CN1571857A - Fe-Ni based alloy for shadow mask raw material excellent in corrosion resistance and shadow mask material - Google Patents
Fe-Ni based alloy for shadow mask raw material excellent in corrosion resistance and shadow mask material Download PDFInfo
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- CN1571857A CN1571857A CNA028207742A CN02820774A CN1571857A CN 1571857 A CN1571857 A CN 1571857A CN A028207742 A CNA028207742 A CN A028207742A CN 02820774 A CN02820774 A CN 02820774A CN 1571857 A CN1571857 A CN 1571857A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 73
- 239000000956 alloy Substances 0.000 title claims abstract description 73
- 238000005260 corrosion Methods 0.000 title claims abstract description 37
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000002994 raw material Substances 0.000 title claims description 26
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 239000010955 niobium Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 229910000952 Be alloy Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 229960001866 silicon dioxide Drugs 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- 238000000137 annealing Methods 0.000 abstract description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000002872 contrast media Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000005087 graphitization Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012769 display material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000007669 thermal treatment Methods 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
- C22C38/02—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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0727—Aperture plate
- H01J2229/0733—Aperture plate characterised by the material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
There is provided a Fe-Ni based alloy for shadow mask having high corrosion resistance, high rigidity and low thermal expansion and hardly generating rust even if being exposed in air in the course of circulation and transportation after the bright annealing as a middle step of the starting material production and a shadow mask material. A Fe-Ni based alloy for a shadow mask having an excellent corrosion resistance comprises C<=0.01 wt %, Si: 0.01-0.1 wt %, Mn: 0.01-0.1 wt %, Ni: 35-37 wt %, Cr<=0.1 wt %, Nb: 0.01-1.0 wt %, S<=0.0020 wt %, Al<=0.005 wt % and the balance being Fe and inevitable impurity, and a shadow mask material is comprised of the alloy having a proof strength at 0.2% of not less than 300 N/mm<2 >and a thermal expansion coefficient of not more than 1.0x10<-6>/ DEG C.
Description
Technical field
The present invention relates to be used for shadow mask raw material colour television set cathode tube etc., that have excellent corrosion resisting property is alloy and material for shadow mask with Fe-Ni, specifically, the Fe-Ni that relates to excellent corrosion-proof performance, high rigidity and low heat expansion property is alloy and the material for shadow mask that uses this alloy, behind the clean annealing of this alloy in raw material manufacturing process, even also seldom get rusty when being exposed in the atmosphere.
Background technology
Adopt low carbon aluminum-killed steel plate as material for shadow mask at present.The operation of cold rolling and smooth (comprising unglazed rolling) is at last carried out in the process annealing of the Production Example of this steel plate as eliminating stress with continuous annealing furnace or periodic annealing furnace through the steel plate after cold rolling the centre then.
In general, the material of using for the cathode tube or the indicating meter of high-quality colour television set, the material of using for the colour television set picture tube for example, because the electron beam by the shadow mask perforate is no more than 1/3 of whole electron beams, the collision of remaining electron beam and shadow mask, so shadow mask is sometimes even be heated to about 80 ℃.Its result causes the material for shadow mask thermal expansion and produces distortion, and purity of color is reduced.Therefore as the material of material for shadow mask, use the little raw material of thermal expansivity favourable.In this sense, using the little Fe-36Ni of thermal expansion influence in recent years is that invar replaces above-mentioned aluminum-killed steel plate.
At this Fe-Ni is in the alloy sheets, in recent years with complanation, the maximization of picture, also to use the low heat expansion property Fe-36Ni that reduces alloying element Mn be alloy sheets (spy opens flat 5-186853 communique) and add Nb with the alloy sheets (No. the 3150831st, Japanese Patent) of realization high strength etc.
The low heat expansion property Fe-36Ni of low Mn is that alloy and the high-strength F e-36Ni that adds Nb are that alloy is not exposed in the corrosive environment in cathode tube, because its environment is a vacuum, and in as the circulation behind the clean annealing of making raw-material middle operation, handling process, owing to be exposed in the atmosphere for a long time, sometimes get rusty and can not obtain product, therefore have antirust problem.
Summary of the invention
The material for shadow mask that the purpose of this invention is to provide a kind of high rigidity low heat expansion property is alloy and material for shadow mask with Fe-Ni, this alloy is behind the clean annealing as the raw-material middle operation of manufacturing, even also seldom get rusty because of circulating and carrying to be exposed in the atmosphere for a long time.
