CN110565037A - production method of hot-dip galvanized workpiece with uniform surface lines - Google Patents
production method of hot-dip galvanized workpiece with uniform surface lines Download PDFInfo
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- CN110565037A CN110565037A CN201910996593.4A CN201910996593A CN110565037A CN 110565037 A CN110565037 A CN 110565037A CN 201910996593 A CN201910996593 A CN 201910996593A CN 110565037 A CN110565037 A CN 110565037A
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- workpiece
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- pool
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Classifications
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- 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
- C23C2/003—Apparatus
-
- 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
Abstract
the invention relates to a production method of a hot-dip galvanized workpiece with uniform surface grains, which comprises the steps of cleaning, degreasing, pickling, washing, drying, dipping in a plating assistant solution, hanging and suspending the workpiece, putting the workpiece into a hot-dip zinc pool, forming constant and uniform ripples on a zinc liquid layer on the surface of the pool by vibrators on two sides of the hot-dip zinc pool, and finally forming a stripe zinc coating parallel to the liquid surface on the surface of the workpiece. The zinc coating on the surface of the workpiece prepared by the invention can be in a stripe shape, a new line pattern is added on the surface of the galvanized workpiece, and the obtained workpiece with the stripe surface has special uniform gloss and can finish hot dip galvanizing at the same time.
Description
Technical Field
the invention relates to a production method of a hot-dip galvanized workpiece, in particular to a production method of a hot-dip galvanized workpiece with uniform surface lines.
background
the hot dip galvanizing is characterized in that a cleaned iron part is immersed in a zinc bath to react steel and molten zinc to generate an alloyed involucra, so that a substrate and a coating are combined, and the hot dip galvanizing has the advantages of uniform coating, strong adhesive force, long service life and the like, is frequently used in industrial metal workpieces, and is widely applied to the fields of automobiles, buildings, household appliances, chemical industry, machinery, petroleum, metallurgy, light industry, traffic, electric power, aviation, ocean engineering and the like.
The coating of the hot dip galvanized workpiece after hot dip galvanizing is a smooth and bright zinc coating. The smooth galvanized workpiece surface has a strong function of reflecting light like a mirror surface, and has strong decoration to a certain extent. However, under certain circumstances, a smooth galvanized surface is not fully suitable: when an additional coating is required to be added on the galvanized surface, the adhesion of the coating on the smooth surface is insufficient, and the coating is easy to peel off; when the workpiece is used in a building or on a surface, the smooth surface coating generates mirror reflection, and light pollution is easy to generate under sunlight, so that residents feel uncomfortable; in addition, the smooth surface coating has the undesirable characteristics of easy fingerprint retention, scratch retention and the like.
in the prior art, a hot-dip galvanized workpiece can be immersed into a passivation solution in the subsequent passivation treatment, and the passivation solution and a zinc coating undergo a chemical reaction to enable the surface of the zinc coating to form light diffuse reflection on the light so as to achieve the effect of frosted surface; or after galvanization, the surface is polished by quartz sand blasting to form a frosted surface. But the sandblasted surfaces obtained by the above methods are all in the form of dots.
Disclosure of Invention
the invention aims to provide a production method of a hot-dip galvanized workpiece with uniform strip-shaped lines on the surface, the prepared zinc coating on the surface of the workpiece can be in a strip shape, a new line pattern is added on the surface of the galvanized workpiece, and the obtained workpiece with the strip-shaped surface has special uniform gloss and can be finished during hot-dip galvanizing.
The technical scheme of the invention is realized as follows:
a production method of a hot dip galvanized workpiece with uniform surface grains comprises the following production steps:
A. Cleaning, degreasing, pickling and washing a workpiece, drying the workpiece, soaking in an auxiliary plating solution, hanging the workpiece by a hanger, and putting the workpiece into a hot-dip zinc pool;
B. After the preset soaking time, poking the floating ash impurity layer on the surface of the hot-dip galvanizing pool to the side of the pool;
C. starting vibrators on two sides of the hot-dip zinc pool, and immersing vibration ends of the vibrators into zinc liquid of the hot-dip zinc pool to form constant and uniform ripples on the zinc liquid layer on the surface of the pool;
D. slowly lifting the hanger at a constant speed, and forming a stripe zinc coating parallel to the liquid level on the surface of the workpiece through the surface zinc liquid vibration layer;
E. and (4) completely hoisting the workpiece away from the zinc liquid, and performing subsequent passivation, rinsing and drying procedures to finish the production of the workpiece.
