KR101566349B1 - Manufacturing Method of Carbon Fiber-Reinforced Plastics Roller - Google Patents
Manufacturing Method of Carbon Fiber-Reinforced Plastics Roller Download PDFInfo
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- KR101566349B1 KR101566349B1 KR1020150105646A KR20150105646A KR101566349B1 KR 101566349 B1 KR101566349 B1 KR 101566349B1 KR 1020150105646 A KR1020150105646 A KR 1020150105646A KR 20150105646 A KR20150105646 A KR 20150105646A KR 101566349 B1 KR101566349 B1 KR 101566349B1
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- roller
- plating
- shaft
- convex portion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/02—Mechanical treatment, e.g. finishing
- F16C2223/06—Mechanical treatment, e.g. finishing polishing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/30—Coating surfaces
- F16C2223/70—Coating surfaces by electroplating or electrolytic coating, e.g. anodising, galvanising
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a carbon fiber-reinforced plastic roller, and more particularly, to a method of manufacturing a roller in which a surface of a carbon fiber-reinforced plastic roller is plated through a chromium plating process.
In recent years, rollers using carbon fiber reinforced plastic (CFRP) have been developed to improve the weight reduction, high strength, high rigidity and high heat resistance of rollers.
However, when carbon fiber-reinforced plastic is used as a roller, the hardness is lower than that of a metal roller, causing surface damage due to the contact object, weak abrasion resistance, and short life span.
In order to solve such a problem, Japanese Unexamined Patent Application Publication Nos. 05-286057 and 05-286058 disclose a roller in which an electroless nickel plated layer is formed, and Japanese Laid-Open Patent Publication No. 05-171494 An electroless nickel plating layer and an electric nickel plating layer are formed, and a chromium plating layer is formed thereon to improve abrasion resistance.
However, since the surface of the carbon fiber-reinforced plastic roller must be treated by repeating the plating process, there is a problem that it is difficult to produce a high-quality product in a complicated process.
In addition, the surface of the roller is treated by wet plating at the time of forming the plating layer. Examples thereof include a carbon fiber-reinforced plastic roller for forming a nickel plating layer and a chromium plating layer by wet plating as disclosed in Korean Patent Publication No. 10-1481143.
Further, in order to simplify the process of the plating process and to increase the efficiency, Korean Patent Publication No. 10-1310124 discloses a method of coating a conductive resin on the surface of a carbon fiber-reinforced plastic roller by a method of producing a roller by dry plating instead of wet plating, A plated layer, and a chromium plated layer are formed. However, such a plating layer forming process takes a long time in the manufacturing process and has a disadvantage that the overall dimensional precision is lowered.
Therefore, in order to solve such a problem, as disclosed in Korean Patent Publication No. 10-1253727, a metallic sleeve made of a metal material having excellent rigidity such as stainless steel, aluminum alloy or the like is bonded to the outer surface of the roll core by a pressure fitting method, Discloses a method for easily forming a chromium plating layer on a roller.
However, the process of re-plating the carbon fiber-reinforced plastic roller by fitting the metal sleeve is not high in efficiency and requires a separate facility in addition to the equipment for plating, resulting in a high production cost.
The present invention has been conceived to solve the problems of the prior art as described above. It is an object of the present invention to provide a carbon fiber-reinforced plastic roller which is plated by a continuous process, thereby achieving high dimensional precision, light weight, high strength, Heat resistance, and high hardness.
According to another aspect of the present invention, there is provided a method of manufacturing a carbon fiber-reinforced plastic roller, the method including: machining both ends of a roller core made of carbon fiber-reinforced plastic; Axially machining the shaft at both ends of the roller core to produce a roller; Piercing the surface of the roller; The surface of the roller is subjected to electroless nickel plating to produce a roller having a nickel plated layer formed thereon; Subjecting the surface of the nickel plated roller to a copper plating process to produce a roller having a copper plating layer; A step of chrome plating the surface of the copper-plated roller to produce a roller having a chromium plating layer; And super-finishing the surface of the roller on which the chromium-plated layer is formed.
At this time, the step of manufacturing the roller is performed by combining a convex portion of the roller side surface formed in a multi-stage and a shaft having a multi-step concave portion corresponding thereto, and the center of the convex portion of the roller side surface is constrained to the concave portion of the shaft And the outer periphery of the convex portion of the roller side surface and the outer periphery of the concave portion of the shaft can be bonded.
