CN103298573A

CN103298573A - Rigging system for casting railcar coupler parts

Info

Publication number: CN103298573A
Application number: CN2012800038436A
Authority: CN
Inventors: F.·安德鲁·尼鲍尔; 杰里·R.·斯梅雷茨基; 凯利·戴; 尼克·萨拉玛西克; 沃恩·马卡里; 罗伊·史蒂文森
Original assignee: Bedloe Industries LLC
Current assignee: Bedloe Industries LLC
Priority date: 2011-07-29
Filing date: 2012-07-20
Publication date: 2013-09-11
Also published as: RU2013158940A; WO2013019429A1; AU2012290584A1; BR112013033995A2; MX2014000241A; US20130025811A1; CA2840767A1

Abstract

A rigging system for casting railcar coupler knuckles is provided. The rigging system comprises cope and drag portions of a mold, a down sprue defined in said cope portion, at least one riser defined in said mold, at least two ingates defined at least partially in said mold and connected to said at least one riser, at least two knuckle mold cavities defined in said mold, and wherein said ingates have a non-circular shape.

Description

The pouring and riser systems of coin rail car coupler components

Technical field

The present invention relates to the method and apparatus field for coin rail car car coupler knuckle, relate in particular to the pouring and riser systems of coin rail car coupler components.

Background technology

The railcar hitch is arranged at the end of railcar, is connected to the end with railcar on the adjacent end of another railcar.The bonding part of each hitch all is called as the hook tongue in the railway field.For example, U.S. Patent number is the hook tongue that 4024958,4206849,4605133 and 5582307 patent has been described the rail transporter hitch.

The car coupler knuckle is made by cast steel and three cores using a mould and form hook tongue inner space usually.These three cores form usually rear core or title " kidney " partly, middle core or title " c-10 " or " pivot pin " partly with the place ahead core or the title part that " refers to type ".In casting process, mould is most important to producing qualified rail transporter car coupler knuckle with the dependency relation that is built in three cores in the mould.

Producing the modal technology of these assemblies is the sand casting.The sand casting is the method that forms a kind of high rate/low cost production of complicated hollow shape (for example hitch body, hook tongue, body side frame and body bolster).Typical sand casting process comprises: (1) forms mould by heap sand around a model, and this model generally includes running gate system and pouring and riser systems; (2) remove this model from mould; (3) core of sealing is put into mould; (4) fill with boiling hot liquid metal in the mould by being cast in; (5) allow metal in mould, cool off; (6) metal that solidifies is called original foundry goods, shifts out by abolishing mould; (7) may use grinder, welding machine, heat treatment and machining to polish, clean this foundry goods.

In different foundry engieerings, different sandbinders can be used so that sand keeps the shape of model.The property finished of casting details in these binding agent controlled dimensions stability, surface smoothness and each detailed process is so have very big influence to final products.Two sand casting methods comprise: (1) green-sand, comprise silica sand, clay, organic binder bond and water, and (2) comprise silica sand and quick curing chemistry binding agent from hard or air-setting sand.Traditionally, in view of low cost and mold materials, hitch body and hook tongue use the green-sand process to make.Though all be to use this method to produce these assemblies effectively for many years, there is defective in this process.

In sand casting process, mould is to keep the shape of sand to make by using sand as basic material and mixing a kind of binding agent.Mould has two halves, mo(u)ld top half (top) and mo(u)ld bottom half (bottom), and they separate along parting line.The shape that sand is filled in model on every side and preserves model in the removed back of mould.In leaching process, the machining drafting angle can break away from from mould to guarantee this model on model.In some sand casting operations, in the process of molded and cast, use molding box to come propping sand.Core is inserted in the mould, and mo(u)ld top half is put to the mo(u)ld bottom half with closing molding.

When casting complexity or hollow component, core is used for arranging the complicated part that this hollow inside maybe can not use a model and form.These cores are normally mixed by sand, binding agent, are filled to then in shape facility box the same with core to make.These core boxes use artificial jam-pack or use core blower.In box, shift out core and put into mould.When core is put into mould, use core print guided placement position and can prevent that core from moving when casting metal.In addition, can use chaplet to support or limit the movement of core, chaplet is fused in the parent metal in process of setting.

Mould comprises cast or " water and emit " system usually, and it provides the runner of a motlten metal, and metal is flowed in the die cavity that constitutes the cast element shape.Running gate system generally includes a sprue that flows to overflow well, and overflow well is connected to runner conversely, and runner is the mo(u)ld top half of mould and/or the channel on the mo(u)ld bottom half part, uses for the metal flow mistake.Runner is connected to rising head usually, and rising head is the fluid reservoir of unnecessary motlten metal, and constantly supply unit divides die cavity when metal cools off.Metal flows in the mold cavity from rising head and/or runner by ingate, thereby forms parts.

After metal is injected into mould, can cool off and shrink at foundry goods when solid-state.When metal cooling and contraction, extra liquid metal must constantly be replenished to and shrink the position, otherwise hole will appear in final parts.At thick and heavy metal section, rising head is set so that the auxiliary storage of liquid metal to be provided in the mould.Rising head is the zone of final set, thereby makes the liquid in it keep the time ratio die cavity of liquid condition longer.Along with the liquid cools in the die cavity, the position is shunk in the rising head supply, to guarantee to produce a solid final casting.Rising head is opening at the top of mo(u)ld top half mould, also can serve as air vent in cast and cooling procedure air is drained.

In running gate system, the correct design of ingate and placement are the key factors that reduces or eliminates the impurity that may form in running gate system and mold cavity filling process.If the meeting incorrect or that be placed on foundry goods of ingate and running gate system size causes metal that the position of unnecessary whereabouts takes place, will the turbulization metal flow, this will cause that liquid metal carries air bag, and air bag can cause the impurity formation of (often be called as and reoxidize impurity).These impurity have negative effect and there is potential hazard in the operating characteristic of foundry goods part quality.In addition, these impurity often need to pay expensive secondary mechanical to be handled to identify, remove, and repairs the impurity that is positioned at bad position.

Except reoxidizing impurity, the last liquid level of turbulent flow also can increase total air content of liquid metal, owing to surpass other zones in this regional gas solubility level in process of setting, so the defective of pore appears in this place that may cause in the end solidifying.

The refractory material that other common sources of impurity generally include the molding sand that is etched, the slag of carrying secretly, carry secretly from melting furnace or metal can from smelting furnace or metal can in steel casting.The incorrect design of running gate system or turbulent flow cast model all can produce these impurity or make its further deterioration.

Another will be considered when placing ingate in the Design of Runner System process is to remove potential hazard in the process at rising head and ingate.In some cases, the defective that causes in these operations of surface finish is to having a negative impact in performance and the service life of foundry goods.Therefore, make the zone with to this defective sensitivity that component capabilities is played a crucial role not arrange that for example ingate, rising head are connected and cold treatment etc. must be carried out secondary operations in these zones feature becomes extremely important.Because the asymmetry of railcar car coupler knuckle and different wall thickness thereof, function of use limits the position of ingate, and can not there be error in the position of ingate (as venturi and pulling face).

