CN105331904A - Preparation method of high-manganese low-chromium alloy wear-resisting ball - Google Patents
Preparation method of high-manganese low-chromium alloy wear-resisting ball Download PDFInfo
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Abstract
The invention provides a preparation method of a high-manganese low-chromium alloy wear-resisting ball. The preparation method comprises the steps that raw materials are firstly smelted to obtain alloy liquid, and modification is carried out on the alloy liquid; a covering agent is added to the surface of the alloy liquid obtained after modification, still standing is carried out, refining desulfuration and deoxygenation are carried out, and detection is carried out; the alloy liquid is poured, and a casting is obtained through casting forming and cleaning; and the casting is precooled, the precooled casting is placed in a NaNO2 saline solution for quenching treatment, tempering treatment is carried out after quenching is finished, and finally the finished high-carbon middle-chromium alloy wear-resisting ball is obtained after the casting is cooled to room temperature. According to the prepared high-manganese low-chromium alloy wear-resisting ball, tensile strength is improved by 0.7%, yield strength is improved by 6.1%, ductility is improved by 10.8%, impact toughness is improved by 17.9%, and hardness is improved by 0.3 of HRC.
Description
Technical field
The present invention relates to grinding machinery technical field, particularly relate to a kind of preparation method of high manganese and low chromium alloy wear-resisting ball.
Background technology
High manganese and low chromium alloy wear-resisting ball is widely used in the powder preparation of the industries such as cement building material, metal mine, coal slurry thermoelectricity, chemical engineering, ceramic coating, light industry papermaking, magneticsubstance and ultra-fine deep processing.It is high that high manganese and low chromium alloy wear-resisting ball has hardness, wears away low, good toughness, and fragmentation is few to be waited a little.
Chromium in wear-resistant ball can form carbide strongly, can crystal grain thinning, and refined carbides, improves the distribution of carbide, the intensity of abrading-ball, hardness is improved but impelling strength declines to some extent.
Manganese can increase the stability of carbide strongly, can improve intensity and hardness, and has the effect of desulfurization deoxygenation.But in the actual production of low chromium cast ball, too high manganese amount is by the formation of aggravation column crystal.Reduce plasticity and the impelling strength of abrading-ball.
Therefore, reasonably control the content of chromium and manganese, the impelling strength improving alloy wear-resisting ball while improving the intensity of alloy wear-resisting ball and hardness is currently available technology urgent problem.
Summary of the invention
For solving the technical problem existed in background technology, the present invention proposes a kind of preparation method of high manganese and low chromium alloy wear-resisting ball, the high manganese and low chromium alloy wear-resisting ball obtained by this preparation method, relative to high manganese and low chromium alloy wear-resisting ball in prior art, tensile strength improves 0.7%, and yield strength improves 6.1%, and unit elongation improves 10.8%, impelling strength improves 17.9%, and hardness improves HRC0.3.
The preparation method of a kind of high manganese and low chromium alloy wear-resisting ball that the present invention proposes, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.5 ~ 2.8%; Cr:1.5 ~ 2.5%; Mn:11.20-13.50%; Mo:0.3 ~ 0.4%; Ni:0.3 ~ 0.4%; Rare earth: 0.15 ~ 0.20%; V:0.15 ~ 0.30%; B:0.1-0.3%; Ti:0.01-0.10%; W:0.1-0.2%; Nb:0.2-0.3%; Ta:0.02-0.12%; P:0-0.08%; S:0-0.06%, surplus is iron and inevitable impurity;
S3, to pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheat 40-45min, insulation 2-3 hour, then in clear water, carry out precooling treatment, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 760-780 DEG C, the time of quench treatment is 4-7 minute, foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Preferably, the nanometer alterant in S1 is one or more combinations in TiN, SiC, TiC, WN, VN, AlN.
Preferably, the nanometer alterant in S1 is TiN.
Preferably, in S2, the raw materials by weight of insulating covering agent comprises: MgO:40-60%; CaO:10-30%; Na
2o:10-30%; Al
2o
3: 10-30%; SiO
2: 1-5%; CaF
2: 1-7%.
Preferably, the insulating covering agent in S2 comprises following component by weight percentage: MgO:42-58%; CaO:12-28%; Na
2o:12-28%; Al
2o
3: 12-28%; SiO
2: 2-4%; CaF
2: 2-6%.
