CN1385266A - Side seal mechanism for double-roller continuous casting machine - Google Patents
Side seal mechanism for double-roller continuous casting machine Download PDFInfo
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- CN1385266A CN1385266A CN 02113656 CN02113656A CN1385266A CN 1385266 A CN1385266 A CN 1385266A CN 02113656 CN02113656 CN 02113656 CN 02113656 A CN02113656 A CN 02113656A CN 1385266 A CN1385266 A CN 1385266A
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Abstract
The present invention relates to a side sealing equipment for seal-casting space in metal strip double-roll continuous casting machine, and its technical scheme is as follows: a pair of side sealing mechanisms are respectively and oppositely mounted at sides of end face of roll end of double-roll continuous casting machine, and the end face of its every roll end is opposite to the working face of side sealing plate of said side sealing mechanism and close to it, every side sealing mechanism includes side sealing plate, supporting mechanism for supporting said side sealing plate, supporting component on the supporting mechanism, shortened or extended elastic supporting component between the side sealing plate and supporting component and shortened or extended elastic component between them.
Description
Technical field:
The invention belongs to the lateral seal of metal tape twin-roll continuous casting machine, relate in particular to the lateral seal that is used to seal casting space in the metal sheet band twin-roll continuous casting.
Background technology:
The patent No. is US6082437, its denomination of invention " being used to seal the side seal board of casting space in the metal sheet band twin-roll continuous casting " (Side wall for closing off the casting space of a plant for thetwin-roll continuous casting of thin metal strip).In this patent, select different materials at the different operating condition of side seal board each several part, side seal board be divided into three zones: the direct contact area I of side seal board upper center and metal liquid, side seal board and roll EDGE CONTACT and area I lower end and metal liquid, coagulation band contact area II, side seal board bottom with the surf zone III of roll contact-making surface.Area I must have the good thermal insulation and the corrosivity of anti-metal liquid, and material is aluminium base or silica-base material; Area I I must have higher hardness and corrosion resistance, and material is Sialon ceramics (SIALON); Good thermal insulation must be arranged area I II and than the less hardness of area I I material, material is the graphite or the boron nitride of layer structure.At above-mentioned three zones, side seal board is heat-insulating shield, substrate and anti-leak plate relatively, there is a flaring groove middle and upper part along the vertical center line of substrate, be fixedly connected with heat-insulating shield in this groove, with on the lower surface of strip end face opposing substrates a right angle dovetail groove is arranged, be fixedly connected with the anti-leak plate in this groove, require even, smooth with the plate face of the side seal board of Metal Contact.Substrate, heat-insulating shield and anti-leak plate can adopt traditional approach to be connected, as bonding.
In thin strap continuous casting mechanism, mainly comprise a pair of roll of the parallel reverse rotation of water-cooling system, axis and the side seal board that a pair of symmetry is fixed on two roller both sides of including, wherein the side seal face of inclusion region III is towards roll.The center distance of two roll crowns (roll spacing) is regulated according to the tape thickness of required strip, common strip spacing is 3-10mm, the installation of side seal board must guarantee with the roll two ends near and do not influence the normal rotation of roll, the side seal board lower end must be under the roll horizontal median axis.When strip caster is worked, two rolls solidify the reverse rotation of band direction according to metal liquid, metal liquid dips down from top, two roll centers, forming metal liquid melt pool district above the two roll axis and between side seal, downward liquid flow is also cooled off gradually, is solidified, and forms the continuous strip of desired thickness in lower end, roll axis.
With regard to working condition, the side seal board area I must reduce the cooling velocity of metal liquid in order to avoid premature solidification, and guarantees that liquid does not leak, and therefore requires the area I material therefor to possess good thermal insulation and anti-metal liquid corrosivity; Area I I also is subjected to the thermal stress and the mechanical stress of metal liquid and solidification thin strip except the mechanical stress that is subjected to producing when roll rotates, therefore require area I I material therefor must possess higher intensity, hardness, and higher corrosion resistance; The mechanical stress that area I II produces when being subjected to the roll rotation and the thermal stress and the mechanical stress of solidification thin strip, while must prevent the side seal board upper end, particularly area I I causes the leak of liquid that material breaks causes because of bad working environments, therefore require material to have certain rigidity and corrosion resistance, have layer structure simultaneously.When conticaster was worked, side seal board was subjected to the stress and the friction that produce because of roll rotation or metal liquid and coagulation band motion, each region list and the wearing and tearing of different-thickness are all arranged.With regard to area I II, because material adopts layer structure, the consumption situation of material is exfoliated during wearing and tearing, has therefore avoided the downward leakage of molten steel.Because working condition is very complicated and abominable, very easily cause side seal board area I and area I I to produce and break, the propagation direction of crackle is unoriented.When crackle extends to area I II and area I I junction,, guaranteed the sealing effectiveness of side seal board because the trapezium structure of area I II thickness direction can stop the continuation expansion of crackle.
