CN108624804A - A kind of optics sapphire abrasive disk ductile cast iron material and preparation method thereof - Google Patents

A kind of optics sapphire abrasive disk ductile cast iron material and preparation method thereof Download PDF

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Publication number
CN108624804A
CN108624804A CN201810659791.7A CN201810659791A CN108624804A CN 108624804 A CN108624804 A CN 108624804A CN 201810659791 A CN201810659791 A CN 201810659791A CN 108624804 A CN108624804 A CN 108624804A
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abrasive disk
cast iron
ductile cast
temperature
optics
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CN201810659791.7A
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CN108624804B (en
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朱立芳
朱同武
朱嘉伟
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FOSHAN SANSHUI RIBANG CHEMICAL Co.,Ltd.
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Anhui All Trillion Optical Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/04—Cast-iron alloys containing spheroidal graphite
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D5/00—Heat treatments of cast-iron
    • 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
    • C22C33/00—Making ferrous alloys
    • C22C33/08—Making cast-iron alloys
    • C22C33/10—Making cast-iron alloys including procedures for adding magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite

Abstract

The invention discloses a kind of optics sapphire abrasive disk ductile cast iron materials and preparation method thereof, are related to grinding and polishing technical field, and raw material includes the constituent of following mass percent：C 3.0 3.3%, Si 2.1 2.5%, Mn 0.5 0.7%, Mg 0.04 0.08%, Sn 0.02 0.05%, Ni 0.6 0.9%, Cu 0.6 0.8%, Co 0.01 0.03%, RE 0.03 0.06%, P 0.3 0.5%, S≤0.03%, Fe surpluses.Optimized alloy ingredient of the present invention, obtaining has good intensity and wearability, and the higher spheroidal graphite cast-iron of hardness, for making abrasive disk, it is good to the build-in of the abrasive materials such as diamond, go plane rate quickly, to cut the rate of cutting strong, and abrasive disk consumption low wear rate, from abrasion high uniformity, optics sapphire surface roughness is effectively reduced, disclosure satisfy that sapphire ultraprecision grinding processing.

