阅读说明：本技术 一种箱包五金件表面处理方法 (Surface treatment method for luggage hardware ) 是由 邓俊雄 秦立俊 黄美容 封谟平 于 2019-11-28 设计创作，主要内容包括：本发明涉及五金件处理技术领域,且公开了一种箱包五金件表面处理方法,包括以下步骤：预处理,把金属原料放在加工器械上进行预处理加工,加工不同位置的五金件,使其具有基本的功能,清洗五金件,在表面处理装置中不间断地加入流动的清水进行清洗,在清洗过程中,保证进水流量大于出水流量,检查筛选,在原料预处理的过程中容易出现裂纹、缺口、凹凸不平、明显划痕、气泡、厚薄不均匀、烂边的现象,在清洗后。本发明能够对有缺陷的工件要对其进行筛选,这样更加容易发现有缺陷的原料,防止其由于前面步骤的缺陷浪费后面工序,避免的资源的浪费,提高耐磨性和坑腐蚀性,耐化学性好,丰满度好,提高了镀膜层的硬度。(The invention relates to the technical field of hardware treatment, and discloses a luggage hardware surface treatment method, which comprises the following steps: the method comprises the following steps of pretreating, namely pretreating and processing metal raw materials on a processing machine, processing hardware at different positions, enabling the hardware to have basic functions, cleaning the hardware, uninterruptedly adding flowing clear water into a surface treatment device for cleaning, ensuring that the inflow flow is larger than the outflow flow in the cleaning process, checking and screening, and easily generating the phenomena of cracks, gaps, unevenness, obvious scratches, bubbles, uneven thickness and broken edges in the raw material pretreatment process after cleaning. The method can screen the defective workpieces, so that the defective raw materials are more easily found, the defects in the previous step are prevented from wasting the subsequent process, the waste of resources is avoided, the wear resistance and pit corrosion are improved, the chemical resistance is good, the fullness is good, and the hardness of a coating layer is improved.)

1. A surface treatment method for luggage hardware is characterized by comprising the following steps:

s1: pre-treating, namely, putting the metal raw material on a processing machine for pre-treating processing, and processing hardware at different positions to ensure that the hardware has basic functions;

s2: cleaning hardware, namely uninterruptedly adding flowing clear water into the surface treatment device for cleaning, and ensuring that the inflow rate is greater than the outflow rate in the cleaning process;

s3: checking and screening, wherein the phenomena of cracks, gaps, unevenness, obvious scratches, air bubbles, uneven thickness and edge erosion are easy to occur in the raw material pretreatment process, and after cleaning, the workpieces with the defects need to be screened, so that the defects in the previous step are prevented from wasting the subsequent process;

s4: drying, namely performing primary drying on the cleaned raw materials to prevent water drops adhered to the hardware from influencing subsequent operations;

s5: chemical polishing, namely immersing the processed hardware in diluted sulfuric acid for 1-3 minutes, wherein the mass fraction of a sulfuric acid solute is 4-8%, and then washing the hardware by using clean water;

s6: electroplating, namely adding 10 to 25 percent of ceramic, 25 to 35 percent of chromium, 30 to 40 percent of nickel, 5 to 10 percent of zinc and 5 to 15 percent of manganese into an electroplating solution;

s7: mechanical polishing, wherein resources are directly wasted in the past for hardware with defects of scratches, burrs, air holes and corrosion spots during S3 inspection and screening, so that the hardware is polished, dry quartz sand is sprayed on the surface of a metal base material by adopting a sand blasting technology and the pressure of compressed air, and the burrs, the rust, the attached oil substances, the oxidized skin layer and the like which are not removed from the surface of the polished metal base material are removed to prepare the metal base material with a rough sand surface;

s8: cleaning and drying, repeating the steps S2 and S4 on the metal base material with the rough sand surface in S7, and finally drying for later use;

s9: spraying paint and coating, namely spraying primer on the surface of the hardware, then placing the workpiece sprayed with the primer in a vacuum environment, and uniformly covering a coating layer on the hardware in a distillation or sputtering way;

s10: and (4) dyeing treatment, namely completely soaking the workpiece in a dyeing agent so as to uniformly color the surface of the workpiece.

2. The luggage hardware surface treatment method according to claim 1, wherein a pretreatment module is arranged in the pretreatment process in the step S1, and the pretreatment module comprises a punching module, a bending module, a stretching module, a trimming module and an extruding module.

3. A luggage hardware surface treatment method according to claim 1, wherein after washing with washing in S2, the hardware is put into a washing box, alkaline water is added into the washing box for washing again, the washing time is 3-6 minutes, and then the hardware is put into a clean water box for washing again.

