JPS6135153B2 - - Google Patents

Info

Publication number

JPS6135153B2

JPS6135153B2 JP57198083A JP19808382A JPS6135153B2 JP S6135153 B2 JPS6135153 B2 JP S6135153B2 JP 57198083 A JP57198083 A JP 57198083A JP 19808382 A JP19808382 A JP 19808382A JP S6135153 B2 JPS6135153 B2 JP S6135153B2

Authority

JP

Japan

Prior art keywords

treatment

impregnation

gypsum

parts

hemihydrate

Prior art date

1982-11-11

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

Links

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• 238000011282 treatment Methods 0.000 claims description 49
• 238000005470 impregnation Methods 0.000 claims description 38
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
• 238000010438 heat treatment Methods 0.000 claims description 16
• ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 15
• 239000002002 slurry Substances 0.000 claims description 15
• 239000007864 aqueous solution Substances 0.000 claims description 14
• KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 12
• AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims description 12
• 239000000919 ceramic Substances 0.000 claims description 10
• OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 7
• 229910044991 metal oxide Inorganic materials 0.000 claims description 7
• 150000004706 metal oxides Chemical class 0.000 claims description 7
• 238000000034 method Methods 0.000 claims description 6
• 229910052751 metal Inorganic materials 0.000 claims description 4
• 239000002184 metal Substances 0.000 claims description 4
• OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
• XZZZMRPZBYIFPN-UHFFFAOYSA-N O.OS(O)(=O)=O.OS(O)(=O)=O Chemical compound O.OS(O)(=O)=O.OS(O)(=O)=O XZZZMRPZBYIFPN-UHFFFAOYSA-N 0.000 claims description 2
• 229910052791 calcium Inorganic materials 0.000 claims description 2
• 239000011575 calcium Substances 0.000 claims description 2
• 238000004519 manufacturing process Methods 0.000 claims description 2
• 150000001247 metal acetylides Chemical class 0.000 claims description 2
• 150000004767 nitrides Chemical class 0.000 claims description 2
• 229940057306 hemihydrate calcium sulfate Drugs 0.000 claims 3
• 229940095672 calcium sulfate Drugs 0.000 claims 1
• 229910052602 gypsum Inorganic materials 0.000 description 20
• 239000010440 gypsum Substances 0.000 description 20
• 239000000243 solution Substances 0.000 description 18
• 239000000843 powder Substances 0.000 description 11
• 239000002245 particle Substances 0.000 description 10
• 239000012153 distilled water Substances 0.000 description 9
• 230000005484 gravity Effects 0.000 description 8
• 238000002360 preparation method Methods 0.000 description 6
• 238000010521 absorption reaction Methods 0.000 description 5
• 238000005452 bending Methods 0.000 description 5
• 239000011651 chromium Substances 0.000 description 5
• 239000007788 liquid Substances 0.000 description 5
• 239000000203 mixture Substances 0.000 description 5
• 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
• 150000001845 chromium compounds Chemical class 0.000 description 4
• 239000000463 material Substances 0.000 description 4
• 229910004298 SiO 2 Inorganic materials 0.000 description 3
• -1 board Substances 0.000 description 3
• ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
• 238000005260 corrosion Methods 0.000 description 3
• 230000007797 corrosion Effects 0.000 description 3
• 238000002156 mixing Methods 0.000 description 3
• 239000011505 plaster Substances 0.000 description 3
• 238000003756 stirring Methods 0.000 description 3
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 229910010413 TiO 2 Inorganic materials 0.000 description 2
• WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
• 238000010306 acid treatment Methods 0.000 description 2
• 238000001354 calcination Methods 0.000 description 2
• 239000004568 cement Substances 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 238000003754 machining Methods 0.000 description 2
• 239000011259 mixed solution Substances 0.000 description 2
• 238000000465 moulding Methods 0.000 description 2
• 230000002093 peripheral effect Effects 0.000 description 2
• 230000003252 repetitive effect Effects 0.000 description 2
• 238000005728 strengthening Methods 0.000 description 2
• 239000000126 substance Substances 0.000 description 2
• 229910000975 Carbon steel Inorganic materials 0.000 description 1
• GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
• 238000005299 abrasion Methods 0.000 description 1
• 239000000654 additive Substances 0.000 description 1
• 229910052925 anhydrite Inorganic materials 0.000 description 1
• 238000000498 ball milling Methods 0.000 description 1
• 239000010962 carbon steel Substances 0.000 description 1
• 229910010293 ceramic material Inorganic materials 0.000 description 1
• 239000003795 chemical substances by application Substances 0.000 description 1
• 239000004035 construction material Substances 0.000 description 1
• 238000001035 drying Methods 0.000 description 1
• 239000010419 fine particle Substances 0.000 description 1
• 239000011507 gypsum plaster Substances 0.000 description 1
• 238000007654 immersion Methods 0.000 description 1
• 229910010272 inorganic material Inorganic materials 0.000 description 1
• 239000011147 inorganic material Substances 0.000 description 1
• 238000009413 insulation Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 239000007769 metal material Substances 0.000 description 1
• 239000011812 mixed powder Substances 0.000 description 1
• 239000011268 mixed slurry Substances 0.000 description 1
• 239000012778 molding material Substances 0.000 description 1
• 230000007935 neutral effect Effects 0.000 description 1
• 239000004033 plastic Substances 0.000 description 1
• 239000011148 porous material Substances 0.000 description 1
• 238000010298 pulverizing process Methods 0.000 description 1
• 239000002994 raw material Substances 0.000 description 1