Office chairs for the tripod is a very important accessory, the evaluation of whether it is a quality office chair products tripod is good or bad related to the overall level of quality. ǔ@this party
Plastic tripod: industrial name: polypropylene (PP letters indicate) Advantages: 1. High bending strength, fatigue resistance, stress cracking resistance
- light weight 3. maintain its mechanical properties at high temperatures Disadvantages: 1. below 0 ℃ easy to become brittle 2. poor weather resistance (most of the northern regions of the winter minimum temperature can be lower than this)
Nylon tripod: nylon 66 (PA66) is usually marked on the bottom of the regular product tripod; chemical formula: (CH 2)5 NHCO
Strength is higher than all polyamide varieties 2. yield strength than nylon 6 and nylon 610, rigid 3. in a wide range of temperatures still have high strength, toughness, rigidity and low friction coefficient 4.
From the above can be seen their respective characteristics, nylon, is the ideal material for the manufacture of chair feet, good climate adaptation. From our long-term observations concluded that the general life of the nylon material tripod can reach about three years, which is one of the reasons why many furniture companies quality assurance for three years. Nylon tripod, the shape is also slightly different from the plastic feet (PP), nylon tripod is obviously more slim, PP feet to ensure that it can be used and therefore slightly thicker. Compared to the plastic tripod nylon feet are much more expensive, so there are also PP tripods on the market with the same shape as nylon feet, but without the PA66 logo. Listen to the sound can also clearly feel the nylon feet more crisp. I hope you can pay more attention to the difference when buying office chairs. More high-quality tripod is of course the aluminum tripod, to distinguish between aluminum feet and ordinary metal feet is also very important. Some poor quality metal feet than nylon feet is still far worse.