US1517324A - Bath for galvanizing - Google Patents
Bath for galvanizing Download PDFInfo
- Publication number
- US1517324A US1517324A US680559A US68055923A US1517324A US 1517324 A US1517324 A US 1517324A US 680559 A US680559 A US 680559A US 68055923 A US68055923 A US 68055923A US 1517324 A US1517324 A US 1517324A
- Authority
- US
- United States
- Prior art keywords
- bath
- baths
- galvanizing
- tubes
- heat
- 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
- 238000005246 galvanizing Methods 0.000 title description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000635 Spelter Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 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
- C23C2/325—Processes or devices for cleaning the bath
-
- 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
- C23C2/003—Apparatus
- C23C2/0036—Crucibles
Definitions
- This invention relates to baths for galvanizing metal articles such as wire, wire netting, sheets, tubes and other products by immersion in molten zinc in which the zinc or spelter floats upon a layer of heavier metal such as leadto which the heat is applied.
- the galvanizing bath is constructed of steel with a series of tubes, itted with gas or oil burners, welded therein near the bottom and submerged in the molten lead.
- Fig. 1 is a longltudinal sectionthrough galvanizin bath.
- Fig. 2 1s a transverse section of same.
- Fig. 3 is a longitudinal section through modified form of bath.
- the galvanizing bath A is made of steel of ordinary form and at or near the bottom is fitted with heating tubes B either longitudinally or transversely of the bath which are welded into the sides of the bath.
- heating tubes B either longitudinally or transversely of the bath which are welded into the sides of the bath.
- At the end of each 'tube a gas or oil burner C is fitted, eachf burner being separately controlled by al valve D supplied with :fuel
- the tubes B are submerged in molten lead F to a depth of two or three inches. Above thelsurtace of this' molten lead collects the dross G that accumulates trom the articles being alvanized whilst above thisv agaln 1s the mo t'en zinc or spelter H.
- the bathAl is formed with an inner lining A of refractory material closely secured-.to thesides and ends of the bath'but not to the bottom so that the bath may expand equally with the tubes, and which is preferably a non-conductor of heat and on which molten zinc has little or no action,
- the o utside of the bath A is preferably lagged wlth a heat insulating material A2 such as slag Wool before being built up with bricks'As.
- the baths are made more comfortable for the operatives to work near particularly during hot weather and no obnoxious fumes escape into the work shop as occurs with coke'red baths and also the baths are more accessible to the operatives than are any externally tired baths.
- the tubes. B are fitted with .burners and fired from both ends, the flue or duct B? being'arranged to take away the products of combustrol and as the baths rest on a solid base having no iiues underneath or on their sides they can be insulated on the outside with a' vnon-conducting material which, together with the internal lining A -of a material unacted on by molten zinc and a ⁇ non-conductor of heat, ensuresa minimum loss of heat by radiation.
- rlhe heatingtubes can be so arranged in relation to the work being galvanized and the heat in them so controlled as to ensure if so desired; a practically uniform temperature throughout the bath. ln the old type of baths heated from the sides and doing continuous work such as wires the zinc at ⁇ the sides was always slightly hotter than at most cases be considerably increased in some processes very materially (b) the baths last indefinitely (c) the work at the baths is easier, cleaner and cooler (d) the product is more uniform (le) thefuel costs including handling of fue and ashes are-low (f) the bath ,can be made lighter than in present practice (g) there are no reasonable limits to the dimensions of a bath either in width or length as heat can be applied to ensure a uniform temperature at every part of it.
Description
Dec. 29 924 E551 N- K. TURNEULL BATH FOR GALVANZING Filed Dec. 13. 1923 Patented @ed 2, ld.
FIC L@ man non eanvenrzrnc.
Application led December 13, 1923. Serial. No. 680,559.
To all whom z't may concern.' f
Be it known that I, .NICHOLAS KING TURN- BULL, a British subject, residing at Millport, county of Bute, Scotland, haveinvented certain new and useful improvements in Baths forGalvanizing, of which the following is a specification.
This invention relates to baths for galvanizing metal articles such as wire, wire netting, sheets, tubes and other products by immersion in molten zinc in which the zinc or spelter floats upon a layer of heavier metal such as leadto which the heat is applied.
lt has been customary to heat galvanizing baths externally and the invention is designed to heat the bath internally without the escape of the products of combustion into the atmosphere and to successfully apply gas or oil firing. to the bath. y
According to the invention the galvanizing bath is constructed of steel with a series of tubes, itted with gas or oil burners, welded therein near the bottom and submerged in the molten lead.