Description

A kind of optics sapphire abrasive disk ductile cast iron material and preparation method thereof
Technical field
The present invention relates to grinding and polishing technical field more particularly to a kind of optics sapphire abrasive disk ductile cast iron materials And preparation method thereof.
Background technology
The grinding of optics sapphire is a very important technological process in sapphire processing and manufacturing, it determines sapphire Flatness and curvature after grinding and surface roughness.In the prior art, casting abrasive disk is because of the use of its high abrasion resistance It is more.Casting grinding disk material has very much, wherein have grey cast-iron, alloy cast iron, spheroidal graphite cast-iron, steel alloy, stainless steel etc., but All it is difficult to the disk Brinell hardness difference for meeting abrasive disk requirement be less than 10HB, go plane rate quickly, cut the rate of cutting it is strong, from even wearing Requirements, the grinding efficiencies such as property height are low, and grinding effect is poor, and service life is short.
Invention content
Technical problems based on background technology, the present invention propose a kind of optics sapphire abrasive disk spheroidal graphite cast-iron Material and preparation method thereof, the intensity and wearability of the cast iron materials are good, and hardness is moderate, to the build-in of the abrasive materials such as diamond It is good, go plane rate quickly, to cut the rate of cutting strong.
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.0-3.3%, Si 2.1-2.5%, Mn 0.5-0.7%, Mg 0.04-0.08%, Sn 0.02- 0.05%, Ni 0.6-0.9%, Cu 0.6-0.8%, Co 0.01-0.03%, RE 0.03-0.06%, P 0.3-0.5%, S ≤ 0.03%, Fe surplus.
Preferably, the mass percent of Mn, Cu meet relational expression：1.0≤Cu/Mn≤1.25.
Preferably, raw material includes the constituent of following weight percent：C 3.17-3.26%, Si 2.25- 2.35%, Mn 0.57-0.65%, Mg 0.05-0.06%, Sn 0.03-0.04%, Ni 0.64-0.72%, Cu 0.65- 0.72%, Co 0.02-0.03%, RE 0.03-0.04%, P 0.33-0.40%, S≤0.02%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, at the uniform velocity cools down, obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 710-730 DEG C, 3-4h is kept the temperature, cools to 120- with the furnace 140 DEG C are come out of the stove, and are then placed in the heating furnace for being pre-heated to 220-250 DEG C, are first warming up to 560-580 DEG C, keep the temperature 0.5-1h, so After be warming up to 860-880 DEG C, keep the temperature 2-3h, isothermal hardening to get.
Preferably, in S1, the nodulizer used in spheroidising is added for the RE-Mg-ferrosilicon alloy of magnesium content 5-7% Amount is the 0.4-0.7% of weight of molten iron.
Preferably, in S2, at the uniform velocity rate of temperature fall is 30-40 DEG C/min.
Preferably, in S3, austempering temperature is 240-260 DEG C, soaking time 2-3h.
Advantageous effect：Alloying component has a significant impact to the performance of spheroidal graphite cast-iron abrasive disk, optimized alloy ingredient of the present invention, Using Ni, Co, Cu alloying, the fine pearlite of intensity higher, hardness bigger can be obtained, is conducive to abrasive material diamond dust Embedded, the addition of Sn, Co are then conducive to improve the wearability of alloy, and Si, Cu can refine graphite, keep Graphite Distribution uniform, have Conducive to the build-in of diamond dust, improve the abrasiveness of material, Mg and RE play spheroidizing, and although purifying molten iron, the addition of Mn carry High spheroidal graphite cast-iron medium pearlite content, but plasticity declines, when Mn, Cu meet 1.0≤Cu/Mn of relational expression≤1.25, effectively Improve the mechanical property of casting, the P of addition then forms iron phosphide eutectic in alloy, is conducive to the wearability for improving abrasive disk and size is steady It is qualitative, it cooperates between each element, there is good intensity and wearability to obtain, and the higher spheroidal graphite cast-iron of hardness, The matrix medium pearlite of obtained spheroidal graphite cast-iron contains a small amount of ferrite and iron phosphide eutectic up to 70% or more, and passes through After heat treatment, the stability of Nodular Iron and mechanical property is improved, is unlikely to deform in use, improved and use the longevity Life.It is good to the build-in of the abrasive materials such as diamond by the spheroidal graphite cast-iron for making abrasive disk, go plane rate quickly, to cut the rate of cutting strong, And abrasive disk consumption low wear rate, certainly abrasion high uniformity, optics sapphire surface roughness is effectively reduced, service life is long, The tensile strength of the material>620MPa, yield strength>380MPa, Brinell hardness 180-250HB, any spheroidal graphite cast-iron abrasive disk Difference of hardness be not more than 10HB, disclosure satisfy that the processing of sapphire ultraprecision grinding.