CN104493111B - A kind of twin disjunctor half water-cooled steel ingot mould and production method thereof - Google Patents
A kind of twin disjunctor half water-cooled steel ingot mould and production method thereof Download PDFInfo
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- CN104493111B CN104493111B CN201410821378.8A CN201410821378A CN104493111B CN 104493111 B CN104493111 B CN 104493111B CN 201410821378 A CN201410821378 A CN 201410821378A CN 104493111 B CN104493111 B CN 104493111B
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- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
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Abstract
The invention discloses a kind of twin disjunctor half water-cooled steel ingot mould and production method thereof, use distinctive I-shaped structure to carry out twin disjunctor steel ingot to produce, utilize solidification principle and lateral light pressure technology by shrinkage porosite, shrinkage cavity and macrosegregation control the connecting portion at I shape steel ingot, after cooling, removed by flame cutting and scafing and there is macrosegregation, shrinkage porosite and the connecting portion in shrinkage cavity region, obtain two intact twin steel ingots, make the macrosegregation on special thick twin steel ingot, shrinkage porosite and shrinkage cavity just can be cleaned before cogging, thoroughly solve the macrosegregation in steel ingot, shrinkage porosite and Shrinkage Problem, it is achieved thereby that without macrosegregation, the production of the zero defect steel ingot of shrinkage porosite and shrinkage cavity, it is effectively improved the quality of special thick twin steel ingot.
Description
Technical field
The invention belongs to field of metallurgy, specifically, relate to a kind of twin disjunctor half water-cooled steel ingot mould and production method thereof.
Background technology
Produce static ingot at present and mostly abandoned traditional cast iron steel ingot mould, have employed water-cooled copper plate ingot mould.Use the method for riser head heat-preserving and covering insulation material or exothermic material to realize the directional solidification of molten steel while using water-cooled copper plate ingot mould, thus improve the quality of ingot casting, decrease segregation, shrinkage porosite and shrinkage cavity.
Although the most advanced steel ingot production technology used at present improves the quality of steel ingot, but the steel ingot that water-cooled copper plate ingot mould is produced still can not meet use requirement.When producing super-thick steel plate and some war products, along with substance and the thickness of steel ingot increase, steel ingot center segregation is serious, shrinkage porosite, shrinkage cavity yet suffers from, and it is uneven at thickness directional properties that this results in the steel produced, product heart portion of poor quality, a lot of product flaw detections are the most defective, the most significantly constrain the production of special heavy plate, the production of the most super special heavy plate.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of twin disjunctor half water-cooled steel ingot mould and production method thereof, break the normal procedure the moulding theory of ingot mould, the novel die utilizing twin disjunctor half water-cooled steel ingot mould carries out special thick twin steel ingot and produces, make macrosegregation, shrinkage porosite and shrinkage cavity on special thick twin steel ingot just can be cleaned before cogging, can thoroughly solve the macrosegregation in steel ingot, shrinkage porosite and Shrinkage Problem.
In order to solve the problems referred to above, the technical solution adopted in the present invention:
A kind of twin disjunctor half water-cooled steel ingot mould, including base, outside framework and sprue cup, described twin disjunctor half water-cooled steel ingot mould also includes two identical water-cooled copper plate ingot moulds, casting bonding pad and rectangle water-cooled copper plate platform, wherein, twin disjunctor half water-cooled steel ingot mould generally I-shaped structure, the two ends of I shape are two identical water-cooled copper plate ingot moulds, it is connected by casting bonding pad, casting bonding pad is cast iron quality, water-cooled copper plate ingot mould is arranged on rectangle water-cooled copper plate platform, rectangle water-cooled copper plate platform and water-cooled copper plate ingot mould are arranged in outside framework, outside framework and sprue cup are arranged on base, sprue cup communicates with casting bonding pad.
Further, the water pipe in the fixing water-cooled copper plate of described water-cooled copper plate ingot mould, movable water-cooling copper coin is arranged and is all used vertical feet direction to arrange, water (flow) direction is from bottom to top, realizes, for steel ingot entirety, the thermograde that directional solidification provides longitudinal.
