Raw materials:
1) Evaporator tube: Volume welded steel tube ¢ 8 × 0.71
2) cooling wire: low carbon steel ¢ 1.2 ~ ¢ 1.6mm
3) Bracket: cold rolled plate t = 0.6 ~ 0.9mm   

Main process:
Elbow pipe: wire tube welding, monolithic assembly, assembly welding, leak detection, cleaning, surface coating, inspection, packaging 

technical skills:

Wire spacing ≥ 5mm, according to customer's specific drawings, sample production requirements, and to assist customers in product design, manufacture various models of specifications Refrigerator tube evaporator 

Product performance:

1) Products through electrophoresis or dusting, to meet the anti-corrosion requirements of the product use process
2) Internal cleanliness meets R134a or CFC refrigeration system requirements
3) to meet the requirements of the design of the refrigerator freezer performance 

Technical Parameters:
R134a refrigeration system standard quality and performance standards for pipe coating
Straightness ≤0.004L
Verticality ≤ 0.0047B2
Residual moisture ≤ 5 ㎎ / 100cm ³
Residual impurities ≤ 10㎎ / 100cm³
Residual mineral oil ≤ 100mg / 100cm³
Residual chloride ≤ 5vloppm
Residual paraffin ≤ 3mg / ㎡

Coating thickness:
1) Cathodic electrophoresis paint film thickness 15 ~ 20μm
2) Silk tube evaporator powder coating thickness 60 ~ 300μm
Coating hardness: ≥ 2H
Coating impact resistance: 50cmg.kg/cm impact no cracking
Coating adhesion: ≥ 2 levels
Coating flexibility: bending R = 3D, bending angle of 180, the coating no cracking, falling off
Powder coating color: △ E ≤ 1.5
Coating corrosion (salt spray test GB2423):
1) Cathode electrophoresis ≥72h; 2) Powder coating ≥200h