Hot roll for rolling titanium plate and manufacturing method of hot roll

Abstract

The invention discloses a hot roll for rolling a titanium plate, and a manufacturing method of the hot roll. The hot roll comprises the following chemical constituents in percentage by weight: 0.30-0.50% of C, 0.60-2.00% of Si, 0.20-1.00% of Mn, 4.50-6.00% of Cr, 0.05-0.65% of Ni, 1.00-2.00% of Mo, 0.50-1.50% of V, less than or equal to 0.025% of P, less than or equal to 0.020% of S, and the balance of Fe and unavoidable impurities. The manufacturing method of the hot roll for rolling the titanium plate comprises the processing steps of steel ingot refining, roll blank forging, thermal refining, induction quenching treatment, tempering treatment and the like. Compared with the traditional hot roll made of a Cr3 material, the hot roll is good in abrasive resistance, corrosion resistance and thermal crack resistance, and the service life of the hot roll can be prolonged by above 70%.

Description

technical field

[0001] The invention relates to a roll and a manufacturing method thereof, in particular to a hot rolling roll for rolling titanium plates and a manufacturing method thereof. Background technique

[0002] Titanium has a series of excellent properties and is widely used in aerospace, aviation, chemical industry, petroleum, metallurgy, light industry, electric power, seawater desalination, ships and daily life appliances and other fields. Titanium plate has the characteristics of high strength and low density, good mechanical properties, good toughness and corrosion resistance. With the rapid development of my country's economy, the demand for titanium and its alloys is increasing, and the requirements for the surface quality and dimensional accuracy of titanium plates are also getting higher and higher. Therefore, the performance requirements for hot rolls used for rolling titanium plates are also increasing. Higher and higher.

[0003] At present, the hot ro...