CN102554144B - Tiled butting type ingot mold and casting method thereof - Google Patents
Tiled butting type ingot mold and casting method thereof Download PDFInfo
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Abstract
The invention provides a tiled butting type ingot mold and a casting method thereof. The tiled butting type ingot mold mainly comprises a mold body and a set of hoisting rings fixedly arranged on the mold body, wherein an outward-inclined structure is arranged on the inner wall of a casting concave cavity of the mold body, melted iron overflow grooves are arranged on the top end face of the cavity wall of the casting concave cavity, a set of ingot molds can be formed into a butting type arrangement structure on a supporting guide rail or an I-shaped steel on a smooth working plane according to a tiled installation mode, namely side end faces abut against each other side by side and the melted iron overflow grooves are abutted joint and communicated with each other, and casting operation is carried out according to the steps of smoothing the working plane, installing the ingot molds, pouring molten iron, dumping iron, water quenching, hardening, crushing processing and the like, and the melted iron stably overflows along the horizontally-butted overflow grooves in sequence for the pouring operation, therefore, the washout and erosion effects of the melted iron on the inner wall of the casting concave cavity can be alleviated and the operation difficulty of ingot mold manufacture and arrangement installation can be reduced. The tiled butting type ingot mold and the casting method provided by the invention have the outstanding advantages that the design is novel, the structure is reasonable, the manufacturing is easy to realize, the installation and use are convenient, the service life is long and the safety performance is high.
Description
Technical field
The present invention relates to produce the casting die of ferroalloy, relate to simultaneously its casting method, specifically a kind of tiling dock ingot mould and casting method thereof, it is the further Improvement and perfection that waters ingot mould and casting method thereof to existing.
Background technology
China's metallurgy industry is produced in the development process of ferroalloy smelting, once gone through " ground pit type casting " on casting process, " melt pit-cast iron link stopper casting " and multiple production operation modes such as " sand mo(u)ld casting ", the workman will carry out the repetitive operation of " building modeling " repeatedly in hot environment, its working environment is comparatively abominable, the alloy block that is cast into is thick large, follow-up broken difficulty of processing is large, also can produce a large amount of alloy fine powder face waste products in artificial and Mechanical Crushing operation process, this will have a strong impact on production efficiency and the economic benefit of ferroalloy enterprise, recently, these several casting modes are substituted by comparatively advanced " cast iron mold casting ".Although this " cast iron mold casting " mode can be avoided repeatedly the duplication of labour of " building modeling ", has alleviated to a certain extent workman's labour intensity.But, we find that also also there are some structural defects in actual use in this cast iron mold: be mainly, on its mold cavity surrounding mould wall, iron runner is not set, cast iron mold can only singlely be put in casting on-the-spot independently, and needing overhead traveling crane to play, ladle is constantly mobile that the cast iron mold of independently putting is one by one carried out pouring practice.In fact, the ferroalloy lumpiness that is cast into is still larger, still can produce approximately 15% alloy face waste product in follow-up broken processing operation process, overhead traveling crane plays, and also there is great potential safety hazard in continuous the movement while carrying out pouring practice to ladle at casting operation face top.In order to address this problem, the applicant had once proposed a kind of overhead traveling crane ladle of playing that can make and a fixed position, one group of ingot mould had been carried out the patent of invention technology (201120204917.5) of pouring practice.It is to stretch in the iron runner of side end face outside arranging on the mould wall of ingot mould, one group of ingot mould is pressed the staged position of sound production, molten iron can be flowed in the mold cavity of one group of ingot mould from top to bottom successively carry out pouring practice, the iron alloy block that is cast into is easy to the demoulding and crushing operation, and alloy fine powder face percent defective can be reduced to 5% ~ 8%.But, because iron runner is to stretch out in mould wall outside end face also successively by forming the stagger structure on the mould wall that is put in lower single order ingot mould, go up most the rank ingot mould and will be in higher position, the very inconvenience of operation of ingot mould is installed, also have simultaneously larger potential safety hazard, the molten iron that flows from top to bottom during cast can form and serious wash away corrosion function and damage ingot mould lower rank ingot mould.
Summary of the invention
Purpose of the present invention is intended to overcome the weak point that above-mentioned prior art exists, and a kind of more economical and practical tiling dock ingot mould and casting method thereof are proposed, it is one group of ingot mould to be arranged to lay by the tiling docking mode of " die body side end face side by side near " to carry out pouring practice on ground grading, can greatly slow down the wash away corrosion function of high temperature liquid iron to the mold cavity inwall, to extending ingot mould service life, alleviate labor strength, positive effect has ensured safety in production.
