EP1858814A1 - Revetements texture anti-usure de composants utilises dans la fabrication d'ampoules en verre - Google Patents

Revetements texture anti-usure de composants utilises dans la fabrication d'ampoules en verre

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Publication number
EP1858814A1
EP1858814A1 EP06738531A EP06738531A EP1858814A1 EP 1858814 A1 EP1858814 A1 EP 1858814A1 EP 06738531 A EP06738531 A EP 06738531A EP 06738531 A EP06738531 A EP 06738531A EP 1858814 A1 EP1858814 A1 EP 1858814A1
Authority
EP
European Patent Office
Prior art keywords
coating
particles
mold
metal
quench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06738531A
Other languages
German (de)
English (en)
Inventor
Timothy Francis Dumm
Kan-Yin Ng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamond Innovations Inc
Original Assignee
Diamond Innovations Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diamond Innovations Inc filed Critical Diamond Innovations Inc
Publication of EP1858814A1 publication Critical patent/EP1858814A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/12—Blowing glass; Production of hollow glass articles starting from a ribbon of glass; Ribbon machines
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/48—Use of materials for the moulds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1646—Characteristics of the product obtained
    • C23C18/165—Multilayered product
    • C23C18/1651—Two or more layers only obtained by electroless plating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C23C18/1662—Use of incorporated material in the solution or dispersion, e.g. particles, whiskers, wires
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/38—Coating with copper
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
    • C25D15/02—Combined electrolytic and electrophoretic processes with charged materials

