CN203253890U - Self-cooled molding steel die for casting steel ingot - Google Patents
Self-cooled molding steel die for casting steel ingot Download PDFInfo
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- CN203253890U CN203253890U CN 201320274373 CN201320274373U CN203253890U CN 203253890 U CN203253890 U CN 203253890U CN 201320274373 CN201320274373 CN 201320274373 CN 201320274373 U CN201320274373 U CN 201320274373U CN 203253890 U CN203253890 U CN 203253890U
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Abstract
The utility model discloses a self-cooled molding steel die for casting a steel ingot. A sandwich die wall is adopted; the inner wall of an inner layer die wall (N) is a heat-resistant casting die cavity (M); an upper pipe orifice (G1) and a lower pipe orifice (G2) are arranged on an outer layer steel die cavity (Y), and connected with a liquid delivery pipe (L); the inner layer die wall (N) and the outer layer die wall (Y) are sealed to form a cooling bin (Q); a molding steel die is matched with a steel die base (2), a casting base layer (1) and a casting device (5) for usage; a heated cooling liquid (S) is input into the cooling bin (Q) before the casting is carried out; a casting ladle (7) pours molten steel into the casting device (5); the molten steel passes through a casting channel (U) of the casting base layer (1), enters the molding steel die (3) through a channel opening (H) and a base pouring gate (T) of the steel die base (2), and is cooled to 80-90 DEG C in the molding steel die (3); input of the cooling liquid (S) is stopped; the cooling liquid (S) in the cooling bin (Q) is discharged; the molding steel die (3) is lifted by a crane and then the treatment of cast steel ingot is carried out. The steel ingot cast by the self-cooled molding die is good in quality and the casting efficient is high; the defective index is reduced to 0.2% from 5%; the service life of the die is prolonged by 10 times.
Description
Technical field
The utility model relates to metal casting device, relates in particular to the casting punching block.
Background technology
Metal casting is one of important foundation technology of machine-building.The casting mold that present domestic steel ingot shape casting adopts solid cast to make more, weight is large, die wall is thick, cost is high, and the mold weight of 1 ton of steel ingot of casting reaches 1.5 tons, and lifting, cast are wasted time and energy, need the cast iron die preheating before the cast, mould must cool off more than three hours naturally after the cast, just can carry out the next round cast and use, and effective access times of a mold only are about 80 times.Die life is short, scraps soon, and the manpower and materials loss is large.
The utility model content
The purpose of this utility model just provides a kind of teeming mould of new construction, and running is convenient in weight reduction, raise the efficiency, reduce die steel consumption, reduce the steel casting die cost, improve the quality of teeming, prolong die life, increase economic efficiency.
Task of the present utility model is finished like this: design and produce a kind of teeming self-cooled shaping steel die, shaping steel die adopts hollow sandwich die wall structure, the inwall of internal layer die wall is the high temperature resistant mold cavity of watering, outer die wall arranges upper orifice and lower nozzle, be connected with woven hose separately respectively, seal between internal layer die wall and the outer die wall, consist of the cooling storehouse of hollow sandwich, be communicated with woven hose by upper orifice and lower nozzle, inwardly input or outwards export cooling fluid.Shaping steel die and punching block base, cast basic unit, pouring attachment fit applications, shaping steel die is vertically set on the punching block base, be installed in the cast basic unit top that refractory material is made, establish the conduit port of pouring into a mould conduit in the shaping steel die bottom base cast gate by the punching block base and the cast basic unit and be communicated with.Cooling fluid must be heated to first 60～95 ℃, in the cooling storehouse of the woven hose molding punching block by connecting upper orifice, and by the woven hose output cooling storehouse that lower nozzle connects, forms the liquid communication circulating cooling system.During practical application, be ready to the corresponding raw material of electric furnace smelting, comprise the auxiliary material such as the alloying element of interpolation and desulfurizing agent, Dephosphorising agent, deoxidier, to water the ladle-lining fixation, shaping steel die is stood vertically on the punching block base, the punching block base is arranged in the cast basic unit, and pouring attachment is arranged on the centre of a plurality of shaping steel dies, and mouth is communicated with the cast