The objective of the invention is to realize according to following technical scheme:
A kind of tiling dock ingot mould that the present invention proposes, it comprises the die body that is provided with the casting cavity and the one group of hoisting ring that is fixedly installed in die body, it is characterized in that: be provided with one group of molten iron overflow launder on the chamber wall of casting cavity, the internal face of casting cavity is arranged to the outer incline structure, and controlling flare oblique angle α is 92o ~ 160o.It is the molten iron overflow launder to be arranged at the casting cavity chamber wall top end face of die body, can make one group of ingot mould form tiling dock arrangement by the mounting means of " the die body outboard end is faced and is close to together, the docking of molten iron overflow launder communicates ".it is performed such ferroalloy pouring practice: die casting machine is placed on ground, be close to side by side successively tiling in the transition flow metal trough exit of die casting machine the arrangement of one group of ingot mould formation " casting of molten iron overflow launder docking advection " is installed, can be according to the quantity of the required installation ingot mould of the amount of tapping a blast furnace calculative determination of electric furnace, and consideration casting place concrete condition, one group of ingot mould can be flowed to along a molten iron, or along two molten iron, flow to, or along three molten iron, flow to the dock layout installation of tiling, check after molten iron overflow launder foreign stops up and can carry out molten iron pouring practice, the ladle that will fill molten hot metal with overhead traveling crane winches to the die casting machine top and slowly pours in die casting machine, molten iron flowed into by the transition flow metal trough in the casting cavity of first ingot mould and the molten iron overflow launder that communicates through docking successively overflow until water completely all casting cavitys of ingot moulds, namely complete pouring practice.treat that molten iron condensing surface temperature is down to 700 ℃ ~ 1000 ℃, the molten iron of casting in cavity is gradually during setting and hardening, hook the hoisting ring of die body one side with the hook of overhead traveling crane, the iron alloy block that the die body that can overturn easily will be cast in cavity topples over out, also can adopt in the casting cavity and lay the iron mode of getting of carrying iron hoop, until molten iron setting and hardening and encasing while carrying iron hoop gradually, the hook of available overhead traveling crane hooks proposes upwards lifting of iron hoop, also whole iron alloy block can be extracted in the casting cavity of ingot mould, the internal face of casting cavity is arranged to the outer incline structure that flare oblique angle α is 92o ~ 160o, be convenient to especially get the operation of the iron demoulding.
The tiling dock ingot mould that the present invention proposes also has following technical characterictic:
One group of molten iron overflow launder is set on the wall of casting cavity chamber quantity is 1 ~ 4, according to the arrangement that waters casting production process, one group of ingot mould and the concrete condition of operation field, can be chosen on the wall of casting cavity offside chamber a molten iron overflow launder respectively is set, also can on three chamber walls of casting cavity, a molten iron overflow launder be set respectively, can adapt to respectively along a molten iron and flow to, or along two molten iron, flow to, or flow to the needs of one group of ingot mould of tiling abutting joint along three molten iron.
Pawl structures is arranged in the inner of hoisting ring, and the installation that can effectively strengthen hoisting ring is firm
Performance, said one group of hoisting ring is installed on the outside endface position of die body, also one group of hoisting ring can be installed on the top end face position of die body.
The casting cavity length of die body be 800 mm ~ 2500mm, width be 600 mm ~ 2000mm,
The degree of depth is 50 mm ~ 350mm.The tiling dock ingot mould of making by above-mentioned specification can make molten iron have good mobile performance, also is convenient to especially get the operation of the iron demoulding.
Produce the casting method of ferroalloy with above-mentioned tiling dock ingot mould, it is characterized in that: it carries out as follows:
1. the smooth scope of operation arranges ground in the on-the-spot compacting of casting and forms smooth pouring practice face, lays die casting machine on smooth pouring practice ground.
2. ingot mould is installed according to once the cast quantity of one group of ingot mould of the required use of the amount of tapping a blast furnace calculative determination of electric furnace, with one group of ingot mould on smooth pouring practice ground by " the die body side end face side by side near, molten iron overflow launder docking communicates " the tiling mounting means form tiling dock arrangement, the molten iron overflow launder of first ingot mould ante-chamber wall is butted up against the port of export of die casting machine, said one group of ingot mould is to flow to along a molten iron, or along two molten iron, flow to, or along three molten iron, flow to the dock layout installation of tiling, the molten iron overflow launder foreign obstruction that checks docking makes it to keep the smooth and easy overflow situation that communicates, be beneficial to molten iron and pour into a mould one by one the casting cavity of one group of ingot mould through the steady overflow of molten iron overflow launder.
