Preparation method of decorative wall brick and decorative wall brick

Abstract

The invention provides a preparation method of a decorative wall brick and the decorative wall brick. The preparation method comprises the following steps: providing a wall brick; according to the shape requirements of decorative patterns, laying a shielding layer on the surface of the wall brick, wherein the shape of the area, not shielded by the shielding layer, of the surface of the wall brick is the required pattern shape; performing powder deposition on the area, which is not shielded by the shielding layer, of the surface of the wall brick by utilizing thermal spraying or cold spraying to prepare a decorative layer, and removing the shielding layer to obtain the decorative wall brick. According to the method, the presentation effect of various decorative patterns can be achieved by selecting corresponding raw material types and contents and spraying process parameters according to decorative requirements, the flexibility is high, and the method is not limited by the flatness of the surface of the wall brick; the preparation method of the decorative wall brick is easy to operate, high in production efficiency, suitable for production of various batches of products, low in equipment input cost, raw material cost and equipment operation cost and good in economic benefit.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing decorative wall tiles and the decorative wall tiles. Background technique [0002] In recent years, as people have higher and higher requirements for the aesthetics of home furnishing, wall bricks, as a necessary part of various buildings, have become the focus of attention in the construction industry. At present, most of the decorative wall tiles are surface decorated by uv printing technology and screen printing, but these two technologies have certain problems. [0003] The uv printing technology has the following problems: a) high cost: the equipment price is high, and the cost of ink is double that of ordinary water-based ink; b) the failure rate is high: it is mainly reflected in civilian or low-end series, especially Cheap equipment, high maintenance frequency; c) Slow printing speed, compared with screen printing, this technology is slo...

AI Technical Summary

Problems solved by technology

[0003] The uv printing technology has the following problems: a) high cost: the equipment price is high, and the cost of ink is double that of ordinary water-based ink; b) the failure rate is high: it is mainly reflected in civilian or low-end series, especially Cheap equipment, high maintenance frequency; c) Slow printing speed, compared with screen printing, this technology is slow and not suitable for mass production

[0004] Screen printing technology has the following technical problems: a) It is difficult to print multiple colors, and only one color can be printed at a time. For multi-color printing, complex and cumbersome color registration must be carried out. The technical requirements are relatively high, and color registration is prone to inaccurate phenomena. Therefore, the scrap rate of the product is increased, and the cost is also increased accordingly.

For patterns with more than four colors or gradient colors, it is basically impossible; b) The cost of small batch production is high, and plate making and film printing are indispensable processes for screen printing. If the product volume is small, the cost of these processes is relatively High, so it is not conducive to small batch production; c) flatness limit, this process is better for products with high flatness, if the roughness is high, the effect is poor

[0005] However, the prior art also discloses shielding spraying technology, which refers to shielding the area of ​​the workpiece surface that does not need to be sprayed, so that the unshielded area in the middle can be sprayed and deposited. The unshielded area is generally in a simple shape such as a rectangle, a square, etc. At the same time, the target workpiece of masking spraying is generally made of structural steel and other materials, and the raw material components used for masking spraying are generally wear-resistant and anti-corrosion powders such as iron-based alloy powder and nickel-based alloy powder, etc. The purpose is to improve the wear-resistant and anti-corrosion performance of the surface of the workpiece. Current spray technology is not suitable for the preparation of decorative wall tiles

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