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4K043 | Heat treatment of strip materials and filament materials | |
C21D9/52 -9/66 |
C21D9/52-9/66 | AA | AA00 TYPES OF ARTICLES TO BE HEAT TREATED |
AA01 | AA02 | ||||||||
. Plates or bands | . Wires or bars | |||||||||||
AB | AB00 COMPONENTS AND COMPOSITION OF STEEL MATERIALS TO BE HEAT TREATED |
AB01 | AB02 | AB03 | AB04 | AB05 | AB06 | AB07 | AB08 | AB09 | AB10 | |
. Aluminum (Al) | . Boron (B) | . Components comprising less than 1.0% carbon (C) | . Components comprising more than 0.1% and less than 0.5% carbon (C) | . Components comprising more than 0.5% and less than 1.0% carbon (C) | . Components comprising 1.0% and more of carbon (C) | . Calcium (Ca) | . Components comprising less than 1.0% of cobalt (Co) | . Components comprising 1.0% and more of cobalt (Co) | . Components comprising less than 1.0% of chromium (Cr) | |||
AB11 | AB12 | AB13 | AB14 | AB15 | AB16 | AB17 | AB18 | AB19 | AB20 | |||
. Components comprising more than 1.0% and less than 10.0% of chromium (Cr) | . Components comprising 10.0% and over of chromium (Cr) | . Components comprising less than 1.0% of copper (Cu) | . Components comprising 1.0% and over of copper (Cu) | . Components comprising less than 2.0% of manganese (Mn) | . Components comprising more than 2.0% and less than 10.0% of manganese (Mn) | . Components comprising 10.0% and more of manganese (Mn) | . Components comprising less than 1.0% of molybdenum (Mo) | . Components comprising 1.0% and more of molybdenum (Mo) | . Nitrogen (N) | |||
AB21 | AB22 | AB23 | AB24 | AB25 | AB26 | AB27 | AB28 | AB29 | AB30 | |||
. Niobium (Nb) | . Components comprising less than 1.0% of Nickel (Ni) | . Components comprising more than 1.0% and less than 10.0% of nickel (Ni) | . Components comprising 10.0% and more of nickel (Ni) | . Phosphorus (P) | . Sulfur (S) | . Components comprising less than 1.0% of silicon (Si) | . Components comprising 1.0% and more of silicon (Si) | . Titanium (Ti) | . Vanadium (V) | |||
AB31 | AB32 | AB33 | ||||||||||
. Tungsten (W) | . Zirconium (Zr) | . Rare earth metals (i.e., including yttrium (Y)) | ||||||||||
BA | BA00 PROCESSING VOLUME OF HOT ROLLED MATERIALS DURING MANUFACTURE |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | |||||
. Heating conditions of slabs and billets | . Hot-rolling conditions (e.g., processing rate) | . . Temperature (e.g., hot-rolling temperature and finishing temperature) | . Cooling conditions before winding and after hot-rolling (e.g., cooling speed) | . Winding conditions (e.g., winding temperature) | . Re-heating conditions for hot-rolled materials (e.g., heating temperature) | |||||||
BB | BB00 PROCESSING VOLUME DURING MANUFACTURE OF COLD-PROCESSED MATERIALS |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB08 | |||
. Cold-processing conditions (e.g. processing rate and processing temperature) | . Heating conditions of cold-processed materials | . . Rate of temperature increase | . . Heating temperature | . . Heating atmosphere | . Cooling conditions after soaking (e.g., cooling speed) | . Holding conditions while cooling (e.g., temperature and time) | . Reheating conditions (e.g., heating temperature and heating time) | |||||
CA | CA00 HEATING MEANS |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | ||||
. Direct heating | . Radiant-tube heating | . Electric heaters | . Inductive heating | . Direct current resistance heating | . Fusion baths | . Fluid beds | ||||||
CB | CB00 COOLING MEANS |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | |||||
. Cooling by liquid | . . Cooling by immersion | . Cooling by gas | . . Cooling by sprays or mists of liquids | . Cooling by contact with cooled solids | . . Cooling rolls | |||||||
DA | DA00 PURPOSE OF HEAT TREATMENTS |
DA01 | DA02 | DA03 | DA04 | DA05 | ||||||
. Hardening | . Bainitizing | . Normalization | . Tempering | . Annealing | ||||||||
EA | EA00 MODES OF HEAT TREATMENT |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | EA08 | |||
. Batch treatment | . Continuous treatment | . . Conveyance of heat-treated articles in a coil | . . Conveyance of heat-treated articles in a non-coiled state | . . . Conveyance vertically | . . . . Multiple vertical conveyances | . . . Conveyance horizontally | . . . . Conveyance with catenaries | |||||
FA | FA00 CONTROL OF THE HEAT-TREATMENT PROCESS |
FA01 | FA02 | FA03 | FA04 | FA05 | FA06 | FA07 | FA08 | FA09 | ||
. Processing volume | . . Processing volumes as related to the type of heat-treated articles | . . . Temperature | . . . Position and speed | . . . Tension | . . Processing volume as related to the heat-treatment atmosphere | . . . Temperature | . . . Pressure | . . . Components and composition | ||||
FA11 | FA12 | FA13 | ||||||||||
. Types of processing control | . . Heating | . . Cooling | ||||||||||
GA | GA00 DETAILS OF HEAT-TREATMENT EQUIPMENT |
GA01 | GA02 | GA03 | GA04 | GA05 | GA06 | GA07 | GA08 | GA09 | GA10 | |
. Furnace walls (i.e., bodies surrounding the heat-treatment atmosphere) | . Atmospheric-gas seals | . Atmospheric-gas circulation, atmospheric-gas supply, and atmospheric-gas discharge | . . Effective use of heat and recycling of heat | . Preheating of heat-treated articles | . Conveyance of heat-treated articles | . . Hearth rolls | . . . Shapes and structures | . . . Material qualities | . Means for measuring the processing volume and means for detecting the processing volume | |||
HA | HA00 TREATMENTS USED IN HEAT TREATMENTS AND HEAT-TREATMENT EQUIPMENT |
HA01 | HA02 | HA03 | HA04 | HA05 | HA06 | HA07 | ||||
. Surface treatments | . . Surface cleaning (e.g., descaling and degreasing) | . . Surface-coating treatments (i.e., including temporary coatings) | . . . Plating | . Treatments integrated with heat treatment (HA01-HA04 take precedence) | . Heat pretreatments (HA01-HA04 take precedence) | . Treatments after heat treatment (HA01-HA04 take precedence) |