CN115125481A - A kind of kitchen sink vacuum coating method - Google Patents

Abstract

The invention relates to the technical field of metal surface treatment, in particular to a vacuum coating method for a kitchen sink, which comprises the following steps: s1, pre-treating the water tank; s2, transferring the water tank into a vacuum furnace, vacuumizing and heating, closing a throttle valve, introducing argon, opening a bias voltage, keeping a duty ratio, and activating; s3, closing argon gas, adjusting vacuum degree, introducing argon gas, setting bias voltage, keeping duty ratio, opening a zirconium arc target for bombardment priming, adjusting vacuum degree, and closing a throttle valve; s4, introducing argon and nitrogen again, setting bias voltage and duty ratio, opening a zirconium arc target and a titanium arc target, and depositing to form a zirconium-titanium alloy layer; and S5, closing the zirconium arc target, opening the chromium arc target, opening the acetylene flowmeter, introducing acetylene gas, keeping the chromium arc target and the titanium arc target equal, and depositing a titanium-chromium alloy layer to finish film coating. The invention adopts the vacuum ion plating technology to carry out hardening treatment on the surface of the stainless steel water tank, thereby ensuring that the water tank is not easy to scratch and prolonging the service life.

Description

A kind of kitchen sink vacuum coating method

technical field

The invention relates to the technical field of metal surface treatment, in particular to a vacuum coating method for kitchen sinks.

Background technique

Because stainless steel has high strength, hardness and wear resistance, and good corrosion resistance, it has been widely used in daily necessities as a component. Among them, stainless steel decorative plates are widely used in kitchen sinks, but due to the It is a high-gloss mirror surface. If the surface film is soft, it is easy to be scratched, and the deformation affects the appearance, thereby affecting the overall aesthetics of the kitchen. Generally, the friction coefficient of the metal surface is high, and the surface smoothness is not enough. In order to improve the surface hardness and resistance of stainless steel. Scratch performance requires surface treatment on this metallic stainless steel substrate.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings and deficiencies existing in the prior art, the object of the present invention is to provide a kitchen sink vacuum coating method, which adopts vacuum ion coating technology to carry out hardening treatment on the surface of the stainless steel sink, so that the sink is not easily scratched and becomes, Extending the service life; using arc target to deposit zirconium during coating can effectively improve the bonding force between the coating and the stainless steel substrate, and the deposited zirconium-titanium alloy layer can greatly improve the hardness of the stainless steel substrate, and the deposited titanium-chromium alloy The layer can make the stainless steel get the same color.

The object of the present invention is achieved through the following technical solutions: a kitchen sink vacuum coating method, obtained by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the water tank treated in step S1 into a vacuum furnace, evacuate to 8.0E-3Pa, and heat it to 150-200°C, close the throttle valve of the vacuum furnace, pass 800-1000SCCM argon, and open the partial The voltage is set to 500-800V, and the duty cycle is kept at 50-75%, and then the ion glow activation is performed for 300-600s, and it is ready for use;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 6.0E-3Pa, close the throttle valve, pass in 200-300SCCM argon gas to make the vacuum degree reach 1.0E-2.0Pa, and set the bias voltage to 1.0E-2.0Pa again. 450-550V, keep the duty ratio at 50-70%, open the zirconium arc target for bombardment bottoming, close the argon gas after completion, open the throttle valve, adjust the vacuum to 5.0E-3Pa, close the throttle valve, and reserve;

S4. Pour 300-400SCCM argon gas and 90-110SCCM nitrogen gas into the system in step S3 again, so that the vacuum degree reaches 1.5E-1.0Pa, the bias voltage is set to 75-85V, and the duty ratio is 65-75% , open the zirconium arc target and the titanium arc target, keep the zirconium arc target and the titanium arc target equal, and deposit a zirconium-titanium alloy layer for backup;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In the present invention, vacuum ion plating technology is used to harden the surface of the stainless steel water tank, so that the water tank is not easily scratched, and the service life is prolonged; the use of arc target to deposit zirconium can effectively improve the relationship between the coating and the stainless steel substrate. The deposited zirconium-titanium alloy layer can greatly improve the hardness of the stainless steel substrate, and the deposited titanium-chromium alloy layer can keep the color of the stainless steel unchanged.