Further, described water-cooled copper plate ingot mould includes fixing water-cooled copper plate, movable water-cooling copper coin, slideway, movable pulling plate and feed mechanism, feed mechanism is fixed on the inwall of outside framework, it is made up of hydraulic press and hydraulically extensible axle, hydraulically extensible axle is connected with movable water-cooling copper coin, movable pulling plate and slideway it is sequentially provided with from inside to outside on the fixing water-cooled copper plate inwall of movable water-cooling copper coin side, movable water-cooling copper coin is connected with fixing water-cooled copper plate by slideway, movable pulling plate is closely taken out conjunction and is connected with fixing water-cooled copper plate inwall, constitute conplane overall sheet material, movable water-cooling copper coin and fixing water-cooled copper plate surround enclosed construction.
Further, the hydraulically extensible axle of described feed mechanism and movable water-cooling copper coin joint are provided with pressure sensor device.
Further, described twin disjunctor half water-cooled steel ingot mould is provided with insulation cover, and insulation cover is provided with insulated feeder, and the position of insulated feeder is corresponding with casting bonding pad.
Use twin disjunctor half water-cooled steel ingot mould described in above claim to carry out the method produced, comprise the steps of:
Step 1: casting
Molten steel flows to bonding pad of casting by the way of sprue cup uses bottom pouring type, it is achieved the casting of molten steel in twin disjunctor half water-cooled steel ingot mould, and casting bonding pad uses cast iron quality, and bonding pad of casting in casting cycle uses the mode of natural cooling；
Step 2: cool down, solidify:
In cooling procedure, rectangle water-cooled copper plate platform inner high voltage water filling bottom water-cooled copper plate ingot mould, realize the fast cooling of Above The Ingot Bottom, simultaneously to the water pipe inner high voltage water filling of the water-cooled copper plate of water-cooled copper plate ingot mould, and water (flow) direction is from bottom to top, realize, for steel ingot entirety, the thermograde that directional solidification provides longitudinal, make punching block realize solidification from bottom to top；Casting bonding pad uses the mode of natural cooling to cool down；At two, region uses the different type of cooling, and chilling temperature is different, thus realizes " half water-cooled " refrigerating mode, makes the cooled and solidified of casting bonding pad be later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, is controlled at the center of final set in casting bonding pad；Shrinkage cavity and porosity and macrosegregation is made to stay the connecting portion of I shape steel ingot.
Step 3: cut, process:
The I shape steel ingot processed cooling down, having solidified is carried out flame cutting by welding gun, coupling part is cut away, becomes two complete steel ingots, i.e. complete the preparation of steel ingot.
As preferably, in the cooling procedure of step 2, twin disjunctor half water-cooled steel ingot mould being covered with insulation cover, insulation cover is provided with insulated feeder, utilizes riser head heat-preserving and insulation material soverlay technique, realizes directional solidification for steel ingot entirety and provides thermograde.
As preferably, during the solidification later stage of step 2, utilize the feed mechanism on the movable water-cooling copper coin of water-cooled copper plate ingot mould, phase makes movable water-cooling copper coin be perpendicular to steel ingot and does feed motion after solidification, steel ingot is carried out slighter compress, reduce the air gap between steel ingot and ingot mould, improve punching block quality further.
Beneficial effects of the present invention:
null1、The present invention breaks the normal procedure the moulding theory of ingot mould，Use distinctive I-shaped structure，Utilize solidification principle and laterally gently press technology，Realize the solidification from bottom to top of steel ingot，And use the refrigerating mode of " half water-cooled " to make the cooled and solidified of casting bonding pad be later than the cooled and solidified of punching block in water-cooled copper plate ingot mould，The center of final set is controlled in casting bonding pad，Make shrinkage cavity、Shrinkage porosite and macrosegregation stay the connecting portion of I shape steel ingot，After cooling，Removed by flame cutting and scafing and there is macrosegregation、Shrinkage porosite and the connecting portion in shrinkage cavity region，Obtain two intact twin steel ingots，Make the macrosegregation on special thick twin steel ingot、Shrinkage porosite and shrinkage cavity just can be cleaned before cogging，Thoroughly solve the macrosegregation in steel ingot，Shrinkage porosite and Shrinkage Problem,Achieve without macrosegregation，The production of the zero defect steel ingot of shrinkage porosite and shrinkage cavity.
