CN105886985A - Hot galvanizing method for ultralong steel parts - Google Patents
Hot galvanizing method for ultralong steel parts Download PDFInfo
- Publication number
- CN105886985A CN105886985A CN201610242150.2A CN201610242150A CN105886985A CN 105886985 A CN105886985 A CN 105886985A CN 201610242150 A CN201610242150 A CN 201610242150A CN 105886985 A CN105886985 A CN 105886985A
- Authority
- CN
- China
- Prior art keywords
- galvanizing
- steel part
- ammonium chloride
- overlength steel
- overlength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention relates to a hot galvanizing method for ultralong steel parts. According to the technical scheme, the ultralong steel parts subjected to acid pickling are placed in an ammonium chloride solution to be dipped for 5-10 min, and then the ultralong steel parts are fished out and placed on a drying furnace to be dried; a section of each of the 1-50 dried ultralong steel parts is dipped in a galvanizing solution of a galvanizing tank, and the temperature of the galvanizing solution is 400-420 DEG C; and when the ultralong steel parts are dipped for 1-2 min, a layer of ammonium chloride is evenly spread on the upper surface of the other section, not dipped in the galvanizing solution, of each ultralong steel part, the ultralong steel parts dipped in the galvanizing solution is fished out within 1-3 min after the ammonium chloride is spread and stayed in air for 1-3 min, then the other section of each ultralong steel part is dipped in the galvanizing tank for 2-5 min, and then the ultralong steel parts are fished out. The length of each ultralong steel part, which is a bar or structural steel, is 1-1.8 times that of the galvanizing tank. The ammonium chloride of 0.5-2 kg is spread on every square meter of the upper surface of each ultralong steel part. The hot galvanizing method has the characteristics that cost is low, comprehensive energy consumption is small, and production efficiency is high.
Description
Technical field
The invention belongs to Hot Galvanizing Technology field.It is specifically related to the hot galvanizing method of a kind of overlength steel part.
Background technology
Galvanizing is that the steel part after eliminating rust immerses in about the 400-460 DEG C galvanizing flux melted, and makes steel piece surface adhere to
Zinc layers.The technological process of galvanizing: finished product acid-washing-wash-add quickening liquid-drying-galvanizing.At small-sized zinc-plated factory, galvanizing bath
Limited length.The processing method treating galvanizing overlength steel part for exceeding galvanizing bath length is: will treat the overlength of galvanizing
One section (being called for short one section) of one end of steel part first completes galvanizing, and the temperature of galvanizing flux is 400 ~ 420 DEG C, and does not immerses galvanizing flux
The ammonium chloride that spills of one section of (being called for short another section) overlength steel piece surface paving of the other end can decompose and exhaust, treat galvanizing overlength steel part
Another section surface oxidized.Therefore, need again will to be not fully complete another section pickling again of hot dip-wash-add and help after cooling
Plating solution-drying-galvanizing.
Said method has a problem in that: 1, pickling again-wash-add quickening liquid-drying, acid, water and energy consumption are big；2、
Cooling down after workpiece heat, galvanizing bath energy consumption is high；3, two ends batch (-type) process for producing efficiency is low.
Summary of the invention
It is contemplated that overcome prior art defect, it is therefore an objective to production cost is low, comprehensive energy consumption is little and produces to provide one
The hot galvanizing method of the overlength steel part that efficiency is high.
For achieving the above object, the technical solution used in the present invention is: first the overlength steel part after pickling is put into ammonium chloride
In solution, impregnate 5 ~ 10 minutes, pull out, be placed on drying oven drying.Then a section of 1 ~ 50 overlength steel part after drying
Immersing in the galvanizing flux of galvanizing bath, the temperature of galvanizing flux is 400 ~ 420 DEG C；When the immersion time is 1 ~ 2 minute, to not immersing plating
The upper surface of another section of overlength steel part of zinc liquid one layer of ammonium chloride of spreading equably, after spreading ammonium chloride 1 ~ 3 minute, plates immersion
Overlength steel part in zinc liquid is pulled out, stops in the air 1 ~ 3 minute, then another section of overlength steel part is immersed in galvanizing bath, during immersion
Between be 2 ~ 5 minutes, pull out.
1 ~ 1.8 times of a length of galvanizing bath length of described overlength steel part, described overlength steel part is bar or is shaped steel.
One layer of ammonium chloride of described spreading refers to the ammonium chloride of every square metre of spreading 0.5 ~ 2kg.
Owing to using technique scheme, the present invention compared with prior art, has a following good effect:
1, overlength steel part only needs a pickling-wash-add quickening liquid-drying, and acid, water, quickening liquid and energy consumption are few, therefore produces
Low cost；
2, after overlength steel part completes one section of galvanizing, it is not necessary to cooling just can be continuously finished another section of galvanizing operation, the most zinc-plated
Groove energy consumption is little, and comprehensive energy consumption is little.
3, overlength steel part two sections carries out galvanizing respectively, makes whole overlength steel part achieve continuous operation, and production efficiency is high.
Therefore, the feature that the present invention has low cost, comprehensive energy consumption is little and production efficiency is high.
Detailed description of the invention
In conjunction with detailed description of the invention, the present invention is described further, not the restriction to its protection domain.
