CN101502878A - Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof - Google Patents
Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof Download PDFInfo
- Publication number
- CN101502878A CN101502878A CNA2009100144933A CN200910014493A CN101502878A CN 101502878 A CN101502878 A CN 101502878A CN A2009100144933 A CNA2009100144933 A CN A2009100144933A CN 200910014493 A CN200910014493 A CN 200910014493A CN 101502878 A CN101502878 A CN 101502878A
- Authority
- CN
- China
- Prior art keywords
- section
- tundish
- connecting plate
- metering nozzle
- casting blank
- 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
Links
Images
Landscapes
- Continuous Casting (AREA)
- Ceramic Products (AREA)
Abstract
The invention provides a transformation method of different casting blank sections of a tundish of a profiled blank conticaster, belonging to the technical field of the profiled blank continuous casting tundish process in ferrous metallurgy. In the transformation method, the same tundish reaches the mutual transformation of the tundish applied to three different casting blank sections by the replacements of a connecting board (3), a sizing nozzle (8) and magnesia pre-casting bricks. The transformation method is characterized in that a positioning hole (12) for installing the sizing nozzle is changed to be on the replaceable connecting board (3) from a cladding (1); two pre-casting bricks are installed between a well block (9) of the sizing nozzle and a permanent lining (6), and the three installation spaces in different lengths of the smallest casting blank section, the middle casting blank section and the biggest casting blank section are satisfied by three combination methods of the magnesia pre-casting bricks. The transformation method of the different tundish casting billet sections of the beam blank caster is applied to the tundish of the profiled blank conticaster and solves the mutual transformation problem of the tundish that the same tundish is applied to three different casting blank sections.
Description
The technology neck
The present invention relates to a kind of conversion method of special-shaped billet continuous casting machine tundish different casting blank section, belong to casting for shaped blank continuous tundish technology field in the Ferrous Metallurgy.
Background technology
Special-shaped billet continuous casting machine is because of the particularity of its section, it is the novel continuous casting process that integrates round base, square billet, slab, tundish has and the different process characteristic of other traditional conticaster tundish, each casting stream adopts 2 metering nozzles cast, and the spacing difference of 2 metering nozzles of each casting stream of different casting blank section, cast internal diameter difference.Laigang big H shaped steel special-shaped billet continuous casting machine is the domestic specification maximum of Laigang and VAI cooperation construction, the special-shaped billet continuous casting machine that web is the thinnest, also is the special-shaped base production line of the later on domestic second of Ma Gang that continues, and designs three casting blank sections.First 3 machine of horse steel, 3 stream shaped blank conticasters, go into operation in September, 1998, design two casting blank sections, each casting blank section adopts special-purpose tundish, the continuous casting tundish of other types such as employing of middle water containing opening mounting process and square billet, rectangular bloom, slab class roughly the same, the subject matter that exists is that the tundish of different casting blank section can not be changed use, causes producing being multiplied with the tundish involucrum.
Summary of the invention
At the defective of casting for shaped blank continuous tundish process characteristic and prior art, the invention provides a kind of casting for shaped blank continuous tundish of different casting blank section and conversion method of different casting blank section thereof of being used for.
The invention provides a kind of connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section, described connecting plate, vertical section structure is " protruding " shape, cross section shape is a rectangle, length a is 350～420mm, width b is 250～300mm, gross thickness c is 30～40mm, " protruding " platform thickness h is 20～25mm, is provided with the metering nozzle locating hole on the connecting plate center line, and the locating hole vertical section structure is trapezoidal, cross section shape is circular, external diameter+20～30mm that last aperture R is the metering nozzle brick cup, external diameter+10～15mm that following aperture r is the metering nozzle brick cup is provided with bolt hole around " protruding " platform bottom;
Described magnesia prefabricated section is the cuboid that two structures are identical, vary in size, be called little prefabricated section and big prefabricated section, the length of little prefabricated section is 1/2 of the metering nozzle brick cup of minimum casting blank section and permanent liner spacing L, and the length of big prefabricated section is 1/2 of the metering nozzle brick cup of maximum casting blank section and permanent liner spacing L; The width of little prefabricated section, big prefabricated section is identical, is the width of metering nozzle connecting plate, and is highly also identical, is the thickness of bag end permanent liner.
The metering nozzle locating hole is according to the centre-to-centre spacing of two metering nozzles of different casting blank section, designs on the connecting plate center line.Be provided with six square bolt holes around " protruding " platform bottom.Six square bolt holes are the six square bolt holes of M18～M24, and the number in six square bolt holes is 4～16, preferred 8.
