Heater Block Refurbish
- Heater refurbish business scope
- Heater frequent damage issues
- Film residue Appear
- Element Damage Appear
- Refurbish flowcharts
- Refurbish Procedure
- Machining measurements
- Element resistor measurement
- Element insulation resistor measurement
- Temperature measurement
Heater frequent damage issues
- Element open (∞ Ω)
- Element poor insulation with heater blocks
- Ceramic of element coating or leak
- Powder residue
- Heater Leaks
- Thickness /Stress fault
Film residue Appear
- Impact of process : Particle high and film quality effect abnormal.
- Case Solution : Removed residues in cutting.
surface film residue
Element Damage Appear
- Impact of process : arcing and element open (∞ Ω)
- Case Solution : change new element.
Refurbish flowcharts
Refurbish Procedure 1
- Remove the element、Hub、Welding plates and stands
- Element/Hub/Welding plates and stands component disassemble
Refurbish Procedure 2
- Heater block surface : CNC lather processes
- Fork and strap hole of strap Depth / Trench / Shape : CNC miller
processes
Refurbish Procedure 3
- Heater block back side surface : CNC lather processes
- Element/Hub/Stand Depth / Trench / Shape : CNC miller processes
Refurbish Procedure 4
- Install element and heater plate/Stopper /stand/hub welding
- Element : change new element
- Heater plate : change new heater plate
- Stopper/stand/hub : change new stopper/stand/hub
Machining Measurement
- Heater block surface roughness
- Fork and screw hole of strap depth / Trench / Shape
- Hub and heater block coaxial with spacing
- Hub and stand verticality with spacing
- Element and heater block gap
Element resistor measurement
- Inner element resistor measurement
- Outer element resistor measurement
Inner element
Outer element
Element insulation resistor measurement
- Inner element insulation resistor measurement
- Outer element insulation resistor measurement
Temperature measurement
