CN105970085A - Alloy material for chip processing system of marine drilling platform and preparation method of alloy material - Google Patents
Alloy material for chip processing system of marine drilling platform and preparation method of alloy material Download PDFInfo
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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Abstract
The invention provides an alloy material for a chip processing system of a marine drilling platform and a preparation method of the alloy material. The alloy material comprises components of raw materials as follows: C, Mn, Si, S, P, Cr, Ni, Mo, Cu, Ir, Mg, Al, V, W, Pb, Nb, Sn, Zn, Ho, Lu and the balance Fe. The preparation method comprises steps as follows: metal raw materials and nonmetal raw materials are sintered under the vacuum condition at the temperature of 950-1,000 DEG C, the sintered raw materials are cooled to 700 DEG C under the condition of inert gas pressurization for tempering, then are heated to 750 DEG C for annealing and are cooled finally, and a finished product of the material for the chip processing system of the marine drilling platform is obtained. The alloy material has antirust performance, antimagnetic performance, pressure resistance and seawater corrosion resistance and is not prone to deformation.
Description
Technical field
The invention belongs to ferrous alloy field, be specifically related to a kind of marine drilling platform chip processing system alloy material and preparation method thereof.
Background technology
Along with the fast development of World Economics, the demand of the energy is grown with each passing day by the mankind, and to the attention of the energy, oneself has reached unprecedented height in various countries.Along with constantly exploitation, the oil of land, natural gas and mineral resources are own through fewer and feweri, oneself warp of existing energy reserve can not meet the needs of development of world economy, and the emphasis of future source of energy strategy has been put into the ocean of occupation of land sphere area 3/4ths by every country simultaneously.Currently, the exploitation of China's offshore oil has been enter into important period, although the production domesticization of offshore oil equipment is progressive very fast, but the most relatively backward in terms of the development of the high-end drilling equipment in ocean, the supporting high-end equipment of drilling platforms also needs the import that spends huge sums.Accumulation and the raising of manufacture level along with China's engineering research experience, it is believed that in the near future, the high-end drilling equipment with China's independent intellectual property right will be born.So needing us to carry out more careful research for all parts of marine drilling platform.
The chip processing system of marine drilling platform is also waste treatment system.Mention before in drilling process, mud the chip brought up has returned to earth's surface.Have passed through the processing system of mud, this part chips is separated and enters the process of chip processing system.Usually, chip can be first into inside exsiccator, and dried chip is delivered in chip storage box by other spiral transmitter, and the mud that such part is contained in chip is being separated by speed discrepancy again through centrifuge, eventually passes back to blood circulation.Therefore, the material of chip processing system is particularly significant for marine drilling platform；But, marine drilling platform this still in the most perfect technology, the material of marine drilling platform chip processing system is in a great extent to be groped and continuous experimental stage, how to select and to manufacture good chip processing system material antirust, pressure, on-deformable, being when previous urgent problem.
Summary of the invention
In order to overcome above-mentioned deficiency, it is an object of the invention to provide a kind of marine drilling platform chip processing system alloy material and preparation method thereof, consider the cost of each composition, optimize the ratio between each composition, find the material prescription that cost performance is the highest, add rare earth metal, it is possible to efficiently solve the problems referred to above.
In order to solve above-mentioned technical problem, the present invention takes following technical scheme:
nullA kind of marine drilling platform chip processing system alloy material，The material composition of alloy material and mass percent thereof be: C:0.05% ~ 0.10%，Mn:1.0% ~ 2.0%，Si:0.60% ~ 1.50%，S:0.03% ~ 0.04%，P:0.03% ~ 0.04%，Cr:14.0% ~ 16.0%，Ni:5.0% ~ 7.0%，Mo:0.50% ~ 1.0%，Cu:1.25% ~ 1.75%，Ir:0.30% ~ 0.60%，Mg:0.40% ~ 1.0%，Al:1.90% ~ 2.20%，V:0.60% ~ 1.50%，W:0.60% ~ 1.50%，Pb:1.30% ~ 1.70%，Nb:0.60% ~ 1.50%，Sn:0.30% ~ 0.40%，Zn:0.60% ~ 1.50%，RE:0.20% ~ 0.90%，Remaining is Fe.
