CN105695878A - Manganese-tungsten-titanium wear-resistant cast steel and preparation method thereof - Google Patents
Manganese-tungsten-titanium wear-resistant cast steel and preparation method thereof Download PDFInfo
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- CN105695878A CN105695878A CN201610253154.0A CN201610253154A CN105695878A CN 105695878 A CN105695878 A CN 105695878A CN 201610253154 A CN201610253154 A CN 201610253154A CN 105695878 A CN105695878 A CN 105695878A
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- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 32
- MSCSENAVCUWVAQ-UHFFFAOYSA-N [Mn].[W].[Ti] Chemical compound [Mn].[W].[Ti] MSCSENAVCUWVAQ-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010936 titanium Substances 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 20
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 18
- 238000010791 quenching Methods 0.000 claims description 17
- 230000000171 quenching effect Effects 0.000 claims description 17
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 16
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 16
- 229910001145 Ferrotungsten Inorganic materials 0.000 claims description 16
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 16
- 229910052804 chromium Inorganic materials 0.000 claims description 15
- 238000003723 Smelting Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 6
- 230000006911 nucleation Effects 0.000 abstract description 5
- 238000010899 nucleation Methods 0.000 abstract description 5
- 229910001567 cementite Inorganic materials 0.000 abstract description 2
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 21
- 229910001566 austenite Inorganic materials 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 150000002910 rare earth metals Chemical class 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- -1 chromium carbides Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention relates to the field of wear-resistant cast steel, in particular to a manganese-tungsten-titanium wear-resistant cast steel and a preparation method thereof. The wear-resistant cast steel is prepared from, by mass, 0.20-0.35% of C, 1.0-2.0% of W, 0.5-1.5% of Si, 0.8-1.5% of Mn, 1.0-2.0% of Cr, 1.0-2.0% of Ti, smaller than or equal to 0.04% of S, smaller than or equal to 0.04% of P and the balance Fe. In the preparation process, tungsten atoms exist in molten steel and can partially substitute iron atoms in carbide in position, (W,Fe)3C is formed, the microhardness of common cementite is about 800 Hv, the microhardness can be improved by adding tungsten atoms and can reach 1600-1800 Hv or so, and thus the hardness of the cast steel is improved; meanwhile, the element Ti is added, molten steel can generate adequate nucleation sites TiC, and thus the particle number of the cast steel is greatly increased.
Description
Technical Field
The invention relates to the field of wear-resistant cast steel materials, in particular to manganese-tungsten-titanium wear-resistant cast steel and a preparation method thereof.
Background
At present, wear-resistant materials with martensite or bainite matrix structures or third-generation wear-resistant materials, namely high-chromium cast steel, which has martensite, bainite and residual austenite matrixes and also has particle reinforced phases are mostly applied to the field of wear-resistant materials to develop wear-resistant parts, and because the high-chromium cast steel also has a high-hardness reinforced phase Cr7C3 and the carbide microhardness of the high-hardness reinforced phase reaches HV 1300-1600, the properties of the high-chromium cast steel are greatly improved compared with those of the first two generations of wear-resistant materials, namely white cast steel and high-manganese steel, and the hardness can reach HRC 60-65, but because the carbide of the high-chromium cast steel usually presents a long strip shape and is relatively thick, the impact toughness of the high-chromium cast steel is generally between 3 and 7J/cm2, and some of the high-chromium cast steel are also lower than 3J/cm2, so the high-chromium cast steel is relatively brittle.
With the further severe working conditions and large-scale equipment of some engineering machinery, mining machinery, metallurgical machinery and the like, for example, the equipment markets of sand making machine equipment, hot rolls and the like, the demand for wear-resistant materials with higher wear resistance is more and more urgent. Under the condition, a great amount of experimental research is carried out by predecessors, and a plurality of wear-resistant materials are developed to manufacture wear-resistant key parts so as to meet the service requirement of prolonging the actual service life of a workpiece under severe working conditions.
