US1157984A - Method of melting and spraying fusible substances. - Google Patents

Method of melting and spraying fusible substances. Download PDF

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Publication number
US1157984A
US1157984A US849211A US1914849211A US1157984A US 1157984 A US1157984 A US 1157984A US 849211 A US849211 A US 849211A US 1914849211 A US1914849211 A US 1914849211A US 1157984 A US1157984 A US 1157984A
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United States
Prior art keywords
melting
substance
gas
tube
spraying
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US849211A
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Franz Herkenrath
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METALS COATING Co OF AMERICA
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METALS COATING Co OF AMERICA
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Priority claimed from US82613714A external-priority patent/US1151586A/en
Application filed by METALS COATING Co OF AMERICA filed Critical METALS COATING Co OF AMERICA
Priority to US849211A priority Critical patent/US1157984A/en
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Publication of US1157984A publication Critical patent/US1157984A/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium

Definitions

  • This invention relates to an. improved the present invention has been divided out.
  • the gas is thus in part analogous to that of the blow pipe flame used in' some forms of metal spraying but the gas. also. assists in subdividing the molten substance and projecting it at the requisite. velocity to forman impacted coating. It is usually vice. acting infconjunctionwith the stream of hot gas as in such a case the required env ter bycollars m, a and by; a holder is which 'ergy of spraying blast may be obtained without heating an excessive quantity of" spraying gas.
  • a designates a coiled tube of electrically conductive but resistant material, and b a feed pipe through which a stream of gas is supplied to the tube oz so that the gas issues from the'tube at 0.
  • an annular blast nozzle dto Around the discharge end 0 of the tube a, and concentric therewith, is an annular blast nozzle dto which is fed a stream of gas through a pipe e. Electric current is fed through the tubea by means of wires to and heats the said tube sufliciently to raise the gas therein to the arod or temperature required for melting wire f of the fusible substance he d in front of the nozzle andfedforward through a guide 9 at the rate required.
  • the concentric arrangement of-the hot and cold blasts has the effect that the substance is' melted by .a relatively small quantity of air or gas while the blast which supplies the necessary energy for subdivision and projection does not require to be heated and does not interfere with the proper melting of the point of the fusible substance which is preferably fed forward in wire or filamentary form.
  • atube a of refractory material incloses an electric resistance b, through which current is fed by mean-3 0f wires to.
  • a stream of gas is fed intc' the tube w by means of a pipe 6 and parses out through a short pipe 5 the discharge end of which is surrounded by an annular blast nozzle 03
  • the stream of gas flowing tjtrough the tube a is heated --by the resistance 6 to the temperature required for melting the fusible substance.
  • tube a of refractory material such as carbon, graphite, carborundum or the like is partly inclosed by a metal tube 72 into which a stream of gas is fed through a pipe 12
  • The-tube a which projects at c from the tube 6 is electrically insulated from the latin the wall of the tube a, so that the stream of gas fed through the pipe 6 into the interior r of thetube b passes through the ducts d into the tube a and is discharged from the latter outside the tube 6".
  • an annular blast nozzle d Electric current is fed through the tube a? by means of wires to and connections w", so that the tube becomes hot and heatsthe gas passing therethrough to the required temperature.
  • the step which consists in simultaneously subjecting the substance to a blast of unignited gas heated to a tem: perature above the melting point of said substance and at a pressure sufliciently high to disintegrate and project said substance while melting, and directing a separate blast on the fused portion of said substance.
  • the step which consists in subjecting the substance to a blast of chemically neutral unignited gas heated to a temperature above the melting said substance and at a pressure su ciently high to disintegrate and project said substance while melting.
  • the step which consists in subjecting the substance to a blast of chemically neutral unignited gas heated to a temperature above the melting oint of said substance and at a pressure su ciently high to disintegrate and project said substance while melting, and directing a separate blast on the fused portion of said substance.

