CN1077817C - Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel - Google Patents
Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel Download PDFInfo
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- CN1077817C CN1077817C CN98113713A CN98113713A CN1077817C CN 1077817 C CN1077817 C CN 1077817C CN 98113713 A CN98113713 A CN 98113713A CN 98113713 A CN98113713 A CN 98113713A CN 1077817 C CN1077817 C CN 1077817C
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- frame
- insulation layer
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- waste molten
- molten steel
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention discloses a casting technology which uses waste molten steel to produce middle package covers in a steel plant. The technology of the present invention comprises a tyre manufacturing process, a tyre baking process and a casting process. Steel plates are adopted by the tyre manufacturing process to manufacture a side frame according to the shape of a middle package cover, firebricks are arranged and coated along the inner side of the side frame to form a thermal insulation layer, and finally, pug is smeared on the thermal insulation layer to be leveled; a U-shaped ring hole on the middle package cover is made into a U-shaped tyre with the thermal insulation layer. The present invention has the characteristics of simple technology, convenient tyre baking process, low cost, etc., the waste molten steel is directly converted into a finished product of the middle package cover, and the steel making cost of factories is directly reduced.
Description
The present invention relates to a kind of casting technique, is to utilize waste molten steel to produce plate hole class spare part technologies such as middle clad in the steel mill steelshop.
With middle clad is example, at steel mill, the production of middle clad is to carry out " pit casting " in the machine casting workshop under it, promptly in foundry, press the grooving on the spot of middle clad profile, build in fact, smear refractory material, its shortcoming is the moulding complexity, the integer difficulty, drying time is long, cost is high, very flexible, can't directly utilize the steel-making waste molten steel to cast.
The object of the invention provides a kind of steel-making scene that adapts to and utilizes waste molten steel to cast and plate hole class spare part technologies such as middle clad with low cost on the spot.
The present invention seeks to realize like this; Utilizing waste molten steel to produce the tundish cover process comprises; Make base, dry by the fire tire, casting.Make base main steel plate (mainly being waste and old steel plate) or the cast steel of adopting by middle clad shape fabricating frame, lay out refractory brick along scuncheon and between baffle plate and brick, clog the tamping sand material mixture with baffle plate more afterwards, form heat insulation layer.Also can adopt the levelling of claying material.To the U-loop hole on the middle clad, make the U type tire of band heat insulation layer.Casting mainly be utilize steel-making on-the-spot melt down steel or waste molten steel transfers casting.It is on-the-spot that the casting pattern of making is placed in steel-making in advance, once there is waste molten steel to produce, promptly transfers casting, and avoided leaking useless.
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is middle clad structure diagram;
Fig. 2 is middle clad casting die structure sketch.
Referring to Fig. 1, middle clad is a slab construction, and the hanger 1 for lifting is arranged all around, and the centre has to be had on baking hole 2, one side for rod hole 3, Ansai.
Referring to Fig. 2, the casting technique of middle clad is;
(1) makes base; Behind the shop fixtures, adopt waste and old steel plate to be welded into frame 4,, spread 6 levellings of mud face along its inboard shop one deck refractory brick 5.Refractory brick 5 also can in groove, form permanent heat insulation layer with brick, reusable (figure slightly) by at frame 4 inboard welding brick-inlaid grooves.Filling tamping sand material mixture is made the production efficiency height between also available baffle plate of the dirty sand of refractory brick 5 inboards and the brick.The U type tire in casting stopper hole 3 is made up of inside and outside steel loop frame 7,8, and the centre is full of refractory clay and makes heat insulation layer.Gap annular distance 3, inner ring frame 7 cards are set on the frame 4, add drift 9 stretchings.Tight, its limit end is tight by 17 of bolt clamps by bolt clamp 10 for outer shroud frame 8.To annular distance 2 in the dish, inner ring frame 11 be the two halves symmetrical structure, joint by bolt 12 on, add drift 13 stretchings therebetween, outer shroud frame 14 at joint by bolt 15 tightly, the centre is propping iron also.Adopt this U type tire reusable.The also available refractory brick of the ring-like tire of U directly smeared by type pendulum form, dose dry sand (figure slightly) in the middle of it.Adopt round steel to cut weldering to hanger 1 and form, directly pendulum becomes one after the casting at frame 4 each position.
Carcass frame (frame) also can be divided into several sections, goes up refractory brick and the permanent fetalism of the fixing formation of carcass for every section.Time spent is combined into the regulation shape with each section, with the jig chucking, forms whole carcass.Its advantage is without the claying material, and the fast workpiece of making base retracts conveniently.
(2) baking tire; Smear because of pug is thick in a large number, only simply toast and treat that dried slightly adult is removable outer shroud frame 8,14 with on-the-spot coal gas
(3) casting; The tire groove that makes is placed near the steel-making scene, meet waste molten steel and produce, can transfer casting.If direct pouring that the steel temperature is low, the stream that looses can be uncapped greatly also can be added a cover on fetal membrane by cast gate and be cast.Can be by middle clad of a cast gate casting, also can to add the stream basin on it and temperature raising oxygen rifle is cast simultaneously to the loose tool that keeps flat more than two by a main cast gate, also can cast simultaneously to the loose tool that stacks more than two or casting at interval (being that the same loose tool of multilayer ladder type accumulation casting adds dowel this moment in the casting chamber) by a main cast gate so that repeatedly casting fuses.Above-mentioned casting technique also can be used for using in the foundry of machinery plant, also is applicable to plate hole class spare part productions such as fritter steel ingot, geared wheel.Whole loose tool places on the pallet of being with heat insulation layer is convenient to handling.