At above-mentioned purpose, the contriver has carried out conscientious research to behind the clean annealing as the raw-material middle operation of manufacturing repeatedly even be exposed to the condition that the also difficult Fe-Ni that gets rusty is an alloy in the atmosphere for a long time, and the result obtains following view.The contriver recognizes, behind clean annealing, go up at raw material (Fe-Ni is an alloy) easily and generate rust, and with general Fe-36Ni alloy phase ratio, the low heat expansion property Fe-36Ni alloy of low Mn more gets rusty easily.This understanding done further discover, in the Fe-Ni alloy sheets of low Mn, obviously high from its S concentration of the S concentration ratio body (inside) of surface in the zone of 150_ dark (top layer).As everyone knows, S is enriched in described skin section timesharing, and S can promote the dissolving of metal ion, gets rusty thereby bring out.Adopt method machinery, chemistry to remove described top layer to this alloy sheets and might eliminate above-mentioned phenomenon, but it is difficult carrying out this processing with technical scale.
So the inventor determines to suppress the enrichment of S on this alloy sheets top layer.
The inventor finds after deliberation, the enrichment of S to Fe-36Ni alloy sheets top layer do not take place in the alloy fully containing the high Fe-Ni of Mn amount, but in the Fe-36Ni alloy that contains the low low-thermal-expansion of Mn amount obvious enrichment takes place, find that also it is that the Mn of alloy is that inclusion is caught that S is contained the high Fe-Ni of Mn amount, but in the Fe-36Ni alloy that contains the low low-thermal-expansion of Mn amount, the enriching quantity of S and Mn content are inversely proportional to, and reduce with the increase of Mn content.Just in containing the low low bulk Fe-36Ni alloy of Mn amount, existing in a large number is not the S that inclusion is caught by Mn, and this S spreads close top layer and enrichment when clean annealing.
On the other hand, the inventor recognizes, produces in order to prevent such rust, and must control and generate Mn is the element M n of inclusion and the composition ratio of S, and this inventor is made further research.The pass that found that Mn and S ties up under the condition that satisfies Mn/S 〉=25 and is difficult to get rusty.But also find, when the S concentration from the alloy surface to 150_ in dark (top layer) zone is not more than into body part (inside) 20 times, also be difficult to especially get rusty.
Solidity to corrosion and the crystallization particle diameter of having known the Fe-Ni alloy in addition have substantial connection.Just the solidity to corrosion behind the clean annealing therewith the crystallization particle diameter of raw material substantial connection is arranged, specifically, the solidity to corrosion that reduces (grain size number (ASTM) become big) its material with the crystallization particle diameter improves.It is believed that this is that back boundary or grain area increases the cause that the diffusion length of S is elongated because the crystallization particle diameter diminishes.
Find the generation that will suppress to become rusty in addition, it also is effective adding the control non-metallic inclusion on the basis of above-mentioned countermeasure.This is because when generating acid-solubility MgO simplex inclusion or CaO simplex inclusion, solidity to corrosion worsens under the situation of dewfall in atmosphere, in addition, for the Fe-36Ni alloy that contains Nb, the MnO-FeO-SiO that produces in the formation that because of inhibited oxidation aluminium is inclusion
2-Nb
2O
5-MgO-Al
2O
3Contain in-CaO the system complex oxide that solidity to corrosion worsens equally under the situation of MgO simplex inclusion or CaO simplex inclusion.
On the other hand, when not containing MgO simplex inclusion or CaO simplex inclusion during the inclusion of alloy sheets is formed, solidity to corrosion is no problem, so have been found that in order to improve solidity to corrosion, removes in the non-metallic inclusion and contains MnO-FeO-SiO
2-Nb
2O
5-MgO-Al
2O
3Beyond-CaO the system complex oxide, also contain and be selected from silicon-dioxide (SiO
2), spinel (MgOAl
2O
3) or the oxide compound (Nb of niobium
2O
5) in one or more materials be effective.
The present invention finishes on the above-mentioned cognition basis, and its main contents are as follows.
Just, the present invention is alloy for the shadow mask raw material of corrosion resistance excellent with Fe-Ni, and this alloy contains C≤0.01 weight %; Si:0.01～0.1 weight %; Mn:0.01～0.1 weight %; Ni:35～37 weight %; Cr≤0.1 weight %; Nb:0.01～1.0 weight %; S≤0.0020 weight %; Al≤0.005 weight %; All the other are Fe and unavoidable impurities.
Alloy of the present invention preferably add to add up to total amount again in mentioned component be one or more elements of selecting from Ti, V, Zr, Ta, Hf and REM of 0.005～1.0%.
Preferred above-mentioned alloy of the present invention is that the pass of wherein Mn and S is the alloy of Mn/S 〉=25.
The present invention preferably maximum value of S concentration in the zone from described alloy surface to 150_ is not more than 20 times of body.
In alloy of the present invention, grain fineness number preferably is not less than the No.9 of ASTM grain size category.