conduit of pouring into a mould basic unit at the bottom of the pouring attachment.The cooling fluid that heats to the inner input in the cooling storehouse of shaping steel die by woven hose and upper orifice before the cast.Electric furnace energising adds the bottom furnace charge, all be molten into liquid state after, add 1～1.5% lime stone in the electric furnace and fluorite carries out dephosphorization, desulfurization, progressively add again various element materials and fully melt.Furnace charge is incubated 5～10 minutes after all melting, and fully stirs molten steel, makes distribution of material even, then carries out the stokehold chemical examination.According to the chemical examination compositional data, add corresponding alloy and regulate.After reaching standard code, be about to qualified molten steel and inject casting ladle.Water to wrap in and will fully toast before injecting molten steel, roasting temperature reaches about 1000 ℃ to dark red or red with the refractory material in the casting ladle, injects molten steel, and makes molten steel in casting ladle calm 5～10 minutes, promotes molten steel composition and temperature equalization.Casting ladle winches to pouring area by travelling crane hook, and it is solid and reliable to check that shaping steel die arranges, and the top arranges rising head, and the punching block temperature meets the cast requirement.After checking that each position is laid correctly, the control crane makes mouth at the bottom of the casting ladle of casting ladle bottom aim at the upper cast gate of pouring attachment, then open mouth at the bottom of the casting ladle, molten steel injects pouring attachment, cast conduit in mouth at the bottom of cast endoporus and the pouring attachment enters cast basic unit, base cast gate by the punching block base enters mould, until molten steel is full of die cavity and the rising head of shaping steel die fully, closes mouth at the bottom of the casting ladle.After being poured, in the rising head at top, add insulation material, keep liquid steel temperature, rising head is solidified slow down, play inside supplementary function, prevent the mass defects such as shrinkage porosite that may cause in the process of setting.Cooling fluid circulates in the double wall cooling storehouse of shaping steel die in the whole casting process, makes whole punching block temperature equalization, and cooling velocity is average, is heated evenly, and raises the efficiency when ensuring the quality of products.According to the shaping steel die specification that varies in size, steel ingot remains on respectively 15～55 minutes the cool time in shaping steel die.When treating that steel ingot is cooled to 80～90 ℃, the cooling fluid in the shaping steel die interlayer cooling storehouse is emitted, with driving shaping steel die is mentioned and hang away, cut off the steel ingot submarine gate, steel ingot is winched to the working area deposit.After naturally cooling to normal temperature, the chemical composition of sample analysis steel ingot again compares with the sample piece composition of stokehold chemical examination, and steel ingot is carried out ultrasonic examination.After the assay was approved, steel ingot is transported to the workshop semifinished product warehouse, enters later on forging process.If find underproof steel ingot, need identify separately, distinguish and deposit, melt down melting as the material of melting, guarantee that end product quality is good.
Manufacture experimently, test according to technique scheme, prove that the utility model materials are few, lightweight, rational in infrastructure, can save a large amount of mold materials; Adopt the good cooling results of cooling fluid, the steel ingot of cast is even, and is closely knit, and credit rating improves, and the rate of reducing the number of rejects and seconds is enhanced productivity, and has prolonged the service life of mould, has reached preferably predetermined purpose.
Description of drawings
Fig. 1 is aborning supporting application schematic diagram of the utility model;
Fig. 2 be Fig. 1 partly cut open structural representation;
Fig. 3 is the top view of shaping steel die 3 of the present utility model;
Fig. 4 is that the A of Fig. 3 is to the F-F cross-sectional view.
Among the figure, 1-cast basic unit, 2-punching block base, 3-shaping steel die, 4-rising head, 5-pouring attachment, 6-suspension hook, 7-casting ladle; A-line of vision symbol, mouth at the bottom of D-casting ladle, F-section symbols, G1-upper orifice, G2-lower nozzle, H-conduit port, J-upper cast gate, K-cast endoporus, L-woven hose, M-die cavity, N-internal layer die wall, Q-cooling storehouse, S-cooling fluid, T-base cast gate, U-cast conduit, mouth at the bottom of W-pouring attachment, Y-outer die wall.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is illustrated.