3. pouring molten iron will be loaded with the ladle of smelting molten hot metal with overhead traveling crane and winch to the top of die casting machine and slowly pour in die casting machine, and the molten iron overflow launder that molten iron flows in the casting cavity of first ingot mould from die casting machine, communicate by docking more successively carries out horizontal overflow and one by one waters the casting cavity of filling with one group of ingot mould.
4. toppling over taps a blast furnace waits for when the interior molten iron nature cooling surface temperature of casting cavity is down to 700 ℃ ~ 1000 ℃, the hoisting ring that hooks die body one side with overhead traveling crane lifts by crane the upset die body, iron alloy block in the casting cavity can be toppled over out, can complete quickly and easily the operation that the demoulding is tapped a blast furnace.
5. broken processing is delivered to Runout area after iron alloy block is naturally cooling, knocks the piece material that it is crushed to granularity requirements up to specification with hand hammer,
6. qualified material packing warehouse-in after the finished product warehouse-in is processed fragmentation, be the ferroalloy finished product.
The casting method that the present invention proposes also has following technical characterictic:
In " the 2. ingot mould is installed " step by after " the 1. smooth scope of operation " operation, go back abutting joint transition flow metal trough between the molten iron overflow launder of die casting machine and first ingot mould ante-chamber wall, 3. can make the ferroalloy finished product to 6. step operation by the again, the transition flow metal trough is installed to extenuating molten hot metal, ingot mould cast concave surface cavity wall be formed and washes away corrosion function certain effect is arranged.
In the step of " the 1. smooth scope of operation ", flow to and lay one group of supporting rail or I-steel along pouring molten iron by horizontal arranging mode in the front of the die casting machine port of export, " 2. ingot mould is installed "
Step in, one group of ingot mould is that the tiling mounting means by " the die body side end face communicates near, molten iron overflow launder docking side by side " forms tiling dock arrangement on one group of supporting rail or I-steel, can form the heat-dissipating space every sky between ingot mould bottom surface and ground, be conducive to the operation of " topple over and tap a blast furnace ", can also effectively improve the surface quality of being cast into iron alloy block.
Also have " shrend quenching " step between " 4. topple over and tap a blast furnace " and " 5. broken processing ": the red heat iron alloy block that will pour out is put in to be contained in the iron container, send into its handling in water quenching pool and it is submerged in water body with driving and quench, the Sheng iron container handling that perhaps will fill red heat alloy iron block is held on to water quenching pool, the water pipe shower nozzle waters and quenches to the alloy iron block fierceness of red heat, the control cool time is 200s ~ 500s, carry out draining, deliver to Runout area after naturally cooling and carry out fragmentation processing.The theoretical foundation that shrend is quenched is: high temperature red heat iron alloy block is under fierce water-cooled effect, can produce on surface cold micro-crack because expanding with heat and contract with cold, inside metallographic will be thick vertical column crystallization by trickle fine and close crystal transfer, to make cooled iron alloy block toughness weaken fragility increases, and is particularly conducive to " broken processing " operation.
The present invention compared with the existing technology has following outstanding substantive distinguishing features and marked improvement:
the present invention has initiated the flow structure that the molten iron overflow launder is set at the casting cavity chamber of die body wall top end face, make one group of ingot mould can be on ground grading by " the die body side end face side by side near, molten iron overflow launder docking communicates " the tiling mounting means form and have the tiling docking arrangement that a plurality of molten iron flow to, be convenient to especially the manufacturing of ingot mould, arrange and install and cast, the operation of tapping a blast furnace, thoroughly abandoned the existing casting of tradition by one group of ingot mould of stagger mode, greatly extenuated high temperature liquid iron washing away corrosion function and then can effectively extend service life of ingot mould casting cavity inwall, can also alleviate labor strength, guarantee the security performance of production operation.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A view of Fig. 1, shows the outward-dipping structural representation of casting cavity chamber wall of die body.
Fig. 3 is the B-B view of Fig. 1, is illustrated in the structural representation that one group of molten iron overflow launder is set on the chamber wall of casting cavity.
Fig. 4 is the schematic diagram (amplification) that hoisting ring the inner arranges pawl structures.
Fig. 5 flows to the layout drawing of one group of ingot mould of tiling abutting joint along two molten iron.
Fig. 6 flows to another layout drawing of one group of ingot mould of tiling abutting joint along a molten iron.
Fig. 7 flows to the another layout drawing of one group of ingot mould of tiling abutting joint along three molten iron.
