CN103231020B

CN103231020B - Slag blocking sprue for casting

Info

Publication number: CN103231020B
Application number: CN201310162532.0A
Authority: CN
Inventors: 刘建东; 徐兰奎; 陈建军
Original assignee: RIYUE HEAVY INDUSTRY CO LTD
Current assignee: RIYUE HEAVY INDUSTRY CO LTD
Priority date: 2013-05-04
Filing date: 2013-05-04
Publication date: 2015-04-29
Anticipated expiration: 2033-05-04
Also published as: CN103231020A

Abstract

The invention discloses a slag blocking sprue for casting, which is high in manufacturing efficiency, can not cause waste of iron liquor, does not need additional fixed devices and can not lose the slag-blocking action in casting. The slag blocking sprue comprises a sprue main body (1), wherein the bottom part of the sprue main body (1) is provided with a groove which is arranged along the width direction of the sprue main body (1); a baffle part (7) which is integrated with the sprue main body (1) is arranged above the bottom part of the groove; at least one flowing unit (8) is buried between the baffle part (7) and the bottom part of the groove; all the flowing units (8) are provided with flowing holes (11) for communicating a first flow guiding groove (9) and a second flow guiding groove (10); the adjacent flowing units (8) are attached or a gap for flowing of the iron liquid is arranged between the adjacent flowing units (8); and the flowing units (8) are used for controlling the flowing rate of the iron liquid from the first flow guiding groove (9) to the second flow guiding groove (10).

Description

Casting skim gate

Technical field

The present invention relates to casting technology field, is specifically a kind of casting skim gate.

Background technology

Fig. 1,2 is depicted as prior art casting skim gate, for split type or perhaps assembled, namely with a slag plate 5.1 by gate body 1.1 interior separation become pour into chamber 2.1, be communicated with sprue 3.1 flow to chamber 4.1, slag plate 5.1 is fixedly connected with gate body 1.1 through fixture 6.1, there is following shortcoming in such casting skim gate: 1. make efficiency is low, namely need first to make gate body, slag plate, fixture respectively, after carrying out, again slag plate is assembled in gate body, then fixes by fixture; 2., due to after gate body and slag plate be assembled together, still there is gap in the cooperation place between gate body and slag plate, so part iron liquid will enter gap during cast, causes iron liquid to waste; 3. need extra fixture, because gate body and slag plate are not one, need to make extra fixture and slag plate is fixed in gate body.4. slag plate may float, thus causes losing pushing off the slag effect, if namely fixture lost efficacy, then in casting process, slag plate can at the buoyancy float downward of iron liquid, and whole like this cast gate will lose pushing off the slag effect.

Summary of the invention

The technical problem to be solved in the present invention is, provide that a kind of make efficiency is high, cast time iron liquid can not be caused to waste, the casting skim gate of pushing off the slag effect can not be lost without the need to when extra fixture, cast.

Technical scheme of the present invention is, the present invention casts with skim gate, it comprises gate body, the groove arranged along gate body width is provided with bottom gate body, the top of the bottom of groove is provided with the partition part in aggregates with gate body, gate body interior separation becomes to pour into chamber by partition part, what be communicated with sprue flows to chamber, at least one flow-through cell is embedded with between partition part and the bottom of groove, along the length direction of groove, each flow-through cell sequentially distributes that groove is separated into the first drainage trough, second drainage trough, each flow-through cell is provided with for being communicated with the first drainage trough, the opening of the second drainage trough, adjacent flow-through cell is affixed or arranges between adjacent flow-through cell the interval flow through for iron liquid, the flow that flow-through cell flows to the second drainage trough through the first drainage trough for controlling iron liquid.

Operation principle of the present invention is, iron liquid pours into from pouring into chamber, and then flow to chamber through the first drainage trough, opening, interval, the second drainage trough, or adjacent flow-through cell being affixed and not having interval, is only opening, then flows into next stage runner through sprue.

After adopting said structure, the present invention compared with prior art, have the following advantages: because partition part and gate body are an entirety, there is not slag plate, fixture, the flow of iron liquid is controlled by flow-through cell simultaneously, so casting skim gate of the present invention to have make efficiency high, iron liquid can not be caused during cast to waste, without the need to extra fixture, the advantage of pushing off the slag effect can not be lost during cast, in addition, the present invention can according to the diameter of sprue, make through the first drainage trough by regulating the quantity of flow-through cell, flow-through cell, the flow that second drainage trough flows to the iron liquid in chamber keeps stable with the ratio between the two of the flow of the iron liquid flowed out through sprue, thus improve the efficiency of pushing off the slag.