In addition, the step of manufacturing the roller may be performed by combining a multi-stepped concave portion formed on the side surface of the roller and a shaft formed with a multi-step convex portion corresponding thereto, and the center of the convex portion of the shaft is constrained to the concave portion of the roller And the outer periphery of the convex portion of the shaft and the outer periphery of the concave portion of the roller side may be bonded.
In the present invention, the roughness Ry of the roller subjected to the piercing step is 12 to 13 S, and it is possible to perform grinding before and / or after the chrome plating treatment.
The plated carbon reinforced plastic plastic roller produced through the manufacturing method of the present invention exhibits high dimensional precision, light weight than metal roller, high strength, high rigidity, high heat resistance, and high hardness roller characteristics.
1 is a conceptual view of a process for producing a carbon fiber-reinforced plastic roller of the present invention.
2 is a cross-sectional view showing a coupling structure of a carbon fiber-reinforced plastic roller core and a shaft according to the present invention.
3 is a photograph showing a spraying test process of a sanding agent using a sandblaster.
4 is a photograph showing the surface of the roller of the present invention subjected to a spraying test of a sanding agent using a sandblaster.
Hereinafter, a method of manufacturing the carbon fiber reinforced plastic roller of the present invention will be described in detail.
A method of manufacturing a carbon fiber-reinforced plastic roller according to the present invention comprises the steps of: inner-diameter-machining both ends of a roller core made of carbon fiber-reinforced plastic, as shown in Fig. 1; Axially machining the shaft at both ends of the roller core to produce a roller; Piercing the surface of the roller; The surface of the roller is subjected to electroless nickel plating to produce a roller having a nickel plated layer formed thereon; Subjecting the surface of the nickel plated roller to a copper plating process to produce a roller having a copper plating layer; A step of chrome plating the surface of the copper-plated roller to produce a roller having a chromium plating layer; Precision finishing the surface of the roller on which the chromium plating layer is formed.
In the present invention, the roller core is made of carbon fiber-reinforced plastic and is made by joining the shaft to both ends of the roller core.
As shown in Fig. 2, both ends of the roller core material are subjected to an inner diameter machining by lathe machining to form a concave portion or a convex portion. At this time, the concave portion or the convex portion on the side surface of the roller is formed in multiple stages.
The shaft coupled to both end portions of the roller core member has a multi-stepped shape corresponding to the concave or convex portion on the side surface of the roller, and is formed into a shape that can be integrated by engagement. Further, the shaft is made of a metal material having excellent rigidity, either stainless steel or aluminum alloy.
In the present invention, the step of manufacturing the roller is performed by combining a convex portion of a roller side surface formed in a multi-stage and a shaft having a multi-step concave portion corresponding to the convex portion, and the
That is, the roller side surface and the shaft are tightly engaged with each other, and the outer circumferential surface is bonded by an adhesive, thereby firmly joining to form a roller.
In the present invention, the adhesive used for the bonding treatment should be one that can obtain a sufficient adhesive force between the carbon fiber-reinforced plastic and the metal material. Therefore, it is preferable to use an epoxy resin adhesive, and it is more preferable to use an insulating epoxy resin adhesive desirable.
Examples of such adhesives include an adhesive containing an epoxy resin containing a dicyclopentadiene skeleton, an adhesive containing an epoxy resin containing a terpene skeleton, an adhesive containing an epoxy resin containing a biphenyl skeleton, an epoxy containing a naphthalene skeleton An adhesive containing a resin, an adhesive containing an epoxy resin containing a polyvinyl butyral polystyrene copolymer, a phenol resin and a glycidyl ester can be mentioned, and Araldite 2011, 2012, 2013, 2014, 2015 , 2021, 2022, 2018, 2055, or the like may be used.
Since the bonding structure between the concave portion and the convex portion of the present invention is such that the adhesive is added to the deepest portion of the convex portion and the deepest portion of the concave portion, the surface of the roller to be plated becomes conductive and plating can be efficiently performed. Further, even when an adhesive is added only to the deepest portion of the convex portion and the deepest portion of the concave portion, a sufficient bonding strength between the carbon fiber-reinforced plastic and the metal material can be obtained, and efficient bonding treatment becomes possible.
The roller obtained by the engagement of the shaft performs the piercing treatment on the surface of the roller before the plating treatment. The perforation treatment is preferably carried out through a sanding process.
The sanding process for perforation treatment causes the sanding agent to collide with the surface of the carbon fiber-reinforced plastic roller at a high speed to generate compressive residual stress on the surface of the roller core. Mechanical properties such as durability are improved through such sanding process. The sanding agent used for such a sanding process may be glass # 175 to 325, glass # 400, or goldsmith # 600.
