Hinges are a type of hardware material commonly used at home, and with the improvement of technology, the types of hinges have become increasingly diverse. A spring hinge hinge is a very intricately designed hinge. This type of hinge can make your furniture and door opening and closing more comfortable and user-friendly. This article will introduce the relevant knowledge of spring hinge hinges.

1、 Springs require steel

The key part of a spring hinge is the spring, and the quality of the spring determines the quality of the hinge. The material used for producing springs is steel, which operates under dynamic load conditions. Therefore, it is required that the steel used for manufacturing springs should have high yield strength and not cause plastic deformation when subjected to heavy loads; Should have high fatigue strength and a long service life under repeated load actions; And it has sufficient toughness and plasticity to prevent sudden brittle fracture under impact force.

Steel with a carbon content between 0.60% and 0.90% in carbon steel is the type of steel used to manufacture springs. However, carbon spring steel has poor permeability and is only suitable for making small section springs. Large section springs need to be made of alloy steel. Due to the strengthening effect of alloying elements in alloy steel, the carbon content of materials that can be used to manufacture springs can be reduced to 0.5-0.7%. Silicon, manganese, chromium, and vanadium are commonly used alloying elements in spring steel. High elasticity can be achieved through medium temperature tempering after general quenching.

2、 To have excellent compatibility

The two-stage force hinge is a furniture spring hinge that is currently used by multiple users worldwide. Due to its slight cushioning, long service life, high economic applicability, and higher product grade compared to the first stage force hinge. Its characteristic is that when closing the door, the door panel can pause at any angle before 45 degrees and close on its own after 45 degrees. Of course, there are also some manufacturers in the market that shut down after 30 degrees Celsius, and some that only shut down after 60 degrees Celsius. But some manufacturers produce products that are not up to standard and will not shut down on their own at 80 degrees Celsius. This is not a design issue, but a defective product.

3、 How to choose hinges

To purchase a good spring hinge hinge, choose a branded product. In addition, it is important to look at the appearance by taking a few more hinges to see if the appearance of the hinges is roughly consistent. Many poor hinge factories produce hinges with unstable electroplating and thin electroplating layers, which can easily rust.

Holding the hinged iron cup, slowly close the hinge as if closing the door. Remember to be slow. If you feel that the hinge is smooth and unobstructed, and even try a few times it is smooth, then the product of this hinge is preliminarily qualified. If there is obstruction or noise in the middle, or even both, then be careful if there is a quality issue with the hinge.

After installing the door, press down slightly to check the force on the hinge. If it is prone to sinking and is severe, be careful that the door panel may become asymmetrical in the future.

Use a professional fatigue testing machine to test its durability, and use a salt spray tester to test its rust resistance.

Use a screwdriver to try adjusting the screws on the hinge and fastening the screws at the tail of the hinge a few times to see if they are prone to slipping. If they do, these hinges cannot be adjusted and are not stable and cannot be purchased.