CN104985128A - Multi-overlaid-layer gating system and technology for casting - Google Patents
Multi-overlaid-layer gating system and technology for casting Download PDFInfo
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- CN104985128A CN104985128A CN201510432587.8A CN201510432587A CN104985128A CN 104985128 A CN104985128 A CN 104985128A CN 201510432587 A CN201510432587 A CN 201510432587A CN 104985128 A CN104985128 A CN 104985128A
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Abstract
The invention discloses a multi-overlaid-layer gating system and technology for casting. The multi-overlaid-layer gating system is characterized in that the multi-overlaid-layer gating system comprises multiple layers which are overlaid, riser channels and spures are arranged in the gating system, and in each layer of the gating system, the upper end and the lower end of the riser channel and the upper end and the lower end of the spure are provided with risers and pouring gates respectively; a riser cup and a pouring gate cup are fastened to the riser and the pouring gate on the top layer of the gating system respectively; the riser and the pouring gate of the upper end of the next layer of the gating system are tightly sleeved with the riser and the pouring gate of the lower end of each upper layer of the gating system respectively; the riser and the pouring gate of the bottom layer of the gating system are sealed, cross gates are arranged between the riser channels and the spures, inner pouring gates are arranged on one sides inside the riser channels, the cross gates are communicated with the inner pouring gates, and the inner pouring gates are communicated with a product sand mold cavity. By means of the multi-overlaid-layer gating system, a multi-layer product sand mold cavity is cast, casting production efficiency is improved, casting time is shortened, the molten iron content in multi-overlaid-layer casting is guaranteed, temperature balance is guaranteed, and casting product quality is guaranteed.
Description
Technical field
The present invention relates to casting technology field, relate in particular to a kind of casting multi-laminate and water running gate system and technique.
Background technology
Casting technique can be divided into gravitational casting, compression casting and sand casting.Sand mold generally adopts gravitational casting, has during particular/special requirement and also can adopt the technique such as low pressure casting, centrifugal casting.The adaptability of sand casting is very wide, and the mould of sand casting, has wooden model, except the sand-cast of single-piece production, dimensional accuracy can be used higher, and service life longer aluminum alloy mould or resin die.Although price increases, but still than the mould considerably cheaper of permanent mold casting, in small lot and large part are produced, price advantage is particularly outstanding.In addition, sand mold is higher than metal mold refractoriness, and thus as higher in the fusing point such as copper alloy and ferrous metal material also more adopts this technique.
Tradition sand casting, general each chiltern casting mold can only be poured into a mould once, and a cast product poured into a mould by sand mold, and after acquisition foundry goods, namely casting mold damages; Single casting pouring, when producing foundry goods in batches, floor space is comparatively large, and the production efficiency of sand casting is lower, and a foundry goods needs upper die and lower die, mould even, visible casting technique inefficiency, waste resource.
For this reason, need to improve sand casting process, people's research overlaps cast improving technique to casting die, to obtaining higher castings production efficiency, arrange that foundry goods is folded to be watered in pouring technology, molten iron is casting process from top to bottom, first carry out lower floor's molten iron cast, pour into a mould to upper strata successively, upper and lower stacked foundry goods molten iron composition and temperature inequality can be caused, shrink uneven, particularly during the large part foundry goods of folded cast, mobility large molten iron composition poured into a mould by molten iron and the uneven problem of temperature is more obvious, also exist because pressure differential produces pore shrinkage cavity, produce slag inclusion, the mass defects such as cold shut, have a strong impact on casting quality, casting dimension accuracy is seriously forbidden, affect casting yield, still inevitably use bed die, cover mold etc., waste resource, technique is loaded down with trivial details simultaneously.
Summary of the invention
The object of the invention is to overcome prior art Problems existing, a kind of casting multi-laminate is provided to water running gate system and technique, by folded cast runner system and ingate is set and directly water, cross gate, shorten the note time, ensure that multi-laminate waters molten iron composition and temperature equalization, reduce the mass defect such as slag inclusion, cold shut, improve cast product quality, improve castings production efficiency.
The technical solution used in the present invention: a kind of casting multi-laminate waters running gate system, running gate system is multilayer and difference is stacked, be respectively equipped with in running gate system and emit stomatodeum and sprue, every layer of running gate system, emit stomatodeum and sprue upper end, lower end is respectively equipped with rising head and cast gate, running gate system top layer rising head, cast gate is fastened with respectively and emits cup, cup, the rising head of every layer of running gate system lower end, cast gate is closely nested with the rising head in lower one deck running gate system upper end respectively, on cast gate, running gate system bottom rising head, cast gate seals respectively, described emitting between stomatodeum and sprue is provided with cross gate, side in stomatodeum is emitted to be provided with ingate, cross gate leads to ingate, ingate is communicated with product sand mo(u)ld die cavity.
