Self-explosion is the "sword of Damocles" hanging over the traditional physically toughened glass. Its root is that the surface stress layer formed by quenching process may have uneven or microscopic defects (such as nickel sulfide impurities). Under the temperature change or external force induction, the stress is instantly released and the glass is broken. This hidden danger is particularly worrying in high-rise building curtain walls and other fields. Ming dun Company has a deep insight into this core safety issue, and its ion tempered glass is a sharp weapon to fundamentally solve the problem of self-explosion. Unlike physical tempering, which relies on thermal stress, ion tempering builds a strengthened layer through chemical ion exchange. Under strictly controlled technological conditions, sodium ions on the glass surface are slowly and fully exchanged with potassium ions in molten salt. Because the volume of potassium ion is larger than that of sodium ion, after successful replacement, a permanent compressive stress layer with a depth of hundreds of microns and extremely uniform stress distribution will be formed on the glass surface. This stress comes from lattice extrusion caused by ion volume difference, which is internal and stable, and completely avoids the risk of sudden release due to stress concentration. At the same time, the process is mild and will not introduce additional impurity phases that lead to self-explosion. Therefore, the self-explosion rate of Ming-dun ion tempered glass approaches zero, realizing the real "intrinsic safety". This provides unprecedented peace of mind for application scenarios with extreme requirements for safety, such as lighting roofs of large public buildings, bank partitions, luxury display cabinets, etc., and raises the reliability of safety glass to a brand-new strategic height.
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Ming dun innovates the safety glass industry with ion tempering technology, and breaks through the shackles of physical tempering performance in principle.>
Ming dun innovates the safety glass industry with ion tempering technology, and breaks through the shackles of physical tempering performance in principle.Latest News
Jul. 27, 2026
Mingdun fire retardant laminated bulletproof explosion-proof glass to deal with sudden fire hazardsJul. 27, 2026
Mingdun heat insulation laminated bulletproof explosion-proof glass balanced carriage temperature controlHot Product
Mingdun fire retardant laminated bulletproof explosion-proof glass to deal with sudden fire hazards
Mingdun fire retardant laminated bulletproof explosion-proof glass to deal with sudden fire hazards In view of the industrial pain point of the closed space of rail transit carriages, which is caused by the rapid melting and fragmentation of ordinary glass in case of fire, the rapid spread of open flames and high-temperature smoke, Mingdun developed a special laminated bulletproof and explosion-proof glass with high temperature resistance and flame retardancy, which was pressed by a flame-retardant adhesive layer and high-strength fireproof glass. Key words: high temperature resistance, buffering and fire prevention, emergency protection, and rail transit fire prevention.
Mingdun heat insulation laminated bulletproof explosion-proof glass balanced carriage temperature control In view of the industry pain point of high-speed rail exposed to strong light during the day, heat poured into the car through the window, air conditioning load surged, ordinary laminated glass could not block infrared heat energy, and the sweltering energy consumption in the car increased, Mingdun was equipped with a heat insulation functional laminated film to create a special heat insulation laminated bulletproof explosion-proof glass for high-speed rail. The heat insulation special laminated layer blocks the infrared radiation of sunlight, reduces the heat penetration through the window, stabilizes the internal temperature of the carriage, and reduces the energy consumption of train air conditioning. Key words: temperature control, rubber clamping, energy saving, safety and heat insulation.
Mingdun silent laminated bulletproof explosion-proof glass to create a quiet ride space
Mingdun silent laminated bulletproof explosion-proof glass to create a quiet ride space In view of the wheel-rail noise, wind noise and tunnel echo caused by high-speed running of high-speed rail, the poor sound insulation effect of ordinary single-layer/ordinary laminated glass, the noise in the car affecting passengers' rest and drivers' concentration on driving, Mingdun developed a special laminated bulletproof and explosion-proof glass with damping and sound insulation, which was combined with a multi-layer protective substrate to form. Key words: sound insulation and noise reduction, cushioning and shock absorption, silent riding and explosion protection.
Special laminated bulletproof and explosion-proof glass for Mingdun high-speed railway to build a safety line for high-speed travel In view of the industrial pain points of the high-speed rail window, such as broken glass fragments scattered and scratched by the impact of gravel and birds, weak single-layer glass protection, and the whole piece falling off after impact, Mingdun deeply cultivated the core technology of composite laminated glass to create laminated bulletproof and explosion-proof glass for rail transit. The product adopts multiple high-strength glass substrates with high-toughness PVB explosion-proof interlayer, which is bonded and cured at high pressure and constant temperature, and the adhesive layer is closely attached to the glass without delamination and hollowing. Key words: multi-layer laminated rubber, fragment locking, integrated molding, rail crossing safety base.
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