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.0%, Si 2.5%, Mn 0.5%, Mg 0.08%, Sn 0.02%, Ni 0.6%, Cu 0.8%, Co 0.03%, RE 0.03%, P 0.5%, S 0.024%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation, wherein the nodulizer used in spheroidising closes for the rare earth-Si-Fe-Mg of magnesium content 5% Gold, addition are the 0.7% of weight of molten iron；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, is at the uniform velocity dropped with the rate of 40 DEG C/min Temperature obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 710 DEG C, 3h is kept the temperature, cools to 120 DEG C with the furnace and come out of the stove, It is then placed in and is pre-heated in 220 DEG C of heating furnace, be first warming up to 560 DEG C, keep the temperature 0.5h, then heat to 860 DEG C, heat preservation 3h, isothermal hardening, austempering temperature be 240 DEG C, soaking time be 2h to get.
Embodiment 2
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.3%, Si 2.1%, Mn 0.7%, Mg 0.04%, Sn 0.05%, Ni 0.9%, Cu 0.6%, Co 0.01%, RE 0.06%, P 0.3%, S 0.027%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation, wherein the nodulizer used in spheroidising closes for the rare earth-Si-Fe-Mg of magnesium content 7% Gold, addition are the 0.4% of weight of molten iron；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, is at the uniform velocity dropped with the rate of 30 DEG C/min Temperature obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 730 DEG C, 4h is kept the temperature, cools to 140 DEG C with the furnace and come out of the stove, It is then placed in and is pre-heated in 250 DEG C of heating furnace, be first warming up to 580 DEG C, keep the temperature 1h, then heat to 880 DEG C, keep the temperature 2h, Isothermal hardening, austempering temperature be 260 DEG C, soaking time be 3h to get.
Embodiment 3
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.17%, Si 2.35%, Mn 0.65%, Mg 0.05%, Sn 0.03%, Ni 0.72%, Cu 0.65%, Co 0.03%, RE 0.03%, P 0.40%, S 0.02%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation, wherein the nodulizer used in spheroidising closes for the rare earth-Si-Fe-Mg of magnesium content 5.5% Gold, addition are the 0.6% of weight of molten iron；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, is at the uniform velocity dropped with the rate of 33 DEG C/min Temperature obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 715 DEG C, 3h is kept the temperature, cools to 130 DEG C with the furnace and come out of the stove, It is then placed in and is pre-heated in 230 DEG C of heating furnace, be first warming up to 565 DEG C, keep the temperature 40min, then heat to 865 DEG C, heat preservation 2h, isothermal hardening, austempering temperature be 255 DEG C, soaking time be 3h to get.
Embodiment 4
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.26%, Si 2.25%, Mn 0.57%, Mg 0.06%, Sn 0.04%, Ni 0.64%, Cu 0.71%, Co 0.02%, RE 0.04%, P 0.33%, S 0.016%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation, wherein the nodulizer used in spheroidising closes for the rare earth-Si-Fe-Mg of magnesium content 6.5% Gold, addition are the 0.5% of weight of molten iron；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, is at the uniform velocity dropped with the rate of 37 DEG C/min Temperature obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 725 DEG C, 3.5h is kept the temperature, cools to 135 DEG C with the furnace and go out Stove, is then placed in and is pre-heated in 235 DEG C of heating furnace, is first warming up to 575 DEG C, keeps the temperature 45min, then heats to 875 DEG C, protects Warm 2.5h, isothermal hardening, austempering temperature be 245 DEG C, soaking time be 2.5h to get.
Embodiment 5
A kind of optics sapphire abrasive disk ductile cast iron material proposed by the present invention, raw material include following quality percentage Several constituents：C 3.22%, Si 2.29%, Mn 0.61%, Mg 0.055%, Sn 0.034%, Ni 0.68%, Cu 0.70%, Co 0.022%, RE 0.033%, P 0.35%, S 0.012%, Fe surpluses.
The invention also provides the preparation methods of above-mentioned optics sapphire abrasive disk ductile cast iron material, including following step Suddenly：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element in iron liquid Content carries out nodularization, inoculation, wherein the nodulizer used in spheroidising closes for the rare earth-Si-Fe-Mg of magnesium content 6% Gold, addition are the 0.6% of weight of molten iron；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, is at the uniform velocity dropped with the rate of 35 DEG C/min Temperature obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 720 DEG C, 3.5h is kept the temperature, cools to 120 DEG C with the furnace and go out Stove, is then placed in and is pre-heated in 240 DEG C of heating furnace, is first warming up to 570 DEG C, keeps the temperature 50min, then heats to 870 DEG C, protects Warm 2.5h, isothermal hardening, austempering temperature be 250 DEG C, soaking time be 2.5h to get.