The composite wear-resistant material based on chromium, manganese, silicon and the like is researched and developed in China, and is successfully applied to the wear-resistant part of the hot roller. Although the research on solidification characteristics, deterioration mechanism, heat treatment process characteristics and the like of the composite wear-resistant material developed by using the casting process at present is nearly mature. The carbide particles in the wear-resistant material have various shapes, such as globose shapes, massive shapes, flower shapes, strip shapes, rod shapes, worm shapes and the like; the spherical primary phase with smooth boundary is the most ideal form, which is beneficial to improving the performance. Therefore, by further optimizing the carbide particle morphology and distribution, it is very beneficial to improve the wear resistance and the performance stability of the wear-resistant material.
In the prior art, the modification treatment method for the wear-resistant material mainly uses rare earth silicon magnesium or (containing B and Zr) sylvite as an inoculation modifier, and the usage amount is 0.5-1.0%. The common rare earth silicon and magnesium are used as alterants, on one hand, the rare earth has the function of purifying molten steel, can generate compounds with oxygen, nitrogen and the like in the molten steel, and simultaneously, the compounds can also be used as nucleation particles to play the role of refining carbide; on the other hand, the rare earth is a surface active element and can be enriched on the surface of the carbide in the solidification process, thereby inhibiting the carbide from growing along the grain boundary and refining the carbide.
In the prior art, rare earth is often used as a modifier, and a large amount of rare earth oxides, nitrides and the like are generated as nucleation particles of carbides when molten steel is purified by utilizing the rare earth; however, the lattice type of these rare earth oxides, nitrides is different from that of carbides. Therefore, these rare earth oxides and nitrides cannot be used as effective heterogeneous nucleation cores of carbide carbides, and the effect is very limited.
Disclosure of Invention
Aiming at the technical problems, the invention provides manganese-tungsten-titanium wear-resistant cast steel with reliable performance, which comprises the following components in percentage by mass: c: 0.20-0.35%, W: 1.0-2.0%, Si: 0.5-1.5%, Mn: 0.8-1.5%, Cr: 1.0-2.0%, Ti: 1.0-2.0%, S: less than or equal to 0.04 percent, P: less than or equal to 0.04 percent, and the balance being iron; during the preparation, tungsten atoms exist in the molten steel, and the tungsten atoms can partially replace the position of iron atoms in carbide to form (W, Fe)3C, the microhardness of common cementite is about 800Hv, the microhardness can be improved by adding tungsten atoms, which can reach about 1600-1800 Hv, so that the hardness of the cast steel is improved; at the same time, Ti element is added to make molten steel generate enough nucleation particles TiC to make the particles numberThe amount is greatly increased.
The invention also provides a preparation method of the manganese-tungsten-titanium wear-resistant cast steel, which comprises the following steps:
1) cleaning waste steel, ferrotungsten, ferromanganese, ferrotitanium and ferrochromium, mixing according to the mass percentage requirements, placing in a classified mode, and drying the ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochromium for later use, wherein the drying is to avoid gas brought into molten steel;
2) then adding scrap steel into the furnace, and then adding ferromanganese and ferrochromium for smelting;
3) adding ferrotungsten at the later stage of smelting, and adding ferrotitanium into the furnace after the ferrotitanium is molten down;
4) then adding aluminum particles for deoxidation and discharging from the furnace;
5) and pouring the molten steel after the molten steel is taken out of the furnace, and then carrying out heat treatment.
Preferably, the smelting temperature is 1550-1650 ℃.
Preferably, the mass fraction of aluminum particles used for deoxidation accounts for 0.1-0.15% of the mass of the molten steel.
Preferably, the casting temperature is 1500 ℃.
Preferably, the heat treatment is performed by three times of quenching and one time of tempering.
Preferably, the steel is quenched at 950-1000 ℃ for 30min, then cooled by air, quenched at 900-950 ℃ for 30min, then water-cooled, quenched at 600-800 ℃ for 5min, then water-cooled, and finally tempered at 200-300 ℃ for 2h, and then air-cooled.