However, there is a problem that the surface roughness is too large or too small due to the pore processing, which is a factor that lowers the processing accuracy of the plating process.
The present inventors have found that when adjusting the surface roughness to be in the range of 12 to 13 S when measuring the sum Ry of the height Yp from the average line to the maximum height and the depth Yv of the maximum valley, .
That is, in the present invention, the type of the sanding agent, the spraying time, and the spraying strength were adjusted so that the roughness of the roller after the punching treatment, Ry, was adjusted to be in the range of 12 to 13S.
As a result, it is possible to obtain a roller having uniform surface roughness after plating the surface of the roller core.
If Ry is less than 12S, the surface roughness is too low to cause peeling after chrome plating, and if it exceeds 13S, the uniformity of the plating process becomes poor, so it is important to adjust to the above range.
In order to improve the surface roughness, a burnishing process may be additionally performed using a burnishing roller before the punching process.
The plated layer is formed by sequentially performing the electroless nickel plating treatment, the copper plating treatment, and the chromium plating treatment on the roller core material having been subjected to the piercing treatment.
In the present invention, the electroless nickel plating treatment can be performed according to a conventional electroless nickel plating treatment. When a chromium plating layer is formed on the surface of the nickel plating layer obtained by such a nickel plating treatment, surface hardness can be obtained, and physical properties such as that which can be used as a roller can be obtained.
However, in the present invention, a chromium plating layer is formed on the nickel plating layer without forming a chromium plating layer directly thereon, followed by forming a copper plating layer by copper plating.
The copper plating layer serves as a buffer layer of the nickel plating layer and the chromium plating layer. The chromium layer formed on the carbon layer or the nickel layer is easily peeled off. However, when the copper plating layer is formed and the chromium plating layer is formed thereon, the chromium layer is not easily peeled, and the durability of the roller is increased.
When the chromium plating layer is formed on the copper plating layer, the adhesion and the durability are greatly improved as compared with the chrome plating layer formed on the roller made of the steel pipe or the SUS pipe.
Further, when the chromium layer plated on the steel pipe or the SUS pipe is peeled off by an acid treatment during the regeneration of the roller, there arises a problem in that the process is complicated and the dimensional accuracy is deteriorated due to corrosion of the steel or SUS surface and chromium plating after polishing, The chromium layer formed on the plated layer is very advantageous in terms of maintaining the process efficiency and dimensional accuracy since it is possible to perform chromium plating treatment immediately without removing additional polishing process or the like even if the chromium layer is peeled off by acid treatment for regenerating the roller.
The copper plating layer may be formed by electroless plating or electrolytic plating, but it is preferable to form the plating layer by electrolytic plating. A plating layer having a plating thickness of 200 to 400 占 퐉 can be obtained by electrolytic plating.
If the thickness of the copper plating layer is less than 200 탆, the copper layer is too thin to improve the durability of the chromium plating layer. Therefore, the copper layer is hardly different in durability from the case where the copper plating layer is not formed. The desired dimensional accuracy can not be obtained after the plating process.
In the present invention, copper plating is performed by supplying a roller to a plating bath filled with a plating solution containing copper sulfate (CuSO 4 .5H 2 O), sulfuric acid, hydrochloric acid, a leveling agent, etc. and connecting a + 60 C < / RTI > for 30 seconds to 60 minutes. When the formation of the plating layer is completed on the surface of the roller, the outer diameter of the surface is machined.
The concentration of hydrochloric acid in copper plating is important, because chlorine generated by dissociation of hydrochloric acid is an intermediate conductor that plays a crucial role in the reduction reaction and plating process of copper ion and serves to increase the plating rate. That is, if the amount of chlorine ions is too large, the resistance of the surface becomes excessively large and the copper ions can not be properly eluted. When the amount is too small, Cu 0 is corroded and melts down.
As a result of many experiments, the present inventors have found that it is preferable that the content of hydrochloric acid in the copper plating is 5 to 10% by weight based on 100% by weight of sulfuric acid.
The roller formed with the copper plating layer is put into a plating tank to perform chromium plating.
The chromium plating method applied to the present invention is a method that does not contain fluoride and can be plated with a current efficiency as high as 25% or more and does not cause corrosion of a low current portion that is not plated. In addition, plating can be performed at a rate four times faster than that of ordinary chromium plating.
The chromium plating of the present invention uses a plating solution made of anhydrous chromic acid, sulfuric acid, and a supplements. It is preferable to use HIFE-25C, HIFF-KR, HIFF-PR or HIFF-FC (Atotech) as the supplements to be used for the plating solution, and it is more preferable to use HIFF-25C.