Preferably, in step S1, a degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: 5-10% of sodium hydroxide, 8-12% of fatty alcohol polyoxyethylene ether %, nonylphenol polyoxyethylene ether 6-10%, oleic acid 1-5%, hexamethylenetetramine 4-8%, Lan-826 multi-purpose corrosion inhibitor 1-4%, the balance is water.

The degreasing agent used in the present invention has strong degreasing ability, so when degreasing stainless steel, manual scrubbing treatment is no longer required, and the stainless steel workpiece can be entered into the next process production only by treatment with degreasing agent, which not only saves labor It also improves the oil removal efficiency and brings great convenience to the production of the factory. The Lan-826 multi-purpose corrosion inhibitor used in it not only enhances the ability of saponification, but also improves the uniform corrosion properties of the cleaning agent and reduces the introduction of metal ions; the fatty alcohol polyoxyethylene ether 8-12 and As a surfactant, base phenol polyoxyethylene ether has the advantages of good water solubility, strong penetration, and no pollution; and the addition of oleic acid reduces foam expansion and loss of bath liquid, making the entire production method more reasonable and the entire production process. It is more efficient and has achieved unexpected good results.

Preferably, in step S3, the current of the zirconium arc target during bombardment and bottoming is 85-95A, and the bombardment time is 180-360s.

Preferably, in step S4, the current of the zirconium arc target is 85-95A, and the time is 30-40min; the current of the titanium arc target is 85-95A, and the time is 30-40min.

Preferably, in step S5, the current of the chromium arc target is 75-85A, and the chromium arc target and the titanium arc target are deposited equally for 600-900 s.

In the present invention, the current and deposition time of the baking arcs are required in the vacuum ion plating technology, so that the final coating film can better improve the performance of the stainless steel.

The beneficial effects of the invention are as follows: the invention adopts the vacuum ion plating technology to harden the surface of the stainless steel water tank, so that the water tank is not easily scratched, and the service life is prolonged; the use of an arc target to deposit zirconium can effectively improve the The bonding force between the coating and the stainless steel substrate, and the deposited zirconium-titanium alloy layer can greatly improve the hardness of the stainless steel substrate, and the deposited titanium-chromium alloy layer can keep the color of the stainless steel unchanged.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the examples, and the contents mentioned in the embodiments are not intended to limit the present invention.

Example 1

A kitchen sink vacuum coating method is prepared by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the water tank treated in step S1 into the vacuum furnace, evacuate to 8.0E, and heat it to 150°C, close the throttle valve of the vacuum furnace, introduce 800SCCM argon, open the bias voltage and set it to 500V, Keep the duty cycle at 50%, and then perform ion glow activation for 300s for standby;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 6.0E, close the throttle valve, pass in 200SCCM argon gas to make the vacuum degree reach 1.0EPa, set the bias voltage to 450V again, and keep the duty cycle as 50%, open the zirconium arc target for bombardment bottoming, after completion, close the argon gas, open the throttle valve, adjust the vacuum to 5.0E, close the throttle valve, and reserve;

S4. Pour 300SCCM argon gas and 90SCCM nitrogen gas into the system in step S3 again to make the vacuum degree reach 1.5E, set the bias voltage to 75V, and set the duty cycle to 65%, open the zirconium arc target and the titanium arc target, and keep the The zirconium arc target and the titanium arc target are equal, and a zirconium-titanium alloy layer is formed by deposition, which is used for standby;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In step S1, degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: sodium hydroxide 5%, fatty alcohol polyoxyethylene ether 8%, nonylphenol polyoxyethylene Vinyl ether 6%, oleic acid 1%, hexamethylenetetramine 4%, Lan-826 multi-purpose corrosion inhibitor 1%, and the balance is water.

In step S3, the current when the zirconium arc target bombards the bottom is 85A, and the bombardment time is 180s.

In step S4, the current of the zirconium arc target is 85A, and the time is 30 minutes; the current of the titanium arc target is 85A, and the time is 30 minutes.

