US1221397A - Method of metal-plating. - Google Patents
Method of metal-plating. Download PDFInfo
- Publication number
- US1221397A US1221397A US15115117A US15115117A US1221397A US 1221397 A US1221397 A US 1221397A US 15115117 A US15115117 A US 15115117A US 15115117 A US15115117 A US 15115117A US 1221397 A US1221397 A US 1221397A
- Authority
- US
- United States
- Prior art keywords
- articles
- metal
- zinc
- receptacle
- 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
Links
- 238000000034 method Methods 0.000 title description 11
- 238000007747 plating Methods 0.000 title description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 16
- 229910052725 zinc Inorganic materials 0.000 description 16
- 239000011701 zinc Substances 0.000 description 16
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
Definitions
- the object of my invention is to provide an improved method of platin metal such as iron with non-corrosive meta such as zinc in a smooth and uniform manner so that articles such as bolts and nuts may be thus plated and the plating material thus applied will not interfere with the accurate fitting of the nuts on the bolts.
- My invention consists in the arrangement and combination of the various steps of the process by which the objects contemplated are attained.
- Figure 1 shows a top or plan view of a furnace for melting zinc and a receptacle therein to contain articles to be'plated.
- Fig. 2 shows a side elevation of the furnace.
- Fig. 3 shows a top or plan view of vice for applying centrifugal action to the recgptacle containing articles to be coated
- Fig. 4 shows a central sectional view of same.
- the reference numeral 10 indicates the walls of a furnace, and arranged within the walls is a tank 11 in which thezinc to be melted is placed.
- the receptacle for containing the articles to be coated is indicated by the numeral 12 and is provided with perforated sides. It also has at its top two handles 13.
- a rod 14 is provided to rest on top of the furnace walls and to extend through the handles 13 to support the vessel 12 in the melted zinc.
- the device for applying a centrifugal action to the vessel for containing articles to be plated comprises a base 15 having a stationary shield 16 thereon open at its top and bottom and widest at its bottom.
- a rotatable support 17 Arranged within this shield is a rotatable support 17 having a frame 18 mounted thereon and desi ned to receive and su port the vessel 12. eneath the support 1 is a number of gas jets 19 for heat- 111g the suppo t.
- the vessel containing the articles to be coated be transferred quickly from the furnace in which they are treated to the zinc bath to the machine in which the centrifugal action is applied.
- the coating will become hardened either wholly or in part and thus prevent the superfluous coating material from being. discharged.
- the rotatable plate on which the vessel containing the articles to be coated is placed be heated in such a manner as to prevent qhilling during the time the centrifugal action is being applied.
- I claim 1 The method of treating metal articles, which consists in placing the articles loosely in a perforatedreceptacle, then immersing the receptacle contaming the articles 111 a bath of molten zinc by supporting said receptacle in a furnace containing said molten zinc and permitting the articles to remain in the molten zinc until the zinc alloys with the surface metal of the articles, then bodily removing the receptacle containing the articles and instantly subjecting it to centrifugal action, meanwhile maintaining the zinc in a molten state by applying heat thereto, whereceptacle and articles upon a rotatable support, while simultaneously heating the articles uniformly throughout and subjecting the receptacle and its contents to a centrifugal action whereby all excess zinc will be thrown off and a smooth uniform covering produced'on the articles.
- the method of galvanizing small articles which consists in. placing the articles loosely in a perforat eceptacle, then immersing said receptacle in a .bath of molten zinc until the zinc alloys with the surface in a perforated receptacle, in immersing said receptacle together with the articles in molten zinc until a thorough surface alloy between the articles and the zinc takes place, in then removing and subjecting the articles and receptacle together to centrifugal action, whereby from the beginning to the end of the process of galvanizing, the articles are maintained in the'same receptacle and therefore can never come in contact with a surface cooler than themselves.
- the method of treating metal articles which consists in placing the articles loosely in a perforated receptacle, then immersing said receptacle in a bath of molten metal until said metal alloys with the surface metal of the articles, then bodily removing the receptacle containing the articles and immedi ately subject-ing it to rapid centrifugal action without removing the articles therefrom until the excess coating metal is thrown of and a smooth uniform coating is effected.
Description
E. L. WATROUS.
METHOD OF METAL PLATING.
APPLICATION FILED MAY 3. 1909. RENEWED FEB. 26. 1911.
Patented Apr. 3, 1917.
EDWARD I WATROUS, OF IDES MOIN-ES, IOWA, ASSIGNOE T0 15. L. WATBOUS eaavaiamme 00in any, 'a eoaronarron or sourn n nn'rnon or Ear-marine.
UTA.
"To all whom it may some" Be it known that I, EDARD L. WATROUS, a citizen of the United States, residin at Des Moines, in the county of Polk and tate of Iowa, have invented certain new and useful Improvements in Methods of Metal- Plating, of which the following is a specification.
The object of my invention is to provide an improved method of platin metal such as iron with non-corrosive meta such as zinc in a smooth and uniform manner so that articles such as bolts and nuts may be thus plated and the plating material thus applied will not interfere with the accurate fitting of the nuts on the bolts.
My invention consists in the arrangement and combination of the various steps of the process by which the objects contemplated are attained.
In the accompanying drawings, 1 have illustrated one form of apparatus by which the method may be carried out.
