The invention relates to a high temperature anti-oxidation
coating capable of reducing the oxidation burning loss of stainless steel in a
heating furnace. The high temperature anti-oxidation
coating is characterized in that the
coating comprises
solid materials consisting of 46 to 92 percent of basic filler and 8 to 54 percent of composite binder, and water which is 0.5 to 20 folds of the weight of the
solid materials. The basic filler comprises several chemical components selected from
silicon dioxide,
alumina, magnesia,
calcium oxide and boric
oxide. The composite binder consists of several components selected from
sodium silicate,
lithium metasilicate and
aluminum phosphate. The coating can be painted at the normal temperature or sprayed onto the surface of a stainless steel billet from the
room temperature to 1,000 DEG C. The coating can form a protective coat at the high temperature, thereby greatly reducing the high temperature oxidation burning loss of stainless steel at 1,400 DEG C, and reducing the unit area oxidation burning loss by more than 90 percent. After stainless steel is drawn out of the furnace, the
iron oxide scale can be fully stripped off under the actions of temperature reduction or
high pressure water; the amount of the produced
iron oxide scale is also obviously reduced; and the stainless steel surface quality is remarkably improved.