In traditional casting technique, metal is injected in the sprue, flow to then in the overflow well that is formed directly in the mould.Melt metal pass runner from overflow well enter rising head and with metal flow toward the ingate of mold cavity.Some casting method uses a mould once can cast a plurality of hook tongues.In these systems, each rising head has the ingate of a plurality of openings from it traditionally.Each ingate leads to a car coupler knuckle.According to the quantity of hook tongue die cavity in the mould, overflow well also can lead to a plurality of rising heads by a plurality of runners.

It is inconsistent that aforesaid inside the outer surface inconsistent and/or metal by the hook tongue appears in many hook tongues.In using hook tongue process, these inconsistent loadings that may cause are offset, increase accident risk.

Summary of the invention

In first embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises the mo(u)ld top half of mould and mo(u)ld bottom half part, be arranged on the sprue of described mo(u)ld top half part, be arranged at least one rising head, at least part of at least two ingates that are arranged in the described mould and are connected to described at least one rising head in the described mould, be arranged at least two hook tongue mold cavities in the described mould, and wherein, described ingate is non-circular shape.

In a second embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises the mo(u)ld top half of mould and mo(u)ld bottom half part, be arranged on the sprue of described mo(u)ld top half part, be arranged at least one rising head in the described mould, be arranged in the described mould and be connected to described at least one rising head at least two ingates, be arranged at least two hook tongue mold cavities in the described mould, and wherein, described ingate comprises a basal surface, and described basal surface and described at least one interruption-forming one obtuse angle that emits.

In the 3rd embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises the mo(u)ld top half of mould and mo(u)ld bottom half part, at least part of sprue that is arranged on described mo(u)ld top half part, be arranged at least one rising head in the described mould, be arranged in the described mould and be connected to described at least one rising head at least one ingate, be arranged at least one hook tongue mold cavity in the described mould, and wherein, described ingate is non-circular shape.

In the 4th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises the mo(u)ld top half of mould and mo(u)ld bottom half part, at least part of sprue that is arranged on described mo(u)ld top half part, be arranged at least one rising head in the described mould, be arranged in the described mould and be connected to described at least one rising head at least one ingate, be arranged at least one hook tongue mold cavity in the described mould, and wherein, described ingate is non-circular shape.

In the 5th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises the mo(u)ld top half of mould and mo(u)ld bottom half part, at least part of sprue that is arranged on described mo(u)ld top half part, be arranged at least one rising head in the described mould, be arranged in the described mould and be connected to described at least one rising head at least one ingate, be arranged at least one hook tongue mold cavity in the described mould, and wherein, described ingate comprises a basal surface, and described basal surface and described at least one interruption-forming one obtuse angle that emits.

In the 6th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises mo(u)ld top half and the mo(u)ld bottom half part of mould, described mo(u)ld bottom half partly has exterior bottom wall, at least part of sprue that is arranged in the described mo(u)ld top half part, be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part, be arranged in the described mould and be connected at least one ingate of described at least one rising head, be arranged at least one hook tongue die cavity in the described mould, be arranged at least one runner in the described mould, described at least one runner is connected to described rising head and has a diapire, and the distance of the described diapire of described rising head and the described exterior bottom wall of described mo(u)ld bottom half is less than the described diapire of described rising head and the distance of described exterior bottom wall.

In the 7th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises mo(u)ld top half and the mo(u)ld bottom half part of mould, described mo(u)ld bottom half partly has exterior bottom wall, at least part of sprue that is arranged in the described mo(u)ld top half part, be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part, be arranged in the described mould and be connected at least one ingate of described at least one rising head, be arranged at least one hook tongue die cavity in the described mould, be arranged at least one runner in the described mould, described at least one runner is connected to described rising head and has a diapire, and the distance of described diapire and described exterior bottom wall is less than the described diapire of described rising head and the distance of described exterior bottom wall.

In the 8th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises mo(u)ld top half and the mo(u)ld bottom half part of mould, described mo(u)ld bottom half partly has exterior bottom wall, at least part of sprue that is arranged in the described mo(u)ld top half part, be arranged on the overflow well with a diapire in the described mo(u)ld bottom half part, be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part, and the distance of the described diapire of described overflow well and described exterior bottom wall is less than the described diapire of described rising head and the distance of described exterior bottom wall.

In the 9th embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises mo(u)ld top half and the mo(u)ld bottom half part of mould, described mo(u)ld bottom half partly has exterior bottom wall, at least part of sprue that is arranged in the described mo(u)ld top half part, be arranged on the overflow well with a diapire in the described mo(u)ld bottom half part, be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part, and at least one ingate that is connected to described rising head, described ingate is positioned on the described sidewall of described rising head, and is positioned in from the described diapire of described rising head about 2 inches.

In the tenth embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises mo(u)ld top half and the mo(u)ld bottom half part of mould, be arranged at least one rising head in the described mould, be arranged at least one hook tongue die cavity in described mo(u)ld top half and the mo(u)ld bottom half, and has a symmetrical horizontal line, and be arranged at least one ingate in the described mould, and be connected to described hook tongue die cavity so that described ingate is offset under the described symmetrical horizontal line of described hook tongue die cavity.

In the 11 embodiment, a kind of method of coin rail car car coupler knuckle comprises step: mo(u)ld top half and mo(u)ld bottom half part that mould is provided, sprue at least part of described mo(u)ld top half part that is arranged on described mould is provided, at least one hook tongue die cavity with a diapire is provided, described hook tongue die cavity is arranged in the described mo(u)ld top half and mo(u)ld bottom half of described mould, at least one rising head that is arranged in the described mould is provided, provide the described rising head of link at least one ingate of described hook tongue die cavity, and described motlten metal injected described hook tongue die cavity so that described motlten metal 5 inches of the described diapire that is positioned at described hook tongue die cavity to enter described hook tongue die cavity.

Among the 12 embodiment, a kind of method of coin rail car car coupler knuckle comprises step: be provided at the cast in the mould that comprises at least one hook tongue die cavity, add metal to described at least one hook tongue die cavity so that described metal flows in described at least one hook tongue die cavity.

Among the 13 embodiment, a kind of method of coin rail car car coupler knuckle comprises: be provided at the cast in the mould that comprises at least one hook tongue die cavity, wherein, described cast comprises at least one ingate that leads to described hook tongue die cavity so that the motlten metal that enters described hook tongue die cavity descends less than 3 inches before the diapire of the described hook tongue die cavity of contact.

In the 14 embodiment, a kind of method of coin rail car car coupler knuckle comprises step: be provided at the cast in the mould that comprises at least one hook tongue die cavity, wherein said cast comprises and is arranged in the described mould and is positioned at least one ingate under the described hook tongue die cavity, fills described hook tongue die cavity with motlten metal.

In the 15 embodiment, a kind of pouring and riser systems for coin rail car car coupler knuckle comprises a mo(u)ld top half, one mo(u)ld bottom half, one sprue core, described core has at least part of sprue that arranges in it, described mo(u)ld bottom half partly has a diapire, described mo(u)ld bottom half partly has the core print that arranges in it, the shape of described core print and described sprue core adapt, described mo(u)ld top half and mo(u)ld bottom half partly have corresponding restriction hook tongue die cavity part within it, when described mo(u)ld top half and mo(u)ld bottom half partially enclosed together the time, described hook tongue die cavity partly aligns and forms at least one hook tongue die cavity, be arranged in the described mould and compare at least one runner that its angle makes progress with the described diapire of described mo(u)ld bottom half part, be arranged in the described mould and be connected at least one rising head of described at least one runner; And connect described at least one rising head at least one ingate of described at least one hook tongue die cavity.