2, the present invention can produce two special thick zero defect steel ingots simultaneously, and current ingot mould can only produce one, improves the production efficiency of special thick steel ingot.
3, present configuration is simple, practical, is effectively improved the quality of special thick twin steel ingot.
Accompanying drawing explanation
Fig. 1 is twin disjunctor half water-cooled steel ingot mould schematic top plan view；
Fig. 2 is that twin disjunctor half water-cooled steel ingot axle regards schematic diagram；
Fig. 3 is the schematic top plan view of water-cooled copper plate ingot mould；
Fig. 4 is the schematic top plan view of insulation cover；
Fig. 5 is the schematic diagram of feed mechanism；
Wherein, 1-base, 2-outside framework, 3-feed mechanism, 4-water-cooled copper plate ingot mould, 5-casting bonding pad, 6-rectangle water-cooled copper plate platform, 7-fix water-cooled copper plate, 8-movable water-cooling copper coin, 9-slideway, 10-movable pulling plate, 11-sprue cup, 12-insulation cover, 13-insulated feeder, 14-hydraulic press, 15-hydraulically extensible axle.
Detailed description of the invention
Embodiment 1
nullSuch as Fig. 1、Shown in Fig. 2，A kind of twin disjunctor half water-cooled steel ingot mould，Including base 1、Outside framework 2 and sprue cup 11，Described twin disjunctor half water-cooled steel ingot mould also includes two identical water-cooled copper plate ingot moulds 4、Casting bonding pad 5 and rectangle water-cooled copper plate platform 6，Wherein，Twin disjunctor half water-cooled steel ingot mould generally I-shaped structure，The two ends of I shape are two identical water-cooled copper plate ingot moulds 4，It is connected by casting bonding pad 5，Casting bonding pad 5 is cast iron quality，Water-cooled copper plate ingot mould 4 is arranged on rectangle water-cooled copper plate platform 6，Rectangle water-cooled copper plate platform 6 and water-cooled copper plate ingot mould 4 are arranged in outside framework 2，Outside framework 2 and sprue cup 11 are arranged on base，Sprue cup 11 communicates with casting bonding pad 5，Water pipe in the water-cooled copper plate of water-cooled copper plate ingot mould 4 all uses vertical feet 1 direction to arrange，Water (flow) direction is from bottom to top.
Production method:
Step 1: casting
Molten steel flows to bonding pad 5 of casting by the way of sprue cup 11 uses bottom pouring type, it is achieved the casting of molten steel in twin disjunctor half water-cooled steel ingot mould, and casting bonding pad 5 uses cast iron quality, and bonding pad of casting in casting cycle uses the mode of natural cooling；
Step 2: cool down, solidify:
In cooling procedure, rectangle water-cooled copper plate platform 6 inner high voltage water filling bottom water-cooled copper plate ingot mould 4, realize the fast cooling of Above The Ingot Bottom, simultaneously to the water pipe inner high voltage water filling of the water-cooled copper plate of water-cooled copper plate ingot mould 4, and water (flow) direction is from bottom to top, realize, for steel ingot entirety, the thermograde that directional solidification provides longitudinal, make punching block realize solidification from bottom to top；Casting bonding pad uses the mode of natural cooling to cool down；At two, region uses the different types of cooling, chilling temperature is different, thus realize " half water-cooled " refrigerating mode, the cooled and solidified making casting bonding pad is later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, control the center of final set, in casting bonding pad, to make shrinkage cavity and porosity and macrosegregation stay the connecting portion of I shape steel ingot；
Step 3: cut, process:
The I shape steel ingot processed cooling down, having solidified is carried out flame cutting by welding gun, the coupling part of the shrinkage porosite containing macrosegregation and shrinkage cavity is cut away, becomes two complete steel ingots, i.e. complete the preparation of steel ingot.