In step S5, the current of the chromium arc target is 75A, and the chromium arc target and the titanium arc target are deposited for 600 s equivalently.

Example 2

A kitchen sink vacuum coating method is prepared by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the water tank treated in step S1 into the vacuum furnace, evacuate to 1Pa, and heat it to 170°C, close the throttle valve of the vacuum furnace, pass in 850SCCM argon, open the bias voltage and set it to 560V, keep The duty cycle is 56%, and then ion glow activation is performed for 370s for standby;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 1Pa, close the throttle valve, pass in 225SCCM argon gas to make the vacuum degree reach 1.0Pa, set the bias voltage to 475V again, and keep the duty cycle at 55 %, open the zirconium arc target for bombardment bottoming, close the argon gas after completion, open the throttle valve, adjust the vacuum to 1Pa, close the throttle valve, and reserve;

S4. Pour 325SCCM argon gas and 95SCCM nitrogen gas into the system in step S3 again to make the vacuum degree reach 0.5Pa, set the bias voltage to 78V, and set the duty ratio to 68%, open the zirconium arc target and the titanium arc target, and keep the The zirconium arc target and the titanium arc target are equal, and a zirconium-titanium alloy layer is formed by deposition, which is used for standby;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In step S1, degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: sodium hydroxide 6%, fatty alcohol polyoxyethylene ether 9%, nonylphenol polyoxyethylene Vinyl ether 7%, oleic acid 2%, hexamethylenetetramine 5%, Lan-826 multi-purpose corrosion inhibitor 2%, and the balance is water.

In step S3, the current when the zirconium arc target is bombarded at the bottom is 88A, and the bombardment time is 225s.

In step S4, the current of the zirconium arc target is 88A, and the time is 33min; the current of the titanium arc target is 88A, and the time is 33min.

In step S5, the current of the chromium arc target is 78A, and the chromium arc target and the titanium arc target are deposited for 670 s equivalently.

Example 3

A kitchen sink vacuum coating method is prepared by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the treated water tank in step S1 into the vacuum furnace, evacuate to 1.5Pa, and heat it to 180°C, close the throttle valve of the vacuum furnace, introduce 900SCCM argon, open the bias voltage and set it to 650V, Keep the duty cycle at 620%, and then perform ion glow activation for 450s for standby;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 1.5Pa, close the throttle valve, pass in 210SCCM argon gas to make the vacuum degree reach 1.5Pa, set the bias voltage to 500V again, and keep the duty cycle as 60%, open the zirconium arc target for bombardment bottoming, after completion, close the argon gas, open the throttle valve, adjust the vacuum to 1.5Pa, close the throttle valve, and reserve;

S4. Pour 350SCCM argon gas and 100SCCM nitrogen gas into the system in step S3 again to make the vacuum degree reach 0.70Pa, set the bias voltage to 80V, and set the duty ratio to 70%, open the zirconium arc target and the titanium arc target, and keep the The zirconium arc target and the titanium arc target are equal, and a zirconium-titanium alloy layer is formed by deposition, which is used for standby;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In step S1, degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: sodium hydroxide 7%, fatty alcohol polyoxyethylene ether 10%, nonylphenol polyoxyethylene Vinyl ether 8%, oleic acid 3%, hexamethylenetetramine 6%, Lan-826 multi-purpose corrosion inhibitor 3%, and the balance is water.

In step S3, the current when the zirconium arc target bombards the bottom is 90A, and the bombardment time is 270s.

In step S4, the current of the zirconium arc target is 90A, and the time is 35min; the current of the titanium arc target is 90A, and the time is 35min.

In step S5, the current of the chromium arc target is 80A, and the chromium arc target and the titanium arc target are deposited equally for 750s.

