TWM492390U - Slide rail apparatus with electroplated cobalt chromium oxide ceramic coating - Google Patents

Abstract

The present disclosure provides a slide rail apparatus with electroplated cobalt chromium oxide ceramic coating. The electroplated cobalt chromium oxide ceramic is coated on the surface of apparatus substrate of the slide rail apparatus by means of trivalent chromate electroplating solution and a resin layer is coated on the metallic ceramic coating layer. The formed metallic ceramic of cobalt chromium oxide coated layer is major consist of chromium, cobalt, oxygen, hydrogen and phosphorus that composes with chromium oxide and cobalt oxide in amorphous phase structure. The thickness of the metallic ceramic of cobalt chromium oxide coating layer is less than 5μm. Thus, a deep dark color with gray value scale (L*) less than 65 that is ready for using in quench apparatus of slide rails.

Description

Sliding rail coated with chrome-cobalt oxide ceramic coating

The present invention relates to a sliding rail coated with a chrome-cobalt-cerium oxide ceramic coating, in particular, a chromium-cobalt-oxide metallized ceramic layer formed by electroplating on a substrate of a sliding rail, and then a resin layer is sprayed. Corrosion resistant and black industrial rails or home hardware rails.

A metallic ceramic is a ceramic-like constitutive structure formed by a non-metallic element mixed with a metal element, which has both metal characteristics and ceramic characteristics. For example, some eutectics have general ceramics. Hardness and very good corrosion resistance, or both metallic luster and electrical conductivity, or both ceramic color; etc.; often used to form non-metallic elements together with metal elements, such as metal nitrides (such as Titanium nitride (TiN), etc., metal carbides (such as graphite, tungsten carbide, zirconium carbide, chromium carbide, tantalum carbide, etc.), or metal oxides (such as chromium oxide, tungsten oxide, cobalt oxide), etc. There are borides, tellurides, etc.; these metal nitrides have been widely used in wear parts, turning tools, heat exchangers, engine components, biomedical, military and space.

In addition to sintering the entire metallized ceramic with ceramics, a larger application is to coat the substrate with a layer of metallized ceramic, and the formation of a metallized ceramic on the substrate will make it easier to form the desired shape of the workpiece. The method of forming metallized ceramics on a substrate is mainly divided into a dry method and a wet method, such as a plasma-assisted chemical deposition method, a vapor deposition method (CVD), a high-energy micro-arc technique, a high-temperature carbonization, a low-temperature carbonization, and a physics. Vapor deposition (PVD), powder bath, etc.; such as the sputtering method or vapor deposition method of US Pat. No. 4,925,394, the diffusion chromizing method of EP 1878943; Taiwan Patent Publication No. TW201101565 discloses the use of powder bath method, Taiwan patent TW I297365 disclosure The chromium carbide powder material produces a chromium carbide-based alloy material by sputtering on the tool; Chinese Patent Application No. CN201110064876.9 discloses the use of a spray method, etc.; however, these dry processes are expensive to manufacture and difficult to mass produce, while the spray method and powder are used. Although the bath method is relatively cheap, it requires high temperature, which may change the mechanical properties of the substrate, and it is difficult to apply to precision and high mechanical properties. Especially the dry method is often limited to two elements or three elements. , is difficult to form a total structure was more elements, thus, for example, can only form a single chromium-oxide (e.g., Cr ₂ O ₃₎ or a cobalt-based oxide alone (of CoO) This causes the color on the color of the metallized ceramic substrate not black, difficult to apply on the rail.

The conventional wet method mainly uses a plating method to form a metal layer on a substrate. In addition to a zinc plating layer, a copper plating layer, and a gold-silver plating layer, in the case of electroplating chrome plating, U.S. Patent Publication No. US20120024714 discloses the use of chromium sulfate (Cr ₂ (SO). ₄ ) ₃ ) Aqueous solution, adding boric acid, sodium sulfate, formic acid, solid carbamide as additives, and adjusting the pH of the plating bath with C ₁₂ H ₂₅ SO ₄ Na , electroplating to form a chromium electroplating layer; Japanese Patent JP2010189673 discloses the use of chromium sulfate, and the use of potassium sulfate (sodium, ammonium) or potassium chloride (ammonium, basic metal) as a conductive agent (conductive salt ), boric acid, sodium borate, potassium borate, phosphoric acid, disodium phosphate, dibasic potassium phosphate, sodium carbonate (diboric potassium phosphate) Sodium carbonate) or sodium bicarbonate is a pH buffer, using saccharin or saccharin sodium as an additive, using an aliphatic carboxylic acid and The aliphatic carboxylic acid or its salt is an aminocarboxylic acid which can be plated into a high hardness chromium electroplating layer, but the trivalent chrome plating is metallic and cannot be used for slipping. rail.

For non-pure metal plating, there are mainly three techniques for forming a chromium oxide electroplating layer by wet plating. (I) Early US Patent No. 4,196,063 has disclosed the use of trivalent chromium ions, iron ions, and cobalt ions. And a phosphate, which can be electroplated with a black trivalent chromium electroplated chromium layer; U.S. Patent Publication No. US20080169199 discloses an electroplating method using trivalent chromium, using a high concentration of ammonium bromide of 0.01 to 0.25 mole/L in a plating bath (ammonium bromide) ), sodium bromide and potassium bromide are additives; Japanese patent JP2007119826 proposes the use of chromium chloride as the main agent, using sodium sulfite (sodium) Sulfite), potassium sulfite, potassium iodide as an additive to form an electroplating bath of black trivalent chromium; the purpose of these disclosures is to present a high-roughness microstructure on the surface of the coating, resulting in optical light scattering. The phenomenon makes the color of the coating layer appear black. The second type is a thickened coating. For example, the Chinese patent CN201210440818.6 discloses that for the purpose of blackening the coating, the surface is roughened and opaque by using a trivalent chromium multi-layer primer, but the plating is too complicated and the cost is too high. Moreover, it is required to have a high plating thickness, and in addition to affecting the size of the workpiece, the plating stress is easily accumulated between the layers to easily cause peeling of the plating layer.