The other end of the vibrator is connected with a motor, a rotating shaft of the motor is connected with a shaft a, the shaft a is meshed with a bevel gear b of a shaft b through a bevel gear a at the end part, a bevel gear c of the shaft b is meshed with a bevel gear d at the end part of the shaft c, and an eccentric wheel is arranged at the tail end of the shaft c and is positioned in a shell of the vibration end; the vibration end is connected with the fixed end of the vibrator through a spring;
A reduction gearbox is arranged in the motor, or the motor is provided with a frequency converter, and the rotating speed of the motor can be controlled by adjusting the reduction gear ratio or adjusting the frequency converter, so that different vibration frequencies are finally realized; a square protective shell is arranged outside the motor, the upper half parts of a shaft a, a shaft b and a shaft c are sealed in the shell at the fixed end of the vibrator, the lower half part of the shaft c is sealed in the shell at the vibrating end, the rotating speed of the motor is transmitted by a shaft and a gear, so that an eccentric wheel at the tail end of the shaft c is tightly attached to the inner wall of the shell at the vibrating end to rotate, the shell at the vibrating end is vibrated, and the liquid level of zinc liquid is stirred to generate ripples; when the vibration end shell vibrates, the spring is used as a vibration end point, and the fixed end of the vibrator does not generate obvious vibration along with the vibration end due to the damping effect of the spring.
the vibrators are uniformly distributed on two sides of the hot-dip zinc pool in quantity; the two sides of the vibrator are uniformly distributed, so that the waves formed by the zinc liquid uniformly act on the surfaces of the left side and the right side of the workpiece, and the phenomena that the waves on one side are obvious and the waves on the other side are shallow are avoided;
the vibration end immersed in the zinc liquid of the hot-dip zinc pool can be in a flat arc shape; the vibration end is flat, the plane faces the workpiece, and the liquid level is easily stirred to form a required waveform;
The vibration frequency of the vibrator is 1-10 Hz; the vibration frequency is not suitable to be too high, the wave crest and the wave trough of the formed waveform are too close to each other due to the viscous property of the zinc liquid, the waveform is messy and cannot be controlled, and if the waveform is in a lower frequency, the waveform is tidy and the interference phenomenon with the waveforms generated by other vibrators cannot occur; the hanging speed is slow, generally between 3-8cm/s, and the vibration frequency needs to be matched with the hanging speed.
the depth of the vibration end immersed into the zinc liquid in the hot-dip zinc pool is 30-50 mm; at the depth, the zinc liquid surface can form a uniform waveform, and the zinc liquid below the liquid surface is not excessively stirred, so that the hung workpiece is shaken.
The production method of the hot-dip galvanized workpiece with uniform surface lines is applied to the strip-shaped hot-dip galvanized workpiece. The production method has good effect when being applied to workpieces which are symmetrical on the left side and the right side, the formed waveforms can not be disordered, particularly, zinc liquid can be vertically hung out from the workpieces with simple geometric shapes such as round pipes, square pipes, round bars and the like, a good effect can be achieved, and the surfaces of the workpieces can form regular stripe-shaped surfaces.
the workpiece prepared by the production method of the hot dip galvanizing workpiece with the uniform surface lines can be applied to steel structure building outer decorative columns and urban interior landscape type electric power iron towers. In the current urban building, various public buildings and public settings can become one of urban landscapes after being beautified, and the urban image decoration function is achieved. The hot dip galvanizing workpiece with uniform surface lines produced by the invention can meet the requirement.
Compared with the prior art, the invention has the prominent substantive characteristics and remarkable progress that:
1. The hot dip galvanizing workpiece with the uniform strip-shaped grains on the surface, which is prepared by the production method, adds a new grain pattern on the surface of the galvanizing workpiece, and the obtained workpiece with the strip-shaped surface has special uniform gloss, avoids reflected light pollution, does not appear obvious in appearance after being slightly scratched or collided, and can keep the surface beautiful for a long time.
2. in the production process, a new process is not required to be generated, and the product produced by the method can be realized only by adding part of equipment on the basis of the original process equipment.
3. the hot dip galvanizing workpiece with the uniform strip-shaped lines on the surface can be used on various urban internal structure buildings, billboard brackets and landscape power poles, and after passivation and coloring, compared with the traditional painting decoration surface, the hot dip galvanizing workpiece has the advantages of rich line colors, difficulty in falling off and workpiece protection.
Drawings
FIG. 1 is a schematic exterior view of a three-dimensional structure according to the present invention;
FIG. 2 is a schematic view of the internal structure of a single vibrator according to the present invention;
the component names and serial numbers in the figure are: 1. hot dipping a zinc pool; 2. a motor; 3. a vibrator; 31. a shaft a; 32. a shaft b; 33. an axis c; 34. a bevel gear a; 35. a bevel gear b; 36. a bevel gear c; 37. a bevel gear d; 38. an eccentric wheel; 4. a vibrating end; 5. a spring.