The invention will be described with reference to the accompanying drawings.
Fig. 1 is a longltudinal sectionthrough galvanizin bath. Fig. 2 1s a transverse section of same. Fig. 3 is a longitudinal section through modified form of bath.
The galvanizing bath A is made of steel of ordinary form and at or near the bottom is fitted with heating tubes B either longitudinally or transversely of the bath which are welded into the sides of the bath. At the end of each 'tube a gas or oil burner C is fitted, eachf burner being separately controlled by al valve D supplied with :fuel
from a pipe E. rllhe oposite ends of thev tubes B connect with a t or duct B by which the products of combustion are carried away to the chimney. v
The tubes B are submerged in molten lead F to a depth of two or three inches. Above thelsurtace of this' molten lead collects the dross G that accumulates trom the articles being alvanized whilst above thisv agaln 1s the mo t'en zinc or spelter H.
The bathAl is formed with an inner lining A of refractory material closely secured-.to thesides and ends of the bath'but not to the bottom so that the bath may expand equally with the tubes, and which is preferably a non-conductor of heat and on which molten zinc has little or no action,
-and the o utside of the bath A is preferably lagged wlth a heat insulating material A2 such as slag Wool before being built up with bricks'As.
By this construction the baths are made more comfortable for the operatives to work near particularly during hot weather and no obnoxious fumes escape into the work shop as occurs with coke'red baths and also the baths are more accessible to the operatives than are any externally tired baths.
In the construction shown in Fig. 3 the tubes. B are fitted with .burners and fired from both ends, the flue or duct B? being'arranged to take away the products of combustrol and as the baths rest on a solid base having no iiues underneath or on their sides they can be insulated on the outside with a' vnon-conducting material which, together with the internal lining A -of a material unacted on by molten zinc and a` non-conductor of heat, ensuresa minimum loss of heat by radiation.
rlhe heatingtubes can be so arranged in relation to the work being galvanized and the heat in them so controlled as to ensure if so desired; a practically uniform temperature throughout the bath. ln the old type of baths heated from the sides and doing continuous work such as wires the zinc at `the sides was always slightly hotter than at most cases be considerably increased in some processes very materially (b) the baths last indefinitely (c) the work at the baths is easier, cleaner and cooler (d) the product is more uniform (le) thefuel costs including handling of fue and ashes are-low (f) the bath ,can be made lighter than in present practice (g) there are no reasonable limits to the dimensions of a bath either in width or length as heat can be applied to ensure a uniform temperature at every part of it.
What l claim as my invention and desire to protect by Letters Patent is An iron or steel bath for galvanizing metal articles in which the zinc or spelter covers a layer of heavier metal such as lead comprising in its construction a tank to contain the metal, a plurality of steel heating tubes se- Lamaze cured into the ends of the tank and passing through the tank near the bottom in such position as to be' submerged in the heavier metal, a plurality of burners fitted to heat the tubes; a ue to carry off the products of combustion from the tubes, an insulating lagging around the exterior of the-tank and an inner lining of refractory material closely secured to the sides and ends of the tank and extending below the surface of the lead.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
NICHOLAS KING TURNBULL.
Witnesses:
J. OWDEN OBRmN, GEORGE H. OBRIEN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US680559A US1517324A (en) | 1923-12-13 | 1923-12-13 | Bath for galvanizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US680559A US1517324A (en) | 1923-12-13 | 1923-12-13 | Bath for galvanizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1517324A true US1517324A (en) | 1924-12-02 |
Family
ID=24731589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US680559A Expired - Lifetime US1517324A (en) | 1923-12-13 | 1923-12-13 | Bath for galvanizing |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1517324A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2300309A1 (en) * | 1975-02-06 | 1976-09-03 | Engstfeld Wilh | CRUCIBLE FOR MELTING, WARM CONSERVATION AND METAL CASTING |
-
1923
- 1923-12-13 US US680559A patent/US1517324A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2300309A1 (en) * | 1975-02-06 | 1976-09-03 | Engstfeld Wilh | CRUCIBLE FOR MELTING, WARM CONSERVATION AND METAL CASTING |
| US4033564A (en) * | 1975-02-06 | 1977-07-05 | Wilh. Engstfeld, a Kommanditgesellschaft | Crucible for melting, heat retention and pouring of metals |
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