IL22399A - Production of metal products from refined molten metal - Google Patents
Production of metal products from refined molten metalInfo
- Publication number
- IL22399A IL22399A IL22399A IL2239964A IL22399A IL 22399 A IL22399 A IL 22399A IL 22399 A IL22399 A IL 22399A IL 2239964 A IL2239964 A IL 2239964A IL 22399 A IL22399 A IL 22399A
- Authority
- IL
- Israel
- Prior art keywords
- metal
- strip
- powder
- particles
- chamber
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 112
- 239000002184 metal Substances 0.000 title claims description 112
- 238000004519 manufacturing process Methods 0.000 title claims description 33
- 239000000843 powder Substances 0.000 claims description 131
- 238000000034 method Methods 0.000 claims description 99
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 96
- 239000002245 particle Substances 0.000 claims description 45
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 40
- 229910052799 carbon Inorganic materials 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 17
- 239000012535 impurity Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002923 metal particle Substances 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000005275 alloying Methods 0.000 claims description 7
- 238000000889 atomisation Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000007872 degassing Methods 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 238000007596 consolidation process Methods 0.000 claims 6
- 239000004615 ingredient Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 66
- 230000008569 process Effects 0.000 description 42
- 229910052757 nitrogen Inorganic materials 0.000 description 33
- 238000010438 heat treatment Methods 0.000 description 31
- 239000000047 product Substances 0.000 description 30
- 238000004458 analytical method Methods 0.000 description 18
- 238000000137 annealing Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 230000008901 benefit Effects 0.000 description 12
- 238000006722 reduction reaction Methods 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 11
- 238000002156 mixing Methods 0.000 description 11
- 230000009467 reduction Effects 0.000 description 11
- 238000011282 treatment Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 239000007795 chemical reaction product Substances 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000007792 addition Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012216 screening Methods 0.000 description 6
- 238000009628 steelmaking Methods 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 238000005056 compaction Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 239000003599 detergent Substances 0.000 description 5
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000012190 activator Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000004320 controlled atmosphere Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000905957 Channa melasoma Species 0.000 description 1
- VGMFHMLQOYWYHN-UHFFFAOYSA-N Compactin Natural products OCC1OC(OC2C(O)C(O)C(CO)OC2Oc3cc(O)c4C(=O)C(=COc4c3)c5ccc(O)c(O)c5)C(O)C(O)C1O VGMFHMLQOYWYHN-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- AJLFOPYRIVGYMJ-UHFFFAOYSA-N SJ000287055 Natural products C12C(OC(=O)C(C)CC)CCC=C2C=CC(C)C1CCC1CC(O)CC(=O)O1 AJLFOPYRIVGYMJ-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- AJLFOPYRIVGYMJ-INTXDZFKSA-N mevastatin Chemical compound C([C@H]1[C@@H](C)C=CC2=CCC[C@@H]([C@H]12)OC(=O)[C@@H](C)CC)C[C@@H]1C[C@@H](O)CC(=O)O1 AJLFOPYRIVGYMJ-INTXDZFKSA-N 0.000 description 1
- BOZILQFLQYBIIY-UHFFFAOYSA-N mevastatin hydroxy acid Natural products C1=CC(C)C(CCC(O)CC(O)CC(O)=O)C2C(OC(=O)C(C)CC)CCC=C21 BOZILQFLQYBIIY-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- -1 oxides Chemical class 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005029 sieve analysis Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Soft Magnetic Materials (AREA)
- Metal Rolling (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US321246A US3281893A (en) | 1963-11-04 | 1963-11-04 | Continuous production of strip and other metal products from molten metal |
| US402480A US3334408A (en) | 1964-10-08 | 1964-10-08 | Production of powder, strip and other metal products from refined molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL22399A true IL22399A (en) | 1968-04-25 |
Family
ID=26982881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL22399A IL22399A (en) | 1963-11-04 | 1964-11-03 | Production of metal products from refined molten metal |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4917949B1 (enrdf_load_stackoverflow) |
| DE (1) | DE1458127A1 (enrdf_load_stackoverflow) |
| ES (1) | ES305622A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1091101A (enrdf_load_stackoverflow) |
| IL (1) | IL22399A (enrdf_load_stackoverflow) |
| NL (1) | NL6412753A (enrdf_load_stackoverflow) |
| SE (1) | SE315370B (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0124541B1 (en) * | 1982-10-28 | 1988-05-11 | BALASSA, Oscar | Processing of metal |
| JP3858275B2 (ja) * | 1997-08-29 | 2006-12-13 | セイコーエプソン株式会社 | アトマイズ法による金属粉末製造方法およびその装置 |
| GB2393451A (en) * | 2002-09-26 | 2004-03-31 | Qinetiq Ltd | A Method of Manufacture of Metal Alloy Sheet |
| JP7162171B2 (ja) * | 2018-12-17 | 2022-10-28 | パナソニックＩｐマネジメント株式会社 | 粉体焼結装置 |
| CN111593286B (zh) * | 2020-05-09 | 2022-06-03 | 北京赛亿科技有限公司 | 一种高性能粉末钢热喷射沉积成型工艺 |
| CN112620639B (zh) * | 2020-11-18 | 2023-02-07 | 江西鑫润材料科技有限公司 | 一种合金粉末制造设备 |
| CN117884640B (zh) * | 2023-12-15 | 2024-12-13 | 江门市宏佳新材料科技有限公司 | 一种烧结金属多孔材料用不锈钢粉末的制备方法 |
-
1964
- 1964-01-04 JP JP39062447A patent/JPS4917949B1/ja active Pending
- 1964-11-02 GB GB44642/64A patent/GB1091101A/en not_active Expired
- 1964-11-03 IL IL22399A patent/IL22399A/en unknown
- 1964-11-03 NL NL6412753A patent/NL6412753A/xx unknown
- 1964-11-03 SE SE13225/64A patent/SE315370B/xx unknown
- 1964-11-04 DE DE19641458127 patent/DE1458127A1/de active Pending
-
1965
- 1965-02-01 ES ES0305622A patent/ES305622A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1091101A (en) | 1967-11-15 |
| DE1458127A1 (de) | 1968-12-05 |
| JPS4917949B1 (enrdf_load_stackoverflow) | 1974-05-07 |
| ES305622A1 (es) | 1965-05-01 |
| DE1458127B2 (enrdf_load_stackoverflow) | 1970-10-29 |
| SE315370B (enrdf_load_stackoverflow) | 1969-09-29 |
| NL6412753A (enrdf_load_stackoverflow) | 1965-05-06 |
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