CN103464687A - Pouring system as well as novel casting method of glass mold - Google Patents
Pouring system as well as novel casting method of glass mold Download PDFInfo
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- CN103464687A CN103464687A CN2013104185888A CN201310418588A CN103464687A CN 103464687 A CN103464687 A CN 103464687A CN 2013104185888 A CN2013104185888 A CN 2013104185888A CN 201310418588 A CN201310418588 A CN 201310418588A CN 103464687 A CN103464687 A CN 103464687A
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Abstract
The invention discloses a pouring system as well as a novel casting method of a glass mold. A pouring gate of the pouring system is of a spiral line type, and one end of the pouring gate is provided with a pouring opening, and the other end of the pouring gate is connected with a sprue; the pouring gate is positioned above the sprue; the crossed part of the pouring gate and the sprue is provided with a feeder head; an air outlet is arranged above the feeder head; inner pouring gates and the sprue are communicated, and the sprue is higher than the inner pouring gates. When the pouring gate system is adopted for casting, liquid iron enters the spiral-line-type pouring gate, and ascends spirally along the feeder head under the inertia effect, at the same time, impurities float upward in pouring, and a primary deslagging effect is played; the sprue is higher than the inner pouring gates, the liquid level of liquid iron in the sprue is higher than the liquid level of liquid iron in the inner pouring gates, so that impurities float upward again, and float on the upper part of the liquid iron, and the impurities at the upper part cannot flow into the inner pouring gates, and a secondary deslagging effect is played. According to the pouring system, impurities in the liquid iron are removed effectively through secondary deslagging, and the finished product rate of casting elements is ensured.
Description
Technical field
The present invention relates to a kind of running gate system, belong to casting technology field.The invention still further relates to the novel casting method of the glass mold that utilizes above-mentioned running gate system.
Background technology
In Foundry Production, no matter be steel-casting, ironcasting, aluminum casting or other alloy-steel casting, be easy to for various reasons produce the quality problems such as slag blister, sand holes, core, therefore remove non-metallic inclusion in metal bath, to improving casting yield, improve casting quality, there is great technological value and economic worth.
At present, in casting technique, extensively adopt the casting screen pack to remove foreign material.Screen pack can be removed bubble in metal bath, press from both sides the objectionable impurities such as grey oxide and various field trashes, thereby eliminates core, slag blister, the sand holes of foundry goods, greatly improves the yield rate of foundry goods, improves inherent quality and the presentation quality of foundry goods.But it is limited only relying on screen pack to remove impurity, can not fundamentally eliminate core, slag blister, the sand holes of foundry goods, affects the yield rate of foundry goods.
Summary of the invention
A kind of novel casting method that technical problem to be solved by this invention is to provide running gate system and utilizes the glass mold of above-mentioned running gate system.This running gate system can effectively be removed the impurity in pouring molten iron.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of running gate system, comprise the cast gate, running channel, sprue and the ingate that are formed by molding sand, and described running channel is spiral yarn shaped, and the one end is provided with cast gate, and the other end is connected with sprue; Described running channel is positioned at the sprue top, in the intersection of running channel and sprue, is provided with rising head, and the rising head top is provided with venthole; Described ingate and sprue connect, and sprue exceeds ingate.
Described sprue exceeds ingate 10-25mm.
Be provided with screen pack between described rising head bottom and sprue.
Described ingate has a plurality of, and it all connects with sprue.An ingate generally respectively is set respectively on the sprue both sides.
Molten iron pours into from cast gate, enters spiral yarn shaped running channel, and when molten iron flow to the rising head place in spiral yarn shaped running channel, under the effect of inertia, along the rising head spiral, the venthole that the rising head top arranges can guarantee that molten iron is smooth and easy mobile.Now impurity can float when cast, after the screen pack that the molten iron of bottom arranges through the rising head bottom filters, enters sprue.Impurity in the floating state can not flow to sprue, even have the impurity of floating to flow to sprue with molten iron or do not have the impurity of floating to flow to sprue with molten iron, the screen pack that the rising head bottom arranges can filter it, plays the effect that removes the gred first.
Sprue exceeds ingate, connecting with ingate of sprue bottom, the speed that flows to sprue due to molten iron is greater than the speed that molten iron in sprue flows to ingate, therefore, in sprue, the liquid level of molten iron will be higher than the liquid level of molten iron in ingate, impurity will float again like this, and molten iron flows in ingate along the sprue bottom.Equally, impurity floats over molten iron top, and the molten iron of sprue inner bottom part flows to ingate, thereby the impurity on top can not flow to ingate, plays secondary slagging-off effect.The molten iron that enters ingate finally enters in die cavity.
