PBT flame retardant raw material 420seo-1001 saber foundation produced in Nansha

VALOX™ 420SE0

Filler / reinforcement	Glass fiber reinforced material, 30% Filler by weight
Usage	Switch connector
Processing method	Application of injection molding

PBT (usually refers to modified varieties); a
Electronic appliances: connectors, switch parts, household appliances, accessory parts, small electric covers or (heat resistance, flame retardancy, electrical insulation, molding processability); b
Automobile: 1
External parts: mainly including corner grid, engine heat release hole cover, etc; 2
Internal parts: mainly including endoscope brace, wiper bracket and control system valve; 3
Automotive electrical parts: automotive ignition coil, twisted tube and various electrical connectors
(the number of PBT used in automobiles is less than that of nylon, polycarbonate and polyformaldehyde, but with the emergence of low warpage PBT, it will be more used in automobile parts in the future) C
mechanical equipment: belt drive shaft of video tape recorder, electronic computer cover, mercury lamp cover, electric iron cover, baking machine parts, as well as a large number of gears, cams, buttons, electronic watch shell Camera parts (with heat-resistant and flame-retardant requirements) PBT process features PBT must be dried at 110 ~ 120 ℃ for about 3 hours before injection molding
The molding temperature is 250 ~ 270 ℃, and the mold temperature should be controlled at 50 ~ 75 ℃
Because the material will solidify and crystallize immediately after cooling from the molten state, its cooling time is short; If the nozzle temperature is not properly controlled (low), the flow channel (nozzle) is easy to cool and solidify, and the nozzle will be blocked
If the barrel temperature exceeds 275 ℃ or the molten material stays in the barrel for more than 30 minutes, it is easy to cause the material to decompose and become brittle
Large water inlet is required for PBT injection molding, and hot runner system is not suitable
The mold exhaust should be good, and & ldquo; High speed, medium pressure, medium temperature & rdquo; For molding and processing, fireproof material or PBT nozzle material with glass fiber should not be recycled
PE or PP material should be used to clean the material pipe in time during shutdown to avoid carbonization