Described connecting plate, each metering nozzle adopts a connecting plate, and interval 150～180mm pours into a mould permanent liner between two connecting plates between the connecting plate, and each connecting plate is connected and fixed with bolt and involucrum.
Preferably, described bolt is six square bolts of M18～M24.The number of six square bolts is identical with the number in six square bolt holes.
Described connecting plate, each metering nozzle adopts a connecting plate, 150～180mm at interval between two connecting plates, the cast permanent liner, each connecting plate is connected and fixed with 8 six square bolts and the involucrum of M18～M24.
Preferably, the metering nozzle connecting plate of minimum casting blank section and the metering nozzle connecting plate of maximum casting blank section are general, universal method: when designing the metering nozzle locating hole on the connecting plate, the metering nozzle installation site of orientating minimum casting blank section as by the locating hole of a left side → right, by the right side → left to the metering nozzle installation site of orientating maximum casting blank section as of locating hole, promptly change, realize that the metering nozzle connecting plate of the metering nozzle connecting plate of minimum casting blank section and maximum casting blank section is general by the left and right direction of connecting plate.
Preferably, connecting plate adopts the heat resisting cast steel machined to make, and length a is 415mm, and width b is 270mm, and gross thickness c is 35mm, and wherein the boss thickness h is 20mm, metering nozzle locating hole aperture, and last aperture R is 97mm, following aperture r is 87mm.
Described magnesia prefabricated section, form by following material by weight percentage: magnesite clinker: 10～5mm granularity 25～30%,＜5～3mm granularity 12～15%,＜3～1mm granularity 22～28%,＜1～0.074mm granularity 20～22%,＜0.074mm granularity 10～12%; Steel fibre 0.5～0.8%; Sodium phosphate trimer 0.1～0.2%; Silicon powder 1.2～2.0%.
Described magnesite clinker is for containing the magnesia of MgO92% (weight ratio).
Preferably, described magnesia prefabricated section is made up of following material: magnesite clinker (MgO92%): 10～5mm28% by weight percentage; 5～3mm14%, 3～1mm25%, 1～0.074mm21%,＜0.074mm9.85%; Steel fibre 0.5%; Sodium phosphate trimer 0.15%; Silicon powder 1.5%.
The preparation method of described magnesia prefabricated section is, with material by after the described proportioning weighing, add to do in the batch mixer and mixed 2～3 minutes, the water that adds material gross weight 6～8%, wet mixing 4～6 minutes is put into loose tool with the material feeding of watering that mixes, uniform distribution, use vibrating head vibration moulding, when no big bubble was emerged, the green compact of prefabricated component were finished; Maintenance is 2 days under 25 ℃ of environment temperatures, in 15～300 ℃ of bakings with cooled off 72～84 hours, is divided into the next stage: (1) 15～150 ℃, heat up heating-up time 9h with 15 ℃/h programming rate; (2) 150 ℃ of insulations, time 24h; (3) 150 ℃, heat up with 10 ℃/h programming rate, time 15h is warming up to 300 ℃; (4) 300 ℃ of insulations, time 12h, (5) truce is cooled off naturally, time 12～24h, prefabricated component completes.
The invention provides a kind of casting for shaped blank continuous tundish that is used for different casting blank section, comprise tundish involucrum (1), connecting plate (3), magnesia prefabricated section, tundish permanent liner (6), metering nozzle (8), metering nozzle brick cup (9), tundish working lining (10), metering nozzle (8) is installed the location by the metering nozzle locating hole (12) on the connecting plate (3), and connecting plate (3) is fixedlyed connected with involucrum (1) with bolt (2); The top suit metering nozzle brick cup (9) of metering nozzle (8), magnesian ramming mass (7) filling of two prefabricated sections of space mounting between metering nozzle brick cup (9) and the permanent liner (6), the gap between gap between metering nozzle brick cup (9) and the tundish permanent liner (6) and magnesia prefabricated section and the tundish permanent liner (6), tamping.
Described connecting plate and magnesia prefabricated section are the structure of above-mentioned connecting plate and magnesia prefabricated section; The installation of prefabricated section is selected according to the situation of casting blank section: the tundish of minimum casting blank section is installed two little magnesia prefabricated sections (4), the tundish of middle casting blank section is installed little magnesia prefabricated section (4) and big magnesia prefabricated section (5), and the tundish of maximum casting blank section is installed two big magnesia prefabricated sections (5).