Spheroidal graphite cast-iron in embodiment 1-5 is processed into the cross recess abrasive disk of a diameter of 300mm, to light on grinder It learns sapphire and carries out single side attrition process experiment, abrasive grain uses W3.5BC4 diadusts, which is configured to 20% concentration Lapping liquid, grinding flow quantity be 80mL/min, lap speed 30r/min, milling time 1h, experiment during grind Liquid recycles, and is chosen after grinding and grinds preferable surface, measure respectively its center line average surface roughness Ra, 10 points The value of average surface roughness Rz and maximum height of the profile surface roughness R1, test result see the table below.
Table 1 grinds the sapphire surface roughness of optics after 1h
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Ra/μm 0.065 0.067 0.062 0.060 0.058
Rz/μm 0.672 0.678 0.661 0.664 0.658
R1/μm 0.453 0.459 0.440 0.438 0.435
As it can be seen from table 1 after grinding 1h, Ra, Rz and R1 are substantially reduced, and meet follow-up precision lapping process requirement, And the uniformity of the optics sapphire surface after grinding is preferable, goes plane rate quick.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of optics sapphire abrasive disk ductile cast iron material, which is characterized in that its raw material includes following mass percent Constituent：C 3.0-3.3%, Si 2.1-2.5%, Mn 0.5-0.7%, Mg 0.04-0.08%, Sn 0.02- 0.05%, Ni 0.6-0.9%, Cu 0.6-0.8%, Co 0.01-0.03%, RE 0.03-0.06%, P 0.3-0.5%, S ≤ 0.03%, Fe surplus.
2. optics sapphire abrasive disk ductile cast iron material according to claim 1, which is characterized in that the matter of Mn, Cu Amount percentage meets relational expression：1.0≤Cu/Mn≤1.25.
3. optics sapphire abrasive disk ductile cast iron material according to claim 1 or 2, which is characterized in that its raw material Include the constituent of following weight percent：C 3.17-3.26%, Si 2.25-2.35%, Mn 0.57-0.65%, Mg 0.05-0.06%, Sn 0.03-0.04%, Ni 0.64-0.72%, Cu 0.65-0.72%, Co 0.02-0.03%, RE 0.03-0.04%, P 0.33-0.40%, S≤0.02%, Fe surpluses.
4. a kind of preparation method based on any optics sapphire abrasive disk ductile cast iron materials of claim 1-3, It is characterized by comprising the following steps：
S1, melting：Dispensing is carried out by constituent, using medium-frequency induction furnace melting raw material, adjusts each element content in iron liquid, Carry out nodularization, inoculation；
S2, cast：By spheroidization and inoculation, treated that molten iron constant temperature is poured into mold, at the uniform velocity cools down, obtains embryo material；
S3, heat treatment：Embryo material is put into annealing furnace, is warming up to 710-730 DEG C, 3-4h is kept the temperature, cools to 120-140 DEG C with the furnace It comes out of the stove, is then placed in the heating furnace for being pre-heated to 220-250 DEG C, be first warming up to 560-580 DEG C, keep the temperature 0.5-1h, then rise Temperature to 860-880 DEG C, keep the temperature 2-3h, isothermal hardening to get.
5. the preparation method of optics sapphire abrasive disk ductile cast iron material according to claim 4, which is characterized in that In S1, for the nodulizer used in spheroidising for the RE-Mg-ferrosilicon alloy of magnesium content 5-7%, addition is weight of molten iron 0.4-0.7%.
6. the preparation method of optics sapphire abrasive disk ductile cast iron material according to claim 4, which is characterized in that In S2, at the uniform velocity rate of temperature fall is 30-40 DEG C/min.
7. the preparation method of optics sapphire abrasive disk ductile cast iron material according to claim 4, which is characterized in that In S3, austempering temperature is 240-260 DEG C, soaking time 2-3h.
CN201810659791.7A 2018-06-25 2018-06-25 Nodular cast iron material for optical sapphire grinding disc and preparation method thereof Active CN108624804B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014478A (en) * 2012-12-18 2013-04-03 鞍钢集团矿业公司 Short-process semi-solid cast wear-resistant ball and manufacturing method thereof
CN104894468A (en) * 2015-06-10 2015-09-09 司徒建辉 Section ductile iron

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103014478A (en) * 2012-12-18 2013-04-03 鞍钢集团矿业公司 Short-process semi-solid cast wear-resistant ball and manufacturing method thereof
CN104894468A (en) * 2015-06-10 2015-09-09 司徒建辉 Section ductile iron

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