JPH0227063B2 - - Google Patents
Info
- Publication number
- JPH0227063B2 JPH0227063B2 JP62261879A JP26187987A JPH0227063B2 JP H0227063 B2 JPH0227063 B2 JP H0227063B2 JP 62261879 A JP62261879 A JP 62261879A JP 26187987 A JP26187987 A JP 26187987A JP H0227063 B2 JPH0227063 B2 JP H0227063B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- sio
- powder
- cao
- calcium silicate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 44
- 239000000378 calcium silicate Substances 0.000 claims description 27
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 27
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 11
- 238000009749 continuous casting Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 description 49
- 239000002994 raw material Substances 0.000 description 37
- 239000000203 mixture Substances 0.000 description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 230000008018 melting Effects 0.000 description 14
- 238000002844 melting Methods 0.000 description 14
- 239000002893 slag Substances 0.000 description 12
- 230000005484 gravity Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000011398 Portland cement Substances 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 7
- 230000004907 flux Effects 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 229910052681 coesite Inorganic materials 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 229910052682 stishovite Inorganic materials 0.000 description 5
- 229910052905 tridymite Inorganic materials 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 239000010436 fluorite Substances 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000010456 wollastonite Substances 0.000 description 4
- 229910052882 wollastonite Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910001610 cryolite Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 1
- -1 Li 2 CO 3 Chemical compound 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910001678 gehlenite Inorganic materials 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
ç£æ¥äžã®å©çšåé
æ¬çºæã¯éŒã®é£ç¶é³é çšé³åæ·»å å€ã«é¢ããã
åŸæ¥ã®æè¡ïŒœ
éŒã®é£ç¶é³é çšé³åæ·»å å€ïŒä»¥äžãããŠããŒãš
ç¥ç§°ããïŒã¯ãã«ãã©ã³ãã»ã¡ã³ããé»ãªã³ã¹ã©
ã°ããŠãªã©ã¹ããã€ããªã©ãäž»åæãšããå¿ èŠã«
å¿ããŠSiO2質åæãå ããæŽã«ãœãŒãç°ãç¡Œç ã
æ°·æ¶ç³ãããåãœãŒãããã¿ã«ç³ãªã©ã®ãã©ãã¯
ã¹åæã溶èé床調æŽå€ãšããŠã®ççŽ è³ªåæãã
ãªã€ãŠããã ããŠããŒã¯é³åå ãžæ³šå ¥ããã溶éŒè¡šé¢äžãžæ·»
å ãããçš®ã ã®åœ¹å²ãæãããªããæ¶è²»ãããã
ç¹ã«ãé³åãšååºã·ãšã«ã®æœ€æ»ã溶éŒäžãã
æµ®äžããä»åšç©ã®æº¶è§£ãåžåã溶éŒã®ä¿æž©ãé
èŠãªåœ¹å²ã§ããã æåœã«ãããé£ç¶é³é æè¡ã®é²å±ã¯ç®èŠãŸã
ããHCRïŒããããã€ãŒãžïŒãHDRïŒããããã€
ã¬ã¯ãããŒãªã³ã°ïŒæ¯çã®åäžãé«éé³é åãªã©
ãç©æ¥µçã«é²ããããŠãããåŸã€ãŠãé³çå質ã
ææ¥å®å®ã«åœ±é¿ããããŠããŒã«å¯ŸããèŠæ±ãäžæ®µ
ãšå³ãããã®ããããæ±ããããããŠããŒã¯å€çš®
å€æ§ãšãªããåŸæ¥ãšå€§ããç°ãªã€ãå ·åç¹æ§ãå¿
èŠãšãªã€ãŠããããã®ãããããŠããŒã®è»åç¹ã
èç¹ãç²åºŠãè¡šé¢åŒµåãçµæ¶å枩床ãªã©ã®ç¹æ§ã
æ¯é ããååŠçµæã¯ããåºç¯å²ãšãªããç¹ã«ãã
ããã®ç¹æ§ã«é倧ãªåœ±é¿ãäžããCaOïŒSiO2é
éæ¯ïŒä»¥äžãCaOïŒSiO2ãšç¥ç§°ããïŒã®èª¿æŽã¯
極ããŠéèŠã§ããã åè¿°ããããŠããŒã®åœ¹å²ã®ãã¡ãåã³ã¯è»
åç¹ãç²åºŠãªã©ã®ç¹æ§ã調æŽããããšãæéèŠã§
ãããååŠçµæã®éžå®ãéèŠã§ãããäžæ¹ãã®
溶éŒä¿æž©ã«ã€ããŠã¯ãççŽ è³ªåæã«ãã€ãŠèª¿æŽã
ãã溶èé床ã嵩æ¯éãæ¡ããæ§ãªã©ã®çŽäœç¹æ§
