Fin evaporator assembly for refrigerator

Raw material

(1)     Al pipe (O.D8 -- O.D10) * (t 0.7 -- t 1.0)

(2)     Copper pipe: (O.D 6 -- O.D 9.52) * (t 0.35 -- t 0.5)

(3)     Steel pipe: (O.D 6 -- O.D 8) * t 0.7

(4)     Fin: Al foil, thickness is 0.13 -- 0.25

Structure

  A. Draw-expanded type  B. Insert type  C. Side imbedded type (or water-expansion type)

D. Machine-expanded type

  E. Spiral-finned type

Technical Ability

1)       Fin specification for A type: L60*W27, L77*W27, holes distance 25mm

2)       Fin specification for B type: Width 50mm or 60mm, holes array as 11*19.05 (22 equilateral triangle shape)

3)       Fin specification for D type: O.D9.52 copper tube, holes distance 25mm*25mm (square shape), fin pitch:4.2mm

Performance

1)       Surface: Anodic oxidization or dip coating to prevent the corrosion.

2)       Inner cleanness can meet the requirement of R134a & CFC cooling system.

3)       Can satisfy the cooling capability requirements.

Notes: Aslant insert type and spiral evaporator comparatively has the largest heat exchange area and enhances the heat exchange performance.

Performance

3 million sets per year (10000 sets per day)

Residual moisture

≤20mg/m2

Residual impurity

≤30mg/m2

Residual mineral oil

≤7mg/m2

Residual chlorine

≤0.3 mg/m2

Residual paraffin

≤0.2 mg/m2

Hardness of coating

≥2H

Impact of coating

50cmkg/cm impact, no crack

Adhesion of coating

≥two grade

Flexibility of coating

Around R=3D bend 180°, no crack or no fall off

Color tolerance of powderpainting

E≤1.5