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Electric welding rod suitable for welding various steel types and application and preparation method thereof

A technology for welding electrodes and steel grades, applied in welding equipment, welding media, welding/cutting media/materials, etc., can solve problems such as equipment fracture and welding, incorrect application of welding electrodes, loss, etc., to enhance tensile strength and yield. Strength, the effect of improving tensile strength and yield strength, and good work hardening

Active Publication Date: 2019-08-20
清河县联盛焊接材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In today's society, the manufacture and maintenance of equipment in various industries are inseparable from welding, and welding is inseparable from various welding electrodes. Due to the variety of steel types and the complexity of steel quality, manufacturers have to There are many types of welding electrodes in stock to meet the welding requirements, which not only takes up a lot of money but also causes many kinds of backlogs in stock, and all of them will be scrapped over time
[0003] In the maintenance and welding of various equipment, due to the wrong judgment of the steel type to be welded and the unclear chemical composition, the wrong application of the welding rod is often used, and the wrong application of the welding rod will cause the equipment to break and open during use. Directly causing equipment damage and economic losses may also lead to dangerous accidents

Method used

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  • Electric welding rod suitable for welding various steel types and application and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Selection of welding core: based on the total weight of the welding core, calculated according to the percentage, the components of the welding core are as follows:

[0033] C:0.06%, Mn:1.3%, Si:0.35%, Cr:28%, Ni:8.0%, N:0.03% S:0.015%, P:0.010%, Ti:0.15%, Nb:0.055%, Mo : 0.9%, Cu: 0.20%, balance: Fe. Preheat the solder core at 150°C for 1 hour, then cool slowly to 30°C and take it out. The coating accounts for 45% of the total weight of the electrode.

[0034] 2) Selection of coating materials: based on the total weight of the coating, the components of the coating are as follows: rutile: 20% (60-80 mesh particle size), potassium feldspar: 16% (60 -80 mesh particle size), titanium dioxide: 3% (90-120 mesh particle size), ferrosilicon: 3% (40-80 mesh particle size), metal chromium: 7% (90-100 mesh particle size), electrolysis Manganese: 5% (110-130 mesh particle size), iron oxide: 10% (120-130 mesh particle size), mica: 5% (flaky), titanium alloy: 0.5% (100-120 me...

Embodiment 2

[0039] 1) Selection of welding core: based on the total weight of the welding core, calculated according to the percentage, the components of the welding core are as follows:

[0040] C:0.06%, Mn:1.3%, Si:0.35%, Cr:28%, Ni:8.0%, N:0.03% S:0.015%, P:0.010%, Ti:0.15%, Nb:0.055%, Mo : 0.9%, Cu: 0.20%, balance: Fe. Preheat the solder core at 150°C for 1 hour, then cool slowly to 30°C and take it out. The coating accounts for 44% of the total weight of the electrode.

[0041] 2) Selection of coating materials: based on the total weight of the coating, the components of the coating are as follows: rutile: 20% (60-80 mesh particle size), potassium feldspar: 16% (60 -80 mesh particle size), titanium dioxide: 3% (90-120 mesh particle size), ferrosilicon: 3% (40-80 mesh particle size), metal chromium: 7% (90-100 mesh particle size), electrolysis Manganese: 5% (110-130 mesh particle size), iron oxide: 10% (120-130 mesh particle size), mica: 5% (flaky), titanium alloy: 0.5% (100-120 me...

Embodiment 3

[0046] An electric welding electrode suitable for welding various steel types, including a welding core and a coating, the coating is coated on the outer wall of the welding core, and the coating accounts for 40% of the total weight of the electrode;

[0047] 1) Based on the total weight of the welding core, calculated according to the mass percentage, the welding core includes the following components:

[0048] C:0.03%, Mn:1.0%, Si:0.3%, Cr:25%, Ni:8%, N:0.03%, S:0.01%-0.02%, P:0.01%, Ti:0.1%, Nb: 0.05%, Mo: 0.8%, Cu: 0.25%, and the balance is Fe.

[0049] 2) Based on the total weight of the coating and calculated by mass percentage, the coating includes the following components: rutile: 20%, potassium feldspar: 16%, titanium dioxide: 1%, ferrosilicon: 1.0%, Metal chromium: 5%, electrolytic manganese: 1%, iron oxide: 3.5%, mica: 5%, titanium alloy: 0.5%, iron oxide yellow: 3%, reduced iron powder: 2%, rare earth silicon: 0.5%, firefly Stone: 10%, marble 11%. The drug skin ...

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Abstract

The invention provides an electric welding rod suitable for welding various steel types and application and preparation method of the electric welding rod suitable for welding various steel types andrelates to the electric welding rod suitable for welding various steel types. The electric welding rod comprises a welding core and a coating. The coating is applied to the outer wall of the welding core, and the coating accounts for 40-45% of the total weight of the welding rod. The invention further relates to a preparation method of the electric welding rod suitable for welding various steel types. The preparation method comprises the steps of preparation of the welding core and the coating, forming and drying. The electric welding rod is used for welding of low carbon steel, medium carbonsteel, high carbon steel, chromium molybdenum steel, heat resistant steel, spring steel, manganese steel, carbon tool steel, hot-work alloy steel, cast steel, low alloy steel, high alloy steel, austenitic stainless steel, martensitic stainless steel, ferritic stainless steel, high-speed tool steel and dissimilar steel. The electric welding rod and the application and preparation method have the beneficial effects that the application is wide, the cost is low and the welding effect is good.

Description

technical field [0001] The invention relates to the technical field of welding rods, in particular to an welding rod suitable for welding various steel types, its application and its preparation method. Background technique [0002] In today's society, the manufacture and maintenance of equipment in various industries are inseparable from welding, and welding is inseparable from various welding electrodes. Due to the variety of steel types and the complexity of steel quality, manufacturers have to There are many types of welding electrodes in stock to meet the welding requirements, which not only takes up a lot of money but also causes a backlog of many types of electrodes, which will all be scrapped over time. [0003] In the maintenance and welding of various equipment, due to the wrong judgment of the steel type to be welded and the unclear chemical composition, the wrong application of the welding rod is often used, and the wrong application of the welding rod will cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3086B23K35/40
Inventor 李奎雨
Owner 清河县联盛焊接材料有限公司
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