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A cellulose welding rod

A cellulose and microcrystalline cellulose technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve problems such as poor performance of cellulose electrodes, and achieve excellent welding technology and strong arc penetration. , good effect of double-sided forming

Active Publication Date: 2015-08-12
WUHAN TEMO WELDING CONSUMABLES CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor performance of the cellulose electrode used in the prior art, the present invention provides a new cellulose electrode

Method used

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  • A cellulose welding rod
  • A cellulose welding rod
  • A cellulose welding rod

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Embodiment 1

[0021] The electrode uses H08A steel core, and the components of the coating are microcrystalline cellulose, corn starch, rutile, ilmenite, magnetite, manganese carbonate, white mud, magnesite, ferromanganese and magnesium-aluminum alloy; The ratio of microcrystalline cellulose to corn starch is 1.25:1~2.1:1, and the total amount of the two (i.e. the total amount of cellulose) accounts for 36.0~37.0% of the mass percentage of the drug skin; manganese carbonate, white mud and magnesite The total amount accounts for 17.0-19.0% of the mass percentage of the drug skin.

[0022] To make welding rods, according to the ordinary acid welding rod manufacturing method, potassium sodium water glass is used as a binder, and the uniformly mixed powder is evenly pressed on the surface of the welding core to make welding rods of Φ3.2mm and Φ4.0mm.

[0023] According to the above method, and the ratio of the 7 groups of coating ingredients of No.1 to No.7 in Table 1, the welding rod was prepa...

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Abstract

The invention discloses a cellulose electrode which comprises a core wire and a coating. The coating comprises, by mass percent, 20.0-25.0% of microcrystalline cellulose, 12.0-16.0% of corn starch, 6.0-8.0% of rutile, 4.0-6.0% of ilmenite, 17.0-20.0% of magnetite, 4.0-7.0% of manganese carbonate, 4.0-8.0% of white mud, 5.0-7.0% of magnesia, 13.0-14.0% of ferromanganese, and 1.0-2.0% of magnalium. According to the cellulose electrode, advantages of the components can be played to the maximum degree, the electrode can be used for direct currents and alternating currents, the vertical down welding process is good, an electric arc is strong in penetrating power, the coating at the tail of the electrode is strong in carbonation resistant capacity and good in two-sided forming of welding by one side.

Description

technical field [0001] The invention relates to a cellulose welding rod. Background technique [0002] Cellulose electrode is a special electrode for vertical welding or all-position welding of pipelines. In the welding construction of oil and gas pipelines, a large number of cellulose electrodes are used. This type of electrode has many advantages. Compared with the traditional bottom-up welding method, its advantages are as follows: (1) The welding speed is fast and the production efficiency is high, which is about 50% higher than that of the top-down welding method; (2) The welding quality is good, due to its arc Strong blowing force, strong penetrating power, one-sided welding and double-sided forming, beautiful forming on the back of the weld bead, strong wind resistance, suitable for field operations. [0003] Since the 1960s, industrially developed countries such as the United States and Japan have successfully developed cellulose all-position vertical downward elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/24
Inventor 程宁蔡俊程伟平刘东
Owner WUHAN TEMO WELDING CONSUMABLES CO LTD
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