Embodiment 2
nullSuch as Fig. 1、2、3、Shown in 5，A kind of twin disjunctor half water-cooled steel ingot mould，Including base 1、Outside framework 2 and sprue cup 11，Described twin disjunctor half water-cooled steel ingot mould also includes two identical water-cooled copper plate ingot moulds 4、Casting bonding pad 5 and rectangle water-cooled copper plate platform 6，Wherein，Twin disjunctor half water-cooled steel ingot mould generally I-shaped structure，The two ends of I shape are two identical water-cooled copper plate ingot moulds 4，It is connected by casting bonding pad 5，Casting bonding pad 5 is cast iron quality，Water-cooled copper plate ingot mould 4 is arranged on rectangle water-cooled copper plate platform 6，Rectangle water-cooled copper plate platform 6 and water-cooled copper plate ingot mould 4 are arranged in outside framework 2，Outside framework 2 and sprue cup 11 are arranged on base 1，Sprue cup 11 communicates with casting bonding pad 5，Water-cooled copper plate ingot mould 4 includes fixing water-cooled copper plate 7、Movable water-cooling copper coin 8、Slideway 9、Movable pulling plate 10 and feed mechanism 3，Feed mechanism 3 is fixed on the inwall of outside framework 2，It is made up of hydraulic press 14 and hydraulically extensible axle 15，Hydraulically extensible axle 15 is connected with movable water-cooling copper coin 8，Movable pulling plate 10 and slideway 9 it is sequentially provided with from inside to outside on fixing water-cooled copper plate 7 inwall of movable water-cooling copper coin 8 side，Movable water-cooling copper coin 8 is connected with fixing water-cooled copper plate 7 by slideway 9，Movable pulling plate 10 is closely taken out conjunction and is connected with fixing water-cooled copper plate 7 inwall，Constitute conplane overall sheet material，Movable water-cooling copper coin 8 and fixing water-cooled copper plate 7 surround closed structure，Water pipe in the water-cooled copper plate of water-cooled copper plate ingot mould 4 all uses vertical feet direction to arrange，Water (flow) direction is from bottom to top.
Hydraulically extensible axle 15 and movable water-cooling copper coin 8 joint of feed mechanism 3 also can be provided with pressure sensor device, are adjusted the pressure of slighter compress process.
Production method:
Step 1: casting
Molten steel flows to bonding pad 5 of casting by the way of sprue cup 11 uses bottom pouring type, it is achieved the casting of molten steel in twin disjunctor half water-cooled steel ingot mould, and casting bonding pad 5 uses cast iron quality, and bonding pad 5 of casting in casting cycle uses the mode of natural cooling；
Step 2: cool down, solidify:
In cooling procedure, rectangle water-cooled copper plate platform 6 inner high voltage water filling bottom water-cooled copper plate ingot mould 4, realize the fast cooling of Above The Ingot Bottom, simultaneously to the water pipe inner high voltage water filling of the water-cooled copper plate of water-cooled copper plate ingot mould 4, and water (flow) direction is from bottom to top, realize, for steel ingot entirety, the thermograde that directional solidification provides longitudinal, make punching block realize solidification from bottom to top；Casting bonding pad uses the mode of natural cooling to cool down；At two, region uses the different types of cooling, chilling temperature is different, thus realize " half water-cooled " refrigerating mode, the cooled and solidified making casting bonding pad is later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, control the center of final set, in casting bonding pad, to make shrinkage cavity and porosity and macrosegregation stay the connecting portion of I shape steel ingot；
After solidification during the phase, after green shell is formed, steel ingot is due to cooling volume-diminished, now, movable pulling plate 10 on fixing water-cooled copper plate 7 inwall of extraction, open feed mechanism 3, make hydraulic press 14 control hydraulically extensible axle 15 to move out, drive movable water-cooling copper coin 8 along slideway 9 inward, utilize feed mechanism 3, make movable water-cooling copper coin 8 be perpendicular to steel ingot and do feed motion, further, it is also with the hydraulically extensible axle 15 of feed mechanism 3 and the pressure sensor device of movable water-cooling copper coin 8 joint, the pressure of slighter compress process is adjusted, steel ingot is carried out slighter compress, reduce the air gap between steel ingot and ingot mould, the dendrite that steel ingot solidified inside is formed can be crushed simultaneously, increase the ratio of equiax crystal, improve ingot quality；
Step 3: cut, process:
By welding gun, the I shape steel ingot processed cooling down, having solidified is carried out flame cutting, and the coupling part that will contain macrosegregation, shrinkage porosite and shrinkage cavity cuts away, and becomes two complete steel ingots, i.e. completes the preparation of steel ingot.
