CN203184589U

CN203184589U - Skim gate for casting

Info

Publication number: CN203184589U
Application number: CN 201320236329
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: 2013-09-11
Anticipated expiration: 2023-05-04

Abstract

The utility model discloses a skim gate for casting, which is high in manufacturing efficiency and incapable of causing wasting during casting, does not need an extra fixing device and does not lose a slag-stopping action during casting. The skim gate comprises a gate main body (1) of which the bottom is provided with a slot arranged along the width direction of the gate main body (1); a partition plate part (7) integrated with the gate main body (1) is arranged above the bottom of the slot; at least one circulation unit (8) is embedded between the partition plate part (7) and the bottom of the slot; each circulation unit (8) is provided with a circulation hole (11) for communicating a first drainage slot (9) with a second drainage slot (10); adjacent circulation units (8) are fitted with each other or an interval for allowing iron liquid to flow by is arranged between adjacent circulation units (8); and each circulation unit (8) is used for controlling the flow rate of the iron liquid flowing from the first drainage slot (9) to the second drainage slot (10).

Description

The casting skim gate

Technical field

The utility model relates to casting technology field, specifically is a kind of casting skim gate.

Background technology

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

The utility model content

The technical problems to be solved in the utility model is not lose the casting skim gate of pushing off the slag effect in the time of can not causing iron liquid to waste, need not extra fixture, cast when a kind of make efficiency height, cast are provided.

The technical solution of the utility model is, the utility model casting skim gate, it comprises gate body, the gate body bottom is provided with the groove that arranges along the gate body width, the top of the bottom of groove is provided with the partition part in aggregates with gate body, partition part is separated into gate body inside and pours into the chamber, what be communicated with sprue flows to the chamber, be embedded with at least one flow-through cell between the bottom of partition part and groove, each flow-through cell distributes groove to be separated into first drainage trough in regular turn along the length direction of groove, second drainage trough, each flow-through cell is provided with for being communicated with first drainage trough, the opening of second drainage trough, adjacent flow-through cell paste mutually or adjacent flow-through cell between the interval of flowing through for iron liquid is set, flow-through cell is used for the flow that control iron liquid flows to second drainage trough through first drainage trough.

The utility model operation principle is, iron liquid pours into from pouring into the chamber, then through first drainage trough, opening, at interval, second drainage trough flows to the chamber, perhaps adjacent flow-through cell pastes mutually and not at interval, only is opening, flows into the next stage runner through sprue again.

After adopting said structure, the utility model compared with prior art, have the following advantages: because partition part and gate body are an integral body, there is not slag plate, fixture, the flow of iron liquid is controlled by flow-through cell simultaneously, so the utility model casting has the make efficiency height with skim gate, can not cause the waste of iron liquid during cast, need not extra fixture, can not lose the advantage of pushing off the slag effect during cast, in addition, the utility model can be according to the diameter of sprue, make through first drainage trough by the quantity of regulating flow-through cell, flow-through cell, second drainage trough flows to the flow of the iron liquid in chamber to be stablized with the ratio maintenance between the two of the flow of the iron liquid that flows out through sprue, thereby improves the efficient of pushing off the slag.

As improvement, the height that flows to the chamber is equal to or greater than five times of diameter of described sprue, and like this, iron liquid waters and fashionablely can not produce whirlpool flowing to end, thereby the problem of avoiding whirlpool to bring the bits of gas and come-up into die cavity more is conducive to guarantee the quality of iron liquid.

As improvement, the volume that is used for holding iron liquid that pours into the chamber be equal to or greater than flow to the chamber be used for hold iron liquid the twice of volume, like this, the liquid level that pours into the iron liquid in chamber just can not be low excessively, can be full of down gate better, more is conducive to guarantee the quality of casting.

As improvement, the span of the ratio of the flow area of the flow area of first drainage trough and second drainage trough is 1:2.5～3.5, be equivalent to a horn mouth like this, it is big to flow to chamber one side, the second drainage trough sectional area, the flow velocity of molten iron reduces, and the impurity come-up and the molten iron that are conducive in the molten iron steadily enter sprue.

Description of drawings

Fig. 1 is the structural representation that skim gate is used in the prior art casting.

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

Fig. 3 is the structural representation that skim gate is used in the utility model casting.

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

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

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

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

The utility model casting skim gate, it comprises gate body 1, gate body 1 bottom is provided with the groove that arranges 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, partition part 7 is separated into gate body 1 inside and pours into chamber 2, what be communicated with sprue 3 flows to chamber 4, be embedded with at least one flow-through cell 8 between the bottom of partition part 7 and groove, each flow-through cell 8 distributes groove to be separated into first drainage trough 9 in regular turn along the length direction of groove, second drainage trough 10, each flow-through cell 8 is provided with for being communicated with first drainage trough 9, the opening 11 of second drainage trough 10, adjacent flow-through cell 8 paste mutually or adjacent flow-through cell 8 between the interval of flowing through for iron liquid is set, flow-through cell 8 is used for the flow that control iron liquid flows to second drainage trough 10 through first drainage trough 9.

Partition part 7 is shaped to a whole prior art that adopts with gate body 1 and get final product, namely at first makes corresponding mould and sandbox, moulding and pre-buried flow-through cell 8 then, and fireproof coating is brushed in molding after the resin sand sclerosis at last again.

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

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

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

Claims

1. casting skim gate, it comprises gate body (1), it is characterized in that, gate body (1) bottom is provided with the groove that arranges 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), partition part (7) is separated into gate body (1) inside and pours into chamber (2), what be communicated with sprue (3) flows to chamber (4), be embedded with at least one flow-through cell (8) between the bottom of partition part (7) and groove, each flow-through cell (8) distributes groove to be separated into first drainage trough (9) in regular turn along the length direction of groove, second drainage trough (10), each flow-through cell (8) is provided with for being communicated with first drainage trough (9), the opening (11) of second drainage trough (10), adjacent flow-through cell (8) paste mutually or adjacent flow-through cell (8) between the interval of flowing through for iron liquid is set, flow-through cell (8) is used for the flow that control iron liquid flows to second drainage trough (10) through first drainage trough (9).

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

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

4. casting skim gate according to claim 1 is characterized in that, the span of the ratio of the flow area of the flow area of first drainage trough (9) and second drainage trough (10) is 1:2.5～3.5.