US2640001A - Method for bright metal plating - Google Patents

Method for bright metal plating Download PDF

Info

Publication number
US2640001A
US2640001A US3537A US353748A US2640001A US 2640001 A US2640001 A US 2640001A US 3537 A US3537 A US 3537A US 353748 A US353748 A US 353748A US 2640001 A US2640001 A US 2640001A
Authority
US
United States
Prior art keywords
metal
balls
coating
objects
plating
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
Application number
US3537A
Inventor
Erith T Clayton
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.)
Tainton Co
Original Assignee
Tainton Co
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 Tainton Co filed Critical Tainton Co
Priority to US3537A priority Critical patent/US2640001A/en
Application granted granted Critical
Publication of US2640001A publication Critical patent/US2640001A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • C23C24/045—Impact or kinetic deposition of particles by trembling using impacting inert media

Definitions

  • the invention relates to improvements in methods for bright metal plating ofvarious articles without the use of electric current or molten metal.
  • the bright metal plating of objects consists essentially of tumbling the objectsin a mill with finely divided metal and an oily liquid or other lubricating material, with or without balls, for
  • coating does not continue to increase in thickness as it does with other metals of which zinc is the best example.
  • zinc is the most satisfactory for building up thick coatings; coating. media, which consists of any volatile liquid, such as xylol, naphtha, mineral spirits or a hydrocarbon, and which contains a percentage of vegetable seed or marine oil or a fatty acid derived from an organic oil, such as clupanodonic or oleic acid or linoleic acid or other high molecular weight long carbon chain fatty acid, preferably with one or more double bonds.
  • the mill is then closed and rotated.
  • a bright metallic zinc coating which may be made mirror bright and which under the microscope shows a solid layer of metallic zinc is built up. Under these conditions the steel balls become heavily coated with zinc and the inside of the mill itself becomes completely lined with zinc. It is not necessary to apply any heat.
  • the action is one
  • the mill is charged with small steel' baths approximately inch to 1 inch in diameter.” Finely powdered zinc dust is added to the grind- 2 of impacting or hammering the zinc into a solid metallic coating on the steel objects.
  • the zinc coating of the balls does not have any effect on the coating of the objects other than of preventing contamination of the metal powder with iron. Were it not for this zinc coating ofv the balls which takes place automatically, the continued re-use of the zinc for coating purposes would lead to its heavy conr tamination with iron.
  • the volume of liquid to metal powder is extremely important. A large range is permissible and different effects result where the quantity of liquid used is small and where the liquid to metal ratio is large. If too little liquid is used, the mixture is pasty.
  • the metal coat smoother and brighter.
  • the weight of balls to metal increases, so does the finish'of the plating, but the weight of the coating deposited on the objects decreases. Satisfactory plating occurs if the ratio of balls to metal does not exceed 8 to 1, but plating will occur even when the ratio of balls to metal is 15 to 1.
  • the range of balls to metal may be to to 1.
  • the small objects being plated serve the same purpose as balls. In other words, when plating a charge of small wood screws, for example, these screws are adapted to take the place'of balls. This would simplify the process in that it would not be necessary to separate the screws or other small objects from any steel balls and the screw or other small objects would be very nearly as effective.
  • the ratio 01- the zinc coating powder to the metal of the objects being plated must be increased in ordernot to wear the sharp edges of the screw threads or sharp edges of other objects.
  • the amount of metallic powder supplied to the ball tumbling mill is always in excess of that necessary to coat the objects being plated and a continued operation of the mill after the plating of the objects will convert the excess metallic powder into metal flakes having smooth, bright surfaces.
  • the flakes which are simultaneously produced with the plating of the objects maybe removed and used as a pigment
  • small balls is especially advantageous in the plating of irregular shaped objects having exterior and interior surfaces inaccessible with large balls or tlie'size customarily employed in ball mills.
  • shot or small-balls a good coating. of such irregular shaped objects, both'exteriorly and interiorl-y thereof, is effected.
  • a very satisfactory temperature range in which to operatet'he' plating mill is from 90 F. to 100 F: This refers to the ambient temperature around the mill. With decreasing temperatures it has been found that the character ofthe deposited plate or coating tends to change. When the temperature falls, the plating or coating is lesshomogeneous'and may lose its character or a, solid, metal continuous deposit and become more an aggreate of particles cementedto the object being plated. Also -as the temperature mus, plating is slower. The use of'higher temperatures tends to promote the generation offpressures within the ball-mill-which may be fitted with a one-way pres; s'iire relief valve. The ball millmay be operated,
  • the small steel shot or balls serve to hammer the metal on the objects being plated.
  • The. ished object looks as if ithadbeen electrolytically' mpmaeamstnsn buffed orpolished.
  • the coat-I ing iscompletely adherent and will notrub or washoff or break or fracture under various strains and flexures.
  • bal s be sp c ally case hardened nor is it necessary that they receive a special bright or polished surface because a bright and polished surface is achieved by the processing of the metallic powder.
  • This invention sets up conditions which coat the small steel balls with the metal being processed so that in efiect the grinding or polishing is accomplished without the grinding medium coming in contact with the processed material at all.
  • the use, 0! ordinary steel shot such as is used in shot blasting operations is very much cheaper than anycomparable material of the same size and permits, processing of extremely fine dust which couldnot be accomplished if ball diameters such as are cubtomarily used in ball mills are employed. No iron contamination will be found in the product,
  • a method or mechanically plating metal a:- ticles comprising intermixing metallic powder, particles with an organic liquid containing dis! solvedtherein a percentage 01'- lubricating; ma-- terial selectedf-rom the group consisting of vegetable seed oils, marine oils; and fatty acids derived from organic oils,the metallic powderbe--- ing in proportion between one-fourth and seven. i es. e iq id y w i ht. an umblin said. mixture of said articles andpowder particles and, liquid at a temperature between 5Q and 150 to impact the particles onto the surjace 01' said articles into a solid; metallic coating thereon.

