Non-consumable electrode
OwnerMikhail G. Fridlyand, Mikhail Z. Zhivov +2inventors
InventorsMikhail G. Fridlyand, Mikhail Z. Zhivov, Nina A. Lebedinskaya, Viktor M. Mokhov
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Abstract
Disclosed is a non-consumable electrode for arc processes, comprising a housing made of a heat and electrically conductive material and having an interior to supply a cooling liquid thereinto, a yoke made of a heat and electrically conductive material, fixed on said housing and having an interior to supply a cooling liquid therein, an active insert rigidly fixed in said yoke and formed as a truncated cone whose minor base faces the portion whereon an electrode drop region of an electric arc rests and whose major base faces the cooling interior and has a recess therein shaped as a spherical segment.
Claims3
An active insert for use in a non-consumable electrode, said insert comprising a truncated cone having a planar minor base and a major base defining a planar peripheral annulus and a central depression, the ratio of the thickness of said insert at the central axis thereof to the depth of the depression at said central axis being:
- A=H(0.3-0.7);
- D+2H>d>0.8D,
- wherein
- A is the thickness of said insert at the axis thereof
- H is the height of the cone
- D is the diameter of the minor base of the cone, and
- d is the diameter of the inner periphery of said annulus.
A non-consumable electrode for arc processes, comprising:
- a housing made of a heat and electrically conductive material and having an interior for feeding a cooling liquid thereinto;
- an active insert rigidly fixed to said housing and formed as a truncated cone whose major base is shaped as a spherical segment which has a first portion in face contact with an end face of said housing facing said interior and is shaped as a spherical segment;
- and
- the parameters of said spherical segment are determined according to the following relationships:
- h=H(0.3 to 0.7);
- D+2H>d>0.8D,
- where
- H is the height of the cone,
- h is the Height of the spherical segment,
- D is the diameter of the minor base of the cone, and
- d is the diameter of the base of the spherical segment.
Dependencies are inferred from the claim text.