Detailed Description
example 1
A production method of a hot dip galvanizing workpiece with uniform lines on the surface of a steel bar comprises the following production steps:
A. Cleaning and deoiling a 45# steel bar workpiece with the diameter of 80mm, pickling, washing with water, drying, hanging the end part of the steel bar workpiece, and vertically placing the steel bar workpiece into a hot-dip zinc pool;
B. After the preset soaking time, poking the floating ash impurity layer on the surface of the hot-dip galvanizing pool to the side of the pool;
C. Starting vibrators 3 on two sides of a hot-dip zinc pool, and immersing a vibration end 4 of a flat arc vibrator 3 into zinc liquid of the hot-dip zinc pool 1 to form constant and uniform ripples on the zinc liquid layer on the surface of the pool;
D. Slowly lifting the hanger at a constant speed, and forming a stripe zinc coating parallel to the liquid level on the surface of the workpiece through the surface zinc liquid vibration layer;
E. completely hanging away the workpiece of the zinc liquid, and carrying out subsequent passivation, rinsing and drying procedures to finish the production of the workpiece;
The other end of the vibrator 3 is connected with a motor 2, the rotating shaft of the motor 2 is connected with a shaft a31, the shaft a31 is meshed with a bevel gear b35 of a shaft b32 through a bevel gear a34 at the end part, a bevel gear c36 of the shaft b32 is meshed with a bevel gear d37 at the end part of a shaft c33, and an eccentric wheel 38 is arranged at the tail end of a shaft c33 and is positioned in a shell of the vibrating end 4; the vibration end 4 is connected with the fixed end of the vibrator 3 through a spring 5;
the vibrators 3 are arranged on two sides of the hot-dip zinc pool 1, and each side is provided with 1 vibrator;
the vibration frequency of the vibrator 3 is 1Hz, and the hanging and lifting speed is 3 cm/s;
The depth of the vibration end 4 immersed into the zinc liquid in the hot-dip zinc pool 1 is 30 mm;
finally, the steel structure building outer decorative column is produced.
Example 2
A production method of a hot-dip galvanized workpiece with steel pipes with uniform surface grains comprises the following production steps:
A. cleaning and degreasing, pickling and washing a Q235 steel pipe workpiece with the outer diameter of 200mm, drying the workpiece, hanging the end of the steel pipe workpiece by a hanger, and vertically placing the steel pipe workpiece into a hot-dip zinc pool;
B. after the preset soaking time, poking the floating ash impurity layer on the surface of the hot-dip galvanizing pool to the side of the pool;
C. Starting vibrators 3 on two sides of a hot-dip zinc pool, and immersing a vibration end 4 of a flat arc vibrator 3 into zinc liquid of the hot-dip zinc pool 1 to form constant and uniform ripples on the zinc liquid layer on the surface of the pool;
D. Slowly lifting the hanger at a constant speed, and forming a stripe zinc coating parallel to the liquid level on the surface of the workpiece through the surface zinc liquid vibration layer;
E. completely hanging away the workpiece of the zinc liquid, and carrying out subsequent passivation, rinsing and drying procedures to finish the production of the workpiece;
the other end of the vibrator 3 is connected with the motor 2, a rotating shaft connecting shaft a31 of the motor 2 is connected, a shaft a31 is connected with a shaft b32 through a universal shaft, a shaft b32 is connected with a shaft c33 through a universal shaft, and the tail end of the shaft c33 is provided with an eccentric wheel 38 which is positioned in a shell of the vibration end 4; the vibration end 4 is connected with the fixed end of the vibrator 3 through a spring 5; wherein the connection angle between the shafts is greater than 90 deg..
the vibrators 3 are arranged on two sides of the hot-dip zinc pool 1, and 2 vibrators are arranged on each side;
The vibration frequency of the vibrator 3 is 10Hz, and the hanging and lifting speed is 8 cm/s;
the depth of the vibration end 4 immersed into the zinc liquid of the hot-dip zinc pool 1 is 50 mm;
and finally, producing the beam steel pipe of the urban landscape type electric power iron tower.
Claims (8)
1. A production method of a hot dip galvanizing workpiece with uniform surface grains is characterized in that: comprises the following production steps:
A. cleaning, degreasing, pickling and washing a workpiece, drying the workpiece, soaking in an auxiliary plating solution, hanging the workpiece by a hanger, and putting the workpiece into a hot-dip zinc pool;
B. After the preset soaking time, poking the floating ash impurity layer on the surface of the hot-dip galvanizing pool to the side of the pool;
C. Starting vibrators (3) on two sides of the hot-dip zinc pool, and immersing vibrating ends (4) of the vibrators (3) into a zinc liquid of the hot-dip zinc pool (1) to form constant and uniform ripples on the zinc liquid layer on the surface of the pool;
D. Slowly lifting the hanger at a constant speed, and forming a stripe zinc coating parallel to the liquid level on the surface of the workpiece through the surface zinc liquid vibration layer;
E. And (4) completely hoisting the workpiece away from the zinc liquid, and performing subsequent passivation, rinsing and drying procedures to finish the production of the workpiece.
