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MIG welding process of Alloy59 alloy

A welding process and alloy technology, applied in the field of MIG welding process, can solve the problems of oxidation and blackening of the weld surface, slow welding speed and low efficiency, and achieve the effect of improving wettability and increasing arc energy.

Inactive Publication Date: 2019-11-12
南京胜德金属装备有限公司
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AI Technical Summary

Problems solved by technology

[0002] The butt joints of nickel-based alloys are usually completed by GTAW (argon arc welding). The GTAW method is well welded, but the welding speed is slow and the efficiency is low.
MIG welding is widely used in the surfacing of nickel-based alloys, but the effect of using it in butt welds is not ideal. meet quality requirements

Method used

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  • MIG welding process of Alloy59 alloy

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see figure 1 , the present invention provides a kind of technical scheme: the step of a kind of MIG welding process of Alloy59 alloy: step 1, welding equipment selection; select the welding power supply with pulse, welding torch drag cover, ceramic liner;

[0023] Step 2: Test plate preparation and groove processing; first use a water jet to cut two Alloy59 test plates, the test plate size is δ8*130*300mm, and then use a planer to process 30° unilateral...

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Abstract

The invention discloses an MIG welding process of an Alloy59 alloy. The MIG welding process of the Alloy59 alloy includes the following steps that firstly, a welding device is selected; secondly, testplates are prepared and grooves are machined; thirdly, a welding material is selected; fourthly, gas is prepared; fifthly, preparation before welding is made; sixthly, coupling is performed; and thetwo test plates are coupled, a 1-2 mm interval is reserved, and a ceramic backing in the first step is attached to the back side of each test plate; and seventhly, welding is performed. According to the scheme, a pulse MIG welding machine is used, Ar+30% of He mixed gas is adopted as protective gas, the electric arc energy is improved, the depth of fusion and the wettability of weld metal are improved, and therefore good forming is achieved; a pass of ceramic backing is attached to the back side of each groove, weld joint back side forming is guaranteed, and single-side welding double-side forming is achieved; and a welding gun is additionally provided with a specially made pulling cover which is filled with argon, so that a weld joint located at a high temperature is protected, and finally a silvery white weld joint is obtained.

Description

technical field [0001] The invention relates to a MIG welding process of Alloy59 alloy, in particular to the technical field of welding process. Background technique [0002] Butt joints of nickel-based alloys are usually completed by GTAW (argon arc welding) method. GTAW method has good welding shape, but the welding speed is slow and the efficiency is low. MIG welding is widely used in the surfacing of nickel-based alloys, but the effect of using it in butt welds is not ideal. Meet quality requirements. Contents of the invention [0003] The object of the present invention is to provide a kind of MIG welding process of Alloy59 alloy. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a step of MIG welding process of Alloy59 alloy: Step 1, welding equipment selection; selection of pulsed welding power supply, welding torch drag cover, ceramic liner; [0005] Step 2: Test plate preparation and groove processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/235B23K9/32B23K35/38
CPCB23K9/167B23K9/235B23K9/325B23K35/383B23K2103/08
Inventor 张军倪冉戴文佘广兵
Owner 南京胜德金属装备有限公司
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