CN111410405A - High-pattern-precision high-temperature-resistant embossing roller structure and preparation method thereof - Google Patents
High-pattern-precision high-temperature-resistant embossing roller structure and preparation method thereof Download PDFInfo
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- CN111410405A CN111410405A CN202010244660.XA CN202010244660A CN111410405A CN 111410405 A CN111410405 A CN 111410405A CN 202010244660 A CN202010244660 A CN 202010244660A CN 111410405 A CN111410405 A CN 111410405A
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- protective layer
- roller
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- roller body
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
- C03B13/16—Construction of the glass rollers
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
- C03B13/08—Rolling patterned sheets, e.g. sheets having a surface pattern
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a high-pattern-precision high-temperature-resistant embossing roller structure and a preparation method thereof, wherein the embossing roller structure comprises a roller body, the surface of the roller body is a smooth surface, the surface of the roller body is provided with a protective layer, and patterns are arranged on the protective layer; the protective layer is made of one or more of titanium carbide, boron carbide and silicon nitride; the embossing roller is used for glass; the thickness of the protective layer is at least 50 μm; the depth of the patterns is less than or equal to 20 mu m. Preparing a protective layer outside the roller body by a high-speed flame spraying method, and preparing patterns outside the protective layer by a sand blasting method, a laser engraving method or a knife engraving method and the like. The invention can prolong the service life of the roller body; the protective layer can protect the roller body from oxidation.
Description
Technical Field
The invention relates to the technical field of embossing rollers, in particular to an embossing roller structure with high pattern precision and high temperature resistance and a preparation method thereof.
Background
The rolled glass is a glass plate formed by cooling and rolling molten glass by an upper press roll and a lower press roll, and comprises three main varieties of rough-surface rolled glass, embossed glass and wired glass. The patterned glass is produced by embossing a patterned lower roll against glass and rolling the molten glass as it passes through the rolls to form the patterned glass. The product is used for lighting doors and windows, decoration, household articles and the like of various buildings and structures. Such as offices, conference rooms, bathrooms, toilets, kitchens, toilets and public spaces compartments.
The rolling process is actually a dynamic heat and cold exchange process, when molten glass liquid is rolled and formed by the rolling rolls, the glass liquid transfers a large amount of heat to the rolling rolls in a short time, the physical form of the glass liquid is rapidly changed from a quasi-liquid state to a solid state, then the rolling rolls perform the next working cycle in a circumferential rolling mode, and in the repeated working, the rolling rolls are always in a severe alternating thermal stress production state of rapid cooling and rapid heating, and the surface temperature of the rolling rolls is periodically changed between 100 and 300 ℃. However, in the production stamping with long time, periodicity and large load, the fatigue strength born by the calendering roller is very high, and the roller body is also easy to be oxidized and deformed.
The traditional embossing roller is prepared by engraving embossing patterns on the roller and then plating a chromium protective layer, the embossing patterns are worn after the general embossing roller is used for a period of time, the embossing patterns need to be polished off and then engraved again in the repairing process, and the roller diameter is smaller and smaller due to repeated polishing, so that the service life of the roller is shortened. In addition, the electroplating or chemical plating process of the chromium plating protective layer has serious pollution and strict environmental protection requirements, and the pattern structure can be damaged to a certain extent by plating chromium on the patterns.
Disclosure of Invention
In order to solve the technical problems of short service life of the embossing roller, serious pollution of a chromium plating protective layer and pattern damage, the embossing roller structure with high pattern precision and high temperature resistance and the preparation method are provided. The embossing roller has high pattern precision and high temperature resistance, and the service life of the roller can be greatly prolonged.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a high-pattern-precision high-temperature-resistant embossing roller structure comprises a roller body, wherein the surface of the roller body is a smooth surface, a protective layer is arranged on the surface of the roller body, and patterns are arranged on the protective layer; the protective layer is made of one or more of titanium carbide, boron carbide and silicon nitride; the embossing roller structure is used for glass embossing.
Further, the protective layer has a thickness of at least 50 μm.
