Summary of the invention
The objective of the invention is to propose a kind of technical scheme of hard high-wearing feature ferroalloy materials, reduced the use of noble metal and rare earth by the technical program, produce and adopt many and low these precious metals of element substitution and the rare earth of price of content, realized equally the iron alloy of hard high-wearing feature.
The present invention is achieved by the following technical solutions:
A kind of hard high-wearing feature ferroalloy materials, its composition includes by weight percentage, the titanium of the aluminium of the molybdenum of the manganese of the carbon of 0.8-1.2%, the silicon of 0.6-0.65%, 1.1-1.3%, the chromium of 1.4-1.6%, 0.1-0.2%, the nickel of 0.05-0.1%, 0.8-1.2%, the copper of 0.3-0.5%, 0.02-0.03%, the vanadium of 0.03-0.06%, the cerium of 0.0005-0.001%, the boron of 0.002-0.003%, the cobalt of 0.03-0.05%, surplus is iron and inevitable impurity.
Described titanium is to add in the ferro-titanium mode.
Described nickel and cobalt are to add in the permivar mode.
Described cerium is that the cerium-iron alloy mode that contains 15% weight percent adds.
Described vanadium is to add in the ferro-vanadium mode.
Described preparation method is:
Batching, include by weight percentage, the titanium of the aluminium of the molybdenum of the manganese of the carbon of 0.8-1.2%, the silicon of 0.6-0.65%, 1.1-1.3%, the chromium of 1.4-1.6%, 0.1-0.2%, the nickel of 0.05-0.1%, 0.8-1.2%, the copper of 0.3-0.5%, 0.02-0.03%, the vanadium of 0.03-0.06%, the cerium of 0.0005-0.001%, the boron of 0.002-0.003%, the cobalt of 0.03-0.05%, surplus is that iron and inevitable impurity are prepared burden;
To at first put into smelting furnace through the iron in the above-mentioned composition that calculates, silicon, manganese melts, then add successively chromium, molybdenum, permivar, ferro-titanium, boron, copper, ferro-vanadium, cerium-iron alloy, and add aluminium after being warmed up to 1250-1350 ℃, be incubated 1-2 hour;
The aluminium alloy that obtains is cast under 1100-1150 ℃, carry out anneal after being cooled to 300-350 ℃; Product after the casting is placed 870-890 ℃ annealing furnace, be incubated 3-5 hour and come out of the stove, adopt air cooling, cooling rate is no more than 1.2 ℃/minute;
Quench treatment places the quenching furnance of 930-950, is incubated and carries out hardening liquid constant temperature quench treatment after 2 hours, and temperature is carried out temper during to 180-200 ℃;
Temper is insulation naturally cooling after 2.5 hours in 250 ± 10 ℃ the tempering stove in temperature.
The hardening liquid of described quench treatment is the water-based hardening liquid.
Hardening liquid maintains the temperature between the 130-150 when quenching.
Described quenching divides two stages, and first stage is isothermal quenching, and quenching velocity is 15-20/ minute; Adopt subordinate phase to quench when drop in temperature arrives 600-650 ℃, quenching velocity is 3-5 ℃/second.
The beneficial effect that the present invention compares with prior art is:
Reduce the use of noble metal and rare earth by the technical program, produced and adopt many and low these precious metals of element substitution and the rare earth of price of content, realized equally the iron alloy of hard high-wearing feature.
Embodiment
Below describe technical scheme of the present invention in detail by specific embodiment, should be understood that following embodiment only can be used for explain the present invention and can not be interpreted as is limitation of the present invention.
A kind of hard high-wearing feature ferroalloy materials, its composition includes by weight percentage, the titanium of the aluminium of the molybdenum of the manganese of the carbon of 0.8-1.2%, the silicon of 0.6-0.65%, 1.1-1.3%, the chromium of 1.4-1.6%, 0.1-0.2%, the nickel of 0.05-0.1%, 0.8-1.2%, the copper of 0.3-0.5%, 0.02-0.03%, the vanadium of 0.03-0.06%, the cerium of 0.0005-0.001%, the boron of 0.002-0.003%, the cobalt of 0.03-0.05%, surplus is iron and inevitable impurity.
Described titanium is to add in the ferro-titanium mode.
Described nickel and cobalt are to add in the permivar mode.