Further, RE includes, Ho:0.10% ~ 0.45%, Lu:0.10% ~ 0.45%.
Further, material composition and mass percent thereof are: C:0.05%, Mn:1.0%, Si:1.0%, S:0.03%, P:0.03%, Cr:14.50%, Ni:5.70%, Mo:0.90%, Cu:1.50%, Ir:0.50%, Mg:0.50%, Al:2.0%, V:0.90%, W:0.90%, Pb:1.40%, Nb:0.90%, Sn:0.35%, Zn:0.90%, Ho:0.15%, Lu:0.45%, remaining is Fe.
Hereinafter, the restriction reason being grouped into the one-tenth of the alloy of employing in the present invention illustrates, and becomes the % related in being grouped into refer to quality %.
C:0.05% ~ 0.10%, C can form solid solution tissue in steel, improve the intensity of steel；Formation carbide tissue, can improve hardness and the wearability of steel.Therefore, C is in steel, and phosphorus content is the highest, and the intensity of steel, hardness are the highest, but plasticity, toughness also can decrease;Otherwise, phosphorus content is the lowest, and the plasticity of steel, toughness are the highest, its intensity, hardness also can decrease, for adapting to ocean condition and job requirements effect, C content in marine drilling platform chip processing system material is defined as 0.05% ~ 0.10% by the present invention, and preferably 0.08%.
Mn:1.0% ~ 2.0%, Mn is interpolation Mn in a kind of weak alloy deoxidizer, is not only advantageous to the corrosion stability of alloy, and the intensity of alloy can also be made to improve, and can reduce hot cracking tendency, improve corrosion resistance and the welding performance of alloy.Along with Mn content increases, alloy strength increases, and for adapting to the concrete actual specific demand of marine drilling platform chip processing system, Mn content is defined as 1.0% ~ 2.0% by the present invention, and preferably 1.0%.
Si:0.60% ~ 1.50%, silicon is the essential element of most of diecasting alloys.It can improve the casting character of alloy.Silicon alloy has fabulous casting character and corrosion stability, can carry heavy alloyed high temperature formative nature, reduces shrinkage factor, without hot cracking tendency.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Si content in material is defined as 0.60% ~ 1.50% by the present invention, and preferably 1.0%.
P:0.03% ~ 0.04%, P can improve intensity, but seriously reduce plasticity, impact flexibility, cold-bending property and solderability, especially occurring cold short during low temperature, content need to strictly control, and is usually no more than 0.050%, less than 0.045% in Welding Structure, in view of the concrete reality of navigation operation, P content is defined as 0.03% ~ 0.04% by the present invention, and preferably 0.03%.
S:0.03% ~ 0.04%, S can cause alloy hot-short, drop low-alloyed plasticity, impact flexibility, fatigue strength etc., and a certain amount of S Yu Mn forms MnS in steel, is favorably improved the element of machinability.When less than 0.001%, additive effect is insufficient, saturated more than 0.15% additive effect, makes foundry goods produce pore, be difficult to cutting and reduce its toughness, therefore S is defined as 0.03% ~ 0.04%, and preferably 0.03%.
Cr:14.0% ~ 16.0%, chromium can form intermetallic compound in aluminum, hinders forming core and the growth process of recrystallization, has certain invigoration effect to alloy, moreover it is possible to improves alloy ductility and reduces stress corrosion opening cracking maleate sensitivity.But meeting-place increases quenching sensitive, and making anode oxide film is yellow, and Cr content in alloy material is defined as 14.0% ~ 16.0% by the present invention, preferably 14.50%.
Ni:5.0% ~ 7.0%, nickel can put forward heavy alloyed intensity and hardness in the alloy, reduces corrosion resistance.Nickel, as the effect of ferrum, can reduce the alloy corrode to mould, can neutralize again the adverse effect of ferrum simultaneously, put forward heavy alloyed welding performance.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Ni content in material is defined as 5.0% ~ 7.0% by the present invention, and preferably 5.70%.