Description

F. HERKIENRATH. METHOD OF MELTING AND SPRAYING FUSIBLE SUBSTANCES. APPLICATION FILED JULY 6, 1914.
Patented Oct. 26, 1915.
.iw 11111111411111wmllllzlzlzmM14 affn MMI? more economical to use a separate blast dernAlvz nnnKnNnA'rn, or ,zunrcn, swrrznnLAnn, .Assrenon, BY MnsnnAssrennears, r0 MErALs coArrne COMPANY or AMERICA, or nosron, ssnonusn'r'rs,
A CORPORATION OF MASSACHUSETTS.
METHOD OF MEL-TING: AND SPRAYINGr FUSIIBLE SUBSTANCES.
Specification of Letters Patent. Patented. 248, i915.
Original applicationfiled March 31, 191 Serial no. 826,137. Divided. am this application filed Jl'uly e,
- 19M. SeriaINo. amen To all whom it may concern Be it known that I, FRANZ HERKENRATH, a citizen of the German Empire, residing at Zurich, Switzerland,'have invented certain new and useful Improvements in the'Methods of Melting and'Spraying Fusible Substances, of which the following is a specific'ation.
This invention relates to an. improved the present invention has been divided out.
from my application Serial No. March 31st 1914.
. To this end-I use a stream of heated gas, in the path of which I place the fusible 826,137 filed substance, the temperature of the gas beingsufficiently high to melt the substance. The
functionpf the gas is thus in part analogous to that of the blow pipe flame used in' some forms of metal spraying but the gas. also. assists in subdividing the molten substance and projecting it at the requisite. velocity to forman impacted coating. It is usually vice. acting infconjunctionwith the stream of hot gas as in such a case the required env ter bycollars m, a and by; a holder is which 'ergy of spraying blast may be obtained without heating an excessive quantity of" spraying gas. c
Suitable apparatus for carrying this improved method into efiectare. shown in the accompanying drawings, in Figures 1, '2, 3 and 4: respectively, parts of the apparatus in all the views being shown in section.
Referring in the first instance to Fig. 1,
a designates a coiled tube of electrically conductive but resistant material, and b a feed pipe through which a stream of gas is supplied to the tube oz so that the gas issues from the'tube at 0. Around the discharge end 0 of the tube a, and concentric therewith, is an annular blast nozzle dto which is fed a stream of gas through a pipe e. Electric current is fed through the tubea by means of wires to and heats the said tube sufliciently to raise the gas therein to the arod or temperature required for melting wire f of the fusible substance he d in front of the nozzle andfedforward through a guide 9 at the rate required.
The concentric arrangement of-the hot and cold blasts has the effect that the substance is' melted by .a relatively small quantity of air or gas while the blast which supplies the necessary energy for subdivision and projection does not require to be heated and does not interfere with the proper melting of the point of the fusible substance which is preferably fed forward in wire or filamentary form.
In the modification shown in lzig. 2 atube a of refractory material incloses an electric resistance b, through which current is fed by mean-3 0f wires to. A stream of gas is fed intc' the tube w by means of a pipe 6 and parses out through a short pipe 5 the discharge end of which is surrounded by an annular blast nozzle 03 The stream of gas flowing tjtrough the tube a is heated --by the resistance 6 to the temperature required for melting the fusible substance.
In the modification shown in Fig. 3 a
tube a of refractory material such as carbon, graphite, carborundum or the likeis partly inclosed by a metal tube 72 into which a stream of gas is fed through a pipe 12 The-tube a which projects at c from the tube 6 is electrically insulated from the latin the wall of the tube a, so that the stream of gas fed through the pipe 6 into the interior r of thetube b passes through the ducts d into the tube a and is discharged from the latter outside the tube 6". The
an annular blast nozzle d. Electric current is fed through the tube a? by means of wires to and connections w", so that the tube becomes hot and heatsthe gas passing therethrough to the required temperature. temperature of 2000 Cfcan easily be attained with this arrangement, and gas can be fed throughthe tube a at high pressure withoutrisk of bursting the same, as the pressure outside the said tube is equal to that inside.
outer end'c of the tube a is surrounded by melted and sprayed is fed. The jtube a and the granular carbon therein are heated by a burner 27. Combustible or non 'combustible. gas may be used which acquires re-- ducmg properties by contact with the carbon in the tube a i \Vith the appliance shown in Figs. 1, 2 and 3, I preferably use gases of a chemically neutral or reducing quality in.order to prevent oxidation of the electric conductors and of the substance melted. I 3 z I claim: 1
1. In the method of melting'and spraying a fusible substance, the step which consists in simultaneously subjecting the substance to a blast of unignited gas heated to a tem: perature above the melting point of said substance and at a pressure sufliciently high to disintegrate and project said substance while melting, and directing a separate blast on the fused portion of said substance.
2. In the method of melting and spraying a fiisible substance, the step which consists in subjecting the substance to a blast of chemically neutral unignited gas heated to a temperature above the melting said substance and at a pressure su ciently high to disintegrate and project said substance while melting.
3. In the method of melting and spraying a fusible substance, the step which consists in subjecting the substance to a blast of chemically neutral unignited gas heated to a temperature above the melting oint of said substance and at a pressure su ciently high to disintegrate and project said substance while melting, and directing a separate blast on the fused portion of said substance.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
FRANZ HERKENRATH.
Witnesses CARL GUBLnn, FRANK Bonn.
oint of
US849211A 1914-03-21 1914-07-06 Method of melting and spraying fusible substances. Expired - Lifetime US1157984A (en)