The third type uses a plating compound to react a substance into a black color in a plating film layer, so that the color appears as a black appearance. For example, Chinese Patent CN201010521853.1 discloses the use of cystine as a blackening agent, but its coating adhesion. Poor, and the color is still not black enough; Chinese patent CN200610086433.9 discloses the use of iron oxide as a blackening agent, the coating is not resistant to corrosion and is difficult to use; the trivalent chrome plating plated by these methods is Cr ⁺³ , O Co-deposition of OH, thin thickness does not affect the size of the workpiece, but the coating is not dense enough, the color is gray to black, and can not be used for the slide rail.

In addition, Taiwan Patent Publication No. TW201339373 discloses a blackening agent using fluoroantimonic acid (H ₂ SiF ₆ ), a nitrate salt, a permanganate, a co-depositing agent of a mineral acid cobalt, a phosphate dissimilaring agent, and a relatively environmentally friendly three. Valence chromium plating, electroplating on a substrate to form an amorphous phase structure of a trivalent chromium oxide plating layer, the oxide plating layer has a higher degree of ceramization than other technologies, and the degree of blackening reaches a gray scale value. 45% or less. However, in order to achieve a specific application for the degree of blackening, the disclosure of the technology only discloses the method of electroplating, but how to adjust the proportion of the plating layer so that the plating layer can have high surface hardness, wear resistance, and blackness. It is still an urgent problem to be solved in the application of slide rails and workpieces.

In view of the above-mentioned problems of the prior art, one of the main purposes of the present invention is to propose a sliding rail coated with a chrome-cobalt oxide ceramic coating, which is made of a sliding rail substrate and is on a sliding rail substrate. A layer of chrome-cobalt oxide ceramic plating is electroplated by electroplating, and a resin layer is attached to all or a part of the chrome-cobalt oxide ceramic plating layer. The material of the slide substrate is selected from the group consisting of iron, nickel, chromium, molybdenum, copper or an alloy containing iron, nickel, chromium, molybdenum and copper.

The chromium-cobalt oxide ceramic coating is formed on the sliding rail substrate by electroplating, and is composed of chromium element, oxygen element, hydrogen element, cobalt element and phosphorus element, and is an amorphous phase structure; the composition includes at least the following Group: (1) The first group is: chromium (Cr) and chromium oxide (Cr ₂ O ₃ ), (2) The second group is: chromium hydroxide (which is a hydroxide of trivalent chromium Cr (OH) ₃ ) with one or a combination of chromium phosphide (CrP); (3) the third group is: cobalt (Co) and cobalt oxide (cobalt of divalent cobalt or trivalent cobalt, Co ₃ O ₄ , Co ₂ O ₃₎ or a combination of one); (4) the fourth group of: cobalt hydroxide (divalent or trivalent cobalt, cobalt hydroxide _{Co (OH) 2, Co (} OH) 3) and Cobalt phosphide (which is one or a combination of divalent cobalt or trivalent cobalt phosphide CoP, Co ₂ P ₃ ); the chromium-cobalt oxide ceramic coating is very thin and dense, and has a thickness of 0.5 to 3 μm. The thickness of the chrome-cobalt oxide ceramic plating plated on the plated material is dark black, and the gray value scale (L*) is 65 or less; wherein the gray scale value is measured black Degree, using 256 gray levels, the brightness of gray scale Grayscale value 0 (black) to a gray level value of 255 (white). The thickness of the chrome-cobalt oxide ceramic plating layer refers to the average thickness of the plating layer, and does not refer to the thickness of the specific measurement point, which is the same as the following, and will not be described again.

Since the chromium-cobalt oxide ceramic coating consists of an amorphous phase structure composed of chromium, oxygen, hydrogen, cobalt and phosphorus, it contains a high content ratio of chromium oxide (Cr ₂ O ₃ ) and more. The content ratio of cobalt trioxide (Co ₃ O ₄ ) makes the chromium cobalt oxide ceramic coating more ceramic, so that the coating can have a high gray value scale (L*) of at least 65 or less.

In the transmission electron microscopy (TEM) image of the subsequent embodiment, it can be seen that the slide rail of the chrome-cobalt oxide ceramic coating of the present invention forms a groove-shaped micro-surface on the surface of the chrome-cobalt oxide ceramic coating. The structure has a very shallow depth, so that the chrome-cobalt oxide ceramic coating still retains good corrosion resistance. The groove-like microstructure makes the light irradiated on the surface of the chrome-cobalt oxide ceramic coating less refracting, and is further reduced. The gray value of the chrome-cobalt oxide ceramic coating (L*).

