CN104128567B - The casting method and device of brake disc disk body and thus obtained brake disc disk body - Google Patents

The casting method and device of brake disc disk body and thus obtained brake disc disk body Download PDF

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Publication number
CN104128567B
CN104128567B CN201410416024.5A CN201410416024A CN104128567B CN 104128567 B CN104128567 B CN 104128567B CN 201410416024 A CN201410416024 A CN 201410416024A CN 104128567 B CN104128567 B CN 104128567B
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casting
rising head
brake disc
disc disk
ingate
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CN104128567A (en
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安朝阳
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CHINA MACHINERY INDUSTRIAL PRODUCTS Co Ltd
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CHINA MACHINERY INDUSTRIAL PRODUCTS Co Ltd
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Abstract

The invention discloses a kind of casting method of brake disc disk body and device, and thus obtained brake disc disk body, sunykatuib analysis is carried out to the casting technique and casting device of brake disc disk body by Computer Simulation Software first, determine the position of running gate system and system of risers, the rising head center of system of risers is placed in casting madial wall to any position of casting geometric center, bottom pour mold is carried out by the way of introducing molten metal is returned at bottom, wherein molten metal enters die cavity by rectification filtering bottom of device.The casting method and casting device of the brake disc disk body of the present invention can realize the consecutive solidification of casting and complete feeding, effectively prevent casting from occurring the defects such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle in casting process, ensure cast properties isotropism, it is ensured that the production with high-quality brake disc disk body.

Description

The casting method and device of brake disc disk body and thus obtained brake disc disk body
Technical field
The present invention relates to a kind of casting method, more particularly to a kind of casting suitable for bullet train cast steel brake disc disk body Method and apparatus, and thus obtained brake disc disk body.
Background technology
Brake disc disk body is the critical component of bullet train, is played an important role in train braking.Due to its working environment Complicated severe, inconvenience is changed in maintenance.It is required that brake disc product must have stable quality and longer service life.
Numerous studies show, in the case where material is certain, during the main cause of casting brake disc disk body failure is disk body There is the casting flaws such as shrinkage cavity and porosity, sand hole, crackle.
The bullet train of more than 250km/h speed, the quality to brake disc disk body proposes higher requirement, to shrinkage cavity, The tolerance of the casting flaws such as shrinkage porosite, sand hole, stomata, cinder hole, crackle is further reduced, meanwhile, to the gas and folder in material The content of debris is also made that strict limitation.This, which is required, must have corresponding rational running gate system and system of risers to protect Card, therefore, it is one to develop a kind of casting technique for the brake disc disk body for being capable of steady production bullet train cast steel and other alloys Individual very urgent problems.
Publication No. discloses a kind of casting method of brake disc for high-speed locomotive for CN102069148A patent of invention, wraps Include following steps:Solidification simulation, design core, core box making, coremaking, group core, smelting and pouring, shake out knockout and cleaning, the hair Bright 4-8 parts are poured into a mould in a moulding by the way of core composite pouring is folded without case, and production efficiency is high, but the casting of production is still There is substantial amounts of casting flaw.
Notification number discloses a kind of automotive brake disc-casting runner mechanism for CN202097365U utility model patent, wraps Sprue, cross gate, rising head and casting are included, slag trap I and slag trap II is provided between sprue and cross gate, cross gate and is emitted Slag trap III is provided between mouthful, the utility model devises three trace gather slag roads, can filter off in iron liquid more than 50% slag inclusion, still The casting of production still has substantial amounts of casting flaw.
The content of the invention
To overcome above-mentioned problems of the prior art, the present invention provides a kind of casting method of brake disc disk body, its Comprise the following steps according to sequencing:
(1)Simulation point is carried out to the casting technique and casting device of the brake disc disk body by Computer Simulation Software Analysis, determines the position of running gate system and system of risers, and it is several to casting that the rising head center of the system of risers is placed in casting madial wall Any position at what center;
Before sunykatuib analysis is carried out, need the technical requirements reached to analyze on casting first, simulated according to technical requirements The casting technique and casting device of brake disc disk body.The simulation softward that the present invention is selected includes being applied to Materials Processing Engineering and system Make any simulation softward in field, such as Magma, ProCast, NovaCast, AnyCast, Flow 3D, InteCast CAE, Ansys, Abaqus, Marc etc..Simulation softward is opened, physical model is set up, the grid division on model, setup parameter is carried out Sunykatuib analysis;According to analog result tuning parameter, sunykatuib analysis is then carried out again using new parameter;By constantly debugging Parameter, obtains reaching the casting technique and casting device of casting techniques requirement.The present invention is final to determine by a large amount of simulations The position of running gate system and system of risers, wherein when the rising head center of system of risers is placed in casting madial wall into casting geometry During any position of the heart, analog result is shown, the casting such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle in brake disc disk body Defect is minimum, even without defect.In terms of sunykatuib analysis result, only when the Position Design of running gate system and system of risers is closed Reason, and cooperate, it could effectively prevent brake disc disk body from occurring defect in casting process so that Filling Processes of Castings is uniformly close Real, its combination property and total quality are increased substantially.The running gate system of the present invention can effectively ensure that the steady equilibrium of molten metal is filled Type, smooth in exhaust, prevent molten metal in cavity filling process because turbulent flow splashes and the reason such as erosion to die cavity produce casting The casting flaws such as sand hole, cinder hole, stomata, while can strengthen the consecutive solidification trend of casting, improve the feeding efficiency of rising head;Feeding Rising head in system coordinates with subsidy can realize the consecutive solidification of casting, while ensuring that it realizes benefit completely in process of setting Contracting, prevents casting from the defects such as shrinkage cavity and porosity occur, it is ensured that cast properties isotropism, prevents casting from deforming.
