Energy-saving and environment-protective welding rod

An energy-saving and environmentally friendly welding rod technology, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems that the pressure-coating property of the coating coating cannot be effectively solved, and achieve excellent welding process performance, Less toxic and side effects, stable arc effect

CN101934442AActive Publication Date: 2011-01-05淄博齐鲁焊业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-01-05

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Abstract

The invention relates to an energy-saving environment-friendly welding rod belonging to the field of welding materials. The energy-saving environment-friendly welding rod comprises a coating and a welding core. The energy-saving environment-friendly welding rod is characterized in that the coating comprises the following matters in percentage by weight: 35-50 percent of rutile, 7-12 percent of mid-carbon ferromanganese, 4-14 percent of white slime, 6-12 percent of feldspar, 5-10 percent of mica, 7-13 percent of dolomite, 7-9 percent of ilmenite, 1-3 percent of quartz, 2-4 percent of meerschaum and 9-14 percent of attapulgite powder. For selecting raw materials, the rutile is adopted instead of titanium pigment and reduced titanium, which has low energy consumption and low pollution; and the meerschaum is used instead of organic matters of wood flour, cellulose, and the like, which almost does not generate dust when being used, is environment-friendly and does not damage the health of operating staff. The invention is the carbon steel welding rod with the rutile type coating, has the advantages of excellent welding process property, stable electric arc, beautiful welding seams, low splash, little dust and dual purposes of alternating current and direct current, and can carry out all-position welding.
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Description

technical field

[0001] An energy-saving and environment-friendly welding rod belongs to the field of welding materials, and specifically relates to an energy-saving and environment-friendly high-strength welding rod, which is suitable for medium and low alloy steel, carbon steel and the like. Background technique

[0002] With the development of industrial technology, high-quality steel has been popularized in mining machinery, electric machinery, metallurgical machinery, construction machinery and other fields. In the welding process in the above-mentioned fields, the existing J422 electrode, as the leading product of each manufacturer in my country's electrode industry, though can meet the needs of the work, still has many deficiencies and defects. The reason is: J422 is an electrode with titanium-calcium coating, and its coating is mainly composed of titanium dioxide (usually expressed in the form of titanium dioxide and reduced titanium), silicate and carbonate. In addi...

Examples

Embodiment 1

[0020] Prepare 10kg of dry skin material, weigh 4.8kg of rutile, 0.7kg of medium carbon ferromanganese, 0.4kg of white clay, 0.6kg of feldspar, 0.5kg of mica, 0.7kg of dolomite, 0.8kg of ilmenite, 0.1kg of quartz and Sepiolite 0.4kg, attapulgite powder 1.0kg.

[0021] The welding core material is H08A low carbon steel.

[0022] The weighed material is pulverized and ball milled, passed through a 100-mesh sieve to make a powder with a certain particle size, and the carbon-manganese-ferroalloy powder in the material is subjected to passivation treatment. Then mix all kinds of ingredients evenly, slowly pour into water glass and wet mix evenly, and then the electrode coating coating will be prepared. Then use an electrode press coater to press-coat the prepared welding core, dry the press-coated wet electrode at 100-200°C and keep it warm for one hour, then it can be packaged and shipped.

[0023] The obtained welding rod has a smooth surface, no burr, and good appearance quali...

Embodiment 2～7

[0025]

[0026] After welding, compared with the impurity components of the deposited metal of the QILU422 rutile-coated carbon steel electrode compared with the impurity components of the ordinary J422 carbon steel electrode, each impurity component is basically smaller than that of the ordinary J422 carbon steel electrode. The comparison data are shown in Table 1. Show:

[0027] Table 1 Comparison of deposited metal composition between QILU422 rutile carbon steel electrode and ordinary J422 carbon steel electrode

[0028]

[0029] Comparing the yield strength and tensile strength of the QILU422 rutile-coated carbon steel electrode with the ordinary J422 electrode and the national standard electrode, it is found that the yield strength and tensile strength of the QILU422 rutile-coated carbon steel electrode are larger Improvement, welding process performance is more excellent, the comparison results are shown in Table 2:

[0030] Table 2 Comparison of yield strength an...