WO2020231454A1 - Appareil de galvanisation en continu pour de multiples tiges - Google Patents

Appareil de galvanisation en continu pour de multiples tiges Download PDF

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Publication number
WO2020231454A1
WO2020231454A1 PCT/US2019/048694 US2019048694W WO2020231454A1 WO 2020231454 A1 WO2020231454 A1 WO 2020231454A1 US 2019048694 W US2019048694 W US 2019048694W WO 2020231454 A1 WO2020231454 A1 WO 2020231454A1
Authority
WO
WIPO (PCT)
Prior art keywords
kettle
liquid
trough
set forth
continuous galvanizing
Prior art date
Application number
PCT/US2019/048694
Other languages
English (en)
Inventor
Christopher Stephen Mason
Russell Wayne Patterson
Original Assignee
Western Technologies, Inc.
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
Priority claimed from US16/411,412 external-priority patent/US11242590B2/en
Application filed by Western Technologies, Inc. filed Critical Western Technologies, Inc.
Priority to CA3139664A priority Critical patent/CA3139664A1/fr
Publication of WO2020231454A1 publication Critical patent/WO2020231454A1/fr

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
    • 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
    • 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
    • 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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/38—Wires; Tubes

Definitions

  • the present invention relates to an apparatus to simultaneously galvanize multiple rods and a process therefor.
  • the present invention is directed to a continuous galvanizing apparatus and a process therefor that can simultaneously galvanize multiple rebar rods continuously without any manual intervention.
  • Galvanization provides both barrier protection and corrosion resistance.
  • Hot-dip galvanization is known wherein a metal object is dipped into a liquid bath of the zinc. Upon cooling, the zinc forms a protective barrier coating and provides corrosion resistance. More recently, iron or steel materials have been hot-dipped in a continuous line. In addition, continuous galvanization of items has been performed by passing an item through a flooded trough.
  • the present invention is directed to a continuous galvanizing apparatus for multiple rods.
  • the apparatus includes a kettle for heating and retaining a liquid therein with at least a portion of the kettle having an open top.
  • the liquid is liquid zinc or liquid zinc alloy.
  • a trough assembly includes an elongated trough for retaining the liquid therein with the trough arranged above the kettle open top.
  • the trough assembly has at least one lower chamber positioned and located within the kettle below a level of liquid in the kettle.
  • a pump or pumps in the lower chamber of the trough assembly draws liquid from the kettle and moves it into the lower chamber of the trough assembly.
  • the trough is thereafter filled.
  • An overflow chamber is separated from the trough of the trough assembly by a weir wherein the overflow chamber is in fluid communication with said kettle.
  • a plurality of entry openings are provided in the trough of the trough assembly.
  • a plurality of exit openings in the trough are opposed to and aligned with the entry openings.
  • Each entry opening includes a tapered entry guide.
  • Each exit opening includes a tapered exit guide.
  • An angled deflector is positioned beneath the tapered entry guides. Likewise, an angled deflector is positioned beneath the tapered exit guides.
  • a plurality of adjacent, parallel tubes in the elongated trough of the trough assembly are aligned with the plurality of entry openings and with the plurality of exit openings.
  • Each of the plurality of adjacent tubes includes a plurality of slots in order to permit passage of the liquid.
  • Figure 1 is a top view of a continuous galvanizing apparatus for multiple rods constructed in accordance with the present invention
  • Figure 2 is a sectional view taken along section line 2-2 of Figure 1;
  • Figure 3 is a sectional view taken along section line 3-3 of Figure 1;
  • Figure 4 is an enlarged, partial view of a portion of the apparatus shown in Figure 3.
  • Figure 5 is a sectional view taken along section line 5-5 of Figure 4.
  • Figure l is a top view of a continuous galvanizing apparatus 10 for multiple rods.
  • the apparatus 10 contains a liquid reservoir or kettle 12 for heating and retaining a liquid therein.
  • FIG. 2 illustrates a view taken along section line 2-2 of Figure 1 while Figure 3 illustrates a view taken along section line 3-3 of Figure 1.
  • the apparatus 10 includes a liquid reservoir or kettle 12 acting as a storage container for the liquid.
  • the kettle 12 is a substantially elongated container which retains and heats a liquid therein.
  • the liquid is heated liquid zinc or heated zinc and aluminum alloy.
  • a portion 14 of the top of the kettle 12 may be closed although at least a portion 16 of the kettle 12 contains an open top.
  • a trough assembly is arranged above the open top portion 16 of the kettle 12.
  • the trough assembly includes a trough 20 arranged above an open top of the kettle. Braces or beams support the trough 20 above the kettle.
  • the trough assembly includes at least one lower chamber 26 which is at least partially within the kettle 12 and at least partially below a level of liquid in the kettle 12.
  • the lower chamber 26 is substantially fluid tight with an open top in fluid communication with the trough 20.
  • the lower chamber 26 has a series of lower pump inlet openings which operate in conjunction with pumps 30 (to be described). Accordingly, liquid in the trough assembly will initially fill the lower chamber 26 and, as the liquid level rises, thereafter fill the trough 20.
  • Arrow 18 in Figures 1 and 2 illustrates the direction that the rebar (not seen) will travel entering into and passing through the apparatus 10.
  • At least one pump 30 in each lower chamber 26 will draw liquid from the kettle 12 into the lower chamber 26, as shown by arrows 32.
  • three pumps 30 are utilized.
  • Motors 22 connected to the pumps 30 by shafts 24 drive the pumps 30.
  • the motors 22 may be located above the kettle 12.
  • each entry opening 40 has a tapered entry guide 42 extending from the trough. Accordingly, the entry guide 42 acts as a guide for the incoming metal rods or rebar (not shown).
  • the trough 20 also includes a plurality of exit openings 50.
  • a tapered exit guide 52 extends from each exit opening 50 and acts as a guide for the metal rods or rebar exiting the trough assembly.
  • the tubes 60 are cylindrical and substantially parallel to each other although other arrangements are possible.
  • the tubes 60 extend in a substantially transverse direction within the elongated trough 20.
  • the adj acent tubes 60 are aligned with the plurality of entry openings 40 and aligned with the exit openings 50 so that they provide a guide for the metal rods or rebar passing therethrough.
  • Each of the tubes has a plurality of slots 64 to permit passage of liquid from the trough 20 into and out of the tubes 60.
  • the tapered entry guides 42 are above the open top 16 of the kettle 12. Accordingly, liquid from the trough 20 may pass through the entry openings 40, through the tapered entry guides 42, and thereafter fall by gravity into the open top of the kettle.
  • a series of angled deflectors 66 reduce splashing and turbulence of the liquid as it moves toward the kettle.
  • the tapered exit guides 52 are above the open top of the kettle 12.
  • a series of exit angled deflectors 70 reduce splashing and turbulence of the liquid as it moves toward the kettle.
  • a drain or drains 54 assists in permitting liquid to return to the kettle 12. Accordingly, the liquid moves in a continuous loop from the kettle 12 into the lower chamber of the trough assembly, into the trough 20, into the adjacent tubes where the rebar is galvanized, over a weir 62, and back to the kettle 12.
  • an angled deflector or deflectors 56 are positioned beneath the tapered entry guides.
  • an angled deflector or deflectors 58 are positioned beneath the tapered exit guides.
  • an overflow chamber 48 is separated from the trough 20 by the weir 62.