Mo:0.50% ~ 1.0%, the Mo energy reinforced ferrite of low content, improves intensity and the hardness of steel；Reduce the critical cooling rate of steel, improve the quenching degree of steel；Improving thermostability and the elevated temperature strength of steel, for adapting to the concrete actual specific demand of marine drilling platform chip processing system, Mo content in material is defined as 0.50% ~ 1.0% by the present invention, and preferably 0.90%.
Cu:1.25% ~ 1.75%, copper can improve intensity and the toughness of steel alloy, particularly atmospheric corrosion performance.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Cu content in material is defined as 1.25% ~ 1.75% by the present invention, and preferably 1.50%.
Ir:0.30% ~ 0.60%, Ir, as alloying component, is used for increasing alloy rigidity, and for adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Ir content in alloy material is defined as 0.30% ~ 0.60% by the present invention, and preferably 0.50%.
Mg:0.40% ~ 1.0%, adds a small amount of magnesium in the alloy, can improve intensity and yield limit, improves the machinability of alloy.Alloy containing magnesium has excellent corrosion resistance.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Mg content in alloy material is defined as 0.40% ~ 1.0% by the present invention, and preferably 0.50%.
Al:1.90% ~ 2.20%, Al plays good deoxidation in steel-making, adds a small amount of Al in steel, can refine the crystal grain of steel, improves the intensity of steel, improves impact flexibility, improves the antioxygenic property of steel, improves the rustless steel anti-corrosion capability to strong oxidizing property acids.Al also has non-oxidizability and corrosion resistance, and aluminum share with chromium, silicon, is remarkably improved high temperature non-scale performance and the ability of high-temperature corrosion resistance of steel.For adapting to nautical climate condition and job requirements effect, Al content is defined as 1.90% ~ 2.20% by the present invention, and preferably 2.0%.
V:0.60% ~ 1.50%, the nucleus of the cenotype that the fine particle of V is formed, will reduce the quenching degree of steel.Increase steel belt roof bolt stability and have strong post-curing effect.It is solid-solution in ferrite and has extremely strong solid solution solution strengthening effect.Having Grain refinement, so favourable to low-temperature impact toughness, vanadium carbide is the most wear-resisting in metal carbides, can improve the service life of tool steel.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, V content in alloy material is defined as 0.60% ~ 1.50% by the present invention, and preferably 0.90%.
W:0.60% ~ 1.50%, tungsten fusing point is high, and ratio is great, is valuable alloying element.Tungsten and carbon form tungsten carbide the highest hardness and wearability.For adapting to the concrete actual specific demand of marine drilling platform chip processing system, W content in alloy material is defined as 0.60% ~ 1.50% by the present invention, and preferably 0.90%.
Pb:1.30% ~ 1.70%, Pb has certain harmful effect to the character of steel, and lead can make the plasticity of steel slightly reduce, and makes the impact value of steel have bigger reduction.In the present invention, Pb is to add in casting process, makes can improve in steel alloy the machinability of steel containing a small amount of lead, for adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Pb content is defined as 1.30% ~ 1.70% by the present invention, and preferably 1.40%.
Nb:0.60% ~ 1.50%, Nb energy crystal grain thinning and the superheated susceptivity of reduction steel and temper brittleness, improve intensity, but plasticity and toughness declined.In ordinary low-alloy steel, add Nb, resistant to hydrogen under weather-resistant and high temperature, nitrogen, ammonia corrosion ability can be improved.Nb can improving welding property.In austenitic stainless steel, add Nb, intercrystalline corrosion phenomenon can be prevented.Nb content in material is defined as 0.60% ~ 1.50% by the present invention, and preferably 0.90%.
Sn:0.30% ~ 0.40%, adds a certain amount of stannum in steel, the resistance to corrosion of meeting raising steel in various degree and wearability.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Sn content in alloy material is defined as 0.30% ~ 0.40% by the present invention, and preferably 0.35%.