Description of drawings

May better understand native system with reference to following drawing and description.Parts in the accompanying drawing are in proportion unnecessary, and emphasis then is diagram essence of the present invention.And in each accompanying drawing, similar Reference numeral refers to the corresponding component in the different views.

Fig. 1 is running gate system among the embodiment and the stereogram of four complete hook tongues.

The stereogram that exposes an ingate behind Fig. 2 hook tongue of running gate system removal for Fig. 1.

Fig. 3 removes the side view that possible size is given an example behind two hook tongues for the running gate system of Fig. 1.

Fig. 4 is the vertical view of the running gate system of Fig. 1.

Fig. 5 is the vertical view that has marked the running gate system Outside Dimensions of Fig. 1.

Fig. 6 is the vertical view of the rising head among Fig. 1.

Fig. 7 is the side view of the rising head after the hook tongue among Fig. 1 is removed.

Fig. 8 is the side view of the ingate among Fig. 7.

Fig. 9 is the side view of the ingate among Fig. 7.

Figure 10 is the side view of the cast gate among Fig. 1.

Figure 11 is the side view of overflow well, cast gate and rising head among Fig. 1.

Figure 12 is the stereogram of the drag portion of the mould that the sprue core is installed of embodiment 1.

Figure 13 is the stereogram after the sprue core of Figure 12 is taken out mould.

Figure 14 is the side view of the sprue core of Figure 12.

Figure 15 is the side view of the sprue core of Figure 12.

Figure 16 is the upward view of the sprue core of Figure 12.

Figure 17 is the vertical view of the sprue core of Figure 12.

Figure 18 is the stereogram of the sprue core of embodiment 2.

Figure 19 is the exploded view of core among Figure 18.

Figure 20 is the exploded view of core among Figure 18.

Figure 21 is the stereogram of half core of Figure 18.

Figure 22 is the stereogram of half core of Figure 18.

Figure 23 is equipped with the stereogram of the core of Figure 18 for mo(u)ld bottom half.

Figure 24 is the stereogram of the sprue core of embodiment 3.

Figure 25 is equipped with the stereogram of filter for the core of Figure 24.

Figure 26 is the bottom plan view of the core of Figure 24.

Figure 27 is the cut-away side view of the core of Figure 24.

Figure 28 is the exploded view of sprue core among Figure 24, comprises cope portion, drag portion, hook tongue core and filter.

Figure 29 is the side view of system shown in Figure 28.

Figure 30 is the stereogram of the mo(u)ld bottom half of Figure 28.

Figure 31 is equipped with the mo(u)ld bottom half stereogram of filter for the mo(u)ld bottom half of Figure 30.

Figure 32 is the drag portion perspective elevation of Figure 30, comprises the sprue core and the hook tongue core that mo(u)ld bottom half is installed of Figure 24.

Figure 33 has showed the stereogram of the mo(u)ld bottom half in Figure 32 system when being positioned over mo(u)ld top half on the mo(u)ld bottom half, has the sprue core box hook tongue core that is positioned at mo(u)ld bottom half.

Figure 34 dots mo(u)ld top half to show internal feature and the parts of mo(u)ld bottom half for the mo(u)ld top half that seals among Figure 33 and the stereogram of mo(u)ld bottom half.

Figure 35 is the vertical view of having showed the mould of C-C line.

Figure 36 is the sidepiece profile along the C-C line of Figure 35.

Figure 37 is the vertical view of a cover hook tongue and running gate system.

Figure 38 is the hook tongue of Figure 37 and the top perspective view of running gate system.

Figure 39 is the hook tongue of Figure 37 and the upward view of running gate system.

Figure 40 is the hook tongue of Figure 37 and the face upwarding stereogram of running gate system.

Figure 41 is the hook tongue of Figure 37 and the vertical view that running gate system shows along the B-B line.

Figure 42 is that Figure 41 shows cut-away side view along the B-B line.

Figure 43 comprise for Figure 37 that dotted line shows among the rising head of running gate system of two hook tongues and Figure 24 the sprue core and the stereogram of sprue.

Figure 44 is the side view of the casting portion of Figure 43.

Figure 45 is the stereogram of the casting portion of Figure 43.

The specific embodiment

Described a kind of pouring and riser systems (being also referred to as running gate system) in the literary composition, be used for coin rail car car coupler knuckle and be used for the core of pouring and riser systems.With reference to each figure, in one embodiment, car coupler knuckle 10 is formed by mo(u)ld top half (top) (not shown) and mo(u)ld bottom half (bottom) 14 parts of mould.Mo(u)ld top half and mo(u)ld bottom half 14 parts may be formed in a molding box (not shown) by " green-sand ".In this process, car coupler knuckle model is positioned in the molding box, and green-sand (being mixed by silica sand, clay, organic binder bond and water) is poured in the above, compresses and heats to solidify this mould then.Remove model and reserve die cavity 16, die cavity 16 forms the outer wall of car coupler knuckle 10.In this process, casting of metals process cheek remain on the sand mo(u)ld tool around to keep the shape of mould.

In another kind of operation, use a kind of " air-setting " operation to form mo(u)ld top half 12 and mo(u)ld bottom half 14, wherein molding sand and binding agent such as phenolic aldehyde urethane are mixed to replace green-sand to use.In this process, do not need to heat sand and solidify.Air-setting or spontaneous coagulation mould can remove molding box after solidifying in addition, and in " no molding box " operation cast element.

Mo(u)ld top half 12 and mo(u)ld bottom half 14 parts include the hook tongue die cavity 16 of the external surface shape of one or more formation car coupler knuckles or hook tongue, and hook tongue die cavity 16 is made of half die cavity 16 of mo(u)ld top half 12 and half of mo(u)ld bottom half 16 usually.Mo(u)ld bottom half 14 parts of showing among the embodiment as shown in the figure are formed with four hook tongue die cavities can cast four hook tongues simultaneously.Except die cavity 16, the cope portion branch comprises a sprue 18 that leads to overflow well 20, as shown in figure 13.In this embodiment, sprue core 51, its a plurality of embodiment will be described later, and cooperate to provide another passage to motlten metal with overflow well 20, avoid causing the pernicious erosion of the sand that constitutes overflow well 20.Overflow well 20 or sprue core 51 comprise the runner 22 that leads to rising head 24, and rising head 24 comprises the sidewall 26 that stretches out rising head 24 and leads to the ingate 26 of hook tongue die cavity 16.

In casting process, the core 146 that forms car coupler knuckle inner space is placed in the die cavity and with mo(u)ld top half and mo(u)ld bottom half 14 and is enclosed in together.Motlten metal injects sprue 18, flow to for 18 times in overflow well 20 or the sprue core 51 along sprue.Motlten metal flows out overflow well 20 or sprue core 51, passes runner 22, enters rising head 24 and enters hook tongue die cavity 16 by ingate 26.Allow casting hook tongue 10 cool off before removing mould.

