Glass is a material of natural origin, composed mostly of silica (SiO2). The material is heated until it reaches the melting point and then left to re-solidify. This procedure yields glass, transparent material with extraordinary resistance to corrosion. Glass does have some defects, though. It is fragile and has a low resistance to thermal expansion.
3 Most Common Commercial Glass Types and Their Applications
In commercial glass manufacturing, several glass compositions are commonly used. We’ll briefly highlight three of the most common commercial glass compositions, their properties, and typical applications.
| Glass Type | Primary Components | Linear Thermal Expansion | Thermal Shock Resistance | Chemical Resistance | Applications |
| Borosilicate | SiO2. B2O3 | -30-60 x 10-7/°C | Average – High | High | • Industrial equipment • Laboratory and kitchen glassware • Exterior Lighting |
| Soda-lime silicate | Si02,Na2O,CaO | -80-100 x 10-7/°C | low | Average | • Lamp envelopes • Windows • Food and Beverage Containers |
| Phosphates | P205 | -90-110 x 10-7/°C | low | Low, except high resistance to hydrofluoric acid | • Bone scaffolds • Optical fibers • Heat absorbers |
Glass Marking
Glass Marking is playing an ever-greater role today. Using Ultra Violet laser technology, glass can be marked using sub-surface engraving or on the surface. Letters, digits, logos, and machine-readable codes are transferred into or onto the glass by a UV laser beam in just a few seconds. These laser markings cannot be removed or rubbed off and are subtle.
Whether you need Logo, barcodes, data matrix or QR codes, alphanumeric signs, serial numbers, and safety glass stamps or certified marks, you can be flexible with the Ultra Violet laser marking technology and mark your products securely in top quality.
Laser Marking on Glass by Engraving
During engraving the intense laser beam creates micro-cracks on the substrate and bypassing over the marking area creates a nice “field of micro-cracks” that reflects light and appears as a beautiful sand-blasted matt finish that you see in the final artifact. The actual mechanism of laser interaction with the material is rather complex.
It depends on the type of laser as well as the conditions of radiation, such as its power, wavelength, focusing, frequency of pulses and more. This is so small that the integrity of the substrate is not compromised; yet big enough to create the visual effect of a matte finish.
How laser technology works on glass
The glass contains trapped microbubbles of air. When the UV laser touches upon the surface, it heats and causes the dilatation of these bubbles. Due to the material’s lack of flexibility, this dilatation generates micro-fractures.The marking of glass is playing an ever-greater role today.
UV LASER MARKING MACHINE
Another name of the UV Laser Marking Machine is Cold laser engraving and also knows as the blue laser beam, this technology has the capacity of engraving with a low rate of heat. The lightwave or UV light spectrum of this machine is one of the main reasons. This technology can engrave over different materials because it doesn’t heat the material surface as the Fiber and the CO2 does.
It allows the UV laser to mark clear and with high precision over all the plastics and other materials that have an adverse reaction with heat.UV Laser Marking Machine is an advanced technology of laser which obtained a 100% indelible pattern. This machine Takes 355nm Light Laser source that gains a smaller diameter of focusing spot and fine marking effect. Their Unique wavelength enables product marking where normal fiber laser can not work.
Quality of laser beam in ultraviolet laser marking machine is extremely fine which results smooth, clear and precise marking on a wide range of products rubber, nylon, glass, plastic, and other metals.
UV Laser Marking Machine features
- It offers a non-contact, abrasion-resistant, permanent laser marking onto almost any type of non-metallic material.
- Fast marking speed
- Supreme performance with low energy consumption
- Excellent beam quality, small focused laser spot, small heat-affected zone enabling superfine marking.
- Power stability and low noise
- No Consumables & High precision marking
- Easy Automation
- The software of UV Laser marking machine for creating and editing engraving designs is user-friendly.
UNIQUENESS OF UV Laser Marking Machines?
UV laser Marking Machine is able to use the automatization system like rotary engraving, linear guide engraving, conveyor engraving system and Camera Capture System. The UV laser specially designed for marking on plastics and glass — the UV laser machine can engrave a vast number of materials, from metals to paper. There is only one disadvantage of the UV laser technology is “the weak engraving over the metals, if you are looking for a machine that can engrave and carve metals, then the fiber laser engraving machine is going to be a better option.”The UV laser is one of those technologies that can engrave over glass surfaces without a break or overheat the material. You can create attractive patterns and engravings without splinter glass results. Laser marking is the most common technique applied to glass. It is usually used for decorations or the marking of codes, certified marks, logos, and other information.
I hope this article gave you some enlighten introduction of glass marking by Ultra-Violet Laser Marking Machine & Stay connected for other articles.
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