Comprehensive Guide to Glass Deep Processing: Processes & Applications

I. Core Definition of Deep Processing

Glass deep processing refers to the secondary processing of raw flat glass (float glass) directly supplied by glass manufacturers. Through a series of technological optimizations, it enhances the safety performance, functional characteristics, or aesthetic appeal of glass, ultimately meeting the personalized needs of multiple fields such as construction, home furnishing, automotive, and electronics. After deep processing, the added value of raw glass can be increased several times, while adapting to the core demands for safety, energy efficiency, and intelligence in modern scenarios.

II. Main Processing Procedures

(I) Basic Processing Stages

Cutting: Process large-sized raw glass into specific shapes and dimensions according to customer requirements, including straight-line cutting, CNC numerical control special-shaped cutting, and drilling.
Edge Grinding/Chamfering: Grind the edges of cut glass into straight, round, beveled, or other profiles to eliminate sharp edges, ensuring both safety and aesthetic appeal.
Cleaning & Drying: Remove impurities, oil stains, and dust from the glass surface to provide a clean base for subsequent processes such as coating and lamination, ensuring processing adhesion.

(II) Strengthening & Functional Processing Stages

Tempering (Strengthening)
- Physical Tempering: Heat glass to its softening point and then rapidly cool it, forming a compressive stress layer on the surface. This increases strength by 4-5 times, and the glass breaks into granular fragments (classified as safety glass).
- Chemical Tempering: Enhance strength through ion exchange technology, suitable for thin glass or special-shaped glass processing.
Coating
- Low-E Coating: Apply metal or oxide layers via vacuum magnetron sputtering to reflect infrared rays, achieving energy saving and thermal insulation.
- Solar Control Coating: Reduce solar radiant heat entering indoor spaces and adjust light transmission.
- Self-Cleaning Coating: Utilize photocatalytic principles to decompose surface stains, reducing maintenance costs.
Lamination: Sandwich PVB, EVA, or other interlayers between two glass sheets, bonding them under high temperature and pressure. The glass does not splinter when broken, offering explosion-proof and protective performance.
Insulated Glass Production: Separate two or more glass sheets with spacers and fill the cavity with dry air or inert gas (e.g., argon) to significantly improve sound and thermal insulation.

(III) Decoration & Forming Processing Stages

Printing/Decoration: Include screen printing (for color patterns or logos), digital printing (for complex personalized designs), and etching/sandblasting (for frosted effects).
Bending/Thermal Bending: Heat glass to soften it and press it into curved or arched shapes to meet special design requirements.

III. Core Types of Deep-Processed Glass & Application Scenarios

Glass Type	Core Processing Technology	Typical Application Scenarios
Tempered Glass	Physical/Chemical Tempering	Building doors/windows, curtain walls, shower enclosures, furniture panels
Laminated Glass	High-temperature & high-pressure bonding with PVB/EVA interlayers	Bank explosion-proof glass, building skylights, high-altitude curtain walls
Low-E Glass	Vacuum Magnetron Sputtering Coating	Energy-saving building doors/windows, refrigerator doors, high-end residential curtain walls
Insulated Glass	Glass + Spacers + Sealant + Dry Gas Filling	High-rise building doors/windows, airport terminals, residential soundproof windows
Ceramic Fritted Glass	Screen Printing + Tempering	Building exterior decoration, subway stations, commercial complex curtain walls
Fire-Resistant Glass	Lamination with special gel/Cesium-Potassium treatment	Building fire compartments, safety exits, equipment room partitions
Smart Tinting Glass	Lamination with PDLC electrically controlled dimming film	Office partitions, hotel rooms, high-end meeting room privacy glass

IV. Key Deep Processing Equipment

Processing Stage	Core Equipment List
Cutting	CNC automatic cutting table, CNC special-shaped cutting machine
Edge Grinding	Straight-line edge grinder, special-shaped edge grinder, chamfering machine
Tempering	Horizontal tempering furnace, vertical tempering furnace, chemical tempering equipment
Coating	Vacuum magnetron sputtering coating production line
Lamination	Autoclave, vacuum pre-presser, interlayer laminating equipment
Insulated Glass	Automatic gas filling and sealing system, spacer installation machine, dry gas filling equipment
Decoration	Screen printing machine, digital printer, etching/sandblasting equipment
Thermal Bending	Glass bending furnace, curved pressing mold

V. Quality Control Standards

(I) Safety Standards

Tempered Glass: Complies with GB 15763.2 National Standard
Laminated Glass: Complies with GB 15763.3 National Standard
Fire-Resistant Glass: Complies with corresponding fire protection product safety certification standards

(II) Performance Standards

Optical Performance: Meeting standards for visible light transmittance, UV blocking rate, infrared reflectance, etc.
Durability: Damp-heat resistance test, aging resistance test (e.g., dew point detection for insulated glass)
Process Precision: Dimensional tolerance, edge flatness, coating adhesion, etc., complying with industry specifications

VI. Core Application Fields

(I) Construction Field

Main Products: Curtain wall glass, energy-saving door/window glass, skylight glass, fire-resistant partition glass, decorative ceramic fritted glass
Core Requirements: Explosion-proof safety, energy saving & thermal insulation, sound insulation, aesthetic decoration

(II) Home Furnishing Field

Main Products: Tempered coffee table glass, bathroom partition glass, mirror glass, custom decorative glass
Core Requirements: Shatterproof safety, easy cleaning, personalized design

(III) Automotive Field

Main Products: Windshields, side windows, sunroofs, rearview mirror glass
Core Requirements: Explosion-proof & anti-splintering, high light transmittance, strong impact resistance

(IV) Electronics Field

Main Products: Mobile phone cover glass, TV panel glass, smart device touch glass
Core Requirements: High strength, high light transmittance, scratch resistance

(V) Photovoltaic Field

Main Products: Solar cell encapsulation glass
Core Requirements: High light transmittance, excellent weather resistance, strong insulation performance

VII. Principles of Process Selection

Enterprises should select corresponding processing technology combinations based on the core needs of end-use scenarios (e.g., safety, energy efficiency, privacy, shape), while strictly adhering to relevant quality standards to ensure that product performance is highly compatible with application scenarios.

Post time: Dec-17-2025