CN104985128B - One kind casting multi-laminate pours running gate system and technique - Google Patents

One kind casting multi-laminate pours running gate system and technique Download PDF

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Publication number
CN104985128B
CN104985128B CN201510432587.8A CN201510432587A CN104985128B CN 104985128 B CN104985128 B CN 104985128B CN 201510432587 A CN201510432587 A CN 201510432587A CN 104985128 B CN104985128 B CN 104985128B
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rising head
cast
running gate
gate system
sprue
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CN201510432587.8A
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CN104985128A (en
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杨友忠
程增安
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HUBEI YAGANG METAL MANUFACTURE Co Ltd
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HUBEI YAGANG METAL MANUFACTURE Co Ltd
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Abstract

The invention discloses one kind casting multi-laminate to pour running gate system and technique, it is characterised in that:Running gate system is multilayer and is stacked respectively, rising head road and sprue are respectively equipped with running gate system, every layer of running gate system, rising head road and sprue upper end, lower end is respectively equipped with rising head and cast gate, running gate system top layer rising head, it is fastened with respectively on cast gate and emits cup, sprue cup, the rising head of every layer of running gate system lower end, cast gate is closely nested with the rising head next layer of running gate system upper end respectively, on cast gate, running gate system bottom rising head, cast gate seals respectively, cross gate is provided between the rising head road and sprue, side is provided with ingate in rising head road, cross gate leads to ingate, ingate connects with product sand mo(u)ld die cavity.The present invention pours into a mould multi-layered product sand mo(u)ld die cavity by setting multi-laminate to pour running gate system, improves castings production efficiency, shortens the note time, ensures that multi-laminate pours molten iron composition and temperature equalization, ensures cast product quality.

