US1521634A - Method of enameling centrifugally-cast pipe - Google Patents

Method of enameling centrifugally-cast pipe Download PDF

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Publication number
US1521634A
US1521634A US603758A US60375822A US1521634A US 1521634 A US1521634 A US 1521634A US 603758 A US603758 A US 603758A US 60375822 A US60375822 A US 60375822A US 1521634 A US1521634 A US 1521634A
Authority
US
United States
Prior art keywords
mold
metal
enamel
trough
enameling
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
Application number
US603758A
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English (en)
Inventor
James B Ladd
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.)
United States Cast Iron Pipe & Foundry Co
Us Cast Iron Pipe & Foundry Co
Original Assignee
Us Cast Iron Pipe & Foundry Co
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 to FR583070D priority Critical patent/FR583070A/fr
Application filed by Us Cast Iron Pipe & Foundry Co filed Critical Us Cast Iron Pipe & Foundry Co
Priority to US603758A priority patent/US1521634A/en
Application granted granted Critical
Publication of US1521634A publication Critical patent/US1521634A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • 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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/005—Coating with enamels or vitreous layers by a method specially adapted for coating special objects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/10—Pipe and tube inside

Definitions

  • My invention relates to the manufacture of pipe in rotating molds by the centrifugal process and has for its object to provide an efficient method of applying enamel to the inner surface of such pipes during the casting operation.
  • my invention consists in coating the enamel on the surface of the molten metal while it is still held in the container or trough through which said molten metal is introduced into the rotating mold and pouring the enamel into the-mold to gether with the melted metal.
  • My newly invented method will be best understood as described in connection with the drawings in which I have illustrated a suitable apparatus for carrying out my improved method in what I believe to be its best and most eflicient method 1 of application and in which- Figure 1' is a sectional side elevation,
  • Figure 2 is a cross section on the line 2--2 of'Fig. 1.
  • FIG. 1 embodies features of construction invented by meand forming the subject matter of co-pending applications for Letters Patent, no features of'the apparatus being specifically claimed in this application.
  • A is the frame supporting the molding apparatus which is preferentially inclined as indicated and which supports tracks indicated at A.
  • B is a casing in which the mold is supported and which forms the outer shell of a'water jacket surrounding the mold, this casing being supported on the tracks indicated at A by wheels indicated at B, B and the casing also having, as shown, a downwardly extending ear B C is a cylindrical casing rotatably supported in the casing B and forming the inner wall of the .water jacket which is indicated at D. provided at its left hand end with a gear wheel indicated at C which, through gears indicated at H, is rotated by a motor indicated at-H.
  • E is the mold proper which, as illustrated, is a sectional mold longitudinally adjustable in the casing C and having, as indicated at E, inclined surfaces which, when the mold is movedv toward the left, engage inclined surfaces on the casing 'C and clamp and hold the sections of the mold together.
  • a F indicates a core piece for the bell end of the pipe which, as shown, is secured in the left hand end of the mold E.
  • G is a. stop secured to the framing A and which, when the casing B carrying the mold with it, moves toward the left, comes incontact with the metal part of the core piece F with the effect that the sectional mold has its motion arrested before the motion of the casing B is arrested. This in effect shiftsthe mold toward the right in the casing, permitting its sections to be moved apart.
  • I is a piston rod secured to the ear B and extending from a piston working in the cylinder I. Pressure fluid is, of course, admitted and exhausted from the ends of the cylinder I through connections, not shown, and the mold moved downward or forward at will.
  • J is a frame supporting, as shown, a bottom pour ladle J.
  • K is an extension of the frame A on which is pivotally-supported the cylindrical extension ,K of a pouring trough indicated at K into which the melted metal flows from the ladle J.
  • L is a frame supporting a hopper indicated at L intended to contain finely powdered enamoling material and opening into a screw conveyor indicated at L through which the finely powdered enameling material is'fed with regulated speed intothe trough K as shown in Fig. 2, M indicat ing the stream of enamel falling on the metal in the trough K 7 p
  • the mold having been moved toward the right until the end of the trough This casing is K is at the extreme end of the mold, molten metal is permitted to flow from the ladle J into the trough K and through said trough into the mold, the metal running from the trough into the mold being indicated at N.
  • the mold Shortly after the metal begins to flow from the end of the trough into the mold the mold is given a progressive movement to the left and being in full rotation metal flowing into it from the trough is deposited in the mold in a spiral coil, the contacting portions of the coils fusing together so that with a complete movement of the mold a centrifugally cast pipe is formed in it and with the completion of the casting the flow of metal is cut oil, the casting extracted in any convenient way and subsequently a fresh casting made in the same way as above described.
  • the conveyor L As the molten metal flows through the trough toward the mold the conveyor L is put in operation and a regulated feed of finely powdered enamel is fed intothe trough K on topof the flowing stream of molten metal therein.
  • the heat of the metal will fuse the enamel but whether fused or partly fused the enamel is evenly distrib uted over the flowing stream of metal and delivered into the mold together with the metal so that it flows into the mold in proportionatequantity to the metal flowing into the mold and is evenly distributed throughout the length of the mold.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
US603758A 1922-11-28 1922-11-28 Method of enameling centrifugally-cast pipe Expired - Lifetime US1521634A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR583070D FR583070A (cs) 1922-11-28
US603758A US1521634A (en) 1922-11-28 1922-11-28 Method of enameling centrifugally-cast pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US603758A US1521634A (en) 1922-11-28 1922-11-28 Method of enameling centrifugally-cast pipe

Publications (1)

Publication Number Publication Date
US1521634A true US1521634A (en) 1925-01-06

Family

ID=24416782

Family Applications (1)

Application Number Title Priority Date Filing Date
US603758A Expired - Lifetime US1521634A (en) 1922-11-28 1922-11-28 Method of enameling centrifugally-cast pipe

Country Status (2)

Country Link
US (1) US1521634A (cs)
FR (1) FR583070A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327798A (en) * 1980-05-01 1982-05-04 American Cast Iron Pipe Company Method of applying flux
WO1994019511A1 (fr) * 1993-02-26 1994-09-01 Pont-A-Mousson S.A. Procede de fabrication d'une piece metallique revetue de materiaux mineraux, piece obtenue et son utilisation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327798A (en) * 1980-05-01 1982-05-04 American Cast Iron Pipe Company Method of applying flux
WO1994019511A1 (fr) * 1993-02-26 1994-09-01 Pont-A-Mousson S.A. Procede de fabrication d'une piece metallique revetue de materiaux mineraux, piece obtenue et son utilisation
FR2701963A1 (fr) * 1993-02-26 1994-09-02 Pont A Mousson Procédé de fabrication d'une pièce métallique revêtue de matériaux minéraux, pièce obtenue et son utilisation.
TR28278A (tr) * 1993-02-26 1996-04-05 Pont A Mousson Mineral malzeme ile kaplanmis metalik bir parcanin imal edilmesi usulü, elde edilen parca ve bunun kullanilmasi.

Also Published As

Publication number Publication date
FR583070A (cs) 1925-01-06

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