Further, the depth of the pattern is less than or equal to 20 μm. The pattern depth cannot be set too deep, and if the pattern depth is deep, the protective layer outside the metal roller is too thin or the protective layer at the deep pattern position is too thin, the protective effect on the metal roller cannot be achieved.
The invention provides a preparation method of the embossing roller structure with high pattern precision and high temperature resistance, which comprises the following steps: preparing a protective layer on the surface of the roller body, and preparing patterns on the protective layer.
Further, the protective layer is formed on the surface of the roller body by a high-speed flame spraying method.
Furthermore, the patterns are formed on the protective layer by a sand blasting method, a laser engraving method or a knife engraving method.
The materials of the protective layer have stable chemical properties, high temperature resistance, good oxidation resistance at high temperature, good wear resistance and high hardness; the materials are sprayed and attached to the roller body by high-speed flame, and the materials are easy to form solid solution with the metal roller in the spraying process, so that the performances of the metal roller, such as wear resistance, oxidation resistance, corrosion resistance and the like, are improved; tungsten carbide and chromium carbide materials can embrittle the obtained protective layer material and make the processing difficult. Therefore, the protective layer is made of titanium carbide or boron carbide or silicon nitride.
The protective layer prepared by the high-speed flame spraying method has high bonding strength with the metal roller, has extremely low porosity, and can replace a chromium-plated hard chromium layer; the protective layer prepared by the high-speed flame spraying method has higher hardness and better wear resistance; because the materials selected by the protective layer have the advantages of stable chemical property, high temperature resistance, good oxidation resistance at high temperature, good wear resistance and high hardness, the materials are sprayed on the surface of the metal roller by a high-speed flame spraying method, and the materials are easy to form solid solution with the metal roller in the high-speed flame spraying process, so that the performances of the metal roller such as wear resistance, oxidation resistance, high temperature resistance and the like are improved.
The beneficial technical effects are as follows: the embossing roller structure of the invention is that a protective layer prepared by a high-speed flame spraying method is arranged on the smooth surface of a roller body, and patterns are arranged on the protective layer. When normal damage occurs in the use process, the patterns on the protective layer are only required to be removed when the roller is repaired again, the patterns are prepared outside the original protective layer again, only the thickness of the protective layer is reduced in the repeated polishing and grinding process, at the moment, the patterns are prepared on the protective layer after the protective layer is prepared again to meet certain thickness requirements, the materials of the metal roller are not required to be consumed, and the service life of the roller body can be prolonged; the protective layer can protect the roller body from oxidation. The protective layer prepared by high-speed flame spraying can improve the performances of wear resistance, oxidation resistance, high temperature resistance and the like of the metal roller; replaces a hard chromium layer for chromium plating, and solves the problems of serious pollution and pattern damage of a chromium plating protective layer.
Drawings
FIG. 1 is a schematic cross-sectional view of an embossing roll of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a high pattern precision, high temperature resistant embossing roller according to an embodiment of the present invention.
Wherein, 1-roller body, 2-protective layer and 3-pattern.
FIG. 3 is a surface micro-topography before and after chrome plating of the embossing roller of the construction of comparative example 1, wherein (a) is before chrome plating and (b) is after chrome plating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is further described below with reference to the figures and specific examples, without limiting the scope of the invention.
The embossing roller of the following embodiments 1 to 3 has a schematic structural view as shown in FIG. 2, and a schematic sectional view as shown in FIG. 1.
Example 1
A high-pattern-precision high-temperature-resistant embossing roller structure comprises a roller body 1, wherein the surface of the roller body 1 is a smooth surface, a protective layer 2 is arranged on the surface of the roller body 1, and patterns 3 are arranged on the protective layer 2; the protective layer 2 is made of titanium carbide;
the thickness of the protective layer 2 in this embodiment is 50 μm;
in this embodiment, the depth of the pattern 3 is 2.0 μm.
A method for preparing a high-pattern-precision high-temperature-resistant embossing roller structure comprises the following steps:
the roll body 1 (steel No. 45) was polished, and then a boron carbide protective layer 2 having a thickness of 50 μm was prepared on the smooth surface of the roll body 1 by a high-speed flame spraying method, and a pattern 3 having a depth of 2.0 μm was prepared on the protective layer 2 by a sand blast method.