(2)According to step(1)Sunykatuib analysis result, formulate the casting technique of the brake disc disk body, returned and drawn the bottom of using The mode for entering molten metal carries out bottom pour mold, and wherein molten metal enters die cavity by rectification filtering bottom of device;
During the actual casting of brake disc disk body, molten metal enters the parameters such as mode, position, the flow velocity of die cavity It is intended to meet analog result.
(3)The position of making casting device, its running gate system and system of risers meets step(1)The knot of middle sunykatuib analysis Really;
In actual casting device, position, shape, size, the shape of rising head and the number of running gate system and system of risers The parameters such as amount are intended to meet analog result;
(4)Make core;
(5)Mould assembling;
(6)Smelting and pouring;
(7)Shake out knockout is simultaneously cleared up, excision rising head part;
(8)Roughing and heat treatment are carried out to casting;
(9)Modifier treatment and finishing are carried out to casting.
The purpose of heat treatment is to eliminate column crystal, thick equiax crystal and the dendritic segregation in cast structure, is eliminated residual Residue stress and segmental defect, improve the mechanical property of casting.Modifier treatment is quenching and the dual heat treatment of high tempering, its mesh Be to ensure that casting has excellent comprehensive mechanical performance, not only with higher intensity but also with higher plasticity and toughness.It is right Casting carries out Non-Destructive Testing, while meeting the examination requirements of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection.It is logical Cross brake disc disk body prepared by above-mentioned casting method, its yield strength σ0.2≥950MPa。
Preferably, the quantity of the rising head is one, and rising head center is placed in the position of casting geometric center.
In any of the above-described scheme preferably, the quantity of the rising head is one, and rising head center is placed in apart from casting Geometric center is 10-15mm position.
When rising head is one, rising head bottom one ingate of correspondence, rising head center and ingate center are placed in casting Position near geometric center or casting geometric center.Molten metal is flowed from ingate to surrounding, and realization steadily fills type in a balanced way, There is no the casting flaws such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle in prepared brake disc disk body.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and being evenly distributed on casting On same circumference centered on geometric center position.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and rising head center is placed in casting The position of madial wall.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and rising head center is placed in distance Casting geometric center is(1/2)R position, wherein R are distance of the casting madial wall to casting geometric center.
When rising head for it is multiple when, be not that each rising head bottom corresponds to an ingate, can be to be poured in subsection setup Mouthful.Rising head center and ingate center are placed in casting madial wall or the position apart from casting geometric center certain distance.Metal Liquid is flowed from each ingate to surrounding, realizes that steady fill in a balanced way does not have shrinkage cavity, contracting in type, prepared brake disc disk body The casting flaws such as pine, sand hole, stomata, cinder hole, crackle.
In any of the above-described scheme preferably, the quantity of the rising head is six or eight.
In any of the above-described scheme preferably, ingate is placed in the bottom of the rising head, and is connected with casting.Ingate Under the rising head of feeding casting, connected as one with rising head, improve feeding efficiency.
In any of the above-described scheme preferably, the molten metal is 20-60cm/s in the flow velocity of ingate, it is ensured that metal Liquid steadily fills type in a balanced way.
In any of the above-described scheme preferably, the rate of climb of the molten metal in casting is 15-35mm/s, it is ensured that Molten metal steadily fills type in a balanced way.
The casting method of the brake disc disk body of the present invention can realize the consecutive solidification of casting and complete feeding, effectively prevent casting There are the defects such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle in casting process in part, it is ensured that cast properties isotropism, protects Production of the card with high-quality brake disc disk body.
The present invention also provides a kind of casting device of brake disc disk body, and it includes running gate system and system of risers, described to pour Injection system includes sprue cup, sprue, cross gate, ingate and rectification filter, and the system of risers includes rising head and benefit Patch, the rising head center is placed in casting madial wall to any position of casting geometric center.
When running gate system and system of risers Position Design rationally, and cooperate, could effectively prevent brake disc disk There is defect in casting process in body.Running gate system can effectively ensure that type is filled in the steady equilibrium of molten metal, and smooth in exhaust prevents metal Liquid in cavity filling process because turbulent flow splashes and the reason such as erosion to die cavity casting is produced the casting such as sand hole, cinder hole, stomata Defect, while can strengthen the consecutive solidification trend of casting, improves the feeding efficiency of rising head;Rising head in system of risers is matched somebody with somebody with subsidy Conjunction can realize the consecutive solidification of casting, while ensuring that it realizes complete feeding in process of setting, prevent casting from shrinkage cavity, contracting occur The defects such as pine, it is ensured that cast properties isotropism, prevent casting from deforming.The rising head center of system of risers is placed on the inside of casting Wall to casting geometric center any position when, there is no shrinkage cavity and porosity, sand hole, stomata, slag in prepared brake disc disk body The casting flaws such as hole, crackle.
Preferably, the running gate system also includes cross gate overflow segment.Cross gate overflow segment is the extension of cross gate Point, for collecting the initial period into the molten metal in running gate system, these molten metals temperature because of flush clean running gate system Decline, while become unclean, it is in order to avoid the cold and uncleanly molten metal in the part enters die cavity to be collected Influence casting quality.