Furthermore, the sliding rail of the chrome-cobalt oxide ceramic coating proposed by the present invention has a plurality of grooves on the surface of the chrome-cobalt oxide ceramic coating, and the width of the grooves is substantially less than 200 nm and at least one groove width. Less than 100 nm, the grooves are grooves caused by gas generated on the surface of the cathode when the chromium-cobalt oxide ceramic coating is formed. Due to the inconsistent direction of the grooves, the light incident on the surface is difficult to reflect, so that the chromium-cobalt oxide ceramic coating The gray scale value is lower and blackened Higher degrees.

Furthermore, the chrome-cobalt oxide ceramic coating of the coated chromium-cobalt-oxide ceramic coating has good corrosion resistance, and its weather resistance is at least 96 hours according to the ASTM B-117 5% salt spray test standard. .

Further, the present invention proposes a sliding rail coated with a chrome-cobalt oxide ceramic coating, which may be cerium oxide (SiO ₂ ), polysiloxane, or perfluorinated chemicals (PFCs). ), fluororesin, phenolic resins, acrylic resin (or polycarboxyethylene resin), yttrium acrylate modified resin (or polycarboxyethylene silicon modified resin) One or a combination thereof is not limited. Since the chrome-cobalt oxide ceramic coating has good coating adhesion, the adhesion of the resin layer is 4B or more according to the ASTM-D3359 test.

For different applications, pigments or matting agents of various colors may be added to the aforementioned resins according to requirements to exhibit different colors or matt colors, which are not limited.

Another main purpose of the present invention is to propose a sliding rail coated with a chrome-cobalt oxide ceramic coating, which is made of a sliding rail substrate and covered with an interposer on the surface of the sliding substrate, in the interposer Depositing a layer of chrome-cobalt oxide ceramic plating layer, and attaching a resin layer to all or a part of the chrome-cobalt oxide ceramic plating layer; wherein the sliding rail substrate is made of metal or non-metal, the interposer is made of iron, It is composed of nickel, chromium, copper, silver, gold or a metal thereof, and is formed by electroplating, electroless plating, vapor deposition (including PVD, CVD, etc.) or a combination thereof.

The chromium-cobalt oxide ceramic coating is formed on the interposer by electroplating, consisting of chromium, oxygen, hydrogen, cobalt and phosphorus, and is an amorphous phase structure; the composition includes at least the following groups (1) The first group is: chromium (Cr) and chromium oxide (Cr ₂ O ₃ ), (2) the second group is: chromium hydroxide (calcium hydroxide of trivalent chromium Cr(OH) ₃ And one or a combination of chromium phosphide (CrP); (3) the third group is: cobalt (Co) and cobalt oxide (is a divalent cobalt or a trivalent cobalt oxide Co ₃ O ₄ , Co ₂ O ₃₎ or a combination of one); (4) the fourth group of: cobalt hydroxide (divalent or trivalent cobalt, cobalt hydroxide _{Co (OH) 2, Co (} OH) 3) and phosphate Cobalt (which is one of or a combination of divalent cobalt or trivalent cobalt phosphide CoP, Co ₂ P ₃ ); the coated rail of the coated chromium-cobalt oxide ceramic coating in chrome-cobalt oxide ceramic coating The surface is formed with a groove-like microstructure having a width W ₈₀ of less than 10 μm. The chrome-cobalt oxide ceramic coating of the present invention has a plurality of grooves on the surface of the chrome-cobalt oxide ceramic coating, and the grooves have a width of substantially less than 200 nm and at least one groove having a width of less than 100 nm. The chrome-cobalt oxide ceramic coating has a lower gray scale value and a higher degree of blackening.

The thickness of chrome-cobalt oxide ceramic coating is very thin and dense, and its thickness is 0.5~3μm. For different applications, the thickness can be less than 5μm; the chrome-cobalt oxide ceramic coating on the plating is dark black, and its gray level value (gray) The value scale) (L*) is 65 or less.

Wherein, the gray scale value of the chrome-cobalt oxide ceramic coating is measured by a Spectra Scan Colorimeter, and when the gray scale value is 100%, it is expressed as all white, and when the gray scale value is 0. When % is expressed as all black.

Furthermore, the chrome-cobalt oxide ceramic coating of the coated chromium-cobalt-oxide ceramic coating has good corrosion resistance, and its weather resistance is at least 96 hours according to the ASTM B-117 5% salt spray test standard. .

Further, the sliding rail coated with the chrome-cobalt oxide ceramic coating can be further adhered to the chrome-cobalt oxide ceramic coating, and the resin layer can be cerium oxide (SiO2) or polyoxynitride. Polysiloxane, perfluorinated chemicals (PFCs), fluororesin, phenolic resins, acrylic resins (or polycarboxyethylene resins), yttrium acrylate modified resins ( Or one of the polycarboxyethylene silicon modified resins, or a combination thereof, is not limited. Since the chrome-cobalt oxide ceramic coating has good coating adhesion, the adhesion of the resin layer is 4B or more according to the ASTM-D3359 test.

For different applications, pigments or matting agents of various colors may be added to the aforementioned resins according to requirements to exhibit different colors or matt colors, which are not limited.

According to the above description, a slide rail coated with a chrome-cobalt oxide ceramic coating can have one or more of the following advantages:

(1) This creation can form a chromium-cobalt oxide ceramic coating on the substrate by wet plating, and improve the conventional techniques such as high temperature permeation, vapor deposition (CVD) or physical vapor deposition (PVD). Other dry-coating techniques for metallized ceramics can significantly reduce the cost, uniform coating layer, and avoid the disadvantage of using a high-temperature coating environment to anneal the tool and lose mechanical properties. In accordance with the electroplating method disclosed in Taiwan Patent Publication No. TW201339373, after careful study and repeated trials to change the formulation composition, the chromium-cobalt oxide ceramic coating was successfully added with cobalt oxide, and the conventional wet method or the Taiwan Patent Publication No. TW201339373 was disclosed. The disadvantage of insufficient blackening of the electroplated coating.

