Explosion-proof glass is a kind of special glass with anti-impact and explosion-proof properties, which is widely used in construction, security, automobile and other fields. It achieves the effect of strengthening and protection through special manufacturing process and material combination.
The main production principle of explosion-proof glass is the principle of laminated glass. Laminated glass is composed of a special polymer laminated film added between two layers of glass. Polymer sandwich films are usually made of materials such as polyvinyl alcohol (PVB) or polyacrylate (EVA). The sandwich film has excellent adhesion and strong energy absorption ability, which can effectively absorb and disperse the impact force.
Second, the production process
Glass selection: First of all, you need to choose the suitable glass material. Common glass materials are tempered glass, laminated glass, single-layer glass and so on. Among them, tempered glass is a common material for making explosion-proof glass because of its high strength and impact resistance.
Cutting processing: According to the required size, the glass is cut into the corresponding size and shape. It is usually processed by mechanical or laser cutting.
Glass cleaning: clean the cut glass to remove dust, oil and other impurities to ensure the clean surface of the glass.
Prepare the sandwich film: Place the pre-cut polymer sandwich film between two pieces of glass. The thickness of the sandwich film and the choice of material are determined according to the specific application requirements.
Heating and pressing: the sandwich film and the glass are heated together so that the bond between the sandwich film and the glass occurs. The sandwich film is then firmly bonded to the glass by a pressurized operation.
Cooling treatment: Through cooling treatment, the bond between the film and the glass is more stable.
Three, explosion-proof principle
Energy absorption dispersions impact force: When the external impact acts on the explosion-proof glass, the glass may break, but because of the presence of the sandwich film, the debris will be absorbed and dispersed by the sandwich film, avoiding the damage caused by the debris splash.
Prevent invasion: Even if the glass is broken, the sandwich film still plays a certain barrier role to prevent external objects from further entering the room through the break.
Maintain structural integrity: The sandwich film can effectively maintain the overall structural integrity of the explosion-proof glass and prevent the spread of damaged areas.
Ultraviolet protection: the sandwich film can effectively block ultraviolet radiation and reduce the damage of ultraviolet rays to indoor items.
It should be noted that although explosion-proof glass has a certain impact resistance, it cannot completely resist all impacts. In actual use, it is still necessary to choose the appropriate explosion-proof glass material and thickness according to the specific needs to ensure safety performance.
In summary, explosion-proof glass achieves impact resistance and explosion-proof effect through the production principle of laminated glass and the characteristics of energy absorption and intrusion prevention of laminated film. The manufacturing process is widely used in construction and security fields, providing higher safety and protection performance.