Advantage of the present invention and good effect are: 1, moulding is simple. Adopting frame to add to lay bricks to finish makes Type, low to the requirement of skilled worker's technical merit, the useless Modeling Material of consumption is few, the production efficiency height. 2, the baking tire is convenient. Because loose tool surface claying layer is thin, utilize on-the-spot coal gas to dry. 3, cost is low. On-the-spot useless to make steel Molten steel is directly cast, specially smelting molten steel casting, also because the cost of making base is low, time saving and energy saving from And reduced the production cost of pouring basket lid, be reduced to approximately former 1/6 cost. 4, steel mill's waste molten steel is straight Switching through product has been avoided putting, having improved because the waste molten steel generation causes steel scrap size block, sheet to huddle The environment of plant reduces consuming, and has reduced steel-making cost, is beneficial to enterprise and strengthens management.
Claims (6)
1, a kind of waste molten steel that utilizes is produced plate hole class spare part technologies such as middle clad, comprise and make base, dry by the fire tire, casting, it is characterized in that described making base is to adopt steel plate or cast steel to make frame by middle clad profile, lay out refractory brick along scuncheon and between baffle plate and brick, clog tamping sand material mixture formation heat insulation layer afterwards again, also can on the brick face, directly use the silt particle levelling, to the U-loop hole on the middle clad, make the ring-like tire of U of band heat insulation layer, to the annular distance on the middle clad, make the ring-like tire of band heat insulation layer.
2, produce plate hole class spare part technologies such as middle clad according to the described waste molten steel that utilizes of claim 1, its characteristics are that the heat insulation layer in the frame is permanent heat insulation layer, and the brick-inlaid groove of promptly burn-oning in frame is with fire-resistant brick in groove.
3, produce plate hole class spare part technologies such as middle clad according to claim 1 or the 2 described waste molten steels that utilize, its characteristics are that described U type tire is made up of inside and outside steel loop frame, the centre is full of fire-resistant mixed sand and makes heat insulation layer, gap annular distance inner ring frame card is set on the frame, add the wedge stretching, outer shroud edge end is fixing by bolt and frame chucking; To annular distance in the dish, inner ring frame is the two halves symmetrical structure, joint by bolt on, propping iron in the middle of it, the outer shroud frame joint by bolt on propping iron in the middle of it.
4, according to claim 1 or 2 described utilize waste molten steels produce in the middle of plate hole class spare part technology such as clad, its characteristics are that described U type tire is smeared by the refractory brick pendulum and form middle filling dry sand.
5, produce plate hole class spare part technologies such as middle clad according to the described waste molten steel that utilizes of claim 3, its characteristics are that described casting can cast to the loose tool that keeps flat more than two simultaneously by a main cast gate, also can cast simultaneously to the loose tool that stacks more than two or casting at interval by a main cast gate.
6, produce plate hole class spare part technologies such as middle clad according to the described waste molten steel that utilizes of claim 5, its characteristics are that the carcass frame is divided into several sections, go up refractory brick and the permanent fetalism of the fixing formation of carcass for every section, and the time spent is combined into the regulation shape with each section, with the jig chucking, form whole carcass.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN98113713A CN1077817C (en) | 1998-01-09 | 1998-01-09 | Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN98113713A CN1077817C (en) | 1998-01-09 | 1998-01-09 | Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel |
Publications (2)
Publication Number | Publication Date |
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CN1200966A CN1200966A (en) | 1998-12-09 |
CN1077817C true CN1077817C (en) | 2002-01-16 |
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CN98113713A Expired - Fee Related CN1077817C (en) | 1998-01-09 | 1998-01-09 | Technology for producing perforated plate spare components such as pouring basket lid etc. using waste molten steel |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111822686B (en) * | 2020-07-25 | 2022-02-01 | 武钢集团昆明钢铁股份有限公司 | Die casting method for continuous casting tundish cover and manufacturing die thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1140112A (en) * | 1996-05-10 | 1997-01-15 | 河北省沧州机械厂 | Centrifugal casting and moulding technique for screw of screw oil extruder |
CN2253679Y (en) * | 1995-10-20 | 1997-05-07 | 成都汽车配件总厂郫县特种铸造研究所 | Composite die for producing casting pieces of car engine cyinder |
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1998
- 1998-01-09 CN CN98113713A patent/CN1077817C/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2253679Y (en) * | 1995-10-20 | 1997-05-07 | 成都汽车配件总厂郫县特种铸造研究所 | Composite die for producing casting pieces of car engine cyinder |
CN1140112A (en) * | 1996-05-10 | 1997-01-15 | 河北省沧州机械厂 | Centrifugal casting and moulding technique for screw of screw oil extruder |
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CN1200966A (en) | 1998-12-09 |
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