WO2002097152A2 - Apparatus for applying metal coatings on cast iron and steel products (modifications) - Google Patents
Apparatus for applying metal coatings on cast iron and steel products (modifications) Download PDFInfo
- Publication number
- WO2002097152A2 WO2002097152A2 PCT/RU2002/000256 RU0200256W WO02097152A2 WO 2002097152 A2 WO2002097152 A2 WO 2002097152A2 RU 0200256 W RU0200256 W RU 0200256W WO 02097152 A2 WO02097152 A2 WO 02097152A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- melt
- tank
- material inert
- bulk element
- cast iron
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 16
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 15
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 10
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 9
- 238000012986 modification Methods 0.000 title description 2
- 230000004048 modification Effects 0.000 title description 2
- 239000000155 melt Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 230000003247 decreasing effect Effects 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C23C2/003—Apparatus
- C23C2/0036—Crucibles
Definitions
- Present invention is related to applying the protective metal coatings on cast
- the closest analog of the present invention is the apparatus for the applying the
- the present invention solves the problem of increasing the reliability of the
- said melt or with coating from the material inert to the melt is provided with, at
- the tank and bulk element can be of cylindrical form.
- the bulk element can be placed coaxial to the tank.
- the tank can be vertically extended.
- said melt or with coating from the material inert to the melt is provided with, at
- the tank and bulk element can be of cylindrical form
- the bulk element can be placed coaxial to the tank;
- Apparatus comprises tank 2 filled with aluminum or zinc or their alloy melt 1
- the tank 2 is made vertically extended, i.e. its height is bigger than its
- the tank 2 in the melt 1 there is, at least, one bulk element 3, i.e. the element
- the said bulk element 3 is made like the tank 2 from the
- coating for example, on the
- said tank 2 and element 3 can be made of cylindrical shape.
- element 3 is placed, for example, coaxial to the tank 2.
- the apparatus has heaters placed outside of the tank 2 and made in a form of the electrical oven 4, and placed inside the said
- the apparatus has one heater, i.e. electrical oven 4 or electrical
- the apparatus has both heaters: electrical
- melt temperature is determined by its chemical composition
- Tubes 6 of smaller diameter than one of the bulk element 3 are plunged into the
- electrical spiral 5 allows to do extra heating from the inside, which provides
- Apparatus provides applying two-sided protective metal coatings on tubes of
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention refers to applying the protective metal coatings on cast iron and steel products by plunging them into the melt of aluminum, zinc and their alloys. The present invention provides the increasing of apparatus work reliability due to decreasing the melt volume and the surface square, providing the additional melt heating from the inside. Apparatus for applying the protective metal coatings on cast iron and steel products comprises tank 2 filled with aluminum or zinc or their alloy melt 1 and made from the material inert to the said melt 1 or with the coating material inert to the said melt 1. Inside the tank 2 in the melt 1 there is, at least, one bulk element 3 made from the material inert to the melt or with the coating material inert to the melt.
Description
APPARATUS FOR APPLYING METAL COATINGS ON CAST IRON
AND STEEL PRODUCTS (modifications)
Technical field
Present invention is related to applying the protective metal coatings on cast
iron and steel products, tubes of big diameter mainly, by plunging to the melt of
aluminum, zinc and their alloys.
Background of the invention
Units for applying the protective zinc coatings on the parts of steel
constructions and tubes by plunging to the melt are known. (Hot zinc plating
guidance. Leipzig. 1970. Metal coatings of sheet and bar steel. Vitkin A.I.,
Taidle I.I. Metallurgy, 1971, p.496).
The disadvantage of known units is that they equipped with metal and ceramic
tanks of horizontal type having big volume and significant square of melt
surface, which predetermines big power consumption on maintaining the melt
temperature. Contact of zinc melt and walls of the steel tank causes the
dissolvent of steel in the melt, increases its consumption for applying the
coating and decreases the working period of the equipment.
Using the steel tanks omits the possibility not only applying aluminum coatings
but also alloying zinc melt with aluminum. Although the ceramic tanks are not
resistant to the aluminum melt and aluminum alloyed zinc melt treatment, but it
has even larger volume in comparison to the metal ones. This is the case
because in contrast to the metal tanks with heating through the walls in the
ceramic tank the heating is provided through the melt surface, which causes
volume increasing.
The closest analog of the present invention is the apparatus for the applying the
protective metal coatings on the cast iron or steel product comprising the tank
filled with aluminum or zinc or their alloy and made from the material inert to
the said alloy, the melt heating to the working temperature is provided by
means of inductors-heaters with the magnetodynamic pump and the uniformity
of melt heating in the coating applying camera is reached by using the several
inductors placed on the special truck for the service comfort. (SU N° 1002415,
1983).