The main deficiency that exists in this patent is: compare with abominable complicated condition of work in the strip casting process, the wearability and the thermal shock resistance of each regional selected materials of side seal board are relatively poor, cause traditional bonding mode to lose efficacy under the high temperature easily, the life-span of whole side seal board improves limited, has a strong impact on the production efficiency of thin strap continuous casting; Whole side seal mechanism complex structure is the stratiform profiled piece as area I II, and area I I is the high-performance ceramics profiled piece, and the preparation difficulty is bigger; Can't guarantee to obtain the good strip of edge quality; Cost of manufacture is higher.
Summary of the invention:
The objective of the invention is to provides a kind of side seal mechanism of double-roller continuous casting machine at above-mentioned the deficiencies in the prior art, and this mechanism structure is simple, preparation is easy, and cost of manufacture is lower, increases the service life, improve the production efficiency of whole continuous casting, obtain the good metal tape of edge quality.
In order to realize the foregoing invention purpose, its technical scheme is: a pair of side seal mechanism relatively is installed in the roller end end face next door of double-roller continuous casting machine respectively, and the working face that makes the side seal board on its each roller end end face and the side seal mechanism is relative and tap into, each side seal mechanism comprises side seal board, the supporting mechanism of support-side shrouding, on the supporting mechanism relative support member is arranged, the elastic component that shortens or extend is housed between side seal board and the support member with side seal board.Different operating condition according to the side seal board zones of different, each side seal board comprises substrate, heat-insulating shield and ceramic wafer, top and middle and lower part along the vertical center line of substrate same side have different depth respectively, different sizes and the groove that is communicated with, heat-insulating shield is embedded in the upper slot of substrate, the thickness of heat-insulating shield is the 1/5-2/3 of substrate thickness, ceramic wafer is embedded in the middle and lower part groove of substrate, insert refractory material in the filleting, the thickness of ceramic wafer is the 1/10-2/3 of substrate thickness, constitute even smooth working face on the side seal board, base plate bottom is lower than roll horizontal median axis 10～200mm, heat-insulating shield least significant end be higher than roll horizontal median axis 10～100mm, ceramic wafer next-door neighbour heat-insulating shield, its least significant end is 5～100mm under the roll horizontal median axis.During installation, the working face of the side seal board at heat-insulating shield and ceramic wafer place towards and lean on into roll roller end end face, this working face does not influence the normal rotation of roll.In twin-roll continuous casting machine when work,, heat-insulating shield contacts with metal liquid on the roller end, and ceramic wafer contacts with the coagulation band of the metal liquid formation of roll shop building.The main effect of substrate is to provide stable fixation for heat-insulating shield and ceramic block, the huge frictional force when bearing the roll rotation simultaneously, and metal liquid played certain insulation effect; Its material is chosen as the refractory material with higher-strength and wearability, as cement asbestos board or high-alumina brick etc.Heat-insulating shield and roll form metal liquid melt pool district, and main effect is the thermal shock and the corrosion of bearing liquid, and plays good insulation effect, avoids the too early cooling of metal liquid; Its material be chosen as have splendid thermal insulation, resistance to sudden heating and the corrosive refractory material of anti-metal liquid, compound as high-alumina brick or vitreous silica or alumina silicate fibre or other fibre-reinforced composite, clay plate or different materials.The main effect of ceramic wafer is to bear the huge friction of the coagulation band of metal liquid formation and contact the friction that produces with roll, and the edge quality that guarantees metal tape is good, its material is chosen as has higher high temperature hardness, toughness and wearability, and the high-performance ceramics of refractory metal corrosion, as the complex of aluminium oxide or silicon nitride or carborundum or aluminium nitride or boron nitride or zirconia or Sialon ceramics or different materials.