Embodiment 1
A kind of hot galvanizing method of overlength steel part.First the overlength steel part after pickling is put in ammonium chloride solution, impregnate 5 ~ 8 points
Clock, pulls out, is placed on drying oven drying.Then a section of 1 ~ 10 overlength steel part after drying immerses galvanizing bath in rows
In galvanizing flux, the temperature of galvanizing flux is 400 ~ 420 DEG C；When the immersion time is 1 ~ 2 minute, to another section not immersing galvanizing flux
The upper surface of overlength steel part one layer of ammonium chloride of spreading equably, spreads after ammonium chloride 1 ~ 2 minute, will immerse the overlength steel in galvanizing flux
Part is pulled out, stops in the air 1 ~ 3 minute, then another section of overlength steel part is immersed in galvanizing bath, and the immersion time is 2 ~ 4 minutes, drags for
Go out.
1 ~ 1.5 times of a length of galvanizing bath length of described overlength steel part, described overlength steel part is shaped steel.
One layer of ammonium chloride of described spreading refers to the ammonium chloride of every square metre of spreading 0.5 ~ 1.5kg.
Embodiment 2
A kind of hot galvanizing method of overlength steel part.First the overlength steel part after pickling is put in ammonium chloride solution, impregnate 7 ~ 10 points
Clock, pulls out, is placed on drying oven drying.Then one section of 10 ~ 50 overlength steel parts after drying immerses galvanizing bath bundledly
Galvanizing flux in, the temperature of galvanizing flux is 400 ~ 420 DEG C；When the immersion time is 1 ~ 2 minute, to not immersing another of galvanizing flux
The upper surface of Duan Chaochang steel part one layer of ammonium chloride of spreading equably, after spreading ammonium chloride 2 ~ 3 minutes, will immerse in galvanizing flux was super
Long steel piece is pulled out, stops in the air 1 ~ 3 minute, then another section of overlength steel part is immersed in galvanizing bath, and the immersion time is 3 ~ 5 points
Clock, pulls out.
1.2 ~ 1.8 times of a length of galvanizing bath length of described overlength steel part, described overlength steel part is bar.
One layer of ammonium chloride of described spreading refers to the ammonium chloride of every square metre of spreading 1 ~ 2kg.
This detailed description of the invention compared with prior art, has a following good effect:
1, overlength steel part only needs a pickling-wash-add quickening liquid-drying, and acid, water, quickening liquid and energy consumption are few, therefore produces
Low cost；
2, after overlength steel part completes one section of (one section of one end) galvanizing, it is not necessary to cooling just can be continuously finished another section (other end
One section) galvanizing operation, not only galvanizing bath energy consumption is little, and comprehensive energy consumption is little.
3, overlength steel part two sections carries out galvanizing respectively, makes whole overlength steel part achieve continuous operation, and production efficiency is high.
Therefore, the feature that this detailed description of the invention has low cost, comprehensive energy consumption is little and production efficiency is high.
Claims (3)
1. the hot galvanizing method of an overlength steel part, it is characterised in that first the overlength steel part after pickling is put into ammonium chloride solution
In, impregnate 5～10 minutes, pull out, be placed on drying oven drying；One section of leaching of 1～50 overlength steel part after then drying
Entering in the galvanizing flux of galvanizing bath, the temperature of galvanizing flux is 400～420 DEG C；When the immersion time is 1～2 minute, to not immersing plating
The upper surface of another section of overlength steel part of zinc liquid one layer of ammonium chloride of spreading equably, after spreading ammonium chloride 1～3 minute, will immerse
Overlength steel part in galvanizing flux is pulled out, aerial stop 1～3 minute, then another section of overlength steel part is immersed in galvanizing bath, immerses
Time is 2～5 minutes, pulls out.
The hot galvanizing method of overlength steel part the most according to claim 1, it is characterised in that a length of plating of described overlength steel part
1～1.8 times of zinc slot length, described overlength steel part is bar or is shaped steel.
The hot galvanizing method of overlength steel part the most according to claim 1, it is characterised in that one layer of ammonium chloride of described spreading refers to
The ammonium chloride of every square metre of spreading 0.5～2kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242150.2A CN105886985A (en) | 2016-04-18 | 2016-04-18 | Hot galvanizing method for ultralong steel parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242150.2A CN105886985A (en) | 2016-04-18 | 2016-04-18 | Hot galvanizing method for ultralong steel parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105886985A true CN105886985A (en) | 2016-08-24 |
Family
ID=56704028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610242150.2A Pending CN105886985A (en) | 2016-04-18 | 2016-04-18 | Hot galvanizing method for ultralong steel parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105886985A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732814A (en) * | 2012-07-04 | 2012-10-17 | 成都铁塔厂 | Hot-dip galvanizing technology |
| CN103774074A (en) * | 2012-10-25 | 2014-05-07 | 枫丹控股股份有限公司 | Flux compositions for steel galvanization |
-
2016
- 2016-04-18 CN CN201610242150.2A patent/CN105886985A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732814A (en) * | 2012-07-04 | 2012-10-17 | 成都铁塔厂 | Hot-dip galvanizing technology |
| CN103774074A (en) * | 2012-10-25 | 2014-05-07 | 枫丹控股股份有限公司 | Flux compositions for steel galvanization |
Non-Patent Citations (1)
| Title |
|---|
| 段慎修: "《矿山井简装备防腐蚀技术》", 31 July 1992 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |