Green sand casting mold and casting production process

Abstract

The invention provides a green sand casting mold and a casting production process, relates to the technical field of brake pad preparation equipment, and solves the technical problems that brake pad casting production can only be carried out in a small batch, the yield is low, and the cost is high. The green sand casting mold is characterized by comprising a mold plate with a mold pressing cavity, a pouring system and a mold core, wherein the mold core is arranged in the mold pressing cavity of the mold plate, and the pouring system communicates with the mold core; and the casting production process comprises the following steps of raw material smelting, automatic molten iron transferring, sand mixing, automatic pouring and separating, wherein the molding sand in the sand mixing step is completed by using the green sand casting mold. The green sand casting mold and the casting production process are used for casting brake pads, batch production of the brake pads can be carried out, the structure and quality requirements of brake pad products are met, and the problems that the special structure of the brake pads cannot be formed and the products are dispersed due to shrinkage are solved.

Description

technical field

[0001] The invention relates to the technical field of brake pad preparation equipment, in particular to a green sand casting mold and a casting production process. Background technique

[0002] In the braking system of a car, the brake pads are the key safety parts. The effect of the braking system is largely determined by the brake pads, so good brake pads are the protectors of people and cars. Pads need to be guaranteed by advanced manufacturing technology, so the manufacturing technology of brake pads is very important.

[0003] The applicant finds that the prior art has at least the following technical problems:

[0004] At present, in the field of precision casting technology, there is no good production technology to realize large-scale mass production of brake pad casting, which can only be produced in small batches, and the production efficiency is low; and in the existing brake pad casting production, due to the special structure of brake pads The...

Examples

Embodiment 1

[0083] The invention provides a green sand casting mold required in the brake pad preparation process, which mainly includes a mold plate 1, a pouring system 2, a guide column 4, and a mold core 3: the mold plate 1 includes a positive pressure plate 11 and Counter pressure plate 12; gating system 2, including sprue cup 21, runner 22, ingate 23 and riser 24, furthermore, sprue cup 21 is designed as a square of 67x90x103mm, the reason why it is large up and down, narrow in the middle, This is because the molten iron enters more smoothly and will not splash back; the main body of the vertical runner 222 in the runner 22 is divided into three sections, the bottom of each section is provided with an ingate 23, and the top is provided with a constriction. The internal cross-sections are isosceles trapezoidal structures of 15x30x30mm, 12.5x25x25mm and 10x20x20mm respectively, and the ingate 23 is a rectangle with a cross-sectional area of ​​4x40mm;

[0084] The guide column 4, includ...

Embodiment 2

[0094] The invention provides a green sand casting mold required in the brake pad preparation process, which mainly includes a mold plate 1, a pouring system 2, a guide column 4, and a mold core 3: the mold plate 1 includes a positive pressure plate 11 and Counter pressure plate 12; pouring system 2, including sprue cup 21, runner 22, ingate 23 and riser 24, further, sprue cup 21 is designed as light-duty anti-splash No. 3; The main body of the runner 222 is divided into three sections. The bottom of each section is provided with an ingate 23, and the top is provided with a constriction. A rectangle with an area of ​​4x40mm;

[0095] The guide column 4, including the chamfering part and the column body part, is designed to be 12 pieces in total, and is installed on the mold plate 1. Furthermore, the chamfering part is designed to be 45°, and the height is 3mm. The design diameter of the column body part is 30mm, and the height is 80mm , a total of 12 pieces are designed, whic...

technical field

[0001] The invention relates to the technical field of brake pad preparation equipment, in particular to a green sand casting mold and a casting production process. Background technique

[0002] In the braking system of a car, the brake pads are the key safety parts. The effect of the braking system is largely determined by the brake pads, so good brake pads are the protectors of people and cars. Pads need to be guaranteed by advanced manufacturing technology, so the manufacturing technology of brake pads is very important.

[0003] The applicant finds that the prior art has at least the following technical problems:

[0004] At present, in the field of precision casting technology, there is no good production technology to realize large-scale mass production of brake pad casting, which can only be produced in small batches, and the production efficiency is low; and in the existing brake pad casting production, due to the special structure of brake pads The...

Examples

Embodiment 1

[0083] The invention provides a green sand casting mold required in the brake pad preparation process, which mainly includes a mold plate 1, a pouring system 2, a guide column 4, and a mold core 3: the mold plate 1 includes a positive pressure plate 11 and Counter pressure plate 12; gating system 2, including sprue cup 21, runner 22, ingate 23 and riser 24, furthermore, sprue cup 21 is designed as a square of 67x90x103mm, the reason why it is large up and down, narrow in the middle, This is because the molten iron enters more smoothly and will not splash back; the main body of the vertical runner 222 in the runner 22 is divided into three sections, the bottom of each section is provided with an ingate 23, and the top is provided with a constriction. The internal cross-sections are isosceles trapezoidal structures of 15x30x30mm, 12.5x25x25mm and 10x20x20mm respectively, and the ingate 23 is a rectangle with a cross-sectional area of ​​4x40mm;

[0084] The guide column 4, includ...

Embodiment 2

[0094] The invention provides a green sand casting mold required in the brake pad preparation process, which mainly includes a mold plate 1, a pouring system 2, a guide column 4, and a mold core 3: the mold plate 1 includes a positive pressure plate 11 and Counter pressure plate 12; pouring system 2, including sprue cup 21, runner 22, ingate 23 and riser 24, further, sprue cup 21 is designed as light-duty anti-splash No. 3; The main body of the runner 222 is divided into three sections. The bottom of each section is provided with an ingate 23, and the top is provided with a constriction. A rectangle with an area of ​​4x40mm;

[0095] The guide column 4, including the chamfering part and the column body part, is designed to be 12 pieces in total, and is installed on the mold plate 1. Furthermore, the chamfering part is designed to be 45°, and the height is 3mm. The design diameter of the column body part is 30mm, and the height is 80mm , a total of 12 pieces are designed, whic...

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