Anhui Blackma Heavy Industrial Machinery Co., LTD.

For The Corrosion Of Spiral Duct, We Understand Its Harm And The Cause?

If a spiral duct is corroded, then what is the reason? What's the harm? Faced with these questions, I will analyze and explain it hereinafter. Thus you can learn and firmly grasp the content, and then understand and use the duct.

If a duct is corroded, the following phenomenon may appear on its surface:
First, there may be some defects on the surface of the duct, such as snag and sundries.  Second, the surface of the weld may be black or presents yellow spots or piebaldness.  Third, part if the duct presents rust.
In these three cases, the degree of corrosion is increasingly serious. If the problem occurs, it will reduce its corrosion resistance and shorten its service life. For the ventilation system, it will reduce its severity, so its harm is not to be underestimated.

The main reasons for the corrosion of the duct are as follows:
the materials used by the duct are not properly prepared or processed.  in the process of manufacturing, the duct is corroded, but it is not processed in time.  the welding method of the duct is not selected correctly, that is, the welding method is improper.  After the duct is welded, it is not cleaned in time.
Related News
  • Application of Square Duct Machine

    Application of Square Duct Machine

    July 25, 2019Stainless steel square duct is a hollow strip of steel, because the section is square, so it is called square duct. A large number of pipelines are used to transport fluids, such as petroleum, natural...view
  • Cautions in the Use of Electric Shearing Machine

    Cautions in the Use of Electric Shearing Machine

    April 11, 2019An electric shearing machine is a machine that cuts sheets in a reciprocating linear motion between one blade and another. By means of moving the upper blade and fixed lower blade, reasonable blade cl...view
  • What is the Duct Production Line

    What is the Duct Production Line

    December 4, 2019The air duct production line can be defined as: the whole process of air duct forming is completed independently by a duct manufacturing machine.view
  • The Advantages of Auto Duct Line

    The Advantages of Auto Duct Line

    July 30, 2018We all know that the production and processing of air duct need to be done through the auto duct processing equipment. The auto duct line is widely used now, it is a kind of integrated and systematic ...view
  • New Riveting Technology of Riveting Machine Manufacturers

    New Riveting Technology of Riveting Machine Manufacturers

    July 30, 2018The press ring of the manufacturer of the riveting machine first presses down the riveting material by a downward movement, in order to prevent the material flowing into the die under the force of the...view
  • Harm of High Temperature of Hydraulic Riveting Machine

    Harm of High Temperature of Hydraulic Riveting Machine

    June 27, 2019Hydraulic riveting machine is a processing process that uses stamping machine equipment and special connecting to strengthen high pressure in an instant. According to the cold extrusion deformation of...view