Description

Patented May 26, 1953 f n v 2,640,001 UNITED STATES PATENT OFFICE 2,640,00 METHOD FOR BRIGHT 'METAL PLATING Erith '1. Clayton, Baltimore, Md., assignor, by mesne assignments, to The Tainton Company, Baltimore, Md., a corporation of Maryland No Drawing. Application January 21,1948,
Serial No. 3,537 3 Claims. (Cl. 117-109) f The invention relates to improvements in methods for bright metal plating ofvarious articles without the use of electric current or molten metal.
- The bright metal plating of objects consists essentially of tumbling the objectsin a mill with finely divided metal and an oily liquid or other lubricating material, with or without balls, for
impacting the finely divided coating metal on the object and converting the impacted coating metal into a continuous coating or covering on the ob- Je 1 It has been found that small objects, such as bolts, nuts, screws and the like, may be satisfactorily plated witha continuous coating or covering of zinc, or other metal, without the use of balls, the small objects operating to impact the finely divided metal on the objects and produce a continuous coating or plating of such objects. I, The suitability of this plating method is not the same for all metals but varies considerably.
In some cases, such as, for example, brass powder plates on steel objects verysatisfactorily, and the brass does not plate so well on itself, and the coating does not continue to increase in thickness as it does with other metals of which zinc is the best example. of all the metals on which the present method has been tried, zinc is the most satisfactory for building up thick coatings; coating. media, which consists of any volatile liquid, such as xylol, naphtha, mineral spirits or a hydrocarbon, and which contains a percentage of vegetable seed or marine oil or a fatty acid derived from an organic oil, such as clupanodonic or oleic acid or linoleic acid or other high molecular weight long carbon chain fatty acid, preferably with one or more double bonds.
The mill is then closed and rotated. A bright metallic zinc coating, which may be made mirror bright and which under the microscope shows a solid layer of metallic zinc is built up. Under these conditions the steel balls become heavily coated with zinc and the inside of the mill itself becomes completely lined with zinc. It is not necessary to apply any heat. The action is one The mill is charged with small steel' baths approximately inch to 1 inch in diameter." Finely powdered zinc dust is added to the grind- 2 of impacting or hammering the zinc into a solid metallic coating on the steel objects.
It has been found that large steel balls, say 1 inch in diameter, are satisfactory, but the desired result seems to be best accomplished by a great multiplicity of impacts from a tremendous number of small diameter balls.
Apparently the zinc coating of the balls does not have any effect on the coating of the objects other than of preventing contamination of the metal powder with iron. Were it not for this zinc coating ofv the balls which takes place automatically, the continued re-use of the zinc for coating purposes would lead to its heavy conr tamination with iron.
It has been found that when the vegetable oil or its equivalent is omitted from the charge, the method does not result in a continuous coating of the objects, nor is the metal deposited on the objects bright. It has been found that a major improvement over the plain use of oil is achieved by substituting for the oil a fatty acid derived from an organic oil. In particular ithas been found that double distilled white linseed acids greatly enhance the plating action of the mill, and also increase the brightness of the deposited coating. It is rather remarkable that an oil or fatty acid which is an extremely slippery lubricating material should be effective in applying a metallic coating to a metal object, On the face of it, it would appear that if it were desired to apply a metal coating by hammering or rolling withsmall balls, the last thing for use to accomplish this end would be a lubricating oil.
For successful metal plating in the tumbling mill, it has been found that the volume of liquid to metal powder is extremely important. A large range is permissible and different effects result where the quantity of liquid used is small and where the liquid to metal ratio is large. If too little liquid is used, the mixture is pasty. The
material may then pack loosely around the article being plated and it is then shielded from further action; on the other hand, if a large excess of liquid is used, the coating time is increased and the metal deposited on the articles tends to be more brittle and tochip more easily. Expressed as parts by weight, a very satisfactory mixture is 5 parts of powdered metal to 4 parts of liquid, the liquid being a mixture of fatty acid dissolved in some suitable carrier, such as naphtha, mineral spirits etc. The range which has been found advantageous is 7 parts powderedmetal to 1 part liquid and 1 part powdered metal to 4 parts liquid. The proportion of 7 parts powdered metal to 1 part liquid gives a rather, pasty mixture and the proportion of 1 part pow- V dered metal to 4 parts liquid makes a very liquid medium.
It has been found that the most rapid plating occurs when the-ball to metal ratio is 2 to 1. How- Y?- l 1 %i ph im a th ecw m ke...