A kind of novel casting method of glass mold comprises the following steps:
(1) produce the wooden mold base plate by the glass die blank size, comprise gating pattern, running channel mould, sprue mould and ingate mould on described wooden mold base plate, described running channel mould is spiral yarn shaped, and the one end is connected with gating pattern, and the other end is connected with the sprue mould; Described running channel mould is positioned at sprue mould top, in the intersection of running channel mould and sprue mould, is provided with the rising head mould, and rising head mould top is provided with venthole; Described ingate mould and sprue mould link together, and the sprue mould exceeds the ingate mould; Described sprue mould exceeds ingate mould 10-25mm.
(2) the type mask is placed on the wooden mold base plate, and inserts coal dust sand in the cavity volume of type frame;
(3) the type frame that will insert coal dust sand, together with the upset of wooden mold base plate, removes the wooden mold base plate, obtains running gate system and casting mold;
(4) molten iron of melting is poured into from cast gate, enter spiral yarn shaped running channel, when molten iron flow to the rising head place in spiral yarn shaped running channel, under the effect of inertia along the rising head spiral, after filtering, the screen pack arranged through the rising head bottom enters sprue, molten iron flows to ingate through the sprue bottom, finally enters in die cavity.
(5), after cooling, remove chill loam core, type frame, and, through sand removal, obtain glass die blank.
Running gate system of the present invention and the casting method process secondary slagging-off that adopts described running gate system, can guarantee the yield rate of foundry goods effectively by the Impurity removal in molten iron, improves inherent quality and the presentation quality of foundry goods.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is running gate system schematic diagram of the present invention.
The specific embodiment
(1) produce the wooden mold base plate by the glass die blank size, comprise gating pattern, running channel mould, sprue mould and ingate mould on described wooden mold base plate, described running channel mould is spiral yarn shaped, and the one end is connected with gating pattern, and the other end is connected with the sprue mould; Described running channel mould is positioned at sprue mould top, in the intersection of running channel mould and sprue mould, is provided with the rising head mould, and rising head mould top is provided with venthole; Described ingate mould and sprue mould link together, and the sprue mould exceeds the ingate mould; Described sprue mould exceeds ingate mould 10-25mm.
(2) the type mask is placed on the wooden mold base plate, and inserts coal dust sand in the cavity volume of type frame;
(3) the type frame that will insert coal dust sand, together with the upset of wooden mold base plate, removes the wooden mold base plate, obtains running gate system and casting mold.
As shown in Figure 1, above-mentioned running gate system is formed by molding sand and wooden mold base plate, comprises cast gate 1, running channel 2, sprue 5 and ingate 7, and described running channel 2 is spiral yarn shaped, and the one end is provided with cast gate 1, and the other end is connected with sprue 5; Described running channel 2 is positioned at sprue 5 tops, in running channel 2 and the intersection of sprue 5, is provided with rising head 3, and rising head 3 tops are provided with venthole 4, between rising head 3 bottoms and sprue 5, are provided with screen pack 6; Described ingate 7 connects with sprue 5, and sprue 5 exceeds ingate 7, and general sprue 5 exceeds 10-25mm than ingate 5.
Described ingate 7 has a plurality of, and it all connects with sprue 5.Generally on sprue 5 both sides, an ingate 7 respectively is set respectively.
(4) molten iron of melting is poured into from cast gate 1, enter spiral yarn shaped running channel 2, when molten iron flow to rising head 3 place in spiral yarn shaped running channel 2, under the effect of inertia along rising head 3 spirals, after filtering, the screen pack 6 arranged through rising head 3 bottoms enters sprue 5, molten iron flows to ingate 7 through sprue 5 bottoms, finally enters in die cavity.
The process of twice slagging-off is as follows:
Molten iron pours into from cast gate 1, enter spiral yarn shaped running channel 2, when molten iron flow to rising head 3 place in spiral yarn shaped running channel 2, under the effect of inertia along rising head 3 spirals, now impurity can float when cast, after the screen pack 6 that the molten iron of bottom arranges through rising head 3 bottoms filters, enters sprue 5.Impurity in the floating state can not flow to sprue 5, even have the impurity of floating to flow to sprue 5 with molten iron or do not have the impurity of floating to flow to sprue 5 with molten iron, the screen pack 6 that rising head 3 bottoms arrange can filter it, plays the effect that removes the gred first.