ãéèŠã§ããã çºæã解決ããããšããåé¡ç¹ïŒœ åŸæ¥ãããŠããŒã®åºæåæãšããŠãã«ãã©ã³ã
ã»ã¡ã³ããé»ãªã³ã¹ã©ã°ãåæã¹ã©ã°ããŠãªã©ã¹
ããã€ããªã©ã䜿çšãããŠããããããããäžé·
äžçãæããŠãããããŠããŒã®åºæãšããŠå®å šãš
ã¯èšãé£ããäŸãã°ããã«ãã©ã³ãã»ã¡ã³ãã¯æ¯
èŒçååŠæåãå®å®ããŠããç¹åŸŽããããæŽã«ã
CaOïŒSiO2ãä»ã®åºæåæãããé«ããããã
ãŒã©ã€ãçŽãªã©ã®è»œéSiO2質åæãšã®çµã¿åã
ãã«ããäœåµ©æ¯éã§ãä¿æž©æ§ãè¯ãäžã€CaOïŒ
SiO2ãåºç¯å²ã«èšå®ããããšãå¯èœã§ãããã
ããããã«ãã©ã³ãã»ã¡ã³ãã¯ïŒã15ééïŒ ã®
4CaOã»Al2O3ã»Fe2O3ãå«ããããããŠããŒãé
åžžïŒïŒ ééïŒ ååŸã®Fe2O3ãå«æãããããŠããŒ
äžã®Fe2O3ã¯éŒæåïŒäŸãã°AlïŒãšåå¿ããéŒã
æ±æããåå ãšãªããšåæã«ããŠããŒã®ç¹æ§ãå€
åããããããå®å®ãã最æ»æ§ãåŸãããªããæŽ
ã«ããã«ãã©ã³ãã»ã¡ã³ããåºæãšããããŠããŒ
ã¯æ°Žååå¿ããããããéåžžæ¡çšãããŠããå æ°Ž
âæ··ç·ŽâæŒåºé ç²æ³ãªã©ã«ããé¡ç²åãå°é£ã§ã
ãã äžæ¹ãé»ãªã³ã¹ã©ã°ãé»ãªã³ã¹ã©ã°é¡ä»¥çµæã®
åæã¹ã©ã°ã¯æº¶èâæ°Žç ç©ã§ãããããæååäž
æ§ã«åªããéæ¶è³ªåæã§ãããé¡ç²åã容æã§ã
ããããããæ¯èŒçäœCaOïŒSiO2ïŒ0.9ã1.15ïŒã§
ãããããæ¯èŒçé«CaOïŒSiO2ã®ããŠããŒã補
é ããå Žåã軜éã®SiO2質åæã®æ·»å éãå°ãª
ããªããããŠããŒã®åµ©æ¯éã倧ãããªãæ¬ ç¹ãã
ãããŸããCaOïŒSiO21.15以äžã®ããŠããŒçµæã
åŸãããªãããšããã®åæã®æ¬ ç¹ã§ããããŸãã
ãŠãªã©ã¹ããã€ãã¯æŽã«CaOïŒSiO2ãäœããã
ã®äœ¿çšç¯å²ã¯éåžžã«çãããŸããæåã®å®å®åºŠã«
ãåé¡ãããã é»ãªã³ã¹ã©ã°ããŠãªã©ã¹ããã€ããªã©ã®æ¯èŒç
äœCaOïŒSiO2ã®åºæã«ç³ç°ç³ããã¿ã«ç³ãªã©ã
å ããé«CaOïŒSiO2ã®ããŠããŒãåŸãæ¹æ³ãè
ãããããããããã®æ¹æ³ãå質ã®å®å®æ§ã«åé¡
ãããã奜ãŸããããŠããŒã¯åŸãããªãã åé¡ç¹ã解決ããããã®æ段 æ¬çºæè ãã¯ãã®ãããªåŸæ¥ã®ããŠããŒåºæå
æãæããæ¬ ç¹ã解決ãã¹ãçš®ã æ€èšããCaOãš
SiO2ã®åèšéã70ééïŒ ä»¥äžãAl2O38ééïŒ ä»¥
äžãFe2O31ééïŒ ä»¥äžãF1ã10ééïŒ ã§äžã€
CaOïŒSiO2ééæ¯ã1.2ã2.3ã®åæçªé žã«ã«ã·ãŠ
ã ãããŠããŒåºæåæãšããŠå¥œãŸããããšãèŠåº
ããã ããªãã¡ãå¿ é æåãšããŠCaOåã³SiO2ãå«
æããŠãªããCaOïŒSiO2å«éã70ééïŒ ä»¥äžã§
äžã€CaOïŒSiO2ééæ¯ã1.2ã2.3ã§ããåæçªé ž
ã«ã«ã·ãŠã ã§ãã€ãŠãäžå¯é¿äžçŽç©ã®ãã¡ïŒŠãïŒ
ã10ééïŒ ãAl2O3ãïŒééïŒ ä»¥äžåã³Fe2O3ã
ïŒééïŒ ä»¥äžã§ããåæçªé žã«ã«ã·ãŠã ãåºæå
æãšããŠå°ãªããšã50ééïŒ ä»¥äžå«ãããšãç¹åŸŽ
ãšããéŒã®é£ç¶é³é çšé³åæ·»å å€ãæäŸããã«ã
ãã äœçšïŒœ æ¬çºæã®ããŠããŒã®åºæåæãšããŠäœ¿çšããå
æçªé žã«ã«ã·ãŠã ã¯æ¯èŒçé«CaOïŒSiO2ã§ãã
ãããããŠããŒã補é ããå Žåã«ã軜éã®SiO2
質åæãå€éã«äœ¿çšã§ãããåŸã€ãŠãäœåµ©æ¯é
ã§ãä¿æž©æ§ã®åªããããŠããŒãåŸãããšãã§ãã
ãŸããSiO2質åæã®å¢æžã«ããCaOïŒSiO2ãåº
ç¯å²ã«éžå®ããããšãå¯èœã§ãããæŽã«ã該åæ
çªé žã«ã«ã·ãŠã ã¯Fe2O3ã®å«æéãå°ãªãããã
éŒäžã®Alãšã®åå¿ã«ããAl2O3ã®çæãå°ãªãã
éŒã®æ±æãé²æ¢ããããšãã§ããããŸããAl2O3
çæã«ããããŠããŒç¹æ§ã®å€åãå°ãªããå®å®ã
ã最æ»æ§ãåŸããããããç¹ã«å³ãããèŠæ±ãã
ãããŠããŒã®åºæåæãšããŠå¥œãŸããç¹åŸŽãæã
ãŠããã æ¬çºæã«äœ¿çšããåæçªé žã«ã«ã·ãŠã ã¯
CaCO3ãCaïŒOHïŒ2ããããã€ããçªç ãçªç³ã
ç²åãããŒããµã€ããã·ã€ãã¢ãããã¬ã©ã¹å±ã
ãœãŒãç°ãçé žãªããŠã ãæ°·æ¶ç³ãããåãœãŒ
ãããã¿ã«ç³åã³ã³ãŒã¯ã¹çŽãªã©ãæå®ã®ååŠçµ
æã«ãªãããã«æ··åããé»æ°çãªã©ã®å ç±çã§
1400â以äžã®é«æž©äžã§æº¶èããåŸãæ°Žç æ¥å·ãã
100â以äžã§ä¹Ÿç¥ããããŒã«ãã«ãªã©ã®æ £çšã®åŸ®
çŽç æ©ã§100ã¡ãã·ãŠä»¥äžã«çŽç ããããšã«ãã
容æã«åŸãããã ãªããã³ãŒã¯ã¹çŽã¯æº¶èç©äžã®Fe2O3ãéå ã
é€å»ããã¬ã©ã¹çŽã¯æº¶èæéã®ççž®ãç®çãšããŠ
æ·»å ãããã®ã§ããã ãã®ããã«ããŠåŸãããåæçªé žã«ã«ã·ãŠã ã¯
éæ¶è³ªã®æº¶èæ°Žç ç©ã§ãããããæåãåäžã§ã
éé¢ã®CaOã3CaOã»SiO2ã®åŠãæ°Žåæ§é±ç©ãå«
ãŸãªããããå æ°Žâæ··ç·ŽâæŒåºé ç²ãã¹ã©ãªãŒã®
ã¹ãã¬ãŒä¹Ÿç¥ã«ããé ç²ãå¯èœã§ããã 次ã«ãåæçªé žã«ã«ã·ãŠã åºæåæã®çµæã«ã€
ããŠèšèŒãããCaOïŒSiO2ã¯1.2以äžãšãããã
ãã¯CaOïŒSiO2ã1.2以äžã§ãããšãããŠããŒã®
CaOïŒSiO2çµæç¯å²ãããåºãããããšãã§ãã
ãŸãã軜éã®SiO2ãå€éã«äœ¿çšããã°ãäœåµ©æ¯
éã§ä¿æž©æ§ã®è¯ãããŠããŒãåŸãããšãã§ããã
ãã§ããããã®ãããªèŠ³ç¹ãããããšãåæçªé ž
ã«ã«ã·ãŠã ã®CaOïŒSiO2ã¯ã§ããã ãé«ãæ¹ã