Preferably, the insulating covering agent in S2 comprises following component by weight percentage: MgO:43%; CaO:13%; Na
2o:15%; Al
2o
3: 22%; SiO
2: 3%; CaF
2: 4%.
Preferably, the aluminium alloy in S2 comprises following component by weight percentage: C:2.55 ~ 2.75%; Cr:1.8 ~ 2.2%; Mn:11.50-13.20%; Mo:0.31 ~ 0.39%; Ni:0.32 ~ 0.38%; Rare earth: 0.16 ~ 0.19%; V:0.18 ~ 0.27%; B:0.12-0.28%; Ti:0.02-0.09%; W:0.11-0.19%; Nb:0.21-0.29%; Ta:0.04-0.10%; P:0.01-0.07%; S:0.01-0.05%, surplus is iron and inevitable impurity.
Preferably, in S2, aluminium alloy comprises following component by weight percentage: C can be 2.50%, 2.55%, 2.60%, 2.65%, 2.70%, 2.75%, 2.80%; Cr can be 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%; Mn can be 11.20%, 11.30%, 11.40%, 11.50%, 11.60%, 11.70%, 11.80%, 11.90%, 11.20%, 11.21%, 11.22%, 11.23%, 11.24%, 11.25%, 11.26%, 11.27%, 11.28%, 11.29%, 11.30%, 11.31%, 11.32%, 11.33%, 11.34%, 13.50%; Mo can be 0.30%, 0.31%, 0.32%, 0.33%, 0.34%, 0.35%, 0.36%, 0.37%, 0.38%, 0.39%, 0.40%; Ni can be 0.30%, 0.31%, 0.32%, 0.33%, 0.34%, 0.35%, 0.36%, 0.37%, 0.39%, 0.40%; Rare earth can be 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.20%; V can be 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.20%, 0.21%, 0.22%, 0.23%, 0.24%, 0.25%, 0.26%, 0.27%, 0.28%, 0.29%, 0.30%; B can be 0.10%, 0.12%, 0.14%, 0.16%, 0.18%, 0.20%, 0.22%, 0.24%, 0.26%, 0.28%, 0.3%; Ti can be 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.10%; W can be 0.10%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.20%; Nb can be 0.20%, 0.21%, 0.22%, 0.23%, 0.24%, 0.25%, 0.26%, 0.27%, 0.28%, 0.29%, 0.30%; Ta can be 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.10%, 0.11%, 0.12%; P can be 0.00%, 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%; S can be 0.00%, 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, and surplus is iron and inevitable impurity.
Preferably, the aluminium alloy in S2 comprises following component by weight percentage:
Preferably, the aluminium alloy in S2 comprises following component by weight percentage: C:2.60%; Cr:2.0%; Mn:12.30%; Mo:0.34%; Ni:0.35%; Rare earth: 0.17%; V:0.23%; B:0.20%; Ti:0.06%; W:0.15%; Nb:0.25%; Ta:0.07%; P:0.04%; S:0.03%, surplus is iron and inevitable impurity.
Preferably, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheat 40-45min, insulation 2-3 hour, then in clear water, carry out precooling treatment, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C.
Preferably, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 980-1020 DEG C of preheating 38-42min, reheat 41-44min, insulation 2.1-2.9 hour, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.1-3.9min, and the temperature of clear water is 38-41 DEG C.
Preferably, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 1000 DEG C of preheating 35-45min, reheat 43min, be incubated 2.5 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.5min, and the temperature of clear water is 39 DEG C.
Preferably, in S4, salt brine solution foundry goods after precooling treatment in S3 being put into NaNO2 carries out quench treatment, the temperature of quench treatment is 760-780 DEG C, the time of quench treatment is 4-7 minute, foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Preferably, salt brine solution foundry goods after precooling treatment in S3 being put into NaNO2 carries out quench treatment, the temperature of quench treatment is 765-775 DEG C, the time of quench treatment is 4.5-6.5 minute, foundry goods after quench treatment is warming up to 185-205 DEG C and carries out temper, the time of temper is 5.1-5.9 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Preferably, salt brine solution foundry goods after precooling treatment in S3 being put into NaNO2 carries out quench treatment, the temperature of quench treatment is 770 DEG C, the time of quench treatment is 5.5 minutes, foundry goods after quench treatment is warming up to 190 DEG C and carries out temper, the time of temper is 5.5 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
In the present invention, aluminium alloy after melting is carried out the Metamorphism treatment of nanometer alterant, the nanometer forming core formed in iron and steel liquid with nano-scale and high surface particle and nanometer alterant particle dispersion are evenly distributed on matrix, it has high rigidity, high-melting-point, high temperature resistant, the feature that size is little and dispersity is high, the core amounts of forming core is increased in crystallisation process, decrease grain-size, refinement crystal grain, dispersion hardening in the high surface of nanometer alterant and crystal grain thinning process, effectively raise hardness and the toughness of abrasion-proof steel ball, break the corresponding relation that abrasion-proof steel ball hardness in strengthening process improves inevitable toughness decline, contrast with high manganese and low chromium alloy wear-resisting ball of the prior art, as-heat-treated condition toughness improves 10-80%, grain refining can be made to some wear-resisting alloy steels, a crystal grains fine 1-2 rank, tensile strength improves 0.7%, yield strength improves 6.1%, unit elongation improves 10.8%, impelling strength improves 17.9%, hardness improves HRC0.3.