4. The method for processing the surface of the hardware of the luggage and the case as claimed in claim 1, wherein in the step of drying in the step S4, firstly, centrifugal processing is performed, the hardware is placed in a cylinder with meshes, water absorption cloth is adhered to the outer wall of a steel wire in the cylinder, and then the cylinder is driven by a motor to rotate so as to perform centrifugal dehydration.

5. The luggage hardware surface treatment method according to claim 1, wherein raw materials with higher wear resistance and pit corrosion resistance such as ceramic, chromium and nickel are added in the S6 electroplating step.

6. A luggage hardware surface treatment method according to claim 5, wherein after the electroplating treatment of S6, the color of the hardware is detected, and the color effect is uniform.

7. The method for processing the surface of hardware of a luggage as claimed in claim 1, wherein after the cleaning of S8, the dried metal substrate is coated with a titanium aluminum silicon nitride film on the surface of the metal substrate by vacuum coating method, and then the ion nitriding treatment is performed on the coated surface by arc ion nitriding method, wherein the treatment temperature is 650-700 ℃.

8. The surface treatment method for luggage hardware, according to claim 7, characterized in that the primer sprayed in S9 is UV paint, and the component ratio of the UV paint is 60 parts of photosensitive resin, 20 parts of photosensitive resin, 7 parts of photosensitizer, 8 parts of ethyl acetate and 5 parts of leveling agent.

9. The luggage hardware surface treatment method according to claim 8, wherein after the hardware surface is treated in S9, the hardware surface can be coated with a graphene water-based composite anticorrosive coating, and finally, amino baking paint is sprayed.

Technical Field

The invention relates to the technical field of hardware treatment, in particular to a luggage hardware surface treatment method.

Background

Various hardware such as zippers, pull rings and the like are needed in the production process of cases, the surface of the hardware needs to be treated in the production process, the surface treatment of the hardware is a process of forming a covering layer on the surface of a workpiece by a certain method to form a protective layer, and the purpose is to endow the surface of a product with the effects of attractiveness and corrosion resistance, but the effect of the process can be further improved.

Through retrieval, the Chinese patent with the publication number of CN105463371A discloses a surface treatment method of a zipper puller, which comprises the steps of surface treatment, cleaning, drying, water stain removal and film coating. The zipper puller surface treatment method disclosed by the invention is simple to operate, does not need complex equipment, is low in cost, has a good treatment effect, is simple in process flow, can not improve the firmness and corrosion resistance of hardware during treatment, and is low in overall quality, so that the luggage hardware surface treatment method is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a method for treating the surface of luggage hardware, which mainly solves the problems that the process flow is simple, the firmness and the corrosion resistance of the hardware cannot be improved during the treatment, and the overall quality is low.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a surface treatment method for luggage hardware comprises the following steps:

s1: pre-treating, namely, putting the metal raw material on a processing machine for pre-treating processing, and processing hardware at different positions to ensure that the hardware has basic functions;

s2: cleaning hardware, namely uninterruptedly adding flowing clear water into the surface treatment device for cleaning, and ensuring that the inflow rate is greater than the outflow rate in the cleaning process;

s3: the inspection and screening are carried out, the phenomena of cracks, gaps, unevenness, obvious scratches, air bubbles, uneven thickness and edge erosion are easy to occur in the raw material pretreatment process, and after cleaning, the workpieces with the defects are screened, so that the defective raw materials are easier to find, and the defects in the previous step are prevented from wasting the subsequent process;

s4: drying, namely performing primary drying on the cleaned raw materials to prevent water drops adhered to the hardware from influencing subsequent operations;

s5: chemical polishing, namely immersing the processed hardware in diluted sulfuric acid for 1-3 minutes, wherein the mass fraction of a sulfuric acid solute is 4-8%, and then washing the hardware by using clean water;

s6: electroplating, namely adding 10 to 20 percent of ceramic, 30 to 40 percent of chromium, 30 to 40 percent of nickel, 5 to 15 percent of zinc and 5 to 10 percent of manganese into an electroplating solution;

s7: mechanical polishing, wherein resources are directly wasted in the past for hardware with defects of scratches, burrs, air holes and corrosion spots during S3 inspection and screening, so that the hardware is polished, dry quartz sand is sprayed on the surface of a metal base material by adopting a sand blasting technology and the pressure of compressed air, and the burrs, the rust, the attached oil substances, the oxidized skin layer and the like which are not removed from the surface of the polished metal base material are removed to prepare the metal base material with a rough sand surface;

s8: cleaning and drying, repeating the steps S2 and S4 on the metal base material with the rough sand surface in S7, and finally drying for later use;

s9: spraying paint and coating, namely spraying primer on the surface of the hardware, then placing the workpiece sprayed with the primer in a vacuum environment, and uniformly covering a coating layer on the hardware in a distillation or sputtering way;

s10: and (4) dyeing treatment, namely completely soaking the workpiece in a dyeing agent so as to uniformly color the surface of the workpiece.