Satisfy the installing space of three kinds of different lengths of minimum casting blank section, middle casting blank section, maximum casting blank section by two little magnesia prefabricated sections (4), little magnesia prefabricated section (4) with three kinds of combined methods of big magnesia prefabricated section (5), two big magnesia prefabricated sections (5).
A kind of conversion method of special-shaped billet continuous casting machine tundish different casting blank section, concrete conversion method step is as follows:
1) tundish is installed the locating hole (12) of metering nozzle, change on the removable connecting plate (3) by involucrum, connecting plate (3) is according to the centre-to-centre spacing Design Orientation hole (12) of two metering nozzles (8) of different casting blank section, each metering nozzle (8) adopts a connecting plate (3), and connecting plate (3) adopts bolt (2) to fixedly connected with involucrum (1);
2) design and produce a mouth of a river fetal membrane, at the bottom of the cast tundish bag during permanent liner (6), earlier fetal membrane is placed on the top of the connecting plate (3) in the tundish involucrum, the longitudinal centre line of metering nozzle locating hole (12) overlaps on the longitudinal centre line that makes fetal membrane and the connecting plate, permanent liner (6) at the bottom of the pouring ladle then, health after 1～2 day hangs out mouth of a river fetal membrane under the natural conditions.Promptly do not pour into a mould permanent liner, reserve the installing space of metering nozzle (8) at the position of connecting plate (3).
3) after tundish permanent liner (6) construction finishes, construction working lining (10).
4) after the construction of working lining lining finishes, metering nozzle locating hole (12) position on connecting plate, metering nozzle (8) is installed earlier, the top suit metering nozzle brick cup (9) of metering nozzle (8), space mounting prefabricated section between metering nozzle brick cup (9) and the permanent liner (6): the conversion of special-shaped billet continuous casting machine tundish different casting blank section is finished with magnesian ramming mass (7) filling, tamping in the gap between gap between metering nozzle brick cup (9) and the tundish permanent liner (6) and magnesia prefabricated section and the tundish permanent liner (6).
The installation of prefabricated section is selected according to the situation of casting blank section: the tundish of minimum casting blank section is installed two little magnesia prefabricated sections (4), the tundish of middle casting blank section is installed little magnesia prefabricated section (4) and big magnesia prefabricated section (5), and the tundish of maximum casting blank section is installed two big magnesia prefabricated sections (5).
Preferably, 8 six square bolts of the preferred M24 of the described bolt of step 1) (2).Described mouth of a river fetal membrane, vertical section are trapezoidal, and trapezoidal last edge lengths is than the big 10～20mm of following edge lengths (being convenient to the demoulding), and the cross section is a rectangle, adopt the common carbon steel board of 15～25mm to be welded, fetal membrane top welding 2 suspension ring (13).
Same tundish reaches the mutual conversion of the tundish that is applicable to three different casting blank sections by changing connecting plate (3), metering nozzle (8) and little magnesia prefabricated section (4), big magnesia prefabricated section (5).
The present invention is successful Application on the big H shaped steel of Laiwu iron and steel group silver mountain shaped steel Co., Ltd steel mill casting for shaped blank continuous tundish.Design 3 casting blank sections altogether, be respectively BB1 555 * 440 * 90, BB2 750 * 370 * 90, BB3 1024 * 390 * 90, the spacing of 2 metering nozzles of its correspondence is respectively 407mm, 608mm, 869mm.Adopt the present invention, effect is good: (1) same special-shaped billet continuous casting machine tundish, by changing connecting plate, metering nozzle and magnesia prefabricated section, reach the mutual conversion of the tundish that is applicable to three different casting blank sections, satisfied special-shaped billet continuous casting machine tundish technological requirement, reduced and produced with tundish involucrum quantity and production setting up expenses; (2) the metering nozzle connecting plate is simple in structure, demolition, installation are quick and easy, solved the involucrum local deformation problem at long term high temperature condition installation metering nozzle position and the metering nozzle of initiation and worn the steel accident: the former usefulness of (3) magnesia prefabricated replacement is watered material feeding, quick construction, convenience, solved metering nozzle brick cup position and oozed steel, wear the steel accident, special-shaped base tundish reached more than 36 hours service life because of what water that the material feeding high-temperature shrinkage causes.
Description of drawings
Fig. 1 is a special-shaped billet continuous casting machine tundish structure schematic diagram.
