The invention relates to the technical field of
rust removal equipment and
rust removal methods, and particularly discloses a high-pressure spray gun
rust removal device and a rust removal method using the same. The method comprises the following steps that a high-pressure spray gun, a water pump and a
booster pump are connected well; the
booster pump is supercharged to 30 MPa, fine sand is prepared, and is sucked into the spray gun at the front end of high-pressure spray gun through negative pressure formed by the
water flow to form water sand to be sprayed out; the high-energy water sand jetflow is utilized to
impact and wear down a to-be-cleaned
metal surface, the
corrosion layer, the scale formation layer and other multi-position
layers on the
metal surface are distributed in a porousmode, once the scale formation layer is permeated, the high-pressure water sand
jet flow is inserted into the portion between the scale formation layer and the
metal base material in a
wedge shape, when the
impact energy of the
jet flow is larger than the adhesion limit strength of the scale formation layer and the base material, the
corrosion layer and the scale formation layer can be removed. The high-pressure spray gun rust removal device and the rust removal method using the same have the advantages that the high-pressure
water jet flow is good in safety adaptability, and can be applied into flammable and explosive places, rust removal by the high-pressure
water jet flow is high in safety performance and free of physical damage to operators, any life influence on surrounding people isavoided in the rust removal process.