Described cerium is that the cerium-iron alloy mode that contains 15% weight percent adds.
Described vanadium is to add in the ferro-vanadium mode.
Described preparation method is:
Batching, include by weight percentage, the titanium of the aluminium of the molybdenum of the manganese of the carbon of 0.8-1.2%, the silicon of 0.6-0.65%, 1.1-1.3%, the chromium of 1.4-1.6%, 0.1-0.2%, the nickel of 0.05-0.1%, 0.8-1.2%, the copper of 0.3-0.5%, 0.02-0.03%, the vanadium of 0.03-0.06%, the cerium of 0.0005-0.001%, the boron of 0.002-0.003%, the cobalt of 0.03-0.05%, surplus is that iron and inevitable impurity are prepared burden;
To at first put into smelting furnace through the iron in the above-mentioned composition that calculates, silicon, manganese melts, then add successively chromium, molybdenum, permivar, ferro-titanium, boron, copper, ferro-vanadium, cerium-iron alloy, and add aluminium after being warmed up to 1250-1350 ℃, be incubated 1-2 hour;
The aluminium alloy that obtains is cast under 1100-1150 ℃, carry out anneal after being cooled to 300-350 ℃; Product after the casting is placed 870-890 ℃ annealing furnace, be incubated 3-5 hour and come out of the stove, adopt air cooling, cooling rate is no more than 1.2 ℃/minute;
Quench treatment places the quenching furnance of 930-950, is incubated and carries out hardening liquid constant temperature quench treatment after 2 hours, and temperature is carried out temper during to 180-200 ℃;
Temper is insulation naturally cooling after 2.5 hours in 250 ± 10 ℃ the tempering stove in temperature.
The hardening liquid of described quench treatment is the water-based hardening liquid.
Hardening liquid maintains the temperature between the 130-150 when quenching.
Described quenching divides two stages, and first stage is isothermal quenching, and quenching velocity is 15-20/ minute; Adopt subordinate phase to quench when drop in temperature arrives 600-650 ℃, quenching velocity is 3-5 ℃/second.
Embodiment 1
A kind of hard high-wearing feature ferroalloy materials, its composition includes by weight percentage, 0.8% carbon, 0.6% silicon, 1.1% manganese, 1.4% chromium, 0.1% molybdenum, 0.05% nickel, 0.8% aluminium, 0.3% copper, 0.02% titanium, 0.03% vanadium, 0.0005% cerium, 0.002% boron, 0.03% cobalt, surplus is iron and inevitable impurity.
Described preparation method is:
Batching, include by weight percentage, 0.8% carbon, 0.6% silicon, 1.1% manganese, 1.4% chromium, 0.1% molybdenum, 0.05% nickel, 0.8% aluminium, 0.3% copper, 0.02% titanium, 0.03% vanadium, 0.0005% cerium, 0.002% boron, 0.03% cobalt, surplus is that iron and inevitable impurity are prepared burden;
To at first put into smelting furnace through the iron in the above-mentioned composition that calculates, silicon, manganese melts, then add successively chromium, molybdenum, permivar, ferro-titanium, boron, copper, ferro-vanadium, cerium-iron alloy, and add aluminium after being warmed up to 1250-1350 ℃, be incubated 2 hours;
The aluminium alloy that obtains is cast under 1100-1150 ℃, carry out anneal after being cooled to 300-350 ℃; Product after the casting is placed 870-890 ℃ annealing furnace, be incubated 3 hours and come out of the stove, adopt air cooling, cooling rate is no more than 1.2 ℃/minute;
Quench treatment places the quenching furnance of 930-950, is incubated that the use hardening liquid carries out hardening liquid constant temperature quench treatment after 2 hours, and hardening liquid maintains the temperature between the 130-150 when quenching, and quenching temperature is carried out temper during to 180-200 ℃; Described quenching divides two stages, and first stage is isothermal quenching, and quenching velocity is 15-20/ minute; Adopt subordinate phase to quench when drop in temperature arrives 600-650 ℃, quenching velocity is 3-5 ℃/second;
Temper is insulation naturally cooling after 2.5 hours in 250 ± 10 ℃ the tempering stove in temperature.
