SE447069B - SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTOR - Google Patents
SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTORInfo
- Publication number
- SE447069B SE447069B SE8401102A SE8401102A SE447069B SE 447069 B SE447069 B SE 447069B SE 8401102 A SE8401102 A SE 8401102A SE 8401102 A SE8401102 A SE 8401102A SE 447069 B SE447069 B SE 447069B
- Authority
- SE
- Sweden
- Prior art keywords
- blank
- temperature
- innovatives
- heat collector
- heat
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 16
- 239000000126 substance Substances 0.000 description 8
- 230000005855 radiation Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Articles (AREA)
Description
10 15 20 25 30 35 ,..--,,-~__.p_.____.- 447 069 gång inlägga värmeutjämningsstationer, ofta värmeisolerade och även värmelagrande, där ämnet stannas upp för tempera- turutjämning. Resultatet har ej varit tillfredsställande då temperaturförlusten och kvarvarande temperaturojämnheter ändå förorsakat dåliga mättoleranser i färdigvalsningen samt kapacitetsnedsättning i valsverket. Inte heller har utjäm- ningsstationer med värmetillförsel givit tillfredsställande resultat då såväl områden med kallare fläckar som intilligg- ande omràden tillförts värme. Temperaturojämnheter har ändock kvarstått även om de kallare fläckarna eliminerats. 10 15 20 25 30 35 , ..-- ,, - ~ __. p _.____.- 447 069 once install heat equalization stations, often heat insulated and also heat storage, where the substance is stopped for temperature turn equalization. The result has not been satisfactory then temperature loss and residual temperature irregularities still caused poor measurement tolerances in the finished rolling as well capacity reduction in the rolling mill. Nor has the supply stations with heat supply results when both areas with colder spots and adjacent heat added to the affected areas. Temperature irregularities have still remained even if the colder spots were eliminated.
Valsverkets olika par har också försetts med en allt mer avancerad reglerutrustning. Det kvarstår dock att med hittillsvarande ugns- och valsningsteknik utgör temperatur- ojämnheter i stålämnet i dag en avsevärd kvalitetsolägenhet.The rolling mill's various pairs have also been provided with an increasing number advanced control equipment. However, it remains to be seen current kiln and rolling technology constitute temperature irregularities in the steel blank today a considerable quality apartment.
SAMMANFATTNING AV UPPFINNINGEN: Med denna uppfinning kan de begränsade kallare partierna i ett stålämne för valsning, som kvarstår efter uppvärmning i t ex en omvärmníngsugn, utjämnas till önskad temperaturnivà.SUMMARY OF THE INVENTION: With this invention, the limited cooler portions can in a steel blank for rolling, which remains after heating in, for example, a reheating oven, equalized to the desired temperature level.
Temperaturutjämningen sker genom en lokal värmetill- försel riktad mot de kallare partierna i stálämnet.The temperature equalization takes place through a local heat supply directed at the colder parts of the steel blank.
Värmning och valsning kan härigenom ske med ökad frihetsgrad och med en förbättrad kvalitet som följd.Heating and rolling can thereby take place with increasing degree of freedom and with an improved quality as a result.
Uppfinningen kommer närmare att beskrivas i krav, i efterföljande avsnitt och i utföringsexempel samt med hjälp av bifogade figurer, varav figur 1 visar en plan över ett valsverk för breda plåtband och figur 2 hur ett ämne ligger an mot ett vattenkylt bärrör.The invention will be described in more detail in claims, in subsequent sections and in exemplary embodiments and with help of attached figures, of which figure 1 shows a plan of a rolling mill for wide sheet metal and figure 2 how a substance abuts a water cooler carrier pipes.
NÄRMARE BESKRIVNING AV UPPFINNINGEN: Temperaturutjämningen åstadkoms genom att stålämnet på lämpligt ställe i valsningen, vanligen före den plastiska bearbetningen, mycket begränsat värms på det ställe där stàlämnet har en temperaturojämnhet. Svårigheten att lokalisera och styra denna uppvärmning under valsning eller då stålämnet är i rörelse gör att föreslagen uppfinning är speciellt tillämpbar om det värmda ämnet innan valsning 1>ooR loflßïlïfl 10 15 20 25 30 35 f... ß.. -..nww-à... 447 069 läggs i en fix position, så att de kallare partierna ligger mitt för den fast installerade värmekällan. I denna vänte- position värms de kalla partierna av stàlämnet från ena sidan under den tid som behövs för att önskad temperatur- ökning skall uppnås. Föreslagna metod är i samband med värmning av stålämnen i en s k omvärmningsugn speciellt tillämpbar i den position, som ämnet naturligt får när den tas ut ur ugnen och läggs på den varmrullgång, som leder till valsverket.DETAILED DESCRIPTION OF THE INVENTION: The temperature equalization is achieved by turning the steel blank on suitable place in the rolling, usually before the plastic processing, very limited heat in the place there the steel blank has a temperature unevenness. The difficulty of locate and control this heating during rolling or when the steel blank is in motion means that the proposed invention is especially applicable to the heated substance before rolling 1> ooR lo fl ßïlï fl 10 15 20 25 30 35 f ... ß .. - .. nww-à ... 447 069 placed in a fixed position, so that the colder parts lie in the middle of the permanently installed heat source. In this waiting position, the cold portions of the steel blank are heated from one side for the time required for the desired temperature increase must be achieved. Proposed method is associated with heating of steel blanks in a so-called reheating furnace in particular applicable in the position which the substance naturally acquires when it taken out of the oven and placed on the hot rolling path, which leads to the rolling mill.
Den lokala värmetillförseln kan alstras på många sätt.The local heat supply can be generated in many ways.
Som exempel kan nämnas induktionsvärmning, gas och olje- brännare och elvärmestràlning. Att föredraga är induktions- värmning då denna enkelt kan koncentreras till just de områden som behöver uppvärmas utan att omgivande partier nämnvärt påverkas. Induktionsvärmningen kan också dator- styras för att ytterligare preciseras till rätta områden.Examples are induction heating, gas and oil. burner and electric heat radiation. Preferred is induction- heating as this can easily be concentrated to just those areas that need to be heated without surrounding lots significantly affected. The induction heating can also be controlled to be further specified to the right areas.
Den kan också utnyttjas fritt i lokalen utan att omgivande miljö påverkas. För att undvika energiförluster genom strålning från det varma stålämnet under tiden som uppvärm- ningen pågår kan med fördel platsen också isoleras mot omgivningen.It can also be used freely in the room without surrounding environment is affected. To avoid energy losses through radiation from the hot steel blank during the heating The site can also be insulated against the surroundings.
EXEMPEL: Stâlämnen, 4, med en längd av ll meter och ett tvär- snitt med i medeltal 1200 mm bredd och 220 mm tjocklek värms i en oljeledad ugn, 1, till ca 12500C. Maximala värmnings- tiden uppgår till 300 ton/timme. I ugnsrummet värms stål- ämnet, 4, från både över- och undersidan med ett stort antal oljebrännare. Detta àstadkoms genom att ämnet, 4, under transporten genom ugnsrummet vilar på totalt 11 stycken vattenkylda bärrör, 2. För att i möjligaste mån undvika en allt för stor temperatursänkning i stålämnet, 4, ovanför bärrören, 2, är dessa försedda med värmeisolerande material, 3, och mellanliggande metalliskt material, 13. Trots detta blir temperatursänkningen i ämnet, 4, påtaglig och leder till för valsningen ogynnsamma temperaturgradienter, 14.EXAMPLE: Steel blanks, 4, with a length of ll meters and a transverse sections with an average width of 1200 mm and a thickness of 220 mm are heated in an oil-fired oven, 1, to about 12500C. Maximum heating the time amounts to 300 tons / hour. In the oven room, steel the substance, 4, from both the top and bottom with a large number oil burners. This is accomplished by the subject, 4, under the transport through the oven room rests on a total of 11 pieces water-cooled carrier pipes, 2. To avoid one as much as possible excessive temperature drop in the steel blank, 4, above the support pipes, 2, these are provided with heat-insulating material, 3, and intermediate metallic material, 13. Nevertheless the temperature drop in the substance, 4, becomes noticeable and leads to unfavorable temperature gradients for rolling, 14.
Vid ugnens, 1, uttagsände kommer det värmda ämnet att naturligt läggas ned i en fix position på en s k varmrullgång, 5, för vidare transport till valsverket.At the outlet end of the oven, 1, the heated substance will be naturally laid down in a fixed position on a so-called hot roller, 5, for further transport to the rolling mill.
QÜÄLITY 10 15 V ,--.-. ..._._..._..__ 447 069 4 I nedläggningspunkten på varmrullgången, 5, värms stálämnet, 4, under en kort tid med hjälp av en värmekälla, 6, som utgöres av induktorer, som är placerade i rullgàngen, 5, så att de värmer ämnet, 4, endast på den sida och på de ställen där bärrören, 2, i ugnen, 1, förorsakat ogynnsamma temperaturgradienter, 14. Induktorerna matas från en för ändamålet särskilt dimensionerad elcentral, 7 och kan regleras var och en för sig. Genom detta väl avpassade värmetillskott, såväl till mängd som område, tillsammans med efterföljande valsning i universalvalsverk, 9, gör att kvarvarande variationer i temperatur hos det valsade ämnet vid framkomsten till färdigparen, ll, är försumbara.QÜÄLITY 10 15 V, --.-. ..._._..._..__ 447 069 4 At the closing point on the hot roller, 5, heat the steel blank, 4, for a short time by means of a heat source, 6, which are inductors located in the roller coaster, 5, so that they heat the substance, 4, only on that side and on those places where the carrier tubes, 2, in the oven, 1, caused unfavorable temperature gradients, 14. The inductors are fed from a for purpose specially dimensioned power plant, 7 and can regulated individually. Through this well-suited heat supplement, both in quantity and area, together with subsequent rolling in universal rolling mill, 9, allows residual variations in temperature of the rolled blank on arrival at the finished pair, ll, are negligible.
Efter den induktiva värmningen avskiljs glödskal på âmnesytan i en sprutbox, 8. I universalvalsverk, 9, coilbox, 10, och färdigpar, 11, valsas ämnet ut till ett långt band, som efter kylning rullar samman till en bandrulle i en haspel, 12. pooR QUÅUWAfter the inductive heating, the coals are separated the blank surface in a spray box, 8. In universal rolling mill, 9, coil box, 10, and finished pairs, 11, the blank is rolled out into a long strip, which after cooling rolls together into a strip roll in one reel, 12. pooR QUÅUW
Claims (1)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401102A SE447069B (en) | 1984-02-29 | 1984-02-29 | SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTOR |
DE8585901132T DE3572608D1 (en) | 1984-02-29 | 1985-02-27 | Method for the reduction of local temperature irregularity in steel slabs at rolling |
AU39958/85A AU3995885A (en) | 1984-02-29 | 1985-02-27 | Satt att minska temperaturojamnheten hos stalamnen vid varmvalsning |
PCT/SE1985/000092 WO1985003891A1 (en) | 1984-02-29 | 1985-02-27 | Method for the reduction of local temperature irregularity in steel slabs at rolling |
EP19850901132 EP0208679B1 (en) | 1984-02-29 | 1985-02-27 | Method for the reduction of local temperature irregularity in steel slabs at rolling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8401102A SE447069B (en) | 1984-02-29 | 1984-02-29 | SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTOR |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8401102D0 SE8401102D0 (en) | 1984-02-29 |
SE8401102L SE8401102L (en) | 1985-08-30 |
SE447069B true SE447069B (en) | 1986-10-27 |
Family
ID=20354939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8401102A SE447069B (en) | 1984-02-29 | 1984-02-29 | SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTOR |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0208679B1 (en) |
AU (1) | AU3995885A (en) |
DE (1) | DE3572608D1 (en) |
SE (1) | SE447069B (en) |
WO (1) | WO1985003891A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI552812B (en) | 2012-01-25 | 2016-10-11 | Sms Group Gmbh | Verfahren und anlage zur herstellung eines metallbandes |
JP6428884B1 (en) | 2017-09-11 | 2018-11-28 | 愛知製鋼株式会社 | Magnetosensitive wire for magnetic sensor and method for manufacturing the same |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417030A (en) * | 1943-12-22 | 1947-03-04 | Olin Ind Inc | Electric induction furnace for continuously heating metal strips |
US2722589A (en) * | 1950-11-30 | 1955-11-01 | Ohio Crankshaft Co | Method and apparatus for uniformly heating intermittently moving metallic material |
