Nickel-based welding wire, manufacturing method of nickel-based welding wire and welding process of nickel-based welding wire

A technology of manufacturing method and welding process, applied in the direction of manufacturing tools, welding equipment, welding medium, etc., can solve the problems of poor welding effect and so on

Active Publication Date: 2022-05-17
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first object of the present invention is to provide a nickel-based welding wire to solve the existing technical problem of poor welding effect of heat transfer tubes of Incoloy800H material

Method used

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  • Nickel-based welding wire, manufacturing method of nickel-based welding wire and welding process of nickel-based welding wire
  • Nickel-based welding wire, manufacturing method of nickel-based welding wire and welding process of nickel-based welding wire
  • Nickel-based welding wire, manufacturing method of nickel-based welding wire and welding process of nickel-based welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Step 1: Weigh the powder, and weigh the powder according to the following mass percentages: Co powder 28.0%, Cr powder 19.0%, Mo powder 7.0%, Nb powder 1.5%, Cu powder 1.0%, W powder 1.5%, B powder 0.6% , La powder 0.4%, the rest is Ni powder, wherein, the sum of the mass percentages of all the above components is 100%.

[0077] Step 2: Dry the medicinal powder, place the medicinal powder in a vacuum heating furnace to heat, the heating temperature is 260°C, and the holding time is 1h. to remove moisture from the powder.

[0078] Step 3: Mix the medicinal powder, place the dried medicinal powder in a powder mixer for thorough mixing, and the mixing time is 1 hour.

[0079] Step 4: Fill the powder, choose Inconel 625 as the sheath of the flux-cored wire, use alcohol to remove the grease on the surface of the raw material of the sheath, and bend the sheath into a U shape by a flux-cored wire forming machine, fill the mixed medicine powder into the sheath, and Close the ...

Embodiment 2

[0086] Step 1: Weigh the powder, and weigh the powder according to the following mass percentages: Co powder 32.0%, Cr powder 23.0%, Mo powder 9.0%, Nb powder 3.5%, Cu powder 1.5%, W powder 3.5%, B powder 1.0% , La powder 0.6%, and the rest is Ni powder, wherein the sum of the mass percentages of all the above components is 100%.

[0087] Step 2: Dry the medicinal powder, place the medicinal powder in a vacuum heating furnace to heat, the heating temperature is 280°C, and the holding time is 2h. to remove moisture from the powder.

[0088] Step 3: Mix the medicinal powder, place the dried medicinal powder in a powder mixer for full mixing, and the mixing time is 2 hours.

[0089] Step 4: Fill the powder, choose Inconel 625 as the sheath of the flux-cored wire, use alcohol to remove the grease on the surface of the raw material of the sheath, and bend the sheath into a U shape by a flux-cored wire forming machine, fill the mixed medicine powder into the sheath, and Close the ...

Embodiment 3

[0096] Step 1: Weigh the powder, and weigh the powder according to the following mass percentages: Co powder 30.0%, Cr powder 21.0%, Mo powder 8.0%, Nb powder 2.5%, Cu powder 1.3%, W powder 2.5%, B powder 0.8% , La powder 0.5%, and the rest is Ni powder, wherein the sum of the mass percentages of all the above components is 100%.

[0097] Step 2: Dry the medicinal powder, place the medicinal powder in a vacuum heating furnace to heat, the heating temperature is 270°C, and the holding time is 1.5h. to remove moisture from the powder.

[0098] Step 3: Mix the medicinal powder, place the dried medicinal powder in a powder mixer for thorough mixing, and the mixing time is 1.5 hours.

[0099] Step 4: Fill the powder, choose Inconel 625 as the sheath of the flux-cored wire, use alcohol to remove the grease on the surface of the raw material of the sheath, and bend the sheath into a U shape by a flux-cored wire forming machine, fill the mixed medicine powder into the sheath, and Cl...

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Abstract

The invention provides a nickel-based welding wire, a manufacturing method of the nickel-based welding wire and a welding process of the nickel-based welding wire, relates to the technical field of welding materials, and aims to solve the problem of poor welding effect of a heat transfer tube made of an Incoloy800H material. The nickel-based welding wire comprises an outer skin and a flux core filled in the outer skin. The outer skin is an Inconel 625 belt, and the flux core comprises, by mass, 28.0%-32.0% of Co, 19.0%-23.0% of Cr, 7.0%-9.0% of Mo, 1.5%-3.5% of Nb, 1.0%-1.5% of Cu, 1.5%-3.5% of W, 0.6%-1.0% of B, 0.4%-0.6% of La and the balance Ni. According to the nickel-based welding wire provided by the invention, a joint part can keep relatively high tensile strength and ductility under normal-temperature and high-temperature conditions.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a nickel-based welding wire, a manufacturing method of the nickel-based welding wire and a welding process of the nickel-based welding wire. Background technique [0002] High-temperature gas-cooled nuclear reactor is an advanced nuclear reactor with good safety performance and high power generation efficiency. The steam generator acts as a heat exchange device to generate steam, thereby converting nuclear energy into mechanical energy. The steam generator is an important device to isolate the primary circuit and the secondary circuit. In the actual service process, failure accidents of steam generator heat transfer tubes often occur, resulting in serious economic losses and endangering social security. High-temperature helium gas circulates in the heat transfer tube, and part of the helium gas carries radioactive substances. Therefore, ensuring the safety and stabil...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3033B23K35/40Y02E30/00
Inventor 杨二娟米紫昊王艳松王博杨兰韩天鹏刘福广李勇刘刚黎俊良孙睿
Owner XIAN THERMAL POWER RES INST CO LTD
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