Figure 1 shows a top or plan view of a furnace for melting zinc and a receptacle therein to contain articles to be'plated.
Fig. 2 shows a side elevation of the furnace.
Fig. 3 shows a top or plan view of vice for applying centrifugal action to the recgptacle containing articles to be coated, an
Fig. 4 shows a central sectional view of same.
The reference numeral 10 indicates the walls of a furnace, and arranged within the walls is a tank 11 in which thezinc to be melted is placed. The receptacle for containing the articles to be coated is indicated by the numeral 12 and is provided with perforated sides. It also has at its top two handles 13. A rod 14 is provided to rest on top of the furnace walls and to extend through the handles 13 to support the vessel 12 in the melted zinc. The device for applying a centrifugal action to the vessel for containing articles to be plated comprises a base 15 having a stationary shield 16 thereon open at its top and bottom and widest at its bottom. Arranged within this shield is a rotatable support 17 having a frame 18 mounted thereon and desi ned to receive and su port the vessel 12. eneath the support 1 is a number of gas jets 19 for heat- 111g the suppo t.
Specification of Letters Patent.
a de- Patented Ar; 3, 191?.
. aenewearebmary 2c, 1917; Serial No. man.
In carrying out my improved method, I first place in the race tacle of thefurnace a quantity of zinc .or other platin material and by applying the heat of the urnace reduce same to a melted condition. I, then place the articles to be coated such, for instance, as bolts, nuts, and screws in the vessel 12. This vessel is then supported in the furnace with the articles to be coated immersed in the melted zinc. 'The articles are allowed to remain in the melted zinc' and the zinc is heated to such a temperature that the pores of the metal to be plated will open up and the plating metal will enter the pores to such an extent that the coating material will become homogeneous with the surface metal of the article to be coated. I then bodily remove the vessel containing the articles to be coated and instantly place same upon the rotatable support 17 which has been previously heated by means of the gas jets and which is maintained at a high temperature by the gas jets. I then cause the support 17,
- to be rapidly rotated with the result that the centrifugal actionwill cause all of the'superfluous plating material on the articles-to be coated to be discharged outwardly through.
' not chip or break off and which will be ,so
uniform in thickness that articles such as nuts and bolts may be thus treated and afterward screwed together without aflecting the accurate fitting of the threads.
In carrying out the process it is desirable that the vessel containing the articles to be coated be transferred quickly from the furnace in which they are treated to the zinc bath to the machine in which the centrifugal action is applied. For, if the articles to be treated become chilled during the transfer or during the time they are being placed in the centrifugal machine, the coating will become hardened either wholly or in part and thus prevent the superfluous coating material from being. discharged. It is also desirable that the rotatable plate on which the vessel containing the articles to be coated is placed be heated in such a manner as to prevent qhilling during the time the centrifugal action is being applied.
I claim 1. The method of treating metal articles, which consists in placing the articles loosely in a perforatedreceptacle, then immersing the receptacle contaming the articles 111 a bath of molten zinc by supporting said receptacle in a furnace containing said molten zinc and permitting the articles to remain in the molten zinc until the zinc alloys with the surface metal of the articles, then bodily removing the receptacle containing the articles and instantly subjecting it to centrifugal action, meanwhile maintaining the zinc in a molten state by applying heat thereto, whereceptacle and articles upon a rotatable support, while simultaneously heating the articles uniformly throughout and subjecting the receptacle and its contents to a centrifugal action whereby all excess zinc will be thrown off and a smooth uniform covering produced'on the articles.
3. The method of galvanizing small articles which consists in. placing the articles loosely in a perforat eceptacle, then immersing said receptacle in a .bath of molten zinc until the zinc alloys with the surface in a perforated receptacle, in immersing said receptacle together with the articles in molten zinc until a thorough surface alloy between the articles and the zinc takes place, in then removing and subjecting the articles and receptacle together to centrifugal action, whereby from the beginning to the end of the process of galvanizing, the articles are maintained in the'same receptacle and therefore can never come in contact with a surface cooler than themselves.
5. The method of treating metal articles which consists in placing the articles loosely in a perforated receptacle, then immersing said receptacle in a bath of molten metal until said metal alloys with the surface metal of the articles, then bodily removing the receptacle containing the articles and immedi ately subject-ing it to rapid centrifugal action without removing the articles therefrom until the excess coating metal is thrown of and a smooth uniform coating is effected.
Des Moines, Iowa, April 9, 1909.
EDWARD L. WATROUS.
Witnesses MILDRED B. LDIZEN, NELLIE M. AYLOR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15115117A US1221397A (en) | 1917-02-26 | 1917-02-26 | Method of metal-plating. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15115117A US1221397A (en) | 1917-02-26 | 1917-02-26 | Method of metal-plating. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1221397A true US1221397A (en) | 1917-04-03 |
Family
ID=3289262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15115117A Expired - Lifetime US1221397A (en) | 1917-02-26 | 1917-02-26 | Method of metal-plating. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1221397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5173334A (en) * | 1991-06-12 | 1992-12-22 | Pierre Lavaux | Apparatus and method for improved hot dip metallic coating of metal objects |
-
1917
- 1917-02-26 US US15115117A patent/US1221397A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5173334A (en) * | 1991-06-12 | 1992-12-22 | Pierre Lavaux | Apparatus and method for improved hot dip metallic coating of metal objects |
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