Rising head, the cast gate of described running gate system end are respectively equipped with bayonet socket, emit cup, cup to be closely nested with in bayonet socket respectively, and running gate system lower end rising head, cast gate are closely nested with respectively in the bayonet socket of lower one deck running gate system upper end rising head, cast gate; Filtering net plate is provided with in described cup.
A kind of casting multi-laminate waters pouring technology, comprises the following steps:
1) running gate system is made.Make metal feed system mould according to foundry goods sand mo(u)ld size, metal feed system mould includes and emits stomatodeum, sprue, cross gate, ingate, emits rising head, cast gate on stomatodeum, sprue to be respectively equipped with bayonet socket;
2) foldedly running gate system is watered.Determine the folded cast number of plies, multi-laminate is watered running gate system stacked, every layer of running gate system emit the rising head of stomatodeum and sprue and cast gate levels to be nested with and fastening, fasteningly respectively on top layer rising head, cast gate emit cup, 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 also stacked up and down;
4) foldedly frock is watered.Stacked multilayer sand mo(u)ld bottom sand mo(u)ld is placed on base plate on request, placed and be fastened in sandbox by stacked multi-layered product running gate system sand mould, the ingate in every layer of running gate system on cross gate is communicated with product sand mo(u)ld die cavity;
5) folded cast.Iron liquid enters running gate system sprue from cup, and inject whole sprue rapidly, in sprue, iron liquid is diverted to the cross gate of every layer of running gate system through filter residue simultaneously, in cross gate, molten iron flows into respectively and emits stomatodeum, directly flow to ingate again, the iron liquid passing into ingate flows into product sand mo(u)ld die cavity reposefully, and iron liquid produces to produce every layer of product sand mo(u)ld die cavity cooling and shrinks, emit stomatodeum to be vented and storage iron liquid also can feeding iron liquid, complete the cast of foundry goods multi-laminate.
Beneficial effect of the present invention is:
1, multi-laminate of the present invention is watered pouring technology and is improved traditional bed die, cover mold, middle mould cast in one piece technique, adopt multi-laminate to water the product casting sand mo(u)ld of running gate system to multiple superposed and carry out multilayer cast, once-cast stacked multilayer sand mo(u)ld product, improve the efficiency of cast casting, single-piece multi-laminate is watered running gate system and is particularly suitable for casting large part product, utilizes multi-laminate to water running gate system and shortens the duration of pouring, improve molten iron and utilize, save material and the energy, reduce production cost simultaneously.
2, multi-laminate of the present invention water pouring technology adopt sprue carry out iron liquid casting as main pipeline, every layer of running gate system is adopted to have the cross gate of shunting running channel, the scum floating on sprue top in molten iron effectively filters by cross gate, and molten iron is diverted in time every layer of sand mold die cavity, the runner system adopted is beneficial to exhaust in stacked casting process and storage iron liquid, improve pour into a mould the pressure of iron liquid, with the contraction in enhanced products cooling procedure, play feeding effect, prevent the casting flaw of product, thus improve the quality of products.
Molten iron is flowed to sand mo(u)ld by the ingate that 3, the present invention is arranged by running gate system every layer, improve the technique that stacked product sand mo(u)ld directly poured into a mould by existing molten iron, not only can control the flow direction and the flow velocity of iron liquid preferably, ingate is to ensure that iron liquid flows into die cavity stably and effectively prevents iron liquid washing away die cavity, do not produce burning into sand and cold shut, the casting flaws such as pore shrinkage cavity, effectively improve the quality of products.
4, multi-laminate of the present invention waters the rising head of running gate system upper end, cast gate is respectively equipped with bayonet socket, cup, cup is emitted closely to be nested with in bayonet socket respectively, bayonet socket on every layer of gating through riser, cast gate is closely fixedly connected with, cup is provided with screen pack, molten iron enters in cup and carries out filtration cast, can effectively remove the impurity existed in molten iron, avoid the pore produced because of impurity in casting process, improve casting quality.
Accompanying drawing explanation
Fig. 1 is the present invention's one casting multi-laminate cast structural representation.
Fig. 2 is that a kind of multi-laminate of the present invention waters running gate system schematic diagram.
Fig. 3 is that a kind of multi-laminate of the present invention waters running gate system top view.
Running gate system 1, emit stomatodeum 2, sprue 3, cross gate 4, rising head 5, cast gate 6, emit cup 7, cup 8, ingate 9, product sand mo(u)ld die cavity 10, bayonet socket 11, product sand mo(u)ld 12, filtering net plate 13.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, 2, 3, a kind of casting multi-laminate waters running gate system, 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, running gate system is multilayer and stacked, by producing stacked number of plies requirement needed for product, determine running gate system and product institute matching technique, by stacked and fastening for multilayer running gate system suit.