(2) Although this work still uses fluorinated acid (H ₂ SiF ₆ ), nitrate, permanganate blackening agent, mineral acid cobalt co-depositing agent, phosphate compounding agent, adopting environmentally friendly trivalent Chrome plating. However, in order to increase the degree of blackening, the present work is more advanced to form more content ratio of chromium oxide (Cr ₂ O ₃ ) and more content ratio of galvanization of cobalt trioxide (Co ₃ O ₄ ), so that the coating It can have a high gray value scale (L*) of at least 65 or less in order to be applied to the rails and workpieces.

(3) As the creation changes the black plating formed by the conventional trivalent chromium plating more progressively, in addition to the purpose of ceramization, a groove-like microstructure is formed on the surface of the chromium-cobalt oxide ceramic coating more progressively. The trace shape is extremely shallow, and there is no deep and sliding substrate, which makes the chromium-cobalt oxide ceramic coating have good corrosion resistance. Moreover, the groove-like microstructure makes the light irradiated on the surface of the chromium-cobalt oxide ceramic coating hard to be refracted. It also reduces the gray value scale (L*) of the chrome-cobalt oxide ceramic coating, which is more suitable for application on the slide rail and the workpiece.

(4) As the creation changes the black plating formed by the conventional trivalent chromium plating more progressively, in addition to the purpose of ceramization, a plurality of grooves arranged in an inconsistent direction are formed more progressively on the surface of the chrome-cobalt oxide ceramic coating. The grooves have a width of substantially less than 10 to 200 nm. Since the grooves make the light incident on the surface difficult to reflect, the gray value scale (L*) of the chromium-cobalt oxide ceramic coating is further reduced. It is more suitable for application on slide rails and workpieces.

(5) The chrome-cobalt oxide ceramic coating of the present invention has good paint adhesion, and the groove of the chrome-cobalt oxide ceramic coating and the characteristics of the chrome-cobalt oxide metallized ceramic can provide a good coating substrate, so that The resin layer has good adhesion and can reach the ASTM-D3359 hundred grid test 4B or more.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

1‧‧‧Slide substrate (apparatus substrate)

2‧‧‧Inter layer

3‧‧‧metallic ceramic of cobalt chromium oxide coating layer

4‧‧‧trivalent chromate electroplating solution

5‧‧‧chromium element

6‧‧‧cobalt element

7‧‧‧Oxygen element

11‧‧‧linear slide rail

12‧‧‧Furniture slide rail

121‧‧‧inner slide rail

122‧‧‧outer slide rail

13‧‧‧resin layer

Fig. 1 is a schematic view showing a method of forming a sliding rail coated with a chrome-cobalt oxide ceramic coating; the second drawing is an elemental analysis diagram of the chrome-cobalt oxide ceramic coating; and the third drawing is a coating of chromium-cobalt oxide. The composition analysis map of the different levels of the rail coating of the ceramic coating; the fourth figure is a schematic diagram of the first embodiment of the sliding rail of the coated chromium-cobalt oxide ceramic coating; and the fifth figure is the coated chromium-cobalt A schematic view of a second embodiment of a slide rail of an oxide ceramic coating.

Schema attachment:

Attachment I is a photomicrograph of the surface of the chrome-cobalt oxide ceramic coating produced by the penetrating microscope (1); Annex II is the transmission microscope of the chrome-cobalt oxide ceramic coating. Photograph of the surface topography of the film (2); Attachment III is the photo of the groove generated by the gas lithography of the chrome-cobalt oxide ceramic coating of the creation of the chrome-cobalt oxide ceramic coating. (Photos) IV. Photograph of the surface topography of the chrome-cobalt oxide ceramic coating produced by the penetrating microscope. Photograph of the groove produced by the gas during electroplating (2); and the V-graph of the annex is the chrome-cobalt oxide ceramic of the creation. Photograph of the plating section of the coating.

The foregoing and other technical contents, features and advantages of the present invention will be apparent from the following description of the drawings and the detailed description.

Please refer to FIG. 1 , which is a schematic view of a method for forming a sliding rail coated with a chromium-cobalt-oxide ceramic coating by electroplating. In the figure, in the trivalent chromium plating solution 4, a trivalent chromium salt is dissolved, which is wrong. a co-depositing agent of a mixture, a blackening additive and a cobalt ion; when the sliding rail substrate 1 of the sliding rail starts to be plated, the metal chromium is reduced to oxidize and phosphate the chromium, and the cobalt is reduced to the cobalt. Oxidation or phosphating, co-deposition to form a chromium-cobalt oxide ceramic coating 3. The chromium-cobalt oxide ceramic coating 3 is composed of chromium element 5, oxygen element 7, cobalt element 6, hydrogen element (not shown in the figure), and phosphorus element (not shown in the figure).

In particular, in Figure 1, only the plating solution is shown, chromium ions and water molecules or -HCO ₂ are electroplated to form chromium atoms, and cobalt ions are electroplated to form cobalt atoms, chromium atoms and oxygen are combined to form chromium oxide, cobalt atoms and The combination of oxygen into cobalt oxide, other hydroxides or phosphides, etc., is not shown in Fig. 1.