Consult Fig. 1, Fig. 2, two sleeve forming punching blocks 3 stand vertically respectively on the punching block base 2 on pouring attachment 5 both sides, and pouring attachment 5 and punching block base 2 all are arranged on above the cast basic unit 1.The cast endoporus K of pouring attachment 5 connects mouth W at the bottom of the pouring attachment from upper cast gate J, mouth W is communicated with the cast conduit U that cast is established in the basic unit 1 at the bottom of the pouring attachment, the base cast gate T of the bottom alignment punching block base 2 of shaping steel die 3 is communicated with the conduit port H of the 1 cast conduit U of cast basic unit by base cast gate T.Before the cast, in the cooling storehouse Q of shaping steel die 3, fill with the cooling fluid S of heating by woven hose L and upper orifice G1, and by lower nozzle G2 connection woven hose L outflow, form circulating cooling.During the cast steel ingot, the casting ladle 7 that will fill with molten steel by the suspension hook 6 of driving winch to pouring attachment 5 directly over, open mouth D at the bottom of the casting ladle, molten steel is injected the upper cast gate J of pouring attachment 5, flow to mouth W at the bottom of the pouring attachment along the cast endoporus K of pouring attachment 5, enter the cast conduit U of cast basic unit 1, punching block base 2 diffluences of molten steel along cast conduit U to both sides, by conduit port H and base cast gate T to shaping steel die 3 interior cast.Because the upper cast gate J of pouring attachment 5 is far above the top of shaping steel die 3, molten steel is able to pour into a mould unblockedly until the rising head 4 at shaping steel die 3 tops, after rising head 4 is full of, closes mouth D at the bottom of the casting ladle of casting ladle 7, stop cast, driving band suspension hook 6 casting ladle 7 that plays leaves pouring area.
Consult Fig. 3, Fig. 4, the two-layer cylindrical shape punching block that shaping steel die 3 becomes for Plate Welding, the cylinder shape hollow sandwich between internal layer die wall N and the outer die wall Y consist of cooling storehouse Q, and top and bottom seal with Plate Welding.The epimere of outer die wall Y is provided with upper orifice G1, and hypomere is provided with lower nozzle G2, can assemble woven hose L, to cooling off input and output cooling fluid S in the Q of storehouse.The internal layer die wall N endoporus of shaping steel die 3 is die cavity M of casting steel ingot, wants the application refractory material before the cast, forms high temperature resistant overcoat.The top of shaping steel die 3 arranges rising head 4, and the bottom is communicated with the base cast gate T of punching block base 2.
When steel ingot is produced in cast, the electric furnace energising adds furnace charge, heats up 50～60 minutes, furnace charge is molten for liquid, according to the requirement of the steel ingot trade mark, add various raw material fusings again, until the molten steel volume reaches the requirement of cast requirement in the electric furnace, under 1500～1600 ℃ of temperature, be incubated 5～10 minutes, stir simultaneously, promote balanced composition in the molten steel, then the stokehold chemical examination is carried out in sampling.During chemical examination, requiring the environment temperature of laboratory spectrometer is 20～25 ℃, and ambient humidity is lower than 70%, and the purity of argon that chemical examination is used is 99.999%, and the argon gas meter pressure is greater than 1.5Mpa/cm
2, the light room temperature of spectrometer is set as 35 ± 1 ℃, and vacuum is carried out on-the-spot sample analysis less than or equal to 10pa under the regulation experimental condition.The molten steel sample is chilled to normal temperature soon, and flat surface grinding is bright and clean smooth up and down with sample on grinding machine, puts into spectrometer and carries out chemical composition analysis.Add corresponding alloy according to laboratory analysis of data, regulate molten steel composition, reach standard-required after, can by emitting molten steel in the electric furnace to casting ladle 7, carry out aforementioned cast work.Before the cast, fill with in the cooling storehouse Q of shaping steel die 3 by woven hose L and upper orifice G1 and to be heated to 80～90 ℃ cooling fluid S, by the woven hose L output that lower nozzle G2 connects, shaping steel die 3 is carried out circulating cooling.Be poured, according to the size of cast steel ingot, corresponding shaping steel die 3 interior coolings 15～55 minutes, when treating that steel ingot is cooled to 80～90 ℃, stop to input cooling fluid S, the cooling fluid S that will cool off in the Q of storehouse by lower nozzle G2 and woven hose L emits, and with driving shaping steel die 3 is withdrawn.Cut off steel ingot in-gate, steel ingot is hung the steel ingot working area by pouring area, continue natural air cooling to normal temperature.The sample analysis chemical composition compares with stokehold chemical examination composition, and steel ingot is carried out ultrasonic examination again.After quality index was all qualified, transhipment entered the workshop semifinished product storehouse, forges successively processing.If off quality, then add sign and deposit separately, again melting after treating.