ing the metal coat smoother and brighter. As the weight of balls to metal increases, so does the finish'of the plating, but the weight of the coating deposited on the objects decreases. Satisfactory plating occurs if the ratio of balls to metal does not exceed 8 to 1, but plating will occur even when the ratio of balls to metal is 15 to 1. Actually the range of balls to metal may be to to 1. Where no balls are used, the small objects being plated serve the same purpose as balls. In other words, when plating a charge of small wood screws, for example, these screws are adapted to take the place'of balls. This would simplify the process in that it would not be necessary to separate the screws or other small objects from any steel balls and the screw or other small objects would be very nearly as effective. When working on wood screw having screw threads with sharp edges or other objects having sharp edges, the ratio 01- the zinc coating powder to the metal of the objects being plated must be increased in ordernot to wear the sharp edges of the screw threads or sharp edges of other objects. The amount of metallic powder supplied to the ball tumbling mill is always in excess of that necessary to coat the objects being plated and a continued operation of the mill after the plating of the objects will convert the excess metallic powder into metal flakes having smooth, bright surfaces. The flakes which are simultaneously produced with the plating of the objects maybe removed and used as a pigment,
The use of small balls is especially advantageous in the plating of irregular shaped objects having exterior and interior surfaces inaccessible with large balls or tlie'size customarily employed in ball mills. By using shot or small-balls a good coating. of such irregular shaped objects, both'exteriorly and interiorl-y thereof, is effected.
A very satisfactory temperature range in which to operatet'he' plating mill is from 90 F. to 100 F: This refers to the ambient temperature around the mill. With decreasing temperatures it has been found that the character ofthe deposited plate or coating tends to change. When the temperature falls, the plating or coating is lesshomogeneous'and may lose its character or a, solid, metal continuous deposit and become more an aggreate of particles cementedto the object being plated. Also -as the temperature mus, plating is slower. The use of'higher temperatures tends to promote the generation offpressures within the ball-mill-which may be fitted with a one-way pres; s'iire relief valve. The ball millmay be operated,
within a temperature range from 50? E.
"It has also been found more satisfactory'te ex; clude air from the interior of the mill; and operate with the mill sealed. The exclusion ot airis not necessaryfor plating, but isfhig hly desirablejand perm-its bright metal plating.
The small steel shot or balls serve to hammer the metal on the objects being plated. The. ished object looks as if ithadbeen electrolytically' mpmaeamstnsn buffed orpolished. The coat-I ing iscompletely adherent and will notrub or washoff or break or fracture under various strains and flexures.
' The coating 'ofthe steel balls, besides prevent; ingc'on-tamination of the metallic powder through commutes use,eliminates wear of the ballsand,
th'e nece'ssity-"of replacing the same. The coating,
of the balls is self-renewing and it removed or' broken, 'it reforms. The surface of the steel ll y e. ti ted.- im n an. acid, Ri kie. and wash, the same as the objects to be plated.
t is no neces that the bal s be sp c ally case hardened nor is it necessary that they receive a special bright or polished surface because a bright and polished surface is achieved by the processing of the metallic powder.
In the processing of these finely divided dusts, the use of very small balls is desirable because large balls lead to excessive grinding of the powder and do not provide sufiicient surface unless present in excessive quantities. With large balls the steel grinding load usually exceeds that 01' the metal being processed, sometimes as much as 10 or 20 times. The use of such an excess of balls results in a heavy erosion of the grinding media with the resulting contamination oi. the product. The use of small balls or steel shot is normally not considered possible because the wear and tear on this type of grinding media would be excessive. Moreover, the high technical costof the development of suitable surface characteristics, such as hardness, smoothness and luster on small balls would be excessive. This invention sets up conditions which coat the small steel balls with the metal being processed so that in efiect the grinding or polishing is accomplished without the grinding medium coming in contact with the processed material at all. The use, 0! ordinary steel shot such as is used in shot blasting operations is very much cheaper than anycomparable material of the same size and permits, processing of extremely fine dust which couldnot be accomplished if ball diameters such as are cubtomarily used in ball mills are employed. No iron contamination will be found in the product,
What is claimed is:
1. A method or mechanically plating metal a:- ticles comprising intermixing metallic powder, particles with an organic liquid containing dis! solvedtherein a percentage 01'- lubricating; ma-- terial selectedf-rom the group consisting of vegetable seed oils, marine oils; and fatty acids derived from organic oils,the metallic powderbe-- ing in proportion between one-fourth and seven. i es. e iq id y w i ht. an umblin said. mixture of said articles andpowder particles and, liquid at a temperature between 5Q and 150 to impact the particles onto the surjace 01' said articles into a solid; metallic coating thereon.
A met od. m hanica y P a ng e ls:- ti c les as set forth inclaim 1 in which acharg enol eces Q m c ing. ate ial is added to. he. ix.- re in a pro or ion noti xceeding eishtto, one.
arts by ei ht; th. relat 'qn he e sh of files a et o t n. laim. 1 nwhich a ms. liiisd r m the mixtur .d ringthe. tumblinzp ra ion,
References Cited in the file of patent UNI D. TIQ E BA EN IS Number Name Date;-
7-452255- Morton,. Nov. 24*; 19": 933,324 Mowry- 7, 19.9
1,193,695 Watkins, Septi. 12, 1916 .075. G ttlem n: V, Ma 30,
2.9 3 "Eam M m. 1.9.3.7?
3 ,,53 $61 ,94 filit q-alune i I F RE GN.
umbe manate-1 534,888 Great Britain Mar. 21, 1941