Definitions

  • a mold section 10 may include a housing 11 and an interior cavity section 12.
  • the interior sections may include one or more vents 13 and a coating to both retain moisture and reduce adhesion of the glass to the mold cavity.
  • This coating may be made by painting a resin, such as linseed oil, onto the bare steel surface of the inside of a mold. While the oil is still wet, a tightly sized cork dust may be sprinkled onto the oil layer. This oil is then allowed to air dry, after which the excess cork is tapped off of the coating.
  • the molds are placed into an oven and baked for 3 to 4 hours at 400° F.
  • FIGS. IB and 1C depict photomicrographs of this prior art coating on a bulb quench mold at 15X and 150X magnification, respectively.
  • the present disclosure relates to a quench mold that may include an interior cavity and a coating on the interior cavity wherein the coating may include a plurality of metal-coated particles.
  • the particles may include superabrasive particles and the metal may include titanium, chromium, nickel, cobalt, copper, tantalum, iron, or silver.
  • the particles may include graphite particles.
  • the metal-coated particles may also be coated with a superabrasive material.
  • the particles may include graphite with a superabrasive coating material and the metal may include copper or nickel.
  • the coating may have an overall thickness of about 50 to about 500 microns and may retain a volume of water having a volume that is about 40 mm 3 to about 90 mm 3 per cubic millimeter of the coating.
  • the coating may include a plurality of superabrasive particles in a metal matrix.
  • the superabrasive particles may include a diameter of from about 0.1 ⁇ m to about 1.0 ⁇ m and the metal may include nickel, chrome, copper, cobalt, or alloys thereof.
  • the coating may include a thickness of about 50 ⁇ m to about 500 ⁇ m.
  • the coating may include a plurality of metal particles in a metal matrix.
  • the metallic particles may include, for example, copper, steel, brass, bronze, or cobalt.
  • FIG. IA shows an exemplary glass light bulb quench mold.
  • FIG. IB depicts a photomicrograph of the prior art coating at 15X magnification.
  • FIG. 1C depicts a photomicrograph of the prior art coating at 150X magnification.
  • FIG. 2 shows exemplary elements of various coatings of the present disclosure.
  • FIG. 3 shows exemplary elements of alternate coatings of the present disclosure.
  • FIG. 4 shows a third embodiment of a coating of the present disclosure.
  • FIG. 5 shows a fourth embodiment of a coating of the present disclosure.
  • FIG. 6 shows a fifth embodiment of a coating of the present disclosure.
  • FIG. 7 shows the initial water retention of various coatings.
  • FIG. 8 depicts a microscopic image of a titanium coated diamond coating of the present disclosure.
  • FIG. 9 depicts a microscopic image of the composite coated nickel- graphite particle coating of the present disclosure as applied to a mold set surface.
  • FIG. 10 depicts a microscopic image of the composite coated nickel- graphite particle coating of the present disclosure as applied to a textured mold set surface.
  • FIG. 11 depicts a microscopic image of the nickel graphite coating of the present invention.
  • FIG. 12 depicts a microscopic image of a composite coated nickel- graphite particle coating of the present disclosure.
  • a superabrasive material is any material having a Vickers hardness of greater than about 3000 kg/MM 3 , or optionally more than about 3200 kg/MM 3 .
  • superabrasive composite materials such as those using diamond or cubic boron nitride (cBN)
  • cBN cubic boron nitride
  • a layer comprising diamond and/or cBN particles 20 and metal 21 may be plated onto the inside surface of a quench mold 22 using either electroless or electrolytic methods.
  • the coating may be highly resistant to abrasive wear, form a smooth surface, resist corrosion, and conduct both heat and electricity.
  • Suitable methods of plating are generally described in, for example, U.S. Patent Nos. 4,997,686 and 5,145,517, the disclosures of which are incorporated herein by reference in their entirety. Since the coating can be applied to a structural material, such as steel, reinforced composites, ceramics, or plastics, catastrophic failure in service may be reduced. Part life may be extended due to the improved abrasion, erosion, and corrosion resistance imparted by the coating.
  • the layer of diamond or cBN may have a diameter thickness that is equal to more than the average size of one superabrasive particle, and the metal may include, without limitation, nickel, chrome, cobalt or copper or alloys thereof.
  • the average particle size of superabrasive particles used may range from about 0.1 ⁇ m to about 50 ⁇ m in maximum outside diameter, or optionally from about 0.25 ⁇ rn to about 1.0 ⁇ m in diameter. Other sizes are possible.
  • coating layer thicknesses may range from about 50 ⁇ m to about 500 ⁇ m, or from about 100 ⁇ m to about 200 ⁇ m in various embodiments.
  • a layer of copper or other metallic particles 30 within a continuous metal matrix 31 may be co-deposited onto a quench mold 32 using either electroless or electrolytic coating methods.
  • This coating may be highly resistant to abrasive wear, form a rough and convoluted surface, resist corrosion, conduct both heat and electricity, and retain a significant amount of surface moisture. Since the coating may be applied to a structural material, such as steel, reinforced composites, ceramics or plastics, catastrophic failure in service may be reduced. Part life may be extended due to the improved abrasion, erosion, and corrosion resistance imparted by the coating, but may not be extended as long as a similar coating using diamond particles.
  • the softer coating may still be harder than cork, but it may not expose the glass component to diamond that may potentially create micro-scratching.
  • the layer of metal particles may include, without limitation, copper, steel, brass, bronze, or cobalt, and it may have a thickness of at least one particle.
  • the continuous metal matrix may include, without limitation, nickel or copper.
  • preferred (but not required) particle sizes may range from about 0.1 ⁇ m to about 50 ⁇ m, or from about 0.25 ⁇ m to about 1.0 ⁇ m.
  • Preferred (but not required) coating thicknesses may range from about 50 ⁇ m to about 500 ⁇ m, or from about 100 ⁇ m to about 200 ⁇ m.