Embodiment 2
A kind of hard high-wearing feature ferroalloy materials, its composition includes by weight percentage, 1.2% carbon, 0.65% silicon, 1.3% manganese, 1.6% chromium, 0.2% molybdenum, 0.1% nickel, 1.2% aluminium, 0.5% copper, 0.03% titanium, 0.06% vanadium, 0.001% cerium, 0.003% boron, 0.05% cobalt, surplus is iron and inevitable impurity.
Described preparation method is:
Batching, include by weight percentage, 1.2% carbon, 0.65% silicon, 1.3% manganese, 1.6% chromium, 0.2% molybdenum, 0.1% nickel, 1.2% aluminium, 0.5% copper, 0.03% titanium, 0.06% vanadium, 0.001% cerium, 0.003% boron, 0.05% cobalt, surplus is that iron and inevitable impurity are prepared burden;
To at first put into smelting furnace through the iron in the above-mentioned composition that calculates, silicon, manganese melts, then add successively chromium, molybdenum, permivar, ferro-titanium, boron, copper, ferro-vanadium, cerium-iron alloy, and add aluminium after being warmed up to 1250-1350 ℃, be incubated 1.5 hours;
The aluminium alloy that obtains is cast under 1100-1150 ℃, carry out anneal after being cooled to 300-350 ℃; Product after the casting is placed 870-890 ℃ annealing furnace, be incubated 3.5 hours and come out of the stove, adopt air cooling, cooling rate is no more than 1.2 ℃/minute;
Quench treatment places the quenching furnance of 930-950, is incubated that the use hardening liquid carries out hardening liquid constant temperature quench treatment after 2 hours, and hardening liquid maintains the temperature between the 130-150 when quenching, and quenching temperature is carried out temper during to 180-200 ℃; Described quenching divides two stages, and first stage is isothermal quenching, and quenching velocity is 15-20/ minute; Adopt subordinate phase to quench when drop in temperature arrives 600-650 ℃, quenching velocity is 3-5 ℃/second;
Temper is insulation naturally cooling after 2.5 hours in 250 ± 10 ℃ the tempering stove in temperature.
Embodiment 3
A kind of hard high-wearing feature ferroalloy materials, its composition includes by weight percentage, 1.0% carbon, 0.6% silicon, 1.2% manganese, 1.5% chromium, 0.15% molybdenum, 0.08% nickel, 1.0% aluminium, 0.4% copper, 0.025% titanium, 0.04% vanadium, 0.0008% cerium, 0.003% boron, 0.04% cobalt, surplus is iron and inevitable impurity.
Described preparation method is:
Batching, include by weight percentage, 1.0% carbon, 0.6% silicon, 1.2% manganese, 1.5% chromium, 0.15% molybdenum, 0.08% nickel, 1.0% aluminium, 0.4% copper, 0.025% titanium, 0.04% vanadium, 0.0008% cerium, 0.003% boron, 0.04% cobalt, surplus is that iron and inevitable impurity are prepared burden;
To at first put into smelting furnace through the iron in the above-mentioned composition that calculates, silicon, manganese melts, then add successively chromium, molybdenum, permivar, ferro-titanium, boron, copper, ferro-vanadium, cerium-iron alloy, and add aluminium after being warmed up to 1250-1350 ℃, be incubated 1.5 hours;
The aluminium alloy that obtains is cast under 1100-1150 ℃, carry out anneal after being cooled to 300-350 ℃; Product after the casting is placed 870-890 ℃ annealing furnace, be incubated 3.5 hours and come out of the stove, adopt air cooling, cooling rate is no more than 1.2 ℃/minute;
Quench treatment places the quenching furnance of 930-950, is incubated that the use hardening liquid carries out hardening liquid constant temperature quench treatment after 2 hours, and hardening liquid maintains the temperature between the 130-150 when quenching, and quenching temperature is carried out temper during to 180-200 ℃; Described quenching divides two stages, and first stage is isothermal quenching, and quenching velocity is 15-20/ minute; Adopt subordinate phase to quench when drop in temperature arrives 600-650 ℃, quenching velocity is 3-5 ℃/second;
Temper is insulation naturally cooling after 2.5 hours in 250 ± 10 ℃ the tempering stove in temperature.
By the iron alloy that above technical scheme is produced, its tensile strength surpasses 2000MPa; Yield strength reaches 1500-1800MPa; Hardness is greater than 95-102HRC.