Alloy of the present invention is containing MnO-FeO-SiO
2-Nb
2O
5-MgO-Al
2O
3Beyond-CaO the system complex oxide, preferably contain from silicon-dioxide (SiO
2), spinel (MgOAl
2O
3) and the oxide compound (Nb of niobium
2O
5) the middle non-metallic inclusion of selecting one or more materials to constitute.
The present invention also provides a kind of material for shadow mask that above-mentioned Fe-Ni is an alloy that contains, and 0.2% yield strength of described alloy is not less than 300N/mm
2, and 30～100 ℃ thermal expansivity is not more than 1.0 * 10
-6/ ℃, described material has high anti-corrosion, high rigidity and low heat expansion property.
Embodiment
Be that the reason of the afore mentioned rules of alloy composition describes to Fe-Ni of the present invention below.
C≤0.01 weight %
C is the element that helps to make the material reinforcement by solid solution and work hardening effect.Carbide was separated out in a large number when its content surpassed 0.01 weight %, and corrosive property, press formability, graphitization characteristic and low thermal expansion characteristics are worsened.Therefore C content is limited in the scope that is not more than 0.01 weight %.Preferably be not more than 0.005 weight %.
Si:0.01～0.1 weight %
Although when refining and modifying, need add be not less than 0.01 weight % Si as deoxidation material, thermal expansion will be increased, so be decided to be in the scope of 0.01～0.1 weight %.Be preferably 0.02～0.05 weight %.
Mn:0.01～0.1 weight %
Mn is useful as the solution strengthening element, need add 0.01 weight % during this external refining and modifying or greater than the Mn of 0.01 weight % as deoxidation material.When surpassing 0.1 weight % thermal expansion will be increased, so be decided to be in the scope of 0.01～0.1 weight % owing to its content.Be preferably 0.01～0.05 weight %.
Utilize adding Mn in addition, to generate Mn be inclusion, because the S that this Mn is an inclusion will spread can be fixed on clean annealing the time be an inclusion so need a certain amount of Mn.Therefore in the relation of this Mn and S, needs are controlled this relation and are made it satisfy Mn/S 〉=25 from the solidity to corrosion aspect.
Ni:35～37 weight %
Ni is the element that Fe-Ni alloy thermal expansion character is had a significant impact.Because thermal expansion minimum when Ni content is 36 weight % is so Ni is defined as 35～37 weight %.
Cr≤0.1 weight %
Cr significantly improves corrosion proof element, but since when surpassing 0.1 weight % thermal expansivity become big, graphitization characteristic worsens in addition, is not more than 0.1 weight % so be defined as.
Nb:0.01～1.0 weight %
Adding Nb in alloy can make 0.2% yield strength increase.It can make the remarkable refinement of grain fineness number in addition, the boundary or grain area is increased, and increased the diffusion length of S when clean annealing, suppresses the effect of S in the enrichment on surface thereby have.Also improve graphitization characteristic in the time of this external raising toughness, corrosive property, press formability.
Therefore in order to obtain above-mentioned effect, particularly, need to add the Nb of 0.01 weight % at least in order to have solidity to corrosion and to improve 0.2% yield strength.The preferred interpolation is not less than 0.10 weight %., toughness, press formability, low thermal expansion characteristics are reduced, so be defined as 0.01～1.0 weight % owing to add when surpassing 1.0 weight %.
S≤0.0020 weight %
S is the element that makes alloy characteristicization of the present invention, and is the element that solidity to corrosion is had a significant impact.When S content surpassed 0.0020 weight %, the S diffusion was near the near surface of raw material behind the clean annealing, and the S concentration ratio body from the raw material surface to 150_ in the zone of dark (upper layer) significantly increases, thereby solidity to corrosion is reduced.Therefore S content is decided to be and is not more than 0.0020 weight %, preferably is not more than 0.0010 weight %.
But require to make the relation of S and Mn satisfy Mn/S 〉=25.
Al≤0.005 weight %
Because Al is active more intense element, thus its content when high surface of steel plate oxidation can preferentially take place, thereby hinder the greying characteristic.Increasing Al in addition is that oxide compound is then harmful to corrodibility.When particularly surpassing 0.005 weight % low thermal expansion characteristics will be reduced, be not more than 0.005 weight % so be defined as owing to Al.
Ti, V, Zr, Ta, Hf and REM
Ti, V, Zr, Ta, Hf and REM form carbide and nitride respectively and the element favourable to grain refining by combining with C and N, and generate sulfide and favourable to solidity to corrosion by combining with S.Optional one or more elements from Ti, V, Zr, Ta, Hf and REM, if separately or add up to and be no more than 0.005 weight %, then above-mentioned effect is insufficient.During on the other hand more than 1.0 weight %,, be 0.005～1.0 weight % so limit its content owing to the solid solution capacity of these elements has too much reduced low thermal expansion characteristics.