The rail substrate 1 of the tool may be metal or non-metal. When the rail substrate 1 is metal, such as iron, nickel, chromium, molybdenum, copper or an alloy thereof (such as high carbon steel, chrome molybdenum steel, stainless steel) Alternatively, the chrome-cobalt oxide ceramic plating layer 3 may be directly formed on the slide substrate 1 by electroplating. In addition, when the slide substrate 1 is a metal that is not easily plated, such as titanium or aluminum, iron, nickel, or the like may be formed on the slide substrate 1 by electroplating, electroless plating, vapor deposition, vapor deposition, physical deposition, or the like. An interposer 2 of chromium, copper, silver, gold or a metal thereof; and a chromium-cobalt oxide ceramic plating layer 3 formed on the interposer 2 by the above method.

For different applications, the slide rail substrate 1 of the slide rail may be metal or non-metal. When the slide rail substrate 1 is non-metal, such as plastic material, ceramic material, glass material or fiber material, it can be used in the slide rail substrate. 1 first to form an interposer 2 of iron, nickel, chromium, copper, silver, gold or a metal thereof by electroplating, electroless plating, evaporation, vapor deposition, physical deposition, etc.; The method forms a chromium-cobalt oxide ceramic coating 3. For different applications, when the slide substrate 1 is metal, the slide substrate 1 may be first plated, electroless plated, vapor deposited, vapor deposited, or physically. A method such as deposition forms an interposer 2 of one of iron, nickel, chromium, copper, silver, gold or an alloy thereof.

The trivalent chromium electroplating method disclosed in Taiwan Patent Publication No. TW201339373, after the trivalent chromium electroplating solution has been created for a long period of time, in order to make the blackening degree of the plating layer higher to meet the specific application, the composition of the trivalent chromium plating solution is as follows. Table 1 or Table 2 can be used.

Thus, a fluorinated acid (H ₂ SiF ₆ ), a nitrate blackening agent, a mineral acid cobalt co-depositing agent, a halogen salt-based complexing agent, and an environmentally friendly trivalent chromium plating are used in the sliding substrate 1 The chrome-cobalt oxide ceramic plating layer 3 having an amorphous phase structure is formed by electroplating. See Fig. 2, Fig. 2 is an elemental analysis diagram of the chrome-cobalt oxide ceramic coating of the present invention; see also Fig. 3, and Fig. 3 is different of the coating of the coated chrome-cobalt oxide ceramic coating. The depth component analysis spectrum is obtained from Fig. 2 and Fig. 3. The chromium-cobalt oxide ceramic coating 3 is mainly composed of oxygen, chromium and cobalt, and there is still hydrogen, but the atomic percentage of hydrogen is At The atomic ratio can not be analyzed; the second is composed of phosphorus; after the chemical analysis of the chromium-cobalt oxide ceramic coating 3, the chromium-cobalt oxide ceramic coating 3 is composed of the following four groups: 1) chromium metal (Cr) and chromium oxide (Cr ₂ O ₃ ), and a small amount of oxygen and chromium compounds of different composition; and when the content of chromium oxide (Cr ₂ O ₃ ) is higher, the chromium and cobalt oxide The higher the degree of blackening of the ceramic coating 3; (2) the trivalent chromium hydroxide (Cr(OH) ₃ ) and chromium phosphide (CrP), and a small amount of different compositions of hydroxide and chromium compounds, chromium and phosphorus compounds; (3) cobalt (Co) and cobalt oxide (Co ₃ O _4), and a small amount of different oxygen and cobalt compounds such as dimethylformamide, Or trivalent cobalt, cobalt oxide (cobalt oxide Co ₂ O _3, CoO CoO) and the like; and when the content of the higher tricobalt tetroxide, chromium, cobalt oxide ceramic coating which blackening of the higher degree of 3; (4) cobalt hydroxide (Co (OH) ₃₎ and cobalt phosphide (CoP), and a divalent or trivalent cobalt, cobalt hydroxide (e.g., Co (OH) _2), a divalent or trivalent cobalt, cobalt phosphide ( Such as Co ₃ P ₂ ) and the like.

Please refer to the attached drawings I and II of the figure. The attached figure I and the attached figure II of the figure are the different magnification surfaces of the through-beam TEM shot of the slide coated with chrome-cobalt oxide ceramic coating. In the topographical photograph, the surface of the chrome-cobalt oxide ceramic plating layer 3 has a groove-like microstructure in addition to the above four groups forming an amorphous phase structure. With the groove-like microstructure, the slide of the chrome-cobalt oxide ceramic coating 3 of the present invention makes the light irradiated on the surface of the chrome-cobalt oxide ceramic coating 3 not easily refracted, and the ash of the chrome-cobalt oxide ceramic coating 3 is further reduced. Gray value scale (L*); where the grayscale value is the degree of black measurement, using 256 gray scales, the grayscale brightness from grayscale value 0 (black) to grayscale value 255 (white ). The chrome-cobalt oxide ceramic plating layer 3 of the present invention has a groove-like microstructure on the surface of the chrome-cobalt oxide ceramic plating layer 3 in order to make the degree of blackening sufficient to make incident light rays difficult to reflect, wherein the width W _{80 is} less than 10 μm.

