阅读说明：本技术 一种带纹理的金属表面覆膜方法 (Method for coating film on metal surface with texture ) 是由 崔桂生 运起健 吴明明 张连辉 张宝华 于晓雷 高显胜 李泽宇 樊艳权 孝本康 于 2020-12-24 设计创作，主要内容包括：一种带纹理的金属表面覆膜方法,其步骤为：1)准备材料；2)制作模具；3)处理膜片；4)加固处理；5)加热合模；6)开模；7)后处理；本发明的金属表面附上薄膜,通过薄膜可以避免金属长时间暴露在空气中氧化,利用薄膜表面纹理效果处理的多样性和灵活性,实现金属表面纹理效果多样性。(A method for coating a film on a textured metal surface comprises the following steps: 1) preparing a material; 2) manufacturing a mould; 3) processing the membrane; 4) reinforcement treatment; 5) heating and die assembly; 6) opening the mold; 7) post-treatment; the film is attached to the metal surface, the metal can be prevented from being exposed in the air for a long time and oxidized through the film, and the diversity and the flexibility of the film surface texture effect treatment are utilized to realize the diversity of the metal surface texture effect.)

1. A method for coating a film on a metal surface with textures is characterized by comprising the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: according to the structural requirements of the metal piece, cutting the thin film diaphragm, placing the thin film diaphragm on the female die side of the die with the glue layer facing upwards, and placing the metal shell on the male die side with the appearance surface facing the thin film diaphragm;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die assembly die;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

2. The method of claim 1, wherein the glue layer thickness in step 3) is 0.005-0.02 mm.

3. The method as claimed in claim 1, wherein the heating temperature of the female mold side in step 5) is 150-190 ℃ and the heating temperature of the male mold side is 80-130 ℃.

4. A method as claimed in claim 3, wherein the heating and clamping in step 5) is carried out for a period of time in the range of 5 to 25 seconds.

5. A method as claimed in claim 3, wherein the die side heating temperature in step 5) is 150 ℃ and the die side heating temperature is 80 ℃.

6. The method of claim 4 wherein the time period for holding the heated mold in step 5) is 5 seconds.

7. The method of claim 4 wherein the time period for holding the heated mold in step 5) is 25 seconds.

Technical Field

The invention relates to a metal surface treatment method, in particular to a metal surface film coating method with textures.

Background

When traditional metal surface carries out the tectorial membrane and handles, not strengthening the processing and leading to tectorial membrane layer and metal surface to connect inseparably enough, lead to the unable clear demonstration of pattern on tectorial membrane layer, influence off-the-shelf preparation effect, metal surface line and tone are more single moreover, remove conventional positive pole colour and sandblast thickness, wire drawing effect, can't satisfy the requirement of market to its multiple tone and line.

Disclosure of Invention

The invention provides a method for coating a textured metal surface to solve the problems.

The technical scheme adopted by the invention is as follows:

a method for coating a film on a textured metal surface comprises the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: according to the structural requirements of the metal piece, cutting the thin film diaphragm, placing the thin film diaphragm on the female die side of the die with the glue layer facing upwards, and placing the metal shell on the male die side with the appearance surface facing the thin film diaphragm;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die assembly die;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

The thickness of the glue layer in the step 3) is 0.005-0.02 mm.

In the step 5), the heating temperature of the female die side is 150-190 ℃, and the heating temperature of the male die side is 80-130 ℃.

The time for heating, clamping and keeping in the step 5) is 5-25 s.

In the step 5), the heating temperature of the female die side is 150 ℃, and the heating temperature of the male die side is 80 ℃.

The time for heating, clamping and keeping in the step 5) is 5 s.

The time for heating, clamping and keeping in the step 5) is 25 s.

The invention has the beneficial effects that: the film is attached to the metal surface, the metal can be prevented from being exposed in the air for a long time and oxidized through the film, and the diversity and the flexibility of the film surface texture effect treatment are utilized to realize the diversity of the metal surface texture effect.

Detailed Description

A method for coating a film on a textured metal surface comprises the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: cutting the thin film diaphragm according to the structural requirement of the metal piece, placing the thin film diaphragm on the female die side of a die with a glue layer facing upwards and the glue layer thickness of 0.005-0.02mm, and placing the metal shell on the male die side with the appearance surface facing the thin film diaphragm;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die-closing die, wherein the heating temperature of the female die side is 150-190 ℃, the heating temperature of the male die side is 80-130 ℃, and the time for heating, closing and maintaining is 5-25 s;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

The present invention will be described in detail with reference to specific examples.

Example 1

A method for coating a film on a textured metal surface comprises the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: cutting the thin film membrane according to the structural requirement of the metal piece, placing the thin film membrane on the female die side of a die with a glue layer facing upwards and the thickness of the glue layer being 0.005mm, and placing the metal shell on the male die side with the appearance facing the thin film membrane;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die assembly die, wherein the heating temperature of the female die side is 150 ℃, the heating temperature of the male die side is 80 ℃, and the time for heating and die assembly is 5 s;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

Example 2

A method for coating a film on a textured metal surface comprises the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: according to the structural requirements of the metal piece, cutting and processing the thin film membrane, placing the thin film membrane on the female die side of a die, enabling a glue layer to face upwards, enabling the thickness of the glue layer to be 0.02mm, placing a metal shell on the male die side, and enabling the appearance surface to face the thin film membrane;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die-closing die, wherein the heating temperature of the female die side is 190 ℃, the heating temperature of the male die side is 130 ℃, and the time for heating, closing and maintaining is 25 s;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

Example 3

A method for coating a film on a textured metal surface comprises the following steps:

1) preparing materials: preparing a metal piece and a thin film membrane which need to be subjected to film coating treatment;

2) manufacturing a mold: manufacturing a proper film-covering forming die according to the structural requirements of the metal piece;

3) treating the membrane: according to the structural requirements of the metal piece, cutting and processing the thin film membrane, placing the thin film membrane on the female die side of a die, enabling a glue layer to face upwards, enabling the thickness of the glue layer to be 0.01mm, placing a metal shell on the male die side, and enabling the appearance surface to face the thin film membrane;

4) reinforcement treatment: after the film membrane and the metal piece are placed in place, closing the die at the female die side and the male die side, and vacuumizing after closing the die to enable the connection to be tighter;

5) heating and die assembly: heating the male die side and the female die side of the vacuumized die-closing die, wherein the heating temperature of the female die side is 170 ℃, the heating temperature of the male die side is 100 ℃, and the time for heating, closing and maintaining is 15 s;

6) opening the mold: opening the die after die assembly is completed, separating the film substrate from the release layer, and completely adhering the texture layer to the metal surface through the glue layer;

7) and (3) post-treatment: and trimming the split-molded metal piece, and then packaging and boxing.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.