A kind of aging treatment method of cobalt-based alloy wire

Abstract

The invention discloses an aging treatment method for a cobalt-based alloy wire. The aging treatment method comprises the following steps that 1, a heating furnace containing sand with the grain size smaller than 500 micrometers is heated to the needed aging temperature; and 2, the cobalt-based alloy wire machined to the needed diameter is inserted into the sand in the first step to be subjected to heat preservation for the needed aging duration. According to the aging treatment method, it is guaranteed that the heating temperature of the cobalt-based alloy wire is constant, the cobalt-based alloy wire can be prevented from being in direct contact with air, and oxidization is avoided; the temperature is rapidly increased to the aging temperature, the heat preservation time is shortened, and therefore defect elimination and atom segregation can be facilitated; meanwhile, coarse grains can be avoided, and it is guaranteed that the toughness of the cobalt-based alloy wire is not reduced while the strength of the cobalt-based alloy wire is improved; the problem that strict sealing performance, operation complexity, the vacuum pumping and releasing long-time characteristic and the like are required under the vacuum heating condition can be avoided, operation is convenient, and high efficiency is achieved; and the problem of the uneven structure of the cobalt-based alloy wire is solved, and the aging treatment method can be widely applied to coil heat treatment.

Description

technical field

[0001] The invention relates to the manufacturing technology of cobalt-based alloy wire, in particular to an aging treatment method for cobalt-based alloy wire. Background technique

[0002] Cobalt-based alloy is a cemented carbide resistant to various types of wear and corrosion as well as high temperature oxidation. That is commonly referred to as cobalt-chromium-tungsten (molybdenum) alloys, cobalt-based alloys are mainly composed of cobalt, containing a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium, lanthanum, and occasionally A class of alloys that also contain iron. According to the different components in the alloy, they can be made into welding wire, powder for hard surfacing, thermal spraying, spray welding and other processes, and can also be made into castings and forgings and powder metallurgy parts.

[0003] Among them, MP35N alloy is a high-performance ...

Examples

Embodiment Construction

[0033] This embodiment takes MP35N alloy wire as an example to further illustrate the aging treatment method of the present invention. The aging treatment method of this embodiment improves the atomic segregation and defect elimination in the aging treatment process of MP35N alloy wire. It is beneficial to the elimination of defects and the redistribution of elements and avoids coarse grains, thereby improving the strength of MP35N alloy wire and maintaining its toughness, and finally improving the service performance of MP35N alloy.

[0034] The MP35N alloy wire of this embodiment is obtained by cold drawing, and the deformation is controlled at 60%. The material involved in the MP35N alloy wire is a cobalt-based alloy with an element content of 35% Co, 35% Ni, 20% Cr, and 10% Mo. (MP35N) wire.

[0035] The aging treatment method of the MP35N alloy wire of the present embodiment may further comprise the steps:

[0036] Step 1: Place a certain amount of sand (mainly SiO2) in ...

technical field

[0001] The invention relates to the manufacturing technology of cobalt-based alloy wire, in particular to an aging treatment method for cobalt-based alloy wire. Background technique

[0002] Cobalt-based alloy is a cemented carbide resistant to various types of wear and corrosion as well as high temperature oxidation. That is commonly referred to as cobalt-chromium-tungsten (molybdenum) alloys, cobalt-based alloys are mainly composed of cobalt, containing a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium, lanthanum, and occasionally A class of alloys that also contain iron. According to the different components in the alloy, they can be made into welding wire, powder for hard surfacing, thermal spraying, spray welding and other processes, and can also be made into castings and forgings and powder metallurgy parts.

[0003] Among them, MP35N alloy is a high-performance ...

Examples

Embodiment Construction

[0033] This embodiment takes MP35N alloy wire as an example to further illustrate the aging treatment method of the present invention. The aging treatment method of this embodiment improves the atomic segregation and defect elimination in the aging treatment process of MP35N alloy wire. It is beneficial to the elimination of defects and the redistribution of elements and avoids coarse grains, thereby improving the strength of MP35N alloy wire and maintaining its toughness, and finally improving the service performance of MP35N alloy.

[0034] The MP35N alloy wire of this embodiment is obtained by cold drawing, and the deformation is controlled at 60%. The material involved in the MP35N alloy wire is a cobalt-based alloy with an element content of 35% Co, 35% Ni, 20% Cr, and 10% Mo. (MP35N) wire.

[0035] The aging treatment method of the MP35N alloy wire of the present embodiment may further comprise the steps:

[0036] Step 1: Place a certain amount of sand (mainly SiO2) in ...

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