Example 4

A kitchen sink vacuum coating method is prepared by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the water tank treated in step S1 into the vacuum furnace, evacuate to 2Pa, and heat it to 190°C, close the throttle valve of the vacuum furnace, introduce 950SCCM argon, open the bias voltage and set it to 720V, keep The duty cycle is 68%, followed by ion glow activation for 520s, for standby;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 2Pa, close the throttle valve, pass in 275SCCM argon gas to make the vacuum degree reach 1.8Pa, set the bias voltage to 525V again, and keep the duty cycle at 65 %, open the zirconium arc target for bombardment bottoming, close the argon gas after completion, open the throttle valve, adjust the vacuum to 2Pa, close the throttle valve, and reserve;

S4. Pour 375SCCM argon gas and 105SCCM nitrogen gas into the system in step S3 again to make the vacuum degree reach 0.8Pa, set the bias voltage to 83V, and set the duty ratio to 73%, open the zirconium arc target and the titanium arc target, and keep the The zirconium arc target and the titanium arc target are equal, and a zirconium-titanium alloy layer is formed by deposition, which is used for standby;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In step S1, degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: sodium hydroxide 8%, fatty alcohol polyoxyethylene ether 11%, nonylphenol polyoxyethylene Vinyl ether 9%, oleic acid 4%, hexamethylenetetramine 7%, Lan-826 multi-purpose corrosion inhibitor 4%, and the balance is water.

In step S3, the current when the zirconium arc target bombards the bottom is 93A, and the bombardment time is 3150s.

In step S4, the current of the zirconium arc target is 93A, and the time is 38min; the current of the titanium arc target is 93A, and the time is 38min.

In step S5, the current of the chromium arc target is 83A, and the chromium arc target and the titanium arc target are deposited for 830 s equivalently.

Example 5

A kitchen sink vacuum coating method is prepared by the following steps:

S1. Ultrasonic degreasing and deesterification are carried out in the water tank, and dried after cleaning, for use;

S2. Transfer the water tank treated in step S1 into the vacuum furnace, evacuate to 3Pa, and heat it to 200°C, close the throttle valve of the vacuum furnace, introduce 1000SCCM argon, open the bias voltage and set it to 800V, keep The duty cycle is 75%, followed by ion glow activation for 600s, for standby;

S3. After the activation is completed, close the argon gas, open the throttle valve to adjust the vacuum degree to 3Pa, close the throttle valve, pass in 300SCCM argon gas to make the vacuum degree reach 2.0Pa, set the bias voltage to 550V again, and keep the duty ratio at 70 %, open the zirconium arc target for bombardment bottoming, close the argon gas after completion, open the throttle valve, adjust the vacuum to 3Pa, close the throttle valve, and reserve;

S4. Pour 400SCCM argon gas and 110SCCM nitrogen gas into the system in step S3 again to make the vacuum degree reach 1.0Pa, set the bias voltage to 85V, and set the duty ratio to 75%, open the zirconium arc target and the titanium arc target, and keep the The zirconium arc target and the titanium arc target are equal, and a zirconium-titanium alloy layer is formed by deposition, which is used for standby;

S5. After completing step S4, close the zirconium arc target, open the chromium arc target, open the acetylene flowmeter to pass in 50SCCM acetylene gas, keep the chromium arc target and the titanium arc target equal, deposit a titanium-chromium alloy layer, and complete the coating.

In step S1, degreasing agent is used to remove oil and ester, and the degreasing agent is made of the following components according to weight percentage: sodium hydroxide 10%, fatty alcohol polyoxyethylene ether 12%, nonylphenol polyoxyethylene Vinyl ether 10%, oleic acid 5%, hexamethylenetetramine 8%, Lan-826 multi-purpose corrosion inhibitor 4%, and the balance is water.

In step S3, the current when the zirconium arc target is bombarded at the bottom is 95A, and the bombardment time is 360s.

In step S4, the current of the zirconium arc target is 95A, and the time is 40min; the current of the titanium arc target is 95A, and the time is 40min.

In step S5, the current of the chromium arc target is 85A, and the chromium arc target and the titanium arc target are deposited for 900 s equivalently.

A performance test is carried out to the coating layer prepared in Example 1-5, and the test results are shown in the following table:

Adhesion: Tested according to the national standard GB/T 9286;

Gloss: Tested according to the national standard GB/T9754;

The metal texture is judged by observation. The effect of observing the metal texture is divided into 1-10 grades. The higher the grade, the better the effect. Grade 1 means no metal texture, and grade 10 is the highest grade.