The present invention finishes like this: according to the concrete size of casting apparatus, determine the concrete shape and size of the side seal board each several part of side seal mechanism; According to selected materials, prepare the different piece of side seal board respectively by the common process of refractory material or special cermacis; The heat-insulating shield and the ceramic wafer of preparation are embedded respectively in the substrate, and filleting is inserted filler and bonding, and filler is fire resistant infilling, and as clay, binding agent is common bond or fire resistant special type inorganic binder, and it is toasted; Mosaic surface is polished flat.
The present invention compared with prior art has following technique effect:
This mechanism simple in structure, performance is outstanding, and each several part is in conjunction with firmly, significantly improve service life, with low cost, can obtain the good metal tape of edge quality, can satisfy the needs of following pair of roller continuous casting of metal strip of different operating condition, whole continuous cast structure operating efficiency significantly improves.
This side seal mechanism is fit to the double roller continuous casting device in various rollers footpath.At the size in roller footpath and roller end space, suitably regulate side seal mechanism size and profile and can satisfy two roller continuous casting of metal strip requirements, especially twin-roll thin strip continuous casting requirement.
Drawing key diagram 1 is the assembly structure figure of a side seal mechanism and twin-roll continuous casting machine, and Fig. 2 is the front view of side seal board among the present invention, and Fig. 3 is the A-A profile among Fig. 2, and Fig. 4 is the front view of existing side seal board, and Fig. 5 is the B-B profile among Fig. 4.In Fig. 1-5:
1 is substrate, and 2 is heat-insulating shield,
3 is ceramic wafer, and 4 is the roll of twin-roll continuous casting machine,
5 direction of rotation when working for roll, 6 heat-insulating shields for existing side seal board,
7 substrates for existing side seal board, 8 anti-leak plates for existing side seal board.
The specific embodiment
Below in conjunction with Fig. 1-3, be example with the side seal board that is installed on the roll that roller on the twin-roll continuous casting machine directly is 320mm, illustrated this its:
At first determine the material and the geomery of side seal board each several part.According to the concrete size of casting apparatus, determine the concrete shape and size of side seal board each several part.Substrate 1 can be the cement asbestos board of " Chongqing cement asbestos board factory " preparation, substrate 1 is equicrural ladder plate or triangular plate, when substrate 1 is equicrural ladder plate, two waists can be linearity or arcuation, last bottom width, it is narrow to go to the bottom, its high 170mm, thick 20mm, the isosceles trapezoid groove and the rectangular slot that have two different depths and connection along the top of the same vertical center line on substrate one side and middle and lower part respectively and cooperate with heat-insulating shield 2 and ceramic wafer 3, the degree of depth of this groove are complementary with the thickness of heat-insulating shield 2 and ceramic wafer 3 respectively; Heat-insulating shield 2 can be the vitreous silica plate of " Chongqing heat-insulating shield factory " preparation, is generally isosceles trapezoid, and its two waist is parallel with two waists of substrate, its high 80-100mm, thick 10mm; Ceramic wafer 3 can be the grand high-performance ceramics plate of match of " Yulun High-Technology Ceramic Co., Ltd., Chongqing " preparation, and ceramic wafer is rectangular plate or square plate or trapezoidal plate etc., can be a monolithic ceramic plate, and also several ceramic bondings form ceramic wafer.The ceramic wafer of present embodiment is a rectangular slab, it is long * wide be 50 * 25mm, thick is 4mm.
Heat-insulating shield 2 and ceramic block 3 are embedded respectively in the substrate 1, and filleting is inserted fire clay and water glassy bond, baking, polishes evenly smooth to entire working surface to heat-insulating shield after inlaying and pottery with the working face that substrate is constituted subsequently.So far, side seal board completes.
A pair of side seal mechanism is installed in symmetrically the side, roll 4 two ends of twin-roll continuous casting machine respectively, the working face of its side seal board towards and near the roller end end face, and it is parallel with its roller end end face, the vertical center line of the vertical center line of its working face and the roll gap of roll is in same plane, substrate bottom under the roll axis, and guarantee ceramic wafer bottom under the roll horizontal median axis, horizontal median axis 10mm apart from roll, the least significant end of heat-insulating shield 2 is on the horizontal median axis of roll, apart from the horizontal median axis 40mm of roll; The installation of side seal mechanism must guarantee that side seal board on the side seal mechanism and roll two ends end face are very approaching and not influence the normal rotation of roll, to obtain good sealing effectiveness.
Supporting mechanism on each side seal mechanism comprises bracing frame, is fixed on the bracing frame and the gripper shoe vertical with side seal board, and the side and the support member relative with side seal board that are fixed on bracing frame can be gripper shoe or planar support platform.The elastic component that shrinks or extend is housed between side seal board and the support member, and the described support member of present embodiment is a gripper shoe, and described elastic component is a spring.
During strip caster work, two rollers are pressed the rotation of arrow 5 directions, metal liquid flows downward from roll top, between roller surface and heat-insulating shield, form the liquid melt pool district of sealing, metal liquid flows downward gradually and cools off, forming coagulation band with the ceramic block contact position, coagulation band moves downward along the roll gap of roll, obtains metal sheet band continuous, desired thickness in the roll gap lower end.
Claims (3)
1, the compound side seal mechanism of a kind of double-roller continuous casting machine, comprise the substrate on the side seal board, heat-insulating shield, it is characterized in that a pair of side seal mechanism relatively is installed in the roller end end face next door of double-roller continuous casting machine respectively, and the working face that makes the side seal board on its each roller end end face and the side seal mechanism is relative and tap into, each side seal mechanism comprises side seal board, the supporting mechanism of support-side shrouding, on the supporting mechanism relative support member is arranged with side seal board, the elastic component that shortens or extend is housed between side seal board and the support member, top and middle and lower part along the vertical center line of substrate same side have different depth respectively, different sizes and the groove that is communicated with, heat-insulating shield is embedded in the upper slot of substrate, and ceramic wafer is embedded in the middle and lower part groove of substrate, inserts refractory material in the filleting, constitute even smooth working face on the side seal board; Base plate bottom is lower than roll horizontal median axis 10～200mm, heat-insulating shield least significant end be higher than roll horizontal median axis 10～100mm, ceramic wafer next-door neighbour heat-insulating shield, its least significant end is 5～100mm under the roll horizontal median axis, during the work of twin-roll continuous casting machine, heat-insulating shield contacts with metal liquid on the roller end, and ceramic wafer contacts with the coagulation band that the metal liquid of roll shop building forms.
2, the compound side seal mechanism of double-roller continuous casting machine according to claim 1, it is characterized in that substrate 1 is generally equicrural ladder plate or triangular plate, heat-insulating shield is an equicrural ladder plate, its thickness is the 1/5-2/3mm of substrate thickness, ceramic wafer is rectangular plate or square plate or trapezoidal plate, and the thickness that ceramic wafer is is the 1/10-2/3mm of substrate thickness.
3, the compound side seal mechanism of double-roller continuous casting machine according to claim 1 and 2, it is characterized in that substrate 1 is last bottom width, the cement asbestos board of the isosceles trapezoid shape of going to the bottom narrow, its high 170mm, thick 20mm, along the top of the same vertical center line on substrate one side and in, bottom the isosceles trapezoid groove and the rectangular slot that have two different depths and connection and cooperate with heat-insulating shield 2 and ceramic wafer 3, the degree of depth of groove is complementary with the thickness of heat-insulating shield 2 and ceramic wafer 3 respectively; Heat-insulating shield 2 can be the vitreous silica plate of isosceles trapezoid shape, and its two waist is parallel with two waists of substrate, its high 80-100mm, thick 10mm; Ceramic wafer 3 can be the grand high-performance ceramics plate of rectangular match, the length of this ceramic wafer * wide is 50 * 25mm, thick is 4mm, and this ceramic wafer monolithic ceramic plate or several ceramic bondings form ceramic wafer, substrate bottom under the roll axis, ceramic wafer bottom under the horizontal median axis of roll, apart from the horizontal median axis 10mm of roll, the least significant end of heat-insulating shield 2 is on the horizontal median axis of roll, apart from the horizontal median axis 40mm of roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021136564A CN1168558C (en) | 2002-04-25 | 2002-04-25 | Side seal mechanism for double-roller continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021136564A CN1168558C (en) | 2002-04-25 | 2002-04-25 | Side seal mechanism for double-roller continuous casting machine |
