4.3.6 Main motor: 7.5kW AC motor.
The governor adopts Shenzhen SINEE frequency conversion series speed
regulation system, which has the advantages of energy saving and stability.
4.3.7 Screw material: new No. 3
4.3.8 Barrel material: new No. 3
4.3.9 Material characteristics: a
kind of metal material that can work for a long time under high temperature
above 600 ℃ and certain stress; It has high
high temperature strength, good oxidation and corrosion resistance, good
fatigue performance, fracture toughness and other comprehensive properties.
Heating and cooling system:
4.3.10 The temperature controller
adopts the latest generation of intelligent electronic display calculus
temperature controller, the temperature can be automatically adjusted between
0-600 ℃, and the temperature control
accuracy is ± 2 ℃
4.3.11Number of temperature control
sections: one head section, one head lock section, four barrel sections, cast
copper heating ring and four DF series axial cooling fans operate
alternately; The fuselage is electrically heated, and the cast copper heating
ring has good thermal insulation performance.
4.3.12The head adopts Haff
clamping, which is convenient to operate
4.3.13Gear box: all gears are
quenched and tempered by 40Cr, the tooth surface is quenched and tempered by
high frequency, the surface hardness is hrc50-55, the shaft is quenched and
tempered by 45# steel, the box material is cast iron, the gear is grinded by helical
tooth surface, the gearbox is connected with screw by spline, and the one-way
roller thrust bearing