As improvement, the height flowing to chamber is equal to or greater than five times of the diameter of described sprue, and like this, iron liquid waters and fashionablely can not produce whirlpool flowing to end, thus avoids whirlpool to bring the bits of gas and floating the problem of die cavity into, is more conducive to the quality ensureing iron liquid.

As improvement, pour into chamber for the volume holding iron liquid be equal to or greater than flow to chamber for hold iron liquid the twice of volume, like this, the liquid level pouring into the iron liquid in chamber would not be too low, can be full of down gate better, is more conducive to the quality ensureing casting.

As improvement, the span of the ratio of the flow area of the first drainage trough and the flow area of the second drainage trough is 1:2.5 ~ 3.5, be equivalent to a horn mouth like this, flow to side, chamber second drainage trough sectional area large, the flow velocity of molten iron reduces, and the impurity be conducive in molten iron floats and molten iron steadily enters sprue.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art casting skim gate.

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Fig. 3 is the structural representation of casting skim gate of the present invention.

Fig. 4 is that the B-B of Fig. 3 is to sectional view.

Shown in Fig. 1,2,1.1, gate body, 2.1, pour into chamber, 3.1, sprue, 4.1, flow to chamber, 5.1, slag plate, 6.1, fixture.

Shown in Fig. 3,4,1, gate body, 2, pour into chamber, 3, sprue, 4, flow to chamber, 7, partition part, 8, flow-through cell, the 9, first drainage trough, the 10, second drainage trough, 11, opening.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described.

The present invention casts with skim gate, it comprises gate body 1, the groove arranged along gate body 1 width is provided with bottom gate body 1, the top of the bottom of groove is provided with the partition part 7 in aggregates with gate body 1, gate body 1 interior separation becomes to pour into chamber 2 by partition part 7, what be communicated with sprue 3 flows to chamber 4, at least one flow-through cell 8 is embedded with between partition part 7 and the bottom of groove, each flow-through cell 8 sequentially distributes groove to be separated into the first drainage trough 9 along the length direction of groove, second drainage trough 10, each flow-through cell 8 is provided with for being communicated with the first drainage trough 9, the opening 11 of the second drainage trough 10, adjacent flow-through cell 8 is affixed or arranges between adjacent flow-through cell 8 interval flow through for iron liquid, the flow that flow-through cell 8 flows to the second drainage trough 10 through the first drainage trough 9 for controlling iron liquid.

Partition part 7 and gate body 1 are shaped to one and overallly adopt prior art, namely first make corresponding mould and sandbox, then moulding pre-buried flow-through cell 8, then resin sand hardens molding, finally brush fireproof coating afterwards.

The height flowing to chamber 4 is equal to or greater than five times of the diameter of described sprue 3, is five times in this example.

Pour into chamber 2 for the volume holding iron liquid be equal to or greater than flow to chamber 4 for hold iron liquid the twice of volume, be twice in this example.

The span of the ratio of the flow area of the first drainage trough 9 and the flow area of the second drainage trough 10 is 1:2.5 ~ 3.5, is 1:2.5 in this example.

Claims

1. a casting skim gate, it comprises gate body (1), it is characterized in that, gate body (1) bottom is provided with the groove arranged along gate body (1) width, the top of the bottom of groove is provided with the partition part (7) in aggregates with gate body (1), gate body (1) interior separation becomes to pour into chamber (2) by partition part (7), what be communicated with sprue (3) flows to chamber (4), at least one flow-through cell (8) is embedded with between partition part (7) and the bottom of groove, each flow-through cell (8) sequentially distributes groove to be separated into the first drainage trough (9) along the length direction of groove, second drainage trough (10), each flow-through cell (8) is provided with for being communicated with the first drainage trough (9), the opening (11) of the second drainage trough (10), adjacent flow-through cell (8) is affixed or arranges between adjacent flow-through cell (8) interval flow through for iron liquid, the flow that flow-through cell (8) flows to the second drainage trough (10) through the first drainage trough (9) for controlling iron liquid, the span of the ratio of the flow area of the first drainage trough (9) and the flow area of the second drainage trough (10) is 1:2.5 ~ 3.5.

2. casting skim gate according to claim 1, is characterized in that, the height flowing to chamber (4) is equal to or greater than five times of the diameter of described sprue (3).

3. casting skim gate according to claim 1, is characterized in that, pours into the twice being equal to or greater than the volume for holding iron liquid flowing to chamber (4) for the volume holding iron liquid in chamber (2).