In any of the above-described scheme preferably, the running gate system also includes collection slag overflow piece and collection slag exhaust rod.Collection Slag overflow piece is used to collect the most long cold and uncleanly molten metal of flow when filling type;Die cavity when collection slag exhaust rod is conducive to filling type Exhaust, prevent gas from producing stomata in casting.
In any of the above-described scheme preferably, the sprue cup, sprue, cross gate and cross gate overflow segment phase successively Even, it is easy to molten metal to be circulated before die cavity is entered smooth, can smoothly enters ingate, and then enter die cavity;The rising head It is connected with subsidy, subsidy is connected with casting, subsidy can be as Feeding channel, and the two coordinates contraction of the compensation casting in solidification, Avoid producing the defects such as shrinkage cavity and porosity.
In any of the above-described scheme preferably, the ingate is placed in the lower section of rising head and the top of cross gate.
In any of the above-described scheme preferably, ingate is placed in the bottom of the rising head, and is connected with casting.
In any of the above-described scheme preferably, the rectification filter is placed between ingate and cross gate.Metal After liquid is stable in cross gate, it is introduced into rectification filter and is filtered, slag inclusion, impurity etc. is made to the thing of casting generation defect Matter is filtered out, subsequently into ingate, and then enters die cavity, effectively prevents casting from producing the defects such as cinder hole, sand hole, crackle.
In any of the above-described scheme preferably, the quantity of the rising head is one, and rising head center is placed in casting geometry The position at center.
In any of the above-described scheme preferably, the quantity of the rising head is one, and rising head center is placed in apart from casting Geometric center is 10-15mm position.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and being evenly distributed on casting On same circumference centered on geometric center position.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and rising head center is placed in casting The position of madial wall.
In any of the above-described scheme preferably, the quantity at least two of the rising head, and rising head center is placed in distance Casting geometric center is(1/2)R position, wherein R are distance of the casting madial wall to casting geometric center.
In any of the above-described scheme preferably, the quantity of the rising head is six or eight.
In any of the above-described scheme preferably, the sprue cup, sprue, cross gate and cross gate overflow segment are by fire resisting Material is made, such as earthenware and/or Ceramic Tiles etc., because refractory material has good heat preservation property.
In any of the above-described scheme preferably, the ingate is made up of refractory material or formed by sand mold.Ingate The refractory material that can have good heat preservation property by earthenware and/or Ceramic Tiles etc. is made, and can also be formed by sand mold, sand mold has Good heat insulation effect.
In any of the above-described scheme preferably, the rising head is formed or the cladding one layer of heat preservation fire resisting of rising head outside by sand mold Material.Sand mold also has good heat retaining and exothermal effect, and the tool such as one layer of fire resisting asbestos, ceramic fibre can be also coated on the outside of rising head There is the heat insulating refractory material of good heat retaining and exothermal effect.
In any of the above-described scheme preferably, the subsidy is formed by metal material or heat insulating refractory material.Subsidy is The passage of feeding, coordinates with rising head, compensation is played a part of to casting.During feeding, if the shape of increase casting, is subsidized by gold Category material is formed, and the metal material is identical with the material of casting;During feeding, if not increasing the shape of casting, subsidize by being incubated Refractory material is formed, and plays a part of heat retaining and exothermal.
In any of the above-described scheme preferably, the lower edges that the collection slag overflow piece is placed on the outside of casting.
In any of the above-described scheme preferably, the collection slag exhaust rod is placed on the outside of casting, and with the collection of lower edges Slag overflow piece is connected.
In any of the above-described scheme preferably, the rising head is shaped as cylinder, oval body or polyhedron.Rising head is horizontal Section can be circle, kidney ellipsoid, trapezoidal, pentagon, hexagon etc..
The casting device of the brake disc disk body of the present invention can realize the consecutive solidification of casting and complete feeding, effectively prevent casting There are the defects such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle in casting process in part, it is ensured that cast properties isotropism, protects Production of the card with high-quality brake disc disk body.
The present invention also provides a kind of brake disc disk body, and the disk body is made up of any of the above-described kind of casting method and casting device. Prepared brake disc disk body does not have the casting flaws such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle, and performance isotropism, With higher and uniform mechanical property.
The casting method of the present invention and/or the running gate system and system of risers of casting device are applicable to cast steel and other conjunctions The production of the brake disc of high-speed train disk body of gold.
Brief description of the drawings
Fig. 1 is the process chart of the casting method of the brake disc disk body according to the present invention;
Fig. 2 is that the shrinkage porosity defect of contraction cavity of a preferred embodiment of the casting method of the brake disc disk body according to the present invention is simulated Display figure;
Fig. 3 is the profile of a preferred embodiment of the casting device of the brake disc disk body according to the present invention;
Fig. 4 is the three-dimensional structure diagram of another preferred embodiment of the casting device of the brake disc disk body according to the present invention;
Fig. 5 is 45 ° of Fig. 4 of the casting device of the brake disc disk body according to present invention preferred embodiment and looks up three-dimensional knot Composition;
Fig. 6 is the three-dimensional structure diagram of another preferred embodiment of the casting device of the brake disc disk body according to the present invention;
Fig. 7 is 45 ° of Fig. 6 of the casting device of the brake disc disk body according to present invention preferred embodiment and looks up three-dimensional knot Composition.