Description

One kind casting multi-laminate pours running gate system and technique
Technical field
The present invention relates to casting technology field, relates in particular to a kind of casting multi-laminate and pours running gate system and technique.
Background technology
Casting technique can be divided into gravitational casting, compression casting and sand casting.Sand mold typically uses gravitational casting, and there have to be special It is required that when can also use the technique such as low pressure casting, centrifugal casting.The adaptability of sand casting is very wide, the mould of sand casting, There is wooden model, in addition to the sand-cast of single-piece production, dimensional accuracy can be used higher, and the aluminium alloy mould that service life is longer Tool or resin die.Although price increases, but still than the mould considerably cheaper of permanent mold casting, in small lot and big part In production, price advantage is especially prominent.In addition, sand mold is higher than metal mold refractoriness, thus such as copper alloy and ferrous metal The higher material of fusing point also more uses this technique.
Traditional sand casting, general each chiltern casting mold can only be poured into a mould once, and sand mold pours into a mould a cast product, Casting mold damages after obtaining casting;Single casting pouring, when producing casting in batches, floor space is larger, the life of sand casting Produce less efficient, and a casting needs upper die and lower die, or even middle mould, it is seen that casting technique efficiency is low, waste of resource.
For this reason, it may be necessary to be improved to sand casting process, people's research carries out overlapping cast to casting die to be changed Enter technique, to obtain higher castings production efficiency, set casting is folded to pour in pouring technology, molten iron is cast from top to bottom Process, first carry out lower floor molten iron casting, poured into a mould successively to upper strata, can cause stacked casting molten iron composition up and down and temperature it is uneven, Shrink uneven, when particularly folding the big part casting of cast, the big molten iron composition of molten iron casting mobility and temperature inequality problem are more Substantially, also exist because pressure differential produces the mass defects such as stomata shrinkage cavity, generation slag inclusion, cold shut, have a strong impact on casting quality, make casting Part dimensional accuracy is seriously forbidden, and influences casting yield;While bed die, cover mold etc. are still inevitably used, waste of resource, Technique is cumbersome.
The content of the invention
The problem of the invention aims to overcome prior art to exist, there is provided one kind casting multi-laminate pours running gate system And technique, by setting folded cast runner system and ingate and directly pouring, cross gate, shorten the note time, ensure that multi-laminate is poured Molten iron composition and temperature equalization, the mass defects such as slag inclusion, cold shut are reduced, improve cast product quality, improve castings production efficiency.
The technical solution adopted by the present invention:One kind casting multi-laminate pours running gate system, and running gate system is multilayer and folded respectively Put, rising head road and sprue, every layer of running gate system are respectively equipped with running gate system, rising head road is distinguished with sprue upper end, lower end Provided with rising head and cast gate, it is fastened with respectively on running gate system top layer rising head, cast gate and emits cup, sprue cup, under every layer of running gate system Rising head, the cast gate at end are closely nested with the rising head, cast gate of next layer of running gate system upper end respectively, running gate system bottom rising head, Cast gate seals respectively, is provided with cross gate between the rising head road and sprue, side is provided with ingate, cross gate in rising head road Lead to ingate, ingate connects with product sand mo(u)ld die cavity.
Rising head, the cast gate at the running gate system end are respectively equipped with bayonet socket, emit cup, sprue cup and are closely nested with bayonet socket respectively It is interior, running gate system lower end rising head, cast gate be closely nested with respectively next layer of running gate system upper end rising head, cast gate bayonet socket in;Institute State and filtering net plate is provided with sprue cup.
One kind casting multi-laminate pours pouring technology, comprises the following steps:
1)Make running gate system.Metal feed system mould, metal feed system mould are made according to casting sand mo(u)ld size Include rising head road, sprue, cross gate, ingate, rising head, cast gate are respectively equipped with bayonet socket on rising head road, sprue;
2)It is folded to pour running gate system.It is determined that the folded cast number of plies, pours running gate system by multi-laminate and is stacked, every layer of running gate system The rising head and cast gate levels of rising head road and sprue are nested with and fastened, and fastening emits cup, cast gate respectively on top layer rising head, cast gate Cup, running gate system bottom rising head, cast gate seal respectively;
3)Molding and stacked sand mo(u)ld.Require to make sand mo(u)ld according to casting dimension and number and be stacked up and down;
4)It is folded to pour frock.Multilayer sand mo(u)ld is stacked on request and places bottom sand mo(u)ld on bottom plate, and stacked multi-layered product is poured Injection system sand mould is placed and is fastened in sandbox, and the ingate in every layer of running gate system on cross gate connects with product sand mo(u)ld die cavity It is logical;
5)Folded cast.Iron liquid enters running gate system sprue from sprue cup, and injects whole sprue rapidly, while directly Iron liquid is diverted to the cross gate of every layer of running gate system through filter residue in running channel, and molten iron separately flows into rising head road in cross gate, then directly Ingate is flowed to, the iron liquid for being passed through ingate is smoothly introduced into product sand mo(u)ld die cavity, and iron liquid cools down in every layer of product sand mo(u)ld die cavity Production produces contraction, the exhaust of rising head road and storage iron liquid and can complete the cast of casting multi-laminate with feeding iron liquid.
The beneficial effects of the present invention are:
1st, multi-laminate of the present invention pours pouring technology and improves traditional bed die, cover mold, middle mould cast in one piece technique, using multilayer Folded running gate system of pouring carries out multilayer cast to the product casting sand mo(u)ld of multiple superposed, and once-cast is stacked multilayer sand mo(u)ld product, carried The efficiency of high cast casting, single-piece multi-laminate pour running gate system and are particularly suitable for casting big part product, and system is poured into a mould using multi-laminate System shortens the duration of pouring, improves molten iron and utilizes, saves material and the energy, while reduce production cost.