Mn/S≥25
Mn and S need adjust in the scope that satisfies the following formula relation in Fe-Ni alloy of the present invention:
Mn/S≥25
Just adjust Mn content corresponding to S content, with Mn control to solidity to corrosion have baneful influence S content be very important.Just Mn/S less than 25 situation under, Mn is that the S content of catching in the inclusion is few, thus during clean annealing S near the top layer, spread, enrichment, thereby get rusty easily.The upper limit of Mn/S is preferably about 70.
Secondly in Fe-Ni alloy of the present invention, must make the S concentration in the zone dark be not more than about 20 times of body from the alloy sheets surface to 150_.Its reason is the degree of the S concentration enrichment in the top layer when surpassing 20 times of body (main body) S concentration, can promote the metal ion dissolving and brings out and get rusty.The concentration of preferred S is not more than 18 times.
Grain fineness number
The present invention is except that having above-mentioned composition, and the No.9 that makes grain fineness number be not less than the ASTM grain size category also is effective.According to the inventor's research, Fe-Ni is that the solidity to corrosion behind the alloy clean annealing and the crystallization particle diameter of raw material have substantial connection, mainly is to improve with the diminish solidity to corrosion of (it is big that grain size number becomes) this material of crystallization particle diameter.Because 0.2% yield strength also has substantial connection with the crystallization particle diameter, so will obtain excellent solidity to corrosion and rigidity, preferred grain fineness number is not less than ASTM No.9 in addition.
Non-metallic inclusion
On the basis of above-mentioned composition design and grain fineness number adjustment, the present invention also carries out the control to non-metallic inclusion.That is to say that the non-metallic inclusion in the alloy of the present invention removes and contains MnO-FeO-SiO
2-Nb
2O
5-MgO-Al
2O
3Beyond-CaO the system complex oxide, also contain and be selected from SiO
2, MgOAl
2O
3And Nb
2O
5In one or more materials.According to the inventor's research, when generating acid-solubility MgO simplex inclusion, CaO simplex inclusion, solidity to corrosion worsens under the situation of dewfall in atmosphere.In addition, in containing the Fe-36Ni alloy of Nb, when because of controlled oxidation aluminium being the MnO-FeO-SiO that inclusion formation produces
2-Nb
2O
5-MgO-Al
2O
3When containing MgO simplex inclusion or CaO simplex inclusion in-the CaO system complex oxide, solidity to corrosion worsens equally.On the other hand, the inclusion composition that does not contain these MgO simplex inclusiones or CaO simplex inclusion can not produce the problem of solidity to corrosion aspect, forms so described inclusion is had as above.
Embodiment
With embodiment alloy action effect of the present invention is elaborated below, but the present invention only is confined to following embodiment.
Be grouped into each composition of adjusting alloy by the one-tenth shown in the aftermentioned table 1, make test materials, this test materials is made ingot with the dissolving of atmosphere induction furnace, then this ingot is carried out forge hot processing under 1000～1150 ℃ temperature, carry out hot rolling to be not less than 80% rolling rate of compression, then under 900 ℃, at 30%H
2+ N
2, dew point is for carrying out solutionizing thermal treatment 60 seconds in-40 ℃ the atmosphere.Slow cooling then obtains the Fe-Ni alloy sheets of thickness 0.12mm.
Thermal expansivity in the table is to measure in the scope of normal temperature to 300 ℃, obtaining 30～100 ℃ mean thermal expansion coefficients, 0.2% yield strength of having utilized stretching test measurement.The surface of slave plate is carried out sputter with the Auger electron spectrum analytical equipment from spaced surface 50_ to the maximum value of the interior S enriching quantity in the dark zone of 150_ in addition, carry out ultimate analysis at every turn, calculate the atomic percent of S, and represent with this atomic percent and the ratio (so-called body is meant in the present embodiment raw material is made the as a whole value of carrying out chemical analysis and obtaining) of body.Estimate solidity to corrosion with the rust area ratio that exposes in the outside atmosphere exposure test under the back generation corrosion situation.The rust area ratio is not less than 0.5% test materials, owing to be exposed to for a long time in the atmosphere and will get rusty behind the clean annealing as operation in the middle of the raw material manufacturing, so uncomfortable cooperation raw material, these the results are shown in table 2.