Explanation is marked in figure:1- casting, 2- rising heads, 3- subsidies, 4- sprue cups, 5- sprues, 6- cross gates, 7- cross gates Overflow segment, 8- ingates, 9- ingates, 10- rectification filters, 11- collection slag overflow pieces, 12- collection slag exhaust rod, 13- shrinkage cavities Shrinkage porosite.
Embodiment
In order to be further understood that the content of the invention of the present invention, the present invention is elaborated below in conjunction with specific embodiment.
Embodiment one:
With speed per hour 350km/h bullet train cast steel brake disc reel disk body(External diameter is 600mm, and internal diameter is 240mm,)For Example, the technological process of its casting method is as shown in figure 1, it comprises the following steps according to sequencing:
(1)Sunykatuib analysis is carried out to the casting technique and casting device of brake disc disk body by Computer Simulation Software, really Determine the position of running gate system and system of risers, the center of rising head 2 of system of risers is placed in the geometric center position of casting 1;
(2)According to step(1)Sunykatuib analysis result, formulate the casting technique of the brake disc disk body, returned and drawn the bottom of using The mode for entering molten metal carries out bottom pour mold, and wherein molten metal enters die cavity by the bottom of rectification filter 10;
(3)The position of making casting device, its running gate system and system of risers meets step(1)The knot of middle sunykatuib analysis Really;
(4)Make core;
(5)Mould assembling;
(6)Smelting and pouring;
(7)Shake out knockout is simultaneously cleared up, excision rising head part;
(8)Roughing and heat treatment are carried out to casting;
(9)Modifier treatment and finishing are carried out to casting.
Sunykatuib analysis is carried out to casting technique and casting device from Magma simulation softwards.According to best simulation result, system Fixed actual technical process for casting and actual casting device.In the casting process of brake disc disk body, molten metal enters die cavity The parameters such as mode, position, flow velocity be intended to meet analog result;The position of running gate system and system of risers in casting device Put, shape, size, emit the parameters such as mouth-shaped and quantity and be also intended to meet analog result.
The quantity of rising head 2 is one, its bottom one ingate 9 of correspondence.The center of rising head 2 and the center of ingate 9 are placed in casting The geometric center position of part 1.Molten metal is flowed from ingate to surrounding, and that realizes stable equilibrium fills type.Rising head 2 is shaped as cylinder Body, a diameter of 150mm is highly 150mm.
Analyzed by Magma simulation softwards, rising head 2 is one, and the center of rising head 2 is when being placed in 1 geometric center position of casting, There is no the casting flaws such as shrinkage cavity shrinkage porosity 13, sand hole, stomata, cinder hole, crackle in prepared brake disc disk body.As shown in Fig. 2 casting The display of part 1 and rising head 2 shrinkage porosity defect of contraction cavity after solidification, simulation shows that all shrinkage cavity shrinkage porosities 13 are all concentrated in rising head 2, The inner homogeneous of casting 1 is fine and close, without shrinkage cavity shrinkage porosity 13.Molten metal is 20cm/s in the flow velocity of ingate 9, and molten metal is in casting 1 In the rate of climb be 15mm/s.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=950MPa。
As shown in figure 3, a kind of casting device of brake disc disk body, it includes running gate system and system of risers, running gate system Including sprue cup 4, sprue 5, cross gate 6, ingate 8 and rectification filter 10, system of risers includes rising head 2 and subsidy 3, The center of rising head 2 is placed in the geometric center position of casting 1.
Running gate system also includes cross gate overflow segment 7, collection slag overflow piece 11 and collection slag exhaust rod 12.Sprue cup 4, sprue 5th, cross gate 6 and cross gate overflow segment 7 are sequentially connected, and rising head 2 is connected with subsidy 36.Ingate 8 is placed in lower section and the horizontal stroke of rising head 2 The top of running channel 6.Ingate 9 is placed in the bottom of rising head 2, and is connected with casting 1.Rectification filter 10 be placed in ingate 8 with Between cross gate 6.
The quantity of rising head 2 is one, and it is shaped as cylinder, and a diameter of 150mm is highly 150mm.The center of rising head 2 and interior The center of cast gate 9 is placed in the geometric center position of casting 1.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by refractory material;Ingate 8 is by fire resisting Material is made;Rising head 2 is formed by sand mold;During feeding, the shape of casting need to be increased, thus subsidy 3 by with casting material identical Metal material is formed.
Collection slag overflow piece 11 is placed in the lower edges in the outside of casting 1;There are two collection slag exhaust rods 12, be distributed in outside casting 1 Side, and be connected with the collection slag overflow piece 11 of lower edges.
A kind of brake disc disk body, is prepared from by above-mentioned casting method and casting device.Prepared brake disc disk body There is no the casting flaws such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle, and performance isotropism, with higher and uniform power Learn performance.