Embodiment 3
nullSuch as Fig. 1、2、3、Shown in 4，A kind of twin disjunctor half water-cooled steel ingot mould，Including base 1、Outside framework 2 and sprue cup 11，Described twin disjunctor half water-cooled steel ingot mould also includes two identical water-cooled copper plate ingot moulds 4、Casting bonding pad 5 and rectangle water-cooled copper plate platform 6，Wherein，Twin disjunctor half water-cooled steel ingot mould generally I-shaped structure，The two ends of I shape are two identical water-cooled copper plate ingot moulds 4，It is connected by casting bonding pad 5，Casting bonding pad 5 is cast iron quality，Water-cooled copper plate ingot mould 4 is arranged on rectangle water-cooled copper plate platform 6，Rectangle water-cooled copper plate platform 6 and water-cooled copper plate ingot mould 4 are arranged in outside framework 2，Outside framework 2 and sprue cup 11 are arranged on base 1，Sprue cup 11 communicates with casting bonding pad 5，Described twin disjunctor half water-cooled steel ingot mould is provided with insulation cover 12，Insulation cover 12 is provided with insulated feeder 13，The position of insulated feeder 13 and casting bonding pad 5 are corresponding.
Production method:
Step 1: casting
Molten steel flows to bonding pad 5 of casting by the way of sprue cup 11 uses bottom pouring type, it is achieved the casting of molten steel in twin disjunctor half water-cooled steel ingot mould, and casting bonding pad 5 uses cast iron quality, and bonding pad of casting in casting cycle uses the mode of natural cooling；
Step 2: cool down, solidify:
In cooling procedure, rectangle water-cooled copper plate platform 6 inner high voltage water filling bottom water-cooled copper plate ingot mould 4, realize the fast cooling of Above The Ingot Bottom, simultaneously to the water pipe inner high voltage water filling of the water-cooled copper plate of water-cooled copper plate ingot mould 4, and water (flow) direction is from bottom to top, and twin disjunctor half water-cooled steel ingot mould is covered with insulation cover 12, insulation cover 12 is provided with insulated feeder 13, utilize riser head heat-preserving and insulation material soverlay technique, realize directional solidification for steel ingot entirety and thermograde is provided, the thermograde that directional solidification provides longitudinal is preferably realized for steel ingot entirety, punching block is made to realize solidification from bottom to top；
Water-cooled copper plate ingot mould 4 use water-cooling pattern carry out from bottom to top cooling, casting bonding pad 5 uses the mode of natural cooling to cool down, at two, region uses the different types of cooling, chilling temperature is different, thus realize " half water-cooled " refrigerating mode, the cooled and solidified making casting bonding pad 5 is later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, the center of final set controls the casting bonding pad 5 on upper strata, makes shrinkage cavity and porosity and macrosegregation stay the connecting portion of I shape steel ingot；
Step 3: cut, process:
By welding gun, the I shape steel ingot processed cooling down, having solidified is carried out flame cutting, and the coupling part that will contain macrosegregation, shrinkage porosite and shrinkage cavity cuts away, and becomes two complete steel ingots, i.e. completes the preparation of steel ingot.
The principle of the present invention and design feature:
When utilizing at die casting technology production steel ingot, owing to the cooling of molten steel starts the most from outside to inside, center is in high temperature final set, due to molten steel solidification volume-diminished, the center of final set does not has molten steel to carry out feeding, will result in center segregation, shrinkage cavity and shrinkage porosite, segregation, shrinkage cavity and shrinkage porosite stay the serviceability that will destroy steel inside steel ingot.
(1) directional solidification technique is used:
It is additionally arranged at the bottom of rectangle water-cooled copper plate platform at ingot mould, water (flow) direction in the water-cooled copper plate of surrounding is from bottom to top, and use riser head heat-preserving and insulation material soverlay technique, triplicity realizes directional solidification for steel ingot entirety and provides thermograde, make ingot mould directional solidification from bottom to top, the upper strata that the final set region of steel ingot is arranged on punching block of orientation.