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| Publication Number | Publication Date |
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| CN1385266A true CN1385266A (en) | 2002-12-18 |
| CN1168558C CN1168558C (en) | 2004-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021136564A Expired - Fee Related CN1168558C (en) | 2002-04-25 | 2002-04-25 | Side seal mechanism for double-roller continuous casting machine |
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| Country | Link |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366364C (en) * | 2003-07-01 | 2008-02-06 | Sms迪马格股份公司 | Method for operating a strip casting machine for producing a metal strip |
| CN101068637B (en) * | 2004-09-17 | 2010-10-06 | 主要管理灵感有限公司 | Lateral seal of a casting gap formed between two casting rollers of a strip casting machine |
| CN102161082A (en) * | 2010-02-23 | 2011-08-24 | 上海柯瑞冶金炉料有限公司 | Side sealing plate for thin-belt continuous casting and manufacturing method |
| CN101454095B (en) * | 2006-03-24 | 2011-09-21 | 纽科尔公司 | Long wear side dams |
| CN104550795A (en) * | 2015-01-07 | 2015-04-29 | 江苏沙钢集团有限公司 | Thin strip continuous casting device |
| CN104722727A (en) * | 2013-12-24 | 2015-06-24 | Posco公司 | Upper sealing device of edge dam in twin roll strip casting machine |
| CN106541092A (en) * | 2016-11-25 | 2017-03-29 | 江西理工大学 | A kind of twin-roll thin strip continuous casting side seal board and its using method |
| CN109877284A (en) * | 2018-08-08 | 2019-06-14 | 江苏沙钢集团有限公司 | Composite side sealing plate and side sealing device for thin strip continuous casting |
| CN113441690A (en) * | 2020-03-26 | 2021-09-28 | 宝山钢铁股份有限公司 | Supporting device for side sealing plates between rollers of double-roller thin-strip continuous casting machine |
-
2002
- 2002-04-25 CN CNB021136564A patent/CN1168558C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366364C (en) * | 2003-07-01 | 2008-02-06 | Sms迪马格股份公司 | Method for operating a strip casting machine for producing a metal strip |
| CN101068637B (en) * | 2004-09-17 | 2010-10-06 | 主要管理灵感有限公司 | Lateral seal of a casting gap formed between two casting rollers of a strip casting machine |
| CN101454095B (en) * | 2006-03-24 | 2011-09-21 | 纽科尔公司 | Long wear side dams |
| CN102161082A (en) * | 2010-02-23 | 2011-08-24 | 上海柯瑞冶金炉料有限公司 | Side sealing plate for thin-belt continuous casting and manufacturing method |
| CN102161082B (en) * | 2010-02-23 | 2013-10-30 | 上海柯瑞冶金炉料有限公司 | Side sealing plate for thin-belt continuous casting and manufacturing method |
| CN104722727A (en) * | 2013-12-24 | 2015-06-24 | Posco公司 | Upper sealing device of edge dam in twin roll strip casting machine |
| CN104722727B (en) * | 2013-12-24 | 2017-04-12 | Posco公司 | Upper sealing device of edge dam in twin roll strip casting machine |
| CN104550795A (en) * | 2015-01-07 | 2015-04-29 | 江苏沙钢集团有限公司 | Thin strip continuous casting device |
| CN106541092A (en) * | 2016-11-25 | 2017-03-29 | 江西理工大学 | A kind of twin-roll thin strip continuous casting side seal board and its using method |
| CN109877284A (en) * | 2018-08-08 | 2019-06-14 | 江苏沙钢集团有限公司 | Composite side sealing plate and side sealing device for thin strip continuous casting |
| CN113441690A (en) * | 2020-03-26 | 2021-09-28 | 宝山钢铁股份有限公司 | Supporting device for side sealing plates between rollers of double-roller thin-strip continuous casting machine |
| CN113441690B (en) * | 2020-03-26 | 2022-09-20 | 宝山钢铁股份有限公司 | Supporting device for side sealing plates between rollers of double-roller thin-strip continuous casting machine |
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| CN1168558C (en) | 2004-09-29 |
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