阅读说明：本技术 一种高花纹精度、耐高温压花辊结构及制备方法 (High-pattern-precision high-temperature-resistant embossing roller structure and preparation method thereof ) 是由 初文静 林俊良 林金汉 林金锡 林垦 于 2020-03-31 设计创作，主要内容包括：本发明涉及一种高花纹精度、耐高温压花辊结构及制备方法,包括辊本体,所述辊本体的表面为光滑表面,所述辊本体的表面设有保护层,所述保护层上设有花纹；所述保护层的材料为碳化钛、碳化硼、氮化硅中的一种或几种；所述压花辊用于玻璃；所述保护层的厚度至少为50μm；所述花纹的深度小于等于20μm。以高速火焰喷涂法在辊本体外制备保护层,在所述保护层外以喷砂法、激光雕刻法或刀刻法等制备花纹。本发明可延长辊本体的使用寿命；保护层可使辊本体不被氧化。(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.)

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.

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.