US428834A - Method of welding aluminium - Google Patents
Method of welding aluminium Download PDFInfo
- Publication number
- US428834A US428834A US428834DA US428834A US 428834 A US428834 A US 428834A US 428834D A US428834D A US 428834DA US 428834 A US428834 A US 428834A
- Authority
- US
- United States
- Prior art keywords
- aluminium
- metal
- chloride
- welding aluminium
- sodium
- 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
Links
- 239000004411 aluminium Substances 0.000 title description 20
- 229910052782 aluminium Inorganic materials 0.000 title description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 20
- 238000003466 welding Methods 0.000 title 2
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000011734 sodium Substances 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 10
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 10
- 229910052708 sodium Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 210000001503 Joints Anatomy 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
Definitions
- a solder for aluminium has long been sought for by chemists, metallurgists, and jewelers, but without success; and nice work in this metal where joints were necessary could onlybe accomplished by means of gold or silver rivets, or by the use of wire rivets made from aluminium; Electrical fusion of the metal has been employed; but its great cost and complexity place it beyond the use of ordinary artisans.
- the following simple process for soldering orjoining the metal can be used by any person who can use a mouth blowpipe.
- a smooth piece of wood charcoal or on any convenient or suitable holder or support lay a small quantity of common salt (chloride of sodium) moistened.
- chloride of sodium common salt
- any sharp-pointed instrument penetrate the molten edges of the metal at the joint, thus facilitating the j une tion by removing the oxide and allowingt-he metal to flow from one side to the other of the joint.
- the chloride of sodium is volatilized, and under the heat of the flame the sodium engages the oxide of the film on the surface of the aluminium, and the chloride of aluminium takes its plaeet'. e., the place of the oxide.
- This chloride of aluminium being volatile, is expelled from between the surfaces to be joined, leaving clean metallic surfaces to unite.
- the water formed by combustion and that adhering to the chloride of sodium is driven off and the excess of oxygen from the atmosphere continues to act upon the vaporized chloride of sodium.
- the chemical reaction is probably as follows: GNaCl-l-Al OS+II2OITIQ O+Al Cl 6 6 Na +O+O+O+ A1 0 &c.
- WVhat I claim to be new is The process herein described of uniting together pieces of aluminium, which consists in first removing the oxide from the contacting surfaces of the pieces by chemical action under heat, substantially as set forth, and at the same time softening the contacting parts by the heat, then mechanically puncturing and displacing the molten metal at the joint, so that it will flow from one side to the other and form a union.
Description
UNITED STATES PATENT OFFICE.
MICHAEL EMME, OF ATLANTA, GEORGIA.
METHOD OF WELDING A LUMI NIUM.
SPECIFICATION forming part of Letters Patent No. 428,834, dated May 27, 1890.
Application filed January 1 1, 1890. Serial No. 336,428. (No specimens.)
To all whom it may concern.-
Be it known that I, MICHAEL EMME, of Atlanta, Fulton county, Georgia, have invented a Method of Soldering, Joining, or WVelding, or Uniting by a Metallic Cement Pieces of Aluminium, of which the following is a specification.
A solder for aluminium has long been sought for by chemists, metallurgists, and jewelers, but without success; and nice work in this metal where joints were necessary could onlybe accomplished by means of gold or silver rivets, or by the use of wire rivets made from aluminium; Electrical fusion of the metal has been employed; but its great cost and complexity place it beyond the use of ordinary artisans.
The following simple process for soldering orjoining the metal (aluminium) can be used by any person who can use a mouth blowpipe. On a smooth piece of wood charcoal or on any convenient or suitable holder or support lay a small quantity of common salt (chloride of sodium) moistened. On top of this bed of salt fixforinstance, on pins or by binding-wires-the pieces of aluminium to be joined or soldered in position, and project on the joint to be made a flamethat, for instance, of a b1ow-pipeuntil the metal softens under the heat. \Vith any sharp-pointed instrument penetrate the molten edges of the metal at the joint, thus facilitating the j une tion by removing the oxide and allowingt-he metal to flow from one side to the other of the joint. The chloride of sodium is volatilized, and under the heat of the flame the sodium engages the oxide of the film on the surface of the aluminium, and the chloride of aluminium takes its plaeet'. e., the place of the oxide. This chloride of aluminium, being volatile, is expelled from between the surfaces to be joined, leaving clean metallic surfaces to unite. The water formed by combustion and that adhering to the chloride of sodium is driven off and the excess of oxygen from the atmosphere continues to act upon the vaporized chloride of sodium. The chemical reaction is probably as follows: GNaCl-l-Al OS+II2OITIQ O+Al Cl 6 6 Na +O+O+O+ A1 0 &c.
The foregoing is a suitable formula for practicing my invention; but it may be varied somewhat without departing from the substance of my discovery.
I have stated above what I deem to be the rationale of my invention; but in this I may be in error.
WVhat I claim to be new is The process herein described of uniting together pieces of aluminium, which consists in first removing the oxide from the contacting surfaces of the pieces by chemical action under heat, substantially as set forth, and at the same time softening the contacting parts by the heat, then mechanically puncturing and displacing the molten metal at the joint, so that it will flow from one side to the other and form a union.
In testimony of all which I have hereunto subscribed my name.
MICHAEL EMME.
Witnesses:
N. R. FOWLER, J. A. VAN WINKLE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US428834A true US428834A (en) | 1890-05-27 |
Family
ID=2497744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US428834D Expired - Lifetime US428834A (en) | Method of welding aluminium |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US428834A (en) |
-
0
- US US428834D patent/US428834A/en not_active Expired - Lifetime
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