CN102861876A

CN102861876A - Device of direct pouring gate substitution feeder head in cast iron piece pouring system

Info

Publication number: CN102861876A
Application number: CN2012103807511A
Authority: CN
Inventors: 王晓妍; 杨自勇; 何守岭; 王东会
Original assignee: SHANXI TANGRONG MOTOR PARTS MANUFACTURING GROUP Ltd
Current assignee: SHANXI TANGRONG MOTOR PARTS MANUFACTURING GROUP Ltd
Priority date: 2012-10-10
Filing date: 2012-10-10
Publication date: 2013-01-09

Abstract

The invention relates to a device of a direct pouring gate substitution feeder head in a cast iron piece pouring system. A direct pouring gate (3) integrating the direct pouring gate and the feeder head in the prior art is arranged under a ceramic filtering net (2). The pouring feeder head system omits a feeder head unit in design, the direct pouring gate and the feeder head are combined into one unit, and high temperature molten iron of the direct pouring gate is utilized to feed the cast piece. The device reduces feeder head size in the common design, improves process product rate, and reduces secondary melting of molten iron. The device can effectively utilize sand box area, and reduces dosage of casting sand. The ceramic filtering net is arranged under a pouring cup and can effectively avoid impurities in the molten iron.

Description

Sprue substitutes the device of rising head in a kind of Gating System for Iron Casting

Technical field

The present invention relates to a kind of running gate system, be specifically related to the device of the alternative rising head of sprue in a kind of Gating System for Iron Casting.

Background technology

The design of conventional running and feeding system comprises: cup, sprue, cross gate, ingate, when foundry goods needs the molten iron feeding, generally design again one and carry out feeding to several rising heads, (as shown in Figure 1 and Figure 2), but the shortcoming of common process design is: product yield is lower, accessory system cup, sprue, cross gate, ingate, rising head have consumed a large amount of molten iron outside the foundry goods body, and the molten iron waste is serious, have increased the secondary fusion of too much molten iron; Sandbox need have enough vacant positions, to place rising head, has not only increased the size of sandbox, the increase that has brought simultaneously sand using amount; Owing to having increased the rising head unit, operation difficulty and intensity have relatively been increased in the modeling process.

Summary of the invention

The present invention is in order to solve the problems of the technologies described above, and then provides sprue in a kind of Gating System for Iron Casting to substitute the device of rising head, and this device has been cancelled the rising head unit in gating and riser system design, and sprue and rising head are merged into a unit.

Technical scheme of the present invention: sprue substitutes the device of rising head in a kind of Gating System for Iron Casting, it comprises: cup 1, foam ceramic filter 2, sprue 3, ingate 4, foundry goods 5, cup 1 below is provided with foam ceramic filter 2, the below of foam ceramic filter 2 is provided with the sprue 3 that former sprue of the prior art and rising head are merged into a single whole, and sprue 3 is connected with ingate 4, and ingate 4 is connected with foundry goods 5.The area of the sprue 3 described in this device will be 1.2-3.5 times of sprue in the former running gate system, and this device also includes cross gate 6, and cross gate 6 can be determined according to the number of ingate.

The present invention compared with prior art has following beneficial effect: cancelled the rising head unit in the gating and riser system design of the present invention, sprue and rising head are merged into a unit; Utilize the high temperature liquid iron of sprue that foundry goods is carried out feeding, can reduce the rising head volume in the conventional design; Improve product yield, reduced the secondary fusion of molten iron.Can effectively utilize the sandbox area, thereby reduce the consumption of molding sand; Foam ceramic filter is set below cup, can effectively avoids entering of impurity in the molten iron.

Description of drawings

Fig. 1 is the structure chart of conventional pouring and riser systems;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is structural representation of the present invention;

Fig. 4 is the top view of Fig. 3;

Fig. 5 is the structural representation of embodiment 2;

Fig. 6 is the top view of Fig. 5;

Fig. 7 is the structure chart after embodiment 2 adopts the present invention;

Fig. 8 is the top view of Fig. 7.

The specific embodiment

Embodiment 1

The S. G. Cast Iron Wheel Hub sprue substitutes Feeder Design: this product material is QT450-10, former pouring and riser systems structure as shown in Figure 1, 2, spray weight 24Kg, pouring and riser systems weight 8.7 Kg, product yield are 24/(24+8.7)=73.4%.

Adopt the device of the alternative rising head of sprue in a kind of Gating System for Iron Casting of the present invention, it comprises: cup 1, foam ceramic filter 2, sprue 3, ingate 4, foundry goods 5, cross gate 6, cup 1 below is provided with foam ceramic filter 2, and the below of foam ceramic filter 2 is provided with the sprue 3 that former sprue of the prior art and rising head are merged into a single whole, sprue 3 is connected with ingate 4, ingate 4 is connected with foundry goods 5, simultaneously as required, 2 ingates is set in this running gate system, the entrance of cross gate 6 is connected with sprue 3, and outlet is along the distribution arrangement of ingate 2.The area of the sprue 3 described in this device is by original 1133.5mm ²Increase to 1962.5 mm ², the sprue area is increased to original 1.7 times, and concrete structure is shown in Fig. 3,4, pouring and riser systems weight 5.6 Kg after the improvement, product yield is 24/(24+5.6)=81.1%, improved 7.7% than original, meet the demands fully through dissecting foundry goods inside.

Embodiment 2

Gray iron brake drum sprue substitutes Feeder Design: this product material is HT250, and former pouring and riser systems structure is shown in Fig. 5,6, and spray weight 38.5Kg, pouring and riser systems weight 13 Kg, product yield are 38.5/(38.5+13)=74.8%.

Adopt the device of the alternative rising head of sprue in a kind of Gating System for Iron Casting of the present invention, it comprises: cup 1, foam ceramic filter 2, sprue 3, ingate 4, foundry goods 5, cross gate 6, cup 1 below is provided with foam ceramic filter 2, the below of foam ceramic filter 2 is provided with the sprue 3 that former sprue of the prior art and rising head are merged into a single whole, and sprue 3 is connected with ingate 4, and ingate 4 is connected with foundry goods 5, the area of the sprue 3 described in this device increases to 2826mm2 by original 961.6mm2, the sprue area is increased to original 2.9 times, concrete structure such as Fig. 7, shown in 8: pouring and riser systems weight 8.9 Kg after the improvement, product yield is 38.5/(38.5+8.9)=81.2%, improve 6.4% than original product yield, foundry goods inside meets the demands fully.

Claims

1. sprue substitutes the device of rising head in the Gating System for Iron Casting, it is characterized in that: the below of this mounting ceramics screen pack (2) is provided with the sprue (3) that former sprue of the prior art and rising head are merged into a single whole.

2. sprue substitutes the device of rising head in a kind of Gating System for Iron Casting according to claim 1, and it is characterized in that: this device also includes cross gate (6), and cross gate (6) can be determined according to the number of ingate.

3. sprue substitutes the device of rising head in a kind of Gating System for Iron Casting according to claim 1, it is characterized in that: the area of described sprue (3) will be sprue in the former running gate system 1.2-3.5 doubly.