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Preparation method of nickel-based alloy welding wire

A nickel-based alloy and welding wire technology, which is applied in the field of nickel-based alloy welding wire preparation, can solve problems such as easy generation of hot cracks, adverse effects on mechanical properties of components, and poor thermal corrosion resistance of nickel-based alloys.

Active Publication Date: 2022-01-21
JIANGSU JIUZHOU NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hot corrosion resistance of nickel-based alloys is poor. In order to solve this problem, on the one hand, develop anti-corrosion coatings, and on the other hand, develop hot-corrosion-resistant alloys that can be used for a long time and have relatively high Cr content.
At present, nickel-based alloys with a Cr content of more than 30% have become the direction of research and development, but high-Cr content nickel-based alloys are prone to hot crack defects during welding, which will adversely affect the mechanical properties of components. Nickel-based alloy welding wire with good corrosion performance, less cracks during welding, and good processability are technical problems that need to be solved at present.

Method used

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  • Preparation method of nickel-based alloy welding wire

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Effect test

Embodiment 1

[0032] This embodiment provides a kind of auxiliary agent, is made by the following steps:

[0033] Step A1, prepare the following raw materials in parts by weight: 2.8 parts of phosphoric acid, 20 parts of rosin derivatives, 10 parts of diethylene glycol monobutyl ether, and 50 parts of polyethylene glycol;

[0034] Step A2: Put the raw materials in the above formula in a reaction kettle, heat up to 100°C for 10 minutes, then cool down to 65°C, stir and mix for 30 minutes, then cool down to room temperature, and grind 3 times to obtain additives.

[0035] Wherein, rosin derivative is made by following steps:

[0036] Step S1. Add 500g of masson pine rosin to the four-necked flask, and start to raise the temperature while introducing nitrogen. When the temperature rises to 180°C, add 131g of maleic anhydride in 5 times in equal amounts, with an interval of 5 minutes between each addition. After the addition, keep warm React for 4 hours, transfer to turpentine at 45°C while it...

Embodiment 2

[0041] This embodiment provides a kind of auxiliary agent, is made by the following steps:

[0042] Step A1, prepare the following raw materials in parts by weight: 3.0 parts of phosphoric acid, 23 parts of rosin derivatives, 12 parts of diethylene glycol monobutyl ether, and 55 parts of polyethylene glycol;

[0043] Step A2. Put the raw materials in the above formula in a reaction kettle, heat up to 100°C for 15 minutes, then cool down to 68°C, stir and mix for 32 minutes, then cool down to room temperature, and grind 4 times to obtain the additive.

[0044] Wherein, rosin derivative is made by following steps:

[0045] Step S1. Add 500g of masson pine rosin to the four-necked flask, and start to raise the temperature while introducing nitrogen. When the temperature rises to 180°C, add 132g of maleic anhydride in equal amounts in 5 times, with an interval of 5 minutes between each addition. After the addition, keep warm React for 4 hours, transfer it to turpentine oil at 48°...

Embodiment 3

[0050] This embodiment provides a kind of auxiliary agent, is made by the following steps:

[0051] Step A1, prepare the following raw materials in parts by weight: 3.2 parts of phosphoric acid, 25 parts of rosin derivatives, 18 parts of diethylene glycol monobutyl ether, and 60 parts of polyethylene glycol;

[0052] Step A2. Put the raw materials in the above formula in a reaction kettle, heat up to 100°C for 10-20 minutes, then cool down to 70°C, stir and mix for 35 minutes, then cool down to room temperature, and grind 5 times to obtain the auxiliary agent.

[0053] Wherein, rosin derivative is made by following steps:

[0054] Step S1. Add 500g of masson pine rosin to the four-necked flask, and start to raise the temperature while introducing nitrogen. When the temperature rises to 180°C, add 136g of maleic anhydride in equal amounts in 5 times, with an interval of 5 minutes between each addition, and keep warm after the addition React for 4 hours, transfer to turpentine ...

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Abstract

The invention relates to a preparation method of a nickel-based alloy welding wire, and belongs to the technical field of welding material preparation. The preparation method comprises the following steps that 1, alloy smelting is carried out, specifically, the alloy comprises the following components of C, Si, Cr, Ti, Nb, W, Al, Fe, Mn, MO and the balance Ni; 2, ingot casting is carried out; 3, hot forging cogging is carried out, specifically, the alloy ingot is put into a heating furnace to be heated, forging is carried out, and an alloy blank is obtained; 4, hot rolling annealing is conducted, specifically, the alloy blank is hot-rolled into a disc round wire; 5, acid pickling, coping and cold drawing are conducted; 6, dehydrogenation annealing is conducted; and 7, auxiliary coating is carried out, specifically, the welding wire penetrates through a container containing auxiliaries, drying is carried out at the temperature of 18-30 DEG C, and the nickel-based alloy welding wire is obtained. According to the method, through the steps of metal raw material selection, alloy smelting, ingot casting, hot forging cogging, hot rolling annealing, acid pickling, coping, cold drawing, dehydrogenation annealing and auxiliary coating, the nickel alloy welding wire has good mechanical property, corrosion resistance and oxidation resistance.

Description

technical field [0001] The invention belongs to the technical field of welding material preparation, and in particular relates to a preparation method of nickel-based alloy welding wire. Background technique [0002] Superalloys have high high temperature strength, excellent resistance to high temperature oxidation and hot corrosion, excellent creep properties and fatigue resistance, and good structural stability, and are widely used in many fields such as aerospace, energy, chemical, and nuclear industries. [0003] Alloy materials used in the high-temperature field, because nickel-based alloy materials have good mechanical properties, corrosion resistance, and oxidation resistance, the application of nickel-based superalloys far exceeds that of iron-based and cobalt-based superalloys, and is the largest output in industrial production , The most widely used superalloy. However, nickel-based alloys have poor thermal corrosion resistance. In order to solve this problem, on ...

Claims

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Application Information

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IPC IPC(8): B23K35/40B23K35/30B23K35/362
CPCB23K35/404B23K35/304B23K35/362B23K35/3612
Inventor 刘思遥高宇祥刘跃庆马永峰杨国平田扣网
Owner JIANGSU JIUZHOU NEW MATERIAL TECH CO LTD
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