Technical description:

Extruder:

 Screw:

A.Material:38CrMoALA.

B.Nitriding surface treatment.

C.Hardness≥HRC62,Nitrogen depth≥0.55mm

D.Structure:

a. The screw is bored structure for temperature control.

b.The rotation of the threaded rotary joint is in the same direction of the screw rotation.

c.The screw is inspected by 10kg/cm² water pressure for more than 1 hour, ensure no leakage.

d.Screw head size standards by enterprisesd

Barrel and bushing:

A.Barrel

a. pin type structure, axial drilling cooling

b. Number of pins: 10 rows, number of pins per row: 8 pins, material: 40Cr quenching

BBushing:

a.Material:38CrMoALA:

b..Surface is nitrided treatment; th

c.Hardness≥HRC66,nitriding depth≥0.55mm

Feeding rollers: the structure owns National patent, patent no.: ZL 2007 2 0193084.0

A.Material:38CrMoALA, roll surface is nitrided, hardness≥HRC62,nitriding depth≥0.5mm

B.structure:

a. Internally circulated water, can be connected to the rotary joint:

b uses a fully enclosed structure.

c. Feed roller gear is made of 20CrMoTi material, surface charcoal treatment, carburizing

Both depths are 1.5mm

d. The feeding roller is driven by the output shaft of the reducer through the gear, and the speed ratio gear has sufficient strength and wear resistance.

e. The speed ratio gear is greased, and the feed roller bearing is greased.