CN110965092A - Chrome plating process for surface of plate making roller - Google Patents
Chrome plating process for surface of plate making roller Download PDFInfo
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- CN110965092A CN110965092A CN201911186150.5A CN201911186150A CN110965092A CN 110965092 A CN110965092 A CN 110965092A CN 201911186150 A CN201911186150 A CN 201911186150A CN 110965092 A CN110965092 A CN 110965092A
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- Prior art keywords
- degreasing
- roller
- plate making
- plating
- chromium
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The chrome plating process for the surface of the plate making roller is characterized by comprising the following process steps: step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle; step S2, carrying out copper plating and chromium plating treatment on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling; and step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a surface chromium plating process for a plate making roller.
Background
In the prior art, an engraved groove is formed on a steel plate making roller after the steel plate making roller is engraved by an electric engraving needle, the steel plate making roller is soaked in a degreasing groove with a degreasing solvent for degreasing before the surface of the steel plate making roller is subjected to chrome plating, and due to the existence of the engraved groove of the steel plate making roller, the degreasing difficulty is increased, the cleaning efficiency is reduced, and the problem of improper cleaning is solved. Meanwhile, after the oil and the degreasing are finished on the surface of the steel plate roller, the surface of the steel plate roller needs to be subjected to chromium plating treatment, which is usually realized by adopting copper-nickel-chromium or nickel-chromium, and the traditional common copper-nickel-chromium or nickel-chromium is not suitable for the surface chromium plating production of the existing steel plate roller due to the improvement of the national environmental protection requirement and the greater pollution of the nickel plating layer to the environment.
Disclosure of Invention
The invention aims to provide a process for plating chromium on the surface of a plate making roller, which aims to solve the problems in the prior art that: 1. the existence of steel material system version roller sculpture recess leads to the deoiling degrease degree of difficulty to increase, clears away efficiency and reduces to along with the problem of clearing away not in place. 2. The traditional and commonly used technology for plating copper, nickel and chromium or nickel and chromium has the technical problem of great environmental pollution.
The invention provides a process for plating chromium on the surface of a plate making roller, which is characterized by comprising the following process steps: step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle; step S2, carrying out copper plating and chromium plating treatment on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling; and step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating.
Further, step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle; the method comprises the steps that a steel plate making roller engraved by an electric engraving needle is immersed in a degreasing tank with a degreasing agent solution, ultrasonic cleaning equipment is adopted to provide radiation waves for the degreasing tank, micro bubbles in liquid in the degreasing tank can keep vibrating under the action of sound waves, and the surface of the plate making roller engraved by the electric engraving needle is degreased, degreased and cleaned by regularly exchanging the polarities of positive and negative electrified electrodes of the ultrasonic equipment.
Further, in the degreasing and degreasing treatment process of the surface of the plate making roller, the ultrasonic equipment is normally connected with the positive electrode and the negative electrode, so that after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are reversely connected, after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are connected back to the normal power-on state again, and the operation is repeated for more than 20 minutes.
Further, step S2, copper plating and chromium plating are carried out on the surface of the steel plate roller which is degreased and deoiled by ultrasonic; taking the steel plate making roller subjected to ultrasonic degreasing out of the degreasing tank, soaking the roller in a first electroplating tank for primary copper plating after surface water washing, taking the roller out of the degreasing tank for primary copper plating, soaking the roller in a second electroplating tank for secondary copper plating after surface water washing, taking the roller out of the second electroplating tank for secondary copper plating, soaking the roller in a third electroplating tank after surface water washing, and performing surface chromium plating treatment.
Further, the thickness of the primary copper plating layer of the steel plate roller is 5-30 um, the thickness of the secondary copper plating layer is 80-120 um, and the thickness of the surface chromium plating layer is 10-35 um; the primary copper plating layer is used for replacing a copper oxide plating layer or a nickel plating layer in the prior art, and the secondary copper plating layer is used for replacing the nickel plating layer in the center of the prior art.
Further, the thickness of the primary copper plating layer is 10um, the thickness of the secondary copper plating layer is 100um, and the thickness of the surface chromium plating layer is 12 um.
Further, step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating; and aiming at the steel plate making roller after the surface chromium plating is finished, carrying out chromium paper grinding on burrs formed after the engraving position of an electric engraving needle of the steel plate making roller is subjected to chromium plating, and removing and polishing chromium plating burrs on the surface.
Further, the chromium paper used for grinding the chromium coating layer on the surface of the steel plate roller is 50-60 meshes.
The invention has the beneficial effects that: the method has the advantages that the surface of the steel plate making roller is cleaned mistakenly and effectively, the cleaning efficiency is improved, the oil stain accumulation in the engraved groove of the plate making roller is avoided, meanwhile, the environmental protection performance is improved compared with the traditional copper-nickel-chromium or nickel-chromium coating process, and the production cost of the chromium plating on the surface of the steel plate making roller and the treatment cost of industrial wastewater are effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
FIG. 1 is a schematic diagram of the process flow of the chrome plating on the surface of the plate-making roller.