Please refer to Figure III and IV of the attached figure. Figure III of the attached figure and Figure IV of the attached figure show the surface topography of different positions of the penetrating microscope TEM shot of the coated chromium-cobalt oxide ceramic coating. As shown in the figure, the surface of the chrome-cobalt oxide ceramic plating layer 3 has a plurality of grooves having a width of substantially less than 100 to 200 nm, or even about 20 nm, and the grooves are chrome-cobalt oxide ceramic plating layers 3 When the grooves on the surface of the cathode generate gas, the grooves incident on the surface make the light incident on the surface difficult to reflect, and the gray value scale of the chromium-cobalt oxide ceramic plating layer 3 is further lowered (L). *).

The thickness (film thickness) of the chrome-cobalt oxide ceramic coating layer 3 can be adjusted according to the plating conditions, so that the variation of the sliding rail of the chrome-cobalt oxide ceramic coating before and after electroplating does not affect the mechanical precision, chrome-cobalt oxidation The film thickness of the ceramic plating layer 3 is preferably 3 μm or less, or 0.5 to 3 μm; for different applications, the plating time can be extended and the plating temperature can be lowered, so that the thickness can be increased to less than 5 μm, and if the plating time is increased, More than 5μm, but its adhesion will be reduced, although this is not the best coating, but it is easily achieved by the technique of the present invention. The thickness (film thickness) of chrome-cobalt oxide ceramic coating 3 can be tested by many scientific methods, or can be analyzed by photomicrograph of the cross-section of the coating, as shown in Figure V of the attached figure, the figure V of the attached figure is the creation of this Photograph of the cross section of the chrome-cobalt oxide ceramic coating.

The surface hardness of chrome-cobalt oxide ceramic coating 3 is 800Hv, which can be adjusted according to the plating conditions for different applications up to 1200Hv.

The linear polarization corrosion current of chrome-cobalt oxide ceramic coating 3 is less than 1×10 ^-5 ampere, which can be adjusted according to the plating conditions for different applications up to 1×10 ^-6 ampere.

Weather resistance of chrome-cobalt oxide ceramic coating 3, salt spray test according to ASTM B-117 in 5% sodium chloride spray weather resistance test for at least 96 hours, can be adjusted according to plating conditions for different applications More than 168 hours.

Further, the slide rail coated with the chrome-cobalt oxide ceramic coating proposed by the present invention may be further coated with a resin layer 13 on the chrome-cobalt oxide ceramic plating layer 3 (see FIG. 7), and the resin layer 13 may be oxidized. SiO (SiO ₂ ) based colloidal coatings (so-gel), polyoxyalkylene compound based coatings, perfluorocarbon based coatings, perfluororesin based coatings, phenolic based coatings, acrylic coatings ( Also known as acrylic paint), acrylic enamel modified resin coatings, etc., but various other coatings can be applied, and will not be enumerated here. Since the surface of the chrome-cobalt oxide ceramic plating layer 3 has grooves and forms a grainy rough surface, it has a good coating adhesion force, and the adhesion of the resin layer 3 is at least 4 B or more according to the ASTM-D3359 test.

The SiO ₂ -based colloidal coating is a film-forming material of a colloidal (so-gel) cerium oxide. The cerium oxide has high porosity, hydrophilicity and high specific surface area. It can increase hardness, wear resistance and scratch resistance, and provide surface protection of chrome-cobalt oxide ceramic coating 3.

A coating of a silane polysiloxane compound The surface of the chrome-cobalt oxide ceramic plating layer 3 is provided with abrasion resistance, lubricity, adhesion, and simple workability. Wherein, the polysiloxane coating is a coating of a decane polymer formed by copolymerization of a decane compound with a substance such as an acrylate polymer, which can improve the surface physical properties of the chrome-cobalt oxide ceramic coating 3, and has a slippery Sexuality, fit, scratch resistance, smooth surface, flexibility and hydrophobicity.

Perfluorinated chemicals (PFCs) coatings, perfluorocarbons (PFCs) are an organic compound. The main characteristics of the coatings are good chemical resistance, good processability, heat resistance to 260 ° C, and high lubricating properties. The chrome-cobalt oxide ceramic coating 3 coated with a perfluorocarbon coating can be used for aerospace equipment, gaskets, gaskets, fire insulation tools, tanks, containers, surface coatings for 3C products, or medical equipment.

Perfluororesin coatings such as polytetrafluoroethylene (PTFE) coatings, polychlorotrifluoroethylene (PCTFE) coatings, polyvinylidene fluoride (PVDF) coatings, ethylene-tetrafluoroethylene copolymer (ETFE) coatings, Ethylene-chlorotrifluoroethylene copolymer (ECTFE) coating, polyvinyl fluoride (PVF) coating, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (commonly known as fusible polytetrafluoroethylene, PFA) coating, tetrafluoroethylene Ethylene-hexafluoropropylene copolymer (commonly known as fluoroplastic 46, FEP) coating, tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl vinyl ether copolymer coating, chrome-cobalt oxide ceramic coating coated with perfluororesin coating The slide rails of 3 can have excellent properties such as high and low temperature resistance, dielectric properties, chemical stability, weather resistance, incombustibility, non-stickiness and low friction coefficient.

A phenolic resin coating is a synthetic resin formed by condensation polymerization of a phenol and an aldehyde. The sliding rail of the chromium-cobalt oxide ceramic coating 3 coated with a phenolic resin coating can be hard, abrasion resistant, water resistant, moisture resistant, and chemical resistant. Corrosion, insulation and other characteristics.

The sliding track of the chrome-cobalt oxide ceramic coating 3 of the coating of the acrylic resin coating or the acrylic enamel modified resin (also referred to as acrylic modified resin coating, polycarbonylethylene denatured resin coating) may have a hard surface and resistance Grinding, chemical resistance and other characteristics, especially in the good spray control, the use of acrylic enamel modified resin coatings can achieve a pencil hardness of 4H or more.