Sprue 5 exceeds ingate 7, connecting with ingate 7 of sprue 5 bottoms, the speed that flows to sprue 5 due to molten iron is greater than the speed that the interior molten iron of sprue 5 flows to ingate 7, therefore, the liquid level of sprue 5 interior molten iron will be higher than the liquid level of ingate 7 interior molten iron, impurity will float again like this, and molten iron flows in ingate 7 along sprue 5 bottoms.Equally, impurity floats over molten iron top, and the molten iron of sprue 5 inner bottom parts flows to ingate, thereby the impurity on top can not flow to ingate 7, plays secondary slagging-off effect.
(5), after cooling, remove chill loam core, type frame, and, through sand removal, obtain glass die blank.
Molten iron of the present invention refers to the general designation of casting by the mother metal molten condition.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (6)
1. a running gate system, comprise the cast gate, running channel, sprue and the ingate that are formed by molding sand, it is characterized in that: described running channel is spiral yarn shaped, and the one end is provided with cast gate, and the other end is connected with sprue; Described running channel is positioned at the sprue top, in the intersection of running channel and sprue, is provided with rising head, and the rising head top is provided with venthole; Described ingate and sprue connect, and sprue exceeds ingate.
2. a kind of running gate system according to claim 1, it is characterized in that: described sprue exceeds ingate 10-25mm.
3. a kind of running gate system according to claim 1, is characterized in that: between described rising head bottom and sprue, be provided with screen pack.
4. according to claim 1,2 or 3 described a kind of running gate systems, it is characterized in that: described ingate has a plurality of, and it all connects with sprue.
5. the novel casting method of a glass mold is characterized in that comprising the following steps:
(1) produce the wooden mold base plate by the glass die blank size, comprise gating pattern, running channel mould, sprue mould and ingate mould on described wooden mold base plate, described running channel mould is spiral yarn shaped, and the one end is connected with gating pattern, and the other end is connected with the sprue mould; Described running channel mould is positioned at sprue mould top, in the intersection of running channel mould and sprue mould, is provided with the rising head mould, and rising head mould top is provided with venthole; Described ingate mould and sprue mould link together, and the sprue mould exceeds the ingate mould;
(2) the type mask is placed on the wooden mold base plate, and inserts coal dust sand in the cavity volume of type frame;
(3) the type frame that will insert coal dust sand, together with the upset of wooden mold base plate, removes the wooden mold base plate, obtains running gate system and casting mold;
(4) molten iron of melting is poured into from cast gate, enter spiral yarn shaped running channel, when molten iron flow to the rising head place in spiral yarn shaped running channel, under the effect of inertia along the rising head spiral, after filtering, the screen pack arranged through the rising head bottom enters sprue, molten iron flows to ingate through the sprue bottom, finally enters in die cavity;
(5), after cooling, remove chill loam core, type frame, and, through sand removal, obtain glass die blank.
6. the novel casting method of a kind of glass mold according to claim 5, it is characterized in that: described sprue mould exceeds ingate mould 10-25mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104185888A CN103464687A (en) | 2013-09-13 | 2013-09-13 | Pouring system as well as novel casting method of glass mold |
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| CN2013104185888A CN103464687A (en) | 2013-09-13 | 2013-09-13 | Pouring system as well as novel casting method of glass mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209467A (en) * | 2014-09-19 | 2014-12-17 | 济南圣泉倍进陶瓷过滤器有限公司 | Preparing method of pipe fitting for building runner for casting |
| CN106363136A (en) * | 2016-08-31 | 2017-02-01 | 常熟市金诺精工模具有限公司 | Feed-head-free glass mold bottom casting method |
| CN110340302A (en) * | 2019-08-22 | 2019-10-18 | 徐海东 | A kind of shape chamber equipment of hexagon shell cast product piece |
| CN111872328A (en) * | 2020-06-09 | 2020-11-03 | 东风本田汽车零部件有限公司 | Multi-part casting die for engine bearing seat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104209467A (en) * | 2014-09-19 | 2014-12-17 | 济南圣泉倍进陶瓷过滤器有限公司 | Preparing method of pipe fitting for building runner for casting |
| CN106363136A (en) * | 2016-08-31 | 2017-02-01 | 常熟市金诺精工模具有限公司 | Feed-head-free glass mold bottom casting method |
| CN110340302A (en) * | 2019-08-22 | 2019-10-18 | 徐海东 | A kind of shape chamber equipment of hexagon shell cast product piece |
| CN111872328A (en) * | 2020-06-09 | 2020-11-03 | 东风本田汽车零部件有限公司 | Multi-part casting die for engine bearing seat |
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Application publication date: 20131225 |