DE850257C - Pan for holding molten metal, in particular molten zinc - Google Patents

Pan for holding molten metal, in particular molten zinc

Info

Publication number
DE850257C
DE850257C DED1376D DED0001376D DE850257C DE 850257 C DE850257 C DE 850257C DE D1376 D DED1376 D DE D1376D DE D0001376 D DED0001376 D DE D0001376D DE 850257 C DE850257 C DE 850257C
Authority
DE
Germany
Prior art keywords
pan
molten metal
metal
holding
molten
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
Application number
DED1376D
Other languages
German (de)
Inventor
Wilhelm Dr-Ing Habil Raedeker
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.)
RHEINISCHE ROEHRENWERKE AG
Original Assignee
RHEINISCHE ROEHRENWERKE AG
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 RHEINISCHE ROEHRENWERKE AG filed Critical RHEINISCHE ROEHRENWERKE AG
Priority to DED1376D priority Critical patent/DE850257C/en
Application granted granted Critical
Publication of DE850257C publication Critical patent/DE850257C/en
Expired 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
    • 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

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)

Description

Pfanne zur Aufnahme von Metallschmelzen, insbesondere Zinkschmelzen Die bekannten, in Feuerverzinkungs-, -verbleiungs-, -verzinnungs- und anderen Metallisierungsbetrieben gebräuchlichen Metallpfannen werden häiufig in sehr kurzer Zeit unbrauchbar. Dies kommt daher, weil die aus Stahl -bestehenden Wände solcher Pfannen durch die lösende Wirkung der Metallschmelzen aufgezehrt werden. Man hilft sich dann durch Verwendung solcher Stähle, die einen besonderen Widerstand gegen diese lösende Wirkung besitzen. Bei Zink ist z. B. bekannt, daß sehr kohlenstoff- und manganarmer SIM-Stahl einen hohen Widerstand hiergegen besitzt. Pfannen aus derartigem Material haben dann wieder den Nachteil, daß sie einer zweiten Art von Zerstörung leicht ausgesetzt sind. Diese besteht darin, daß der Stahl unter dem Gewicht des Pfanneninhaltes bei der erhöhten Temperatur zu fließen beginnt. Bei diesem Fließen tritt eine interkristalline Zerstörung des Metalls durch die Metallschmelzen ein. Man ist aus diesem Grunde gezwungen, verhältnismäßig dicke Wandstärken zu verwenden. Dies hat aber insofern Nachteile, als der Wärmestau und die Eigenspannungen beim Beheizen groß sind. Beide. wirken sich wiederum in der begrenzten Lebensdauer örtlich überbeanspruchter Teile solcher Pfannen aus. Erfindungsgemäß werden die geschilderten Nachteile dadurch behoben, daß man eine Pfanne aus plattiertenBlechen herstellt, welche im Innern eine verhältnismäßig dünne Schicht eines beständigen, sehr weichen, kohlenstoff- und manganarmen Stahles aufweist, während die Außenschicht aus einem warmfesten Stahl besteht.Pan for holding molten metal, in particular molten zinc The well-known ones in hot-dip galvanizing, lead-coating, tin-tinning and other metallizing companies Common metal pans often become unusable in a very short time. this This is because the steel-made walls of such pans through the loosening Effect of the molten metal are consumed. You then help yourself by using it those steels that have a particular resistance to this dissolving effect. In the case of zinc, for. B. known that very carbon and low manganese SIM steel one has high resistance to this. Pans made of such a material then have again the disadvantage that they are easily subject to a second type of destruction. These consists in the fact that the steel under the weight of the ladle contents at the increased Temperature begins to flow. During this flow, intergranular destruction occurs of the metal through the molten metal. For this reason one is forced to use relatively thick walls. But this has disadvantages insofar as than the heat build-up and internal stresses during heating are great. Both. works in turn in the limited service life of locally overstressed parts of such Pans off. According to the invention, the disadvantages outlined are eliminated by that a pan is made from clad sheets, which in the Inside a relatively thin layer of a durable, very soft, carbon- and low-manganese steel, while the outer layer is made of a heat-resistant Steel is made.