Zn:0.60% ~ 1.50%, Zn can improve mobility in the alloy, increases red brittleness, reduces corrosion resistance, therefore should control the content of zinc in prescribed limit.The alloy that zinc content is the highest but has preferable casting character and mechanical performance, machining is relatively good, for adapting to ocean condition and the specific demand of marine drilling platform chip processing system, Zn content in alloy material is defined as 0.60% ~ 1.50% by the present invention, and preferably 0.90%.
RE:0.20% ~ 0.90%, rare earth element adds in alloy, it is possible to increase the mechanical strength of alloy material and corrosion resistance, increase constitutional supercooling, crystal grain thinning when making alloy casting, reduce secondary intergranular away from, reduce the gas in alloy and be mingled with, and making constituent phases tend to nodularization.Also can reduce smelt surface tension, increase mobility, beneficially casting ingot-forming, processing performance is had a significant impact；Rare earth metal can also eliminate the harmful effect to marine drilling platform chip processing system of the hydrological environment of magnetic field and complexity, thus improves the service life of marine drilling platform；Simultaneously under conditions of load is identical, hence it is evident that alleviate structural member weight.For adapting to ocean condition and the specific demand of marine drilling platform chip processing system, RE content in material is defined as 0.20% ~ 0.90% by the present invention, including Ho:0.10% ~ 0.45%, Lu:0.10% ~ 0.45%, preferably Ho:0.15%, Lu:0.45%.The rare earth metal content used in the present invention is less, but can play good demagnetization and increase the strength of materials, the effect of wearability, advantageously reduces cost.
Another object of the present invention, is to provide the preparation method of a kind of marine drilling platform chip processing system alloy material, and making step is as follows:
Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, RE simple substance of melting is according to material composition ratio, add in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 950 DEG C ~ 1000 DEG C；
Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 30min ~ 50min；
Step S03, at noble gas pressurized conditions borehole cooling to 700 DEG C of tempering, be incubated 30min ~ 50min, then be warming up to 750 DEG C of annealing, insulation 30min ~ 50min, be finally cooled to room temperature, obtain marine drilling platform chip processing system alloy material finished product.
Further, in step S01, when the temperature of sintering is 950 DEG C ~ 970 DEG C, RE consists of Lu.
Further, in step S01, when the temperature of sintering is 970 DEG C ~ 1000 DEG C, RE consists of Ho and Lu.
Further, in step S03, the speed of cooling is 30 DEG C/min ~ 50 DEG C/min.
Further, in step S03, the speed of intensification is 30 DEG C/min ~ 50 DEG C/min.
Further, in step S03, described noble gas is helium or argon.
Further, in step S03, the condition of described pressurization is 30MPa ~ 50MPa.
The invention have the advantage that
Marine drilling platform chip processing system finished material provided by the present invention, has good antirust, antimagnetic, pressure, seawater corrosion resistance, on-deformable performance.
Detailed description of the invention
The specific embodiment of the present invention given below, is used for being described in further detail the present invention.
Embodiment
1
Raw material components:
C:0.05%, Mn:1.0%, Si:1.0%, S:0.03%, P:0.03%, Cr:14.50%, Ni:5.70%, Mo:0.90%, Cu:1.50%, Ir:0.50%, Mg:0.50%, Al:2.0%, V:0.90%, W:0.90%, Pb:1.40%, Nb:0.90%, Sn:0.35%, Zn:0.90%, Ho:0.15%, Lu:0.45%, remaining is Fe.
It is prepared via a method which:
Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, Ho, Lu simple substance of melting is according to material composition ratio, add in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 980 DEG C；
Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 46min；
Step S03, helium pressurization 47Mpa under the conditions of, it is cooled to 700 DEG C with the rate of temperature fall of 44 DEG C/min, insulation 46min, it is warming up to 750 DEG C of insulation 46min annealing with the heating rate of 44 DEG C/min again, is finally down to room temperature with the rate of temperature fall of 44 DEG C/min and obtains marine drilling platform chip processing system alloy material finished product.