Embodiment two:
With speed per hour 250km/h bullet train cast steel brake disc reel disk body(External diameter is 610mm, and internal diameter is 240mm,)For Example, the technological process of its casting method is as shown in figure 1, it comprises the following steps according to sequencing:
(1)Sunykatuib analysis is carried out to the casting technique and casting device of brake disc disk body by Computer Simulation Software, really Determine the position of running gate system and system of risers, the center of rising head 2 of system of risers is placed in the geometric center position of casting 1;
(2)According to step(1)Sunykatuib analysis result, formulate the casting technique of the brake disc disk body, returned and drawn the bottom of using The mode for entering molten metal carries out bottom pour mold, and wherein molten metal enters die cavity by the bottom of rectification filter 10;
(3)The position of making casting device, its running gate system and system of risers meets step(1)The knot of middle sunykatuib analysis Really;
(4)Make core;
(5)Mould assembling;
(6)Smelting and pouring;
(7)Shake out knockout is simultaneously cleared up, excision rising head part;
(8)Roughing and heat treatment are carried out to casting;
(9)Modifier treatment and finishing are carried out to casting.
Sunykatuib analysis is carried out from ProCast simulation softwards.According to best simulation result, actual casting technique stream is formulated Journey and actual casting device.In the casting process of brake disc disk body, molten metal enters mode, position, flow velocity of die cavity etc. Parameters are intended to meet analog result;Each ginseng such as the position of running gate system and system of risers, shape, size in casting device Number is also intended to meet analog result.
The quantity of rising head 2 is one, its bottom one ingate 9 of correspondence.The center of rising head 2 and the center of ingate 9 are placed in casting The geometric center position of part 1.Rising head 2 is shaped as cylinder, and a diameter of 155mm is highly 155mm.Stream of the molten metal in ingate 9 Speed is 60cm/s, and the rate of climb of the molten metal in casting 1 is 25mm/s.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=980MPa。
As shown in Figure 4 and Figure 5, a kind of casting device of brake disc disk body, it includes running gate system and system of risers, cast System includes sprue cup 4, sprue 5, cross gate 6, ingate 8 and rectification filter 10, and system of risers includes rising head 2 and mended Patch 3, the center of rising head 2 is placed in the geometric center position of casting 1.
Running gate system also includes cross gate overflow segment 7, collection slag overflow piece 11 and collection slag exhaust rod 12.Sprue cup 4, sprue 5th, cross gate 6 and cross gate overflow segment 7 are sequentially connected, and rising head 2 is connected with subsidy 3.Ingate 8 is placed in lower section and the horizontal stroke of rising head 2 The top of running channel 6.Ingate 9 is placed in the bottom of rising head 2, and is connected with casting 1.Rectification filter 10 be placed in ingate 8 with Between cross gate 6.
The quantity of rising head 2 is one, is shaped as cylinder, a diameter of 155mm is highly 155mm.The center of rising head 2 and interior pour 9 centers of mouth are placed in the geometric center position of casting 1.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by earthenware;Ingate 8 is by sand mold shape Into;The outer 2 sides cladding one layer of heat preservation refractory material of rising head;Subsidy 3 is formed by heat insulating refractory material.
Collection slag overflow piece 11 is placed in the lower edges in the outside of casting 1;There are four collection slag exhaust rods 12, be distributed in outside casting 1 Side, and be connected with the collection slag overflow piece 11 of lower edges.
A kind of brake disc disk body, is prepared from by above-mentioned casting method and casting device.Prepared brake disc disk body There is no the casting flaws such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle, and performance isotropism, with higher and uniform power Learn performance.
Embodiment three:
With speed per hour 200km/h bullet train cast steel brake disc reel disk body(External diameter is 610mm, and internal diameter is 250mm,)For Example, its casting method and casting device and embodiment one are essentially identical.
Sunykatuib analysis is carried out from Magma simulation softwards, determines that the center of rising head 2 of system of risers is placed in apart from casting more than 1 What center is 10mm position.The quantity of rising head 2 is one, is shaped as cylinder, a diameter of 145mm is highly 145mm.Rising head 2 Bottom one ingate 9 of correspondence, the center of rising head 2 and the center of ingate 9 are placed in apart from the position that the geometric center of casting 1 is 10mm Put.Molten metal is 30cm/s in the flow velocity of ingate 9;The rate of climb of the molten metal in casting 1 is 17mm/s.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by Ceramic Tiles;Ingate 8 is by earthenware It is made;The outside of rising head 2 one layer of fire resisting asbestos of cladding;Subsidy 3 is formed by heat insulating refractory material.There are six collection slag exhaust rods 12, It is distributed on the outside of casting, and is connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1000MPa。
Example IV:
With speed per hour 350km/h bullet train cast steel brake disc reel disk body(External diameter is 610mm, and internal diameter is 240mm,)For Example, its casting method and casting device and embodiment one are essentially identical.
