US3451839A - Process for the metallization of annular pieces - Google Patents
Process for the metallization of annular pieces Download PDFInfo
- Publication number
- US3451839A US3451839A US455253A US3451839DA US3451839A US 3451839 A US3451839 A US 3451839A US 455253 A US455253 A US 455253A US 3451839D A US3451839D A US 3451839DA US 3451839 A US3451839 A US 3451839A
- Authority
- US
- United States
- Prior art keywords
- pieces
- annular
- annular pieces
- metallization
- mandrel
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 11
- 238000001465 metallisation Methods 0.000 title description 5
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000007373 indentation Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 2
Images
Classifications
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
-
- 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
- C23C4/01—Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated
Definitions
- annular pieces are mounted, one beside (or on top of) the other, through their central bore, on a mandrel so as to form a line or string of pieces on the outer continuous surface of which a metal powder will be sprayed. After the entire outer surface of these annular pieces is covered with a thin metal coating, the pieces are separated one from the other by breaking the coating covering them and sliding them out of the mandrel.
- This process is not satisfactory because small cracks appear on the coating of metal when the annular pieces are taken apart due to the disruption caused on the continuous metal surface.
- the external edge of the annular pieces is given a determined profile so as to obtain a circular groove between two adjoining annular pieces.
- the external surface of the line of pieces is discontinuous and the use of separating disks is avoided.
- the external corners or edges of the annular pieces formed by the intersection of the faces in contact with one an- 3,451,839 Patented .June 24, 1969 other when the pieces are mounted on the mandrel and their outer surfaces, are provided with circular furrows creating, between two adjoining pieces, a circular groove, of preferably square section, thereby forming a disruption on the outer surface of the pile.
- FIGURE 1 is a partial section view of three adjoining annular pieces as they appear when the prior art process using separating disks is practiced.
- FIGURE 2 is a partial section view of three annular pieces according to the present invention.
- FIGURE 1 three annular pieces such as 1 and 2, of a line which can comprise a greater number of pieces, are mounted, one beside the other, through their central bore 4, on a cylindrical mandrel 3. These annular pieces 1, and 2 are separated by a disk 5, the diameter of which is smaller than the diameter of the pieces, in such a way that a circular groove 6 is formed between the annular pieces. This groove 6 creates a disruption on the external surface 7 of the annular pieces thus mounted, which surface is to be coated with metal powder by any known means. a
- annular pieces 9 and 10 are mounted on the mandrel 11 through their central bore as in the preceding example, but each piece is mounted beside the other without placing the small disk 5 between one piece and the following one, their faces 12 being thus in contact one with the other.
- the external corners or edges formed by the faces 12 of the annular pieces and their outer surface 13 on which the metal is to be coated, are provided with circular furrows 15 which create an annular groove 16 of preferably square section between the two adjoining pieces 9 and 10 when these are placed one beside the other.
- These annular grooves create an equal number of disruptions of the external surface 13 of the pile of annular pieces 9, 10, and the string may comprise a greater number of pieces.
- a process for applying a metal coating to the exposed outer surface of a stack of at least two articles in j uxtapositional arrangement and having said exposed surfaces of said articles in substantial alignment, following which application said articles are separated comprising constructing a continuous indentation or furrow at at least one planar intersection of a face and outer surface of sufiicient number of said articles such that following arrangement and alignment at least one continuous indentation resides at the intersection of the outer surface of said stack and each boundary between adjacent articles, said indentation or furrow having such size and shape whereby the coated articles can be separated without damaging said coating, and thereafter applying a metal coating to said exposed outer surface of said stack.
- a process for the metallization of annular pieces in which the pieces are mounted in abutting relationship by means of their central bores, on a cylindrical mandrel to form a string of pieces which is first to be covered with a metal coating and then separated so as to form individually coated pieces; characterized in that the outer edges and surfaces of the contacting faces of each annular piece are provided with circular furrows creating, between two adjoining annular pieces a circular groove of square section which creates a disruption on said outer surface of the string and therefore allows the annular elements to be easily separated, after they have been coated, without damaging the coating.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
- Powder Metallurgy (AREA)
- Forging (AREA)
Description
Jun 24, 1969 A. cAuvm PROCESS FOR THE METALLIZATION 0F ANNULAR PIECES Filed May 12, 1965 H9. I PRIOR Mr 1 2 Fig.2
Invenl or HhJr-Cauvin RIM nHorn 2Y United States Patent 9 4 6 Int. Cl. Bc 3/20; 1365b 13/06; B44d 1/52 US. Cl. 117-43 2 Claims ABSTRACT OF THE DISCLOSURE A process is disclosed for the metallization of annular pieces. Each annular piece has two faces and an exposed surface. The pieces are strung on a mandrel with the exposed surfaces in alignment and simultaneously metallized. Each annular piece is provided with a continuous indentation or furrow at at least one planar intersection of a face and its exposed surface such that when the pieces are aligned on the mandrel a circular groove of square section creates a disruption on the outer surface of the aligned pieces. This allows the annular pieces to be easily separated after metallization without damaging the coating.
