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Metallurgical furnace front protective clothing, polyimide flame-retardant layer isolates molten metal splashes

Jul 23,2025

In the metallurgical workshop, the temperature of splashing molten steel reaches 1600℃, and it can penetrate ordinary protective clothing in 0.1 seconds; the kinetic energy of splashing aluminum and copper is comparable to bullet impact, and traditional protective materials frequently fail...Behind the metallurgical burns that occur every year is a serious lag in material technology. The polyimide flame-retardant layer, with its defense-grade protection performance, builds a life-saving line for metallurgical workers.

Metallurgical operations usually face extreme working conditions, such as the high temperature of molten metal over one thousand degrees, and the molten metal splashing impact has high kinetic energy and high thermal radiation intensity.

Traditional protective materials are not very effective in protection, such as asbestos protective clothing: carcinogenic and ineffective when wet, it has been banned by the EU; aluminum foil thermal insulation clothing: poor impact resistance, and burns are aggravated after molten metal adhesion; ordinary flame-retardant cloth: LOI <28%, high-temperature molten drops cause secondary injuries.

Polyimide flame-retardant layer

1. Inherent flame retardancy and high temperature resistance

The limiting oxygen index of polyimide flame-retardant fabric is greater than 38%, it does not burn when exposed to an open flame, and it self-extinguishes after leaving the flame, and has flame-retardant properties.

Long-term tolerance of 500℃, instantaneous resistance to 1600℃ impact.

Anti-molten drop, no molten drops are produced under high-temperature combustion.

2. High strength, lightweight and easy to shear

Polyimide flame-retardant fabric is lightweight, easy to fold, and easy to shear, and can be cut into any specification, size, and length. It has good spinnability.

Application solutions for polyimide flame-retardant fabric

1. Steelmaking operation system

One-piece protective clothing, multi-layer composite structure, breathable and sweat-absorbing.

Anti-splashing face shield: polyimide + ceramic fiber composite protection.

2. Non-ferrous metal smelting

Anti-aluminum liquid adhesion layer: nano-ceramic coating, metal adhesion is reduced by 90%

Modular design: 30 seconds quick replacement of damaged parts

Anti-static grounding strap: eliminate accumulated charge on equipment

3. Customized for special working conditions

Vacuum induction furnace protection: high temperature resistance + anti-metal vapor penetration

Continuous casting platform suit: anti-heat radiation reflectivity >95%

Emergency rescue suit: integrated GPS positioning + vital signs monitoring