Sunykatuib analysis is carried out from NovaCast simulation softwards, determines that the center of rising head 2 of system of risers is placed in apart from casting 1 Geometric center is 15mm position.The quantity of rising head 2 is one, is shaped as cylinder, a diameter of 155mm is highly 155mm.Emit It is 15mm's that 2 bottoms of mouth, one ingate 9 of correspondence, the center of rising head 2 and the center of ingate 9, which are placed in apart from the geometric center of casting 1, Position.Molten metal is 50cm/s in the flow velocity of ingate 9;The rate of climb of the molten metal in casting 1 is 23mm/s.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are mixed by earthenware and Ceramic Tiles;Inside pour Road 8 is made up of Ceramic Tiles;The outside of rising head 2 one layer of ceramic fibre of cladding;Subsidy 3 by with casting material identical metal material shape Into.There are eight collection slag exhaust rods 12, be distributed on the outside of casting, and be connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1050MPa。
Embodiment five:
With speed per hour 350km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 600mm, and internal diameter is 240mm,)For Example, the technological process of its casting method is as shown in figure 1, it comprises the following steps according to sequencing:
(1)Sunykatuib analysis is carried out to the casting technique and casting device of brake disc disk body by Computer Simulation Software, really Determine the position of running gate system and system of risers, the center of rising head 2 of system of risers is placed in is apart from the geometric center of casting 1(1/2)R's Position, wherein R are distance of the madial wall of casting 1 to the geometric center of casting 1;
(2)According to step(1)Sunykatuib analysis result, formulate the casting technique of the brake disc disk body, returned and drawn the bottom of using The mode for entering molten metal carries out bottom pour mold, and wherein molten metal enters die cavity by the bottom of rectification filter 10;
(3)The position of making casting device, its running gate system and system of risers meets step(1)The knot of middle sunykatuib analysis Really;
(4)Make core;
(5)Mould assembling;
(6)Smelting and pouring;
(7)Shake out knockout is simultaneously cleared up, excision rising head part;
(8)Roughing and heat treatment are carried out to casting;
(9)Modifier treatment and finishing are carried out to casting.
Sunykatuib analysis is carried out to casting technique and casting device from Magma simulation softwards.According to best simulation result, system Fixed actual technical process for casting and actual casting device.In the casting process of brake disc disk body, molten metal enters die cavity The parameters such as mode, position, flow velocity be intended to meet analog result;The position of running gate system and system of risers in casting device Put, the parameters such as shape, size, the quantity of rising head 2 and shape are also intended to meet analog result.
The quantity of rising head 2 is six, is shaped as polyhedron, length is 200mm, and width is 100mm, is highly 200mm.One One ingate 9 of correspondence of rising head 2, one ingate 8 of correspondence of ingate 9.The center of rising head 2 and the center of ingate 9 are placed in It is apart from the geometric center of casting 1(1/2)R position, wherein R are distance of the madial wall of casting 1 to the geometric center of casting 1.Metal Liquid is flowed to surrounding respectively from six ingates 9, and that realizes stable equilibrium fills type.Molten metal is 40cm/ in the flow velocity of ingate 9 S, the rate of climb of the molten metal in casting 1 is 20mm/s.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1200MPa。
As shown in Figure 6 and Figure 7, a kind of casting device of brake disc disk body, it includes running gate system and system of risers, cast System includes sprue cup 4, sprue 5, cross gate 6, ingate 8 and rectification filter 10, and system of risers includes rising head 2 and mended Patch 3, the center of rising head 2 is placed in is apart from the geometric center of casting 1(1/2)R position, wherein R are the madial wall of casting 1 to casting more than 1 The distance at what center.
Running gate system also includes cross gate overflow segment 7, collection slag overflow piece 11 and collection slag exhaust rod 12.Sprue cup 4, sprue 5th, cross gate 6 and cross gate overflow segment 7 are sequentially connected, and rising head 2 is connected with subsidy 3.Ingate 8 is placed in lower section and the horizontal stroke of rising head 2 The top of running channel 6.Ingate 9 is placed in the bottom of rising head 2, and is connected with casting 1.Rectification filter 10 be placed in ingate 8 with Between cross gate 6.
The quantity of rising head 2 is six, is shaped as polyhedron, length is 200mm, and width is 100mm, is highly 200mm.Rising head 2 centers and the center of ingate 9 are placed in(1/2)R position, wherein R be the madial wall of casting 1 extremely The distance of the geometric center of casting 1.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by refractory material;Ingate 8 is by ceramics Brick is made;The outside of rising head 2 one layer of ceramic fibre of cladding;Subsidy 3 is formed by heat insulating refractory material.
The lower edges that collection slag overflow piece 11 is placed on the outside of casting;There are six collection slag exhaust rods 12, be distributed on the outside of casting, And be connected with the collection slag overflow piece 11 of lower edges.
A kind of brake disc disk body, the disk body is made up of above-mentioned casting method and casting device.Prepared brake disc disk body There is no the casting flaws such as shrinkage cavity and porosity, sand hole, stomata, cinder hole, crackle, and performance isotropism, with higher and uniform power Learn performance.
Embodiment six:
With speed per hour 250km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 260mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as oval body, length is 230mm, and width is 120mm, is highly 230mm.Rising head 2 centers and the center of ingate 9 are placed in(1/2)R position, wherein R be the madial wall of casting 1 extremely The distance of the geometric center of casting 1.Molten metal is 35cm/s in the flow velocity of ingate 9;The rate of climb of the molten metal in casting 1 be 18mm/s。
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by earthenware;Ingate 8 is by sand mold shape Into;Rising head 2 is formed by sand mold;Subsidy 3 with the material identical metal material of casting 1 by forming.There are six collection slag exhaust rods 12, It is distributed on the outside of casting, and is connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1250MPa。
Embodiment seven:
With speed per hour 200km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 600mm, and internal diameter is 250mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is two, is shaped as polyhedron, length is 210mm, and width is 110mm, is highly 210mm.Rising head 2 centers and the center of ingate 9 are placed in the position of the madial wall of casting 1.Molten metal is 45cm/s in the flow velocity of ingate 9;Metal The rate of climb of the liquid in casting 1 is 22mm/s.