Claims (1)

PATENTANSPRUCH: Pfanne zur Aufnahme von zur Herstellung von Metallüberzügen bestimmten Metallschmelzen, insbesondere Zinkschmelzen, bei .der die Pfannenwand aus zwei miteinander plattierten Schichten besteht, gekennzeichnet durch einen solchen Aufbau dieser Wand, daß die äußere, aus einem warmfesten Werkstoff bestehende Schicht derselben so bemessen ist, daß sie das Auftreten. von Zugspannungen in der dünneren, aus einem weichen, gegen die Metallschmelzen korrosionsbeständigen Werkstoff bestehenden Innenschicht und damit deren unter dem Einfluß der Metallschmelzen bedingte interkristalline Zerstörung sicher verhindert. Angezogene Druckschriften: Deutsche Patentschrift Nr. 6o8 75o. PATENT CLAIM: Pan for holding metal melts intended for the production of metal coatings, in particular zinc melts, in which the pan wall consists of two layers clad with one another, characterized by a structure of this wall such that the outer layer, consisting of a heat-resistant material, is dimensioned in such a way that they are occurring. of tensile stresses in the thinner inner layer consisting of a soft material that is corrosion-resistant to the molten metal and thus reliably prevents its intergranular destruction caused by the influence of the molten metal. Referred publications: German patent specification No. 6o8 75o.
DED1376D 1941-05-06 1941-05-06 Pan for holding molten metal, in particular molten zinc Expired DE850257C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED1376D DE850257C (en) 1941-05-06 1941-05-06 Pan for holding molten metal, in particular molten zinc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED1376D DE850257C (en) 1941-05-06 1941-05-06 Pan for holding molten metal, in particular molten zinc

Publications (1)

Publication Number Publication Date
DE850257C true DE850257C (en) 1952-09-22

Family

ID=7029237

Family Applications (1)

Application Number Title Priority Date Filing Date
DED1376D Expired DE850257C (en) 1941-05-06 1941-05-06 Pan for holding molten metal, in particular molten zinc

Country Status (1)

Country Link
DE (1) DE850257C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608750C (en) * 1931-04-14 1935-01-31 Arthur Marre Process for the production of highly refractory crucibles u. like

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608750C (en) * 1931-04-14 1935-01-31 Arthur Marre Process for the production of highly refractory crucibles u. like

Similar Documents

Publication Publication Date Title
DE3528026A1 (en) VESSEL FOR COOKING FOOD AND SIMILAR
DE850257C (en) Pan for holding molten metal, in particular molten zinc
DE1915300C3 (en) Glass melting vessel for a glass melt that is drawn into a glass thread through a multitude of openings in the base of the vessel
EP1072054B1 (en) Retaining ring and target and method for producing same
DE633484C (en) Roller for conveyor ovens
DE1792333C3 (en) Ultra high pressure apparatus
DE666344C (en) Cast container with a partition cast into the wall
DE2717641C3 (en) Cooling element for a metallurgical furnace, in particular for a blast furnace
DE2107200C3 (en) Process for the production of closed metal containers
AT503965B1 (en) DESTILLIERMASCHINE
AT84424B (en) Drying drum.
DE883954C (en) Saucepan to prevent burning and overflowing, especially milk
DE594176C (en) Attachment vessel for thinning and steaming food
DE898295C (en) Ceramic containers resistant to large and sudden changes in temperature, especially for the production of artificial gemstones
DE1945272C (en) Humidifier with a Heizvor direction
DE2129992A1 (en) Process for the production of welding wires and welding wires produced by this process
DE950646C (en) Crucible for hot baths like
AT89759B (en) Discharge vessel made of glass.
DE689446C (en)
DE932063C (en) Containers lined with thin sheets of corrosion-resistant metals
DE1257685B (en) Convection drum dryer
AT128786B (en) Crucibles for the thermal treatment of metals, alloys or objects made from such in molten baths.
DE801803C (en) Process for the production of pressed internal combustion engine pistons from light metal
AT51683B (en) Cast iron stove top.
DE612864C (en) Device for burning out barrels