  • a layer of metallic- coated diamond or cBN particles 40, within a metal matrix 41, may be plated onto the inside surface of a quench mold 42 using either electroless or electrolytic methods.
  • the metallic coating 43 on the surface of the diamond or cBN particles 40 which may include, without limitation, titanium, chromium, nickel, cobalt, copper, tantalum, iron, silver or combinations or multiple layers of any of the above, may allow the coating layer of the present disclosure to achieve the desired function.
  • the coating layer may have a thickness of more than one superabrasive particle and the metal matrix may include, without limitation, nickel or copper.
  • preferred (but not required) particle sizes and coating layer thicknesses may be similar to those described for the first and second embodiments above.
  • the metallic coating on the ' surface of the superabrasive particles may or may not coat the entire surface of each particle.
  • the metallic coating has a maximum thickness that is less than the maximum diameter of the superabrasive particle.
  • a quench mold interior cavity 51 may be coated with a layer of metal-coated graphite particles 50.
  • the layer may be applied to a quench mold 51 via a thermal spray process.
  • the metallic coating 52 on the particles may include, without limitation, nickel or copper.
  • the metal-coated graphite particle layer applied in this technique may be a relatively porous and open-structure and may be capable of retaining a considerable amount of water.
  • the graphite particles 50 may range in size from about 10 to about 500 microns. In another embodiment, the particles 50 may be available in sizes ranging from 50 to 150 microns. Other particle sizes are possible.
  • the particle layer may have a thickness of between about 0.001 inches to about 0.050 inches. Alternately, the particle layer may have an overall thickness of about 0.1 to about 500 ⁇ m, about 50 ⁇ m to about 500 ⁇ m, about 100 ⁇ m to about 200 ⁇ m, or of other suitable sizes.
  • the weight-percentage of metal to graphite may be about 85% metal to about 15% graphite. In an alternate embodiment, the weight-percentage of metal to graphite may be about 60% to about 40%, respectively. Alternate ranges may include about 75% metal to about 25% graphite, or about 80% metal to about 20% graphite.
  • coated graphite particles may also provide a non-wetting surface against the molten glass. This attribute may prevent the molten glass from sticking to the coating before it is quenched.
  • a layer of metal- graphite particles 60 as described above may include an additional coating of a superabrasive material such as diamond or cubic boron nitride 61.
  • the additional coating 61 may be applied to a quench mold 63 to strengthen the metal-graphite coating 62 and improve abrasion resistance.
  • the composite coating 61 added to the metal-graphite coating 62 may be thin, such as about 1 micron to about 25 microns, or about 2 microns to about 10 microns, so that the overall porosity and water retention capability of the metal- graphite coating 62 is not significantly reduced.
  • the metal-graphite coating 62 may have an open structure, optionally the additional coating 61 may uniformly coat all of the exposed metal-graphite coating 62.
  • the composite overcoat 61 may also improve adhesion between the metal-graphite coating 62 and the relevant graphite particle 60.
  • the particles may be inert to the electroless chemistry in which they are suspended.
  • the diamond particles suspended in an electroless plating bath may not be autocatalytic to the nickel dissolved in solution and nickel may not deposit on the surface of the diamond.
  • the resulting composite layer may be uniform and may conform to the substrate that the coating is applied to.
  • the resulting surface roughness of the coating may be about 0.8 microns as-plated.
  • a metallic layer when deposited onto the surface of the superabrasive or graphite particles, this layer may become autocatalytic to the nickel or other plating metal in a plating bath.
  • Thin layers of titanium and/or chrome may be deposited onto the diamond or cBN particles using chemical vapor deposition (CVD) and/or physical vapor deposition (PVD) techniques.
  • the coating on each particle may comprise less than 50% of the over all diameter of each particle, hi various embodiments, the coating thickness maybe less than about 20%, 10%, 5% or even 1% of the overall particle size.
  • CVD chemical vapor deposition
  • PVD physical vapor deposition
  • the surface area of the metal coating may be significantly higher than what is normally recommended for the stable operation of the bath.
  • the bath is suitably activated such that autocatalytic deposition of metal from the plating solution occurs, metal in solution begins plating at a high rate primarily because of the high surface area of metal that may be coated on the particles.
  • the metal-coated particles may become entrapped on the surface of the substrate being coated, but because of the rapid depletion of metal from the plating solution, the coating layer may form quickly and may have many nodules that create the appearance of the cork and resin surface.
  • the resulting surface features of this coating may have a surface roughness of about 40 microns, a peak to valley height of about 250 microns, and a mean peak-to-valley distance of about 200 microns, and may have the ability to retain surface moisture. Deviations of +/- 50% are possible for each of these values.
  • the overall thickness of the composite coating in this case may be on the order of about 200 to about 500 microns, although other sizes are possible, which is thicker than composite coatings made with particles that do not have metallic coatings. It is also worth noting that the nodular features formed by the rapid decomposition of the plating bath may be on the order of about 50 microns to about 300 microns in diameter. Other sizes are possible.
  • the composite coating may be highly resistant to abrasive wear.
  • the coating may be applied to a structural material, such as steel, reinforced composites, ceramics, or plastics and, therefore, may reduce catastrophic failure in service. Part life may be extended due to the improved abrasion, erosion, and corrosion resistance imparted by the coating.
  • Coatings described herein may provide suitable porosity and water retention characteristics.