Fig. 1 has showed four casting die cavities 10 that still are connected with cast 30 after mould removes.Cast is formed in sprue 18, overflow well 20, runner 22, rising head 24, ingate 26 and exhaust outlet (not shown) by unnecessary metal residual.As shown in the figure, the sprue of quoting in the literary composition 18, overflow well 20(or sprue core 51), runner 22, rising head 24 and ingate 26 be considered to cast, namely Shi Ji sprue 18, overflow well 20, runner 22, rising head 24 and ingate 26 all are formed in the mo(u)ld top half and mo(u)ld bottom half of mould.

In one embodiment, ingate 26 is designed to non-circular shape.In this embodiment, this non-circular shape is teardrop shaped or general ellipse, and lacrimal thin part is positioned at the bottom of ingate 26, near the bottom 32 of rising head 24.In addition, the diapire of ingate 26 34 tilts towards the bottom surfaces 36 of mo(u)ld bottom half part 14 downwards, forms an obtuse angle 38 with the sidewall 28 of rising head, and ingate 26 form for motlten metal flow through to downslope.Ingate 26 lead to hook tongue die cavity 16 to downslope, make metal enter hook tongue die cavity 16 with the turbulent flow of minimum from the front of hook tongue, thereby can reduce the amount that entrains into gas that can cause the non-metallic inclusion precipitation in the die cavity.

The teardrop shaped of ingate 26 is compared with conventional art with downward-sloping diapire 34 has advantage.When flowing through ingate 26, motlten metal can reduce the turbulent flow of motlten metal in lacrimal thin bottom to the hook tongue die cavity 16 time.In addition, the downward-sloping diapire 34 of ingate can make die cavity begin from the bottom to fill rather than pour into hook tongue die cavity 16 from a higher position of positive 40.Because the hook tongue has more symmetrical shape along line 42 as shown in the figure than other any axis along the hook tongue, therefore should help metal evenly to solidify in 40 inlet port positions, front.

Compare with conventional art, the size of rising head 24 and ingate 26 all increases to some extent so that metal better flows.Preferably, the internal diameter minimum of sprue 18 is 1.4 ", minimum about 1.5 square inches of its cross section.Preferably, overflow well 20 is high by minimum about 5 ", wide minimum about 4 ".Preferably, the height of rising head 24 from the crooked diapire 32 of rising head 24 to upper wall 32 minimum about 12 ".In one embodiment, the capacity of rising head is minimum is about 300 cubic inches.Preferably, the cross-sectional area of rising head 24 is minimum is 25 square inches.Preferably, the length of the sidewall 28 of runner 22 from overflow well 20 to the rising head 24 that connects is less than 2 ".Preferably, the cross section of runner 22 is at least 3 square inches.Level draw pass runner 22 the imaginary axis 44 with hook tongue die cavity 16 separately so that hook tongue die cavity 16(generates hook tongue 10) only about half of being positioned on the imaginary axis 44 in the vertical height, make only about half of in hook tongue die cavity 16 vertical heights be positioned at the imaginary axis 44 times.In addition, runner 22 can be built in the mo(u)ld top half 12.In one embodiment, in the distance about 6 of the mo(u)ld top half part upper wall 46 from the imaginary axis 44 to hook tongue die cavity ".

In first embodiment, ingate 26 is teardrop shaped." wide, 6 " height in the wideest transversal part about 3.15, and about 15 square inches of cross section.Preferably, ingate 26 extends about 0.6 from the sidewall 28 of rising head 24 to the front side wall 40 of hook tongue die cavity 16 ".

This embodiment is in fact very small-sized, as shown in Figure 5, is used for the length of the whole series cast of four hook tongues less than 38 ", wide less than 51 ".In addition, this cast design is very efficient, and the final gold dust of the foundry goods of a moulding belongs to ratio less than 2.5:1.Gold dust belong to than be sand weight divided by foundry goods and cast weight.This embodiment also can extend to for one-step casting greater or less than four hook tongues by quantity and the position of adjusting runner, rising head and ingate.

In another embodiment, shown in Figure 12-17, sprue 51 is used to casting process.Sprue 51 is joined at the mo(u)ld bottom half part 14 of mould and overflow well 20 and is incorporated in metal flow passage and replaces overflow well 20.Sprue core 51 is used for reducing or eliminating the erosion of the sand that forms overflow well 20.Preferably, sprue core 51 is formed by fine granularity sand, and for example american foundrymen's societry (" AFS ") fineness is the sand of 75-80.Fine granularity sand is bigger than the density of molding sand wall, and the molding sand wall is generally american foundrymen's societry fineness 60.Sprue core 51 also can be the spontaneous coagulation air-blown core, can form a more complete surface.High density material more is not subject to the erosion of the liquid metal that trickles.Sprue core 51 is used for leading to rising head 24, so metal flowed in the crooked die cavity before flowing into rising head 24.Sprue core 51 can avoid the mo(u)ld top half of mould and the actual sand wall of mo(u)ld bottom half 14 parts to be subjected to the erosion of the motlten metal of trickling fast, thus the porosity of the hook tongue 10 that reduces to finish and contraction problem.And, be coated with shallow layer (the infusibility coating that is coated on mould and the core is subjected to the infiltration of motlten metal to avoid it) at sprue 51 movably and cure to the sand wall of overflow well 20 more even than with it.Therefore, sprue 51 more anti-infiltration and erosions, thus can allow the metal of higher rate continue to flow through overflow well 20.

Figure 12-17 has showed the specific embodiment of sprue core 51.In one embodiment, sprue core 51 has a hollow body 54 usually, and in casting process, this hollow body 54 is main grooves that motlten metal flows through.Among the shown embodiment, it is conical or spherical that body 54 is, but also can be other Any shape.The roof 56 of sprue core 51 comprises first opening 62, and it cooperates and align with sprue 18 in the mould.The diapire 58 of above-mentioned sprue core 51 is circles that the shape of the overflow well 20 in the mo(u)ld bottom half part 14 with mould is complementary, but also can be other Any shape.The sidewall 60 of sprue core 51 is tapers, so the minimum transversal part of this sprue core 51 is positioned at roof 56 places.

The sprue core 51 that above-described embodiment is showed is parts of four coupler knuckle casting methods.This sprue core 51 comprises the 2 64 and the 3 66 opening on the sidewall 60.These

openings

64,66 align with the mo(u)ld top half of mould and the rising head 24 in mo(u)ld bottom half 14 parts." shoulder " that the 2 64 and the 3 66 opening directly leads to the one 68 and the 2 69 hollow circuit cylinder wall or extends from the sidewall 60 of sprue core 51.These hollow

circuit cylinder walls

68,69 have formed the runner 22 that leads to rising head 24 effectively.These hollow

circuit cylinder walls

68,69 also protect the runner 22 in the mould to avoid corroding, and may extend in rising head 24 die cavities.When sprue core 51 is positioned at overflow well 20, this hollow

circuit cylinder wall

68,69 and the depression that will form runner 22 adapt.This also helps sprue core 51 to keep position accurately in overflow well 20.When metal watered to the sprue core 51, metal passed the

opening

64,66 of sprue core 51, and passed the runner 22 that is formed in the hollow circuit cylinder wall 68,69.Again, it can protect the surface of the mo(u)ld top half 12 that will form runner 22 and mo(u)ld bottom half 14 to avoid corroding.