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US849211A US1157984A (en) 1914-03-21 1914-07-06 Method of melting and spraying fusible substances.

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Application Number Priority Date Filing Date Title
US82613714A US1151586A (en) 1914-03-21 1914-03-21 Apparatus for melting and spraying fusible substances.
US849211A US1157984A (en) 1914-03-21 1914-07-06 Method of melting and spraying fusible substances.

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481543A (en) * 1947-04-30 1949-09-13 Owens Corning Fiberglass Corp Method and apparatus for producing glass fibers
US2489243A (en) * 1944-04-27 1949-11-22 Owens Corning Fiberglass Corp Method and apparatus for making fine glass fibers
US2489244A (en) * 1944-07-27 1949-11-22 Owens Corning Fiberglass Corp Combustion chamber burner
US2559572A (en) * 1947-04-30 1951-07-03 Owens Corning Fiberglass Corp Method and apparatus for producing glass fibers
US2569699A (en) * 1947-05-06 1951-10-02 Owens Corning Fiberglass Corp Method and apparatus for forming glass fibers
US2578101A (en) * 1947-10-15 1951-12-11 Owens Corning Fiberglass Corp Apparatus for producing fibers from glass and other heat softenable materials
US2607075A (en) * 1947-03-28 1952-08-19 Owens Corning Fiberglass Corp Method and apparatus for producing fine glass fibers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2489243A (en) * 1944-04-27 1949-11-22 Owens Corning Fiberglass Corp Method and apparatus for making fine glass fibers
US2489244A (en) * 1944-07-27 1949-11-22 Owens Corning Fiberglass Corp Combustion chamber burner
US2607075A (en) * 1947-03-28 1952-08-19 Owens Corning Fiberglass Corp Method and apparatus for producing fine glass fibers
US2481543A (en) * 1947-04-30 1949-09-13 Owens Corning Fiberglass Corp Method and apparatus for producing glass fibers
US2559572A (en) * 1947-04-30 1951-07-03 Owens Corning Fiberglass Corp Method and apparatus for producing glass fibers
US2569699A (en) * 1947-05-06 1951-10-02 Owens Corning Fiberglass Corp Method and apparatus for forming glass fibers
US2578101A (en) * 1947-10-15 1951-12-11 Owens Corning Fiberglass Corp Apparatus for producing fibers from glass and other heat softenable materials

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