According to a known process for metallizing annular pieces, these pieces are mounted, one beside (or on top of) the other, through their central bore, on a mandrel so as to form a line or string of pieces on the outer continuous surface of which a metal powder will be sprayed. After the entire outer surface of these annular pieces is covered with a thin metal coating, the pieces are separated one from the other by breaking the coating covering them and sliding them out of the mandrel. This process, however, is not satisfactory because small cracks appear on the coating of metal when the annular pieces are taken apart due to the disruption caused on the continuous metal surface.
To remedy this drawback, it was known (see FIGURE 1) to use a process in which a small disk was placed between each annular piece and the one next to it, said small disk having a smaller diameter than the diameter of the annular pieces, in order to form a circular groove between each annular piece. In this way, a discontinuous outer surface of the line of pieces was obtained and it was possible to disjoint the annular pieces without the risk of forming cracks in the metal coating.
However, this process is not satisfactory either since it makes the metallizing operations complicated by requiring the use of separating disks which have to be inserted between the annular pieces, thereby increasing the cost of labor.
According to the present invention, the external edge of the annular pieces is given a determined profile so as to obtain a circular groove between two adjoining annular pieces. In this way, the external surface of the line of pieces is discontinuous and the use of separating disks is avoided. Thus, under the present invention the external corners or edges of the annular pieces, formed by the intersection of the faces in contact with one an- 3,451,839 Patented .June 24, 1969 other when the pieces are mounted on the mandrel and their outer surfaces, are provided with circular furrows creating, between two adjoining pieces, a circular groove, of preferably square section, thereby forming a disruption on the outer surface of the pile.
Other useful features of this invention will emerge from the following description of one embodiment of the invention, which is merely given as a. non-limitative example and shown in the annexed drawings.
FIGURE 1 is a partial section view of three adjoining annular pieces as they appear when the prior art process using separating disks is practiced.
FIGURE 2 is a partial section view of three annular pieces according to the present invention.
In FIGURE 1, three annular pieces such as 1 and 2, of a line which can comprise a greater number of pieces, are mounted, one beside the other, through their central bore 4, on a cylindrical mandrel 3. These annular pieces 1, and 2 are separated by a disk 5, the diameter of which is smaller than the diameter of the pieces, in such a way that a circular groove 6 is formed between the annular pieces. This groove 6 creates a disruption on the external surface 7 of the annular pieces thus mounted, which surface is to be coated with metal powder by any known means. a
In the embodiment of the invention shown on FIG- URE 2, the annular pieces 9 and 10 are mounted on the mandrel 11 through their central bore as in the preceding example, but each piece is mounted beside the other without placing the small disk 5 between one piece and the following one, their faces 12 being thus in contact one with the other. The external corners or edges formed by the faces 12 of the annular pieces and their outer surface 13 on which the metal is to be coated, are provided with circular furrows 15 which create an annular groove 16 of preferably square section between the two adjoining pieces 9 and 10 when these are placed one beside the other. These annular grooves create an equal number of disruptions of the external surface 13 of the pile of annular pieces 9, 10, and the string may comprise a greater number of pieces.
This solution offers the same advantages as those of the process precedently described and shown on FIG- URE 1, but provides the further advantage of avoiding the use of the small disks 5 which make the operation more complicated and expensive.
What I claim:
1. A process for applying a metal coating to the exposed outer surface of a stack of at least two articles in j uxtapositional arrangement and having said exposed surfaces of said articles in substantial alignment, following which application said articles are separated, comprising constructing a continuous indentation or furrow at at least one planar intersection of a face and outer surface of sufiicient number of said articles such that following arrangement and alignment at least one continuous indentation resides at the intersection of the outer surface of said stack and each boundary between adjacent articles, said indentation or furrow having such size and shape whereby the coated articles can be separated without damaging said coating, and thereafter applying a metal coating to said exposed outer surface of said stack.
2. A process for the metallization of annular pieces in which the pieces are mounted in abutting relationship by means of their central bores, on a cylindrical mandrel to form a string of pieces which is first to be covered with a metal coating and then separated so as to form individually coated pieces; characterized in that the outer edges and surfaces of the contacting faces of each annular piece are provided with circular furrows creating, between two adjoining annular pieces a circular groove of square section which creates a disruption on said outer surface of the string and therefore allows the annular elements to be easily separated, after they have been coated, without damaging the coating.
