Over 90%* Base Metal Protection Without Compromise on Scale Removal Rate
Mill scale is made up of iron oxides that start to form during the pre-heating and rough mill process, building up as the steel passes through the finishing train of the hot mill, and during the coiling and cooling of the coil. Acid pickling is an essential step in steel production to chemically remove this scale, but the process must be controlled and optimized to prevent over-pickling and achieve the desired surface quality without loss of productivity.
Quaker Houghton provides a comprehensive range of acid inhibitors for use with hydrochloric, sulfuric, hydrofluoric, or nitric acid to optimize your pickling process.
The benefits:
*Under common pickling conditions.
Acid Pickling Process Additives
Maintaining Line Speeds and Surface Quality for Difficult-to-Descale Materials
Steels types such as advanced high strength steel (AHSS), stainless and interstitial-free, as well as silicon steel produce thicker, less soluble scale, presenting a greater challenge for scale removal.
QH EVERBLOCK™ A 8905 is an acid accelerator that speeds up scale removal on difficult-to-descale alloys.
QH EVERBLOCK™ A 3600 is an acid accelerator/inhibitor combination product, recommended for use in pickling tanks where both carbon steel and difficult-to-descale steels are processed.