è¯ãããCaOïŒSiO2ã®äžæã«äŒŽãã溶èç©ã®å
åºç¹ãçµæ¶å枩床ãäžããã溶èç©è£œé æã®äœæ¥
æ§ãèããæªåããç®çãšããéæ¶è³ªåæãå®å®
ã«åŸãããšã¯å°é£ã§ããã åŸã€ãŠãæ¬çºæã«äœ¿çšããåæçªé žã«ã«ã·ãŠã
ã®CaOïŒSiO2ã¯1.2ã2.3ã奜ãŸããã¯1.2ã1.9ã
è¯ãã ããŠããŒã¯æº¶éŒäžããæµ®äžããŠããAl2O3ãå€
éã«åžåããããšããããããŠããŒã¹ã©ã°ã¯
Al2O3ã15ééïŒ ä»¥äžã«ãªããšãã²ãŒã¬ãã€ã
ïŒ2CaOã»Al2O3ã»SiO2ïŒãªã©ã®é«èç¹é±ç©ãæåº
ãã最æ»æ§ãäœäžãããåŸã€ãŠãæ¬çºæã«äœ¿çšã
ãåæçªé žã«ã«ã·ãŠã äžã®äžå¯é¿äžçŽç©Al2O3å«
éã¯ïŒééïŒ ä»¥äžã奜ãŸããã¯ïŒééïŒ ä»¥äžã§ã
ãã Fe2O3ã¯éŒäžæåãšåå¿ããéŒã®æ±æåå ãšãª
ãããŸããã¹ã©ã°ã®ç¹æ§å€åã®åå ãšãªãããã
åæçªé žã«ã«ã·ãŠã äžã®äžå¯é¿äžçŽç©Fe2O3å«é
ã¯ïŒééïŒ ä»¥äžã奜ãŸããã¯0.3ééïŒ ä»¥äžã«å¶
éããå¿ èŠãããã ã¯æº¶èç©è£œé æã®ç²åºŠã調æŽããäœæ¥æ§ãæ¹
åããç®çã§æ·»å ããããéå°ã«æ·»å ãããšã溶
è容åšã®æå·ã倧ããããŸããèžçºã«ããçµæå€
åãèªããããããŸããã®æ·»å éãéå°ã®å Žå
ã«ã¯ãç²åºŠäœäžã®å¹æãå°ãªããåŸã€ãŠãåæçª
é žã«ã«ã·ãŠã äžã®ïŒŠå«éã¯ïŒã10ééïŒ ã奜ãŸã
ãã¯ïŒãïŒééïŒ ãè¯ãã æŽã«ããšåæ§ã®ç®çã§Na2OãLi2OãB2O3ãª
ã©ã®ãã©ãã¯ã¹æåãæ·»å ããåæçªé žã«ã«ã·ãŠ
ã ã補é ããéã®æº¶èç©ã®èç¹ãç²åºŠã調æŽãã
ããšãã§ãããã容åšã®æå·ãèžçºãèæ ®ããã
ã®åèšéã¯15ééïŒ ä»¥äžãšããããšã奜ãŸããã ãªããäžè¿°ã®åæçªé žã«ã«ã·ãŠã ã«ãããŠã¯ã
äžèšæ¡ä»¶ãæºè¶³ããŠããã°ãåæé±ç©çã«ç±æ¥ã
ãä»ã®äžå¯é¿äžçŽç©ãåæçªé žã«ã«ã·ãŠã 補é ã®
éã®äžå¯é¿äžçŽç©çã¯èš±å®¹ã§ããã æ¬çºæã®ããŠããŒã¯äžã«ç€ºããããªåºæåæã
SiO2質åæããã©ãã¯ã¹åæåã³ççŽ è³ªåæã
ãæ§æãããŠããã åºæåæïŒåæçªé žã«ã«ã·ãŠã ã SiO2質åæïŒããŒã©ã€ãããã©ã€ã¢ãã·ãŠã
çªç ãã¬ã©ã¹çŽãçªè»åãªã©ã ãã©ãã¯ã¹åæïŒãœãŒãç°ãLi2CO3ãNaFã
Na3AlF6ããã¿ã«ç³ãBaCO3ãMgCO3ãMgF2ã
ç¡Œç ãªã©ã ççŽ è³ªåæïŒã³ãŒã¯ã¹çŽãã«ãŒãã³ãã©ãã¯ã
倩ç¶é»éãªã©ã ãŸããããŠããŒã¯é³é 枩床ãé³åãµã€ãºãéŒ
çš®ãé³é 枩床ãªã©ã®é³é æ¡ä»¶ã«å¿ããŠè»åç¹ãè
ç¹ãç²åºŠãè¡šé¢åŒµåãçµæ¶å枩床ã溶èé床ãªã©
ã®æº¶èç¹æ§ã調æŽããå¿ èŠãããããããã®ç¹æ§
ã¯ããŠããŒã®ååŠçµæã«ãã€ãŠæ¯é ãããŠããã
äžè¿°ã®ãããªååæãæå®ã®ååŠçµæã«ãªããã
ã«é åããå¿ èŠãããã æ¬çºæã®éŒã®é£ç¶é³é çšé³åæ·»å å€ïŒããŠã
ãŒïŒã®ååŠçµæã¯ä»¥äžã®éãã§ããã CaOïŒ20ã45ééïŒ ãSiO2ïŒ20ã50ééïŒ ã
CaOïŒSiO2ééæ¯ïŒ0.7ã1.5ãAl2O3ïŒïŒã10é
éïŒ ãFe2O3ïŒ0.1ã2.0ééïŒ ãMgOïŒïŒã10é
éïŒ ãNa2OïŒK2OïŒLi2OïŒïŒã25ééïŒ ãïŒ
ïŒã15ééïŒ ãB2O3ïŒïŒã10ééïŒ ãMnOïŒïŒ
ãïŒééïŒ ãBaOïŒïŒã15ééïŒ ãïŒ0.5ã10
ééïŒ ã äžè¿°ã®ååŠçµæããã€æ¬çºæã«ããããŠããŒã¯
åæçªé žã«ã«ã·ãŠã åºæåæ50ééïŒ ä»¥äžã
SiO2質åæïŒã30ééïŒ ããã©ãã¯ã¹åæïŒã
30ééïŒ åã³ççŽ è³ªåæ0.5ãïŒééïŒ ãé åã
ãããšã«ããæ§æããããšãã§ããã åæçªé žã«ã«ã·ãŠã ã®æ·»å é åéã50ééïŒ æª
æºã§ãããšãåæçªé žã«ã«ã·ãŠã ã®ç¹åŸŽã§ããæ
åã®åäžæ§ãå®å®æ§ãæãªãããããã«å¥œãŸãã
ãªãã SiO2質åæã¯ããŠããŒã®åµ©æ¯éãCaOïŒSiO2
ã調æŽããããã«äœ¿çšãããã®ã§ãããSiO2質
åæã®æ·»å é åéãïŒééïŒ æªæºã§ãããšããŒã©
ã€ããªã©ã®è»œéSiO2質åæã§ã嵩æ¯éãå åã«
äœäžãããããšãã§ãããæŽã«ä¿æž©æ§ãæªåãã
ããã«å¥œãŸãããªãããŸããSiO2質åæã®æ·»å
é åéã30ééïŒ ãè¶ ãããšåµ©æ¯éãå°ãããªã
ãããçŽå¡µçºçéãå€ããªã奜ãŸãããªãã ãã©ãã¯ã¹åæã¯æº¶èç¹æ§ã調æŽããããã«ïŒ
ééïŒ ä»¥äžãæ·»å é åããå¿ èŠãããããéå°ã«
æ·»å ãããšæº¶èæã®èžçºã«ããçµæå€åãããã
æŽã«ã溶éŒãé³åå ãžæ³šå ¥ãã浞挬ããºã«ãæ¿ã
ãæå·ããããã«ãæ·»å é åéã®äžéã¯30ééïŒ
çšåºŠã奜ãŸããã ççŽ è³ªåæã¯ããŠããŒã®æº¶èé床ã調æŽããã
ãã«æ·»å ããããæ·»å é åéã0.5ééïŒ æªæºã§
ã¯å®è³ªçã«æ·»å å¹æããªããïŒééïŒ ãè¶ ãããš
溶èé床ãé ããªãéããããã«å¥œãŸãããªãã æ¬çºæã«ããããŠããŒã¯äžè¿°ã®ãããªååŠçµæ
ã«ãªãããã«ååæãé åããåŸãåãããµãŒ
ãããŠã¿ãããµãŒã§åäžã«æ··åããããšã«ããåŸ
ãããïŒçŽæ«ããŠããŒïŒããŸããåææ··åç©ãå
æ°Žæ··ç·ŽããæŒåºåŒé ç²æ©ã«ãã€ãŠæ±ç¶äœã®é¡ç²ã
åŸãããæ··åç©ãã¹ã©ãªãŒåããã®ã¡ãã¹ãã¬ãŒ
é ç²æ³ã«ããçç¶ã®ããŠããŒãåŸãããšãã§ã
ãã å®æœäŸïŒœ å®æœäŸ åæçªé žã«ã«ã·ãŠã åºæåæã®è£œé 以äžã®ç¬¬ïŒè¡šã«èšèŒããé åããã€åææ··åç©
