SOLVAY Ryton PPS R-7-220BL is a black polyphenylene sulfide raw material with glass fiber and mineral filling, characterized by high hydrolytic stability, creep resistance, high modulus and good dimensional stability , the material advantages are precision molding, flame retardant, good electrical properties, thermosetting resin substitute materials, thermal shock resistance, used in alternator components, motor brush holders, busbars, connectors, housings, ignition components, lead frames, motor components , resolvers, sensors, switches.
During the molding process of Solvay Ryton PPS R-7-220BL, when the melt flows to the front end and gathers together in reverse, a weld line will be formed. Typically, the resin is richer at the weld line interface because glass fibers tend not to cross the interface. The mechanical strength along the weld line is low due to weak glass fiber reinforcement at the weld line. The gate location and fill pattern should be designed so that weld lines are eliminated as much as possible or placed in areas of least stress. If a weld line must be stressed, the part design should compensate for the typical weld line strength indicated below. Weld line strength is closely related to molding conditions, so part and tool design should allow for fast injection, fluid front temperature, and thorough coating. The phenomenon of air inclusion is very detrimental to the strength of the weld line. Therefore, care should be taken to avoid backflow when designing the mold, and to ensure that the area where the weld line may be formed is fully exhausted.
Nozzle | 290~300℃ | Mold temperature | 60-80℃ | ||
Processing (melt) temperature | 235 to 280°C | Injection pressure | 60 to 70Mpa4 | ||
Warm up | Temperature/°C | 130°C | work Arts See number |
Injection time | |
time/h | 3.0hr | High Pressure Time | 0~5 | ||
Drum temperature/°C | Back paragraph | 300~320℃ | cooling time | 20~90 | |
Middle | 290~310℃ | Total period | 220 to 260°C | ||
Previous paragraph | 220~260℃ | Screw revolutions | 28 |
The following are the physical properties of Solvay Ryton PPS R-7-220BL
Product Application Introduction | Applications in the automotive field | |||
Performance | Test conditions | Unit | Standard | Number |
Specific Gravity | g/cm3 | ASTM D792 | 1.95 | |
Shrinkage | flow | % | 0.20mm | 0.20 |
Unnotched Izod impact | 3.18mm | J/cm | ASTMD4812 | 270 |
Flexural modulus | MPa | ASTMD790 | 19300 | |
Vicat softening temperature | Thickness 1.50mm | °C | Rate B; ASTM D1525 | 256 |
Flammability (UL94) | class | IEC 60695-11-10 | V0 |
The following are the parameters of the Belgian-Solvay Plastics Ryton R-7-220BL physical properties table
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