42 kg-level titania type carbon steel covered electrode and preparation method thereof

Abstract

The invention discloses a 42 kg-level titania type carbon steel covered electrode and a preparation method thereof. The 42 kg-level titania type carbon steel covered electrode comprises a core wire; the formula of a covered electrode coating comprises the following components in percentage by weight: 47-58% of reduced ilmenite, 0-4% of rutile, 6.5-11.5% of potassium feldspar, 3.5-6% of lime mud, 3.5-6% of illite, 2-6.3% of mica, 2-4.6% of fine mica, 0-6.3% of wollastonite, 5-7% of mid-carbon ferromanganese, 5-11.5% of marble and 1-4% of organic matters. The covered electrode can be prepared through a universal manufacturing technology of screw-type or hydraulic-type production equipment in the industry without special requirements, has excellent welding technological properties, mechanical properties and production press coating performance, and can be in AC / DC use.

Description

Technical field [0001] The invention relates to a carbon steel electrode and a preparation method thereof, in particular to a reduced ilmenite type 42 kg titanium carbon steel acid electrode and a preparation method thereof, belonging to the field of welding materials. Background technique [0002] Ordinary 42kg grade titanium carbon steel acid electrode is one of the most widely used welding materials in our country, accounting for more than 70% of manual welding electrode consumption. The electrode coating of this electrode contains a large amount of TiO 2 , Due to the reduction of TiO in ilmenite 2 The content is low, if the reduced ilmenite is completely used to obtain the TiO in the electrode coating 2 , It will inevitably affect the addition of other materials, cause the production pressure coating performance of the electrode to deteriorate, and at the same time deteriorate the welding process performance and mechanical properties of the electrode. Therefore, usually the Ti...

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Problems solved by technology

[0003] Generally, there are two types of rutile, natural rutile and artificial rutile. There are few high-grade natural rutile resources in China, and the production methods of artificial rutile include smelting and acid leaching. The energy consumption and environmental pollution cannot be underestimated. This also causes the prices of these two materials to increase year by year, which affects the production cost of the electrode and also continuously increases, which seriously affects the economic benefits of the enterprise.

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