The disadvantage of this unit is the need of big amounts of melt with the open
surface of big square for the applying the coating on the long products. With
respect to this the large power consumption is needed. Besides, the plunged
equipment providing the heating and melt temperature maintenance takes
significant volume of the tank. Intensive mixing of the melt during the working
process of the inductors requires using the protective atmosphere above the
surface. Permanent melt circulation causes fast wearing of the plunged
equipment and tank fettling; at the same time the melt is contaminated with the
material of which the passages and fettling are made, which causes the decline
of the coating formation conditions and therefore the worse quality.
Summary of the invention
The present invention solves the problem of increasing the reliability of the
apparatus work due to decreasing the melt volume and the surface square. The
additional melt heating from the inside is provided in the second embodiment.
The solution of the said problem in the first embodiment of the present
invention is reached due to the apparatus for the applying the protective metal
coatings on the cast iron or steel product comprising the tank filled with
aluminum or zinc or their alloy melt and made from the material inert to the
said melt or with coating from the material inert to the melt is provided with, at
least, one bulk element placed inside the tank in the melt and made from the
material inert to the melt or with coating from the material inert to the melt,
and, at least, one heater placed outside of the tank or inside the said bulk
element.
The tank and bulk element can be of cylindrical form.
Besides, the bulk element can be placed coaxial to the tank.
At the same time the tank can be vertically extended.
The solution of the said problem in the second embodiment of the present
invention is reached due to the apparatus for the applying the protective metal
coatings on the cast iron or steel product comprising the tank filled with
aluminum or zinc or their alloy melt and made from the material inert to the
said melt or with coating from the material inert to the melt is provided with, at
least, one bulk element placed inside the tank in the melt and made from the
material inert to the melt or with coating from the material inert to the melt, and
heaters placed outside of the tank and inside the said bulk element.
In some cases according to this embodiment like in the previous embodiment:
- the tank and bulk element can be of cylindrical form;
- besides, the bulk element can be placed coaxial to the tank;
- at the same time the tank can be vertically extended.
Brief description of the drawing
The present invention is illustrated with the drawing of the general view of
apparatus for applying metal coatings on cast iron and steel products.
The example of the invention embodiment
Apparatus comprises tank 2 filled with aluminum or zinc or their alloy melt 1
and made from the material inert to the said melt 1, for example, ceramic, or
with the coating (not shown) material inert to the said melt 1, also, for example,
ceramic. The tank 2 is made vertically extended, i.e. its height is bigger than its
width and length, which causes the decreasing of the melt surface square. Inside
the tank 2 in the melt 1 there is, at least, one bulk element 3, i.e. the element
taking curtain volume and, consequently, displacing the curtain volume of melt
1 from the tank 2, which decreases the melt volume in the tank and also
decreases melt surface square if the higher part of the element will show over
the melt level 1. The said bulk element 3 is made like the tank 2 from the
material inert to the said melt 1 or with the coating material inert to the said
melt 1, for example, ceramic. For applying the coating, for example, on the
tubes, said tank 2 and element 3 can be made of cylindrical shape. The bulk
element 3 is placed, for example, coaxial to the tank 2. For the maintenance of
curtain temperature of the melt 1 the apparatus has heaters placed outside of the
tank 2 and made in a form of the electrical oven 4, and placed inside the said
bulk element 3 in a form, for example, of electrical spiral 5. In the first
embodiment the apparatus has one heater, i.e. electrical oven 4 or electrical
spiral 5. In the second embodiment the apparatus has both heaters: electrical
oven 4 and electrical spiral 5. Presence of the electrical spiral 5 provides extra
heating of the melt from the inside if it is necessary. Product, e.g. the tube, is
placed in the ring space between said tank 2 and bulk element 3.
Apparatus work is as following.
Tube 6 of bigger diameter than one of the bulk element 3 with preliminary
prepared surface is plunged vertically into the melt 1 heated to the working
temperature (melt temperature is determined by its chemical composition) by
the electrical oven 4 and/or the electrical spiral 5 so that the bulk element 3
would be inside the tube 6, then make leave it for coating of all its surface, take
out of the melt 1, remove melt excesses 1 and undergo the compulsory cooling.
Tubes 6 of smaller diameter than one of the bulk element 3 are plunged into the
melt between inside wall of tank 2 and bulk element 3. Presence of heater, e.g.
electrical spiral 5 allows to do extra heating from the inside, which provides
more uniform heating and prevents fast cooling.
Apparatus provides applying two-sided protective metal coatings on tubes of
big and small diameters using minimum melt volume, power consumption and
also significant decreasing of environment pollution due to the decreasing of
melt surface square.
