Laser Marking of Ceramics|Lasers for Ceramic Marking

Laser marking on the surface of ceramic products faces such problems as the fragility of the material, the tendency of the material to burn at high temperatures, and the difficulty of producing a clear image.It has developed solutions to a number of core issues in laser marking, including laser power control, surface pretreatment processes, and optimization of marking parameters.By analyzing the characteristics of different ceramic materials, and drawing on past examples of equipment adjustments, we can help customers solve common problems such as yellowing, cracking, and insufficient contrast, and improve the stability of the process and the yield of finished products.

Ceramics are hard and have poor thermal conductivity, so it is easy for problems to occur during laser marking, such as scorching, chipping and blurred images.First, glaze is prone to cracking when heated. It is suggested that the laser power should be reduced to 20-30W, and that pulse mode should be used to minimize thermal effects.Secondly, dark ceramics absorb a lot of light, so it is easy for them to carbonize and turn black when being marked. This can be solved by applying a protective layer of nano-silica before marking, and controlling the energy input using high-speed scanning technology of 3000mm / s or more.For white ceramics, which have a low contrast ratio, the use of dual-frequency laser beams (such as a 1064-nm beam combined with a 355-nm beam) can effectively increase the oxidation level, changing the color of the marking from light gray to dark black.

In terms of equipment parameters, it is recommended that the laser be adjusted in stages. First, a low power setting (15 W) is used to pre-clean the surface. Next, depending on the thickness of the material, a focal distance offset of 0.05-0.2 mm is selected. Finally, the laser is run through 5-10 sets of step power tests to determine the optimal parameter combination.For ceramic materials with curved surfaces, the six-axis robot arm and real-time focal-point tracking system ensure that the laser beam is always perpendicular to the work surface.In one actual case, a company that manufactures bone china tableware was able to reduce its labeling failure rate from 32 % to 6.8 % and increase production efficiency by 40 % after adopting the preprocessing + parameter optimization approach.The article also includes a detailed table comparing the parameters of commonly used ceramic materials (alumina, silicon carbide, and porcelain).

How to Select a Laser Engraving Machine

When ceramic manufacturers are selecting laser marking equipment, they often fall into traps because of the complexity of the specifications and the large number of suppliers.We will help you avoid common pitfalls and grasp the essential points of choosing an industrial marking device.

The Laser Marking Process: A Comparison of Ceramic and Industrial Ceramics

By contrasting the core differences between laser marking technology for household ceramics and industrial ceramics, including material properties, equipment parameter adjustments, and practical application scenarios, we hope to help users select the appropriate technology based on their needs, thereby improving processing efficiency and product quality.Keywords: laser marking, processing of porcelain, industrial ceramics.

Laser Marking Ceramics: Temperature Control Is the Key

The cracking of ceramics after the laser has been applied is most often related to improper temperature control.It helps you set parameters, reducing processing losses and improving yield.

Laser Marking Parameters for Different Types of Ceramic (PDF)

It provides a laser marking parameter comparison table for different ceramic materials, including alumina, silicon carbide, and zirconia. It also provides advice on key parameters such as power, speed, and frequency, and a downloadable parameter comparison table, helping users quickly get to grips with ceramic laser marking processes, and improving marking efficiency and precision.

Laser Marking on Curved Ceramic Surfaces: A Case Study in Equipment Modification

To address the problems of blurriness and breakage in laser etching on curved surfaces, the company offers three low-cost, high-efficiency solutions: upgrading the laser head positioning system, customizing rotating fixtures, and optimizing parameters.

White Ceramics: Can't See the Mark?

Are you having trouble with blurry or low-contrast laser marking on white ceramic? We offer three practical solutions to help you quickly solve this problem and improve your product identification quality: optimizing laser parameters, pre-treating the ceramic surface, and using an auxiliary coating.

Five Tips for Getting the Most Out of Your Ceramic Cookware

Burning is a common problem during the firing process in ceramics. This article shares five practical techniques for solving this problem, including controlling the kiln temperature, optimizing the glaze composition, and adjusting the firing environment. These tips will help pottery enthusiasts and professionals pinpoint the root cause of burning and resolve it quickly and easily.

A Guide to Setting Laser Marking Parameters in Ceramics: From Beginner to Expert

The book provides a practical guide to the parameters of ceramic laser marking, from the basics to precision control.The technology optimizes core parameters such as laser power, speed, and frequency, and combines these with the characteristics of different ceramic materials, enabling users to solve problems such as blurred engraving and cracks, and thus improve marking efficiency and product quality.