copper wire tube evaporator for refrigerator

Raw material

1) Rolling welded steel pipe: 8 ×0.7mm , with wall thickness 0.7mm.2) low carbon steel wire 1.3∼ 1.6mm.3) Bracket: Steel plate(SPCC) thickness: 0.6 ∼ 0.9mm.

Structure

Structure 1: evaporator for single temperature control system (Single-capillary evaporator)Structure 2: evaporator for double temperature control system (Double-capillary evaporator)Structure 3: evaporator for three way temperature control system (Three-capillary evaporator)

Key process

Straightening cutting, bending, welding wire, molding, assembly welding, leak testing, pre-treatment, electrophoresis, spraying, packing

Technical standards

Wire pitch: ≥ 5 , can produce according to the drawing or sample supplied by clients, also can help the clients design and produce different evaporators.

Performance

1 Surface treated with electrophoresis or powder painting to prevent the corrosion2 Inner cleanness can meet the requirements of R134a & CFC cooling system. 3 Can satisfy the cooling capability requirements.

Capacity

3.0million sets per year (5000 sets per day).

Linear measure

≤ 0.004L

Verticality

≤ 0.047B 2

Residual moisture

≤20 mg/m2

Residual impurity

≤ 30 mg/m2

Residual mineral oil

≤7 mg/m2

Residual chlorine

≤0.3 mg/m2

Residual paraffin

≤0.2 mg/m2

Coating thickness

  thickness of Anodic electrophoresis coating 18 ∼ 22 μ m;  thickness of cathodic electrophoresis coating 15 ∼ 20 μ m;  thickness of wire-tube evaporator powder coating:60 ∼ 300μ m

Hardness of coating

≥ 2H

Impact of coating

50mg/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 powder painting

E ≤ 1.5

Corrosion resistant(Salt spray GB2423)

  Anodic electrophoresis coating ≥24h;  Cathodic electrophoresis coating ≥72h;  Powder paining≥200h