As can be seen from Table 2, the alloy that is suitable in the present invention we can say to have enough performances aspect solidity to corrosion, rigidity and the low thermal expansion characteristics.0.2% yield strength that is to say test materials of the present invention is not less than 300N/mm
2, promptly having high rigidity, thermal expansivity is not more than 1.0 * 10
-6/ ℃, promptly have low heat expansion property.Rust area ratio after this external weather exposure test is not more than 0.5%, promptly has excellent solidity to corrosion.In contrast, contrast material 19,20 is because the S content of body is many, and solidity to corrosion worsens.Solidity to corrosion worsens because its inclusion morphology contains MgO mere body or CaO mere body for contrast material 21,22 in addition.Contrast material 23 worsens owing to the crystallization particle diameter makes solidity to corrosion, rigidity greatly.Contrast material 24 is because the maximum value of the surperficial S enriching quantity in the 150_ zone of slave plate is not less than 20, so solidity to corrosion worsens.In addition, be above-mentioned Fe-Ni of the present invention that the shadow mask that alloy is made as material for shadow mask can non-corrosive behind clean annealing.Particularly, can make the shadow mask raw material of high rigidity and low heat expansion property, wherein, before shadow mask was shaped, the quality of this shadow mask raw material was that 0.2% yield strength is not less than 300N/mm
2, thermal expansivity is not more than 1.0 * 10
-6/ ℃.
[table 1]
| The alloy numbering | Chemical ingredients | Inclusion morphology | ||||||||||
| ??C | ??Si | ????Mn | ??Ni | ??Cr | ??Nb | ????S | ??Al | Other | ??Mn/S | |||
| The invention alloy | ??1 | ??0.003 | ??0.03 | ??0.01 | ??35.89 | ??0.01 | ??0.17 | ??0.0003 | ??0.002 | ????- | ????33 | ????1 |
| ??2 | ??0.004 | ??0.04 | ??0.03 | ??35.96 | ??0.02 | ??0.18 | ??0.0008 | ??0.001 | ????- | ????38 | ????1 | |
| ??3 | ??0.003 | ??0.03 | ??0.05 | ??36.01 | ??0.01 | ??0.22 | ??0.0010 | ??0.003 | ????- | ????50 | ????1 | |
| ??4 | ??0.003 | ??0.04 | ??0.03 | ??35.97 | ??0.05 | ??0.21 | ??0.0012 | ??0.002 | ????- | ????25 | ????1 | |
| ??5 | ??0.003 | ??0.08 | ??0.08 | ??35.89 | ??0.03 | ??0.20 | ??0.0012 | ??0.004 | ????- | ????67 | ????1 | |
| ??6 | ??0.004 | ??0.05 | ??0.05 | ??35.97 | ??0.04 | ??0.02 | ??0.0015 | ??0.003 | ????- | ????33 | ????1 | |
| ??7 | ??0.005 | ??0.02 | ??0.03 | ??35.95 | ??0.05 | ??0.50 | ??0.0010 | ??0.001 | ????- | ????30 | ????1 | |
| ??8 | ??0.003 | ??0.03 | ??0.04 | ??36.02 | ??0.01 | ??0.95 | ??0.0013 | ??0.004 | ????- | ????31 | ????1 | |
| ??9 | ??0.004 | ??0.03 | ??0.03 | ??36.03 | ??0.01 | ??0.19 | ??0.0012 | ??0.003 | ????Ti0.05 | ????25 | ????1 | |
| ??10 | ??0.003 | ??0.05 | ??0.05 | ??36.20 | ??0.05 | ??0.15 | ??0.0018 | ??0.002 | ????V0.07 | ????28 | ????1 | |
| ??11 | ??0.002 | ??0.06 | ??0.02 | ??36.15 | ??0.04 | ??0.18 | ??0.0008 | ??0.003 | ????Ti0.03 ????V0.01 | ????25 | ????1 | |
| ??12 | ??0.003 | ??0.02 | ??0.03 | ??36.25 | ??0.03 | ??0.16 | ??0.0011 | ??0.004 | ????Ta0.05 | ????27 | ????1 | |
| ??13 | ??0.003 | ??0.03 | ??0.04 | ??36.33 | ??0.02 | ??0.21 | ??0.0015 | ??0.001 | ????Zr0.08 | ????27 | ????1 | |
| ??14 | ??0.004 | ??0.03 | ??0.05 | ??35.98 | ??0.05 | ??0.18 | ??0.0010 | ??0.003 | ????Ta0.03 ????Zr0.07 | ????50 | ????1 | |
| ??15 | ??0.005 | ??0.03 | ??0.02 | ??36.62 | ??0.06 | ??0.20 | ??0.0008 | ??0.002 | ????Hf0.05 | ????25 | ????1 | |
| ??16 | ??0.003 | ??0.04 | ??0.03 | ??35.99 | ??0.01 | ??0.21 | ??0.0012 | ??0.003 | ????REM0.05 | ????25 | ????1 | |
| ??17 | ??0.003 | ??0.04 | ??0.03 | ??35.95 | ??0.08 | ??0.19 | ??0.0012 | ??0.002 | ????- | ????25 | ????2 | |
| ??18 | ??0.004 | ??0.03 | ??0.03 | ??36.26 | ??0.03 | ??0.21 | ??0.0011 | ??0.002 | ????- | ????27 | ????3 | |
| Comparative alloy | ??19 | ??0.004 | ??0.02 | ??0.02 | ??36.00 | ??0.02 | ??0.10 | ??0.0022 | ??0.004 | ????- | ????9 | ????1 |