Embodiment
2
Raw material components:
C:0.05%, Mn:1.0%, Si:0.60%, S:0.03%, P:0.03%, Cr:14.0%, Ni:5.0%, Mo:0.50%, Cu:1.25%, Ir:0.30%, Mg:0.40%, Al:1.90%, V:0.60%, W:0.60%, Pb:1.30%, Nb:0.60%, Sn:0.30%, Zn:0.60%, Lu:0.20%, remaining is Fe.
It is prepared via a method which:
Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, Lu simple substance of melting, according to material composition ratio, adds in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 950 DEG C；
Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 40min；
Step S03, helium pressurization 30Mpa under the conditions of, it is cooled to 700 DEG C with the rate of temperature fall of 30 DEG C/min, insulation 30min, it is warming up to 750 DEG C of insulation 30min annealing with the heating rate of 30 DEG C/min again, is finally down to room temperature with the rate of temperature fall of 30 DEG C/min and obtains marine drilling platform chip processing system alloy material finished product.
Embodiment
3
Raw material components:
C:0.10%, Mn:2.0%, Si:1.50%, S:0.04%, P:0.04%, Cr:16.0%, Ni:7.0%, Mo:1.0%, Cu:1.75%, Ir:0.60%, Mg:1.0%, Al:2.20%, V:1.50%, W:1.50%, Pb:1.70%, Nb:1.50%, Sn:0.40%, Zn:1.50%, Lu:0.45%, Ho:0.45%, remaining is Fe.
It is prepared via a method which:
Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, Lu, Ho simple substance of melting is according to material composition ratio, add in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 1000 DEG C；
Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 50min；
Step S03, under the conditions of argon pressurization 50Mpa, it is cooled to 700 DEG C with the rate of temperature fall of 50 DEG C/min, insulation 50min, it is warming up to 750 DEG C of insulation 50min annealing with the heating rate of 50 DEG C/min again, is finally down to room temperature with the rate of temperature fall of 50 DEG C/min and obtains marine drilling platform chip processing system alloy material finished product.
Embodiment
4
Raw material components:
, C:0.75%, Mn:1.50%, S:0.035%, P:0.035%, Si:1.05%, Cr:15.0%, Ni:6.0%, Mo:0.75%, Cu:1.50%, Ir:0.45%, Mg:0.70%, Al:2.05%, V:1.05%, W:1.05%, Pb:1.50%, Nb:1.05%, Sn:0.35%, Zn:1.05%, Ho:0.28%, Lu:0.28%, remaining is Fe.
It is prepared via a method which:
Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, Lu, Ho simple substance of melting is according to material composition ratio, add in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 975 DEG C；
Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 40min；
Step S03, under the conditions of argon pressurization 40Mpa, it is cooled to 700 DEG C with the rate of temperature fall of 40 DEG C/min, insulation 40min, it is warming up to 750 DEG C of insulation 40min annealing with the heating rate of 40 DEG C/min again, is finally down to room temperature with the rate of temperature fall of 40 DEG C/min and obtains marine drilling platform chip processing system alloy material finished product.
Experimental example
1
Wear resistence contrast test:
The marine drilling platform chip processing system alloy material of the embodiment of the present invention 1 ~ 4 preparation and typical chip processing system alloy material do slurry (quartz sand+water) wet grinding test on jetting type erosive-corrosive wear testing machine, and make the corrosion resistance test of material, performance is shown in Table 1.
Table 1 wear resistence and hardness balance's result of the test
| Material | Anticorrosive multiplying power | The wear-resistant multiplying power of wet grinding | Hardness (HB) |
| Typical chip processing system material | 1.0 | 1.0 | 130 |
| The made alloy material of embodiment 1 | 2.48 | 1.48 | 189 |
| The made alloy material of embodiment 2 | 2.45 | 1.46 | 187 |
| The made alloy material of embodiment 3 | 2.42 | 1.46 | 187 |
| The made alloy material of embodiment 4 | 2.43 | 1.47 | 186 |
Experimental example
2
By the marine drilling platform chip processing system alloy material of the embodiment of the present invention 1 ~ 4 preparation compared with typical chip processing system material, its results of property such as table 2 below.