In one embodiment, the 2 64 and the size of the 3 66 opening about 2.25 " between 3.75, and the one 68 and the 2 69 hollow circuit cylinder wall extends about 0.5 from the sidewall 60 of sprue core 51 " to 1.5 ".This hollow

circuit cylinder wall

68,69 thickness may be about .25 "-.75 ".The 1 with the sidewall 60 of the internal diameter of the opening of the 2 69 hollow circuit cylinder wall and sprue core 51 on the 2 64 and the 3 66 opening the same substantially, or be about 2 ".

Sprue core 51 also can comprise filter 78 to help the impurity that filters out in the metal, and helps to reduce turbulent flow in the metal by the control metal flow.In one embodiment, groove 80 is formed on the inner surface 82 of sidewall 60 of sprue core 51.In this embodiment, groove 80 is the arcs that are complementary with circular filter 78, but they also can be the filter 78 of Any shape to adapt to any size or shape, for example are square under the situation of square filter.To such an extent as to arranging metal like this, filter to when the 2 64 and the 3 66 outlet flows out in the runner 22, must pass filter 78.

In addition, sprue core 51 can be one two core.If when using filter 78, will seem helpful especially, because can dividing half-and-half, severs core 51, to allow to install filter 78.

In fact, when metal is poured sprue 18 into, metal flows to the inside 54 of sprue core 51 hollows, by second opening 64 and the 3rd opening 66, first opening 68 and second opening 69 by the hollow circle tube wall enters rising head 24 then, enters hook tongue die cavity 16 by ingate 26 then.

Sprue core 51 also comprises a plurality of calibration functions, is installed in improperly on the drag portion 14 of mould to prevent sprue core 51.First calibration function is arranged on first extension 70 of outer surface of outer wall of the bottom 58 of sprue core 51.First extension 70 is complementary with an opening 70 of the drag portion 14 of mould, with the height of helping set sprue core 51.In one embodiment, first extension 70 extends about 1 inch from the diapire 58 of sprue core 51, and radius is 0.5 inch to 1.5 inches.In another embodiment, the diameter of first extension 70 is about 2 inches.

Second calibration function is preferably second extension 74 of the sidewall 60 that is arranged on sprue core 51, and sidewall 60 is arranged between second opening 64 and the 3rd opening 66, for rising head 24 provides additional.Second extension 74 is preferably cylindrical, thereby is complementary with the opening 76 of the drag portion 14 that is arranged on mould.In one embodiment, the radius of second extension 74 is 0.5 inch to 1.5 inches, and is about 2 inches from sidewall 60 extensions.Second extension 74 prevents that sprue core 51 is mounted in the opposite direction, and guarantees that the opening part of second opening 64 and the 3rd opening and rising head 24 matches each other.

In the embodiment of another one sprue core 51, sprue core 51 also comprises other several openings, so metal can flow into four rising heads 24, flows into eight hook tongue die cavities 16 then.If needs are arranged, can also add other several openings and hold more metal and flow into more rising head.

An alternative embodiment who has shown sprue core 84 among Figure 18-23.In this embodiment, sprue core 84 comprises roof 86, diapire 88 and sidewall 90.Roof 86 comprises that first opening 62 and at least one sidewall 90 comprise second opening 64.As described in initial embodiment, the cylindrical wall (not showing among the figure) of hollow may be arranged also around the opening.Offer how many openings on the sidewall 90, depend on that the miscellaneous part that how many runners 22 is arranged or how many moulds are arranged need pass through sprue core 84.

Figure 19-22 has shown the internal structure of sprue core 84.If use filter 78, the inwall 92 of sprue core 84 comprises at least one groove 94, and the shape of its shape and filter 78 is complementary.In the accompanying drawing of this embodiment, groove 94 is that arc matches each other with filter 78.

Can also comprise first extension 96 that is arranged on diapire 88 among this embodiment, make itself and overflow well 20 aligned with each other; With second extension 98 that is arranged on sidewall outer, make itself and sprue core 84 arcs align to prevent rotation.

In the embodiment of any core, first extension and second extension may be removed, and the cylindrical wall of hollow may be used for suitably core being placed in the mould.Figure 23 has showed that sprue core 84 matches with the overflow well 20 of mo(u)ld bottom half 14.

The another one embodiment that has shown sprue core 100 among Figure 24-272.In this embodiment, sprue core 100 comprises a roof 102, and roof 102 is provided with 104, one diapires 106 of first opening, and diapire 106 is provided with second opening 108.First opening 104 is connected by runner 110 with second opening 108, by the core body 112 of sprue core 100.This embodiment comprises the runner 114 that is arranged on diapire 106 outer surfaces.These runners 114 can form the part of cast gate, and about the embodiment of pouring and riser systems for sprue core 100, this can explained subsequently.Sprue core 100 also comprises the filtering base 116 that is arranged on the diapire 68, and filtering base 116 is connected with groove 114.When sprue core 100 placed on the mould, these filtering bases 116 were supporting filter 78.Filter and filtering base are arranged on the mould with working in coordination, and these can be described in the back.

In the embodiment of another one pouring and riser systems, can use in the previous drawings description to sprue core 100.This pouring and riser systems and corresponding sprue core 100 are shown in Figure 28-45.From Figure 35,

Pouring and riser systems comprises cope portion 12 and the drag portion 14 of mould, and drag portion 14 has a diapire outside 122.Sprue 18 is arranged on the mo(u)ld top half of mould, but if desired, can extend in the mo(u)ld bottom half 14.

Be provided with only rising head 24 in the mould, preferably, a part is in cope portion 12, and a part in fact in the embodiment of accompanying drawing, comprises four rising heads (although can only see two in Figure 36) in drag portion 14.At least one hook tongue die cavity 16 comprise the die cavity 16 that is arranged at mo(u)ld top half 12 first half 124 and be arranged at mo(u)ld bottom half 14 die cavity 16 second half 126.Shown in other accompanying drawing, this embodiment in fact comprises eight tongue die cavities 16, although can only see 1 in Figure 36.

In illustrated embodiment, mo(u)ld bottom half 14 comprises a core print 128, and described core print 128 is complementary with above-mentioned sprue core 100 shapes.Mo(u)ld bottom half 14 also comprises filtering base 130, is complementary with filtering base 116 on the diapire 106 that is arranged on sprue core 100.And drag portion comprises runner 22, is complementary with groove 114 on the diapire 106 that is arranged on sprue core 100.The groove 114 that is arranged on the sprue core 100 has formed the first half of runner 22 effectively, and is arranged on half of bottom that runner section 132 on the mo(u)ld bottom half 14 has formed runner 22.Moreover mo(u)ld bottom half 14 comprises also that at the base portion of overflow well 20 a little overflow well that has arcwall 134 20 further improves metal flow.The position of the diapire 136 of overflow well 20 is compared with the diapire of rising head 24, more near the outer wall 122 of mo(u)ld bottom half 14 bottoms.In other words, the distance from the diapire 136 of overflow well to the outer wall 122 of bottom, shorter to the distance of the outer wall 122 of bottom than the diapire 32 of rising head 24.