According to the technical scheme, the preparation method can enable the carbide particles in the wear-resistant material to be more spheroidized and more uniformly distributed, overcomes the defects that the carbide in the prior art has a plurality of imperfect shapes such as large block, flower, strip, rod and worm shapes and the like and the particles are distributed in chrysanthemum shape and the like, and improves the comprehensive performance of the material.
Detailed Description
The invention will now be described in detail with reference to exemplary embodiments thereof and the description herein being illustrative of the invention and not limiting thereof.
The manganese-tungsten-titanium wear-resistant cast steel comprises the following components in percentage by mass: c: 0.20-0.35%, W: 1.0-2.0%, Si: 0.5-1.5%, Mn: 0.8-1.5%, Cr: 1.0-2.0%, Ti: 1.0-2.0%, S: less than or equal to 0.04 percent, P: less than or equal to 0.04 percent, and the balance being iron; wherein,
carbon C is important for the structure and the performance of the composite wear-resistant material, can be dissolved in a matrix to play a solid solution strengthening role, is a basic element for forming a carbide reinforcing phase, can promote martensite transformation, and improves the hardenability of the composite wear-resistant material. Too much carbon content increases the brittleness of the material, and too little reduces the amount of carbide-strengthening phases resulting in a reduced wear resistance. Therefore, the content of C in the material is controlled to be 0.20-0.35 percent.
Chromium Cr may also react with C to form Cr6C、Cr7C3And Cr23C6Carbides are obtained, but the chromium carbides have low microhardness, and the chromium carbides have poor toughness due to long strip shapes and are preferentially formed in the solidification process of a matrix structure; therefore, in the present invention, the amount of Cr element added is small, and a small amount of Cr can be dissolved in austenite to mainly improve the hardenability and hardenability of the matrix.
In the process of producing cast steel, the austenite region can be narrowed, the solubility of carbon in austenite can be reduced, and the eutectic point and the eutectoid point can be moved in the direction of low carbon content. With the increase of the tungsten content, the critical cooling speed can be reduced, so that austenite is more prone to be transformed into martensite or bainite, the matrix hardness is increased, and the tungsten series alloy cast steel has high wear resistance.
Titanium Ti is a strong carbide forming element and reacts with C in molten steel to form a large amount of fine and dispersed TiC particles, so that austenite dendritic crystals can be refined, and the form and distribution of eutectic carbide are improved. Therefore, in the component design, the Ti content is directly controlled to be 1.0-2.0%, the alloy is directly added into the molten steel so as to be easy to melt, and a large amount of relatively uniform TiC particles are generated by the electromagnetic field stirring effect of the adopted medium-frequency induction smelting furnace. However, too little or too much Ti element in the molten steel is not favorable for achieving the actual effect, too little Ti element is not favorable for enabling the matrix to generate enough crystal core particles and eutectic carbides for refining the carbides, too much Ti element reduces the fluidity and the mold filling capacity of the molten steel, is not favorable for improving the compactness of a workpiece, and has negative influence on the wear resistance, so the upper limit of the Ti element in the component design is controlled to be 2.0%.
The heat treatment of the invention adopts three times of quenching and one time of tempering, namely quenching at 950-1000 ℃ for 30min, then cooling by air, quenching at 900-950 ℃ for 30min, then cooling by water, quenching at 600-800 ℃ for 5min, cooling by water, and finally tempering at 200-300 ℃ for 2h, and cooling by air; in this way, not only is more austenite obtained, but also carbide hard particles formed in the structure tempering process can be increased, so that the hardness is improved.
