阅读说明：本技术 一种搪塑模具及其增强处理方法和应用 (Slush molding die and reinforcement treatment method and application thereof ) 是由 管东波 姚卫国 窦艳丽 于 2020-05-07 设计创作，主要内容包括：本发明适用于搪塑技术领域,提供了一种搪塑模具及其增强处理方法和应用,该搪塑模具的增强处理方法包括以下步骤：对搪塑模具的待增强区域进行打磨抛光处理后,再用导电胶将支撑骨架粘在待增强区域中；用添加有整平剂的氨基磺酸镍电镀液对粘有支撑骨架的待增强区域进行电镀处理,得到增强处理后的搪塑模具。本发明提供的增强处理方法,通过电镀方法将搪塑模具与不锈钢网等支撑骨架连接在一起,从而可以起到局部增强的作用。该增强处理方法相比于现有技术具有局部增强效果好、处理速度快、成本低、不易导致搪塑模具报废等优点。(The invention is suitable for the technical field of slush molding, and provides a slush molding die and a reinforcement treatment method and application thereof, wherein the reinforcement treatment method of the slush molding die comprises the following steps: grinding and polishing the region to be reinforced of the slush-molding die, and then adhering the support framework in the region to be reinforced by using conductive adhesive; and (3) electroplating the to-be-reinforced area adhered with the support framework by using nickel sulfamate electroplating solution added with leveling agent to obtain the reinforced slush molding die. According to the reinforcement treatment method provided by the invention, the slush molding die and the support framework such as the stainless steel mesh are connected together by an electroplating method, so that the local reinforcement effect can be achieved. Compared with the prior art, the reinforcement treatment method has the advantages of good local reinforcement effect, high treatment speed, low cost, difficult scrapping of the slush molding die and the like.)

1. The reinforced treatment method of the slush molding die is characterized by comprising the following steps of:

grinding and polishing the region to be reinforced of the slush-molding die, and then adhering the support framework in the region to be reinforced by using conductive adhesive;

and (3) electroplating the to-be-reinforced area adhered with the support framework by using nickel sulfamate electroplating solution added with leveling agent to obtain the reinforced slush molding die.

2. The reinforcement treatment method for the slush mold according to claim 1, wherein the region to be reinforced of the slush mold is a tear line region of a non-working surface of the slush mold.

3. The reinforcement processing method for slush-molding dies according to claim 1, wherein said conductive adhesive is epoxy conductive adhesive.

4. The reinforcement treatment method for the slush mold according to claim 1, wherein the support skeleton is a stainless steel mesh with a mesh size of 10 to 30 meshes and a wire diameter of 0.3 to 0.45 mm.

5. The method for reinforcing a slush molding die as claimed in claim 1, wherein said leveling agent is a pyridinium hydroxypropyl sulfoinner salt.

6. The reinforced treatment method for slush mold as claimed in claim 1, wherein the leveling agent is added in an amount of 0.03 to 0.07g per liter of the nickel sulfamate plating solution.

7. The reinforced processing method for slush mold as claimed in claim 1, wherein the temperature of the plating process in said step is 40 to 60 ℃.

8. The reinforcement treatment method for the slush mold according to claim 1, wherein in the step, the current density of the electroplating treatment is 1.5 to 2.5A/cm²。

9. Slush mold obtained by the reinforcing treatment process according to any one of claims 1 to 8.

10. Use of a slush mold according to claim 9 for the preparation of an automotive soft skin.

Technical Field

The invention belongs to the technical field of slush molding, and particularly relates to a slush molding die and a reinforcement treatment method and application thereof.

Background

The slush molding die is a die for producing soft skins of automobiles, for example, the soft PVC skins in the skins of automobile instrument panels are produced by the slush molding die. Wherein, the inner cavity (i.e. working surface) of the slush mold is generally referred to as a surface A, and the outer surface (i.e. non-working surface) of the slush mold is generally referred to as a surface B.

In addition, the slush molding die of the automobile instrument panel has a complex structure in the manufacturing process, so that the thickness of a nickel shell at a certain position is too thin due to the uneven distribution of power lines in the molding process, and in the process of producing the slush molding skin, due to the rotation of the die, the self-weight action of powder may cause cracks to be generated in the too thin region of the slush molding die due to excessive stress, and in order to avoid the cracks, the special too thin region of the slush molding die is usually required to be locally reinforced.

However, in the prior art, the local over-thin area of the slush-molding die is welded by using an electric welding method, but the welding generates a large amount of heat at the local point of the slush-molding die, so that missing points are generated in the welding area of the slush-molding die, and the whole slush-molding die is scrapped. Therefore, the electric welding method adopted in the prior art is not suitable for local reinforcement treatment of the slush-molding die.

Disclosure of Invention

The embodiment of the invention aims to provide a reinforced treatment method of a slush molding die, and aims to solve the problems in the background art.

The embodiment of the invention is realized in such a way that the reinforced treatment method of the slush molding die comprises the following steps:

grinding and polishing the region to be reinforced of the slush-molding die, and then adhering the support framework in the region to be reinforced by using conductive adhesive;

and (3) electroplating the to-be-reinforced area adhered with the support framework by using nickel sulfamate electroplating solution added with leveling agent to obtain the reinforced slush molding die.

As a preferable scheme of the embodiment of the invention, the region to be reinforced of the slush-molding die is a tear-line region of the non-working surface of the slush-molding die.

As another preferable scheme of the embodiment of the present invention, the conductive adhesive is an epoxy conductive adhesive.

As another preferable scheme of the embodiment of the invention, the support framework is a stainless steel net, the mesh number of the stainless steel net is 10-30 meshes, and the wire diameter is 0.3-0.45 mm.

As another preferable mode of the embodiment of the present invention, the leveling agent is pyridinium hydroxypropyl sultone.

In another preferred embodiment of the present invention, the leveling agent is added in an amount of 0.03 to 0.07g per liter of the nickel sulfamate plating solution.

In another preferable embodiment of the present invention, in the step, the temperature of the electroplating treatment is 40 to 60 ℃.

In another preferable embodiment of the present invention, in the step, the current density of the electroplating treatment is 1.5 to 2.5A/cm²。

Another object of the embodiment of the invention is to provide a slush molding die obtained by the above reinforcing treatment method.

Another object of the embodiments of the present invention is to provide an application of the slush molding die in preparing an automotive soft skin

According to the reinforced treatment method of the slush-molding die provided by the embodiment of the invention, the slush-molding die and the supporting framework such as the stainless steel net are connected together by an electroplating method, so that the local reinforcing effect can be achieved. Compared with the prior art, the reinforcement treatment method has the advantages of good local reinforcement effect, high treatment speed, low cost, difficult scrapping of the slush molding die and the like.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.