Fig. 8 is casting process flow chart of the present invention.
Description of symbols in accompanying drawing:
1 is the molten iron overflow launder, and 2 are the casting cavity, and 3 is die body, and 4 is hoisting ring, and 5 is pawl structures, and 6 is die casting machine, and 7 is the transition flow metal trough, and 8 is arrow.
The specific embodiment
Further describe embodiments of the invention below in conjunction with accompanying drawing:
a kind of tiling dock ingot mould, it mainly consists of die body 3 and the one group of hoisting ring 4 that is fixedly installed in die body 3, pawl structures 5 is arranged in the inner of hoisting ring 4 has the firm performance of good installation, said one group of hoisting ring 4 can be installed on the outside endface position of die body 3, also one group of hoisting ring 4 can be installed on the top end face position of die body 3, said die body 3 is provided with internal face and becomes the casting cavity 2 of outer incline structure, the length of casting cavity 2 is 2000mm, width is 1200mm, the degree of depth is 200mm, controlling flare oblique angle α is 135o, have the splendid demoulding and get the iron effect in reality casting production operation, on the offside chamber wall of casting cavity 2, a molten iron overflow launder 1 is set respectively, also can on three chamber walls of casting cavity 2, a molten iron overflow launder 1 be set respectively, flow in order to can farthest meet along a molten iron, or along two molten iron, flow to, or along three molten iron, flow to by the tiling dock and arrange the needs that one group of ingot mould is installed.
Produce the casting method of ferroalloy with above-mentioned tiling dock ingot mould, it carries out as follows:
1. the smooth scope of operation arranges ground in the on-the-spot compacting of casting and forms smooth pouring practice face, lay die casting machine 6 on smooth pouring practice ground, perhaps flow to and lay one group of supporting rail or I-steel along pouring molten iron by horizontal arranging mode in the front of die casting machine 6 ports of export again.
2. ingot mould is installed according to once the cast quantity of one group of ingot mould of the required use of the amount of tapping a blast furnace calculative determination of electric furnace, one group of ingot mould is directly formed tiling dock arrangement by the tiling mounting means of " 1 docking communicates near, molten iron overflow launder side by side in die body 3 side end faces " on smooth pouring practice ground, perhaps one group of ingot mould is formed tiling dock arrangement by the tiling mounting means of " 1 docking communicates near, molten iron overflow launder side by side in die body 3 side end faces " on one group of supporting rail or I-steel, make the molten iron overflow launder 1 of first ingot mould ante-chamber wall butt up against the port of export of die casting machine 6, also can be between the molten iron overflow launder 1 of die casting machine 6 and first ingot mould ante-chamber wall transition flow metal trough 7 of abutting joint again, can and take the concrete condition at casting operation scene into consideration according to the ferroalloy production technology process, one group of ingot mould is flowed to along a molten iron dock that tiles as shown in Figure 6 arrange installation, perhaps one group of ingot mould is flowed to along two molten iron the dock that tiles as shown in Figure 5 and arrange installation, perhaps one group of ingot mould is flowed to along three molten iron the dock that tiles as shown in Figure 7 and arrange installation, the molten iron overflow launder 1 foreign obstruction that conscientiously checks docking makes it to keep the smooth and easy overflow situation that communicates, can carry out molten iron pouring practice.
3. pouring molten iron winches to the top of die casting machine 6 and slowly pours in die casting machine 6 with the ladle that overhead traveling crane will be loaded with the smelting molten hot metal, molten iron carries out horizontal overflow with the casting cavity 2 from the die casting machine 6 first ingot moulds of inflow as shown in arrow 8 molten iron overflow launder 1 interior, that communicate by docking successively again and one by one waters the casting cavity 2 of filling with one group of ingot mould, so far namely completes pouring practice.
4. toppling over taps a blast furnace waits for when the interior molten iron nature cooling surface temperature of casting cavity 2 is down to 700 ℃ ~ 1000 ℃, molten iron is setting and hardening gradually, the hoisting ring 4 that available overhead traveling crane hooks die body 3 one sides lifts by crane upset die body 3, iron alloy block in casting cavity 2 can be toppled over out, so far, namely complete the operation that the demoulding is tapped a blast furnace.Then rearrange and ingot mould is installed can be carried out pouring practice next time then.
5. the quench red heat iron alloy block that will pour out of shrend is put in and contains in the iron container, send into its handling in water quenching pool and it is submerged in water body with driving and quench, the Sheng iron container handling that perhaps will fill red heat alloy iron block is held on to water quenching pool, the water pipe shower nozzle waters and quenches to the alloy iron block fierceness of red heat, the control cool time is 200s ~ 500s, carry out draining, deliver to Runout area after naturally cooling and carry out fragmentation processing.
