Every year, a number of editions are returned to rework or rework because of corrosion, some for the quality of the edition, and some to be strengthened in the use of storage. The thickness of the chromium layer and the number of micro cracks in the chromium layer determine the internal cause of corrosion resistance of the plate during the manufacture of the roll. (such as local thickness, with chrome, platinum anode for conductive, chromium plating layer is uniform, with the ratio of lead tin anode lead version is not uniform, on the corrosion resistance, the specific reasons for chromium layer can look after the company cited the pulse extension detail) roll used in the process of external factors. In order to ensure the quality of printing and prolong the life of the plate, attention should be paid to the following:

The corrosion of the micro cell reaction is under 100 times the magnifying mirror.

1, please clean the plate anticorrosion oil before use and check whether there are any injuries, scratches and other problems.

2, usually the plate layout of the plate making company has been processed by special equipment. There is no special case before processing. Do not deal with it again. If you want to use the 1000# sandpaper to polish the plate roller, do not touch and draw with the hard and sharp objects.

3, when used, special scrapers with plate rollers must not be replaced by other metal sheets. Scrapers and plates should be kept at proper angle and pressure according to the specific printing conditions.

4, after printing, the printing ink of the page should be cleaned immediately to prevent the residual ink from drying in the pit. Some manufacturers are not clean after use. Ink is placed on one side, which is easy to block. It will also cause corrosion due to the equal residue of solvents in the ink.

5. Do not touch and carry plate rolls with bare hands to prevent oxidation and scratching, especially in summer to prevent sweat splashing on the page. After corrosion, it does not hurt the network. It can be retreated and reused. But if it hurts, it has to be re - plated and re - engraved, increasing the cost and time.

6, summer temperatures are high, storage layout must be cleaned and coated with anticorrosive oil (with 7# oil or sewing machine oil or special antirust oil), with a clean plastic film, blanket from inside to outside wrap, placed in ventilated, dry temperature (0-30 DEG C, and the relative humidity is less than 65% in the environment, and away from the acid and alkali corrosive substances.

Domestic antirust oils began to appear in the 60s of last century. The GB4879-1985 "rust proof packaging" standard was formulated by Wuhan Institute of material protection, and the types and indicators of domestic antirust oils were listed.

In the past twenty years, the development of antirust oil has been rapid, and a variety of new products have come out every year. Intaglio can be used for: thin layer antirust oil: RPA, GF type solvent thin layer antirust oil. It is applied in various production processes of most enterprises. It is easy to be coated, light and bright, solvent evaporation is less, and consumption is saved, which is less than 1/3 of thick rust proof oil. HH932 dehydration antirust oil can ensure that it doesn't rust within ten months. JN-2 antirust oil and thin layer antirust oil can be used for rust prevention between indoor processes, and it can also be used for packaging, sealing and rust prevention.