CN102825219A

CN102825219A - Pouring system with gate runner

Info

Publication number: CN102825219A
Application number: CN2012102989921A
Authority: CN
Inventors: 吴文钤
Original assignee: ZHEJIANG JIALI WIND POWER TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG JIALI WIND POWER TECHNOLOGY Co Ltd
Priority date: 2012-08-21
Filing date: 2012-08-21
Publication date: 2012-12-19

Abstract

The invention discloses a pouring system with a gate runner and belongs to the fields of pouring systems. The existing pouring system adopts a dross filter so that a cost of dross filtration is high and a casting produces doped grid wires easily. The pouring system with a gate runner comprises an outer pouring gate, a sprue, the gate runner and ingates. The pouring system with the gate runner is characterized in that the top of the gate runner is provided with gates; front sides of the gates form slag retention spaces; and lower sides of the gates form a runner of which the cross area is reduced. The pouring system with the gate runner has the advantages that the gates can be directly made on a runner wood mold and be formed with a casting mold in molding sand feeding so that a dross filter purchase cost is reduced and economic benefits are obvious; a molding sand feeding process is more convenient than dross filter arrangement so that popularization and utilization are promoted; and good slag blocking effects are obtained only through control of gate height and a distance between at least two gates, wherein the control of gate height and a distance between at least two gates is carried out by a process designer according to demands.

Description

The running gate system that has the gate cross gate

Technical field

The invention belongs to running gate system, specifically is a kind of running gate system that has the gate cross gate, is guaranteed the degree of purity of the iron liquid of inflow die cavity stopping of slag through gate.

Background technology

General running gate system is made up of the pouring basin, sprue, cross gate, the ingate that are communicated with successively, and iron liquid is poured into from pouring basin, flows into casting mold (die cavity) through sprue, cross gate, ingate and solidifies back formation foundry goods.Obtain high-quality foundry goods, necessarily require cross gate to have powerful pushing off the slag effect, make high pure iron flow go into casting mold, can prevent that foundry goods from causing useless because of producing casting flaws such as cinder hole, slag inclusion.Thereby the casting quality that guarantees has reduced percent defective, has improved economic benefit, has been successfully applied on the large-scale wind electricity foundry goods more than 10 tons at present, and effect is fairly obvious.

The foundry goods that technical quality is had relatively high expectations does not especially allow foundry goods such as wind-powered electricity generation class, oil cylinder class, compressor casing class of repair welding reuse etc. to casting flaw.Common pushing off the slag measure is more common in and in cross gate, is established skim strainer, strainer core carries out filter residue and obtains pure iron liquid; But every of the price of strainer core needs 30-50 unit; Every of import strainer core then needs 120-180 unit, and expense is higher, has increased the production cost of foundry goods.

On the other hand, during as if employing strainer core filter residue, 1340 ℃ iron liquid thrusts through easy grid silk in the strainer core is softened of strainer core, and the softening grid silk that thrusts can flow into casting mold with iron liquid, makes the foundry goods generation be mingled with the grid silk and cause useless.

Summary of the invention

The technical problem that the present invention will solve and the technical assignment of proposition are to overcome high, the easy defectives such as being mingled with the grid silk that produces of foundry goods of cost when having running gate system employing strainer core filter residue now, and a kind of running gate system that has the gate cross gate is provided.

For achieving the above object; The running gate system that has the gate cross gate of the present invention comprises pouring basin, sprue, cross gate, the ingate that is communicated with successively; It is characterized in that: the top of said cross gate is provided with gate; The front side of said gate forms slag and keeps somewhere the space, and the downside of said gate forms the cross gate of reduced cross-sectional area.

As the optimization technique means: described gate is a plurality of and distributes along the bearing of trend of said cross gate.Described gate for from the top of said cross gate to the ridge shape body that extends below.

The invention has the beneficial effects as follows:

1. gate can directly be made on the cross gate wooden model, when sand is put in moulding, forms with casting mold to get final product, and can practice thrift the expense of buying strainer core, so economic benefit is obvious;

2. gate can directly be made on the cross gate wooden model; It is all very convenient that process operations such as sand are put in moulding; Unlike placing the such trouble of strainer core; The technological design personnel are beneficial to and apply, as long as can reach pushing off the slag effect preferably according to the height of demand regulating gate and spacing when above (two and two).

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

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

Label declaration among the figure: the 1-pouring basin, the 2-sprue, the 3-cross gate, the 4-ingate, the 5-gate, the 6-slag is kept somewhere space, the cross gate of 7-reduced cross-sectional area.

The specific embodiment

Below in conjunction with Figure of description the present invention is further specified.

The running gate system that has the gate cross gate of the present invention; Like Fig. 1, shown in 2; It comprises pouring basin 1, sprue 2, cross gate 3, the ingate 4 that is communicated with successively; The top of cross gate 3 is provided with gate 5, and the front side of gate 5 forms slag and keeps somewhere space 6, and the downside of gate 5 forms the cross gate 7 of reduced cross-sectional area.Further, gate 5 is a plurality of and distributes along the bearing of trend of cross gate.Gate 5 for from the top of cross gate to the ridge shape body that extends below.

Gate 5 of the present invention can directly be made at the cross gate wooden model; When sand is put in moulding, form and get final product with casting mold; Can practice thrift the expense of buying strainer core, obviously (to produce one heavily about 12 tons wind power hub foundry goods is example to economic benefit, needs 10-12 sheet strainer core during with strainer core (foamed ceramics type) filter residue; The present invention's employing has the gate cross gate does not then need strainer core, reduces production costs greatly); Simultaneously; It is all very convenient to make moulding put process operations such as sand again; Unlike placing the such trouble of strainer core, be beneficial to and apply, as long as the technological design personnel can reach pushing off the slag effect preferably according to the height of demand regulating gate and spacing when above (two and two).

In casting process, when the iron flow that has slag during through cross gate 3 (direction of arrow is represented the flow direction of iron liquid among the figure), the slag in the iron liquid slowly floats because of light specific gravity, is lived by lock 5 door shields then and is trapped in slag and keeps somewhere space 6.If the slag in the iron liquid is more; Then can increase the quantity of gate through the length that prolongs cross gate; Slag in the iron liquid stops through a lot of; Make the higher iron flow of degree of purity go into die cavity at last, thereby obtain qualified casting, eliminated foundry goods and caused useless owing to casting flaws such as producing slag inclusion, cinder hole.

Claims

1. the running gate system that has the gate cross gate; Comprise the pouring basin (1), sprue (2), cross gate (3), the ingate (4) that are communicated with successively; It is characterized in that: the top of said cross gate (3) is provided with gate (5); The front side of said gate (5) forms slag and keeps somewhere space (6), and the downside of said gate (5) forms the cross gate (7) of reduced cross-sectional area.

2. the running gate system that has the gate cross gate according to claim 1 is characterized in that: described gate (5) distributes for the bearing of trend of a plurality of and the said cross gate in edge (3).

3. the running gate system that has the gate cross gate according to claim 1 is characterized in that: described gate (5) for from the top of said cross gate (3) to the ridge shape body that extends below.