TWI722889B - Manufacturing method of bake resistant roller - Google Patents

Abstract

A manufacturing method of a bake resistant roller is provided. First, the manufacturing method of the bake resistant roller provides a steel roller, and then a nickel metal layer is formed on an outer surface of the steel roller. The nickel metal layer includes a smooth surface with a centerline average roughness (Ra) of less than 0.5 microns. Second, the manufacturing method of the bake resistant roller provides a photoresist layer formed on the smooth surface of the nickel metal layer, and then provides a silver layer coated on the outer surface of the photoresist layer. Finally, a nickel plating layer is formed on the outer surface of the silver layer by electroplating.

Description

Method for manufacturing baking-resistant roller

The invention relates to a manufacturing method of a roller, in particular to a manufacturing method of a baking-resistant roller.

The existing roller manufacturing method usually first deposits (or sprays) epoxy resin on the roller, then deposits metal materials and forms a photoresist on the surface of the roller, polishing or depositing other materials, etc., and then manufactures the surface with Wheels with specific patterns. However, due to the low melting point of epoxy resin, the existing manufacturing method of the roller often needs to be cured for a long time at a temperature lower than its melting point, resulting in a substantial increase in the time and cost required by the existing manufacturing method of the roller.

Therefore, how to overcome the above-mentioned shortcomings by improving the manufacturing method of the rollers has become one of the important issues to be solved by this business.

The technical problem to be solved by the present invention is to provide a method for manufacturing a baking-resistant roller in view of the deficiencies of the prior art, which includes: providing a steel wheel; forming a nickel metal layer on the outer surface of the steel wheel; The nickel metal layer includes a smooth surface with a centerline average roughness (Ra) not greater than 0.5 microns; a photoresist layer is formed on the smooth surface of the nickel metal layer; and the outer surface of the photoresist layer is coated A silver layer is arranged; and a nickel plating layer is electroplated on the outer surface of the silver layer.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a method for manufacturing a baking-resistant roller, which includes: providing a steel wheel; forming a copper metal layer on the outer surface of the steel wheel; wherein The copper metal layer includes a smooth surface with a centerline average roughness (Ra) not greater than 0.5 microns; a photoresist layer is formed on the smooth surface of the copper metal layer; A silver layer is coated on the outer surface; and a nickel plating layer is electroplated on the outer surface of the silver layer.

One of the beneficial effects of the present invention is that the method for manufacturing the baking-resistant roller provided by the present invention can be achieved by "forming a centerline average roughness (Ra) not greater than 0.5 microns on the outer surface of the steel wheel). The technical solution of "the nickel metal layer (or the copper metal layer) of the smooth surface" is to reduce the process time and energy consumption of the manufacturing method of the bake-resistant roller.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings about the present invention. However, the provided drawings are only for reference and description, and are not used to limit the present invention.

The following is a specific embodiment to illustrate the implementation of the “bake-resistant roller manufacturing method” disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual size, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another, or one signal from another signal. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

Please refer to Figures 1 to 4, which are embodiments of the present invention. It should be noted that the relevant quantities and appearances mentioned in the corresponding drawings of this embodiment are only used to specifically illustrate the implementation of the present invention. The method is to facilitate understanding of the content of the present invention, rather than to limit the protection scope of the present invention.

Referring to FIG. 1, an embodiment of the present invention discloses a method for manufacturing a baking-resistant roller and a baking-resistant roller 100. For ease of description, the manufacturing method of the bake-resistant roller will be described below first, and then the structure of the bake-resistant roller 100 will be described later.

The manufacturing method of the baking-resistant roller includes at least in sequence: a first step S101: providing a steel wheel 1, a second step S102: forming a nickel metal layer 2 on the outer surface of the steel wheel 1 Three steps S103: forming a photoresist layer 3 on the smooth surface 21 of the nickel metal layer 2, a fourth step S104: coating a silver layer 4 on the outer surface of the photoresist layer 3, and a The fifth step S105: electroplating a nickel plating layer 5 on the outer surface of the silver layer 4.