HIFE-25C has a higher hardness than ordinary silica baths, which compensates for the loose property of copper plating. That is, the hardness in the ordinary cygent bath is 700 to 900 HV, but when HIFE-25C is used, the hardness is increased to 900 to 1,100 HV, thus enabling smooth plating.
The above-mentioned supplements should be used in an amount of 1 to 15% by weight, preferably 5 to 10% by weight, based on 100% by weight of chromic anhydride. If it is less than the above range, plating will not occur faster than ordinary chromium plating and the current efficiency will not reach 25%. Even if it exceeds the above range, there is no change in the plating speed and current efficiency and the supplement is unnecessarily used. .
The chromium plating is carried out at 30 to 70 DEG C, preferably 50 to 70 DEG C for 1 to 10 hours, preferably 3 to 5 hours, by connecting the roller to the plating bath filled with the plating solution and connecting the + and - The plating temperature and time may vary depending on the thickness of the chromium plating layer, the surface roughness, and the like. According to the conditions of the present invention, when a chromium plating treatment is performed, a chromium plating layer having a thickness of 100 to 200 μm can be obtained, and properties such as strength, rigidity and hardness of the roller, have.
Before or after the chromium plating process, the chromium plating process may be carried out before and after the chromium plating process so as to adjust the roundness, straightness, concentricity, and dimensions.
The roller on which the chromium plating layer is formed can obtain final surface roughness through super precision finishing. That is, it is possible to improve the surface roughness while minimizing the amount of processing of the chromium plating layer through the ultra-precision finishing using the abrasive film as a workpiece.
According to the present invention, it is possible to manufacture a roller having a surface roughness (Ry) ranging from 0.2 to 0.4 S through the super precision finishing.
Hereinafter, the present invention will be described in detail with reference to examples. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
A roller core member made of carbon fiber-reinforced plastic having an outer diameter of 100 mm and a length of 600 mm was subjected to outer diameter machining and inner diameter machining at shaft punching portions to form three-step recesses at both ends.
A shaft having three-step convex portions was inserted into both end portions of the roller core. At this time, an adhesive was applied to the outermost periphery of the shaft and the uppermost part was inserted into the center of the roller core by interference fit, thereby manufacturing the roller.
The adhesive was prepared by mixing 25 parts by weight of an epoxy resin, 3 parts by weight of dicyandiamide, 20 parts by weight of polyetherdiamine, 10 parts by weight of MX153, 30 parts by weight of a filler and 1 part by weight of a catalyst as epoxy adhesives.
The prepared roller surface was subjected to a piercing treatment by spraying a sanding agent for 20 minutes using a sandblasting machine using a sand paper # 600 as a sanding agent. The roughness (Ry) after the piercing treatment was 12.15S.
The perforated roller was subjected to electroless nickel plating treatment to form a nickel plating layer having a thickness of 200 mu m.
The conditions for the electroless nickel plating treatment were as follows: 30 g / L of nickel sulfate, 3.5 g / L of dimethylamine borane and 34 g / L of sodium malonate as a plating solution and maintaining the plating bath temperature at 20 to 30 ° C for 5 to 6 hours Plating treatment.
The resulting nickel plated layer roller was placed in a plating bath filled with a plating solution (hydrochloric acid content 7 wt% with respect to sulfuric acid) containing copper sulfate, sulfuric acid, hydrochloric acid and leveling agent and plated at 60 캜 for 5 minutes to form a copper plating layer . The roller with the copper plating layer adjusted the surface roughness by machining the outer surface.
Finally, the roller having the copper plating layer was charged into a plating bath filled with a plating solution consisting of 250 g / L of chromic anhydride, 2.7 g / L of sulfuric acid and 20 ml / L of HIFE-25C (Atotech Co.) A chromium plated layer having a thickness of 150 mu m was formed.
The roller having the obtained chromium-plated layer was ground and super-precisely polished to produce a roller having a surface roughness Ry of 0.2S.
[Comparative Example 1]
A roller was produced in the same manner as in Example 1 except that a chromium plating layer was formed on the nickel plating layer without forming a copper plating layer.
[Comparative Example 2]
A roller was produced in the same manner as in Example 1 except that the glass was subjected to a piercing treatment using glass # 175 to 325 as a sanding agent and the roughness (Ry) after piercing treatment was 13.27.