(2) distinctive i shaped steel ingot mould structure is used:
Use distinctive i shaped steel ingot mould structure, the ingot mould at I shape two ends is used the different types of cooling with the region connecting punching block, ingot mould use water-cooling pattern carry out orientation cooling from bottom to top, steel ingot join domain uses traditional cast iron, use the mode of natural cooling, chilling temperature is different, thus realize " half water-cooled " refrigerating mode, the bonding pad cooled and solidified making center is later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, according to solidification principle, the center of final set is controlled the casting bonding pad on upper strata, make center macrosegregation, shrinkage cavity and shrinkage porosite stay the junction of steel ingot, after cooling, remove containing center segregation by flame cutting and scafing, shrinkage cavity and the connecting portion of shrinkage porosite.
(2) the solidification later stage is perpendicular to the soft reduction technique of feed motion of steel plate:
After green shell is formed, steel ingot is due to cooling volume-diminished, between steel ingot and ingot mould, gap is strengthened, the solidification later stage carries out lateral slighter compress, reduce the air gap between steel ingot and ingot mould, make solidification carry out towards center, utilize soft reduction technique can also crush the dendrite that steel ingot solidified inside is formed simultaneously, increase the ratio of equiax crystal, improve ingot quality further.
The water-cooled steel ingot mould shaping method of the present invention has broken the moulding theory of conventional steel ingot mould, is two steel ingots by the I shape steel ingot that will manufacture by flame cutting, is then cut away coupling part, become two complete steel ingots.The present invention is by directional solidification technique from bottom to top, utilize solidification principle and lateral soft reduction technique by shrinkage porosite, shrinkage cavity and macrosegregation control the connecting portion at I shape steel ingot, after cooling, connecting portion is removed by flame cutting and scafing, namely remove macrosegregation, shrinkage porosite and shrinkage cavity region, it is achieved thereby that the production of the zero defect plate ingot without macrosegregation, shrinkage porosite and shrinkage cavity.
Product quality analysis:
Steel ingot that technical scheme described in the present invention is produced and quality versus's table of common water-cooled steel ingot mould:
| Segregation rate (%) | Shrinkage porosite rate (%) | Contraction cavity ratio (%) | Lumber recovery (%) | |
| Twin steel ingot | 1.3 | 2.1 | 0.9 | 90.8 |
| Common steel ingot | 5.3 | 8.2 | 7.8 | 78.3 |
The feature of twin water-cooled steel ingot mould is can produce inside two special thick steel ingots, and the steel ingot produced simultaneously does not has shrinkage cavity and shrinkage porosite, it is achieved that the absolute shrinkage cavity in steel ingot heart portion and shrinkage porosite, makes the lumber recovery of steel ingot reach more than 90%.
Finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from claims of the present invention limited range.
Claims (7)
1. twin disjunctor half water-cooled steel ingot mould, including base, outside framework and sprue cup, it is characterized in that: described twin disjunctor half water-cooled steel ingot mould includes two identical water-cooled copper plate ingot moulds, casting bonding pad and rectangle water-cooled copper plate platform, wherein, twin disjunctor half water-cooled steel ingot mould generally I-shaped structure, the two ends of I shape are two identical water-cooled copper plate ingot moulds, it is connected by casting bonding pad, casting bonding pad is cast iron quality, water-cooled copper plate ingot mould is arranged on rectangle water-cooled copper plate platform, rectangle water-cooled copper plate platform and water-cooled copper plate ingot mould are arranged in outside framework, outside framework and sprue cup are arranged on base, sprue cup communicates with casting bonding pad.
One the most according to claim 1 twin disjunctor half water-cooled steel ingot mould, it is characterized in that: the water pipe in the water-cooled copper plate of described water-cooled copper plate ingot mould is arranged and all used vertical feet direction to arrange, water (flow) direction is from bottom to top, realizes, for steel ingot entirety, the thermograde that directional solidification provides longitudinal.