The embossing roller of the embodiment is tested for high temperature resistance, and the embossing roller of the embodiment has no oxidation at 550 ℃, and has better high temperature resistance.
Example 2
A high-pattern-precision high-temperature-resistant embossing roller structure comprises a roller body 1, wherein the surface of the roller body 1 is a smooth surface, a protective layer 2 is arranged on the surface of the roller body 1, and patterns 3 are arranged on the protective layer 2; the protective layer 2 is made of boron carbide;
the thickness of the protective layer 2 in this embodiment is 50 μm;
in this embodiment, the depth of the pattern 3 is 2.0 μm.
A method for preparing a high-pattern-precision high-temperature-resistant embossing roller structure comprises the following steps:
the roll body 1 (steel No. 45) was polished, and then a titanium carbide protective layer 2 having a thickness of 50 μm was prepared on the smooth surface of the roll body 1 by a high-speed flame spraying method, and a pattern 3 having a depth Ra of 2.0 μm was prepared on the protective layer 2 by laser engraving.
The embossing roller of the embodiment is tested for high temperature resistance, and the embossing roller of the embodiment has no oxidation at 550 ℃, and has better high temperature resistance.
Example 3
A high-pattern-precision high-temperature-resistant embossing roller structure comprises a roller body 1, wherein the surface of the roller body 1 is a smooth surface, a protective layer 2 is arranged on the surface of the roller body 1, and patterns 3 are arranged on the protective layer 2; the protective layer 2 is made of silicon nitride;
the thickness of the protective layer 2 in this embodiment is 50 μm;
the depth of the pattern 3 in this embodiment is 20 μm.
A method for preparing a high-pattern-precision high-temperature-resistant embossing roller structure comprises the following steps:
the roll body 1 (steel No. 45) was polished, and then a silicon nitride protective layer 2 having a thickness of 50 μm was prepared on the smooth surface of the roll body 1 by a high-speed flame spraying method, and patterns 3 having a depth of 20 μm were prepared on the protective layer 2 by a sand blast method.
The embossing roller of the embodiment is tested for high temperature resistance, and the embossing roller of the embodiment has no oxidation at 550 ℃, and has better high temperature resistance.
Comparative example 1
The method for producing the emboss roller of this comparative example: polishing a No. 45 steel roller, preparing patterns with the same depth as that in example 1 on the surface of the roller body through a sand blasting process, and then plating chromium on the surface of the roller body with the patterns through an electroplating process, wherein the thickness of a chromium layer is 50 microns.
The embossing roller of the comparative example is tested for high temperature resistance, and is seriously oxidized at 500 ℃. It can be seen that the embossing roller of the comparative example structure has poorer high temperature resistance than the embossing roller of the example 1 structure.
The surface micro-topography test before and after the chrome plating was performed on the emboss roller of this comparative example, and the results are shown in fig. 3, from which it can be seen that (a) is before the chrome plating and (b) is after the chrome plating, the surface of the emboss roller before the chrome plating is rougher than that after the chrome plating; and the roughness Ra of the patterns before and after chromium plating is tested, the roughness Ra of the patterns before chromium plating is 2.235 mu m, the roughness Ra of the patterns after chromium plating is 1.828 mu m, and the roughness Ra of the patterns after chromium plating is reduced, which shows that the traditional method for electroplating the protective material on the surface of the roller with the patterns can change the pattern structure and reduce the pattern precision of the roller.
The embossing roller with the structure of the invention has higher pattern precision than the embossing roller with the structure of the comparative example.
Comparative example 2
The method for producing the emboss roller of this comparative example: polishing a No. 45 steel roller, preparing a titanium carbide protective layer with the thickness of 50 mu m on the smooth surface of the roller body by a high-speed flame spraying method, and preparing patterns with the depth of 25 mu m on the protective layer by a sand blasting method.
The embossing roller of this comparative example was tested for high temperature resistance and did not oxidize at 550 ℃.