Table 1

project Metal texture (grade) Adhesion (grade) Gloss(°) Example 1 9 1 88 Example 2 9 2 86 Example 3 9 1 90 Example 4 9 2 91 Example 5 10 1 89

It can be seen from Examples 1-5 in the above table that the coating layer obtained in the present invention has strong adhesion, good metallic texture and gloss, can decorate stainless steel well, and has broad market prospects and application value.

The above-mentioned embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways, and any obvious replacements are within the protection scope of the present invention without departing from the concept of the present invention.

Claims (10)

1. A vacuum coating method for a kitchen sink is characterized by comprising the following steps: is prepared by the following steps:

s1, taking a water tank for ultrasonic oil removal and ester removal, cleaning and drying for later use;

s2, transferring the water tank processed in the step S1 into a vacuum furnace, vacuumizing to 8.0E-3Pa, heating to 150-200 ℃, closing a throttle valve of the vacuum furnace, introducing argon, opening a bias voltage, keeping the duty ratio at 50-75%, and then performing ion glow activation for later use;

s3, closing argon after activation, opening a throttle valve to adjust the vacuum degree to 6.0E-3Pa, closing the throttle valve, introducing argon to enable the vacuum degree to reach 1.0E-2.0Pa, setting bias voltage again, keeping the duty ratio to be 50-70%, opening a zirconium arc target to perform bombardment priming, closing argon after activation, opening the throttle valve, adjusting the vacuum degree to 5.0E-3Pa, and closing the throttle valve for later use;

s4, introducing argon and nitrogen into the system in the step S3 again to enable the vacuum degree to reach 1.5E-1.0Pa, setting bias voltage and duty ratio, opening a zirconium arc target and a titanium arc target, keeping the zirconium arc target and the titanium arc target equal, and depositing to form a zirconium-titanium alloy layer for later use;

s5, after the step S4 is completed, the zirconium arc target is closed, the chromium arc target is opened, the acetylene flowmeter is opened, acetylene gas is introduced, the chromium arc target and the titanium arc target are kept equal, the titanium-chromium alloy layer is deposited, and film coating is completed.

2. The vacuum coating method for the kitchen sink according to claim 1, wherein the vacuum coating method comprises the following steps: in step S2, argon gas 800-1000SCCM is introduced.

3. The vacuum coating method for the kitchen sink according to claim 1, wherein the method comprises the following steps: in step S2, the open bias voltage is set to 500-800V.

4. The vacuum coating method for the kitchen sink according to claim 1, wherein the method comprises the following steps: in step S2, the ion glow activation time is 300-600S.

5. The vacuum coating method for the kitchen sink according to claim 1, wherein the method comprises the following steps: in step S3, argon gas is introduced at 200-300SCCM, and the bias voltage is set at 450-550V.

6. The vacuum coating method for the kitchen sink according to claim 1, wherein the vacuum coating method comprises the following steps: in step S3, the current of the zirconium arc target is 85-95A when bombarding and priming, and the bombarding time is 180-360S.

7. The vacuum coating method for the kitchen sink according to claim 1, wherein the vacuum coating method comprises the following steps: in step S4, 300-400SCCM argon gas is introduced, and 90-110SCCM nitrogen gas is introduced.

8. The vacuum coating method for the kitchen sink according to claim 1, wherein the vacuum coating method comprises the following steps: in step S4, the bias voltage is set to 75-85V and the duty cycle is set to 65-75%.

9. The vacuum coating method for the kitchen sink according to claim 1, wherein the vacuum coating method comprises the following steps: in step S4, the zirconium arc target current is 85-95A, and the time is 30-40 min; the current of the titanium arc target is 85-95A, and the time is 30-40 min.

10. The vacuum coating method for the kitchen sink according to claim 1, wherein the method comprises the following steps: in step S5, 50SCCM acetylene gas is introduced, the current of the chromium arc target is 75-85A, and the chromium arc target and the titanium arc target are equally deposited for 600-900S.