Fig. 2 is the metering nozzle position partial enlarged drawing of Fig. 1.
Fig. 3 is the mouth of a river plate structure schematic diagram that is located by connecting.
Fig. 4 is the mouth of a river plate structure profile that is located by connecting.
Fig. 5 is a mouth of a river fetal membrane structural representation.
Fig. 6 is magnesia preform structure schematic diagram.
Wherein, 1, the tundish involucrum, 2, six square bolts, 3, metering nozzle connecting plate, 4, little magnesia prefabricated section, 5, big magnesia prefabricated section, 6, tundish permanent liner, 7, magnesian ramming mass, 8, metering nozzle, 9, the metering nozzle brick cup, 10, tundish working lining, 11, six square bolt holes, 12, the metering nozzle locating hole, 13, mouth of a river fetal membrane suspension ring.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing and embodiment:
Embodiment:
A kind of casting for shaped blank continuous tundish that is used for different casting blank section, comprise tundish involucrum 1, connecting plate 3, magnesia prefabricated section, tundish permanent liner 6, metering nozzle 8, metering nozzle brick cup 9, tundish working lining 10, metering nozzle 8 is installed the location by the metering nozzle locating hole on the connecting plate 3 12, and 8 six square bolts 2 of connecting plate 3 usefulness M24 are fixedlyed connected with involucrum 1; The top suit metering nozzle brick cup 9 of metering nozzle 8, magnesian ramming mass 7 fillings of two prefabricated sections of space mounting between metering nozzle brick cup 9 and the permanent liner 6, the gap between the gap between metering nozzle brick cup 9 and the tundish permanent liner 6 and little magnesia prefabricated section and the tundish permanent liner 6, tamping.
Three kinds of combined methods by two little magnesia prefabricated sections 4, little magnesia prefabricated section 4 and big magnesia prefabricated section 5, two big magnesia prefabricated sections 5 satisfy the installing space of three kinds of different lengths of minimum casting blank section, middle casting blank section, maximum casting blank section;
Fig. 1 is special-shaped base tundish metering nozzle scheme of installation, and the meaning of expression is: conticaster has three casting streams, and each casting stream is by 2 metering nozzle cast.When conticaster was produced, the casting blank section of three casting streams of same tundish was the same, and promptly the metering nozzle and the installation site of three of same tundish casting streams are the same.
When same tundish is changed casting blank section, simultaneously the metering nozzle and the installation site of three casting streams are changed simultaneously.Promptly on same position, replacing by connecting plate, magnesia prefabricated section etc. reaches goal of the invention.
Described connecting plate 3, adopt the heat resisting cast steel machined to make, vertical section structure is " protruding " shape, and cross section shape is a rectangle, and length a is 415mm, width b is 270mm, gross thickness c is 35mm, and wherein the boss thickness h is 20 mm, metering nozzle locating hole aperture, last aperture R is 97mm, and following aperture r is 87mm.
Described little magnesia prefabricated section 4, big magnesia prefabricated section 5 are the cuboid that two structures are identical, vary in size, the length of little prefabricated section 4 is 1/2 of the metering nozzle brick cup of minimum casting blank section and permanent liner spacing L, and the length of big prefabricated section 5 is 1/2 of the metering nozzle brick cup of maximum casting blank section and permanent liner spacing L; The width of little prefabricated section, big prefabricated section is identical, is the width of metering nozzle connecting plate, and is highly also identical, is the thickness of bag end permanent liner
Described little magnesia prefabricated section 4, big magnesia prefabricated section 5 are made up of following material: magnesite clinker (MgO92%): 10～5mm28% by weight percentage; 5～3mm14%, 3～1mm25%, 1～0.074mm22%,＜0.074mm9.85%; Steel fibre 0.5%; Sodium phosphate trimer 0.15%; Silicon powder 1.5%.
The preparation method of described magnesia prefabricated section is, with material by after the described proportioning weighing, add to do in the batch mixer and mixed 2～3 minutes, the water that adds material gross weight 6～8%, wet mixing 4～6 minutes is put into loose tool with the material feeding of watering that mixes, uniform distribution, use vibrating head vibration moulding, when no big bubble was emerged, the green compact of prefabricated component were finished; Maintenance is 2 days under 25 ℃ of environment temperatures, in 15～300 ℃ of bakings with cooled off 72～84 hours, is divided into the next stage: (1) 15～150 ℃, heat up heating-up time 9h with 15 ℃/h programming rate; (2) 150 ℃ of insulations, time 24h; (3) 150 ℃, heat up with 10 ℃/h programming rate, time 15h is warming up to 300 ℃; (4) 300 ℃ of insulations, time 12h, (5) truce is cooled off naturally, time 12～24h, prefabricated component completes.