It is cast die cavity in running gate system 1, be respectively equipped with in running gate system 1 and emit stomatodeum 2, sprue 3, every layer of running gate system 1, emit between stomatodeum 2 and sprue 3 and be provided with cross gate 4, formed in whole running gate system 1 and emit stomatodeum 2, sprue 3, and be communicated with by every layer of cross gate 4.
Every layer of running gate system 1, emit stomatodeum 2 and sprue 3 upper end, lower end to be respectively equipped with rising head 5 and cast gate 6, running gate system 1 top layer rising head 5, cast gate 6 are fastened with respectively and emit cup 7, cup 8, running gate system 1 bottom rising head 5, cast gate 6 seal respectively.
Running gate system 1 emits stomatodeum 2 and sprue 3 upper end, the rising head 5 of lower end, cast gate 6 to be set with fasteningly to form multilayer running gate system 1 by every layer of running gate system 1, namely the rising head 5 of every layer of running gate system 1 lower end, cast gate 6 are nested with respectively on the rising head 5, cast gate 6 of lower one deck running gate system 1 upper end, and the rising head 5 of running gate system 1 upper end, cast gate 6 are respectively equipped with bayonet socket 11, emit cup 7, cup 8 to be closely nested with respectively in the bayonet socket 11 on the rising head 5, cast gate 6 of top layer running gate system 1, every layer of running gate system 1 is closely fixedly connected with by the bayonet socket 11 on rising head 5, cast gate 6; Filtering net plate 13 is provided with in cup 8.
Every layer is emitted stomatodeum 2 side to be provided with ingate 9, and cross gate 4 leads to ingate 9, and ingate 9 is communicated with product sand mo(u)ld die cavity 10.
A kind of casting multi-laminate waters pouring technology, comprises the following steps:
Make running gate system.Make metal feed system mould according to foundry goods sand mo(u)ld size, metal feed system mould includes and emits stomatodeum, sprue, cross gate, ingate, emits stomatodeum, and sprue, rising head cast gate are respectively equipped with bayonet socket.
Fold and water running gate system.Determine the folded cast number of plies, multi-laminate is watered running gate system stacked, every layer of running gate system emit the rising head of stomatodeum and sprue and cast gate levels to be nested with and fastening, fasteningly respectively on top layer rising head, cast gate emit cup, 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; To manufacture a product sand mo(u)ld with coated sand core shooting machine, every a product only needs one pair of mould, paves as base plate with steel plate, is placed on base plate by product sand mo(u)ld, is stacked in by product sand mo(u)ld on bottom sand mo(u)ld, and the sand mo(u)ld die cavity of every layer of product sand mo(u)ld is communicated with ingate.
Fold and water frock.Stacked multilayer sand mo(u)ld being placed on base plate by bottom sand mo(u)ld on request, stacked multi-layered product sand mo(u)ld, metal feed system mould are placed and are fastened in sandbox, the ingate in every layer of running gate system on cross gate is communicated with product sand mo(u)ld die cavity.
Folded cast.Iron liquid is entered running gate system 1 die cavity sprue 3 by cup 8, and inject whole sprue rapidly, in sprue, iron liquid is diverted to the cross gate of every layer of running gate system through filter residue simultaneously, scum floats gradually in sprue, in every layer of cross gate, molten iron flows into respectively and emits stomatodeum, directly flow to ingate again, the iron liquid passing into ingate flows into product sand mo(u)ld die cavity reposefully, iron liquid produces to produce every layer of product sand mo(u)ld die cavity cooling and shrinks, to be vented by emitting stomatodeum and storage iron liquid also can feeding iron liquid, to complete the cast of foundry goods multi-laminate.
Claims (4)
1. a casting multi-laminate waters running gate system, it is characterized in that: running gate system (1) is for multilayer and difference is stacked, be respectively equipped with in running gate system (1) and emit stomatodeum (2) and sprue (3), every layer of running gate system (1), emit stomatodeum (2) and 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) is fastened with respectively and emits cup (7), cup (8), the rising head (5) of every layer of running gate system (1) lower end, cast gate (6) is closely nested with the rising head (5) in lower one deck running gate system (1) upper end respectively, on cast gate (6), running gate system (1) bottom rising head (5), cast gate (6) seals respectively, described emitting between stomatodeum (2) and sprue (3) is provided with cross gate (4), stomatodeum (2) interior side is emitted to be provided with ingate (9), cross gate (4) leads to ingate (9), ingate (9) is communicated with product sand mo(u)ld die cavity (10).
2. one casting multi-laminate according to claim 1 waters running gate system, it is characterized in that: rising head (5), the cast gate (6) of described running gate system (1) upper end are respectively equipped with bayonet socket (11), emit cup (7), cup (8) is closely nested with respectively in bayonet socket (11), running gate system (1) lower end rising head (5), cast gate (6) are closely nested with respectively in the bayonet socket (11) of lower one deck running gate system (1) upper end rising head (5), cast gate (6).
