Exothermic reaction welding molds, weld-metal containing cartridges for such molds, and methods of use

Patent metadata

Field	Value
Publication number	US-10239162-B2
Application number	US-201615137247-A
Country	US
Kind code	B2
Filing date	Apr 25, 2016
Priority date	Apr 24, 2015
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

Exothermic welding molds, weld-metal containing cartridges for such molds, and methods of use are provided. The mold, cartridges, and methods can provide interaction between the cartridge's disk member with the mold, which allows the housing member to be withdrawn from the mold while leaving the disk member and weld-metal in place. The interaction can be a rotational restraint alone, a vertical restraint alone, or combinations thereof. Alternately, the interaction can be an outward pressure on the housing member and/or disk member, a shear force on the housing member and/or disk member, or combinations thereof. The outward pressure on the housing member and/or disk member can alternately be provided without interaction between the disk member and the mold, but rather by the simple application of an internal pressure to the cartridge. The internal pressure can be applied by squeezing the walls of the cartridge and/or by depressing a pusher member.

First claim

What is claimed is:

1. A method of using welding molds and cartridges, comprising:
dropping a weld-metal containing cartridge into a mold so that a protrusion of a disk member is received in an indentation of the mold;
rotating the mold and cartridge with respect to one another so that the disk member is released from a housing member of the cartridge; and
withdrawing the housing member from the mold so that disk member and the weld-metal within the cartridge remain in the mold.

2. The method of claim 1 , wherein the rotating step comprises rotating the mold and cartridge with respect to one another so that the protrusion is received in an undercut area of the mold and rotating the mold and housing member with respect to one another so that the disk member is released from the housing member.

3. The method of claim 2 , wherein the withdrawing step comprises pushing on a pusher member so that the pusher member slides in the housing member while withdrawing the housing member from the mold so that the disk member and the weld-metal within the cartridge remain in the mold.

4. A method of using welding molds and cartridges, comprising:
dropping a cartridge into a mold, the cartridge including a disk member removably connected to a housing member with a weld-metal disposed therein;
interacting a portion of the mold with a portion of the disk member to disconnect the disk member from the housing member; and
withdrawing the housing member from the mold so that the disk member and the weld-metal within the cartridge remain in the mold.

5. The method of claim 4 , wherein the step of interacting the portion of the mold with the portion of the disk member comprises only rotationally restraining the disk member in the mold, only vertically restraining the disk member in the mold, or both rotationally and vertically restraining the disk member in the mold.

6. The method of claim 4 , wherein the step of interacting the portion of the mold with the portion of the disk member comprises applying an outward pressure on the housing member and/or the disk member, applying a shear force on the housing member and/or the disk member, or applying both the outward pressure and the shear force.

7. The method of claim 4 , wherein the withdrawing step further comprises pushing on a pusher member so that the pusher member slides in the housing member while withdrawing the housing member from the mold so that the disk member and the weld-metal within the cartridge remain in the mold.

8. A method of using welding molds and cartridges, comprising:
dropping a cartridge into a mold, the cartridge including a disk member removably connected to a housing member with a weld-metal disposed therein;
removing the disk member from the housing member while the cartridge is in the mold; and
withdrawing the housing member from the mold so that the disk member and the weld-metal within the cartridge remain in the mold.

9. The method of claim 8 , wherein the withdrawing step further comprises pushing on a pusher member so that the pusher member slides in the housing member while withdrawing the housing member from the mold so that the disk member and the weld-metal within the cartridge remain in the mold.

10. The method of claim 8 , wherein the step of removing the disk member from the housing member while the cartridge is in the mold comprises applying internal pressure to the housing member selected from the group consisting of squeezing side walls of the housing member, pushing on a pusher member so that the pusher member slides in the housing member, and combinations thereof.

Assignees

• Hubbell Inc

Inventors

• Hoagland Timothy Charles
• Lehmann Todd Carlton
• ABEDRABOH Mamoon Tawfiq
• Wu Xiaochen

Classifications

• B23K20/165

  involving an exothermic reaction of the interposed material · CPC title

• B23K35/02

  characterised by mechanical features, e.g. shape · CPC title

• B23D19/04

  having rotary shearing discs arranged in co-operating pairs · CPC title

• B23K35/0255

  for use in welding (B23K35/0205 takes precedence) · CPC title

• B23K35/0261 Primary

  Rods, electrodes or wires · CPC title