Sprue cup 4, sprue 5, cross gate 6 and cross gate overflow segment 7 are made by refractory material;Ingate 8 is by ceramics Pipe is made;The outside of rising head 2 one layer of fire resisting asbestos of cladding;Subsidy 3 is formed by heat insulating refractory material.There are four collection slag exhaust rods 12, It is distributed on the outside of casting, and is connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1350MPa。
Embodiment eight:
With speed per hour 250km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 240mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is six, is shaped as polyhedron, length is 200mm, and width is 100mm, is highly 250mm.Rising head 2 centers and the center of ingate 9 are placed in the position of the madial wall of casting 1, and six rising heads 2 are uniformly distributed in the madial wall of casting 1 On circumference.Molten metal is 35cm/s in the flow velocity of ingate 9;The rate of climb of the molten metal in casting 1 is 20mm/s.
Sprue cup 4, sprue 5, cross gate 6, the ingate of cross gate overflow segment 7 are made by earthenware;Wrap in the outside of rising head 2 Cover one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are ten collection slag exhaust rods 12, be distributed on the outside of casting, and with The collection slag overflow piece 11 of lower edges is connected.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1300MPa。
Embodiment nine:
With speed per hour 350km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 240mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as oval body, length is 220mm, and width is 100mm, is highly 220mm.Rising head 2 centers and the center of ingate 9 are placed in apart from the geometric center of casting 1 as on 50mm same circumference.Molten metal is in ingate 9 Flow velocity be 35cm/s;The rate of climb of the molten metal in casting 1 is 20mm/s.
Sprue cup 4, sprue 5, cross gate 6, the ingate of cross gate overflow segment 7 are made by earthenware;Wrap in the outside of rising head 2 Cover one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are four collection slag exhaust rods 12, be distributed on the outside of casting, and with The collection slag overflow piece 11 of lower edges is connected.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1190MPa。
Embodiment ten:
With speed per hour 350km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 260mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as cylinder, a diameter of 180mm is highly 200mm.The center of rising head 2 and interior pour 9 centers of mouth are placed in apart from casting geometric center as on 80mm same circumference.Molten metal is in the flow velocity of ingate 9 35cm/s;The rate of climb of the molten metal in casting 1 is 20mm/s.
Sprue cup 4, sprue 5, cross gate 6, cross gate overflow segment 7 and ingate 8 are made by earthenware;Outside rising head 2 Side coats one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are six collection slag exhaust rods 12, be distributed on the outside of casting, And be connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1255MPa。
Embodiment 11:
With speed per hour 250km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 260mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as cylinder, a diameter of 180mm is highly 200mm.The center of rising head 2 and interior pour 9 centers of mouth are placed in apart from casting geometric center as on 80mm same circumference.Molten metal is in the flow velocity of ingate 9 35cm/s;The rate of climb of the molten metal in casting 1 is 35mm/s.
Sprue cup 4, sprue 5, cross gate 6, cross gate overflow segment 7 and ingate 8 are made by earthenware;Outside rising head 2 Side coats one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are six collection slag exhaust rods 12, be distributed on the outside of casting, And be connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1355MPa。
Embodiment 12:
With speed per hour 350km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 260mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as cylinder, a diameter of 180mm is highly 200mm.The center of rising head 2 and interior pour 9 centers of mouth are placed in apart from casting geometric center as on 80mm same circumference.Molten metal is in the flow velocity of ingate 9 35cm/s;The rate of climb of the molten metal in casting 1 is 33mm/s.
Sprue cup 4, sprue 5, cross gate 6, cross gate overflow segment 7 and ingate 8 are made by earthenware;Outside rising head 2 Side coats one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are six collection slag exhaust rods 12, be distributed on the outside of casting, And be connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1295MPa。
Embodiment 13:
With speed per hour 250km/h bullet train cast steel brake disc wheel disc disk body(External diameter is 620mm, and internal diameter is 260mm,)For Example, its casting method and casting device and embodiment five are essentially identical.
The quantity of rising head 2 is eight, is shaped as cylinder, a diameter of 180mm is highly 200mm.The center of rising head 2 and interior pour 9 centers of mouth are placed in apart from casting geometric center as on 80mm same circumference.Molten metal is in the flow velocity of ingate 9 35cm/s;The rate of climb of the molten metal in casting 1 is 30mm/s.
Sprue cup 4, sprue 5, cross gate 6, cross gate overflow segment 7 and ingate 8 are made by earthenware;Outside rising head 2 Side coats one layer of fire resisting asbestos;Subsidy 3 is formed by heat insulating refractory material.There are six collection slag exhaust rods 12, be distributed on the outside of casting, And be connected with the collection slag overflow piece 11 of lower edges.
Non-Destructive Testing is carried out to casting, while meeting the inspection of I grades of I grades of radiographic inspection, I grades of ultrasonic inspection and magnetic powder inspection Test requirement.The yield strength σ of obtained brake disc disk body0.2=1405MPa。
It will be apparent to those skilled in the art that the casting method and device and thus obtained of the brake disc disk body of the present invention It is each shown by the content of the invention and embodiment part and accompanying drawing of the brake disc disk body including the invention described above specification Partial any combination, is described one by one as space is limited and for each scheme for making specification concise without these combinations are constituted. The device for being used to cast brake disc disk body of the present invention can have other changes, the shape and size and quantity of such as rising head, subsidy Shape and size, the shape for collecting slag overflow piece, quantity, position of rectification filter etc. of collection slag exhaust rod.In a word, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc. should be included in the protection of the present invention Within the scope of.