It should be noted that, as shown in FIGS. 3 and 4, the steel wheel 1 in the first step S101 is a long roller and its material is stainless steel. In other embodiments not shown in the present invention, the steel wheel 1 has a supporting rod passing through its central axis. Wherein, the support rod and the steel wheel 1 are integrally formed, but the present invention is not limited to this. For example, the support rod and the steel wheel 1 may also be two components that can be separated and combined with each other.

It should be noted that the nickel metal layer 2 in the second step S102 includes a smooth surface 21 with a centerline average roughness (Ra) not greater than 0.5 microns (㎛) in this embodiment, but the present invention It is not limited to this. For example, after the nickel metal layer 2 is formed, the nickel metal layer 2 can be processed by a diamond knife to form the smooth surface 21 with an average centerline roughness of not more than 0.3 micrometers. In other words, the smooth surface 21 of the nickel metal layer 2 is not formed by a polishing process. Wherein, the diamond knife may be a single crystal diamond tool (such as a natural diamond blade, a natural diamond turning tool, a natural diamond milling cutter, etc.) or a polycrystalline diamond tool.

Specifically, the nickel metal layer 2 is subjected to metal mirror cutting processing by the diamond knife to form the smooth surface 21 with an average centerline roughness of not more than 0.3 micrometers. It should be noted that in the existing roller manufacturing process, due to the material properties of nickel metal and copper metal, traditional polishing techniques (such as chemical polishing, fluid polishing, and ultrasonic polishing) are difficult to directly apply to the nickel of the roller. Metal or copper metal layer. However, the diamond knife has a very sharp cutting edge without uneven serrations (that is, a smooth profile) and high hardness characteristics, so it is suitable for metal mirror cutting processing technology. Compared with the traditional abrasive mirror surface processing technology, the metal mirror surface cutting processing technology can obtain higher shape accuracy and its light reflectivity or laser light resistance to heat damage is relatively high. In addition, the processing cost of metal mirror cutting technology is relatively low.

It should be noted that the centerline average roughness (Ra) conforms to the following formula: Ra=|f(x)|dx/L. In more detail, as shown in Figure 2, Figure 2 is a schematic diagram of the centerline average roughness curve. The roughness curve in Figure 2 defines the centerline as the X axis, and the direction perpendicular to the centerline is the Y axis, so The roughness curve defines a measurement length L along the X-axis direction. Wherein, the roughness curve can be represented by f(x), and the average roughness of the center line can be obtained by substituting f(x) into the above formula.

It should be noted that the photoresist layer 3 in the third step S103 is a positive photoresist in this embodiment, but the present invention is not limited to this. For example, the photoresist layer 3 may also be a negative photoresist. Wherein, after the photoresist layer 3 is formed, the photoresist layer 3 is cured by a baking operation. In more detail, the baking operation can remove the solvent remaining in the photoresist layer 3 and enhance the adhesion of the photoresist layer 3 to the smooth surface 21.

It should be noted that the silver layer 4 in the fourth step S104 is used to protect the nickel metal layer 2 to prevent oxidation of the nickel metal layer 2 after long-term use. In addition, the silver layer 4 is used for electroplating in the subsequent fifth step S105 and forming the nickel plating layer 5 to further prevent the nickel metal layer 2 and the photoresist layer 3 from being damaged or oxidized by external force.

It should be noted that in other embodiments not shown in the present invention, the nickel metal layer 2 can be replaced with a copper metal layer 2'.

As shown in Figures 3 and 4, an embodiment of the present invention discloses a baking-resistant roller 100, which includes the steel wheel 1, the nickel metal layer 2, the photoresist layer 3, and the photoresist layer in order from the inside to the outside. The silver layer 4 and the nickel plating layer 5. The nickel metal layer 2 is formed on the outer surface of the steel wheel 1. Wherein, the nickel metal layer 2 includes the smooth surface 21 whose centerline average roughness (Ra) is not greater than 0.5 microns. The photoresist layer 3 is formed on the smooth surface 21 of the nickel metal layer 2. The silver layer 4 is coated on the outer surface of the photoresist layer 3. The nickel plating layer 5 is electroplated and formed on the outer surface of the silver layer 4.

