Technical Analysis of Vacuum Glass: Configuration Selection, Production Processes, and Stress Treatment

As a benchmark in high-end energy-saving glass, LandVac (Titanium Vacuum Glass) often faces technical inquiries regarding composite configuration, deep processing, and project-specific applications. This article compiles core Q&As concerning laminated vacuum glass selection, production workflows, and stress management for large-scale products to provide precise technical references for design and implementation.

Q1: Is Heat-Strengthened glass available as a secondary pane for laminated vacuum glass?

A: Yes. Current LandVac titanium vacuum glass composite laminated products can utilise Heat-Strengthened glass as the secondary pane. This configuration is a common and proven combination in various practical project applications.

Q2: Can large-scale vacuum glass undergo "heat soak-like" stress relief treatment?

A: Yes. The LandVac production line includes a homogenization-like stress relief process for finished vacuum glass. By overcoming equipment width constraints, both standard and oversized vacuum glass panels undergo specific technical treatments to ensure uniform stress distribution. This process significantly enhances the safety and long-term stability of the product.

Q3: What is the difference between "One-Step" and "Two-Step" vacuum glass production?

A: One-Step Method: The exhaustion (evacuation) and sealing processes are performed simultaneously inside a vacuum chamber. The product is completed in a single cycle.

Two-Step Method: The glass edges are sealed first. Then, air is extracted through a dedicated suction hole or side-exhaust, followed by a second sealing process. 

Comparison: Because the two-step method involves cumbersome procedures and lower efficiency, the vast majority of modern manufacturers (including LandGlass) have transitioned away from it in favor of the more efficient one-step process.