Two-component anti-seizure agent for hot metal working process, and method of manufacturing seamless pipe using thereof

A method of manufacturing seamless pipe using piercing-rolling mill having disk-roll type guide shoes, the method comprising the steps of:

• a first process for applying, in a process of piercing-rolling, a first aqueous solution to a circumferential surface of said disk-roll type guide shoes, and
• a second process for applying a second aqueous solution to said circumferential surface of said disk-roll type guide shoes to form a water-proof coating on said circumferential surface in the process of piercing-rolling by gelling of the first aqueous solution,
• wherein said first aqueous solution contains 10˜30 mass % of sodium silicate equivalent to anhydride to total mass of said first aqueous solution as 100 mass %, and
• said second aqueous solution contains at least one kind of component(s) selected from a group consisting of acetic acid, oxalic acid, adipic acid, tartaric acid, hydrochloric acid, phosphoric acid, boric acid, monoethanol amine, N-methyl diethanol amine, methyl alcohol, iron chloride, magnesium chloride, and basic aluminum chloride, and further wherein
• said first aqueous solution is substantially free from said acetic acid, oxalic acid, adipic acid, tartaric acid, hydrochloric acid, phosphoric acid, boric acid, monoethanol amine, N-methyl diethanol amine, methyl alcohol, iron chloride, magnesium chloride, and basic aluminum chloride included in said second aqueous solution,
• said second aqueous solution is substantially free from said sodium silicate included in said first aqueous solution and substantially free from organic acids of which total acid number is 500 mgKOH/g or less, and
• a total concentration of said component(s) in said second aqueous solution is 10-72 mass % based on a total mass of said second solution.