| ??20 | ??0.004 | ??0.03 | ??0.03 | ??36.07 | ??0.04 | ??0.21 | ??0.0030 | ??0.003 | ????- | ????10 | ????1 | |
| ??21 | ??0.004 | ??0.05 | ??0.04 | ??35.85 | ??0.05 | ??0.18 | ??0.0016 | ??0.002 | ????- | ????25 | ????4 | |
| ??22 | ??0.003 | ??0.08 | ??0.06 | ??36.05 | ??0.01 | ??0.20 | ??0.0020 | ??0.002 | ????- | ????30 | ????5 | |
| ??23 | ??0.003 | ??0.03 | ??0.05 | ??35.97 | ??0.04 | ??0.02 | ??0.0015 | ??0.003 | ????- | ????33 | ????1 | |
| ??24 | ??0.003 | ??0.02 | ??0.05 | ??35.96 | ??0.01 | ??0.22 | ??0.0020 | ??0.002 | ????- | ????25 | ????1 | |
Inclusion morphology 1:MnO-FeO-SiO
2-Nb
2O
5-MgO-Al
2O
3-CaO combined oxidation system
Inclusion morphology 2:MnOAl
2O
3-Nb
2O
5System
Inclusion morphology 3:SiO
2-Nb
2O
5System
Inclusion morphology 4:SiO
2-MgO system+MgO simplex
Inclusion morphology 5:Al
2O
3-CaO system+CaO simplex
[table 2]
| The alloy numbering | 0.2% yield strength (N/mm 2) | Thermal expansivity (* 10 -6/℃) | Grain fineness number No. | The S content (A) of body | S concentration maximum value (B) from the top layer to 150_ | Relative proportion (B/A) | Rust area ratio (%) after the weather exposure test | |
| The invention alloy | ??1 | ????315 | ????0.81 | ????11 | ????0.0003 | ????0.0050 | ????16.8 | ????0.26 |
| ??2 | ????316 | ????0.84 | ????10 | ????0.0008 | ????0.0013 | ????16.1 | ????0.24 | |
| ??3 | ????320 | ????0.88 | ????11 | ????0.0010 | ????0.0152 | ????15.2 | ????0.25 | |
| ??4 | ????318 | ????0.89 | ????10 | ????0.0012 | ????0.0218 | ????18.2 | ????0.30 | |
| ??5 | ????319 | ????0.88 | ????11 | ????0.0012 | ????0.0160 | ????13.3 | ????0.24 | |
| ??6 | ????305 | ????0.83 | ????9 | ????0.0015 | ????0.0260 | ????17.3 | ????0.26 | |
| ??7 | ????340 | ????0.92 | ????10 | ????0.0010 | ????0.0170 | ????17.0 | ????0.27 | |
| ??8 | ????351 | ????0.95 | ????10 | ????0.0013 | ????0.0224 | ????17.2 | ????0.29 | |
| ??9 | ????321 | ????0.88 | ????11 | ????0.0012 | ????0.0223 | ????18.6 | ????0.31 | |
| ??10 | ????318 | ????0.85 | ????10 | ????0.0018 | ????0.0311 | ????17.3 | ????0.32 | |
| ??11 | ????316 | ????0.87 | ????11 | ????0.0008 | ????0.0146 | ????18.3 | ????0.31 | |
| ??12 | ????322 | ????0.85 | ????11 | ????0.0011 | ????0.0193 | ????17.5 | ????0.30 | |
| ??13 | ????319 | ????0.89 | ????11 | ????0.0015 | ????0.0252 | ????16.8 | ????0.30 | |
| ??14 | ????317 | ????0.87 | ????11 | ????0.0010 | ????0.0153 | ????15.3 | ????0.27 | |
| ??15 | ????335 | ????0.93 | ????11 | ????0.0008 | ????0.0145 | ????18.1 | ????0.30 | |
| ??16 | ????309 | ????0.86 | ????11 | ????0.0012 | ????0.0226 | ????18.8 | ????0.32 | |
| ??17 | ????312 | ????0.88 | ????11 | ????0.0012 | ????0.0223 | ????18.6 | ????0.33 | |
| ??18 | ????319 | ????0.89 | ????11 | ????0.0011 | ????0.0187 | ????17.0 | ????0.30 | |
| Comparative alloy | ??19 | ????319 | ????0.85 | ????10 | ????0.0022 | ????0.1118 | ????50.8 | ????0.97 |
| ??20 | ????315 | ????0.88 | ????11 | ????0.0030 | ????0.1458 | ????48.6 | ????0.92 | |
| ??21 | ????316 | ????0.83 | ????10 | ????0.0025 | ????0.0770 | ????30.8 | ????0.60 | |
| ??22 | ????319 | ????0.85 | ????11 | ????0.0035 | ????0.0990 | ????25.7 | ????0.52 | |
| ??23 | ????290 | ????0.80 | ????7 | ????0.0015 | ????0.0260 | ????17.3 | ????0.51 | |
| ??24 | ????320 | ????0.88 | ????11 | ????0.0020 | ????0.0430 | ????21.5 | ????0.50 | |
Industrial applicibility
As described above described, adopt when of the present invention, it is alloy with Fe-Ni that the shadow mask of a kind of high corrosion-resistant, high rigidity and low heat expansion can be provided, even this alloy is exposed in the atmosphere in as the circulation behind the bright annealing of operation in the middle of the raw material manufacturing and handling process, also be difficult to get rusty. Therefore can be reliably and colour television set cathode-ray tube and the display material for shadow mask of clear image be provided expeditiously.