In the present invention, by adding MgO, CaO, Na
2o, Al
2o
3, SiO
2and CaF
2the insulating covering agent of composition carries out calmness process, makes the gas in aluminium alloy and inclusion floating, reaches the object of purification aluminium alloy, thus effectively reduce scrap rate.
In the present invention, after aluminium alloy cast molding, first carried out to foundry goods the preheated one-section time, and then heating and thermal insulation, put into clear water after insulation and carry out precooling treatment, adopt the short period of time precooling treatment before this quench treatment, effectively can improve the hardness of steel ball.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
Embodiment 1
A preparation method for high manganese and low chromium alloy wear-resisting ball, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.60%; Cr:2.0%; Mn:12.30%; Mo:0.34%; Ni:0.35%; Rare earth: 0.17%; V:0.23%; B:0.20%; Ti:0.06%; W:0.15%; Nb:0.25%; Ta:0.07%; P:0.04%; S:0.03%, surplus is iron and inevitable impurity;
S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 1000 DEG C of preheating 35-45min, reheat 43min, be incubated 2.5 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.5min, and the temperature of clear water is 39 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 770 DEG C, and the time of quench treatment is 5.5 minutes, the foundry goods after quench treatment is warming up to 190 DEG C and carries out temper, the time of temper is 5.5 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Nanometer alterant in S1 is TiN.
Insulating covering agent in S2 comprises following component by weight percentage: MgO:43%; CaO:13%; Na
2o:15%; Al
2o
3: 22%; SiO
2: 3%; CaF
2: 4%.
Embodiment 2
A preparation method for high manganese and low chromium alloy wear-resisting ball, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.5%; Cr:2.5%; Mn:11.20%; Mo:0.4%; Ni:0.3%; Rare earth: 0.20%; V:0.15%; B:0.3%; Ti:0.01%; W:0.2%; Nb:0.2%; Ta:0.12%; S:0.06%, surplus is iron and inevitable impurity;
S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 950 DEG C of preheating 45min, reheat 40min, be incubated 3 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3min, and the temperature of clear water is 42 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 760 DEG C, and the time of quench treatment is 7 minutes, the foundry goods after quench treatment is warming up to 180 DEG C and carries out temper, the time of temper is 6 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Nanometer alterant in S1 is the composition of TiN and SiC.
Insulating covering agent in S2 comprises following component by weight percentage: MgO:40%; CaO:30%; Na
2o:10%; Al
2o
3: 10%; SiO
2: 3%; CaF
2: 7%.
Embodiment 3
A preparation method for high manganese and low chromium alloy wear-resisting ball, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.8%; Cr:1.5%; Mn:13.50%; Mo:0.3%; Ni:0.4%; Rare earth: 0.15%; V:0.30%; B:0.1%; Ti:0.10%; W:0.1%; Nb:0.3%; Ta:0.02%; P:0.08%, surplus is iron and inevitable impurity;
S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 1050 DEG C of preheating 35min, reheat 45min, be incubated 2 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 4min, and the temperature of clear water is 37 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 780 DEG C, and the time of quench treatment is 4 minutes, the foundry goods after quench treatment is warming up to 210 DEG C and carries out temper, the time of temper is 5 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Nanometer alterant in S1 is the composition of TiN, SiC and TiC.
Insulating covering agent in S2 comprises following component by weight percentage: MgO:60%; CaO:10%; Na
2o:12%; Al
2o
3: 13%; SiO
2: 2%; CaF
2: 3%.
