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Novel infiltration treatment process for die-casting plate

A treatment process and plate technology, which is applied in the field of new impregnation treatment process for die-casting plates, can solve problems such as micropores and poor effects, and achieve the effects of improving compactness, promoting penetration, and preventing backflow

Active Publication Date: 2021-07-13
湖南鑫泉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the deficiency in the die-casting process, the existing die-casting sheet will inevitably have defects such as micropores, so it is necessary to fill the micropores by impregnation treatment. In the prior art, vacuuming is generally used to promote the impregnation solution. The penetration and filling effect is better, but the effect is poor for die-casting plates with dense and large sand holes

Method used

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  • Novel infiltration treatment process for die-casting plate
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Examples

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Effect test

Embodiment 1

[0046] see figure 1 , a novel impregnation treatment process for die-casting plates, comprising the following steps:

[0047] S1. Use high-pressure water to spray onto the surface of the die-casting plate to remove the dirt attached to the surface, then dry and polish;

[0048] S2. Degrease and degrease the die-casting plate, rinse it twice with clean water, and dry it with heated oxygen in a closed space;

[0049] S3. After drying, a magnetic field is applied to one side of the surface of the die-casting sheet, and the other side is covered with reduced iron powder, and the reduced iron powder enters the micropores on the surface of the die-casting sheet under the action of the magnetic field;

[0050] S4. Cover the surface of both sides of the die-casting plate with a double-effect film and take it out of the closed space. After standing still for 20 minutes, start the magnetic field again, and at the same time inject impregnating liquid into the double-effect film to trigg...

Embodiment 2

[0063] A novel impregnation treatment process for die-casting plates, comprising the following steps:

[0064] S1. Use high-pressure water to spray onto the surface of the die-casting plate to remove the dirt attached to the surface, then dry and polish;

[0065] S2. Degrease and degrease the die-casting plate, rinse it with clean water for 3 times, and dry it with heated oxygen in a closed space;

[0066] S3. After drying, a magnetic field is applied to one side of the surface of the die-casting sheet, and the other side is covered with reduced iron powder, and the reduced iron powder enters the micropores on the surface of the die-casting sheet under the action of the magnetic field;

[0067] S4. Cover the surface of both sides of the die-casting plate with a double-effect film and take it out of the confined space. After standing still for 25 minutes, start the magnetic field again, and at the same time inject impregnating liquid into the double-effect film to trigger the d...

Embodiment 3

[0073] A novel impregnation treatment process for die-casting plates, comprising the following steps:

[0074] S1. Use high-pressure water to spray onto the surface of the die-casting plate to remove the dirt attached to the surface, then dry and polish;

[0075] S2. Degrease and degrease the die-casting plate, rinse it with clean water for 3 times, and dry it with heated oxygen in a closed space;

[0076] S3. After drying, a magnetic field is applied to one side of the surface of the die-casting sheet, and the other side is covered with reduced iron powder, and the reduced iron powder enters the micropores on the surface of the die-casting sheet under the action of the magnetic field;

[0077] S4. Cover the surface of both sides of the die-casting plate with a double-effect film and take it out of the confined space, let it stand for degassing for 30 minutes and then start the magnetic field again. repair action;

[0078] S5. After the double-effect film sinks as a whole, u...

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Abstract

The invention discloses a novel infiltration treatment process for a die-casting plate, and belongs to the technical field of die-casting. According to the novel infiltration treatment process, the holes of the die-casting plate can be filled with reducing iron powder through a magnetic field in a closed pure oxygen environment, and after a double-effect film covers the die-casting plate, chemical reaction between the reducing iron powder and oxygen is utilized, on one hand, oxygen is consumed to force the interior to become a vacuum environment, so that permeation of subsequent infiltration liquid is facilitated, on the other hand, accumulated heat can be used for heating and curing the infiltration liquid, the infiltration liquid permeating into holes is in a semi-cured state, the backflow phenomenon is not easy to occur, and then infiltration balls are separated by means of the magnetic adsorption effect of a magnetic field on the infiltration balls, and the surface of the plate is impacted. On one hand, the resonance of the infiltration fluid in holes is caused, the permeation is promoted, meanwhile, the compactness is improved, on the other hand, water absorption is gradually softened and abraded till sand holes in the surface of the plate are embedded in a matched mode, the infiltration fluid is blocked, the backflow is prevented, and meanwhile the sand holes are repaired.

Description

technical field [0001] The invention relates to the technical field of die-casting, and more specifically relates to a novel impregnation treatment process for die-casting plates. Background technique [0002] Die casting is a metal casting process characterized by the application of high pressure to molten metal using the cavity of a mold. Molds are usually machined from stronger alloys, a process somewhat similar to injection molding. Most die castings are ferrous, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, a cold chamber die casting machine or a hot chamber die casting machine is used. [0003] The cost of casting equipment and molds is high, so the die casting process is generally only used for mass production of a large number of products. Manufacturing die-cast parts is relatively easy, generally requiring only four major steps with low incremental cost per item. Die casting is e...

Claims

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Application Information

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IPC IPC(8): B22D17/20B22D31/00
CPCB22D17/20B22D31/005
Inventor 王亚
Owner 湖南鑫泉科技有限公司
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