2nd, multi-laminate of the present invention pours pouring technology and carries out iron liquid casting as main pipeline using sprue, using every layer of cast System has the cross gate of shunting running channel, and cross gate is effectively filtered the scum that sprue top is floated in molten iron, and will Molten iron is diverted to every layer of sand mold die cavity in time, and the runner system of use is beneficial to the exhaust being stacked in casting process and storage iron liquid, The pressure for pouring into a mould iron liquid is improved, with the contraction in enhanced products cooling procedure, feeding effect is played, prevents the casting of product to lack Fall into, so as to improve product quality.
3rd, molten iron is flowed to sand mo(u)ld by the present invention by the ingate of every layer of setting of running gate system, and it is direct to improve existing molten iron The technique of the stacked product sand mo(u)ld of cast, the flow direction and flow velocity of iron liquid not only can be preferably controlled, ingate is to ensure that iron liquid is put down Steady inflow die cavity effectively prevents iron liquid from being washed away to die cavity, does not produce the casting flaw such as burning into sand and cold shut, stomata shrinkage cavity, effectively Improve product quality.
4th, multi-laminate of the present invention pours the rising head of running gate system upper end, cast gate is respectively equipped with bayonet socket, emits cup, sprue cup difference Closely it is nested with bayonet socket, every layer of gating through riser, the bayonet socket on cast gate is tightly fastened connection, sprue cup is provided with Screen pack, molten iron enter cup in carries out filtering cast, can effectively remove impurity present in molten iron, avoid in casting process because Impurity and caused stomata, improve casting quality.
Brief description of the drawings
Fig. 1 is that a kind of casting multi-laminate of the invention pours integrated cast structure schematic diagram.
Fig. 2 is that a kind of multi-laminate of the present invention pours running gate system schematic diagram.
Fig. 3 is that a kind of multi-laminate of the present invention pours running gate system top view.
Running gate system 1, rising head road 2, sprue 3, cross gate 4, rising head 5, cast gate 6, emit cup 7, sprue cup 8, ingate 9th, product sand mo(u)ld die cavity 10, bayonet socket 11, product sand mo(u)ld 12, filtering net plate 13.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, 3, a kind of casting multi-laminate pours running gate system, and running gate system is cast with metal material and is processed into Mould, product mold and running gate system mould use mechanically actuated, form product running gate system die cavity, sand mo(u)ld die cavity, cast system Unite as multilayer and be stacked, be stacked number of plies requirement by needed for production product, running gate system and product institute matching technique determined, by multilayer Running gate system suit is stacked and fastens.
It is cast die cavity in running gate system 1, rising head road 2, sprue 3, every layer of running gate system is respectively equipped with running gate system 1 1, cross gate 4 is provided between rising head road 2 and sprue 3, rising head road 2, sprue 3 are formed in whole running gate system 1, and by every layer Cross gate 4 connects.
Every layer of running gate system 1, rising head road 2 are respectively equipped with rising head 5 and cast gate 6, running gate system 1 with the upper end of sprue 3, lower end It is fastened with respectively on top layer rising head 5, cast gate 6 and emits cup 7, sprue cup 8, the bottom rising head 5 of running gate system 1, cast gate 6 seals respectively.
Running gate system 1 is the rising head road 2 and the upper end of sprue 3, the rising head 5 of lower end, cast gate 6 by every layer of running gate system 1 Suit fastening forms multilayer running gate system 1, i.e., rising head 5, the cast gate 6 of the every layer lower end of running gate system 1 are nested with respectively to be poured in next layer On the rising head 5 of the upper end of injection system 1, cast gate 6, and the rising head 5 of the upper end of running gate system 1, cast gate 6 are respectively equipped with bayonet socket 11, rising head Cup 7, sprue cup 8 are closely nested with the bayonet socket 11 on the rising head 5, cast gate 6 of top layer running gate system 1 respectively, every layer of running gate system 1 Connection is tightly fastened by the bayonet socket 11 on rising head 5, cast gate 6;Filtering net plate 13 is provided with sprue cup 8.
Every layer of rising head road 2 side is provided with ingate 9, and cross gate 4 leads to ingate 9, ingate 9 and product sand mo(u)ld die cavity 10 connections.
One kind casting multi-laminate pours pouring technology, comprises the following steps:
Make running gate system.Metal feed system mould, metal feed system mould bag are made according to casting sand mo(u)ld size Rising head road, sprue, cross gate, ingate, rising head road are included, sprue, rising head cast gate are respectively equipped with bayonet socket.
It is folded to pour running gate system.It is determined that the folded cast number of plies, pours running gate system by multi-laminate and be stacked, every layer of running gate system emits The rising head and cast gate levels of mouth road and sprue are nested with and fastened, and fastening emits cup, cast gate respectively on top layer rising head, cast gate Cup, running gate system bottom rising head, cast gate seal respectively.
Molding and stacked sand mo(u)ld.Require to make sand mo(u)ld according to casting dimension and number;Product is manufactured with coated sand core shooting machine Sand mo(u)ld, one pair of mould is only needed per a product, is paved by the use of steel plate as bottom plate, product sand mo(u)ld is placed on, by product Sand mo(u)ld is stacked on bottom sand mo(u)ld, and the sand mo(u)ld die cavity of every layer of product sand mo(u)ld connects with ingate.
It is folded to pour frock.On request be stacked multilayer sand mo(u)ld and by bottom sand mo(u)ld place bottom plate on, by stacked multi-layered product sand mo(u)ld, Metal feed system mould is placed and is fastened in sandbox, the ingate in every layer of running gate system on cross gate and product sand mo(u)ld type Chamber connects.
Folded cast.Iron liquid is entered into the die cavity sprue 3 of running gate system 1 by sprue cup 8, and injection is entirely directly poured rapidly Road, while iron liquid is diverted to the cross gate of every layer of running gate system through filter residue in sprue, scum gradually floats in sprue, often Molten iron separately flows into rising head road in layer cross gate, then flows directly into ingate, and the iron liquid for being passed through ingate is smoothly introduced into product Sand mo(u)ld die cavity, iron liquid produce contraction in the cooling production of every layer of product sand mo(u)ld die cavity, are vented and store iron liquid by rising head road and can be with Feeding iron liquid, complete the cast of casting multi-laminate.