It should be noted that the steel wheel 1 is further defined as a stainless steel wheel. The bake-resistant roller 100 does not include any epoxy resin layer. In addition, in other embodiments not shown in the present invention, the smooth surface 21 of the nickel metal layer 2 is further defined as a non-polished surface, and the center of the smooth surface 21 of the nickel metal layer 2 The line average roughness can be no more than 0.3 microns, and the nickel metal layer 2 can be replaced with the copper metal layer 2'.

[Beneficial effects of the embodiment]

One of the beneficial effects of the present invention is that the method for manufacturing the baking-resistant roller provided by the present invention can be achieved by "forming a centerline average roughness (Ra) not greater than 0.5 microns on the outer surface of the steel wheel). "The nickel metal layer (or the copper metal layer) of the smooth surface" technical solution does not require the formation of a conventional epoxy resin layer, so as to reduce the process time and requirements of the manufacturing method of the bake-resistant roller Energy wasted.

Furthermore, the method for manufacturing a baking-resistant roller provided by the present invention can be achieved by the technical solution of "processing the nickel metal layer and the copper metal layer by the diamond knife processing to form the smooth surface" , Effectively improve the shape accuracy of the nickel metal layer and the copper metal layer of the roller, and greatly reduce the manufacturing cost.

The content disclosed above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

100: Baking resistant roller 1: steel wheel 2. 2’: Nickel metal layer 21: Smooth surface 3: photoresist layer 4: Silver layer 5: Nickel plating S101: first step S102: second step S103: third step S104: Fourth step S105: fifth step

Fig. 1 is a flowchart of a method for manufacturing a baking-resistant roller according to an embodiment of the present invention.

Figure 2 is a schematic diagram of the average roughness of the center line.

Fig. 3 is a three-dimensional schematic diagram of a baking-resistant roller according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the IV-IV section of Fig. 3.

S101: first step

S102: second step

S103: third step

S104: Fourth step

S105: fifth step

Claims (10)

A method for manufacturing a baking-resistant roller, which includes: Provide a steel wheel; A nickel metal layer is formed on the outer surface of the steel wheel; wherein the nickel metal layer includes a smooth surface with a centerline average roughness (Ra) not greater than 0.5 microns; A photoresist layer is formed on the smooth surface of the nickel metal layer; A silver layer is coated on the outer surface of the photoresist layer; and A nickel plating layer is electroplated on the outer surface of the silver layer. The method for manufacturing a baking-resistant roller according to claim 1, wherein, after the photoresist layer is formed, the photoresist layer is cured by a baking operation. The method for manufacturing a baking-resistant roller according to claim 1, wherein the material of the steel wheel is stainless steel. The method for manufacturing a baking-resistant roller according to claim 1, wherein, after the nickel metal layer is formed, the nickel metal layer is processed by a diamond knife to form the centerline average roughness of not more than 0.3 micrometers. Smooth surface. The method for manufacturing a baking-resistant roller according to claim 1, wherein the smooth surface of the nickel metal layer is not formed by a polishing process. A method for manufacturing a baking-resistant roller, which includes: Provide a steel wheel; A copper metal layer is formed on the outer surface of the steel wheel; wherein the copper metal layer includes a smooth surface with a centerline average roughness (Ra) not greater than 0.5 microns; A photoresist layer is formed on the smooth surface of the copper metal layer; A silver layer is coated on the outer surface of the photoresist layer; and A nickel plating layer is electroplated on the outer surface of the silver layer. The method for manufacturing a baking-resistant roller according to claim 6, wherein after the photoresist layer is formed, the photoresist layer is cured by a baking operation. The method for manufacturing a baking-resistant roller according to claim 6, wherein the material of the steel wheel is stainless steel. The method for manufacturing a baking-resistant roller according to claim 6, wherein, after the copper metal layer is formed, the copper metal layer is processed by a diamond knife to form the smooth center line with an average roughness of not more than 0.3 micrometers surface. The method for manufacturing a baking-resistant roller according to claim 6, wherein the smooth surface of the copper metal layer is not formed by a polishing process.

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