acid mist pipeline connection S2 are installed on the pickling tube
Pond.
3. the hot dip galvanizing process of electric power tower component according to claim 1, which is characterized in that the ingredient of the quickening liquid
It by ZnCl2, NH4Cl and water and forms, and helps during plating and adjust solution pH value using ammonium hydroxide, the pH value of the solution is maintained at
3~4。
4. the hot dip galvanizing process of electric power tower component according to claim 3, which is characterized in that also held in the quickening liquid
It is continuous to be steadily passed through by purified hot-air.
5. the hot dip galvanizing process of electric power tower component according to claim 1, which is characterized in that dried in the S6 step
Temperature is 120 DEG C ~ 130 DEG C.
6. the hot dip galvanizing process of electric power tower component according to claim 1, which is characterized in that zinc liquid in the S7 step
Temperature be 450 DEG C ~ 500 DEG C.
7. the hot dip galvanizing process of electric power tower component according to claim 1, which is characterized in that cold in the S8 step
But terminal is 50 ~ 60 DEG C.
8. the hot dip galvanizing process of electric power tower component according to claim 1, which is characterized in that the passivation stage it is molten
Liquid temperature is no more than 50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185206.9A CN109881133A (en) | 2019-03-12 | 2019-03-12 | A kind of electric power tower component hot dip galvanizing process |
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| CN201910185206.9A CN109881133A (en) | 2019-03-12 | 2019-03-12 | A kind of electric power tower component hot dip galvanizing process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129703A (en) * | 2019-06-25 | 2019-08-16 | 中电建成都铁塔有限公司 | A kind of hot dip galvanizing process and hot dip liquid system for iron tower construction member |
| CN110541134A (en) * | 2019-10-19 | 2019-12-06 | 广西凯威铁塔有限公司 | acid rain resistant electric power iron tower structural member hot dip galvanizing production method |
| CN110565036A (en) * | 2019-10-19 | 2019-12-13 | 广西凯威铁塔有限公司 | hot-dip galvanizing production method for electric power iron tower connecting piece with uniform surface zinc layer thickness |
| CN110665778A (en) * | 2019-11-03 | 2020-01-10 | 江苏荣辉电力设备制造有限公司 | On-site repairing method for power transmission tower zinc coating |
| CN110699622A (en) * | 2019-10-19 | 2020-01-17 | 广西凯威铁塔有限公司 | Production method of electric power iron tower structural member with surface zinc layer peeling resistance |
| CN110714178A (en) * | 2019-11-03 | 2020-01-21 | 江苏荣辉电力设备制造有限公司 | Hot galvanizing process for electric iron tower component |
| CN114032484A (en) * | 2021-11-16 | 2022-02-11 | 张家港市恒强冷却设备有限公司 | Hot galvanizing process for main body of generator air cooler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101215682A (en) * | 2007-12-29 | 2008-07-09 | 浙江盛达铁塔有限公司 | Non-poaching-water common hot-dip galvanizing technique |
| CN105603349A (en) * | 2016-01-06 | 2016-05-25 | 云南东电线路器材有限公司 | Hot galvanizing process |
-
2019
- 2019-03-12 CN CN201910185206.9A patent/CN109881133A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215682A (en) * | 2007-12-29 | 2008-07-09 | 浙江盛达铁塔有限公司 | Non-poaching-water common hot-dip galvanizing technique |
| CN105603349A (en) * | 2016-01-06 | 2016-05-25 | 云南东电线路器材有限公司 | Hot galvanizing process |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129703A (en) * | 2019-06-25 | 2019-08-16 | 中电建成都铁塔有限公司 | A kind of hot dip galvanizing process and hot dip liquid system for iron tower construction member |
| CN110541134A (en) * | 2019-10-19 | 2019-12-06 | 广西凯威铁塔有限公司 | acid rain resistant electric power iron tower structural member hot dip galvanizing production method |
| CN110565036A (en) * | 2019-10-19 | 2019-12-13 | 广西凯威铁塔有限公司 | hot-dip galvanizing production method for electric power iron tower connecting piece with uniform surface zinc layer thickness |
| CN110699622A (en) * | 2019-10-19 | 2020-01-17 | 广西凯威铁塔有限公司 | Production method of electric power iron tower structural member with surface zinc layer peeling resistance |
| CN110665778A (en) * | 2019-11-03 | 2020-01-10 | 江苏荣辉电力设备制造有限公司 | On-site repairing method for power transmission tower zinc coating |
| CN110714178A (en) * | 2019-11-03 | 2020-01-21 | 江苏荣辉电力设备制造有限公司 | Hot galvanizing process for electric iron tower component |
| CN114032484A (en) * | 2021-11-16 | 2022-02-11 | 张家港市恒强冷却设备有限公司 | Hot galvanizing process for main body of generator air cooler |
| CN114032484B (en) * | 2021-11-16 | 2023-07-21 | 张家港市恒强冷却设备有限公司 | Hot galvanizing process for generator air cooler main body |
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Application publication date: 20190614 |
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