CN112501528A - Surface protection type thin steel plate machining process - Google Patents
Surface protection type thin steel plate machining process Download PDFInfo
- Publication number
- CN112501528A CN112501528A CN202011366670.7A CN202011366670A CN112501528A CN 112501528 A CN112501528 A CN 112501528A CN 202011366670 A CN202011366670 A CN 202011366670A CN 112501528 A CN112501528 A CN 112501528A
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- CN
- China
- Prior art keywords
- workpiece
- steel plate
- thin steel
- processing
- zinc
- 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.)
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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
- C23C2/02—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
- C23C2/26—After-treatment
-
- 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
- C23C2/40—Plates; Strips
Landscapes
- 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 discloses a surface protection type thin steel plate processing technology, which is complex in processing, but the quality of the produced product can be ensured, and the surface protection type thin steel plate processing technology is characterized in that a zinc ingot is melted at high temperature, some auxiliary materials are put in the zinc ingot, and then a metal structural member is immersed in a zinc plating bath, so that a zinc layer is attached to the metal structural member, the structure is relatively stable and firm, and a better use prospect is brought.
Description
Technical Field
The invention relates to the technical field of steel plate processing, in particular to a surface protection type thin steel plate processing technology.
Background
The steel sheet processing technique combines both a substrate and a plated layer by reacting molten metal with an iron substrate by hot galvanizing to produce an alloy layer. The hot galvanizing is carried out by pickling steel parts, then plating is assisted in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride after pickling, and then the steel parts are sent into a hot dipping tank. The hot galvanizing has the advantages of uniform plating, strong adhesive force, long service life and the like.
The existing hot galvanizing sheet processing technology has simple inspection procedures and can not ensure the product quality.
Disclosure of Invention
The invention mainly aims to provide a surface protection type thin steel plate processing technology which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a surface protection type thin steel plate processing technology is characterized in that: comprises the following steps;
a. transporting the workpiece to a processing position, installing operation videos on processing equipment, and installing a small detection tank beside each processing tank for step detection;
b. degreasing: introducing additives to remove oil until the workpiece is completely soaked and the soaking oil is completely removed;
c. acid washing: then placing the soaked workpiece in an acid pickling tank, and adding an additive to facilitate rust removal and prevent over corrosion of the workpiece;
d. dipping plating assistant agent: then soaking the pickled workpiece by an additive to ensure that the workpiece has certain activity;
e. drying and preheating: preheating the workpiece at 80-140 deg.c to prevent deformation of the workpiece caused by abrupt temperature rise during immersion plating, and eliminating residual water to avoid zinc explosion;
f. hot dipping: then melting the zinc ingot at high temperature, putting some auxiliary materials, and then immersing the metal structural member into a galvanizing bath to enable a zinc layer to be attached to the metal structural member;
g. finishing: cleaning the processed hot galvanizing surface to prevent impurities from being adsorbed on the surface of a workpiece to cause quality influence;
h. and (3) cooling: then cooling the machined workpiece;
i. passivation: in order to improve the corrosion resistance of the workpiece;
j. and (4) checking: the appearance of the plating layer is checked to be bright and delicate, and the plating layer has no sagging and wrinkle.
Preferably, the additives added in steps b, c and d are a degreasing cleaning agent, a corrosion inhibitor and a bonding agent respectively.
Preferably, said step of cooling: the cooling water can not be cooled by cold water, and warm water is used for preventing the workpiece from cracking due to cold heat.
Preferably, the steps are all that one workpiece is extracted from each processing pool, and the corresponding small reaction pools are placed for repeated tests, so that the phenomenon that the processing is uneven and is inconvenient to find due to the fact that additives are excessively absorbed by other tools in the process is avoided.
