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"A Process Of Depositing Zn Ni Cu Coating On Metal Products To Act As An Antibacterial Coating And A Coating Composition Having High Corrosion Resistance In Foul Fuel Media"
The invention relates to a process of depositing Zn-Ni-Cu coating on metalproducts to act as an antibacterial coating, comprising the steps of :-preparing a thermal spray coating in the form of powder mixture; checkingthe sprayability of the coating in a Hall flowmeter; heating the powdermixture in an oven at about 100°C to remove moisture from the mixture;sand blasting the metal products using alumina grits; and thermal spraying ofthe dried coating on the metal products by a high velocity oxy fuel (HVOF)gun by raster scanning process at the rate of 5 cm/sec manually with HVOFgun, wherein the powder mixture essentially consists of a metallic Zincpowder with >90% purity, a metallic Ni-powder with >99.5% purity, andatomized copper powder with >95% purity, wherein the particles of zincpowder having sizes - 325 mesh and that of Ni and in particles is -400 meshwhich are mixed by a vibratory cup mill for about 02 minutes, and whereinthe composition of the powder mixture is in the ratio of 80% Zn, 10% nickel,and 10% copper which exhibits higher corrosion resistance to foul fuel mediaincluding increase in antibacterial characteristics.
Notices, Deadlines & Correspondence
Patent Information
Applicants
TATA STEEL LIMITED
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Inventors
1. T VENUGOPALAN
2. RAJESH PAIS
3. ASHISH SHARMA
4. KRISHNAKANT TEKRIWAL
5. D.D.N SINGH
6. BHOLA NATH SEN
7. LOKESH CHANDRA PATHAK
8. ABHILASH
9. SUMAN KUMARI MISHRA
10. SKTIWARI
Specification
The invention relates to a process of depositing Zn-Ni-Cu coating on metal
products to act as an antibacterial coating, comprising the steps of :-
preparing a thermal spray coating in the form of powder mixture; checking
the sprayability of the coating in a Hall flowmeter; heating the powder
mixture in an oven at about 100°C to remove moisture from the mixture;
sand blasting the metal products using alumina grits; and thermal spraying of
the dried coating on the metal products by a high velocity oxy fuel (HVOF)
gun by raster scanning process at the rate of 5 cm/sec manually with HVOF
gun, wherein the powder mixture essentially consists of a metallic Zinc
powder with >90% purity, a metallic Ni-powder with >99.5% purity, and
atomized copper powder with >95% purity, wherein the particles of zinc
powder having sizes - 325 mesh and that of Ni and in particles is -400 mesh
which are mixed by a vibratory cup mill for about 02 minutes, and wherein
the composition of the powder mixture is in the ratio of 80% Zn, 10% nickel,
and 10% copper which exhibits higher corrosion resistance to foul fuel media
including increase in antibacterial characteristics.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1401-Kol-2012-(13-12-2012)SPECIFICATION.pdf | 2012-12-13 |
| 2 | 1401-Kol-2012-(13-12-2012)FORM-3.pdf | 2012-12-13 |
| 3 | 1401-Kol-2012-(13-12-2012)FORM-2.pdf | 2012-12-13 |
| 4 | 1401-Kol-2012-(13-12-2012)FORM-1.pdf | 2012-12-13 |