Claims (1)

1. A METHOD OF MECHANICALLY PLATING METAL ARTICLES COMPRISING INTERMIXING METALLIC POWDER PARTICLES WITH AN ORGANIC LIQUID CONTAINING DISSOLVED THEREIN A PERCENTAGE OF LUBRICATING MATERIAL SELECTED FROM THE GROUP CONSISTING OF VEGETABLE SEED OILS, MARINE OILS, AND FATTY ACIDS DERIVED FROM ORGANIC OILS, THE METALLIC POWDER BEING IN PROPORTION BETWEEN ONE-FOURTH AND SEVEN TIMES THE LIQUID BY WEIGHT, AND TUMBLING SAID MIXTURE OF SAID ARTICLES AND POWDER PARTICLES AND LIQUID AT A TEMPERATURE BETWEEN 50* AND 150* F. TO IMPACT THE PARTICLES ONTO THE SURFACE OF SAID ARTICLES INTO A SOLID METALLIC COATING THEREON.
US3537A 1948-01-21 1948-01-21 Method for bright metal plating Expired - Lifetime US2640001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3537A US2640001A (en) 1948-01-21 1948-01-21 Method for bright metal plating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3537A US2640001A (en) 1948-01-21 1948-01-21 Method for bright metal plating

Publications (1)

Publication Number Publication Date
US2640001A true US2640001A (en) 1953-05-26

Family

ID=21706334

Family Applications (1)

