Wrought iron railings and other steel products have always been the most worrying and helpless to customers, corrosion and rust, weather resistance also let me, the processing industry is very troubled. The earliest wrought-iron railings were hand-rust-removed and painted after welding and were rust-free after one and a half years of loading. With the continuous improvement of user requirements, the grass-roots processing began to use pickling phosphating, pickling galvanizing , and surface coating or Spray paint. The period of antisepsis of iron parts has been significantly improved, but these process technologies have their own drawbacks. If they are improperly handled during operation, it is easy to leave residual acid left on the inner wall of the workpiece to cause acid corrosion on the inner wall of the steel pipe. Electroplating is not uniform or pickling is not clean, galvanized film is too thin and other defects, ultimately failing to achieve the desired anti-corrosion effect.
My company is responsible for performance, responsible for the attitude of the customer at any cost to introduce new spray equipment (currently precedent in Henan) can be sprayed zinc, copper, aluminum and other metals . The rust removal from the base layer is changed to large-scale sand blasting. This set of process can increase the antiseptic service life of iron parts to more than 15 years. First, there is no residual acid corrosion in the base sand blasting, and the sprayed zinc layer has a better density and thickness than hot dip galvanizing. It is known that the hot dip galvanized iron art (without topcoat coating conditions) has a corrosion resistance life of 15 years or so. After the product is sprayed with zinc, the exterior is painted again or sprayed with anti-corrosion service life. The conservative life is more than 18 years.
My company is responsible for performance, responsible for the attitude of the customer at any cost to introduce new spray equipment (currently precedent in Henan) can be sprayed zinc, copper, aluminum and other metals . The rust removal from the base layer is changed to large-scale sand blasting. This set of process can increase the antiseptic service life of iron parts to more than 15 years. First, there is no residual acid corrosion in the base sand blasting, and the sprayed zinc layer has a better density and thickness than hot dip galvanizing. It is known that the hot dip galvanized iron art (without topcoat coating conditions) has a corrosion resistance life of 15 years or so. After the product is sprayed with zinc, the exterior is painted again or sprayed with anti-corrosion service life. The conservative life is more than 18 years.