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Introduction
Spring hinges are commonly used in various applications such as doors, cabinets, and windows. They are designed to provide a smooth and controlled movement while maintaining the position of the object. However, in case of a fire, the performance of spring hinges becomes critical as they are expected to maintain their functionality and prevent the spread of fire. This article aims to discuss the fire-resistant performance of spring hinges.
Fire-resistant materials
Spring hinges can be made of various materials such as steel, brass, and aluminum. However, when it comes to fire resistance, certain materials are more suitable than others. For instance, steel is a commonly used material due to its high melting point and resistance to deformation at high temperatures. Additionally, some manufacturers use intumescent materials that expand when exposed to heat, creating a barrier against fire and smoke.
Testing standards
In order to ensure the fire-resistant performance of spring hinges, they are tested according to specific standards. The most commonly used standard is the UL 10C, which evaluates the ability of a door assembly to prevent the spread of fire and smoke. The test involves exposing the door to a fire for a set period of time and measuring the temperature rise on both sides of the door. The spring hinges are expected to maintain their functionality and prevent the door from sagging or warping.