CN205165749U - Bimetal drum the gating system - Google Patents

Abstract

The utility model relates to a bimetal drum the gating system, a serial communication port, including being tubaeform sprue and being annular cross gate rather than the sub -unit connection, the upper right side of cross gate is equipped with waters in rather than being connected and being annular evenly distributed along the cross gate. The beneficial effects of the utility model are that: owing to adopted the ring gate to introduce the molten iron through the interior tangent line that waters, the molten iron temperature in the die cavity is even, and the steel sheet fuses, and the brake rim tissue is even, and the performance improves.

Description

A bimetallic drum pouring system

technical field

The utility model relates to a pouring system, in particular to a bimetallic drum pouring system, which belongs to the field of auto parts processing.

Background technique

The bimetallic drum is produced with a horizontal molding line. First, the upper and lower sand molds are made, and then the positioning pins are fixed on the lower sand mold. The lower steel plate is guided by the middle hole of the steel plate to accurately position the steel plate and lowered into the lower mold to ensure Keep the mold concentric with the steel plate without bumping the lower sand mold, then lift the positioning pin, close the box, and introduce high-temperature molten iron above 1400°C into the cavity between the upper and lower sand molds through the pouring system, so that the high-temperature molten iron is in contact with the steel plate to achieve fusion good purpose.

In the gating system of the prior art (see accompanying drawings 1 and 2), the molten iron enters the gating system through the first sprue 11 and then is introduced into the mold between the upper and lower sand molds through a gate 41 through the second sprue 31 along the runner 21. Cavity, the gate part of the casting is prone to overheating, the structure is uneven, the outer wall of the casting is thin, it is difficult to feed through the riser, and the casting is prone to defects such as shrinkage and porosity.

Utility model content

The utility model provides a bimetallic drum pouring system aiming at the deficiencies of the prior art.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A bimetallic drum pouring system is characterized in that it includes a trumpet-shaped sprue and a ring-shaped runner connected to its lower part. The upper right of the runner is provided with a Uniformly distributed tangential ingates in the form of a ring.

The beneficial effects of the utility model are: due to the adoption of the annular runner and the tangential introduction of the molten iron through the inner runner, the temperature of the molten iron in the cavity is uniform, the fusion of the steel plates is good, the structure of the brake drum is uniform, and the performance is improved.

Description of drawings

Fig. 1 is the prior art gating system structural representation;

Fig. 2 is the A-A direction view of the pouring system structure in the prior art;

Fig. 3 is the overall structural diagram of the pouring system of the present invention;

Fig. 4 is a side view of the overall structure of the pouring system of the present invention;

Fig. 5 is a schematic diagram of the molten iron pouring process of the pouring system of the present invention;

Fig. 6 is a schematic diagram of the overall structure of the gating system of the present invention during use.

In Figures 1 to 6, 1. sprue; 2. runner; 3. inner runner; 11. first sprue; 21. runner; 31. second sprue; 41. gate

detailed description

The principles and features of the present utility model are described below in conjunction with examples, which are only used to explain the utility model, and are not used to limit the scope of the utility model.

A bimetallic drum casting system, including a trumpet-shaped sprue 1 and a ring-shaped runner 2 connected to its lower part, the upper right of the runner 2 is provided with a Tangential inrunners 3 that are evenly distributed in the form of a ring.

The working process of the above gating system is as follows:

1) First make the upper and lower sand molds, and then fix the positioning pins on the lower sand mold, as shown in Figure 5, the lower steel plate is guided by the middle hole of the steel plate to accurately position the steel plate, and then lowered into the lower model to ensure that there is no collision during the lower steel plate The lower sand mold, the sand mold cavity is concentric with the steel plate;

2) Lift the positioning pin and close the box;

3) The high-temperature molten iron above 1400°C is introduced into the gating system through the sprue 1. After the molten iron is filled with the annular runner 2, it is evenly introduced into the cavity between the upper and lower sand molds through the tangential ingate 3 at the same time, so that the high-temperature molten iron and the steel plate Contact to achieve good fusion;

4) After the molding and cooling of the casting in the cavity is completed, remove the upper and lower sand molds, and the casting is completed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (1)

1. A bimetallic drum pouring system, characterized in that it comprises a trumpet-shaped sprue and an annular runner connected to its lower part, the upper right of the runner is provided with a sprue connected to it and along the transverse sprue. The sprue is a tangential inner sprue with a circular uniform distribution.