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Welding material for Incone1600 alloy

A technology for welding materials and alloys, applied in welding/cutting media/materials, welding media, welding equipment, etc., can solve the problems of hidden dangers in the stability and safety of Inconel600 alloy products, unsatisfactory high-temperature mechanical properties of welds, etc. The effect of superior synergistic function, good surface morphology and mechanical properties at room temperature, and excellent corrosion resistance

Inactive Publication Date: 2014-06-04
江苏双勤民生冶化设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is found in the application that ERNiCr-3 is still insufficient as the welding material of Inconel600, and the outstanding performance is that the high-temperature mechanical properties of the weld are not ideal
This defect makes the stability and safety of Inconel600 alloy products in high-temperature application environments hidden dangers, thus limiting the application of Inconel600 alloy products in certain high-temperature environments that require mechanical properties

Method used

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  • Welding material for Incone1600 alloy
  • Welding material for Incone1600 alloy
  • Welding material for Incone1600 alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Two Inconel600 rolled plates with specifications of 450mm×75mm×20mm were selected as welding samples, and a V-shaped butt joint groove was adopted. The groove type was: the length of the blunt side was 1mm, and the groove angle was 60°. docking structure such as figure 1 shown.

[0022] The above-mentioned welding samples were welded by GTAW welding process; the welding machine model used was WSM-4000 inverter pulse argon arc welding machine; the welding material used was welding wire with a diameter of φ2.4mm, and its composition was: C 0.03% , Cr 16.8%, Fe 7.2%, Mn 0.4%, Nb 2.45%, Si 0.85%, S 0.002%, P 0.002%, Ni balance.

[0023] The connection mode between the welding machine and the welding sample is direct current connection. The welding process includes the following steps:

[0024] (1) Clean the groove surface of the sample to be welded, keep it clean and dry, then connect the groove according to the above-mentioned V-shaped butt joint method, fix the positi...

Embodiment 2

[0028] Two Inconel600 pipe sections with specifications of φ120mm (outer diameter) × 15mm (wall thickness) × 150mm (length) were selected as welding samples, and U-shaped butt joint grooves were adopted. Mouth angle 25°. The docking structure is attached figure 2 shown.

[0029] Using the same welding consumables, equipment and welding process as in Example 1, the above welding samples were welded. The connection mode between the welding machine and the welding sample is direct current connection.

[0030] The welding process includes the following steps:

[0031] (1) Clean the groove surface of the sample to be welded, keep it clean and dry, then connect the groove according to the above U-shaped butt joint method, fix the position by spot welding, and then pass argon gas for protection;

[0032] (2) Carry out bottom welding on the welding sample, the welding current is 90A, the voltage is 12V, the welding speed is about 0.8mm / s, and two layers are welded;

[0033] (3) ...

Embodiment 3

[0034] Embodiment 3 (comparison)

[0035] The welding material in Example 1 was changed to ERNiCr-3 welding wire with a diameter of φ2.4mm, and other conditions remained unchanged.

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Abstract

The invention discloses a welding material for Incone1600 alloy. The surface of a weld joint obtained by the welding material is good in appearance. The weld joint not only has the excellent corrosion resistance and the normal-temperature mechanical property, but also has the obviously-improved high-temperature mechanical property, the product quality can be greatly improved, and the product service life can be greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a welding material used for Inconel600 alloy. Background technique [0002] Inconel600 is a nickel-based alloy with the following chemical composition (mass percentage): C≤0.15%, Cr 14.0~17.0%, Fe 6.0~10.0%, Mn≤1.0%, Cu≤0.5%, Si≤0.5%, S ≤0.015%, P≤0.015%, Ni≥72.0%. The alloy has excellent high temperature corrosion resistance, oxidation resistance and cold and hot processing performance, and is widely used in titanium dioxide, chemical industry, nuclear power and other fields. [0003] The application of alloys is inseparable from welding, and the quality of welds is an important factor affecting the overall performance of metal products (such as mechanical properties and corrosion resistance). If the welding material is improperly selected or of poor quality, the weld will become the "short board" of the overall performance of the product. Complementary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3033
Inventor 李勤峰
Owner 江苏双勤民生冶化设备制造有限公司
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