Claims (7)
1. the shadow mask raw material of corrosion resistance excellent is an alloy with Fe-Ni, and described alloy contains C≤0.01 weight %; Si:0.01～0.1 weight %; Mn:0.01～0.1 weight %; Ni:35～37 weight %; Cr≤0.1 weight %; Nb:0.01～1.0 weight %; S≤0.0020 weight %; Al≤0.005 weight %; All the other are Fe and unavoidable impurities.
2. shadow mask raw material as claimed in claim 1 is an alloy with Fe-Ni, it is characterized in that, the pass that makes Mn and S is Mn/S 〉=25.
3. shadow mask raw material as claimed in claim 1 or 2 is an alloy with Fe-Ni, it is characterized in that, adding in the composition of described composition again and adding up to total amount is any one or more element of selecting from Ti, V, Zr, Ta, Hf and REM of 0.005～1.0 weight %.
4. be alloy as each described shadow mask raw material in the claim 1～3 with Fe-Ni, it is characterized in that, for the alloy with composition of each described composition in the claim 1～3, the maximum value of the S concentration in the zone that will be from described alloy surface to 150_ is controlled at 20 times that are not more than body.
5. be alloy as each described shadow mask raw material in the claim 1～4 with Fe-Ni, it is characterized in that the grain fineness number of this alloy is not less than the No.9 of ASTM grain size number.
6. be alloy as each described shadow mask raw material in the claim 1～5 with Fe-Ni, it is characterized in that described alloy removes and contains MnO-FeO-SiO
2-Nb
2O
5-MgO-Al
2O
3Beyond-CaO the system complex oxide, also containing and comprising silicon-dioxide is SiO
2, spinel is MgOAl
2O
3With the oxide compound of niobium be Nb
2O
5In the non-metallic inclusion of one or more materials.
7. have the material for shadow mask of high anti-corrosion, high rigidity and low-thermal-expansion, it is characterized in that, it contains by each described Fe-Ni in the claim 1～6 is alloy, and the characteristic of described alloy is that 0.2% yield strength is not less than 300N/mm
2, and 30～100 ℃ thermal expansivity is not more than 1.0 * 10
-6/ ℃.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP323145/2001 | 2001-10-22 | ||
| JP2001323145A JP3854121B2 (en) | 2001-10-22 | 2001-10-22 | Fe-Ni alloy for shadow mask material with excellent corrosion resistance and shadow mask material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1571857A true CN1571857A (en) | 2005-01-26 |
| CN100343405C CN100343405C (en) | 2007-10-17 |
Family
ID=19140077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028207742A Expired - Fee Related CN100343405C (en) | 2001-10-22 | 2002-10-16 | Fe-Ni based alloy for shadow mask raw material excellent in corrosion resistance and shadow mask material |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20040238076A1 (en) |
| EP (1) | EP1445341A4 (en) |
| JP (1) | JP3854121B2 (en) |
| KR (1) | KR100595393B1 (en) |
| CN (1) | CN100343405C (en) |
| WO (1) | WO2003035920A1 (en) |
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|---|---|---|---|---|
| KR101668529B1 (en) | 2014-12-23 | 2016-10-31 | 주식회사 포스코 | Encapsulant for packaging an organic electric device for display with low thermal expansion coefficient |
| KR101677352B1 (en) | 2014-12-26 | 2016-11-18 | 주식회사 포스코 | Encapsulant for packaging an organic electric device for display with low thermal expansion coefficient |