A kind of conversion method of special-shaped billet continuous casting machine tundish different casting blank section, concrete conversion method step is as follows:
1) tundish is installed the locating hole 12 of metering nozzle, change removable connecting plate into by involucrum) on, connecting plate 3 is according to the centre-to-centre spacing Design Orientation hole 12 of two metering nozzles 8 of different casting blank section, each metering nozzle 8 adopts a connecting plate 3, and connecting plate 3 adopts 8 six square bolts 2 of M24 to fixedly connected with involucrum 1.
2) design and produce a mouth of a river fetal membrane, at the bottom of the cast tundish bag during permanent liner 6, earlier fetal membrane is placed on the top of the connecting plate 3 in the tundish involucrum, the longitudinal centre line of metering nozzle locating hole 12 overlaps on the longitudinal centre line that makes fetal membrane and the connecting plate, permanent liner 6 at the bottom of the pouring ladle then, health after 1～2 day hangs out mouth of a river fetal membrane under the natural conditions.Promptly do not pour into a mould permanent liner, reserve the installing space of metering nozzle 8 at the position of connecting plate 3.
Described mouth of a river fetal membrane, as shown in Figure 5, the vertical section is trapezoidal, and trapezoidal last edge lengths is than the big 10～20mm of following edge lengths (being convenient to the demoulding), and the cross section is a rectangle, adopts the common carbon steel board of 15～25mm to be welded, 2 suspension ring 13 of fetal membrane top welding.
3) after 6 constructions of tundish permanent liner finish, construction working lining 10.
4) after working lining 10 constructions finish, metering nozzle locating hole 12 positions on connecting plate 3, metering nozzle 8 is installed earlier, the top suit metering nozzle brick cup 9 of metering nozzle 8, space mounting prefabricated section between metering nozzle brick cup 9 and the permanent liner 6: the conversion of special-shaped billet continuous casting machine tundish different casting blank section is finished with magnesian ramming mass 7 fillings, tamping in the gap between gap between metering nozzle brick cup 9 and the tundish permanent liner 6 and magnesia prefabricated section 4, magnesia prefabricated section 5 and the tundish permanent liner 6.
The installation of prefabricated section is selected according to the situation of casting blank section: the tundish of minimum casting blank section is installed two little magnesia prefabricated sections 4, the tundish of middle casting blank section is installed little magnesia prefabricated section) and big magnesia prefabricated section 5, the tundish of maximum casting blank section is installed two big magnesia prefabricated sections 5.
The present invention is applicable to the special-shaped billet continuous casting machine tundish, solved the mutual transfer problem of tundish that same tundish is used for three different casting blank sections, reduced and produced with tundish involucrum quantity and production setting up expenses, the involucrum local deformation problem and the metering nozzle that have solved metering nozzle position under the long term high temperature condition are worn the steel accident, the material feeding of watering that has solved metering nozzle brick cup position is oozed steel, is worn the steel accident, and special-shaped base tundish is reached more than 36 hours service life.
Embodiment 2:
Other are with embodiment 1, and difference is:
Described connecting plate, vertical section structure are " protruding " shape, and cross section shape is a rectangle, length a is 360mm, width b is 250mm, and gross thickness c is 40mm, and " protruding " platform thickness h is 25mm, on the connecting plate center line, be provided with the metering nozzle locating hole, the locating hole vertical section structure is trapezoidal, and cross section shape is circular, and last aperture R is 102mm, following aperture r is 92mm, designs the six square bolt holes of 8 M24 around " protruding " platform bottom.
Each metering nozzle adopts a connecting plate, and interval 150～180mm pours into a mould permanent liner between two connecting plates between the connecting plate, and each connecting plate is connected and fixed with bolt and involucrum.
Described little magnesia prefabricated section 4, big magnesia prefabricated section 5 are made up of following material: magnesite clinker (MgO92%): 10～5mm30% by weight percentage; 5～3mm12%, 3～1mm25%, 1～0.074mm20%,＜0.074mm10%; Steel fibre 0.8%; Sodium phosphate trimer 0.2%; Silicon powder 2.0%.