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)

Abstract

L'invention concerne un appareil de galvanisation en continu pour de multiples tiges. L'appareil comprend un chaudron pour chauffer et retenir un liquide dans celui-ci, au moins une partie du chaudron ayant une partie supérieure ouverte. Un ensemble cuvette retient le liquide. L'ensemble cuvette est disposé au-dessus de la partie supérieure ouverte du chaudron au-dessus du niveau de liquide, l'ensemble cuvette ayant au moins une chambre inférieure à l'intérieur du chaudron au-dessous d'un niveau de liquide dans le chaudron. Une pompe dans la chambre inférieure aspire le liquide depuis le chaudron vers l'ensemble cuvette. Une pluralité d'ouvertures d'entrée sont disposées dans l'ensemble cuvette conjointement avec une pluralité d'ouvertures de sortie opposées aux ouvertures d'entrée et alignées avec celles-ci. Des tubes adjacents dans l'ensemble cuvette sont alignés avec la pluralité d'ouvertures d'entrée et de sortie.
PCT/US2019/048694 2019-05-14 2019-08-29 Appareil de galvanisation en continu pour de multiples tiges WO2020231454A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3139664A CA3139664A1 (fr) 2019-05-14 2019-08-29 Appareil de galvanisation en continu pour de multiples tiges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/411,412 US11242590B2 (en) 2017-04-18 2019-05-14 Continuous galvanizing apparatus for multiple rods
US16/411,412 2019-05-14

Publications (1)

Publication Number Publication Date
WO2020231454A1 true WO2020231454A1 (fr) 2020-11-19

Family

ID=73289699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/048694 WO2020231454A1 (fr) 2019-05-14 2019-08-29 Appareil de galvanisation en continu pour de multiples tiges

Country Status (2)

Country Link
CA (1) CA3139664A1 (fr)
WO (1) WO2020231454A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115491626A (zh) * 2022-10-08 2022-12-20 安徽汇源镀锌有限公司 一种连续式热镀锌机构
EP4209435A3 (fr) * 2022-01-05 2023-10-04 Commercial Metals Company Appareil et procédé de galvanisation d'objets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5527563A (en) * 1991-06-25 1996-06-18 Allied Tube & Conduit Corporation Flow coat galvanizing
KR970070250A (ko) * 1996-04-02 1997-11-07 이대원 리드프레임 스트라이크 도금장치
KR20010042341A (ko) * 1998-04-01 2001-05-25 야마오카 요지로 용융아연계 도금방법 및 그 장치
KR101017291B1 (ko) * 2010-08-18 2011-02-28 은성산업(주) 플렉시블 플랫케이블 연속도금용 전극장치
US20190002213A1 (en) * 2017-06-29 2019-01-03 Azz, Inc. Process for continuously galvanizing elongated articles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5527563A (en) * 1991-06-25 1996-06-18 Allied Tube & Conduit Corporation Flow coat galvanizing
KR970070250A (ko) * 1996-04-02 1997-11-07 이대원 리드프레임 스트라이크 도금장치
KR20010042341A (ko) * 1998-04-01 2001-05-25 야마오카 요지로 용융아연계 도금방법 및 그 장치
KR101017291B1 (ko) * 2010-08-18 2011-02-28 은성산업(주) 플렉시블 플랫케이블 연속도금용 전극장치
US20190002213A1 (en) * 2017-06-29 2019-01-03 Azz, Inc. Process for continuously galvanizing elongated articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4209435A3 (fr) * 2022-01-05 2023-10-04 Commercial Metals Company Appareil et procédé de galvanisation d'objets
US11946145B2 (en) 2022-01-05 2024-04-02 Commercial Metals Company Gate system, canopy mount, and roller for a kettle or trough used for galvanizing objects
CN115491626A (zh) * 2022-10-08 2022-12-20 安徽汇源镀锌有限公司 一种连续式热镀锌机构

Also Published As

Publication number Publication date
CA3139664A1 (fr) 2020-11-19

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