Furthermore, a pretreatment module is arranged in the pretreatment process in the S1, the pretreatment module comprises a punching module, a bending module, a stretching module, an edge cutting module and an extruding module, and hardware raw materials with different functions are subjected to primary processing through the modules so as to meet the basic requirements.

On the basis of the scheme, after the hardware is washed by washing in S2, the hardware is placed in a washing box, alkaline water is added into the washing box for washing again, the washing time is 3-6 minutes, then the hardware is placed in a clear water box for washing again, oil stains on the surface of the metal can be removed by washing with the alkaline water, and the hardware has certain anti-corrosion performance, improves the anti-corrosion performance of raw materials, and facilitates the next inspection work.

As a further scheme of the invention, in the step S4, when drying, firstly, centrifugal treatment is performed, the hardware is placed in a cylinder with meshes, water-absorbing cloth is adhered to the outer wall of the steel wire in the cylinder, then the cylinder is driven by a motor to rotate for centrifugal dehydration, so that water stains on the metal surface when naturally drying are prevented from affecting the subsequent polishing and electroplating operations, and air blowing is performed during the centrifugal dehydration, wherein the air blowing temperature is between 50 and 60 ℃, and the air blowing time is 5 to 8 minutes, so that the drying efficiency can be greatly improved.

Furthermore, raw materials with higher wear resistance and pit corrosion performance such as ceramic, chromium and nickel are added in the S6 electroplating step, so that the wear resistance and pit corrosion performance can be further improved.

On the basis of the scheme, the color of the hardware needs to be detected after the electroplating treatment of S6, and the color effect needs to be uniform.

In a further scheme of the invention, after the cleaning in the step S8, a layer of titanium aluminum silicon nitride film can be plated on the surface of the dried metal base material by adopting a vacuum coating method, and then the ion nitriding treatment is carried out on the surface of the coating film by adopting an arc ion nitriding method, wherein the treatment temperature is 650-700 ℃, so as to improve the firmness of the hardware.

Further, the primer sprayed in the step S9 is a UV paint, and the components of the UV paint are 60 parts of photosensitive resin, 20 parts of photosensitive resin, 7 parts of photosensitizer, 8 parts of ethyl acetate and 5 parts of leveling agent, and the spraying of the UV primer can improve the adhesion of a coating layer formed after vacuum coating on the UV primer, and has good chemical resistance, large adhesion, high paint film gloss and good fullness.

On the basis of the scheme, S9 can be to its aqueous composite anticorrosive coating of coating graphite alkene after to hardware surface treatment, the amino baking finish of spraying at last, has improved the corrosion resisting property of hardware, and life is higher.

(III) advantageous effects

Compared with the prior art, the invention provides a method for treating the surface of luggage hardware, which has the following beneficial effects:

1. according to the surface treatment method for the luggage hardware, the defective workpieces can be screened through the arrangement of checking and screening, so that the defective raw materials can be found more easily, the situation that the defects of the previous step waste the subsequent process is avoided, and the waste of resources is avoided.

2. The surface treatment method for the luggage hardware can remove oil stains on the metal surface by washing with alkaline water before detection and screening, has certain corrosion resistance, improves the corrosion resistance of raw materials, and facilitates the next inspection work.

3. According to the surface treatment method for the luggage hardware, the water stain on the metal surface can be prevented from affecting the following polishing and electroplating work when the metal surface is naturally dried through the centrifugal dehydration step, air blowing is performed during the centrifugal dehydration, and the drying efficiency is improved.

4. According to the surface treatment method for the luggage hardware, the raw materials with higher wear resistance and pit corrosion performance such as ceramic, chromium and nickel are added in the electroplating step, so that the wear resistance and pit corrosion performance can be further improved.

5. According to the surface treatment method for the hardware of the luggage, the adhesive force of a coating layer formed after vacuum coating on the UV primer can be improved through spraying of the UV primer, the chemical resistance is good, the adhesive force is large, the gloss of a paint film is high, the fullness is good, the finish paint is sprayed after vacuum coating, the hardness of the coating layer is improved, the corrosion resistance of the hardware is improved through spraying of the amino baking paint, and the service life is longer.

Drawings

FIG. 1 is a schematic flow chart of a method for treating surfaces of luggage hardware according to the present invention;

fig. 2 is a system schematic diagram of a pretreatment module of the surface treatment method for luggage hardware according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.