  • the coated article after soaking a coated quench mold in water, the coated article may retain a volume of water that is as much as about 0.4 mm to about 0.9 mm per cubic millimeter of the coating.
  • a primary function of a light bulb quench mold is for retaining moisture on the surface of and within the pores of the coating.
  • the effectiveness of a quench mold is directly proportional to the amount of water that can be retained in the coating.
  • a technique was developed for measuring the moisture retention of coatings on thin steel panels that have been coated with the composite diamond coatings (CDC). A series of lab tests were conducted whereby several small (2in. x 3in.) steel panels were coated with CDC-8, CDC-15, CDC-Ti (as described in more detail below) and the above-mentioned cork coating.
  • the CDC-8, -15 and -Ti coatings were applied to the steel panels using techniques based on U.S. Patent Number RE33767, the disclosure of which is incorporated herein by reference, and using technology described in U.S. Patent Number 6,306,466, the disclosure of which is incorporated herein by reference.
  • the CDC-8 coating was made of 8 ⁇ m diamond particles in a matrix of electroless nickel phosphorous and the thickness of the coating was approximately 0.002 inches.
  • the CDC-15 coating was made of 15 ⁇ m diamond particles in a matrix of electroless nickel phosphorous and the thickness of the coating was approximately 0.002 inches.
  • the CDC-Ti coating was made of 8 ⁇ m diamond particles having a titanium coating on the outer layer of the diamond in a matrix of electroless nickel phosphorous and the thickness of the composite coating was greater than 0.004 inches.
  • Example 1 A cork/resin panel was weighed on a scale and tared to zero, then dipped in water to a common level in a beaker of water. Excess water was shaken off and the panel was immediately weighed and the weight of retained moisture was recorded. The panel was then allowed to stand in an upright position for one minute and then re-weighed. The series of standing and weighing was repeated for seven minutes. As can be seen from the results in FIG. 7, the cork coating that is the standard coating used in quench molds today retained about 0.48 grams of water.
  • Example 2 Panels were coated with composite diamond coating made with 8/xm diamond (CDC-8) and with 15 ⁇ m (CDC-15) diamond and were weighed on a scale and tared to zero, then dipped in water to a common level in a beaker of water. Excess water was shaken off and the panels were immediately weighed and the weight of retained moisture was recorded. The panels were then allowed to stand in an upright position for one minute and then re-weighed. The series of standing and weighing was repeated for seven minutes. As can be seen from the results in FIG. 7, the composite diamond coatings on the panels containing CDC-8 and CDC-15 diamond retained approx. 0.10 grams of water.
  • Example 3 A panel coated with composite diamond coating made with 8 ⁇ m diamond that was coated with a thin layer of titanium (Ti assay of 30% by weight) was weighed on a scale and tared to zero, then dipped in water to a common level in a beaker of water. Excess water was shaken off and the panel was immediately weighed and the weight of retained moisture was recorded. The panel was then allowed to stand in an upright position for one minute and then re-weighed. The series of standing and weighing was repeated for seven minutes.
  • FIG. 8 depicts a microscopic image of a titanium coated diamond coating of the present disclosure. As can be seen from the results in Figure 7, the composite diamond coating having the Ti-coated diamond particles (CDC-Ti) retained approximately 0.26 grams of water.
  • Example 4 In a full-scale production ribbon machine used for making conventional incandescent light bulbs, the main component of interest and testing was the bulb quench mold. In the test, two new mold sets were obtained from a large inventory of similar molds that were for a high- volume standard bulb. The test included applying composite diamond coating to one set of molds. This coating utilized 8/xm diamond at a diamond volume concentration of approximately 40% and a thickness of 0.001 inches (25 ⁇ m). To the other mold set, the inner surface of the mold was first laser engraved to impart a texture that was similar to that of the existing sacrificial coating. After the mold was engraved, a similar composite diamond coating was applied that was used in the first mold set. The resulting surface for mold set 1 is shown in FIG. 9, and the resulting surface for mold set 2 is shown in FIG. 10.
  • Example 5 Steel panels were coated with a nickel-graphite coating. Prior to coating, the surface of the panels were cleaned with alcohol to remove any surface grease and then were grit-blasted with a #30 aluminum oxide powder to induce surface roughness. A base layer of Metco 450 thermal spray coating was applied at approx. 0.002 inches for bonding of the nickel-graphite layer.
  • the nickel- graphite powder used was 307NS, which is commercially available from Sulzer Metco. This powder was applied using a Type 5P gun using oxy-acetylene gas with system parameters recommended by Sulzer Metco. The nickel-graphite layer was applied at 0.004 inches and 0.015 inches.
  • FIG. 11 is a microscopic image of the nickel-graphite coating on a steel panel.
  • a water retention test was performed on the nickel-graphite panel and the total amount of water retained in the coating was measured. As shown in FIG. 7, the amount of water retained by the steel panel coated on one side (thermal spray) is approximately 0.72 grams.
  • Example 6 A steel panel derived from Example 5 was further processed by applying a composite coating as described in Example 2.
  • the composite coating in this example used a 2 micron diamond particle in an electroless nickel matrix. The thickness of the coating is about lOmicrons. As can be seen from Figure 12, the diamond, graphite particle and nickel matrix are clearly seen. Water retention and abrasion tests were also performed on this panel and the other test panels from previous examples. Results of the water retention test are shown in FIG. 7 (TS + CDC) where it can be seen that the panel retained about 0.38 grams of water.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Chemically Coating (AREA)