As Figure 37, the vertical view of Figure 39-41 and Figure 43, shown in upward view and the perspective view, ingate 26 begins to extend from rising head 24, and is connected to hook tongue die cavity 16.Moreover, can also there be many ingates 26 to lead to many hook tongue die cavities 16 from many rising heads 24.The embodiment of accompanying drawing has showed a kind of very effective pouring and riser systems, it can be in a mould eight hook tongues of disposable casting, width is slightly less than or equals 38 inches and length and is slightly less than or equals 51 inches.In illustrated embodiment, four runners 22 lead to four rising heads 24.Each rising head 24 has two ingates 26, and each ingate leads to a hook tongue die cavity 16, after casting cycle finishes, has 8 hook tongue die cavities 16 and 8 hook tongues 10.

Ingate 26 among this embodiment also is specially designed.For example, as Figure 36, ingate 26 shown in the profile of Figure 42 and Figure 44 is positioned at the horizontal line 140 corresponding belows of hook tongue die cavity 16 symmetries.In one embodiment, the diapire 142 of ingate is at the diapire 144 about 5 ' of hook tongue die cavity 16 ' enter hook tongue die cavity 26 in the scope.In yet another embodiment, ingate 26 is positioned in from the diapire 32 of rising head 24 and is no more than 2 inches places.

Figure 28-34 has showed the embodiment of assembling and the use of pouring and riser systems.Figure 28 is the exploded view of whole system.Mo(u)ld top half 12 and mo(u)ld bottom half 14 parts are decomposed to come and show its internal structure.Sprue 18 be positioned at mo(u)ld top half 12 above.The inside of mo(u)ld bottom half 14 can be seen the hook of comprising tongue die cavity 16, core print portion 128, overflow well 20, rising head 24 and ingate 26.Figure 29 is the side view of pouring and riser systems, is the dotted portion between mo(u)ld top half 12 and the mo(u)ld bottom half 16.In this width of cloth figure, easier see hook tongue die cavity 16 each

half

124 and 126, and overflow well 20, runner 22 and rising head (not only at mo(u)ld top half 12 but also in the part of mo(u)ld bottom half 16).The hook tongue core 146 that forms the inner space of hook tongue 10 all aligns with its rearmost position, sprue core 100 and filter 78 in die cavity.

What Figure 30 showed is that mo(u)ld bottom half 14 does not have other any parts, and what Figure 32 showed is that filter 78 is installed on the filtering base 130 of mo(u)ld bottom half 14.Figure 32 shows be core 146 and sprue core 100 soon be installed in respectively the hook tongue die cavity 16 that is arranged on the mo(u)ld bottom half 14 half 126 and core pattern seat portion 128 on.What Figure 33 showed is that core 146 and sprue core 100 correspondingly are installed on mo(u)ld bottom half 16 and the mo(u)ld top half 12, is about to dip near mould.What Figure 34 showed is closed mo(u)ld top half 12 and the interior views that the mo(u)ld bottom half of sprue 18 is installed.What Figure 36 showed is that sprue core 100, filter 78 and hook tongue core 148 are installed in closed mo(u)ld top half 12 and mo(u)ld bottom half 14 parts, along the cutaway view of C-C line.Overflow well 20, runner 22, rising head 24 and ingate 26 also have been demonstrated out.In this embodiment, when sprue core 100 is installed on the core print 128, the top of sprue core 100 can not extend on the roof of mo(u)ld bottom half 14.

This waters and emits device to be to use the cast hook tongue 10 of railcar of a kind of method.Because the design of pouring and riser systems and the relation of position, particularly runner 22 and overflow well 20 are placed in the below of hook tongue die cavity 16, make it allow motlten metal upwards to flow into rising head 24, and then upwards flow into hook tongue die cavity 16, thereby enter hook tongue die cavity 16, hook tongue die cavity 16 diapires 144 or near diapire 144, preferably be no more than 5 inches at off-hook tongue die cavity 16 diapires 144.In one embodiment, after metal flows out from ingate 26, before the diapire 144 that touches hook tongue die cavity 16, descend less than 3 " enter die cavity.This has reduced the turbulent flow in the metal, thereby reduced the amount of the air that may be carried by metal, and then has reduced the amount of the nonmetallic inclusion that may be caused by the air that carries.At last, this pouring and riser systems can be adjusted to and make ingate 26 enter hook tongue die cavity 16 in diapire 144.

Running gate system, sprue core and this application method can make a variety of changes.Many parts can use this casting design to be cast out, add more runner, ingate, sprue and cavity nothing but in system.Change hook tongue die cavity by difform die cavity, use this running gate system can also cast other parts.The sprue core can be used for polytype running gate system, is included in the system that does not have description herein.Quote in the text and size shown in the figure be exemplary, can adjust as required.In addition, can in system, use suitable size, shape and the suitable filtering material of any kind.Size of component shown in the figure only is to estimate that they can be adjusted as required, prepare the parts of different size.In addition, this pouring and riser systems can use the molding sand of any kind, includes but not limited to wet husky and self-hardening sand (or air collection sand).It can use with other moulding materials if necessary.

Therefore; the above only is the preferred embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; the present invention can have various changes and variation, all described any modifications within the spirit and principles in the present invention, is equal to replacement, improves and all should be included in protection scope of the present invention.

Claims

1. pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

Be arranged on the sprue in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould;

At least part of at least two ingates that are arranged in the described mould and are connected to described at least one rising head;

Be arranged at least two hook tongue mold cavities in the described mould; And

Wherein, described ingate is non-circular shape.

2. pouring and riser systems as claimed in claim 1 is characterized in that: described drag portion branch comprises the hook tongue die cavity that is complementary with the hook tongue die cavity that is arranged in the described mo(u)ld top half part.

3. pouring and riser systems as claimed in claim 2 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

4. pouring and riser systems as claimed in claim 1 is characterized in that: described ingate is for oval.

5. pouring and riser systems as claimed in claim 1, it is characterized in that: described ingate is tear drop shape.

6. pouring and riser systems as claimed in claim 1, it is characterized in that: the length of described ingate is less than 2 inches.

7. pouring and riser systems as claimed in claim 1, it is characterized in that: the cross-sectional area of each ingate is at least 14 square inches.

8. pouring and riser systems as claimed in claim 1, it is characterized in that: described mo(u)ld top half and mo(u)ld bottom half partly are the air-setting mould.

9. pouring and riser systems as claimed in claim 1, it is characterized in that: the capacity of described at least one rising head is at least 300 cubic inches.

10. pouring and riser systems as claimed in claim 1, it is characterized in that: the height of described at least one rising head is at least 12 inches.

11. pouring and riser systems as claimed in claim 1 is characterized in that: described ingate leads to the front of described hook tongue mold cavity.

12. pouring and riser systems as claimed in claim 1 also comprises:

Second rising head;

At least part of at least two ingates that are arranged in the described mould and are connected with described second rising head; And

Be arranged at least four hook tongue mold cavities in the described mould.

13. pouring and riser systems as claimed in claim 1 also comprises:

Second rising head;

Be arranged at least four hook tongue mold cavities in the described mould.

14. pouring and riser systems as claimed in claim 12 is characterized in that: described at least two ingates all partly are arranged on described mo(u)ld bottom half part.