Table 2 base metal characteristic performance compares
From above-mentioned test example, the properties of alloy material of the present invention is above typical chip processing system alloy material, the special material consumption preparing alloy of the present invention is few, and relative cost is low, is more suitable for for marine drilling platform chip processing system alloy material.
These are only the preferred embodiments of the present invention and experimental example, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
- null1. a marine drilling platform chip processing system alloy material，It is characterized in that，The material composition of described alloy material and mass percent thereof be: C:0.05% ~ 0.10%，Mn:1.0% ~ 2.0%，Si:0.60% ~ 1.50%，S:0.03% ~ 0.04%，P:0.03% ~ 0.04%，Cr:14.0% ~ 16.0%，Ni:5.0% ~ 7.0%，Mo:0.50% ~ 1.0%，Cu:1.25% ~ 1.75%，Ir:0.30% ~ 0.60%，Mg:0.40% ~ 1.0%，Al:1.90% ~ 2.20%，V:0.60% ~ 1.50%，W:0.60% ~ 1.50%，Pb:1.30% ~ 1.70%，Nb:0.60% ~ 1.50%，Sn:0.30% ~ 0.40%，Zn:0.60% ~ 1.50%，RE:0.20% ~ 0.90%，Remaining is Fe.
- Alloy material the most according to claim 1, it is characterised in that described RE includes: Ho:0.10% ~ 0.45%, Lu:0.10% ~ 0.45%.
- Alloy material the most according to claim 1, it is characterised in that described material composition and mass percent thereof be: C:0.05%, Mn:1.0%, Si:1.0%, S:0.03%, P:0.03%, Cr:14.50%, Ni:5.70%, Mo:0.90%, Cu:1.50%, Ir:0.50%, Mg:0.50%, Al:2.0%, V:0.90%, W:0.90%, Pb:1.40%, Nb:0.90%, Sn:0.35%, Zn:0.90%, Ho:0.15%, Lu:0.45%, remaining is Fe.
- 4. the preparation method according to alloy material described in any one of claim 1 ~ 3, it is characterised in that making step is as follows:Step S01, will treat that Fe, Mn, Cr, Ni, Mo, Cu, Ir, Mg, Al, W, Pb, Nb, Sn, Zn, RE simple substance of melting is according to material composition ratio, add in the vacuum chamber of water jacketed copper crucible, evacuation, melted under the conditions of sintering temperature is 950 DEG C ~ 1000 DEG C；Step S02, under conditions of metal melting according to material composition ratio add C, Si, S, P, V simple substance, stir, and be incubated 30min ~ 50min；Step S03, at noble gas pressurized conditions borehole cooling to 700 DEG C of tempering, be incubated 30min ~ 50min, then be warming up to 750 DEG C of annealing, insulation 30min ~ 50min, be finally cooled to room temperature, obtain marine drilling platform chip processing system alloy material finished product.
- The most according to claim 4, preparation method, it is characterised in that in step S01, when the temperature of described sintering is 950 DEG C ~ 970 DEG C, RE consists of Lu.
- Preparation method the most according to claim 4, it is characterised in that in step S01, when the temperature of described sintering is 970 DEG C ~ 1000 DEG C, RE consists of Ho and Lu.
- Preparation method the most according to claim 4, it is characterised in that in step S03, the speed of described cooling is 30 DEG C/min ~ 50 DEG C/min.
- Preparation method the most according to claim 4, it is characterised in that in step S03, the speed of described intensification is 30 DEG C/min ~ 50 DEG C/min.
- Preparation method the most according to claim 4, it is characterised in that in step S03, described noble gas is helium or argon.
- Preparation method the most according to claim 4, it is characterised in that in step S03, the condition of described pressurization is 30MPa ~ 50MPa.
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