Claims (10)
1. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section, described connecting plate, vertical section structure is " protruding " shape, cross section shape is a rectangle, length a is 350～420mm, width b is 250～300mm, gross thickness c is 30～40mm, " protruding " platform thickness h is 20～25mm, is provided with the metering nozzle locating hole on the connecting plate center line, and the locating hole vertical section structure is trapezoidal, cross section shape is circular, external diameter+20～30mm that last aperture R is the metering nozzle brick cup, external diameter+10～15mm that following aperture r is the metering nozzle brick cup is provided with bolt hole around " protruding " platform bottom;
Described magnesia prefabricated section is the cuboid that two structures are identical, vary in size, be called little prefabricated section and big prefabricated section, the length of little prefabricated section is 1/2 of the metering nozzle brick cup of minimum casting blank section and permanent liner spacing L, and the length of big prefabricated section is 1/2 of the metering nozzle brick cup of maximum casting blank section and permanent liner spacing L; The width of little prefabricated section, big prefabricated section is identical, is the width of metering nozzle connecting plate, and is highly also identical, is the thickness of bag end permanent liner;
Described magnesia prefabricated section, form by following material by weight percentage: magnesite clinker: 10～5mm granularity 25～30%,＜5～3mm granularity 12～15%,＜3～1mm granularity 22～28%,＜1～0.074mm granularity 20～22%,＜0.074mm granularity 10～12%; Steel fibre 0.5～0.8%; Sodium phosphate trimer 0.1～0.2%; Silicon powder 1.2～2.0%,
Described magnesite clinker is for containing the magnesia of MgO92% (weight ratio).
2. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that, be provided with six square bolt holes around " protruding " platform bottom, six square bolt holes are the six square bolt holes of M18～M24, and the number in six square bolt holes is 4～16.
3. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that, described connecting plate, each metering nozzle adopts a connecting plate, interval 150～180mm between two connecting plates, pour into a mould permanent liner between the connecting plate, each connecting plate is connected and fixed with bolt and involucrum.
4. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that, described connecting plate, each metering nozzle adopts a connecting plate, interval 150～180mm between two connecting plates, the cast permanent liner, each connecting plate is connected and fixed with 8 six square bolts and the involucrum of M18～M24.
5. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that, the metering nozzle connecting plate of minimum casting blank section and the metering nozzle connecting plate of maximum casting blank section are general, universal method: when designing the metering nozzle locating hole on the connecting plate, the metering nozzle installation site of orientating minimum casting blank section as by the locating hole of a left side → right, by the right side → left to the metering nozzle installation site of orientating maximum casting blank section as of locating hole, an i.e. left side by connecting plate, right is changed, and realizes that the metering nozzle connecting plate of the metering nozzle connecting plate of minimum casting blank section and maximum casting blank section is general.
6. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that, connecting plate adopts the heat resisting cast steel machined to make, length a is 415mm, and width b is 270mm, and gross thickness c is 35mm, wherein the boss thickness h is 20mm, metering nozzle locating hole aperture, last aperture R is 97mm, following aperture r is 87mm.
7. a connecting plate and magnesia prefabricated section that is used for the casting for shaped blank continuous tundish of different casting blank section as claimed in claim 1, it is characterized in that the preparation method of described magnesia prefabricated section is, with material by after the described proportioning weighing, add to do in the batch mixer and mixed 2～3 minutes, the water that adds material gross weight 6～8%, wet mixing 4～6 minutes is put into loose tool with the material feeding of watering that mixes, uniform distribution, use vibrating head vibration moulding, when no big bubble was emerged, the green compact of prefabricated component were finished; Maintenance is 2 days under 25 ℃ of environment temperatures, in 15～300 ℃ of bakings with cooled off 72～84 hours, is divided into the next stage: (1) 15～150 ℃, heat up heating-up time 9h with 15 ℃/h programming rate; (2) 150 ℃ of insulations, time 24h; (3) 150 ℃, heat up with 10 ℃/h programming rate, time 15h is warming up to 300 ℃; (4) 300 ℃ of insulations, time 12h, (5) truce is cooled off naturally, time 12～24h, prefabricated component completes.