Detailed Description
Fig. 1, discussed below, and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitable type of platemaking roll surface chrome plating process. The terminology used to describe various embodiments is exemplary. It should be understood that these are provided solely to aid in the understanding of this specification and their use and definition do not limit the scope of the invention in any way. The use of the terms first, second, etc. to distinguish between objects having the same set of terms is not intended to represent a temporal order in any way, unless otherwise specifically stated. A group is defined as a non-empty group containing at least one element.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention. It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each exemplary embodiment should generally be considered as available for similar features or aspects in other exemplary embodiments.
A schematic sketch of the process flow of the platemaking roll surface chrome plating process of the present invention according to an exemplary embodiment is shown in figure 1,
in this embodiment, a process for plating chromium on the surface of a plate-making roll is characterized by comprising the following process steps: step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle; step S2, carrying out copper plating and chromium plating treatment on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling; and step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating.
In the embodiment, in step S1, ultrasonic degreasing and degreasing treatment is carried out on the surface of the steel plate making roller engraved by the electric engraving needle; the method comprises the steps that a steel plate making roller engraved by an electric engraving needle is immersed in a degreasing tank with a degreasing agent solution, ultrasonic cleaning equipment is adopted to provide radiation waves for the degreasing tank, micro bubbles in liquid in the degreasing tank can keep vibrating under the action of sound waves, and the surface of the plate making roller engraved by the electric engraving needle is degreased, degreased and cleaned by regularly exchanging the polarities of positive and negative electrified electrodes of the ultrasonic equipment.
In the degreasing and degreasing treatment process of the surface of the plate making roller, firstly, the ultrasonic equipment is normally connected with the positive electrode and the negative electrode, so that after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are reversely connected, after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are connected back to the normal power-on state again, and the operation is repeated for more than.
The positive electrode and the negative electrode of the power supply of the ultrasonic equipment are repeatedly exchanged and switched, so that the ultrasonic equipment can effectively clean oil stains in the carving groove on the steel plate making roller, the switching time of the positive electrode and the negative electrode of the power supply of the general ultrasonic equipment is 30 seconds each time, and the positive electrode and the negative electrode are sequentially and repeatedly switched and turned back until the surface oil stains are completely removed from the steel plate making roller in a degreasing groove with a degreasing agent solution. When the switching time of the positive electrode and the negative electrode of the power supply is more than 30 seconds each time, the efficiency of removing the surface grease from the plate making roller in batch cleaning is influenced, and if the switching time is less than 30 seconds, the effect of removing the surface grease from the plate making roller is reduced.
In the embodiment, in step S2, copper plating and chromium plating are carried out on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling; taking the steel plate making roller subjected to ultrasonic degreasing out of the degreasing tank, soaking the roller in a first electroplating tank for primary copper plating after surface water washing, taking the roller out of the degreasing tank for primary copper plating, soaking the roller in a second electroplating tank for secondary copper plating after surface water washing, taking the roller out of the second electroplating tank for secondary copper plating, soaking the roller in a third electroplating tank after surface water washing, and performing surface chromium plating treatment. The thickness of the primary copper plating layer of the steel plate roller is 5-30 um, the thickness of the secondary copper plating layer is 80-120 um, and the thickness of the surface chromium plating layer is 10-35 um; the primary copper plating layer is used for replacing a copper oxide plating layer or a nickel plating layer in the prior art, and the secondary copper plating layer is used for replacing the nickel plating layer in the center of the prior art. The thickness of the primary copper plating layer is 10um, the thickness of the secondary copper plating layer is 100um, and the thickness of the surface chromium plating layer is 12 um. The copper-chromium plating on the surface of the steel plate roller can effectively replace copper-nickel-chromium or nickel-chromium in the prior art, save the material cost and effectively meet the requirement of environmental protection. The process also effectively reduces the thickness of the whole electroplated layer, and simultaneously, along with the reduction of the thickness of the electroplated layer, the consumed electric energy can be greatly reduced, thereby saving the production cost.
In the embodiment, in step S3, chromium paper is used to grind the surface of the plate making roller after chromium plating; and aiming at the steel plate making roller after the surface chromium plating is finished, carrying out chromium paper grinding on burrs formed after the engraving position of an electric engraving needle of the steel plate making roller is subjected to chromium plating, and removing and polishing chromium plating burrs on the surface. The chromium paper used for grinding the chromium coating on the surface of the steel plate roller is 50-60 meshes. The chromium paper specification of less than 50 meshes easily causes the pulling damage of the chromium plating surface of the steel plate roller in the grinding process and influences the printing quality; the chromium paper specification is larger than 60 meshes, the surface treatment effect of the steel plate making roller is good, but the perimeter is treated, and the working efficiency is influenced.