Example 1
Cleaning waste steel, ferrotungsten, ferromanganese, ferrotitanium and ferrochrome, mixing according to the chemical mixture ratio of 0.20% of C, 1.0% of W, 1.5% of Si, 1.5% of Mn, 1.0% of Cr, 1.0% of Ti, 0.04% of S, 0.04% of P and the balance of iron by mass percent, drying the ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochrome, and then classifying and placing for later use; sequentially putting the prepared scrap steel, ferromanganese and ferrochromium ingredients into a furnace for heating, adding ferrotungsten at the later stage of smelting, adding ferrotitanium into the furnace after the mixture is molten down, wherein the smelting temperature is 1550 ℃, adding 0.1% of aluminum particles after about 2min for deoxidation and discharging; then pouring is carried out, and the pouring temperature is 1500 ℃; quenching at 950 deg.C for 30min, air cooling, quenching at 900 deg.C for 30min, water cooling, quenching at 800 deg.C for 5min, and tempering at 300 deg.CAnd (5) cooling the cast steel by air after 2 hours to obtain the manganese-tungsten-titanium wear-resistant cast steel. The cast steel material is subjected to performance test to obtain the following components: the hardness is 48.2HRC, the yield limit is 1630MPa, the strength limit is 1710MPa, and the impact toughness is 48J/cm2The elongation was 5.1%.
Example 2
Cleaning waste steel, ferrotungsten, ferromanganese, ferrotitanium and ferrochrome, batching according to the chemical proportion of 0.3 percent of C, 1.5 percent of W, 1 percent of Si, 1.1 percent of Mn, 1.5 percent of Cr, 1.5 percent of Ti, 0.03 percent of S, 0.03 percent of P and the balance of iron by mass percent, drying the ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochrome, and placing the dried ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochrome in a classified mode for later use; sequentially putting the prepared scrap steel, ferromanganese and ferrochromium ingredients into a furnace for heating, adding ferrotungsten at the later stage of smelting, adding ferrotitanium into the furnace after the mixture is molten down, wherein the smelting temperature is 1600 ℃, and adding 0.15% of aluminum particles for deoxidation and discharging from the furnace after about 2 min; then pouring is carried out, and the pouring temperature is 1500 ℃; then quenching at 970 ℃ for 30min, then cooling by air, then quenching at 940 ℃ for 30min, then cooling by water, then quenching at 700 ℃ for 5min, then cooling by water, and then tempering at 260 ℃ for 2h, and then cooling by air to obtain the manganese-tungsten-titanium wear-resistant cast steel. The cast steel material is subjected to performance test to obtain the following components: hardness of 50.6HRC, yield limit of 1680MPa, strength limit of 1730MPa, and impact toughness of 50.1J/cm2The elongation was 5.3%.
Example 3
Cleaning waste steel, ferrotungsten, ferromanganese, ferrotitanium and ferrochrome, mixing according to the chemical proportion of 0.35% of C, 2.0% of W, 0.5% of Si, 0.8% of Mn, 2.0% of Cr, 2.0% of Ti, 0.02% of S, 0.03% of P and the balance of iron by mass percent, drying the ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochrome, and then classifying and placing for later use; sequentially putting the prepared scrap steel, ferromanganese and ferrochromium ingredients into a furnace for heating, adding ferrotungsten at the later stage of smelting, adding ferrotitanium into the furnace after the mixture is molten down, wherein the smelting temperature is 1650 ℃, adding 0.1 percent of aluminum particles after about 2min for deoxidation and discharging; then pouring is carried out, and the pouring temperature is 1500 ℃; then 1 is addedQuenching at 000 ℃ for 30min, then cooling by air, quenching at 950 ℃ for 30min, then cooling by water, quenching at 600 ℃ for 5min, then cooling by water, tempering at 200 ℃ for 2h, and then cooling by air to obtain the manganese-tungsten-titanium wear-resistant cast steel. The cast steel material is subjected to performance test to obtain the following components: the hardness is 48.3HRC, the yield limit is 1610MPa, the strength limit is 1730MPa, and the impact toughness is 49J/cm2The elongation was 5.3%.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (7)
1. The manganese-tungsten-titanium wear-resistant cast steel comprises the following components in percentage by mass: c: 0.20-0.35%, W: 1.0-2.0%, Si: 0.5-1.5%, Mn: 0.8-1.5%, Cr: 1.0-2.0%, Ti: 1.0-2.0%, S: less than or equal to 0.04 percent, P: less than or equal to 0.04 percent and the balance of iron.