ãé»æ°çäžã§é£ç¶é³é ã«ãã1650ã1700âã«å ç±
ããããšã«ãã溶èããåŸããã溶èç©ãæ°Žç æ¥
å·ããçŽç åã190âã§ä¹Ÿç¥ããæåŸã«ããŒã«ã
ã«ã§100ã¡ãã·ãŠä»¥äžã«çŽç ããŠåæçªé žã«ã«ã·
ãŠã åºæåæãåŸãã åŸãããåæçªé žã«ã«ã·ãŠã ã®çµæã第ïŒè¡šã«
èšèŒããã ãªãã第ïŒè¡šã«ã¯æ¯èŒåããŠããŒã補é ããã
ãã«äœ¿çšããé»ãªã³ã¹ã©ã°ãåæã¹ã©ã°ããã«ã
ã©ã³ãã»ã¡ã³ãã®çµæã䜵èšããã
ç¥ç§°ããïŒã¯ãã«ãã©ã³ãã»ã¡ã³ããé»ãªã³ã¹ã©
ã°ããŠãªã©ã¹ããã€ããªã©ãäž»åæãšããå¿ èŠã«
å¿ããŠSiO2質åæãå ããæŽã«ãœãŒãç°ãç¡Œç ã
æ°·æ¶ç³ãããåãœãŒãããã¿ã«ç³ãªã©ã®ãã©ãã¯
ã¹åæã溶èé床調æŽå€ãšããŠã®ççŽ è³ªåæãã
ãªã€ãŠããã ããŠããŒã¯é³åå ãžæ³šå ¥ããã溶éŒè¡šé¢äžãžæ·»
å ãããçš®ã ã®åœ¹å²ãæãããªããæ¶è²»ãããã
ç¹ã«ãé³åãšååºã·ãšã«ã®æœ€æ»ã溶éŒäžãã
æµ®äžããä»åšç©ã®æº¶è§£ãåžåã溶éŒã®ä¿æž©ãé
èŠãªåœ¹å²ã§ããã æåœã«ãããé£ç¶é³é æè¡ã®é²å±ã¯ç®èŠãŸã
ããHCRïŒããããã€ãŒãžïŒãHDRïŒããããã€
ã¬ã¯ãããŒãªã³ã°ïŒæ¯çã®åäžãé«éé³é åãªã©
ãç©æ¥µçã«é²ããããŠãããåŸã€ãŠãé³çå質ã
ææ¥å®å®ã«åœ±é¿ããããŠããŒã«å¯ŸããèŠæ±ãäžæ®µ
ãšå³ãããã®ããããæ±ããããããŠããŒã¯å€çš®
å€æ§ãšãªããåŸæ¥ãšå€§ããç°ãªã€ãå ·åç¹æ§ãå¿
èŠãšãªã€ãŠããããã®ãããããŠããŒã®è»åç¹ã
èç¹ãç²åºŠãè¡šé¢åŒµåãçµæ¶å枩床ãªã©ã®ç¹æ§ã
æ¯é ããååŠçµæã¯ããåºç¯å²ãšãªããç¹ã«ãã
ããã®ç¹æ§ã«é倧ãªåœ±é¿ãäžããCaOïŒSiO2é
éæ¯ïŒä»¥äžãCaOïŒSiO2ãšç¥ç§°ããïŒã®èª¿æŽã¯
極ããŠéèŠã§ããã åè¿°ããããŠããŒã®åœ¹å²ã®ãã¡ãåã³ã¯è»
åç¹ãç²åºŠãªã©ã®ç¹æ§ã調æŽããããšãæéèŠã§
ãããååŠçµæã®éžå®ãéèŠã§ãããäžæ¹ãã®
溶éŒä¿æž©ã«ã€ããŠã¯ãççŽ è³ªåæã«ãã€ãŠèª¿æŽã
ãã溶èé床ã嵩æ¯éãæ¡ããæ§ãªã©ã®çŽäœç¹æ§
ãéèŠã§ããã çºæã解決ããããšããåé¡ç¹ïŒœ åŸæ¥ãããŠããŒã®åºæåæãšããŠãã«ãã©ã³ã
ã»ã¡ã³ããé»ãªã³ã¹ã©ã°ãåæã¹ã©ã°ããŠãªã©ã¹
ããã€ããªã©ã䜿çšãããŠããããããããäžé·
äžçãæããŠãããããŠããŒã®åºæãšããŠå®å šãš
ã¯èšãé£ããäŸãã°ããã«ãã©ã³ãã»ã¡ã³ãã¯æ¯
èŒçååŠæåãå®å®ããŠããç¹åŸŽããããæŽã«ã
CaOïŒSiO2ãä»ã®åºæåæãããé«ããããã
ãŒã©ã€ãçŽãªã©ã®è»œéSiO2質åæãšã®çµã¿åã
ãã«ããäœåµ©æ¯éã§ãä¿æž©æ§ãè¯ãäžã€CaOïŒ
SiO2ãåºç¯å²ã«èšå®ããããšãå¯èœã§ãããã
ããããã«ãã©ã³ãã»ã¡ã³ãã¯ïŒã15ééïŒ ã®
4CaOã»Al2O3ã»Fe2O3ãå«ããããããŠããŒãé
åžžïŒïŒ ééïŒ ååŸã®Fe2O3ãå«æãããããŠããŒ
äžã®Fe2O3ã¯éŒæåïŒäŸãã°AlïŒãšåå¿ããéŒã
æ±æããåå ãšãªããšåæã«ããŠããŒã®ç¹æ§ãå€
åããããããå®å®ãã最æ»æ§ãåŸãããªããæŽ
ã«ããã«ãã©ã³ãã»ã¡ã³ããåºæãšããããŠããŒ
ã¯æ°Žååå¿ããããããéåžžæ¡çšãããŠããå æ°Ž
âæ··ç·ŽâæŒåºé ç²æ³ãªã©ã«ããé¡ç²åãå°é£ã§ã
ãã äžæ¹ãé»ãªã³ã¹ã©ã°ãé»ãªã³ã¹ã©ã°é¡ä»¥çµæã®
åæã¹ã©ã°ã¯æº¶èâæ°Žç ç©ã§ãããããæååäž
æ§ã«åªããéæ¶è³ªåæã§ãããé¡ç²åã容æã§ã
ããããããæ¯èŒçäœCaOïŒSiO2ïŒ0.9ã1.15ïŒã§
ãããããæ¯èŒçé«CaOïŒSiO2ã®ããŠããŒã補
é ããå Žåã軜éã®SiO2質åæã®æ·»å éãå°ãª
ããªããããŠããŒã®åµ©æ¯éã倧ãããªãæ¬ ç¹ãã
ãããŸããCaOïŒSiO21.15以äžã®ããŠããŒçµæã
åŸãããªãããšããã®åæã®æ¬ ç¹ã§ããããŸãã
ãŠãªã©ã¹ããã€ãã¯æŽã«CaOïŒSiO2ãäœããã
ã®äœ¿çšç¯å²ã¯éåžžã«çãããŸããæåã®å®å®åºŠã«
ãåé¡ãããã é»ãªã³ã¹ã©ã°ããŠãªã©ã¹ããã€ããªã©ã®æ¯èŒç
äœCaOïŒSiO2ã®åºæã«ç³ç°ç³ããã¿ã«ç³ãªã©ã
å ããé«CaOïŒSiO2ã®ããŠããŒãåŸãæ¹æ³ãè
ãããããããããã®æ¹æ³ãå質ã®å®å®æ§ã«åé¡
ãããã奜ãŸããããŠããŒã¯åŸãããªãã åé¡ç¹ã解決ããããã®æ段 æ¬çºæè ãã¯ãã®ãããªåŸæ¥ã®ããŠããŒåºæå
æãæããæ¬ ç¹ã解決ãã¹ãçš®ã æ€èšããCaOãš
SiO2ã®åèšéã70ééïŒ ä»¥äžãAl2O38ééïŒ ä»¥
äžãFe2O31ééïŒ ä»¥äžãF1ã10ééïŒ ã§äžã€
CaOïŒSiO2ééæ¯ã1.2ã2.3ã®åæçªé žã«ã«ã·ãŠ
ã ãããŠããŒåºæåæãšããŠå¥œãŸããããšãèŠåº
ããã ããªãã¡ãå¿ é æåãšããŠCaOåã³SiO2ãå«
æããŠãªããCaOïŒSiO2å«éã70ééïŒ ä»¥äžã§
äžã€CaOïŒSiO2ééæ¯ã1.2ã2.3ã§ããåæçªé ž
ã«ã«ã·ãŠã ã§ãã€ãŠãäžå¯é¿äžçŽç©ã®ãã¡ïŒŠãïŒ
ã10ééïŒ ãAl2O3ãïŒééïŒ ä»¥äžåã³Fe2O3ã
ïŒééïŒ ä»¥äžã§ããåæçªé žã«ã«ã·ãŠã ãåºæå
æãšããŠå°ãªããšã50ééïŒ ä»¥äžå«ãããšãç¹åŸŽ
ãšããéŒã®é£ç¶é³é çšé³åæ·»å å€ãæäŸããã«ã
ãã äœçšïŒœ æ¬çºæã®ããŠããŒã®åºæåæãšããŠäœ¿çšããå