| AU2020413417B2 (en) * | 2019-12-27 | 2024-02-01 | Nippon Steel Corporation | Alloy |
| CN115976395A (en) * | 2022-12-28 | 2023-04-18 | 北冶功能材料(江苏)有限公司 | Preparation method of invar alloy for metal mask |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US205296A (en) * | 1878-06-25 | Improvement in cutting instruments or tools | ||
| US5207844A (en) * | 1990-03-22 | 1993-05-04 | Nkk Corporation | Method for manufacturing an Fe-Ni cold-rolled sheet excellent in cleanliness and etching pierceability |
| JP3465171B2 (en) * | 1992-01-09 | 2003-11-10 | 日本冶金工業株式会社 | Amber alloy for shadow mask |
| JP3150831B2 (en) * | 1993-09-30 | 2001-03-26 | 日本冶金工業株式会社 | High Young's modulus low thermal expansion Fe-Ni alloy |
| JP3151100B2 (en) * | 1994-01-14 | 2001-04-03 | 日鉱金属株式会社 | Fe-Ni alloy shadow mask material |
| FR2728724B1 (en) * | 1994-12-27 | 1997-01-24 | Imphy Sa | METHOD FOR MANUFACTURING AN IRON-NICKEL ALLOY SHADOW MASK |
| JP3426426B2 (en) * | 1995-09-28 | 2003-07-14 | 日鉱金属株式会社 | Fe-Ni alloy for electron gun parts and stamping parts for electron gun press |
| US5946380A (en) * | 1997-11-06 | 1999-08-31 | At&T Corp. | Communications system and method with call expenditure control |
| JP3450711B2 (en) * | 1998-07-02 | 2003-09-29 | 日本冶金工業株式会社 | Fe-Ni lead frame alloy with excellent punching characteristics |
| JP2000096188A (en) * | 1998-09-21 | 2000-04-04 | Nisshin Steel Co Ltd | Iron - nickel alloy with low coefficient of thermal expansion and excellent hot workability, and its manufacture |
| JP3288656B2 (en) * | 1999-07-28 | 2002-06-04 | 日本冶金工業株式会社 | Fe-Ni shadow mask material |
| JP2001181796A (en) * | 1999-12-28 | 2001-07-03 | Hitachi Metals Ltd | Fe-Ni-Co ALLOY EXCELLENT IN ETCHING CHARACTERISTIC AND LOW THERMAL EXPANSION CHARACTERISTIC, AND SHADOW MASK EXCELLENT IN ETCHING PIT SHAPE CHARACTERISTIC |
| EP1134300A3 (en) * | 2000-03-17 | 2002-05-22 | Hitachi Metals, Ltd. | Fe-Ni alloy |
| JP3802326B2 (en) * | 2000-08-30 | 2006-07-26 | 日鉱金属株式会社 | Manufacturing method for preventing hot rolling crack of Fe-Ni alloy material having resistance to drop impact deformation and low thermal expansion |
| JP4240823B2 (en) * | 2000-09-29 | 2009-03-18 | 日本冶金工業株式会社 | Method for producing Fe-Ni permalloy alloy |
| WO2002042508A1 (en) * | 2000-11-21 | 2002-05-30 | Nippon Yakin Kogyo Co., Ltd. | Iron-nickel alloy material for shadow mask with excellent suitability for etching |
| EP1403393A4 (en) * | 2001-07-05 | 2005-01-05 | Jfe Steel Corp | Thin alloy sheet of low thermal expansion and shadow mask using the same |
-
2001
- 2001-10-22 JP JP2001323145A patent/JP3854121B2/en not_active Expired - Fee Related
-
2002
- 2002-10-16 WO PCT/JP2002/010718 patent/WO2003035920A1/en active Application Filing
- 2002-10-16 KR KR1020047005785A patent/KR100595393B1/en not_active IP Right Cessation
- 2002-10-16 EP EP02777848A patent/EP1445341A4/en not_active Withdrawn
- 2002-10-16 CN CNB028207742A patent/CN100343405C/en not_active Expired - Fee Related
- 2002-10-16 US US10/488,257 patent/US20040238076A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003035920A1 (en) | 2003-05-01 |
| JP3854121B2 (en) | 2006-12-06 |
| KR100595393B1 (en) | 2006-06-30 |
| US20040238076A1 (en) | 2004-12-02 |
| CN100343405C (en) | 2007-10-17 |
| JP2003129185A (en) | 2003-05-08 |
| EP1445341A1 (en) | 2004-08-11 |
| KR20040045877A (en) | 2004-06-02 |
| EP1445341A4 (en) | 2004-12-15 |
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