2. A method for preparing the manganese-tungsten-titanium wear-resistant cast steel as claimed in claim 1, which comprises the following steps:
1) cleaning waste steel, ferrotungsten, ferromanganese, ferrotitanium and ferrochromium, mixing according to the mass percentage requirements, placing in a classified mode, and drying the ferrotungsten, the ferromanganese, the ferrotitanium and the ferrochromium for later use;
2) then adding scrap steel into the furnace, and then adding ferromanganese and ferrochromium for smelting;
3) adding ferrotungsten at the later stage of smelting, and adding ferrotitanium after the ferrotitanium is molten down;
4) then adding aluminum particles for deoxidation and discharging from the furnace;
5) and pouring the molten steel after the molten steel is taken out of the furnace, and then carrying out heat treatment.
3. The method of claim 2, wherein: the smelting temperature is 1550-1650 ℃.
4. The method of claim 2, wherein: the mass fraction of aluminum particles used for deoxidation accounts for 0.1-0.15% of the mass of the molten steel.
5. The method of claim 2, wherein: the casting temperature was 1500 ℃.
6. The method of claim 5, wherein: the heat treatment adopts three times of quenching and one time of tempering.
7. The method of claim 6, wherein: quenching at 950-1000 ℃ for 30min, cooling with air, quenching at 900-950 ℃ for 30min, water cooling, quenching at 600-800 ℃ for 5min, water cooling, tempering at 200-300 ℃ for 2h, and air cooling.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779895A (en) * | 2016-04-22 | 2016-07-20 | 柳州凯通新材料科技有限公司 | Manganese-tungsten-titanium wear-resisting cast steel and machining process thereof |
| CN114000039A (en) * | 2021-11-04 | 2022-02-01 | 江西钨业控股集团有限公司 | A kind of preparation method of wear-resistant alloy material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381849A (en) * | 2008-01-07 | 2009-03-11 | 郑州大学 | An alloyed wear-resistant and heat-resistant steel |
| CN101497963A (en) * | 2009-03-02 | 2009-08-05 | 暨南大学 | Medium alloy abrasion resistant steel and use thereof |
| CN101688283A (en) * | 2007-05-29 | 2010-03-31 | 杰富意钢铁株式会社 | Abrasion-resistant steel sheet having excellent processability, and method for production thereof |
| CN105779895A (en) * | 2016-04-22 | 2016-07-20 | 柳州凯通新材料科技有限公司 | Manganese-tungsten-titanium wear-resisting cast steel and machining process thereof |
-
2016
- 2016-04-22 CN CN201610253154.0A patent/CN105695878A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688283A (en) * | 2007-05-29 | 2010-03-31 | 杰富意钢铁株式会社 | Abrasion-resistant steel sheet having excellent processability, and method for production thereof |
| CN101381849A (en) * | 2008-01-07 | 2009-03-11 | 郑州大学 | An alloyed wear-resistant and heat-resistant steel |
| CN101497963A (en) * | 2009-03-02 | 2009-08-05 | 暨南大学 | Medium alloy abrasion resistant steel and use thereof |
| CN105779895A (en) * | 2016-04-22 | 2016-07-20 | 柳州凯通新材料科技有限公司 | Manganese-tungsten-titanium wear-resisting cast steel and machining process thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779895A (en) * | 2016-04-22 | 2016-07-20 | 柳州凯通新材料科技有限公司 | Manganese-tungsten-titanium wear-resisting cast steel and machining process thereof |
| CN114000039A (en) * | 2021-11-04 | 2022-02-01 | 江西钨业控股集团有限公司 | A kind of preparation method of wear-resistant alloy material |
| CN114000039B (en) * | 2021-11-04 | 2022-08-09 | 江西钨业控股集团有限公司 | Preparation method of wear-resistant alloy material |
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