8. casting for shaped blank continuous tundish that is used for different casting blank section, comprise tundish involucrum (1), connecting plate (3), magnesia prefabricated section, tundish permanent liner (6), metering nozzle (8), metering nozzle brick cup (9), tundish working lining (10), metering nozzle (8) is installed the location by the metering nozzle locating hole (12) on the connecting plate (3), and connecting plate (3) is fixedlyed connected with involucrum (1) with bolt (2); The top suit metering nozzle brick cup (9) of metering nozzle (8), two prefabricated sections of space mounting between metering nozzle brick cup (9) and the permanent liner (6), magnesian ramming mass (7) filling of gap between gap between metering nozzle brick cup (9) and the tundish permanent liner (6) and magnesia prefabricated section and the tundish permanent liner (6), tamping
Described connecting plate and magnesia prefabricated section are the structure of described connecting plate of claim 1 and magnesia prefabricated section; The installation of prefabricated section is selected according to the situation of casting blank section: the tundish of minimum casting blank section is installed two little magnesia prefabricated sections (4), the tundish of middle casting blank section is installed little magnesia prefabricated section (4) and big magnesia prefabricated section (5), and the tundish of maximum casting blank section is installed two big magnesia prefabricated sections (5).
9. the conversion method of a special-shaped billet continuous casting machine tundish different casting blank section, concrete conversion method step is as follows:
1) tundish is installed the locating hole (12) of metering nozzle, change on the removable connecting plate (3) by involucrum, connecting plate (3) is according to the centre-to-centre spacing Design Orientation hole (12) of two metering nozzles (8) of different casting blank section, each metering nozzle (8) adopts a connecting plate (3), and connecting plate (3) adopts bolt (2) to fixedly connected with involucrum (1);
2) design and produce a mouth of a river fetal membrane, at the bottom of the cast tundish bag during permanent liner (6), earlier fetal membrane is placed on the top of the connecting plate (3) in the tundish involucrum, the longitudinal centre line of metering nozzle locating hole (12) overlaps on the longitudinal centre line that makes fetal membrane and the connecting plate, permanent liner (6) at the bottom of the pouring ladle then, and health is after 1～2 day under the natural conditions, mouth of a river fetal membrane is hung out, promptly do not pour into a mould permanent liner, reserve the installing space of metering nozzle (8) at the position of connecting plate (3)
3) after tundish permanent liner (6) construction finishes, construction working lining (10),
4) after the construction of working lining lining finishes, metering nozzle locating hole (12) position on connecting plate, metering nozzle (8) is installed earlier, the top suit metering nozzle brick cup (9) of metering nozzle (8), space mounting prefabricated section between metering nozzle brick cup (9) and the permanent liner (6): the conversion of special-shaped billet continuous casting machine tundish different casting blank section is finished with magnesian ramming mass (7) filling, tamping in the gap between gap between metering nozzle brick cup (9) and the tundish permanent liner (6) and magnesia prefabricated section and the tundish permanent liner (6).
10. the conversion method of a special-shaped billet continuous casting machine tundish different casting blank section as claimed in claim 9, it is characterized in that, the installation of prefabricated section is selected according to the situation of casting blank section: the tundish of minimum casting blank section is installed two little magnesia prefabricated sections (4), the tundish of middle casting blank section is installed little magnesia prefabricated section (4) and big magnesia prefabricated section (5), the tundish of maximum casting blank section is installed two big magnesia prefabricated sections (5)
Preferably, 8 six square bolts of the preferred M24 of the described bolt of step 1) (2).Described mouth of a river fetal membrane, vertical section are trapezoidal, and trapezoidal last edge lengths is than the big 10～20mm of following edge lengths (being convenient to the demoulding), and the cross section is a rectangle, adopt the common carbon steel board of 15～25mm to be welded, fetal membrane top welding 2 suspension ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100144933A CN101502878B (en) | 2009-02-27 | 2009-02-27 | Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100144933A CN101502878B (en) | 2009-02-27 | 2009-02-27 | Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502878A true CN101502878A (en) | 2009-08-12 |
| CN101502878B CN101502878B (en) | 2011-02-16 |
Family
ID=40975323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100144933A Expired - Fee Related CN101502878B (en) | 2009-02-27 | 2009-02-27 | Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101502878B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522873A (en) * | 2014-02-07 | 2015-08-12 | Siemens Vai Metals Tech Gmbh | A method of forming tailored cast blanks |