US3080468A (en) * | 1960-03-07 | 1963-03-05 | Lindberg Eng Co | Billet heater control and method |
US3264856A (en) * | 1963-06-26 | 1966-08-09 | Canada Steel Co | Hot strip mill |
GB1040420A (en) * | 1963-11-19 | 1966-08-24 | United Eng Foundry Co | Method and apparatus for controlling the temperature of hot strip |
GB1243009A (en) * | 1967-12-09 | 1971-08-18 | English Electric Co Ltd | Methods and apparatus for heat treating a body |
US3471673A (en) * | 1968-02-19 | 1969-10-07 | United States Steel Corp | Apparatus for inductively heating a traveling metal slab |
US3587268A (en) * | 1968-09-17 | 1971-06-28 | Francis H Bricmont | Workpiece temperature equalization in rolling of steel |
US3596036A (en) * | 1970-03-16 | 1971-07-27 | Ajax Magnethermic Corp | Induction heater |
US3715556A (en) * | 1970-10-05 | 1973-02-06 | Park Ohio Industries Inc | Slab heating method and apparatus |
US4182146A (en) * | 1976-01-10 | 1980-01-08 | Hoesch Werke Aktiengesellschaft | Hot rolling mill |
JPS531614A (en) * | 1976-06-26 | 1978-01-09 | Toyo Alum Kk | Induction heating equipment |
EP0005340B1 (en) * | 1978-04-27 | 1983-01-26 | Encomech Engineering Services Limited | Heat shield arrangements for material e.g. in strip or bar form |
-
1984
- 1984-02-29 SE SE8401102A patent/SE447069B/en not_active IP Right Cessation
-
1985
- 1985-02-27 WO PCT/SE1985/000092 patent/WO1985003891A1/en not_active Application Discontinuation
- 1985-02-27 AU AU39958/85A patent/AU3995885A/en not_active Abandoned
- 1985-02-27 DE DE8585901132T patent/DE3572608D1/en not_active Expired
- 1985-02-27 EP EP19850901132 patent/EP0208679B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0208679A1 (en) | 1987-01-21 |
SE8401102L (en) | 1985-08-30 |
AU3995885A (en) | 1985-09-24 |
SE8401102D0 (en) | 1984-02-29 |
WO1985003891A1 (en) | 1985-09-12 |
EP0208679B1 (en) | 1989-08-30 |
DE3572608D1 (en) | 1989-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100537792C (en) | Technique for induction heating steel rod tempering heat treatment | |
EP0181830B1 (en) | Method and apparatus for heating a strip of metallic material in a continuous annealing furnace | |
CN201144263Y (en) | Steel bar quenching and high temperature tempering production line | |
US4708325A (en) | Induction heating system for reheating the edges of a metallurgical product and variable air gap inductor associated therewith | |
AU629722B2 (en) | Induction furnace for heating and temperature homogenization in hot-rolling of thin steel strips | |
GB836560A (en) | Relating to an apparatus for bending glass sheets | |
US3385579A (en) | Slab heating apparatus | |
SE447069B (en) | SET TO REDUCE LOCAL TEMPERATURE INNOVATIVES ON THE HEAT COLLECTOR | |
CN101250620A (en) | Method for avoiding cold rolled strip bonding and bonding-free hood-type annealing furnace | |
JPS6056406B2 (en) | Continuous annealing furnace with induction heating section | |
US4857687A (en) | Induction apparatus for heating edge portion of billet | |
US5466309A (en) | Metal strip treatment installation | |
US4470808A (en) | Pushing furnace for heating steel | |
CN2714577Y (en) | Electromagnetic suspension continuous heat treatment furnace for steel strip | |
Enghofer et al. | Experience with 100% hydrogen annealing at LTV's Indiana Harbor No. 3 sheet mill | |
JPS6320287B2 (en) | ||
JPS59134588A (en) | Method of inductively heating metal piece side terminal | |
ES8700697A1 (en) | Continuous annealing method and apparatus for cold rolled steel strips. | |
Haldenwang | Inductive intermediate reheating in rolling mills | |
Taya et al. | Development of the strip temperature control technique for a continuous annealing line | |
JP2001172721A (en) | Method for compensating slab temperature and equipment for compensating slab temperature | |
SU688999A1 (en) | Inductor-transformer | |
SU1735700A1 (en) | Support for transportation of metal in continuous furnace | |
JP3147174B2 (en) | Continuous heating furnace for billets and its heating method | |
Quickenden | Induction for the'Hot Link' |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8401102-2 Effective date: 19921005 Format of ref document f/p: F |