Application Number Title Priority Date Filing Date
US3537A Expired - Lifetime US2640001A (en) 1948-01-21 1948-01-21 Method for bright metal plating

Country Status (1)

Country Link
US (1) US2640001A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829430A (en) * 1953-02-20 1958-04-08 Midland Chemical Corp Cutting compounds
US3131090A (en) * 1958-06-11 1964-04-28 Northwestern Steel & Wire Comp Tumbling drum for coating nails having a weighing feeder
US3132043A (en) * 1963-03-25 1964-05-05 Peen Plate Inc Metal plating
US3268356A (en) * 1959-01-28 1966-08-23 Minnesota Mining & Mfg Metal plating by successive addition of plating ingredients
US4062990A (en) * 1976-06-10 1977-12-13 Waldes Kohinoor, Inc. Non-polluting system for metal surface treatments
US4800132A (en) * 1986-10-22 1989-01-24 Macdermid, Incorporated Mechanical plating with oxidation-prone metals
US4832985A (en) * 1987-10-20 1989-05-23 Clayton Colleagues, Inc. New composition and process for mechanical plating and the resulting article
US4849258A (en) * 1987-05-12 1989-07-18 Clayton And Colleagues, Inc. Mechanical barrel plating-process and article
US5273782A (en) * 1991-08-09 1993-12-28 Intermetallics Co., Ltd. Coated parts with film having powder-skeleton structure, and method for forming coating
US5762942A (en) * 1996-04-08 1998-06-09 Rochester; Thomas H. Process of mechanical plating
EP1049112A2 (en) * 1999-04-26 2000-11-02 Sumitomo Special Metals Company Limited Process for sealing pores in molded product, and bonded magnet with pores sealed by the process
US20040043143A1 (en) * 2002-08-30 2004-03-04 Rochester Thomas H. Mechanical deposition process
US20040123877A1 (en) * 2002-12-30 2004-07-01 Brown Dale G. Coated multifilament dental devices overcoated with imbedded particulate
US20090188520A1 (en) * 2008-01-30 2009-07-30 Whitehill Oral Technologies, Inc. Coated dental devices with ablative abrasives
US20100221574A1 (en) * 2009-02-27 2010-09-02 Rochester Thomas H Zinc alloy mechanically deposited coatings and methods of making the same
CN105088291A (en) * 2015-09-10 2015-11-25 昆明理工大学 Promoter for mechanical plating of copper and copper alloy and use method of promoter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745224A (en) * 1902-11-15 1903-11-24 Ephraim S Morton Method of producing roughened wire nails.
US933324A (en) * 1907-02-02 1909-09-07 Wilcox Critenden And Company Inc Process of metal-coating small metal articles.
US1197695A (en) * 1915-08-17 1916-09-12 William E Watkins Plating metals.
US1806128A (en) * 1930-04-25 1931-05-19 Wilson Welder & Metals Company Process of coating arc welding electrodes
US2075518A (en) * 1934-10-04 1937-03-30 Gettelman Fredrick Art of surfacing one metal with another
US2080346A (en) * 1932-06-11 1937-05-11 Tainton Res Corp Metallic paint
GB534888A (en) * 1939-06-20 1941-03-21 Nat Smelting Co Ltd Process for applying thin metallic coatings
US2378588A (en) * 1942-03-14 1945-06-19 Machlett Lab Inc Method of making bearings

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745224A (en) * 1902-11-15 1903-11-24 Ephraim S Morton Method of producing roughened wire nails.
US933324A (en) * 1907-02-02 1909-09-07 Wilcox Critenden And Company Inc Process of metal-coating small metal articles.
US1197695A (en) * 1915-08-17 1916-09-12 William E Watkins Plating metals.
US1806128A (en) * 1930-04-25 1931-05-19 Wilson Welder & Metals Company Process of coating arc welding electrodes
US2080346A (en) * 1932-06-11 1937-05-11 Tainton Res Corp Metallic paint
US2075518A (en) * 1934-10-04 1937-03-30 Gettelman Fredrick Art of surfacing one metal with another
GB534888A (en) * 1939-06-20 1941-03-21 Nat Smelting Co Ltd Process for applying thin metallic coatings
US2378588A (en) * 1942-03-14 1945-06-19 Machlett Lab Inc Method of making bearings