The invention has the beneficial effects that: the method has the advantages that the surface of the steel plate making roller is cleaned mistakenly and effectively, the cleaning efficiency is improved, the oil stain accumulation in the engraved groove of the plate making roller is avoided, meanwhile, the environmental protection performance is improved compared with the traditional copper-nickel-chromium or nickel-chromium coating process, and the production cost of the chromium plating on the surface of the steel plate making roller and the treatment cost of industrial wastewater are effectively reduced.
In addition to the above embodiments, the present embodiment is based on the above preferred embodiments of the present invention, and the above description makes it possible for the worker to make various changes and modifications without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The chrome plating process for the surface of the plate making roller is characterized by comprising the following process steps:
step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle;
step S2, carrying out copper plating and chromium plating treatment on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling;
and step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating.
2. The platemaking roll surface chrome plating process according to claim 1,
step S1, performing ultrasonic degreasing and degreasing treatment on the surface of the steel plate making roller engraved by the electric engraving needle; the method comprises the steps that a steel plate making roller engraved by an electric engraving needle is immersed in a degreasing tank with a degreasing agent solution, ultrasonic cleaning equipment is adopted to provide radiation waves for the degreasing tank, micro bubbles in liquid in the degreasing tank can keep vibrating under the action of sound waves, and the surface of the plate making roller engraved by the electric engraving needle is degreased, degreased and cleaned by regularly exchanging the polarities of positive and negative electrified electrodes of the ultrasonic equipment.
3. The platemaking roll surface chrome plating process according to claim 2,
in the degreasing and degreasing treatment process of the surface of the plate making roller, firstly, the ultrasonic equipment is normally connected with the positive electrode and the negative electrode, so that after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are reversely connected, after degreasing and degreasing are carried out on the surface of the plate making roller for a period of time by the degreasing and degreasing agent solution, the positive electrode and the negative electrode are connected back to the normal power-on state again, and the operation is repeated for more than.
4. The platemaking roll surface chrome plating process according to claim 1,
step S2, carrying out copper plating and chromium plating treatment on the surface of the steel plate roller subjected to ultrasonic degreasing and deoiling; taking the steel plate making roller subjected to ultrasonic degreasing out of the degreasing tank, soaking the roller in a first electroplating tank for primary copper plating after surface water washing, taking the roller out of the degreasing tank for primary copper plating, soaking the roller in a second electroplating tank for secondary copper plating after surface water washing, taking the roller out of the second electroplating tank for secondary copper plating, soaking the roller in a third electroplating tank after surface water washing, and performing surface chromium plating treatment.
5. The platemaking roll surface chrome plating process according to claim 1,
the thickness of the primary copper plating layer of the steel plate roller is 5-30 um, the thickness of the secondary copper plating layer is 80-120 um, and the thickness of the surface chromium plating layer is 10-35 um; the primary copper plating layer is used for replacing a copper oxide plating layer or a nickel plating layer in the prior art, and the secondary copper plating layer is used for replacing the nickel plating layer in the center of the prior art.
6. The platemaking roll surface chrome plating process according to claim 5,
the thickness of the primary copper plating layer is 10um, the thickness of the secondary copper plating layer is 100um, and the thickness of the surface chromium plating layer is 12 um.
7. The platemaking roll surface chrome plating process according to claim 1,
step S3, adopting chromium paper to grind the surface of the plate making roller after chromium plating; and aiming at the steel plate making roller after the surface chromium plating is finished, carrying out chromium paper grinding on burrs formed after the engraving position of an electric engraving needle of the steel plate making roller is subjected to chromium plating, and removing and polishing chromium plating burrs on the surface.
8. The process for chrome-plating the surface of a plate-making roll according to claim 7, wherein the chrome paper used for grinding the chrome-plating layer on the surface of the steel plate-making roll is 50-60 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186150.5A CN110965092A (en) | 2019-11-28 | 2019-11-28 | Chrome plating process for surface of plate making roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911186150.5A CN110965092A (en) | 2019-11-28 | 2019-11-28 | Chrome plating process for surface of plate making roller |
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| CN110965092A true CN110965092A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911186150.5A Pending CN110965092A (en) | 2019-11-28 | 2019-11-28 | Chrome plating process for surface of plate making roller |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201648559U (en) * | 2010-04-16 | 2010-11-24 | 武汉钢铁(集团)公司 | Electrolysis degreasing unit adopting middle conductor method used in experiment |
| CN106891606A (en) * | 2017-03-07 | 2017-06-27 | 龙游运申制版有限公司 | A kind of roller is with without net processing technology |
-
2019
- 2019-11-28 CN CN201911186150.5A patent/CN110965092A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201648559U (en) * | 2010-04-16 | 2010-11-24 | 武汉钢铁(集团)公司 | Electrolysis degreasing unit adopting middle conductor method used in experiment |
| CN106891606A (en) * | 2017-03-07 | 2017-06-27 | 龙游运申制版有限公司 | A kind of roller is with without net processing technology |
Non-Patent Citations (1)
| Title |
|---|
| 谢丽虹等: "无氰碱铜在凹版制版行业的应用", 《材料保护》 * |
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