æçªé žã«ã«ã·ãŠã ã¯æ¯èŒçé«CaOïŒSiO2ã§ãã
ãããããŠããŒã補é ããå Žåã«ã軜éã®SiO2
質åæãå€éã«äœ¿çšã§ãããåŸã€ãŠãäœåµ©æ¯é
ã§ãä¿æž©æ§ã®åªããããŠããŒãåŸãããšãã§ãã
ãŸããSiO2質åæã®å¢æžã«ããCaOïŒSiO2ãåº
ç¯å²ã«éžå®ããããšãå¯èœã§ãããæŽã«ã該åæ
çªé žã«ã«ã·ãŠã ã¯Fe2O3ã®å«æéãå°ãªãããã
éŒäžã®Alãšã®åå¿ã«ããAl2O3ã®çæãå°ãªãã
éŒã®æ±æãé²æ¢ããããšãã§ããããŸããAl2O3
çæã«ããããŠããŒç¹æ§ã®å€åãå°ãªããå®å®ã
ã最æ»æ§ãåŸããããããç¹ã«å³ãããèŠæ±ãã
ãããŠããŒã®åºæåæãšããŠå¥œãŸããç¹åŸŽãæã
ãŠããã æ¬çºæã«äœ¿çšããåæçªé žã«ã«ã·ãŠã ã¯
CaCO3ãCaïŒOHïŒ2ããããã€ããçªç ãçªç³ã
ç²åãããŒããµã€ããã·ã€ãã¢ãããã¬ã©ã¹å±ã
ãœãŒãç°ãçé žãªããŠã ãæ°·æ¶ç³ãããåãœãŒ
ãããã¿ã«ç³åã³ã³ãŒã¯ã¹çŽãªã©ãæå®ã®ååŠçµ
æã«ãªãããã«æ··åããé»æ°çãªã©ã®å ç±çã§
1400â以äžã®é«æž©äžã§æº¶èããåŸãæ°Žç æ¥å·ãã
100â以äžã§ä¹Ÿç¥ããããŒã«ãã«ãªã©ã®æ £çšã®åŸ®
çŽç æ©ã§100ã¡ãã·ãŠä»¥äžã«çŽç ããããšã«ãã
容æã«åŸãããã ãªããã³ãŒã¯ã¹çŽã¯æº¶èç©äžã®Fe2O3ãéå ã
é€å»ããã¬ã©ã¹çŽã¯æº¶èæéã®ççž®ãç®çãšããŠ
æ·»å ãããã®ã§ããã ãã®ããã«ããŠåŸãããåæçªé žã«ã«ã·ãŠã ã¯
éæ¶è³ªã®æº¶èæ°Žç ç©ã§ãããããæåãåäžã§ã
éé¢ã®CaOã3CaOã»SiO2ã®åŠãæ°Žåæ§é±ç©ãå«
ãŸãªããããå æ°Žâæ··ç·ŽâæŒåºé ç²ãã¹ã©ãªãŒã®
ã¹ãã¬ãŒä¹Ÿç¥ã«ããé ç²ãå¯èœã§ããã 次ã«ãåæçªé žã«ã«ã·ãŠã åºæåæã®çµæã«ã€
ããŠèšèŒãããCaOïŒSiO2ã¯1.2以äžãšãããã
ãã¯CaOïŒSiO2ã1.2以äžã§ãããšãããŠããŒã®
CaOïŒSiO2çµæç¯å²ãããåºãããããšãã§ãã
ãŸãã軜éã®SiO2ãå€éã«äœ¿çšããã°ãäœåµ©æ¯
éã§ä¿æž©æ§ã®è¯ãããŠããŒãåŸãããšãã§ããã
ãã§ããããã®ãããªèŠ³ç¹ãããããšãåæçªé ž
ã«ã«ã·ãŠã ã®CaOïŒSiO2ã¯ã§ããã ãé«ãæ¹ã
è¯ãããCaOïŒSiO2ã®äžæã«äŒŽãã溶èç©ã®å
åºç¹ãçµæ¶å枩床ãäžããã溶èç©è£œé æã®äœæ¥
æ§ãèããæªåããç®çãšããéæ¶è³ªåæãå®å®
ã«åŸãããšã¯å°é£ã§ããã åŸã€ãŠãæ¬çºæã«äœ¿çšããåæçªé žã«ã«ã·ãŠã
ã®CaOïŒSiO2ã¯1.2ã2.3ã奜ãŸããã¯1.2ã1.9ã
è¯ãã ããŠããŒã¯æº¶éŒäžããæµ®äžããŠããAl2O3ãå€
éã«åžåããããšããããããŠããŒã¹ã©ã°ã¯
Al2O3ã15ééïŒ ä»¥äžã«ãªããšãã²ãŒã¬ãã€ã
ïŒ2CaOã»Al2O3ã»SiO2ïŒãªã©ã®é«èç¹é±ç©ãæåº
ãã最æ»æ§ãäœäžãããåŸã€ãŠãæ¬çºæã«äœ¿çšã
ãåæçªé žã«ã«ã·ãŠã äžã®äžå¯é¿äžçŽç©Al2O3å«
éã¯ïŒééïŒ ä»¥äžã奜ãŸããã¯ïŒééïŒ ä»¥äžã§ã
ãã Fe2O3ã¯éŒäžæåãšåå¿ããéŒã®æ±æåå ãšãª
ãããŸããã¹ã©ã°ã®ç¹æ§å€åã®åå ãšãªãããã
åæçªé žã«ã«ã·ãŠã äžã®äžå¯é¿äžçŽç©Fe2O3å«é
ã¯ïŒééïŒ ä»¥äžã奜ãŸããã¯0.3ééïŒ ä»¥äžã«å¶
éããå¿ èŠãããã ã¯æº¶èç©è£œé æã®ç²åºŠã調æŽããäœæ¥æ§ãæ¹
åããç®çã§æ·»å ããããéå°ã«æ·»å ãããšã溶
è容åšã®æå·ã倧ããããŸããèžçºã«ããçµæå€
åãèªããããããŸããã®æ·»å éãéå°ã®å Žå
ã«ã¯ãç²åºŠäœäžã®å¹æãå°ãªããåŸã€ãŠãåæçª
é žã«ã«ã·ãŠã äžã®ïŒŠå«éã¯ïŒã10ééïŒ ã奜ãŸã
ãã¯ïŒãïŒééïŒ ãè¯ãã æŽã«ããšåæ§ã®ç®çã§Na2OãLi2OãB2O3ãª
ã©ã®ãã©ãã¯ã¹æåãæ·»å ããåæçªé žã«ã«ã·ãŠ
ã ã補é ããéã®æº¶èç©ã®èç¹ãç²åºŠã調æŽãã
ããšãã§ãããã容åšã®æå·ãèžçºãèæ ®ããã
ã®åèšéã¯15ééïŒ ä»¥äžãšããããšã奜ãŸããã ãªããäžè¿°ã®åæçªé žã«ã«ã·ãŠã ã«ãããŠã¯ã
äžèšæ¡ä»¶ãæºè¶³ããŠããã°ãåæé±ç©çã«ç±æ¥ã
ãä»ã®äžå¯é¿äžçŽç©ãåæçªé žã«ã«ã·ãŠã 補é ã®
éã®äžå¯é¿äžçŽç©çã¯èš±å®¹ã§ããã æ¬çºæã®ããŠããŒã¯äžã«ç€ºããããªåºæåæã
SiO2質åæããã©ãã¯ã¹åæåã³ççŽ è³ªåæã
ãæ§æãããŠããã åºæåæïŒåæçªé žã«ã«ã·ãŠã ã SiO2質åæïŒããŒã©ã€ãããã©ã€ã¢ãã·ãŠã
çªç ãã¬ã©ã¹çŽãçªè»åãªã©ã ãã©ãã¯ã¹åæïŒãœãŒãç°ãLi2CO3ãNaFã
Na3AlF6ããã¿ã«ç³ãBaCO3ãMgCO3ãMgF2ã
ç¡Œç ãªã©ã ççŽ è³ªåæïŒã³ãŒã¯ã¹çŽãã«ãŒãã³ãã©ãã¯ã
倩ç¶é»éãªã©ã ãŸããããŠããŒã¯é³é 枩床ãé³åãµã€ãºãéŒ
çš®ãé³é 枩床ãªã©ã®é³é æ¡ä»¶ã«å¿ããŠè»åç¹ãè
ç¹ãç²åºŠãè¡šé¢åŒµåãçµæ¶å枩床ã溶èé床ãªã©
ã®æº¶èç¹æ§ã調æŽããå¿ èŠãããããããã®ç¹æ§
ã¯ããŠããŒã®ååŠçµæã«ãã€ãŠæ¯é ãããŠããã
äžè¿°ã®ãããªååæãæå®ã®ååŠçµæã«ãªããã
ã«é åããå¿ èŠãããã æ¬çºæã®éŒã®é£ç¶é³é çšé³åæ·»å å€ïŒããŠã
ãŒïŒã®ååŠçµæã¯ä»¥äžã®éãã§ããã CaOïŒ20ã45ééïŒ ãSiO2ïŒ20ã50ééïŒ ã
