JP2012518720A5 - - Google Patents
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- JP2012518720A5 JP2012518720A5 JP2011550413A JP2011550413A JP2012518720A5 JP 2012518720 A5 JP2012518720 A5 JP 2012518720A5 JP 2011550413 A JP2011550413 A JP 2011550413A JP 2011550413 A JP2011550413 A JP 2011550413A JP 2012518720 A5 JP2012518720 A5 JP 2012518720A5
- Authority
- JP
- Japan
- Prior art keywords
- station
- strength
- cooling
- steel
- production
- 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.)
- Granted
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- 229910000831 Steel Inorganic materials 0.000 claims description 120
- 239000010959 steel Substances 0.000 claims description 120
- 238000001816 cooling Methods 0.000 claims description 88
- 238000004519 manufacturing process Methods 0.000 claims description 48
- 238000010791 quenching Methods 0.000 claims description 48
- 230000000171 quenching Effects 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000000137 annealing Methods 0.000 claims description 36
- 239000001257 hydrogen Substances 0.000 claims description 36
- 229910052739 hydrogen Inorganic materials 0.000 claims description 36
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 33
- 238000005554 pickling Methods 0.000 claims description 31
- 238000005246 galvanizing Methods 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 30
- 238000003303 reheating Methods 0.000 claims description 27
- 238000007747 plating Methods 0.000 claims description 26
- 238000002791 soaking Methods 0.000 claims description 21
- 238000009713 electroplating Methods 0.000 claims description 19
- 238000005275 alloying Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000010583 slow cooling Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 12
- 238000002161 passivation Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000112 cooling gas Substances 0.000 claims description 2
- 238000005244 galvannealing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 69
- 229910052725 zinc Inorganic materials 0.000 description 21
- 239000011701 zinc Substances 0.000 description 21
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 15
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000000956 alloy Substances 0.000 description 14
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 14
- 229910000734 martensite Inorganic materials 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 13
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 11
- 239000002994 raw material Substances 0.000 description 11
- 230000032683 aging Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 description 6
- 239000008397 galvanized steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000005496 tempering Methods 0.000 description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 5
- 239000010960 cold rolled steel Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001965 increased Effects 0.000 description 5
- 229910000794 TRIP steel Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000655 Killed steel Inorganic materials 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- -1 carbon aluminum Chemical compound 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000001131 transforming Effects 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Description
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