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829430A (en) * 1953-02-20 1958-04-08 Midland Chemical Corp Cutting compounds
US3131090A (en) * 1958-06-11 1964-04-28 Northwestern Steel & Wire Comp Tumbling drum for coating nails having a weighing feeder
US3268356A (en) * 1959-01-28 1966-08-23 Minnesota Mining & Mfg Metal plating by successive addition of plating ingredients
US3132043A (en) * 1963-03-25 1964-05-05 Peen Plate Inc Metal plating
US4062990A (en) * 1976-06-10 1977-12-13 Waldes Kohinoor, Inc. Non-polluting system for metal surface treatments
US4800132A (en) * 1986-10-22 1989-01-24 Macdermid, Incorporated Mechanical plating with oxidation-prone metals
US4849258A (en) * 1987-05-12 1989-07-18 Clayton And Colleagues, Inc. Mechanical barrel plating-process and article
US4832985A (en) * 1987-10-20 1989-05-23 Clayton Colleagues, Inc. New composition and process for mechanical plating and the resulting article
US5273782A (en) * 1991-08-09 1993-12-28 Intermetallics Co., Ltd. Coated parts with film having powder-skeleton structure, and method for forming coating
US5762942A (en) * 1996-04-08 1998-06-09 Rochester; Thomas H. Process of mechanical plating
EP1049112A2 (en) * 1999-04-26 2000-11-02 Sumitomo Special Metals Company Limited Process for sealing pores in molded product, and bonded magnet with pores sealed by the process
EP1049112A3 (en) * 1999-04-26 2001-04-11 Sumitomo Special Metals Company Limited Process for sealing pores in molded product, and bonded magnet with pores sealed by the process
US6423369B1 (en) 1999-04-26 2002-07-23 Sumitomo Special Metals Co., Ltd. Process for sealing pores in molded product, and bonded magnet with pores sealed by the process
US20040043143A1 (en) * 2002-08-30 2004-03-04 Rochester Thomas H. Mechanical deposition process
US20040123877A1 (en) * 2002-12-30 2004-07-01 Brown Dale G. Coated multifilament dental devices overcoated with imbedded particulate
US7152611B2 (en) 2002-12-30 2006-12-26 International Tape Partners, Llc Coated multifilament dental devices overcoated with imbedded particulate
US20090188520A1 (en) * 2008-01-30 2009-07-30 Whitehill Oral Technologies, Inc. Coated dental devices with ablative abrasives
US20100221574A1 (en) * 2009-02-27 2010-09-02 Rochester Thomas H Zinc alloy mechanically deposited coatings and methods of making the same
CN105088291A (en) * 2015-09-10 2015-11-25 昆明理工大学 Promoter for mechanical plating of copper and copper alloy and use method of promoter

Similar Documents

Publication Publication Date Title
US2640001A (en) Method for bright metal plating
US4714622A (en) Blast material for mechanical plating and continuous mechanical plating using the same
US3765923A (en) Process and composition for blast-cleaning and corrosion-protecting metal surfaces
US4039697A (en) Process for forming a film composed of plastic-coated inorganic powder particles
US2689808A (en) Metal plating
US3574658A (en) Dry-lubricated surface and method of producing such surfaces
EP0340257B1 (en) Mechanically plated coatings containing lubricant particles
JPH0254422B2 (en)
USRE23861E (en) Cladding metal
US1823869A (en) Coating of bodies with metal
CN1242804A (en) Suface-treating agent of steel material and surface-treated steel material
US3479209A (en) Mechanical plating
US3251711A (en) Methods of mechanically plating metal objects with copper and alloys thereof
US3287157A (en) Method of plating metal article with metal
US10316195B2 (en) Zinc-based composite material and use thereof
Lymar et al. Prospects for the Application of Restoring Electric Arc Coatings in the Repair of Machines and Mechanisms
US3443985A (en) Metal plating by a wet mechanical process
JP6635571B2 (en) Lubricating agent for wire drawing and method for wire drawing of base material using the same
CN109338266A (en) A kind of wear resistant self-lubricating coating and preparation method
US2365356A (en) Nickel electroflake pigment
US3485654A (en) Method of preparing metal coated metallic substrates
JPS5925032B2 (en) Method of forming a corrosion-resistant film on metal surfaces
US3268356A (en) Metal plating by successive addition of plating ingredients
CN101407741B (en) Superfine ore powder lubricant additive having self-repair function
Girisha et al. Experimental investigation on erosive wear behaviour of plasma spray coated stainless steel