CaOïŒSiO2ééæ¯ïŒ0.7ã1.5ãAl2O3ïŒïŒã10é
éïŒ ãFe2O3ïŒ0.1ã2.0ééïŒ ãMgOïŒïŒã10é
éïŒ ãNa2OïŒK2OïŒLi2OïŒïŒã25ééïŒ ãïŒ
ïŒã15ééïŒ ãB2O3ïŒïŒã10ééïŒ ãMnOïŒïŒ
ãïŒééïŒ ãBaOïŒïŒã15ééïŒ ãïŒ0.5ã10
ééïŒ ã äžè¿°ã®ååŠçµæããã€æ¬çºæã«ããããŠããŒã¯
åæçªé žã«ã«ã·ãŠã åºæåæ50ééïŒ ä»¥äžã
SiO2質åæïŒã30ééïŒ ããã©ãã¯ã¹åæïŒã
30ééïŒ åã³ççŽ è³ªåæ0.5ãïŒééïŒ ãé åã
ãããšã«ããæ§æããããšãã§ããã åæçªé žã«ã«ã·ãŠã ã®æ·»å é åéã50ééïŒ æª
æºã§ãããšãåæçªé žã«ã«ã·ãŠã ã®ç¹åŸŽã§ããæ
åã®åäžæ§ãå®å®æ§ãæãªãããããã«å¥œãŸãã
ãªãã SiO2質åæã¯ããŠããŒã®åµ©æ¯éãCaOïŒSiO2
ã調æŽããããã«äœ¿çšãããã®ã§ãããSiO2質
åæã®æ·»å é åéãïŒééïŒ æªæºã§ãããšããŒã©
ã€ããªã©ã®è»œéSiO2質åæã§ã嵩æ¯éãå åã«
äœäžãããããšãã§ãããæŽã«ä¿æž©æ§ãæªåãã
ããã«å¥œãŸãããªãããŸããSiO2質åæã®æ·»å
é åéã30ééïŒ ãè¶ ãããšåµ©æ¯éãå°ãããªã
ãããçŽå¡µçºçéãå€ããªã奜ãŸãããªãã ãã©ãã¯ã¹åæã¯æº¶èç¹æ§ã調æŽããããã«ïŒ
ééïŒ ä»¥äžãæ·»å é åããå¿ èŠãããããéå°ã«
æ·»å ãããšæº¶èæã®èžçºã«ããçµæå€åãããã
æŽã«ã溶éŒãé³åå ãžæ³šå ¥ãã浞挬ããºã«ãæ¿ã
ãæå·ããããã«ãæ·»å é åéã®äžéã¯30ééïŒ
çšåºŠã奜ãŸããã ççŽ è³ªåæã¯ããŠããŒã®æº¶èé床ã調æŽããã
ãã«æ·»å ããããæ·»å é åéã0.5ééïŒ æªæºã§
ã¯å®è³ªçã«æ·»å å¹æããªããïŒééïŒ ãè¶ ãããš
溶èé床ãé ããªãéããããã«å¥œãŸãããªãã æ¬çºæã«ããããŠããŒã¯äžè¿°ã®ãããªååŠçµæ
ã«ãªãããã«ååæãé åããåŸãåãããµãŒ
ãããŠã¿ãããµãŒã§åäžã«æ··åããããšã«ããåŸ
ãããïŒçŽæ«ããŠããŒïŒããŸããåææ··åç©ãå
æ°Žæ··ç·ŽããæŒåºåŒé ç²æ©ã«ãã€ãŠæ±ç¶äœã®é¡ç²ã
åŸãããæ··åç©ãã¹ã©ãªãŒåããã®ã¡ãã¹ãã¬ãŒ
é ç²æ³ã«ããçç¶ã®ããŠããŒãåŸãããšãã§ã
ãã å®æœäŸïŒœ å®æœäŸ åæçªé žã«ã«ã·ãŠã åºæåæã®è£œé 以äžã®ç¬¬ïŒè¡šã«èšèŒããé åããã€åææ··åç©
ãé»æ°çäžã§é£ç¶é³é ã«ãã1650ã1700âã«å ç±
ããããšã«ãã溶èããåŸããã溶èç©ãæ°Žç æ¥
å·ããçŽç åã190âã§ä¹Ÿç¥ããæåŸã«ããŒã«ã
ã«ã§100ã¡ãã·ãŠä»¥äžã«çŽç ããŠåæçªé žã«ã«ã·
ãŠã åºæåæãåŸãã åŸãããåæçªé žã«ã«ã·ãŠã ã®çµæã第ïŒè¡šã«
èšèŒããã ãªãã第ïŒè¡šã«ã¯æ¯èŒåããŠããŒã補é ããã
ãã«äœ¿çšããé»ãªã³ã¹ã©ã°ãåæã¹ã©ã°ããã«ã
ã©ã³ãã»ã¡ã³ãã®çµæã䜵èšããã
ãè¡šã
ãè¡šã
äžè¿°ã®ããã«ããŠåŸãããåæçªé
žã«ã«ã·ãŠã
ãåºæåæãšãã以äžã®ç¬¬ïŒè¡šã«èšèŒããé åã
ãã€åææ··åç©ãåãããµãŒã§é åããããšã«
ããæ¬çºæåã®ããŠããŒåã³æ¯èŒåã®ããŠããŒã
補é ããã ãªããåŸãããããŠããŒã®çµæåã³è«žç¹æ§ã第
ïŒè¡šã«äœµèšããã
ãåºæåæãšãã以äžã®ç¬¬ïŒè¡šã«èšèŒããé åã
ãã€åææ··åç©ãåãããµãŒã§é åããããšã«
ããæ¬çºæåã®ããŠããŒåã³æ¯èŒåã®ããŠããŒã
補é ããã ãªããåŸãããããŠããŒã®çµæåã³è«žç¹æ§ã第
ïŒè¡šã«äœµèšããã
ãè¡šã
ãè¡šã
çºæã®å¹æ
æ¬çºæã®ããŠããŒã«äœ¿çšããåæçªé
žã«ã«ã·ãŠ
ã åºæåæã¯ãã«ãã©ã³ãã»ã¡ã³ãã®é·æãšé»ãª
ã³ã¹ã©ã°ã®é·æãåæã«æããŠããããã該åºæ
åæãå°ãªããšã50ééïŒ å«ãæ¬çºæã®ããŠããŒ
ã¯ä»¥äžã®ãããªç¹åŸŽãæããïŒ è»œéã®SiO2質åæã®æ·»å ã«ããäœåµ©æ¯éã§
äžã€ä¿æž©æ§ãè¯å¥œã§ããïŒ SiO2質åæã®æ·»å éãå¢æžããããšã«ãã
äœCaOïŒSiO2ãé«CaOïŒSiO2ã®çµæãæãã
ããŠããŒã補é ããããšãã§ããïŒ Fe2O3éãå°ãªããå®å®ãã最æ»æ§ãæã
ãïŒ éé¢ã®CaOã3CaOã»SiO2ãå«ãŸãªããã
ã«ãå æ°Žé ç²ãå¯èœã§ããïŒ æåãåäžã«ããããšãã§ããã
ã åºæåæã¯ãã«ãã©ã³ãã»ã¡ã³ãã®é·æãšé»ãª
ã³ã¹ã©ã°ã®é·æãåæã«æããŠããããã該åºæ
åæãå°ãªããšã50ééïŒ å«ãæ¬çºæã®ããŠããŒ
ã¯ä»¥äžã®ãããªç¹åŸŽãæããïŒ è»œéã®SiO2質åæã®æ·»å ã«ããäœåµ©æ¯éã§
äžã€ä¿æž©æ§ãè¯å¥œã§ããïŒ SiO2質åæã®æ·»å éãå¢æžããããšã«ãã
äœCaOïŒSiO2ãé«CaOïŒSiO2ã®çµæãæãã
ããŠããŒã補é ããããšãã§ããïŒ Fe2O3éãå°ãªããå®å®ãã最æ»æ§ãæã
ãïŒ éé¢ã®CaOã3CaOã»SiO2ãå«ãŸãªããã
ã«ãå æ°Žé ç²ãå¯èœã§ããïŒ æåãåäžã«ããããšãã§ããã
Claims (1)
- ïŒ å¿ é æåãšããŠCaOåã³SiO2ãå«æããŠãª
ããCaOïŒSiO2å«éã70ééïŒ ä»¥äžã§äžã€
CaOïŒSiO2ééæ¯ã1.2ã2.3ã§ããåæçªé žã«ã«
ã·ãŠã ã§ãã€ãŠãäžå¯é¿äžçŽç©ã®ãã¡ïŒŠãïŒã10
ééïŒ ãAl2O3ãïŒééïŒ ä»¥äžåã³Fe2O3ãïŒé
éïŒ ä»¥äžã§ããåæçªé žã«ã«ã·ãŠã ãåºæåæãš
ããŠå°ãªããšã50ééïŒ ä»¥äžå«ãããšãç¹åŸŽãšã