3. one casting multi-laminate according to claim 1 waters running gate system, it is characterized in that: be provided with filtering net plate (13) in described cup (8).
4.1) running gate system is made: make metal feed system mould according to foundry goods sand mo(u)ld size, metal feed system mould includes and emits stomatodeum, sprue, cross gate, ingate, emits rising head, cast gate on stomatodeum, sprue to be respectively equipped with bayonet socket;
2) foldedly running gate system is watered: determine the folded cast number of plies, multi-laminate is watered running gate system stacked, every layer of running gate system emit the rising head of stomatodeum and sprue and cast gate levels to be nested with and fastening, fasteningly respectively on top layer rising head, cast gate emit cup, 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 also stacked up and down;
4) foldedly water frock: stacked multilayer sand mo(u)ld being placed on base plate by bottom sand mo(u)ld on request, placed and be fastened in sandbox by stacked multi-layered product running gate system sand mould, the ingate in every layer of running gate system on cross gate is communicated with product sand mo(u)ld die cavity;
5) folded cast: iron liquid enters running gate system sprue from cup, and inject whole sprue rapidly, in sprue, iron liquid is diverted to the cross gate of every layer of running gate system through filter residue simultaneously, in cross gate, molten iron flows into respectively and emits stomatodeum, directly flow to ingate again, the iron liquid passing into ingate flows into product sand mo(u)ld die cavity reposefully, and iron liquid produces to produce every layer of product sand mo(u)ld die cavity cooling and shrinks, emit stomatodeum to be vented and storage iron liquid also can feeding iron liquid, complete the cast of foundry goods multi-laminate.
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| CN201510432587.8A CN104985128B (en) | 2015-07-22 | 2015-07-22 | One kind casting multi-laminate pours running gate system and technique |
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| CN201510432587.8A CN104985128B (en) | 2015-07-22 | 2015-07-22 | One kind casting multi-laminate pours running gate system and technique |
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| CN105750502A (en) * | 2016-04-20 | 2016-07-13 | 浙江省机电设计研究院有限公司 | Pouring system device and pouring method for iron based sand coated cast brake drums |
| CN106077491A (en) * | 2016-08-09 | 2016-11-09 | 长沙金龙铸造实业有限公司 | A kind of casting moulding system and production method |
| CN107096912A (en) * | 2017-06-30 | 2017-08-29 | 大连金河铸造有限公司 | Cast Measuring glass and its application method |
| CN107552733A (en) * | 2017-10-25 | 2018-01-09 | 天津市莱斯特阀门有限公司 | The valve body stack mould group of flange butterfly |
| CN108202130A (en) * | 2016-12-20 | 2018-06-26 | 四川都江铸造有限责任公司 | A kind of stack casting process of automobile clutch pressure plate |
| CN108326235A (en) * | 2018-03-13 | 2018-07-27 | 福建省福安市力德泵业有限公司 | A kind of multilayer casting mold |
| CN108941463A (en) * | 2018-10-08 | 2018-12-07 | 西安合力汽车配件有限公司 | A kind of the pouring in vertically clamped moulds device and pouring in vertically clamped moulds technique of precoated sand product |
| CN110076293A (en) * | 2019-04-25 | 2019-08-02 | 河南广瑞汽车部件股份有限公司 | A kind of control steering gear housing generates the running gate system and its process of shrinkage porosite and sand washing |
| CN110142378A (en) * | 2019-05-23 | 2019-08-20 | 大连德原工业有限公司 | A kind of brake disc shell mould lamination casting method and casting mould |
| CN114012041A (en) * | 2021-10-11 | 2022-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
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| CN108941463A (en) * | 2018-10-08 | 2018-12-07 | 西安合力汽车配件有限公司 | A kind of the pouring in vertically clamped moulds device and pouring in vertically clamped moulds technique of precoated sand product |
| CN110076293A (en) * | 2019-04-25 | 2019-08-02 | 河南广瑞汽车部件股份有限公司 | A kind of control steering gear housing generates the running gate system and its process of shrinkage porosite and sand washing |
| CN110076293B (en) * | 2019-04-25 | 2024-02-27 | 河南广瑞汽车部件股份有限公司 | Pouring system for controlling steering gear shell to generate shrinkage porosity and sand washing and process method thereof |
| CN110142378A (en) * | 2019-05-23 | 2019-08-20 | 大连德原工业有限公司 | A kind of brake disc shell mould lamination casting method and casting mould |
| CN114012041A (en) * | 2021-10-11 | 2022-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
| CN114210930A (en) * | 2021-12-22 | 2022-03-22 | 十堰市泰祥实业股份有限公司 | Casting method and casting die for frame type engine main bearing cap |
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