Claims (25)

1. a kind of casting method of brake disc disk body, it comprises the following steps according to sequencing:
(1) sunykatuib analysis is carried out to the casting technique and casting device of the brake disc disk body by Computer Simulation Software, really Determine the position of running gate system and system of risers;The system of risers includes rising head and subsidy;The rising head center of the system of risers Casting madial wall is placed in any position of casting geometric center;When rising head is one, rising head bottom one ingate of correspondence, When rising head is multiple, each rising head bottom corresponds to an ingate or subsection setup ingate, and ingate center is placed in Apart from the position of casting geometric center certain distance;
(2) according to the sunykatuib analysis result of step (1), the casting technique of the brake disc disk body is formulated, introducing gold is returned the bottom of using The mode of category liquid carries out bottom pour mold, and molten metal enters ingate by rectification filtering bottom of device, subsequently into the type of brake disc disk body Chamber;The ingate is placed in the lower section of rising head and the top of cross gate, and ingate is placed in the bottom of rising head, and is connected with casting; The rectification filter is placed between ingate and cross gate;Molten metal is 20-60cm/s, molten metal in the flow velocity of ingate The rate of climb in casting is 15-35mm/s;
(3) position of making casting device, its running gate system and system of risers meets the result of sunykatuib analysis in step (1);
(4) core is made;
(5) mould assembling;
(6) smelting and pouring;
(7) shake out knockout and clear up;
(8) roughing and heat treatment are carried out to casting;
(9) modifier treatment and finishing are carried out to casting.
2. the casting method of brake disc disk body as claimed in claim 1, it is characterised in that:The quantity of the rising head is one, And rising head center is placed in the position of casting geometric center.
3. the casting method of brake disc disk body as claimed in claim 1, it is characterised in that:The quantity of the rising head is one, And rising head center is placed in apart from the position that casting geometric center is 10-15mm.
4. the casting method of brake disc disk body as claimed in claim 1, it is characterised in that:The quantity of the rising head is at least two It is individual, and be evenly distributed on the same circumference centered on casting geometric center position.
5. the casting method of brake disc disk body as claimed in claim 1, it is characterised in that:The quantity of the rising head is at least two It is individual, and rising head center is placed in the position of casting madial wall.
6. the casting method of brake disc disk body as claimed in claim 1, it is characterised in that:The quantity of the rising head is at least two It is individual, and rising head center is placed in and is apart from casting geometric centerPosition, wherein R is casting madial wall to casting geometric center Distance.
7. the casting method of the brake disc disk body as any one of claim 4-6, it is characterised in that:The number of the rising head Measure as six or eight.
8. a kind of casting device of brake disc disk body, it includes running gate system and system of risers, and the running gate system includes cast gate Cup, sprue, cross gate, ingate and rectification filter, the system of risers include rising head and subsidy, it is characterised in that: The rising head center is placed in casting madial wall to any position of casting geometric center;The ingate be placed in rising head lower section and The top of cross gate, ingate is placed in the bottom of rising head, and is connected with casting;The rectification filter is placed in ingate and horizontal stroke Between running channel.
9. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The running gate system also includes horizontal pour Road overflow segment.
10. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The running gate system also includes collection Slag overflow piece and collection slag exhaust rod.
11. the casting device of brake disc disk body as claimed in claim 9, it is characterised in that:The sprue cup, sprue, horizontal stroke Running channel and cross gate overflow segment are sequentially connected, and the rising head is connected with subsidy, and the subsidy is connected with casting.
12. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The quantity of the rising head is one, And rising head center is placed in the position of casting geometric center.
13. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The quantity of the rising head is one, And rising head center is placed in apart from the position that casting geometric center is 10-15mm.
14. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The quantity of the rising head is at least Two, and be evenly distributed on the same circumference centered on casting geometric center position.
15. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The quantity of the rising head is at least Two, and rising head center is placed in the position of casting madial wall.
16. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The quantity of the rising head is at least Two, and rising head center is placed in and is apart from casting geometric centerPosition, wherein R be casting madial wall into casting geometry The distance of the heart.
17. the casting device of the brake disc disk body as any one of claim 14-16, it is characterised in that:The rising head Quantity be six or eight.
18. the casting device of brake disc disk body as claimed in claim 9, it is characterised in that:The sprue cup, sprue, horizontal stroke Running channel and cross gate overflow segment are made up of refractory material.
19. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The ingate is by refractory material It is made or is formed by sand mold.
20. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The rising head formed by sand mold or Cladding one layer of heat preservation refractory material on the outside of rising head.
21. the casting device of brake disc disk body as claimed in claim 8, it is characterised in that:The subsidy by metal material or Heat insulating refractory material is formed.
22. the casting device of brake disc disk body as claimed in claim 10, it is characterised in that:The collection slag overflow piece is placed in casting Lower edges on the outside of part.
23. the casting device of brake disc disk body as claimed in claim 10, it is characterised in that:The collection slag exhaust rod is placed in casting On the outside of part, and it is connected with the collection slag overflow piece of lower edges.
24. the casting device of brake disc disk body as claimed in claim 9, it is characterised in that:The rising head is shaped as cylinder Body, oval body or polyhedron.
25. a kind of brake disc disk body, it is characterised in that:Any casting method is made in claim 1-7.
CN201410416024.5A 2014-06-06 2014-08-22 The casting method and device of brake disc disk body and thus obtained brake disc disk body Active CN104128567B (en)

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