Comparative example 3
The method for producing the emboss roller of this comparative example: polishing a No. 45 steel roller, preparing a titanium carbide protective layer on the smooth surface of the roller body by a high-speed flame spraying method, wherein the thickness of the titanium carbide protective layer is 40 mu m, and preparing patterns with the depth of 2.0 mu m on the protective layer by a sand blasting method.
The embossing roller of this comparative example was tested for high temperature resistance and did not oxidize at 550 ℃.
The life test of the emboss roller was carried out for examples 1 to 3 and comparative examples 1 to 3, and the data are shown in Table 1.
TABLE 1 service lives of the embossing rolls of examples 1 to 3 and comparative examples 1 to 3
As can be seen from table 1, the embossing roll of the present invention structure has a long service life. Although the embossing roller of the structure of the comparative example 1 also has a high service life, the embossing roller of the structure of the comparative example 1 gradually reduces the roller diameter of the metal roller body in the process of repeated reworking and polishing, so that the metal roller is finally scrapped. When the embossing roller with the structure is normally damaged in the use process, the patterns on the protective layer are only required to be removed when the embossing roller is repaired again, the patterns are prepared outside the original protective layer again, the thickness of the protective layer is only reduced in the repeated polishing process, the patterns are prepared on the protective layer after the protective layer is prepared again to meet certain thickness requirements, the materials of the metal roller are not required to be consumed, and the service life of the metal roller body can be prolonged. The protective layer can protect the roller body from oxidation. The protective layer prepared by high-speed flame spraying can improve the performances of wear resistance, oxidation resistance, high temperature resistance and the like of the metal roller; replaces a hard chromium layer for chromium plating, and solves the problems of serious pollution and pattern damage of a chromium plating protective layer.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The high-pattern-precision high-temperature-resistant embossing roller structure is characterized by comprising a roller body (1), wherein the surface of the roller body (1) is a smooth surface, a protective layer (2) is arranged on the surface of the roller body (1), and patterns (3) are arranged on the protective layer (2); the protective layer (3) is made of one or more of titanium carbide, boron carbide and silicon nitride; the embossing roller structure is used for glass embossing.
2. A high pattern precision, high temperature resistant embossing roller structure as claimed in claim 1, characterized in that said protective layer (2) has a thickness of at least 50 μm.
3. A high pattern precision, high temperature resistant embossing roller structure as claimed in claim 2, characterized in that the depth of said pattern (3) is less than or equal to 20 μm.
4. A method for manufacturing a high pattern precision, high temperature resistant embossing roller structure according to any one of claims 1 to 3, characterized by comprising the steps of: preparing a protective layer (2) on the surface of the roller body (1), and preparing patterns (3) on the protective layer (2).
5. A method of manufacturing as claimed in claim 4, characterized in that the protective layer (2) is applied to the surface of the roll body (1) by means of high-speed flame spraying.
6. A method as claimed in claim 4, characterized in that said motif (3) is applied to said protective layer (2) by means of sandblasting or laser engraving or knife engraving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244660.XA CN111410405B (en) | 2020-03-31 | 2020-03-31 | High-pattern-precision high-temperature-resistant embossing roller structure and preparation method thereof |
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| CN202010244660.XA CN111410405B (en) | 2020-03-31 | 2020-03-31 | High-pattern-precision high-temperature-resistant embossing roller structure and preparation method thereof |
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| CN111410405B CN111410405B (en) | 2023-03-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643297A (en) * | 2020-12-24 | 2021-04-13 | 鹤山市精工制版有限公司 | Production process of embossing roller for LED light guide plate |
| CN112846519A (en) * | 2020-12-24 | 2021-05-28 | 鹤山市精工制版有限公司 | Production process of laser direct-engraving release paper embossing roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112643297A (en) * | 2020-12-24 | 2021-04-13 | 鹤山市精工制版有限公司 | Production process of embossing roller for LED light guide plate |
| CN112846519A (en) * | 2020-12-24 | 2021-05-28 | 鹤山市精工制版有限公司 | Production process of laser direct-engraving release paper embossing roller |
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| CN111410405B (en) | 2023-03-24 |
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