6. broken processing is delivered to Runout area after the iron alloy block of " shrend quenching " step process is naturally cooling, knocks the piece material that it is crushed to granularity requirements up to specification with hand hammer.
7. qualified material packing warehouse-in after the finished product warehouse-in is processed fragmentation, be the ferroalloy finished product.
Need to prove: in the step of above-mentioned " 2. ingot mould is installed ", also can adopt in casting cavity 2 and lay the mode of tapping a blast furnace of carrying iron hoop, when the molten iron condensing surface temperature in casting cavity 2 is down to 700 ℃ ~ 1000 ℃, molten iron setting and hardening gradually encases and carries iron hoop, only need hook with overhead traveling crane hook and propose upwards lifting of iron hoop, can cavity 2 be interior that iron alloy block is one by one extracted from casting.Adopt this mode of tapping a blast furnace, just need not again to arrange the repetitive operation that ingot mould is installed.
Claims (3)
1. method of dock direct casting ferroalloy that tiles, described tiling dock ingot mould comprises the die body (3) that is provided with casting cavity (2) and the one group of hoisting ring (4) that is fixedly installed in die body (3), be provided with one group of molten iron overflow launder (1) on the chamber wall of casting cavity (2), the internal face of casting cavity (2) is arranged to the outer incline structure, controlling flare oblique angle (α) is 92o ~ 160o, it is characterized in that: it carries out as follows
1. the smooth scope of operation arranges ground in the on-the-spot compacting of casting and forms smooth pouring practice face, lays die casting machine (6) on smooth pouring practice ground,
2. ingot mould is installed according to once the cast quantity of one group of ingot mould of the required use of the amount of tapping a blast furnace calculative determination of electric furnace, with one group of ingot mould on smooth pouring practice ground by " die body (3) side end face side by side near, molten iron overflow launder (1) docking communicates " the tiling mounting means form tiling dock arrangement, the molten iron overflow launder (1) of first ingot mould ante-chamber wall is butted up against the port of export of die casting machine (6), said one group of ingot mould is to flow to along a molten iron, or along two molten iron, flow to, or along three molten iron, flow to the dock layout installation of tiling, molten iron overflow launder (1) the foreign obstruction that checks docking makes it to keep the smooth and easy overflow situation that communicates,
3. pouring molten iron winches to the top of die casting machine (6) and slowly pours in die casting machine (6) with the ladle that overhead traveling crane will be loaded with the smelting molten hot metal, molten iron carries out horizontal overflow from the casting cavity (2) that die casting machine (6) flows into first ingot mould molten iron overflow launder (1) interior, that communicate by docking successively again and one by one waters the casting cavity (2) of filling with one group of ingot mould
4. toppling over taps a blast furnace waits for when the interior molten iron nature cooling surface temperature of casting cavity (2) is down to 700 ℃ ~ 1000 ℃, the hoisting ring (4) that hooks die body (3) one sides with overhead traveling crane lifts by crane upset die body (3), iron alloy block in casting cavity (2) can be toppled over out
5. broken processing is delivered to Runout area after iron alloy block is naturally cooling, knocks the piece material that it is crushed to granularity requirements up to specification with hand hammer,
6. qualified material packing warehouse-in after the finished product warehouse-in is processed fragmentation, be the ferroalloy finished product.
2. method according to claim 1 is characterized in that:
In " the 2. ingot mould is installed " step by after " the 1. smooth scope of operation " operation, go back abutting joint transition flow metal trough (7) between the molten iron overflow launder (1) of die casting machine (6) and first ingot mould ante-chamber wall, then by the, 3. can make the ferroalloy finished product to 6. step operation.
3. method according to claim 1, it is characterized in that: in the step of " the 1. smooth scope of operation ", front at die casting machine (6) port of export flows to and lays one group of supporting rail or I-steel along pouring molten iron by horizontal arranging mode, in the step of " 2. ingot mould is installed ", one group of ingot mould is that the tiling mounting means by " die body (3) side end face communicates near, molten iron overflow launder (1) docking side by side " forms tiling dock arrangement on one group of supporting rail or I-steel.
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| CN107721398B (en) * | 2017-11-25 | 2022-08-05 | 郑州远东耐火材料有限公司 | Positioning device for electric melting brick casting insulation can |
| CN108080573A (en) * | 2017-12-31 | 2018-05-29 | 龙南龙钇重稀土科技股份有限公司 | A kind of casting die with replaceable transition chute |
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