Embodiment 4
A preparation method for high manganese and low chromium alloy wear-resisting ball, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.55%; Cr:2.2%; Mn:11.50%; Mo:0.39%; Ni:0.32%; Rare earth: 0.19%; V:0.18%; B:0.28%; Ti:0.02%; W:0.19%; Nb:0.21%; Ta:0.10%; P:0.01%; S:0.05%, surplus is iron and inevitable impurity;
S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 980 DEG C of preheating 42min, reheat 41min, be incubated 2.9 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.1min, and the temperature of clear water is 41 DEG C;
S4, the salt brine solution foundry goods after precooling treatment in S3 being put into NaNO2 carry out quench treatment, the temperature of quench treatment is 765 DEG C, the time of quench treatment is 6.5 minutes, foundry goods after quench treatment is warming up to 185 DEG C and carries out temper, the time of temper is 5.9 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Nanometer alterant in S1 is the composition of TiN, SiC, TiC, WN and VN.
Insulating covering agent in S2 comprises following component by weight percentage: MgO:42%; CaO:28%; Na
2o:12%; Al
2o
3: 12%; SiO
2: 2%; CaF
2: 4%.
Embodiment 5
A preparation method for high manganese and low chromium alloy wear-resisting ball, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.75%; Cr:1.8%; Mn:13.20%; Mo:0.31%; Ni:0.38%; Rare earth: 0.16%; V:0.27%; B:0.12%; Ti:0.09%; W:0.11%; Nb:0.29%; Ta:0.04%; P:0.07%; S:0.01%, surplus is iron and inevitable impurity;
S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 980 DEG C of preheating 42min, reheat 41min, be incubated 2.9 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.1min, and the temperature of clear water is 41 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 765 DEG C, and the time of quench treatment is 6.5 minutes, the foundry goods after quench treatment is warming up to 185 DEG C and carries out temper, the time of temper is 5.9 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
Nanometer alterant in S1 is the composition of TiN, SiC, TiC, WN, VN and AlN.
Insulating covering agent in S2 comprises following component by weight percentage: MgO:58%; CaO:12%; Na
2o:12%; Al
2o
3: 12%; SiO
2: 4%; CaF
2: 2%.
A kind of high manganese and low chromium alloy wear-resisting ball described in embodiment 1-5 is carried out Performance Detection, and it is as shown in the table for the performance detection data obtained:
In the above-described embodiments, by being optimized the Composition Design of abrasion-proof steel ball and preparation technology, improve the over-all properties of abrasion-proof steel ball, and steel ball the is had advantage such as high abrasion, high strength, high rigidity and HI high impact be tough.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a preparation method for high manganese and low chromium alloy wear-resisting ball, is characterized in that, comprises the steps:
S1, by carbon dust, chromium ingot, manganese block, molybdenum ingot, nickel block, vanadium ingot, borax, antimony sand, tungsten block, niobium block, tantalum block, phosphorus powder and sulphur powder carry out melting, obtain aluminium alloy, utilize argon tanks winding-up argon gas, nanometer alterant even dispersion is distributed in aluminium alloy and carries out Metamorphism treatment;
S2, the aluminium alloy surface crossed through Metamorphism treatment in S1 add insulating covering agent, calm process, and refining desulfuration, deoxidation, detect, and aluminium alloy comprises following component by weight percentage: C:2.5 ~ 2.8%; Cr:1.5 ~ 2.5%; Mn:11.20-13.50%; Mo:0.3 ~ 0.4%; Ni:0.3 ~ 0.4%; Rare earth: 0.15 ~ 0.20%; V:0.15 ~ 0.30%; B:0.1-0.3%; Ti:0.01-0.10%; W:0.1-0.2%; Nb:0.2-0.3%; Ta:0.02-0.12%; P:0-0.08%; S:0-0.06%, surplus is iron and inevitable impurity;
S3, to pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheat 40-45min, insulation 2-3 hour, then in clear water, carry out precooling treatment, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C;
S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 760-780 DEG C, the time of quench treatment is 4-7 minute, foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
2. the preparation method of high manganese and low chromium alloy wear-resisting ball according to claim 1, is characterized in that, the nanometer alterant in S1 is one or more combinations in TiN, SiC, TiC, WN, VN, AlN.
3. the preparation method of high manganese and low chromium alloy wear-resisting ball according to claim 1 and 2, is characterized in that, the nanometer alterant in S1 is TiN.
4. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-3, is characterized in that, the insulating covering agent in S2 comprises following component by weight percentage: MgO:40-60%; CaO:10-30%; Na2O:10-30%; Al
2o
3: 10-30%; SiO
2: 1-5%; CaF
2: 1-7%.
5. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-4, is characterized in that, in S2, the raw materials by weight of insulating covering agent comprises: MgO:42-58%; CaO:12-28%; Na
2o:12-28%; Al
2o
3: 12-28%; SiO
2: 2-4%; CaF
2: 2-6%.
6. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-5, is characterized in that, the insulating covering agent in S2 comprises following component by weight percentage: MgO:43%; CaO:13%; Na
2o:15%; Al
2o
3: 22%; SiO
2: 3%; CaF
2: 4%.
7. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-6, is characterized in that, the aluminium alloy in S2 comprises following component by weight percentage: C:2.55 ~ 2.75%; Cr:1.8 ~ 2.2%; Mn:11.50-13.20%; Mo:0.31 ~ 0.39%; Ni:0.32 ~ 0.38%; Rare earth: 0.16 ~ 0.19%; V:0.18 ~ 0.27%; B:0.12-0.28%; Ti:0.02-0.09%; W:0.11-0.19%; Nb:0.21-0.29%; Ta:0.04-0.10%; P:0.01-0.07%; S:0.01-0.05%, surplus is iron and inevitable impurity.
8. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-7, is characterized in that, the aluminium alloy in S2 comprises following component by weight percentage: C:2.60%; Cr:2.0%; Mn:12.30%; Mo:0.34%; Ni:0.35%; Rare earth: 0.17%; V:0.23%; B:0.20%; Ti:0.06%; W:0.15%; Nb:0.25%; Ta:0.07%; P:0.04%; S:0.03%, surplus is iron and inevitable impurity.
9. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-8, is characterized in that, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtains foundry goods, by foundry goods at 950-1050 DEG C of preheating 35-45min, reheat 40-45min, insulation 2-3 hour, then carries out precooling treatment in clear water, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42 DEG C; Preferably, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 980-1020 DEG C of preheating 38-42min, reheat 41-44min, insulation 2.1-2.9 hour, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.1-3.9min, and the temperature of clear water is 38-41 DEG C; Preferably, in S3, pour into a mould obtaining aluminium alloy in S2, through casting, cleaning, obtain foundry goods, by foundry goods at 1000 DEG C of preheating 35-45min, reheat 43min, be incubated 2.5 hours, then in clear water, carry out precooling treatment, the time of precooling treatment is 3.5min, and the temperature of clear water is 39 DEG C.
10. the preparation method of the high manganese and low chromium alloy wear-resisting ball according to any one of claim 1-9, is characterized in that, in S4, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 760-780 DEG C, the time of quench treatment is 4-7 minute, foundry goods after quench treatment is warming up to 180-210 DEG C and carries out temper, the time of temper is 5-6 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature; Preferably, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 765-775 DEG C, the time of quench treatment is 4.5-6.5 minute, foundry goods after quench treatment is warming up to 185-205 DEG C and carries out temper, the time of temper is 5.1-5.9 hour, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature; Preferably, the foundry goods after precooling treatment in S3 is put into NaNO
2salt brine solution in carry out quench treatment, the temperature of quench treatment is 770 DEG C, and the time of quench treatment is 5.5 minutes, the foundry goods after quench treatment is warming up to 190 DEG C and carries out temper, the time of temper is 5.5 hours, obtains chromium abrasion-proof steel ball finished product in high-carbon after cool to room temperature.
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| CN105821292A (en) * | 2016-03-28 | 2016-08-03 | 繁昌县天和机械有限公司 | Method for preparing nanometer modified alloy nodular cast iron |
| CN105855516A (en) * | 2016-06-20 | 2016-08-17 | 马鞍山市益丰实业集团有限公司 | Preparation method of thermal power generation carburization wear-resisting ball |
| CN106222515A (en) * | 2016-08-22 | 2016-12-14 | 蚌埠市光辉金属加工厂 | A kind of nano modified abrasion resistant alloying pellet of high tenacity high rigidity and preparation method thereof |
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| CN106834978A (en) * | 2017-04-19 | 2017-06-13 | 董地 | A kind of ball mill abrasion-proof steel ball and preparation method thereof |
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| CN110093560A (en) * | 2019-04-30 | 2019-08-06 | 徐州天太机械制造有限公司 | A kind of wear-resistant liner and its casting method |
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