Q&A

LUMPING

  • INCOMPLETE COATING—ADD ANTI-LUMPING AGENT OR IMPROVE COATING PROCESS
  • OVER HEATING—CONTROL STEAM INTRODUCING, CONSISTING INPUT OF EPS
  • HIGH LEVEL WATER—CHECK COMPRESSION AIR SYSTEM, DEWATER OF STEAM, CONDENSATION WATER DRAINNING
  • AGED MATERIAL—WELL STOCK MANAGEMENT

HIGH HUMIDITY

  • STEAM SUPPLY PROBLEM—DEWATER OF STEAM, PIPE AND PRE-EXPANDER CONDENSATION WATER DRAINNING, TOP STEAM VENTILATING
  • HEAT LOSE—IMPROVE PIPE AND PRE-EXPANDER INSULATION
  • INADEQUATE COATED MATERIAL—REDUCE HYDROPHILIC COATING

LOW EXPANSION RATE

  • STEAM SUPPLY—HIGHER STEAM PRESSURE, HIGHER STEAM TEMPERATURE, CLEAN STEAM SPIRACLES
  • EPS INPUT RATE—REDUCE INPUT RATE
  • RETENTION TIME—EXTEND RETENTION TIME
  • AGED MATERIAL—WELL STOCK MANAGEMENT
  • BEADS SIZE—BIGGER IS BETTER
  • HIGH HUMIDITY BEADS—RAW MATERIAL, PRE-EXPANDER, STEAM

UNEVEN FOAM DENSITY

  • UNEVEN EPS INPUT RATE—CONSISTING INPUT OF EPS
  • UNEVEN STEAM SUPPLY —CONTROL STEAM INTRODUCING
  • UNEVEN MATERIAL—BEADS SIZE, MIXED LOT MATERIAL
  • EXPANSION CAPABILITY—CHOOSE SUITABLE MATERIAL

DEFORM OR SHRINKAGE

  • OVER HEATING—REDUCE STEAM SUPPLY, SHORTEN RETENTION TIME
  • LARGE TEMPERATURE DIFFERENCE—RISE FLUID BED AIR TEMPERATURE, REDUCE TRANSFER SPEED *MIXED MATERIAL - BEADS SIZE, DIFFERENT LOT
  • MECHANICAL DAMAGE—REDUCE AGITATOR SPEED,USE BLOWER INSTEAD OF MPELLER, MODIFY TRANSFER PIPE
  • PROBLEMS AND SOLUTIONS OF EPS MOULDING

POOR FUSION

  • STEAM SUPPLY—CHECK STEAM SUPPLY SYSTEM, ADJUDGE HEATING PERIOD
  • MOULD PROBLEM— STEAM SPIRACLES DESIGN, CLEAN STEAM SPIRACLES AND SCALE, IMPORVE MOULD SEALING
  • LONG AGING TIME—SHORTEN AGING TIME
  • OVER-EXPANDED BEADS—CONTROL DENSITY
  • *HIGH HUMIDITY OF FOAMED BEADS—PROLONG AGING TIME, DRYING THE BEADS
  • *COATING PROBLEM—WELL CONTROL COATING

MOULD RELEASING PROBLEM

  • OVER HEATING—REDUCE HEATING TIME OR/AND HEATING TEMPERATURE
  • INSUFFICIENT COOLING—CHECK COOLING SYSTEM, PROLONG COOLING TIME
  • MOULD PROBLEM—SMOOTHEN THE MOULD, CLEAN OR RENEW SPIRACLES, EJECTION ARMS
  • COMPRESS AIR PROBLEM—CHECK COMPRESS AIR SYSTEM

SHRINKAGE

  • OVER HEATING—SHORTEN OR/AND REDUCE HEATING TIME
  • OVER COOLING—REDUCE WATER COOLING
  • INSUFFICIENT FILLING—CHECK FILLING SYSTEM, PROLONG FILLING TIME
  • MOULD LUCKING—ADJUDGE PRESSURE
  • INSUFFICIENT AGING—PROLONG AGING TIME
  • OVER EXPANDED BEADS—CONTROL DENISTY

SWELLING OR DEFORM

  • INSUFFICIENT AGING—PROLONG AGING
  • OVER EXPANDED BEADS—CONTROL DENSITY
  • UNEVEN HEATING—CHECK HEATING SYSTEM
  • UNEVEN OR INSUFFICIENT COOLING—CHECK COOLING SYSTEM, IMPROVE COOLING
  • LOW TEMPERATURE AMBIENT—USE DRYING ROOM

DIFFERENT WEIGHT

  • UNEVEN PRE-EXPANSION—CONTROL PRE-EXPANSION PROCESS
  • MIXED LOT MATERIAL—CONFIRM MATERIAL
  • WIDE BEADS SIZE DISTRIBUTION—CHECK MATERIAL

Q&A