Laser Marking Machines for Plastics|Laser Marking Parameters and Anti-Carbonization Solutions for Plastics

Want to achieve clear laser marking on plastic? This article provides a parameter configuration guide for different types of plastics, explaining key settings such as power, speed, and frequency, and sharing practical tips for avoiding burning.From ABS to polycarbonate, from toy parts to electronic casings, we teach you how to adjust equipment parameters to suit material characteristics, and how to solve problems such as yellowing or carbonization using methods like layer marking and auxiliary cooling, so that markings on plastic goods are both attractive and do not damage the material.

Plastic materials often face problems of burning, blackening, and unclear markings in the laser marking process.To resolve these problems, the first thing to do is select the right parameters according to the type of plastic. For general-purpose plastics such as ABS, it is recommended to use a power of 30-50W and a moderate scan speed. However, for high-temperature plastics such as polycarbonate, the power should be reduced to 20-35W to prevent carbonization.Frequency settings are also critical, with acrylic suitable for 20-50 kHz high frequency pulses, which can effectively reduce heat buildup.

A multi-faceted plan is needed to prevent forest fires.Using a layering technique to distribute the high energy over multiple scans can reduce the surface temperature by more than 30 %, for example, by changing from one full-power scan to three 40 % power scans.When using compressed air to cool the laser beam, it is recommended that the angle of the air flow be 45 ° to the laser beam. This will allow the heat to be dissipated quickly without interfering with the path of the laser beam.For thin plastic parts, attaching a copper foil heat sink to the back of the marking area is a simple and effective temporary solution.

In special circumstances, one must flexibly adjust one's strategy.For transparent plastics, it is recommended that the 1064-nm wavelength be used with a surface pretreatment agent. With black plastics, care must be taken not to burn too much, which can lead to fraying around the edges.Through comparative testing, it was discovered that the "low frequency roughing, high frequency fine-tuning" process could guarantee a certain depth of marking while maintaining surface smoothness.Regularly cleaning the laser lens and adjusting the light path are also important for maintaining marking quality. It is suggested that you check the condition of the focusing lens for contamination every eight hours of operation.

The Problem of Marking on Clear Plastics Solved: From Parameters to the Complete Solution

Transparent plastics often present problems with unclear markings and damage to the material.They offer a complete solution from laser parameter adjustment, to process selection, to actual operating skills, which helps to solve problems such as blurred or white marks and improves marking efficiency and product quality.

Laser Marking Machine Maintenance: Six Tips for Extending the Life of Your Equipment

Daily maintenance of laser marking equipment is crucial, directly affecting the life of the equipment and marking results.The company shares six easily overlooked tips, including keeping the lens clean, checking the cooling system, and optimizing parameters. These help users extend the life of their equipment, lower the rate of breakdowns, save on maintenance costs, and increase productivity.

How to Choose a Laser Marking Solution that Won't Damage the Material

When selecting a suitable laser marking process for plastics, it is important to ensure that the marking is clear, but also that the surface of the material is not damaged.The speaker will share his insights on how to choose the right laser marking solution for various plastics such as ABS, PP, and PC.

Five Common Mistakes in Setting Parameters in a Laser Marking Machine

If you're just getting started with a laser marking machine, you may have already fallen into one of the common traps of parameter settings. Here are five common mistakes that beginners often make, including problems with power adjustment, speed and frequency settings, and more. Avoid these pitfalls and improve your laser marking efficiency and product quality!

An In-Depth Look at Laser Marking Parameters for ABS and PC

The article explains the differences between ABS and PC in terms of laser marking parameters, including power, speed, and frequency. Based on practical experience, it offers practical suggestions for optimizing the laser marking effect.Whether you are a beginner or an old hand, you can quickly master the techniques of marking both materials and avoid common problems.

How to Fix Black Marks on Plastic

It is a common problem for plastic to turn dark after laser marking, which can be a result of oxidation due to high temperatures or a chemical reaction in the material.This article provides three practical remedies, including rubbing with alcohol, polishing, and applying a protective coating, to help you quickly solve the problem of discoloration and restore the clarity of the marking.

How Much Laser Power Is Enough?

This article addresses the problem of adjusting the power settings on a laser engraver, and provides practical suggestions for avoiding pitfalls.The software includes parameters for common materials such as metal, plastic, and glass, helping users avoid problems such as engraving failure and material damage and improving the quality of the finished product.

Table 1: Parameters for laser marking on five common plastics

The book includes a table of the laser parameters for marking five common plastics (ABS, PC, PP, PET, and acrylic), including the power, speed, and frequency, as well as practical tips.The content focuses on the actual needs of users, to help beginners get started quickly and avoid problems such as materials being burned or markings being unclear due to improper parameters.