Claims (4)

1. one kind casting multi-laminate pours running gate system, it is characterised in that:Running gate system(1)It is stacked for multilayer and respectively, cast system System(1)Inside it is respectively equipped with rising head road(2)With sprue(3), every layer of running gate system(1), rising head road(2)With sprue(3)Upper end, Lower end is respectively equipped with rising head(5)And cast gate(6), running gate system(1)Top layer rising head(5), cast gate(6)Upper be fastened with respectively emits cup (7), sprue cup(8), every layer of running gate system(1)The rising head of lower end(5), cast gate(6)Closely it is nested with respectively in next layer of cast system System(1)The rising head of upper end(5), cast gate(6)On, running gate system(1)Bottom rising head(5), cast gate(6)Seal respectively, the rising head Road(2)With sprue(3)Between be provided with cross gate(4), rising head road(2)Interior side is provided with ingate(9), cross gate(4)It is logical To ingate(9), ingate(9)With product sand mo(u)ld die cavity(10)Connection.
2. a kind of casting multi-laminate according to claim 1 pours running gate system, it is characterised in that:The running gate system(1) The rising head of upper end(5), cast gate(6)It is respectively equipped with bayonet socket(11), emit cup(7), sprue cup(8)Closely it is nested with bayonet socket respectively (11)It is interior, running gate system(1)Lower end rising head(5), cast gate(6)Closely it is nested with respectively in next layer of running gate system(1)Upper end rising head (5), cast gate(6)Bayonet socket(11)It is interior.
3. a kind of casting multi-laminate according to claim 1 pours running gate system, it is characterised in that:The sprue cup(8)It is interior It is provided with filtering net plate(13).
4. a kind of pouring technology for casting multi-laminate and pouring running gate system according to claim 1, comprises the following steps:
1)Make running gate system:Metal feed system mould is made according to casting sand mo(u)ld size, metal feed system mould includes There are rising head road, sprue, cross gate, an ingate, rising head, cast gate are respectively equipped with bayonet socket on rising head road, sprue;
2)It is folded to pour running gate system:It is determined that the folded cast number of plies, pours running gate system by multi-laminate and is stacked, the rising head of every layer of running gate system The rising head and cast gate levels of road and sprue are nested with and fastened, and fastening emits cup, sprue cup respectively on top layer rising head, cast gate, Running gate system bottom rising head, cast gate seal respectively;
3)Molding and stacked sand mo(u)ld:Require to make sand mo(u)ld according to casting dimension and number and be stacked up and down;
4)It is folded to pour frock:Multilayer sand mo(u)ld is stacked on request and places bottom sand mo(u)ld on bottom plate, and stacked multi-layered product is poured into a mould into system System mould is placed and is fastened in sandbox, and the ingate in every layer of running gate system on cross gate connects with product sand mo(u)ld die cavity;
5)Folded cast:Iron liquid enters running gate system sprue from sprue cup, and injects whole sprue rapidly, while sprue Interior iron liquid is diverted to the cross gate of every layer of running gate system through filter residue, and molten iron separately flows into rising head road in cross gate, then flows directly into Ingate, the iron liquid for being passed through ingate are smoothly introduced into product sand mo(u)ld die cavity, and iron liquid produces in every layer of product sand mo(u)ld die cavity cooling Shrink, rising head road is vented and stored iron liquid and can complete the cast of casting multi-laminate with feeding iron liquid.
CN201510432587.8A 2015-07-22 2015-07-22 One kind casting multi-laminate pours running gate system and technique Expired - Fee Related CN104985128B (en)

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