15. pouring and riser systems as claimed in claim 12 also comprises the core with hollow body;

Set within it and have the top of first opening;

Bottom with an outer wall; And

Be arranged on the second and the 3rd opening that opposes mutually on the sidewall of described body.

16. pouring and riser systems as claimed in claim 15 is characterized in that: described first opening is complementary with sprue in the mo(u)ld top half part that is arranged on described mould.

17. pouring and riser systems as claimed in claim 16 is characterized in that: the shape of described exterior bottom wall is complementary with the overflow well that is arranged in the described mo(u)ld bottom half of described mould.

18. pouring and riser systems as claimed in claim 16 is characterized in that: the described second and the 3rd opening is used for leading to first and second rising heads that are arranged in the described mould.

19. pouring and riser systems as claimed in claim 14 is characterized in that: the described outer wall of the described bottom of described core comprises first extension disposed thereon.

20. pouring and riser systems as claimed in claim 15 is characterized in that: the shape of described first extension is complementary with opening in the described mo(u)ld bottom half part that is arranged on described mould.

21. pouring and riser systems as claimed in claim 16 is characterized in that: described first extension is cylindrical.

22. pouring and riser systems as claimed in claim 16 also comprises second extension on the described sidewall that is arranged on described core.

23. pouring and riser systems as claimed in claim 18 is characterized in that: described second extension is cylindrical groove.

24. pouring and riser systems as claimed in claim 1 is characterized in that: described sprue is taper.

25. pouring and riser systems as claimed in claim 1 is characterized in that: the internal diameter of described sprue is at least 1.4 inches.

26. pouring and riser systems as claimed in claim 1 is characterized in that: the cross-sectional area of described sprue is at least 1.5 square inches.

27. pouring and riser systems as claimed in claim 1 is characterized in that: described mo(u)ld top half and described mo(u)ld bottom half part constitute by sand, and the final gold dust of the foundry goods of a moulding belongs to ratio less than 2.5:1.

28. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

Be arranged on the sprue in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould;

Be arranged in the described mould and be connected at least two ingates of described at least one rising head;

Be arranged at least two hook tongue mold cavities in the described mould; And

Wherein, described ingate comprises a basal surface, and described basal surface and described at least one interruption-forming one obtuse angle that emits.

29. pouring and riser systems as claimed in claim 28 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

30. pouring and riser systems as claimed in claim 29 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

31. pouring and riser systems as claimed in claim 28 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

32. pouring and riser systems as claimed in claim 31 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

33. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould;

Be arranged in the described mould and be connected at least one ingate of described at least one rising head;

Be arranged at least one hook tongue mold cavity in the described mould; And

Wherein, described ingate is non-circular shape.

34. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould;

Be arranged at least one hook tongue mold cavity in the described mould; And

Wherein, described ingate is non-circular shape.

35. pouring and riser systems as claimed in claim 34 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

36. pouring and riser systems as claimed in claim 35 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

37. pouring and riser systems as claimed in claim 34 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

38. pouring and riser systems as claimed in claim 37 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

39. pouring and riser systems as claimed in claim 34 is characterized in that: described ingate is tear drop shape.

40. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould;

Be arranged at least one hook tongue mold cavity in the described mould; And

41. pouring and riser systems as claimed in claim 40 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

42. pouring and riser systems as claimed in claim 41 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

43. pouring and riser systems as claimed in claim 40 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

44. pouring and riser systems as claimed in claim 43 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

45. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part, described mo(u)ld bottom half partly has exterior bottom wall;

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part;

Be arranged at least one hook tongue die cavity in the described mould;

Be arranged at least one runner in the described mould, described at least one runner is connected to described rising head and has a diapire, and the distance of the described diapire of described rising head and the described exterior bottom wall of described mo(u)ld bottom half is less than the described diapire of described rising head and the distance of described exterior bottom wall.

46. pouring and riser systems as claimed in claim 45 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

47. pouring and riser systems as claimed in claim 46 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

48. pouring and riser systems as claimed in claim 45 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

49. pouring and riser systems as claimed in claim 48 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

50. pouring and riser systems as claimed in claim 48 also comprises the overflow well that is connected to described sprue, wherein, described at least one runner connects described overflow well to described rising head.

51. pouring and riser systems as claimed in claim 50, it is characterized in that: described overflow well comprises a diapire that is arranged in the described mo(u)ld bottom half, and the distance of the described diapire of described overflow well and the described exterior bottom wall of described mo(u)ld bottom half is less than the described diapire of described rising head and the distance of described exterior bottom wall.

52. pouring and riser systems as claimed in claim 50 is characterized in that: described at least one runner has the cross sectional form of non-circle.

53. pouring and riser systems as claimed in claim 50, also comprise at least one hook tongue die cavity, described hook tongue die cavity has a roof that is arranged on described mo(u)ld top half part and is arranged on a diapire of described mo(u)ld bottom half part, and described at least one hook tongue die cavity is connected to described rising head by at least one ingate.

54. pouring and riser systems as claimed in claim 50, also comprise the described at least one rising head of at least one connection at least one ingate of described at least one hook tongue die cavity, the major part of the cross section of described at least one ingate is placed under the symmetrical horizontal line of described at least one hook tongue die cavity.

55. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged at least one hook tongue die cavity in the described mould;

Be arranged at least one runner in the described mould, described at least one runner is connected to described rising head and has a diapire, and the distance of described diapire and described exterior bottom wall is less than the described diapire of described rising head and the distance of described exterior bottom wall.

56. pouring and riser systems as claimed in claim 55 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

57. pouring and riser systems as claimed in claim 56 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

58. pouring and riser systems as claimed in claim 55 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld bottom half part.

59. pouring and riser systems as claimed in claim 58 is characterized in that: described at least two ingates all partly are arranged in the described mo(u)ld top half part.

60. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

At least part of sprue that is arranged in the described mo(u)ld top half part;

Be arranged on the overflow well with a diapire in the described mo(u)ld bottom half part;

Be arranged at least one rising head in the described mould, described rising head has the diapire that is arranged in the described mo(u)ld bottom half part; And

The described diapire of described overflow well and the distance of described exterior bottom wall are less than the described diapire of described rising head and the distance of described exterior bottom wall.

61. pouring and riser systems as claimed in claim 60 also comprises at least one hook tongue die cavity that is connected to described at least one rising head by at least one ingate.

62. pouring and riser systems as claimed in claim 61, it is characterized in that: described hook tongue die cavity has roof and diapire, and described at least one ingate has a diapire, and the described diapire of described at least one ingate is positioned in 5 inches of described diapire of described hook tongue die cavity.

63. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

At least part of sprue that is arranged in the described mo(u)ld top half part;

At least one ingate that is connected to described rising head, described ingate are positioned on the described sidewall of described rising head, and are positioned in from the described diapire of described rising head about 2 inches.

64. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

The mo(u)ld top half of mould and mo(u)ld bottom half part;

Be arranged at least one rising head in the described mould;

Be arranged at least one hook tongue die cavity in described mo(u)ld top half and the mo(u)ld bottom half, and have a symmetrical horizontal line; And

Be arranged at least one ingate in the described mould, and be connected to described hook tongue die cavity so that described ingate is offset under the described symmetrical horizontal line of described hook tongue die cavity.