One the most according to claim 1 twin disjunctor half water-cooled steel ingot mould, it is characterized in that: described water-cooled copper plate ingot mould includes fixing water-cooled copper plate, movable water-cooling copper coin, slideway, movable pulling plate and feed mechanism, feed mechanism is fixed on the inwall of outside framework, it is made up of hydraulic press and hydraulically extensible axle, hydraulically extensible axle is connected with movable water-cooling copper coin, movable pulling plate and slideway it is sequentially provided with from inside to outside on the fixing water-cooled copper plate inwall of movable water-cooling copper coin side, movable water-cooling copper coin is connected with fixing water-cooled copper plate by slideway, movable pulling plate is closely taken out conjunction and is connected with fixing water-cooled copper plate inwall, constitute the overall sheet material on same plane, movable water-cooling copper coin and fixing water-cooled copper plate surround enclosed construction.
One the most according to claim 3 twin disjunctor half water-cooled steel ingot mould, it is characterised in that: the hydraulically extensible axle of described feed mechanism and movable water-cooling copper coin joint are provided with pressure sensor device.
One the most according to claim 1 twin disjunctor half water-cooled steel ingot mould, it is characterised in that: described twin disjunctor half water-cooled steel ingot mould is provided with insulation cover, and insulation cover is provided with insulated feeder, and the position of insulated feeder is corresponding with casting bonding pad.
6. use the method that twin disjunctor half water-cooled steel ingot mould described in one claim of any of the above carries out producing, it is characterised in that comprise the steps of:
Step 1: casting
Molten steel flows to bonding pad of casting by the way of sprue cup uses bottom pouring type, it is achieved the casting of molten steel in twin disjunctor half water-cooled steel ingot mould, and casting bonding pad uses cast iron quality, and bonding pad of casting in casting cycle uses the mode of natural cooling；
Step 2: cool down, solidify:
In cooling procedure, rectangle water-cooled copper plate platform inner high voltage water filling bottom water-cooled copper plate ingot mould, realize the fast cooling of Above The Ingot Bottom, simultaneously to the water pipe inner high voltage water filling of the water-cooled copper plate of water-cooled copper plate ingot mould, and water (flow) direction is from bottom to top, realize, for steel ingot entirety, the thermograde that directional solidification provides longitudinal, make punching block realize solidification from bottom to top；Casting bonding pad uses the mode of natural cooling to cool down；At two, region uses the different type of cooling, and chilling temperature is different, thus realizes " half water-cooled " refrigerating mode, makes the cooled and solidified of casting bonding pad be later than the cooled and solidified of punching block in water-cooled copper plate ingot mould, is controlled at the center of final set in casting bonding pad；Shrinkage cavity and porosity and macrosegregation is made to stay the connecting portion of I shape steel ingot；
Step 3: cut, process:
The I shape steel ingot processed cooling down, having solidified is carried out flame cutting by welding gun, coupling part is cut away, becomes two complete steel ingots, i.e. complete the preparation of steel ingot.
The method that employing the most according to claim 6 twin disjunctor half water-cooled steel ingot mould carries out producing, it is characterized in that: in the cooling procedure of step 2, twin disjunctor half water-cooled steel ingot mould is covered with insulation cover, insulation cover is provided with insulated feeder, utilize riser head heat-preserving and insulation material soverlay technique, realize directional solidification for steel ingot entirety and thermograde is provided.
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| CN201267869Y (en) * | 2008-09-19 | 2009-07-08 | 宝山钢铁股份有限公司 | Unidirectional solidification device of super-thick plate blank |
| CN101966562B (en) * | 2010-09-30 | 2013-07-03 | 西峡龙成特种材料有限公司 | Non-electroslag remelting type clean metal ingot mould |
| CN201922029U (en) * | 2010-12-21 | 2011-08-10 | 南阳汉冶特钢有限公司 | Metal directional solidification clean ingot mold |
| CN203484621U (en) * | 2013-09-24 | 2014-03-19 | 南京宁铁有色合金科技开发有限公司 | Aluminum ingot mold used for tensile test |
-
2014
- 2014-12-26 CN CN201410821378.8A patent/CN104493111B/en not_active Expired - Fee Related
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