阅读说明：本技术 一种金属件表面处理工艺 (Metal part surface treatment process ) 是由 张玲玲 于 2019-12-04 设计创作，主要内容包括：本发明公开了一种金属件表面处理工艺,包括如下步骤：步骤1)对金属件进行温水清洗处理,温水的温度为18～25℃,清洗时间为13～15分钟；步骤2)对所述金属件进行喷砂处理,在所述金属件的表面形成粗糙面；步骤3)对所述金属件进行钝化处理：采用质量分数为0.3％～1.2％的双氧水和质量浓度为1.2g/L～1.4g/L的磷酸三钠的钝化液对金属表面进行钝化。本发明通过采用温水清洗、喷砂和钝化工艺对金属件进行处理,提升了金属件的表面清洁度,并能维持较长时间。(The invention discloses a surface treatment process of a metal piece, which comprises the following steps: step 1) carrying out warm water cleaning treatment on the metal piece, wherein the temperature of the warm water is 18-25 ℃, and the cleaning time is 13-15 minutes; step 2) carrying out sand blasting treatment on the metal piece to form a rough surface on the surface of the metal piece; step 3) passivating the metal piece: the metal surface is passivated by adopting a passivating solution of hydrogen peroxide with the mass fraction of 0.3-1.2% and trisodium phosphate with the mass concentration of 1.2-1.4 g/L. According to the invention, the metal piece is treated by adopting warm water cleaning, sand blasting and passivation processes, so that the surface cleanliness of the metal piece is improved, and the metal piece can be maintained for a long time.)

1. A surface treatment process for a metal piece is characterized by comprising the following steps:

step 1) carrying out warm water cleaning treatment on the metal piece, wherein the temperature of the warm water is 18-25 ℃, and the cleaning time is 13-15 minutes;

step 2) carrying out sand blasting treatment on the metal piece to form a rough surface on the surface of the metal piece;

step 3) passivating the metal piece: the metal surface is passivated by adopting a passivating solution of hydrogen peroxide with the mass fraction of 0.3-1.2% and trisodium phosphate with the mass concentration of 1.2-1.4 g/L.

2. The metal member surface treatment process according to claim 1, wherein: and the passivation step also comprises the steps of controlling the pH value of the passivation solution to be 9-9.9, the passivation temperature to be 20-35 ℃, and the passivation time to be 3-6 hours.

3. The metal piece surface treatment process according to claim 1, wherein the blasting agent used for the sand blasting is copper ore sand, quartz sand, silicon carbide sand, iron sand and Hainan sand.

4. The metal member surface treatment process according to claim 1, wherein the metal member has a surface cleanliness of grade Sa1 after being subjected to sand blasting.

Technical Field

The invention relates to the field of metals, in particular to a surface treatment process for a metal piece.

Background

The conventional cleaning process includes a chemical cleaning step for removing the evaporation material deposited on the deposition-preventing plate and a sand blasting step for forming a rough surface on the deposition-preventing plate to facilitate deposition of the evaporation material. Because the evaporation material is poor in solubility, the chemical liquid cleaning step is usually cleaned by adopting an acidic solution or an alkaline solution with strong solubility, and the solutions have certain corrosivity on the metal-texture anti-sticking plate; meanwhile, the sand blasting process can apply certain external force to the surface of the attachment prevention plate, and the attachment prevention plate is easy to thin or damage. Therefore, the traditional cleaning process inevitably has certain damage effect on the anti-sticking plate body, and particularly under the condition of higher cleaning frequency, the service life of the anti-sticking plate is shorter.

Disclosure of Invention

The invention aims to provide a metal part surface treatment process aiming at the defects in the prior art so as to solve the problems in the prior art.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

a surface treatment process for a metal piece comprises the following steps:

step 1) carrying out warm water cleaning treatment on the metal piece, wherein the temperature of the warm water is 18-25 ℃, and the cleaning time is 13-15 minutes;

step 2) carrying out sand blasting treatment on the metal piece to form a rough surface on the surface of the metal piece;

step 3) passivating the metal piece: the metal surface is passivated by adopting a passivating solution of hydrogen peroxide with the mass fraction of 0.3-1.2% and trisodium phosphate with the mass concentration of 1.2-1.4 g/L.

Further, the passivation step also comprises the steps of controlling the pH value of the passivation solution to be 9-9.9, the passivation temperature to be 20-35 ℃, and the passivation time to be 3-6 hours.

Furthermore, the spraying materials adopted by the sand blasting treatment are copper ore sand, quartz sand, carborundum, iron sand and Hainan sand.

Further, the surface cleanliness of the metal piece after sand blasting treatment is grade Sa 1.

Compared with the prior art, the invention has the beneficial effects that:

the metal piece is treated by adopting warm water cleaning, sand blasting and passivation processes, so that the surface cleanliness of the metal piece is improved, and the metal piece can be maintained for a long time.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

The invention relates to a metal piece surface treatment process, which comprises the following steps:

step 1) carrying out warm water cleaning treatment on the metal piece, wherein the temperature of the warm water is 18-25 ℃, and the cleaning time is 13-15 minutes;

step 2) carrying out sand blasting treatment on the metal piece to form a rough surface on the surface of the metal piece;

step 3) passivating the metal piece: the metal surface is passivated by adopting a passivating solution of hydrogen peroxide with the mass fraction of 0.3-1.2% and trisodium phosphate with the mass concentration of 1.2-1.4 g/L.

And the passivation step also comprises the steps of controlling the pH value of the passivation solution to be 9-9.9, the passivation temperature to be 20-35 ℃, and the passivation time to be 3-6 hours.

The spraying materials adopted by the sand blasting treatment are copper ore sand, quartz sand, carborundum, iron sand and Hainan sand.

The surface cleanliness of the metal piece after sand blasting treatment is grade Sa 1.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.