2. the method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1, wherein the method comprises the following steps of: the other end of the vibrator (3) is connected with a motor (2), a rotating shaft of the motor (2) is connected with a shaft a (31), the shaft a (31) is meshed with a bevel gear b (35) of a shaft b (32) through a bevel gear a (34) at the end part, a bevel gear c (36) of the shaft b (32) is meshed with a bevel gear d (37) at the end part of a shaft c (33), and the tail end of the shaft c (33) is provided with an eccentric wheel (38) which is positioned in a shell of the vibrating end (4); the vibration end (4) is connected with the fixed end of the vibrator (3) through a spring (5).
3. The method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1, wherein the method comprises the following steps of: the vibrators (3) are uniformly distributed on two sides of the hot-dip zinc pool (1) in number.
4. the method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1, wherein the method comprises the following steps of: the vibrating end (4) immersed in the zinc liquid of the hot-dip zinc pool (1) can be in a flat arc shape.
5. The method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1, wherein the method comprises the following steps of: the vibration frequency of the vibrator (3) is 1-10 Hz.
6. the method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1, wherein the method comprises the following steps of: the vibration end (4) is immersed into the zinc liquid of the hot dipping zinc pool (1) to a depth of 30-50 mm.
7. The method for producing the hot dip galvanized workpiece with the uniform surface texture as claimed in claim 1 is applied to the long strip-shaped hot dip galvanized workpiece.
8. the workpiece prepared by the method for producing the hot dip galvanized workpiece with the uniform surface texture according to the claim 1 can be applied to steel structure building outer decorative columns and urban interior landscape type electric power iron towers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996593.4A CN110565037A (en) | 2019-10-19 | 2019-10-19 | production method of hot-dip galvanized workpiece with uniform surface lines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996593.4A CN110565037A (en) | 2019-10-19 | 2019-10-19 | production method of hot-dip galvanized workpiece with uniform surface lines |
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| CN110565037A true CN110565037A (en) | 2019-12-13 |
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| CN201910996593.4A Pending CN110565037A (en) | 2019-10-19 | 2019-10-19 | production method of hot-dip galvanized workpiece with uniform surface lines |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073279A (en) * | 2021-03-24 | 2021-07-06 | 重庆广仁铁塔制造有限公司 | Sub-photochemical process for surface of low-manganese-content steel member of power iron tower and sub-photochemical iron tower |
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| CN101253422A (en) * | 2005-08-31 | 2008-08-27 | 默克专利股份公司 | Methods for producing a structured sol-gel layer |
| CN203613250U (en) * | 2013-09-30 | 2014-05-28 | 河北钢铁股份有限公司唐山分公司 | Energy-saving device of galvanized zinc pot |
| JP2014532814A (en) * | 2011-11-11 | 2014-12-08 | ティッセンクルップ スチール ヨーロッパ アクチェンゲゼルシャフトＴｈｙｓｓｅｎＫｒｕｐｐ Ｓｔｅｅｌ Ｅｕｒｏｐｅ ＡＧ | Method and apparatus for hot dipping a metal strip with a metal coating |
| CN105779921A (en) * | 2016-05-16 | 2016-07-20 | 安徽恒兴镀锌有限公司 | Zinc plating technology achieving vibrating dezincification |
-
2019
- 2019-10-19 CN CN201910996593.4A patent/CN110565037A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101253422A (en) * | 2005-08-31 | 2008-08-27 | 默克专利股份公司 | Methods for producing a structured sol-gel layer |
| JP2014532814A (en) * | 2011-11-11 | 2014-12-08 | ティッセンクルップ スチール ヨーロッパ アクチェンゲゼルシャフトＴｈｙｓｓｅｎＫｒｕｐｐ Ｓｔｅｅｌ Ｅｕｒｏｐｅ ＡＧ | Method and apparatus for hot dipping a metal strip with a metal coating |
| CN203613250U (en) * | 2013-09-30 | 2014-05-28 | 河北钢铁股份有限公司唐山分公司 | Energy-saving device of galvanized zinc pot |
| CN105779921A (en) * | 2016-05-16 | 2016-07-20 | 安徽恒兴镀锌有限公司 | Zinc plating technology achieving vibrating dezincification |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073279A (en) * | 2021-03-24 | 2021-07-06 | 重庆广仁铁塔制造有限公司 | Sub-photochemical process for surface of low-manganese-content steel member of power iron tower and sub-photochemical iron tower |
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Application publication date: 20191213 |
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