| 5 | 1401-Kol-2012-(13-12-2012)DRAWINGS.pdf | 2012-12-13 |
| 6 | 1401-Kol-2012-(13-12-2012)DESCRIPTION (COMPLETE).pdf | 2012-12-13 |
| 7 | 1401-Kol-2012-(13-12-2012)CORRESPONDENCE.pdf | 2012-12-13 |
| 8 | 1401-Kol-2012-(13-12-2012)CLAIMS.pdf | 2012-12-13 |
| 9 | 1401-Kol-2012-(13-12-2012)ABSTRACT.pdf | 2012-12-13 |
| 10 | 1401-KOL-2012-(19-12-2012)-FORM-13.pdf | 2012-12-19 |
| 11 | 1401-KOL-2012-(19-12-2012)-FORM-1.pdf | 2012-12-19 |
| 12 | 1401-KOL-2012-(19-12-2012)-CORRESPONDENCE.pdf | 2012-12-19 |
| 13 | 1401-KOL-2012-FORM-18.pdf | 2014-05-20 |
| 14 | 1401-KOL-2012-(04-09-2014)-PA.pdf | 2014-09-04 |
| 15 | 1401-KOL-2012-(04-09-2014)-FORM-6.pdf | 2014-09-04 |
| 16 | 1401-KOL-2012-(04-09-2014)-FORM-5.pdf | 2014-09-04 |
| 17 | 1401-KOL-2012-(04-09-2014)-FORM-3.pdf | 2014-09-04 |
| 18 | 1401-KOL-2012-(04-09-2014)-FORM-2.pdf | 2014-09-04 |
| 19 | 1401-KOL-2012-(04-09-2014)-FORM-1.pdf | 2014-09-04 |
| 20 | 1401-KOL-2012-(04-09-2014)-DRAWINGS.pdf | 2014-09-04 |
| 21 | 1401-KOL-2012-(04-09-2014)-CORRESPONDENCE.pdf | 2014-09-04 |
| 22 | 1401-KOL-2012-(04-09-2014)-ASSIGNMENT.pdf | 2014-09-04 |
| 23 | 1401-KOL-2012-FER.pdf | 2017-10-27 |
| 24 | 1401-KOL-2012-FORM 4(ii) [24-04-2018(online)].pdf | 2018-04-24 |
| 25 | 1401-KOL-2012-RELEVANT DOCUMENTS [26-05-2018(online)].pdf | 2018-05-26 |
| 26 | 1401-KOL-2012-PETITION UNDER RULE 137 [26-05-2018(online)].pdf | 2018-05-26 |
| 27 | 1401-KOL-2012-OTHERS [26-05-2018(online)].pdf | 2018-05-26 |
| 28 | 1401-KOL-2012-FER_SER_REPLY [26-05-2018(online)].pdf | 2018-05-26 |
| 29 | 1401-KOL-2012-CORRESPONDENCE [26-05-2018(online)].pdf | 2018-05-26 |
| 30 | 1401-KOL-2012-COMPLETE SPECIFICATION [26-05-2018(online)].pdf | 2018-05-26 |
| 31 | 1401-KOL-2012-CLAIMS [26-05-2018(online)].pdf | 2018-05-26 |
| 32 | 1401-KOL-2012-Proof of Right (MANDATORY) [14-06-2018(online)].pdf | 2018-06-14 |
| 33 | 1401-KOL-2012-Proof of Right (MANDATORY) [22-06-2018(online)].pdf | 2018-06-22 |
| 34 | 1401-KOL-2012-HearingNoticeLetter.pdf | 2018-10-04 |
| 35 | 1401-KOL-2012-FORM-26 [23-10-2018(online)].pdf | 2018-10-23 |
| 36 | 1401-KOL-2012-PETITION UNDER RULE 137 [08-11-2018(online)].pdf | 2018-11-08 |
| 37 | 1401-KOL-2012-Written submissions and relevant documents (MANDATORY) [22-11-2018(online)].pdf | 2018-11-22 |
| 38 | 1401-KOL-2012-FORM 13 [22-11-2018(online)].pdf | 2018-11-22 |
| 39 | 1401-KOL-2012-PETITION UNDER RULE 137 [23-03-2019(online)].pdf | 2019-03-23 |
| 40 | 1401-KOL-2012-PatentCertificate28-03-2019.pdf | 2019-03-28 |
| 41 | 1401-KOL-2012-IntimationOfGrant28-03-2019.pdf | 2019-03-28 |
| 42 | 1401-KOL-2012-RELEVANT DOCUMENTS [26-03-2020(online)].pdf | 2020-03-26 |
| 43 | 1401-KOL-2012-RELEVANT DOCUMENTS [30-09-2022(online)].pdf | 2022-09-30 |
| 44 | 1401-KOL-2012-PROOF OF ALTERATION [06-03-2023(online)].pdf | 2023-03-06 |
| 45 | 1401-KOL-2012-Response to office action [18-06-2023(online)].pdf | 2023-06-18 |
| 46 | 1401-KOL-2012-29-09-2023-POWER OF ATTORNEY.pdf | 2023-09-29 |
| 47 | 1401-KOL-2012-29-09-2023-FORM-27.pdf | 2023-09-29 |
| 48 | 1401-KOL-2012-29-09-2023-CORRESPONDENCE.pdf | 2023-09-29 |
| 49 | 1401-KOL-2012-FORM-26 [19-03-2024(online)].pdf | 2024-03-19 |
Search Strategy
| 1 | searchstrategy1401kol2012_27-10-2017.pdf |