4 References Cited UNITED STATES PATENTS D. 95,123 4/1935 -Ebbert D45-10 1,814,592 7/1931 Geiger 134-449 X 2,000,226 5/1935 Fry l17-43 X ALFRED L. LEAVITT, Primary Examiner.
0 C. R. WILSON, Assistant Examiner.
US. Cl. X.R.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR974623A FR1403856A (en) | 1964-05-15 | 1964-05-15 | Improvement of a metallization process for annular parts |
Publications (1)
Publication Number | Publication Date |
---|---|
US3451839A true US3451839A (en) | 1969-06-24 |
Family
ID=8830117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US455253A Expired - Lifetime US3451839A (en) | 1964-05-15 | 1965-05-12 | Process for the metallization of annular pieces |
Country Status (6)
Country | Link |
---|---|
US (1) | US3451839A (en) |
BE (1) | BE663971A (en) |
ES (1) | ES312953A1 (en) |
FR (1) | FR1403856A (en) |
GB (1) | GB1044247A (en) |
OA (1) | OA01998A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3850669A (en) * | 1972-09-25 | 1974-11-26 | Toyo Kogyo Co | Metal spraying process |
US3953623A (en) * | 1971-12-10 | 1976-04-27 | Johannes Cornelis Das | Process of selectively coating earthenware articles |
US5033181A (en) * | 1990-06-08 | 1991-07-23 | Illinois Tool Works Inc. | Method for manufacturing nails |
US20040265092A1 (en) * | 2003-06-30 | 2004-12-30 | Lat Geronimo E. | Partially coated fastener assembly and method for coating |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4032672A (en) * | 1975-08-05 | 1977-06-28 | Ramsey Corporation | Method for coating parts |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1814592A (en) * | 1929-08-22 | 1931-07-14 | Union Switch & Signal Co | Apparatus for use in the manufacture of rectifiers |
US2000226A (en) * | 1932-02-29 | 1935-05-07 | Lehon Co | Method of treating asphalt shingles and composition therefor |
-
1964
- 1964-05-15 FR FR974623A patent/FR1403856A/en not_active Expired
-
1965
- 1965-05-12 US US455253A patent/US3451839A/en not_active Expired - Lifetime
- 1965-05-13 GB GB20334/65A patent/GB1044247A/en not_active Expired
- 1965-05-14 BE BE663971D patent/BE663971A/xx unknown
- 1965-05-14 ES ES0312953A patent/ES312953A1/en not_active Expired
- 1965-05-14 OA OA51714A patent/OA01998A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1814592A (en) * | 1929-08-22 | 1931-07-14 | Union Switch & Signal Co | Apparatus for use in the manufacture of rectifiers |
US2000226A (en) * | 1932-02-29 | 1935-05-07 | Lehon Co | Method of treating asphalt shingles and composition therefor |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3953623A (en) * | 1971-12-10 | 1976-04-27 | Johannes Cornelis Das | Process of selectively coating earthenware articles |
US3850669A (en) * | 1972-09-25 | 1974-11-26 | Toyo Kogyo Co | Metal spraying process |
US5033181A (en) * | 1990-06-08 | 1991-07-23 | Illinois Tool Works Inc. | Method for manufacturing nails |
US20040265092A1 (en) * | 2003-06-30 | 2004-12-30 | Lat Geronimo E. | Partially coated fastener assembly and method for coating |
US7273337B2 (en) * | 2003-06-30 | 2007-09-25 | Illinois Tool Works Inc. | Partially coated fastener assembly and method for coating |
US20070264434A1 (en) * | 2003-06-30 | 2007-11-15 | Lat Geronimo E | Partially coated fastener assembly and method for coating |
US7416376B2 (en) | 2003-06-30 | 2008-08-26 | Illinois Tool Works, Inc. | Partially coated fastener assembly and method for coating |
US20080273943A1 (en) * | 2003-06-30 | 2008-11-06 | Lat Geronimo E | Partially coated fastener assembly and method for coating |
US7641432B2 (en) | 2003-06-30 | 2010-01-05 | Illinois Tool Works, Inc. | Partially coated fastener assembly and method for coating |
US20100119329A1 (en) * | 2003-06-30 | 2010-05-13 | Lat Geronimo E | Partially coated fastener assembly and method for coating |
US8353657B2 (en) | 2003-06-30 | 2013-01-15 | Illinois Tool Works Inc. | Partially coated fastener assembly and method for coating |
Also Published As
Publication number | Publication date |
---|---|
GB1044247A (en) | 1966-09-28 |
ES312953A1 (en) | 1965-08-16 |
OA01998A (en) | 1970-05-05 |
FR1403856A (en) | 1965-06-25 |
BE663971A (en) | 1965-09-01 |
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