65. the method for a coin rail car car coupler knuckle, described method comprises step:

Mo(u)ld top half and the mo(u)ld bottom half part of mould are provided;

Sprue at least part of described mo(u)ld top half part that is arranged on described mould is provided;

At least one hook tongue die cavity with a diapire is provided, and described hook tongue die cavity is arranged in the described mo(u)ld top half and mo(u)ld bottom half of described mould;

At least one rising head that is arranged in the described mould is provided;

At least one ingate of the described rising head of link to described hook tongue die cavity is provided; And

Described motlten metal injected described hook tongue die cavity so that described motlten metal 5 inches of the described diapire that is positioned at described hook tongue die cavity to enter described hook tongue die cavity.

66. the method for a coin rail car car coupler knuckle, described method comprises:

Be provided at the cast in the mould that comprises at least one hook tongue die cavity;

Add metal to described at least one hook tongue die cavity so that described metal flows in described at least one hook tongue die cavity.

67. the method for a coin rail car car coupler knuckle, described method comprises:

Be provided at the cast in the mould that comprises at least one hook tongue die cavity, wherein,

Described cast comprises at least one ingate that leads to described hook tongue die cavity so that the motlten metal that enters described hook tongue die cavity descends less than 3 inches before the diapire of the described hook tongue die cavity of contact.

68. the method for a coin rail car car coupler knuckle, described method comprises:

Be provided at the cast in the mould that comprises at least one hook tongue die cavity, wherein said cast comprises and is arranged in the described mould and is positioned at least one ingate under the described hook tongue die cavity;

Fill described hook tongue die cavity with motlten metal.

69. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

One mo(u)ld top half;

One mo(u)ld bottom half;

One sprue core;

Described core has at least part of setting sprue wherein,

Described mo(u)ld bottom half partly has a diapire;

Described mo(u)ld bottom half partly has setting core print wherein, and the shape of described core print and described sprue core adapt;

Described mo(u)ld top half and mo(u)ld bottom half partly have the hook tongue die cavity part that is limited in accordingly wherein, and partially enclosed together the time when described mo(u)ld top half and mo(u)ld bottom half, described hook tongue die cavity partly aligns and forms at least one hook tongue die cavity;

Be arranged in the described mould and with the described diapire of described mo(u)ld bottom half part and compare at least one runner that its angle makes progress;

Be arranged in the described mould and be connected at least one rising head of described at least one runner; And

Connect described at least one rising head at least one ingate of described at least one hook tongue die cavity.

70. as the described pouring and riser systems of claim 69, it is characterized in that: described sprue core comprises:

Body with a sidewall;

Be arranged in first opening of the roof of described body;

Be arranged in second opening of the diapire of described body;

Pass described body and connect described first and the groove of described second opening; And

Be arranged at least one groove in the described diapire.

71. as the described pouring and riser systems of claim 70, also comprise at least one filter seat that is arranged in the described diapire.

72. as the described pouring and riser systems of claim 71, it is characterized in that: the shape of described at least one groove is complementary with the described runner that is arranged in the described mould.

73. as the described pouring and riser systems of claim 72, it is characterized in that: described filtering base is connected to described at least one groove.

74. as the described pouring and riser systems of claim 70, also comprise several grooves in the described diapire that is arranged on described sprue core.

75. as the described pouring and riser systems of claim 74, also comprise several filtering bases in the described diapire that is arranged on described sprue core.

76. as the described pouring and riser systems of claim 70, also comprise at least one groove in the described sidewall that is arranged on described sprue core.

77. as the described pouring and riser systems of claim 76, it is characterized in that: be arranged on described at least one groove in the described sidewall and be connected to described at least one groove in the described diapire that is arranged on described sprue core.

78. as the described pouring and riser systems of claim 77, it is characterized in that: be arranged on the part that described at least one groove in the described sidewall forms the vertical wall of described at least one rising head.

79. as the described pouring and riser systems of claim 78, also comprise at least one filtering base that is arranged in the described diapire.

80. as the described pouring and riser systems of claim 79, it is characterized in that: the shape of described at least one groove is complementary with the runner that is arranged in the described mo(u)ld bottom half part.

81. as the described pouring and riser systems of claim 80, it is characterized in that: described filtering base is connected to described at least one groove.

82. as the described pouring and riser systems of claim 81, also comprise several grooves in the described diapire that is arranged on described core.

83. as the described pouring and riser systems of claim 82, also comprise several filters in the described diapire that is arranged on described core.

84. as the described pouring and riser systems of claim 83, also comprise several grooves in the described sidewall that is arranged on described core

85. as the described pouring and riser systems of claim 84, it is characterized in that: when described core is placed in the described core print of described mould, be arranged in described several filter seat in the described diapire of described core some all be arranged on described mould in described several filters in any align, and be arranged in described several grooves in the described diapire of described core some be arranged on described mould in any of described several grooves align.

86. pouring and riser systems as claimed in claim 1 is characterized in that: described at least one rising head has a diapire, and the exit point of described sprue described diapire than described rising head in described mould is low.

87. pouring and riser systems as claimed in claim 1, it is characterized in that: described mo(u)ld bottom half partly has an end outer wall, described at least one rising head has a diapire, and described sprue has an exit point, the distance of the outer wall of the described end from the exit point of described sprue to described mo(u)ld bottom half than the outer wall of the described end from the diapire of described rising head to described mo(u)ld bottom half part apart from weak point

88. the method for a coin rail car car coupler knuckle, described method comprises:

Be provided at the cast in the mould, described mould comprises at least one hook tongue die cavity, at least one rising head, and is connected described at least one rising head at least one ingate of described at least one hook tongue die cavity;

With metal filled to the described hook tongue die cavity so that described metal flow into the point of described ingate from described rising head higher than the point that described motlten metal enters described rising head.

89. a pouring and riser systems that is used for coin rail car car coupler knuckle, described pouring and riser systems comprises:

One mould comprises mo(u)ld top half part and mo(u)ld bottom half part, and described mo(u)ld bottom half partly has an exterior bottom wall;

Be arranged on the sprue in the described mould;

Be arranged at least one runner in the described mould;

Be arranged in the described mould and be connected at least one rising head of described runner;

Be arranged in the described mould and be connected at least one hook tongue die cavity of described rising head by at least one ingate;

Wherein, described runner is shorter to the distance of the exterior bottom wall of described mo(u)ld bottom half than the bottom from described ingate to the distance of the described exterior bottom wall of described mo(u)ld bottom half with the tie point of described rising head.

90. as the described pouring and riser systems of claim 89, it is characterized in that: lack than minimum point to the distance of described exterior bottom wall from described ingate with peak to the distance of end outer wall that is connected of described rising head from described runner.

91. as the described pouring and riser systems of claim 69, also comprise at least one filter that is placed on described mo(u)ld bottom half part, described filter all is positioned under the diapire of described hook tongue die cavity.

92. as the described pouring and riser systems of claim 69, also comprise at least one filter, described filter is lower than the diapire of described hook tongue die cavity at the placement location of described mo(u)ld bottom half part.

93. as the described pouring and riser systems of claim 69, also comprise a filter, wherein the distance of the described diapire from described filter to described mo(u)ld bottom half is shorter to the distance of the described diapire of described mo(u)ld bottom half than the described diapire from described hook tongue die cavity.