The following examples are various embodiments of the slide rail of the chrome-cobalt oxide ceramic coating which is the present invention, but the actual aspect is not limited thereto.

<Example 1>

Referring to FIG. 4, FIG. 4 is a schematic view showing a first embodiment of a slide rail coated with a chrome-cobalt oxide ceramic coating, which is formed by a slide rail coated with a chrome-cobalt oxide ceramic coating. Rail) 11, the slide rail substrate 1 of the linear slide rail 11 is a chrome molybdenum steel material, and is electroplated on the slide rail substrate 1 by the creation of a trivalent chromium plating method to form a chromium cobalt oxide ceramic coating layer 3, chrome cobalt oxide The ceramic plating layer 3 is composed of chromium element 5, oxygen element 7, cobalt element 6, hydrogen element (not shown in the figure), and phosphorus element (not shown in the figure), and its characteristics are as shown in Table 3.

Among them, the corrosion resistance test is based on AutoLAB impedance spectrum analysis linear polarization test, the evaluation criteria are as follows: Level 1, linear polarization corrosion current (amperes) less than 1 × 10 ^-7 below, level 2, 1 × 10 ^-6 or less , grade 3, 1×10 ^-5 or less, grade 4, 1×10 ^-4 or more; salt spray test is based on ASTM B-117 weathering test of 5% sodium chloride droplets, the following examples show the same method .

In this embodiment, in order to further protect the surface of the linear slide rail 11, except that the chrome-cobalt oxide ceramic coating layer 3 is maintained on the contact surface of the slider and the slide rail, the other portions are sprayed on the chrome-cobalt oxide ceramic coating layer 3. A resin layer 13 of a perfluorocarbon-based coating having a thickness of 5 μm or less is shown in the drawing; the adhesion of the resin layer 13 conforms to the requirements of ASTM-D3359, Test No. 4B. The linear slide rail 11 of the slide rail has a thin, wear-resistant and weather-resistant chrome-cobalt oxide ceramic coating 3 on the sliding rail contact surface, which does not affect the movement of the slider to meet the precise requirements, and the slip The linear slide rail 11 of the rail is sufficiently black, and it is not reflective except for aesthetics, and can be used in a manufacturing apparatus such as an LCD.

<Example 2>

Referring to FIG. 5, FIG. 5 is a schematic view showing a second embodiment of a sliding rail coated with a chrome-cobalt oxide ceramic coating, which is formed by a sliding rail coated with a chrome-cobalt oxide ceramic coating. Rail) 12, the furniture rail 12 is composed of an inner slide rail 121 and an outer slide rail 122, and the slide rail substrate 1 of the inner slide rail 121 and the outer slide rail 122 It is made of medium carbon steel (for different applications, the inner slide rail 121 and the outer slide rail 122 can also be made of stainless steel or other materials), and the chromium is electroplated on the slide substrate 1 by the creation of the trivalent chromium plating method. Cobalt oxide ceramic coating 3, chrome-cobalt oxide ceramic coating 3 is composed of chromium element 5, oxygen element 7, cobalt element 6, hydrogen element (not shown in the figure), and phosphorus element (not shown in the figure) Its characteristics are shown in Table 4.

In this embodiment, in order to further protect the surfaces of the inner slide rail 121 and the outer slide rail 122, a resin layer 13 of a decane polymer base having a thickness of 5 μm or less is sprayed on the chrome-cobalt oxide ceramic plating layer 3, as shown in the figure. The adhesion of the resin layer 13 is in accordance with the requirements of ASTM-D3359 Hundred Test 4B. The furniture rail 12 of the slide rail has the chrome-cobalt oxide ceramic plating layer 3 and the resin layer 13 which are excellent in weather resistance, and is light and silent when sliding, except that the degree of blackening is sufficiently beautiful.

For other resin layers 13, a colloidal coating (so-gel) of cerium oxide (SiO ₂ ) may be selected, and since the thickness of the colloidal coating of cerium oxide (SiO ₂ ) is 1 to 3 μm, the furniture rails of the sliding rail 12 It has the characteristics of good weather resistance.

For other resin layers 13, phenolic resins can be used to make the slide rails have the characteristics of hardness, wear resistance and chemical resistance.

For the application of the other resin layer 13, the resin layer 13 of the yttrium-modified resin can be selected, and the thickness of the coating is 1-3 μm, so that the furniture rail 12 of the slide rail has good weather resistance and light and silent characteristics during sliding. .

<Example 3>

The slide rail coated with the chrome-cobalt oxide ceramic coating of the present invention can constitute a household hardware tool, and for a non-limiting embodiment, can be formed on the rail substrate 1 such as a door handle, a furniture armrest, a kitchen cabinet frame, etc. as described above. Chromium-cobalt oxide ceramic coating 3, and can adjust different gray scale values (L*) or average thickness (μm) according to requirements, the chromium-cobalt oxide ceramic coating 3 can meet the specifications of the salt spray test 96hr. .