| CN109482832A (en) * | 2018-12-06 | 2019-03-19 | 中冶南方连铸技术工程有限责任公司 | A kind of conticaster suitable for unsymmetric structure Hot Metal in Beam Blank |
| CN110508762A (en) * | 2019-09-12 | 2019-11-29 | 石横特钢集团有限公司 | A kind of company's pouring technique of quick-replaceable tundish |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745211B1 (en) * | 1996-02-22 | 1998-04-30 | Vesuvius France Sa | DISTRIBUTOR HAVING A TUBE CHANGER AND PLATE FOR THE TUBE CHANGER |
| CH691762A5 (en) * | 2000-06-28 | 2001-10-15 | Main Man Inspiration Ag | Intermediate container used for casting molten metal in a continuous casting machine has an inner part divided into at least two chambers connected to each other by an opening |
| MY153640A (en) * | 2005-07-15 | 2015-03-13 | Vesuvius Crucible Co | Continuous casting tundish |
-
2009
- 2009-02-27 CN CN2009100144933A patent/CN101502878B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522873A (en) * | 2014-02-07 | 2015-08-12 | Siemens Vai Metals Tech Gmbh | A method of forming tailored cast blanks |
| US10464111B2 (en) | 2014-02-07 | 2019-11-05 | Primetals Technologies Austria GmbH | Method of forming tailored cast blanks |
| CN109482832A (en) * | 2018-12-06 | 2019-03-19 | 中冶南方连铸技术工程有限责任公司 | A kind of conticaster suitable for unsymmetric structure Hot Metal in Beam Blank |
| CN110508762A (en) * | 2019-09-12 | 2019-11-29 | 石横特钢集团有限公司 | A kind of company's pouring technique of quick-replaceable tundish |
| CN110508762B (en) * | 2019-09-12 | 2021-10-22 | 石横特钢集团有限公司 | Continuous casting process capable of rapidly replacing tundish |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101502878B (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101869970B (en) | Continuous casting tundish slag blocking wall of composite material and production technology | |
| CN101474664B (en) | Flow control device for tundish in special-shaped billet continuous casting machine | |
| CN103331429B (en) | Preparation method of ceramic metal compound prefabricated body | |
| CN101502878B (en) | Special-shaped blank continuous casting machine tundish and conversion method of different casting blank section thereof | |
| CN101524751B (en) | Plate blank tundish for preventing cast-on downward flow and preparation method thereof | |
| CN109797261B (en) | High-performance main iron runner capable of being quickly repaired, and preparation method and construction method thereof | |
| CN201832967U (en) | Slag weir made of composite material for continuous casting tundish | |
| CN201366492Y (en) | Flow control device for tundish of profiled blank conticaster | |
| CN201442090U (en) | Beam blank continuous casting tundish used for different casting blank sections | |
| CN201030424Y (en) | Nesting type continuous casting bakie stabilizer | |
| CN102826864B (en) | Composite-material molten iron desulfurization spray gun and preparation technique thereof | |
| CN103302259B (en) | Continuous-casting tundish slag stopping dam and manufacturing method thereof | |
| CN101502877B (en) | Baffle for special-shaped blank continuous casting machine tundish and preparation method thereof | |
| CN101524750B (en) | Preformed piece for plate blank tundish and preparation method thereof | |
| CN106623883A (en) | Integral pouring process for large steel ladle | |
| CN113843411B (en) | Low-cost composite dry material working lining for two-flow plate blank continuous casting tundish and construction method | |
| CN203565813U (en) | Composite turbulence inhibitor for continuous-casting tundish | |
| CN102827980A (en) | Construction method for casting material in area of blast-furnace tuyere without supporting die | |
| CN202684063U (en) | Turbulence control device for tundish of slab continuous caster | |
| CN113695513B (en) | Preparation method of water glass fiber reinforced plastic sand casting mould | |
| CN103542725B (en) | Method for prolonging service life of guide chute of sintering machine | |
| CN202591604U (en) | Integral forming device of ladle mouth | |
| CN103658577B (en) | A kind of preparation method of continuous casting production combined type turbulence inhibitor | |
| CN209816183U (en) | High-flux composite main iron runner capable of being rapidly repaired and repairing system comprising same | |
| CN201442092U (en) | Slab tundish preventing casting and flowing down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN IRON AND STEEL CO LTD Free format text: FORMER OWNER: LAIWU IRON CO., LTD. Effective date: 20120321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271104 LAIWU, SHANDONG PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120321 Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee after: Jinan Iron and Steel Co., Ltd. Address before: 271104, Xinxing Road, Gangcheng District, Shandong, Laiwu, 21 Patentee before: Laiwu Iron Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG IRON + STEEL CO., LTD. Free format text: FORMER NAME: JINAN IRON AND STEEL CO LTD |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee after: Shandong Iron & Steel Group Co., Ltd. Address before: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee before: Jinan Iron and Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20170227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |