The ① process.
Is expected to open the machining → inspection → finished product → polishing → degreasing → medicine white → anodic oxidation → screen → drying → closed → go I ink →
② process description. Beach Flags Poles
a. Materials. Material directly elected semi-hard pure aluminum L2Y industry, requiring a smooth surface, no obvious clip gray, the calendering marks, deep etch points and scratches.
(b) polishing. Mechanical polishing with a soft cloth to round out the light, so that the aluminum surface was mirror-like.
(c) To the oil. To the oil is generally 35 ~
(d) Medicine white. The aim of medicine white aluminum surface shiny and soft, not bright, in order to meet the ergonomic requirements. Medicine white solution formula given below:
Sodium hydroxide 50 ~
Sodium carbonate 50 ~
Water to 1000ml.
Temperature of 70 ~
5 to 10 minutes.
Medicine white aluminum plate rinse, and then placed in dilute nitric acid solution and processing.
Sometimes in order to make the surface more white, aluminum stick some wet 200 mesh 95% calcium carbonate powder, drama in the drama board machine system can also be used to brush the stained wet calcium carbonate powder in the aluminum surface brushing , and then rinse with water board, then add the white liquid of the above-mentioned drugs, drug white handle.
e. Anodic oxidation. Anodic oxidation to generate a thickness of 10μm oxide layer in the surface of the aluminum, aluminum of drug flour not only protect from damage and, Custom Advertising Feather Flags more importantly, a thick layer of oxide film has a high adsorption capacity, can be printed on ink on firmly adsorbed on the oxide film of fine loose hole, flat graphic effects.
f. Screen . Custom Feather Flags Wholesale
260 through 320 purpose polyester plate is generally used, the rough edges too thin network lines of printed handwriting, often with a more pronounced "sawtooth", the dense network ink is not easy by text graphics could easily lead to incomplete. The screen ink of the water white oxide signs solvent has a strong dissolution, on the production of plates, the only sensitive adhesive or photographic film, censorship can only be used close up rubber.
Screen water white oxide signs of ink, generally have a room temperature curing and two heatset, room temperature curing type ink more. Produced a number of chromatography products, subject to the same color ink surface adhesion, and then the next color.