Friction hinges

Description

We are a factory specializing in the production of  friction hinges , boasting 15 years of industry experience. We have extensive experience in manufacturing spare parts and a complete supply chain.

We can provide you with a complete set of solutions, from the friction hinge design to the production.

The friction hinge has an uncomplicated structure, is easy to install, and has good wear resistance and corrosion resistance. 

The friction hinge is an important mechanical transmission component, which can effectively disperse and absorb the impact force and vibration force in the system, reduce the vibration and noise inside the system, and improve the stability and reliability of the system.

The frictin hinge features strong flexibility and wide application range. It can be designed and customized according to actual needs to meet the requirements of different systems.

Our friction hinges are applicable to numerous industries, please check the following categories for details:

1. Friction hinges for TV box, printer, humidifier, teaching equipment, camera, video player, imaging equipment, plastic DV, solar cell, dishwasher, audio equipment, banking equipment, sports DV, support  bracket

2. Friction hinges for Desk lamp, high-speed camera

3. Friction hinges for Unmanned aerial vehicles (UAVs)

4. Friction hinges for Home and meetings

5. Friction hinges for Cash Registers

6. Friction hinges for Military industry security

7. Friction hinges for Medical devices

8.Friction hinges for Notebook computer

9. Friction hinges for IPAD Bluetooth keyboard

10. Friction hinges for Single-line type

11. Friction hinges for Industrial control equipment

12. Friction hinges for Vehicle-mounted

The hinge structural design 

The hinge structural design is an important step in determining the reasonable shape and dimensions. 

It is related to factors such as the type, size and position of the parts installed, the fixation method of the parts, the nature, direction, magnitude and distribution of the load, 

the type and size of the bearing, the blank of the hinge, the manufacturing and assembly process, installation and transportation, and the deformation of the shaft. 

Designers can carry out the design based on the specific requirements of the hinge. 

When necessary, several schemes can be made for comparison to select the best. The following are the general design principles of the hinge structure:

1. The hinge should save materials, reduce weight, and adopt a cross-sectional shape with equal strength external dimensions or a large cross-sectional coefficient as much as possible.

2. It is easy to precisely position, stabilize, assemble, disassemble and adjust the parts on the hinge.

3. Adopt various structural measures to reduce stress concentration and enhance strength;

4. The hinge is convenient for processing and manufacturing and ensures accuracy.

In what aspects is the anti-corrosion function of the hinge reflected

The common flip cover hinges we see all undergo electroplating processes. 

If you want to enhance the anti-corrosion performance of the hinge, you need to check whether the electroplating layer on the surface of the hinge is uniform.

In simple terms, it refers to whether the surface of the hinge is smooth, precise, and whether the thickness of the plating layer is uniform. 

Therefore, the more uniform the thickness distribution of the surface coating on the hinge is, the better.  It is mainly reflected in the following aspects;

The anti-corrosion performance of the galvanized coating depends on the thickness of the coating and the exposure environment. 

The harsher the usage conditions, the thicker the coating required for the hinge.

Where the coating on the surface of the rotating shaft is too thick, phenomena such as roughness, scabbing and peeling are prone to occur.

Where the coating on the surface of the rotating shaft is too thin, the gloss is poor, it appears dark and foggy, and the base is prone to be exposed during the process of brightening and passivation.

In terms of the anti-corrosion, appearance and performance of the hinge, it is necessary to improve the uniformity of the coating thickness of the hinge. 

For hinge parts with precise dimensional requirements, when the uniformity of the coating thickness is poor, it is necessary to significantly increase the average coating thickness. 

Therefore, during the electroplating process of the hinge, factors such as current density, time, temperature, main salt concentration, anode area, 

and plating solution stirring will all have an impact on the uniformity of the coating thickness of the hinge.

What surface treatments are there for friction hinge in high-temperature environments?

For friction hinges used in high-temperature environments, the following several surface treatment methods are more suitable:

1. Hard anodizing (hard oxidation), the oxide film can withstand high-temperature environments above 300°C.

2. Electroless nickel plating

The nickel plating layer can generally withstand high-temperature conditions of around 250°C.

3. Nitriding treatment

It enables the surface to withstand high-temperature environments above 400°C. 

4. Vacuum coating

It can maintain good performance at temperatures above 500°C. In addition,.

The above-mentioned several surface treatment methods can be combined for use to further enhance the service life and performance of the friction hinge in high-temperature environments.