Material properties of the guide ring - Knowledge - Jiashan Kintowe Engineering Plastic Co., Ltd

Phenolic plastic is a hard and brittle thermosetting plastic, commonly known as bakelite powder. It has high mechanical strength, toughness and wear resistance, dimensional stability, corrosion resistance, and excellent electrical insulation performance. It is suitable for making electrical appliances and instrument insulation components. Condition using formability

1. The formability is good, but the shrinkage and directionality are generally larger than those of aminoplastics, and it contains moisture volatiles. It should be preheated before molding, and exhaust gas should be exhausted during the molding process. If it is not preheated, the mold temperature and molding pressure should be increased.

2. The mold temperature has a great influence on the fluidity. Generally, when it exceeds 160 degrees, the fluidity will drop rapidly.

3. The hardening speed is generally slower than that of amino plastics, and the heat released during hardening is large. The internal temperature of large thick-walled plastic parts is easy to be too high, and it is easy to cause uneven hardening and overheating. Bakelite guide ring: mainly for guiding.

Wear belt:

Applicable working conditions: It is suitable for the guidance of hydraulic cylinders, pistons and piston rings in cylinders, and plays a supporting and guiding role.

Reciprocating speed: ≤15M/S Operating temperature: -60℃~+220℃ Material: PTFE.

Guide ring:

Applicable working conditions: dual-purpose for holes and shafts, supporting and guiding the piston or piston rod.