Further, a phenolic resin or other resin resin layer 13 having a thickness of 5 to 15 μm or more is sprayed on the chrome-cobalt oxide ceramic plating layer 3; the adhesion of the resin layer 13 conforms to the requirements of ASTM-D3359, Test No. 4B. These household hardware tools are protected by the chrome-cobalt oxide ceramic coating 3 and the resin layer 13 which are excellent in weather resistance, and the blackness is sufficient to exhibit a noble black gloss.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

1‧‧‧Slide substrate (apparatus substrate)

3‧‧‧metallic ceramic of cobalt chromium oxide coating layer

5‧‧‧chromium element

6‧‧‧cobalt element

7‧‧‧Oxygen element

11‧‧‧linear slide rail

13‧‧‧resin layer

Claims (10)

A sliding rail coated with a chrome-cobalt oxide ceramic coating, the structure comprising a sliding rail substrate, a chromium-cobalt oxide ceramic coating layer and a resin layer; wherein the material of the sliding rail substrate is selected from the group consisting of iron and nickel Or one of chromium, molybdenum and copper or an alloy thereof; wherein the chromium-cobalt oxide ceramic coating is electroplated and adhered to the sliding rail substrate by chromium element, oxygen element, hydrogen element, cobalt element and phosphorus element The chromium-cobalt oxide ceramic coating has an average thickness of 5 μm or less and a gray-scale value (L*) of 65 or less; wherein the resin layer is attached to all or a part of the chromium-cobalt oxide ceramic plating layer. The sliding rail of the chrome-cobalt oxide ceramic coating according to claim 1, wherein the chromium-cobalt oxide ceramic coating component comprises at least the following groups: (1) the first group is: chromium (Cr) And chromium oxide (Cr ₂ O ₃ ), (2) the second group is: chromium hydroxide, wherein the chromium hydroxide is a trivalent chromium hydroxide Cr(OH) ₃ ) and chromium phosphide (CrP) Or a combination thereof; (3) the third group is: cobalt (Co) and cobalt oxide, wherein the cobalt oxide is one of divalent cobalt or trivalent cobalt oxide (Co ₃ O ₄ , Co ₂ O ₃ ) or The fourth group is: cobalt hydroxide and cobalt phosphide, wherein the cobalt hydroxide is a hydroxide of divalent cobalt or trivalent cobalt (Co(OH) ₂ , Co(OH) ₃ ) Or a combination thereof, wherein the cobalt phosphide is one of divalent cobalt or trivalent cobalt phosphide (CoP, Co ₂ P ₃ ) or a combination thereof. The weathering property of the portion of the chrome-cobalt oxide ceramic coating on the rail substrate is as follows, according to ASTM B-117 5 The % salt spray test standard is at least 96 hours. A sliding rail coated with a chromium-cobalt oxide ceramic coating according to claim 1, wherein the resin layer comprises cerium oxide, a polyoxyalkylene compound, a perfluorocarbon, and a perfluorinated tree. One of a lipid, a phenolic resin, an acrylic resin, an acrylic acid modified resin, or a combination thereof. A sliding rail coated with a chromium-cobalt oxide ceramic coating according to claim 4, wherein the adhesion of the resin layer is 4B or more according to the ASTM-D3359 test. A sliding rail coated with a chrome-cobalt oxide ceramic coating, the structure comprising a sliding rail substrate, an interposer, a chromium-cobalt oxide ceramic coating and a resin layer; wherein the sliding rail substrate is metal or a non-metallic material covering the surface layer of the interposer, wherein the interposer is composed of one of iron, nickel, chromium, copper, silver, gold or an alloy thereof, and is electroplated, electroless plated, or vapor-deposited. Formed by a combination thereof; wherein the chromium-cobalt oxide ceramic coating is electroplated and adhered to the interposer, and is composed of chromium element, oxygen element, hydrogen element, cobalt element and phosphorus element; the chromium-cobalt oxide ceramic coating layer The average thickness is 5 μm or less, and the gray scale value (L*) is 65 or less; wherein the resin layer is attached to all or a part of the chromium-cobalt oxide ceramic plating layer. The sliding rail of the chrome-cobalt oxide ceramic coating according to claim 6, wherein the chromium-cobalt oxide ceramic coating component comprises at least the following groups: (1) the first group is: chromium (Cr) And chromium oxide (Cr ₂ O ₃ ), (2) the second group is: chromium hydroxide, wherein the chromium hydroxide is a trivalent chromium hydroxide Cr(OH) ₃ ) and chromium phosphide (CrP) Or a combination thereof; (3) the third group is: cobalt (Co) and cobalt oxide, wherein the cobalt oxide is one of divalent cobalt or trivalent cobalt oxide (Co ₃ O ₄ , Co ₂ O ₃ ) or The fourth group is: cobalt hydroxide and cobalt phosphide, wherein the cobalt hydroxide is a hydroxide of divalent cobalt or trivalent cobalt (Co(OH) ₂ , Co(OH) ₃ ) Or a combination thereof, wherein the cobalt phosphide is one of divalent cobalt or trivalent cobalt phosphide (CoP, Co ₂ P ₃ ) or a combination thereof. The weathering property of the portion of the chrome-cobalt oxide ceramic coating layer plated on the interposer according to the sliding rail of the chrome-cobalt oxide ceramic coating layer described in claim 6 ASTM B-117 5% salt spray test standard for at least 96 hours. A sliding rail coated with a chromium-cobalt oxide ceramic coating according to claim 6, wherein the resin layer comprises cerium oxide, a polyoxyalkylene compound, a perfluorocarbon, a perfluoro resin, a phenol resin, and an acrylic acid. One of a resin, an acrylic plastomer modified resin, or a combination thereof. A sliding rail coated with a chromium-cobalt oxide ceramic coating according to claim 7, wherein the adhesion of the resin layer is 4B or more according to the ASTM-D3359 test.