Claims
1. Apparatus for the applying the protective metal coatings on the cast iron
or steel product comprising the tank filled with aluminum or zinc or their alloy
melt and made from the material inert to the said melt or with coating from the
material inert to the melt is provided with, at least, one bulk element placed
inside the tank in the melt and made from the material inert to the melt or with
coating from the material inert to the melt, and, at least, one heater placed
outside of the tank or inside the said bulk element.
2. Apparatus according to claim 1 wherein the tank and said bulk element
can be of cylindrical form.
3. Apparatus according to claim 1 wherein said bulk element can be placed
coaxial to the tank.
4. Apparatus according to claim 1 wherein the tank is vertically extended.
5. Apparatus for the applying the protective metal coatings on the cast iron
or steel product comprising the tank filled with aluminum or zinc or their alloy
melt and made from the material inert to the said melt or with coating from the
material inert to the melt is provided with, at least, one bulk element placed
inside the tank in the melt and made from the material inert to the melt or with
6. coating from the material inert to the melt, and heaters placed outside of
the tank and inside the said bulk element.
7. Apparatus according to claim 5 wherein the tank and said bulk element
can be of cylindrical form.
8. Apparatus according to claim 5 wherein said bulk element can be placed
coaxial to the tank.
9. Apparatus according to claim 5 wherein the tank is vertically extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002309367A AU2002309367A1 (en) | 2001-05-29 | 2002-05-28 | Apparatus for applying metal coatings on cast iron and steel products (modifications) |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001114300/02A RU2200207C2 (en) | 2001-05-29 | 2001-05-29 | Device for application of protective metal coats on cast-iron or steel parts |
| RU2001114300 | 2001-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002097152A2 true WO2002097152A2 (en) | 2002-12-05 |
| WO2002097152A3 WO2002097152A3 (en) | 2003-03-06 |
Family
ID=20250070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2002/000256 WO2002097152A2 (en) | 2001-05-29 | 2002-05-28 | Apparatus for applying metal coatings on cast iron and steel products (modifications) |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2002309367A1 (en) |
| RU (1) | RU2200207C2 (en) |
| WO (1) | WO2002097152A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2310011C2 (en) * | 2005-03-25 | 2007-11-10 | Общество с ограниченной ответственностью "Межотраслевое юридическое агентство "Юрпромконсалтинг" | Method of deposition of the aluminum or zinc coating on the products made out of the iron or the steel, the used alloys, fluxes and the produced products |
| AU2008364127B2 (en) | 2008-11-14 | 2014-09-18 | Clecim SAS | Method and device for measuring a chemical composition of a liquid metal suitable for coating a steel strip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR769059A (en) * | 1933-05-12 | 1934-08-18 | Processes for heating corrosive metal baths and installations for carrying out these processes | |
| FR1598753A (en) * | 1968-12-26 | 1970-07-06 | ||
| DE1771662A1 (en) * | 1968-06-24 | 1972-01-13 | Jenoptik Jena Gmbh | Device for tinning copper wires |
| FR2539761A1 (en) * | 1983-01-26 | 1984-07-27 | Sp P Konstruktor | Installation for depositing a protective coating on rolled sections by a hot method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1712460A1 (en) * | 1989-01-08 | 1992-02-15 | Всесоюзный научно-исследовательский, проектно-конструкторский и технологический институт электротермического оборудования | Induction channel furnace for coating steel |
-
2001
- 2001-05-29 RU RU2001114300/02A patent/RU2200207C2/en not_active IP Right Cessation
-
2002
- 2002-05-28 WO PCT/RU2002/000256 patent/WO2002097152A2/en not_active Application Discontinuation
- 2002-05-28 AU AU2002309367A patent/AU2002309367A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR769059A (en) * | 1933-05-12 | 1934-08-18 | Processes for heating corrosive metal baths and installations for carrying out these processes | |
| DE1771662A1 (en) * | 1968-06-24 | 1972-01-13 | Jenoptik Jena Gmbh | Device for tinning copper wires |
| FR1598753A (en) * | 1968-12-26 | 1970-07-06 | ||
| FR2539761A1 (en) * | 1983-01-26 | 1984-07-27 | Sp P Konstruktor | Installation for depositing a protective coating on rolled sections by a hot method |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPI Section Ch, Week 199301 Derwent Publications Ltd., London, GB; Class M13, AN 1993-007470 XP002225688 & SU 1 712 460 A (ELECTROTHERMAL EQUIP DES CONS INST), 15 February 1992 (1992-02-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2200207C2 (en) | 2003-03-10 |
| AU2002309367A1 (en) | 2002-12-09 |
| WO2002097152A3 (en) | 2003-03-06 |
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