The cylinder steel ingot that adopts the utility model technology to make is stopped the casting flaws such as internal porosity, shrinkage porosite substantially, and product quality improves, and stabilizes to high-class product, and percent defective drops to present 0.2% by original 5%.Owing to adopt cooling fluid to carry out circulating cooling, steel ingot original cast iron die of ratio use cool time in mould shortens 2/3rds, and efficient improves greatly; Prolong 10 times or more than cast iron die the service life of shaping steel die 3, produces 10000 tons on steel ingot per year, can save about 200 tons in mould cast iron; Cooling fluid S is reusable more than 100 times.Operating cost of the present utility model is low, and efficient is high, and quality is good, and economic benefit and social benefit are remarkable, have good popularizing application prospect.
Claims (3)
1. teeming self-cooled shaping steel die, it is characterized in that shaping steel die (3), adopt hollow sandwich die wall structure, the inwall of internal layer die wall (N) is the high temperature resistant mold cavity (M) of watering, outer die wall (Y) arranges upper orifice (G1) and lower nozzle (G2), be connected with woven hose (L) separately respectively, sealing between internal layer die wall (N) and the outer die wall (Y), consist of the cooling storehouse (Q) of hollow sandwich, be communicated with woven hose (L) by upper orifice (G1) and lower nozzle (G2), inwardly input or outwards export cooling fluid (S).
2. according to teeming claimed in claim 1 self-cooled shaping steel die, it is characterized in that described shaping steel die (3) and punching block base (2), cast basic unit (1), pouring attachment (5) fit applications, shaping steel die (3) is vertically set on the punching block base (2), be installed in cast basic unit (1) top that refractory material is made, shaping steel die (3) the bottom base cast gate (T) by punching block base (2) with pour into a mould basic unit (1) in establish the conduit port (H) of pouring into a mould conduit (U) and be communicated with.
3. according to teeming claimed in claim 1 self-cooled shaping steel die, it is characterized in that described cooling fluid (S) must be heated to first 60～95 ℃, in the cooling storehouse (Q) of woven hose (L) the molding punching block (3) by connecting upper orifice (G1), and by woven hose (L) the output cooling storehouse (Q) that lower nozzle (G2) connects, form the liquid communication circulating cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274373 CN203253890U (en) | 2013-05-20 | 2013-05-20 | Self-cooled molding steel die for casting steel ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274373 CN203253890U (en) | 2013-05-20 | 2013-05-20 | Self-cooled molding steel die for casting steel ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253890U true CN203253890U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320274373 Expired - Fee Related CN203253890U (en) | 2013-05-20 | 2013-05-20 | Self-cooled molding steel die for casting steel ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240395A (en) * | 2013-05-20 | 2013-08-14 | 聊城市新联机械有限公司 | Self-cooled moulding steel moulds for casting steel ingots |
| CN103639365A (en) * | 2013-12-12 | 2014-03-19 | 江苏精工特种材料有限公司 | Combined type special steel casting die |
-
2013
- 2013-05-20 CN CN 201320274373 patent/CN203253890U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240395A (en) * | 2013-05-20 | 2013-08-14 | 聊城市新联机械有限公司 | Self-cooled moulding steel moulds for casting steel ingots |
| CN103240395B (en) * | 2013-05-20 | 2015-12-23 | 张宪 | A kind of teeming self-cooled shaping steel die |
| CN103639365A (en) * | 2013-12-12 | 2014-03-19 | 江苏精工特种材料有限公司 | Combined type special steel casting die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20170520 |