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Characteristics and Types of Sheet Metal Hinges


Sheet metal hinges are mechanical components used to facilitate the rotation or movement of two connected objects, typically panels or doors, around a fixed axis. These hinges are made from thin sheets of metal, often steel, aluminum, or stainless steel, that are formed, stamped, or welded into the desired hinge shape.

Here are some key characteristics and types of sheet metal hinges:

1. Flat leaf hinge: This type of hinge consists of two flat metal leaves joined together by a pin or rod. The leaves are typically thin and flat, with pre-drilled holes for mounting screws or rivets. Flat leaf hinges are commonly used for lightweight doors, cabinets, boxes, and other applications where simple rotational movement is required.

2. Butt hinge: Butt hinges are similar to flat leaf hinges but have one leaf shorter than the other, allowing the hinge to be mortised into the edge of a door or panel for a flush installation. They are commonly used for doors, cabinets, furniture, and other applications requiring a clean and concealed hinge design.

3. Continuous hinge (piano hinge): Continuous hinges are long, narrow strips of sheet metal with evenly spaced knuckles along the entire length. They provide continuous support and smooth rotational movement across the entire length of the hinge, making them ideal for applications such as doors, lids, access panels, and folding partitions.

4. Strap hinge: Strap hinges consist of a flat metal strap attached to a mounting surface, with a knuckle or pin at one end to allow rotational movement. They are commonly used for gates, barn doors, heavy-duty cabinets, and outdoor applications where strength and durability are important.

5. Friction hinge: Friction hinges incorporate a friction mechanism to control the resistance and smoothness of movement between the hinge leaves. They are often used in laptop computers, electronic devices, and automotive applications to provide controlled opening and closing motion without the need for additional hardware or latches.

6. Specialized hinges: In addition to standard hinge types, sheet metal hinges can be customized or specialized to meet specific application requirements. This may include features such as spring-loaded hinges, concealed hinges, removable hinges, or hinges with built-in locking mechanisms.

Sheet metal hinges offer several advantages, including strength, durability, corrosion resistance, and versatility in design. They are commonly used in various industries and applications where reliable and efficient rotational movement is needed for doors, panels, covers, and other components.

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