[Comparative Example 3]
A roller was produced in the same manner as in Example 1, except that the glass was subjected to a piercing treatment using glass # 175 to 325 as a sanding agent and the roughness (Ry) after piercing treatment was 11.5.
[Comparative Example 4]
A roller was produced in the same manner as in Example 1 except that the thickness of the copper plating layer was changed to 100 mu m.
[Comparative Example 5]
A roller was produced in the same manner as in Example 1 except that the thickness of the copper plating layer was 500 mu m.
[Comparative Example 6]
A roller was prepared in the same manner as in Example 1, except that the content of hydrochloric acid with respect to sulfuric acid was 15% by weight during the formation of the copper plating layer. In this case, plating was insufficient at 60 占 폚 for 5 minutes by plating, and the plating treatment was performed for 20 minutes to make the thickness of the copper plating layer approximately 300 占 퐉.
In order to test the characteristics of the roller manufactured in Example 1 and Comparative Examples 1 to 6, a sanding agent was sprayed on a roller having a chromium plating layer for 30 minutes by a sandblaster, and then the surface state of the roller was visually observed. It was examined whether or not peeling or lifting of the plating layer occurred.
As a result of the tests, in Comparative Examples 1 to 6, peeling or peeling of the chromium plating layer occurred, but in Example 1, no peeling or peeling of the chromium plating layer was observed at all.
That is, as shown in the photograph of the characteristic test procedure of Comparative Example 1 in FIG. 3, it was confirmed that the chrome plating layer was severely peeled off during the sandblasting process with the sandblaster.
In contrast, as shown in FIG. 4, the roller of the present invention was able to confirm the surface state of the chrome plated layer formed on the right side of the roller without peeling or peeling off after the sanding spray test.
Therefore, it has been confirmed that the carbon fiber-reinforced plastic roller manufactured by the manufacturing method of the present invention exhibits a lightweight, high strength, high rigidity, high heat resistance, and high hardness roller characteristics than metal rollers.
10: convex part of the roller 20: concave part of the shaft
10 ': concave portion 20' of the roller: convex portion of the shaft
30: outer periphery of roller 40: outer periphery of shaft
Claims (5)
Axially machining the shaft at both ends of the roller core to produce a roller;
Piercing the surface of the roller;
The surface of the roller is subjected to electroless nickel plating to produce a roller having a nickel plated layer formed thereon;
The surface of the nickel-plated roller is subjected to copper plating treatment by electrolytic plating using a plating solution containing 5 to 10% by weight of hydrochloric acid when the content of sulfuric acid and sulfuric acid is 100% by weight to produce a roller having a copper plating layer step;
A step of chrome plating the surface of the copper-plated roller to produce a roller having a chromium plating layer;
Precisely finishing the surface of the roller on which the chromium-plated layer is formed;
The method of claim 1,
Wherein the step of manufacturing the roller is performed by combining a convex portion of the roller side surface formed in a multi-stage and a shaft having a multi-step concave portion corresponding to the convex portion, and the center of the convex portion of the roller side surface is pressed against the concave portion of the shaft And the outer periphery of the convex portion of the roller side and the outer periphery of the concave portion of the shaft are bonded.
Wherein the step of manufacturing the roller is performed by combining a concave portion formed on the side surface of the roller formed in a multi-stage and a shaft formed with a multi-step convex portion corresponding to the convex portion, and the center of the convex portion of the shaft is forcedly fitted into the concave portion of the roller And the outer periphery of the convex portion of the shaft and the outer periphery of the concave portion of the roller side are bonded.
Wherein the roughness Ry of the roller subjected to the piercing step is 12 to 13S.
Wherein the grinding process is carried out before and / or after the chromium plating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020150105646A KR101566349B1 (en) | 2015-07-27 | 2015-07-27 | Manufacturing Method of Carbon Fiber-Reinforced Plastics Roller |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150105646A KR101566349B1 (en) | 2015-07-27 | 2015-07-27 | Manufacturing Method of Carbon Fiber-Reinforced Plastics Roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102137771B1 (en) * | 2020-04-08 | 2020-07-27 | (주)한뫼테크 | Plastic conveyor roller component material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006090525A (en) * | 2004-09-27 | 2006-04-06 | Nippon Oil Corp | Fiber-reinforced resin roller and its manufacturing method |
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2015
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006090525A (en) * | 2004-09-27 | 2006-04-06 | Nippon Oil Corp | Fiber-reinforced resin roller and its manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102137771B1 (en) * | 2020-04-08 | 2020-07-27 | (주)한뫼테크 | Plastic conveyor roller component material |
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