ãéŒã®é£ç¶é³é çšé³åæ·»å å€ã
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26187987A JPH01104452A (ja) | 1987-10-19 | 1987-10-19 | éŒã®é£ç¶é³é çšé³åæ·»å å€ |
GB8823909A GB2211178B (en) | 1987-10-19 | 1988-10-12 | Mold additive for continuous casting of steel |
AU23687/88A AU598398B2 (en) | 1987-10-19 | 1988-10-12 | Mold additive for continuous casting of steel |
CA 580333 CA1324239C (en) | 1987-10-19 | 1988-10-17 | Mold additive for continuous casting of steel |
FR8813714A FR2621840B1 (fr) | 1987-10-19 | 1988-10-18 | Additif de moulage pour la coulee continue de l'acier et procede de coulee continue de l'acier |
DE19883835492 DE3835492A1 (de) | 1987-10-19 | 1988-10-18 | Giessformzusatz zum stranggiessen von stahl |
US07/563,802 US5234488A (en) | 1987-10-19 | 1990-08-06 | Mold additive for continuous casting of steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26187987A JPH01104452A (ja) | 1987-10-19 | 1987-10-19 | éŒã®é£ç¶é³é çšé³åæ·»å å€ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01104452A JPH01104452A (ja) | 1989-04-21 |
JPH0227063B2 true JPH0227063B2 (ja) | 1990-06-14 |
Family
ID=17368031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26187987A Granted JPH01104452A (ja) | 1987-10-19 | 1987-10-19 | éŒã®é£ç¶é³é çšé³åæ·»å å€ |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPH01104452A (ja) |
AU (1) | AU598398B2 (ja) |
CA (1) | CA1324239C (ja) |
DE (1) | DE3835492A1 (ja) |
FR (1) | FR2621840B1 (ja) |
GB (1) | GB2211178B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210124346A (ko) | 2019-02-06 | 2021-10-14 | ë 륎 늬í€ë ìììëŒ ìë žë ë¿ë¥Ž ë ëë ìë ì€ë¿ëŒë°ìì¹ ë° íë¡ìžë° ì¡°ë¥ŽìŠ íŽë¡ë | íí©ë¬Œ ë° ëŠ¬í¬ íšì ë§ì ì ì¡° ë°©ë² |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0673730B2 (ja) * | 1990-11-30 | 1994-09-21 | åå·çœç çŠæ ªåŒäŒç€Ÿ | é£ç¶é³é çšçºç±åã¢ãŒã«ãããŠã㌠|
AT404098B (de) * | 1991-03-28 | 1998-08-25 | Tisza Bela & Co | Verfahren zur herstellung von granuliertem stranggiesspulver |
CA2303825C (en) * | 1998-07-21 | 2007-01-09 | Shinagawa Refractories Co., Ltd. | Molding powder for continuous casting of thin-slab |
WO2011006649A1 (en) * | 2009-07-14 | 2011-01-20 | Corus Staal Bv | Casting mould powder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61115653A (ja) * | 1984-11-09 | 1986-06-03 | Nippon Steel Corp | äžççŽ éŒé£ç¶é³é æ³ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB792023A (en) * | 1955-02-21 | 1958-03-19 | Harry Marsh Sinclair Jr | Improvements in process for producing sodium fluoride from an alkaline earth fluoride |
GB1230094A (ja) * | 1967-05-04 | 1971-04-28 | ||
GB1243837A (en) * | 1968-11-08 | 1971-08-25 | Inst Zuschlagstoffe Und Naturs | Method of production for synthetic wollastonite |
DE1912354B2 (de) * | 1969-03-12 | 1972-04-13 | Reimbold & Strick, 5000 Köln-Kalk | Synthetisches kristallines calciumsilikat und verfahren zu seiner herstellung |
AT320184B (de) * | 1971-12-14 | 1975-01-27 | Concast Ag | GieÃpulver zur Verwendung beim StranggieÃen von Stahl |
FR2234244B1 (ja) * | 1973-06-20 | 1978-02-17 | Rech Geolog Miniere | |
CA1147528A (en) * | 1979-06-09 | 1983-06-07 | Seikichi Tabei | Additives for continuous casting of steel |