Abstract

L'invention concerne un moule trempé (22) incluant une cavité intérieure et un revêtement (20,21) sur cette cavité intérieure. Le revêtement inclut une pluralité de particules (20), comme des particules enduites de métal, des particules super-abrasives ou des particules de métal, dans une matrice métallique.
EP06738531A 2005-03-16 2006-03-16 Revetements texture anti-usure de composants utilises dans la fabrication d'ampoules en verre Withdrawn EP1858814A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66229205P 2005-03-16 2005-03-16
PCT/US2006/009479 WO2006101956A1 (fr) 2005-03-16 2006-03-16 Revetements texture anti-usure de composants utilises dans la fabrication d'ampoules en verre

Publications (1)

Publication Number Publication Date
EP1858814A1 true EP1858814A1 (fr) 2007-11-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06738531A Withdrawn EP1858814A1 (fr) 2005-03-16 2006-03-16 Revetements texture anti-usure de composants utilises dans la fabrication d'ampoules en verre

Country Status (4)

Country Link
EP (1) EP1858814A1 (fr)
CN (1) CN101142145B (fr)
BR (1) BRPI0609821A2 (fr)
WO (1) WO2006101956A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7562858B2 (en) * 2005-03-16 2009-07-21 Diamond Innovations, Inc. Wear and texture coatings for components used in manufacturing glass light bulbs
CN106086760B (zh) * 2016-08-19 2019-04-02 富耐克超硬材料股份有限公司 耐磨复合涂层及其制备方法和应用
CN106119763B (zh) * 2016-08-19 2019-04-02 富耐克超硬材料股份有限公司 超硬复合涂层刀具及其制备方法
CN106591760B (zh) * 2016-12-26 2019-04-02 富耐克超硬材料股份有限公司 耐磨复合喷涂微粉和耐磨复合涂层及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE571245A (fr) * 1957-09-16
GB1333055A (en) * 1971-10-05 1973-10-10 Glass Bulbs Ltd Moulds for forming hollow glass articles
GB2039879A (en) * 1979-01-16 1980-08-20 United Glass Ltd Shaping glassware
JPH0735259B2 (ja) * 1986-10-14 1995-04-19 東洋製罐株式会社 ガラス成形用金型
JPH10330122A (ja) * 1997-05-27 1998-12-15 Asahi Glass Co Ltd ガラス成形用金型
CA2292328A1 (fr) * 1998-12-14 2000-06-14 Praxair S. T. Technology, Inc. Revetement antiadhesif pour moules de produits en verre
US20050014010A1 (en) * 2003-04-22 2005-01-20 Dumm Timothy Francis Method to provide wear-resistant coating and related coated articles

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2006101956A1 *

Also Published As

Publication number Publication date
CN101142145B (zh) 2013-11-20
BRPI0609821A2 (pt) 2010-04-27
CN101142145A (zh) 2008-03-12
WO2006101956A1 (fr) 2006-09-28

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