Compared with the prior art, the invention has the following beneficial effects: the surface protection type thin steel plate processing technology is complex in processing, zinc ingots are melted at high temperature, and materials such as: (the workpiece is dried by adopting a drying furnace device, the drying temperature is high, the plating assistant solution usually adopts double-salt ZnCL2 ● 2NH4CL solution, but the ratio of ammonium chloride to zinc chloride is about 0.4-0.8, secondly, the workpiece is rarely made into effective special drying equipment after plating assistant, and the workpiece is dried mainly by the residual heat from the plating assistant tank, namely, the triple-salt ZnCL2 ● 3NH4CL solution or the quadruple-salt ZnCL2 ● 4NH4CL solution, but the ratio of ammonium chloride to zinc chloride is 1.2-1.6), the adsorption force and the hardness in the galvanizing process are stronger, the reaction efficiency is higher, then the metal structural member is immersed into the galvanizing tank, the product structure is more stable, secondly, each procedure of the method is detected by sampling through a small reaction tank, the small reaction tank is the same as the processing tank, and each processing tank is additionally provided with a small reaction tank, so that the workpiece is repeatedly tested and compared with the workpiece in the processing tank, if the quality is poor, the workpiece is reworked, therefore, the product quality produced by the production process can be well guaranteed, the whole surface protection type thin steel plate machining process is simple in structure and convenient to operate, and the using effect is better than that of the traditional mode.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
1. A surface protection type thin steel plate processing technology is characterized in that: comprises the following steps;
a. transporting the workpiece to a processing position, installing operation videos on processing equipment, and installing a small detection tank beside each processing tank for step detection;
b. degreasing: introducing additives to remove oil until the workpiece is completely soaked and the soaking oil is completely removed;
c. acid washing: then placing the soaked workpiece in an acid pickling tank, and adding an additive to facilitate rust removal and prevent over corrosion of the workpiece;
d. dipping plating assistant agent: then soaking the pickled workpiece by an additive to ensure that the workpiece has certain activity;
e. drying and preheating: preheating the workpiece at 80-140 deg.c to prevent deformation of the workpiece caused by abrupt temperature rise during immersion plating, and eliminating residual water to avoid zinc explosion;
f. hot dipping: then melting the zinc ingot at high temperature, putting some auxiliary materials, and then immersing the metal structural member into a galvanizing bath to enable a zinc layer to be attached to the metal structural member;
g. finishing: cleaning the processed hot galvanizing surface to prevent impurities from being adsorbed on the surface of a workpiece to cause quality influence;
h. and (3) cooling: then cooling the machined workpiece;
i. passivation: in order to improve the corrosion resistance of the workpiece;
j. and (4) checking: the appearance of the plating layer is checked to be bright and delicate, and the plating layer has no sagging and wrinkle.
Further, the additives added in the steps b, c and d are a degreasing cleaning agent, a corrosion inhibitor and a bonding agent respectively.
Further, the step of cooling: the cooling water can not be cooled by cold water, and warm water is used for preventing the workpiece from cracking due to cold heat.
Furthermore, the above steps are all to extract a workpiece from each processing pool and place the corresponding small reaction pool for repeated tests, so that the phenomenon that the processing is uneven and is inconvenient for people to find due to the fact that additives are excessively absorbed by other tools in the process is avoided.
The surface protection type thin steel plate processing technology passes repeated certification of multiple experiments, and has higher product quality guarantee rate than the existing thin plate processing technology.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A surface protection type thin steel plate processing technology is characterized in that: comprises the following steps;
a. transporting the workpiece to a processing position, installing operation videos on processing equipment, and installing a small detection tank beside each processing tank for step detection;
b. degreasing: introducing additives to remove oil until the workpiece is completely soaked and the soaking oil is completely removed;
c. acid washing: then placing the soaked workpiece in an acid pickling tank, and adding an additive to facilitate rust removal and prevent over corrosion of the workpiece;
d. dipping plating assistant agent: then soaking the pickled workpiece by an additive to ensure that the workpiece has certain activity;
e. drying and preheating: preheating the workpiece at 80-140 deg.c to prevent deformation of the workpiece caused by abrupt temperature rise during immersion plating, and eliminating residual water to avoid zinc explosion;
f. hot dipping: then melting the zinc ingot at high temperature, putting some auxiliary materials, and then immersing the metal structural member into a galvanizing bath to enable a zinc layer to be attached to the metal structural member;
g. finishing: cleaning the processed hot galvanizing surface to prevent impurities from being adsorbed on the surface of a workpiece to cause quality influence;
h. and (3) cooling: then cooling the machined workpiece;
i. passivation: in order to improve the corrosion resistance of the workpiece;
j. and (4) checking: the appearance of the plating layer is checked to be bright and delicate, and the plating layer has no sagging and wrinkle.
2. The surface-guarded thin steel plate machining process as claimed in claim 1, wherein: and the additives added in the steps b, c and d are a degreasing cleaning agent, a corrosion inhibitor and a bonding agent respectively.
3. The surface-guarded thin steel plate machining process as claimed in claim 1, wherein: the step of cooling: the cooling water can not be cooled by cold water, and warm water is used at the temperature of 30-70 ℃ to prevent the workpiece from cracking due to cold heat.
4. The surface-guarded thin steel plate machining process as claimed in claim 1, wherein: the steps are that a workpiece is extracted from each processing pool, and the corresponding small reaction pools are placed for repeated tests, so that the phenomenon that the processing is uneven and is inconvenient to find due to the fact that additives are excessively absorbed by other tools in the processes is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366670.7A CN112501528A (en) | 2020-11-30 | 2020-11-30 | Surface protection type thin steel plate machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366670.7A CN112501528A (en) | 2020-11-30 | 2020-11-30 | Surface protection type thin steel plate machining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112501528A true CN112501528A (en) | 2021-03-16 |
Family
ID=74967417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011366670.7A Withdrawn CN112501528A (en) | 2020-11-30 | 2020-11-30 | Surface protection type thin steel plate machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112501528A (en) |
-
2020
- 2020-11-30 CN CN202011366670.7A patent/CN112501528A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210316 |