DE3236391C2 (de) * | 1982-10-01 | 1992-05-27 | Hans Joachim Dipl.-Ing. Eitel | GieÃpulver fÃŒr den Stahlguà |
US4738719A (en) * | 1986-05-09 | 1988-04-19 | Tenneco Canada Inc. (Erco Division) | Steel making flux |
JPS63199057A (ja) * | 1987-02-12 | 1988-08-17 | Shinagawa Refract Co Ltd | éŒã®é£ç¶é³é çšé³åæ·»å å€ |
-
1987
- 1987-10-19 JP JP26187987A patent/JPH01104452A/ja active Granted
-
1988
- 1988-10-12 GB GB8823909A patent/GB2211178B/en not_active Expired - Fee Related
- 1988-10-12 AU AU23687/88A patent/AU598398B2/en not_active Ceased
- 1988-10-17 CA CA 580333 patent/CA1324239C/en not_active Expired - Fee Related
- 1988-10-18 FR FR8813714A patent/FR2621840B1/fr not_active Expired - Fee Related
- 1988-10-18 DE DE19883835492 patent/DE3835492A1/de active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61115653A (ja) * | 1984-11-09 | 1986-06-03 | Nippon Steel Corp | äžççŽ éŒé£ç¶é³é æ³ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210124346A (ko) | 2019-02-06 | 2021-10-14 | ë 륎 늬í€ë ìììëŒ ìë žë ë¿ë¥Ž ë ëë ìë ì€ë¿ëŒë°ìì¹ ë° íë¡ìžë° ì¡°ë¥ŽìŠ íŽë¡ë | íí©ë¬Œ ë° ëŠ¬í¬ íšì ë§ì ì ì¡° ë°©ë² |
Also Published As
Publication number | Publication date |
---|---|
AU598398B2 (en) | 1990-06-21 |
DE3835492A1 (de) | 1989-04-27 |
DE3835492C2 (ja) | 1991-06-27 |
JPH01104452A (ja) | 1989-04-21 |
GB2211178B (en) | 1991-09-18 |
GB2211178A (en) | 1989-06-28 |
CA1324239C (en) | 1993-11-16 |
FR2621840B1 (fr) | 1995-02-10 |
AU2368788A (en) | 1989-05-25 |
FR2621840A1 (fr) | 1989-04-21 |
GB8823909D0 (en) | 1988-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4727773B2 (ja) | åæã±ã€é žã«ã«ã·ãŠã ã䜿çšããéŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
CN103962521A (zh) | è¶ äœç¢³é¢çšæ æ°è¿éžä¿æ€æž£ | |
CN106493321A (zh) | çŒé¢çšäžéŽå èŠçååå ¶å¶å€æ¹æ³ | |
JP4223262B2 (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
JPH0227063B2 (ja) | ||
US5234488A (en) | Mold additive for continuous casting of steel | |
JP2673082B2 (ja) | éŒã®é£ç¶é³é çšçºç±åé¡ç²ç¶ã¢ãŒã«ãããŠã㌠| |
JP3128496B2 (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
KR100252483B1 (ko) | ê°ì ì°ìì£Œì¡°ì© ëª°ëíì°ë | |
JPH0344859B2 (ja) | ||
JPH09308951A (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
JP2000051998A (ja) | éå«æéŒã®é£ç¶é³é æ¹æ³ | |
JPH07323354A (ja) | é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
JP3638706B2 (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
CN1298459C (zh) | äžç§è¿éžä¿æ€æž£ | |
JP3300274B2 (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
JP2020032428A (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
WO2024090580A1 (ja) | é«çã¹ã©ã°ãšè»¢çã¹ã©ã°ãçšãã氎硬æ§ã»ã¡ã³ãçµæç©ã®è£œé æ¹æ³ | |
WO2024090581A1 (ja) | é»æ°çã¹ã©ã°ãçšãã氎硬æ§ã»ã¡ã³ãçµæç©ã®è£œé æ¹æ³ | |
KR100603538B1 (ko) | ì ê°ì© íëì€ ë° ê·ž ì ì¡°ë°©ë² | |
JPH04294849A (ja) | é£ç¶é³é çšã¢ãŒã«ãããŠã㌠| |
JPH0673729B2 (ja) | é£ç¶é³é çšçºç±åã¢ãŒã«ãããŠã㌠| |
JP2001334351A (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠããŒåã³éŒã®é£ç¶é³é æ¹æ³ | |
JPH05269560A (ja) | éŒã®é£ç¶é³é çšé³åæ·»å å€åã³é£ç¶é³é æ¹æ³ | |
JP2003112236A (ja) | éŒã®é£ç¶é³é çšã¢ãŒã«ãããŠã㌠|
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |