High-cellulose welding electrode

A technology with high cellulose and welding rods, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve problems such as poor operability, red coating of welding rods, and pores in weld seams, and achieve good pressure coating performance , good process performance, and the effect of improving the anti-porosity ability

Inactive Publication Date: 2002-08-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-cellulose type electrode to overcome the defects of the existing high-cellulose type electrode, such as poor process operability, red coating of the electrode, and pores in the weld seam, and further improve low-temperature impact toughness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The welding core material, coating formula and adhesive of high cellulose type electrode (TH J555) are as follows:

[0043] 1. Solder core: H08C, H04E

[0044] micro

Crystal

fiber

dimension

starch

pink

bamboo

pink

gold

red

stone

titanium

White

pink

water chestnut

bitter

soil

ocean

Bubble

stone

cloud

mother

iron

pink

nickel

pink

molybdenum

iron

Depend on

the carbon

Manganese

iron

rare earth

Ferrosilicon

iron

the sand

magnesium

the sand

30

1

4

12

2

3

11

3

5

4

1.5

7

2.5

8

6

[0045] 3. Adhesive: water glass

[0046] The modulus of water glass is ...

Embodiment 2

[0048] The welding core material, coating formula and adhesive of high cellulose type electrode (TH J555) are as follows:

[0049] 1. Solder core: H08C, H04E

[0050] micro

Crystal

fiber

dimension

starch

pink

bamboo

pink

gold

red

stone

titanium

White

pink

water chestnut

bitter

soil

ocean

Bubble

stone

cloud

mother

iron

pink

nickel

pink

molybdenum

iron

Depend on

the carbon

Manganese

iron

rare earth

Ferrosilicon

iron

the sand

magnesium

the sand

29

2

5

11

1

4

12

2

5

4.5

1

6

3.5

9

5

[0051] 3. Adhesive: water glass

[0052] The modulus of water glass is 2.8-3.0M, the ratio of potassium to sodium is 2:1, the concentration is 40.5 Be-43.0 Be', and the ...

Embodiment 3

[0054] The welding core material, coating formula and adhesive of high cellulose type electrode (TH J555) are as follows:

[0055] 1. Solder core: H08C, H04E

[0056] micro

Crystal

fiber

dimension

starch

pink

bamboo

pink

gold

red

stone

titanium

White

pink

water chestnut

bitter

soil

ocean

Bubble

stone

cloud

mother

iron

pink

nickel

pink

molybdenum

iron

Depend on

the carbon

Manganese

iron

dilute

soil

silicon

iron

iron

the sand

magnesium

the sand

31

3

3

10

3

2

10

4

5

3.5

1.5

8

2

10

4

[0057] 3. Adhesive: water glass

[0058] The modulus of water glass is 2.8-3.0M, the ratio of potassium to sodium is 2:1, the concentration is 40.5 Be-43.0 Be', an...

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Abstract

A high-cellulose welding electrode is disclosed, and it features that its coating contains 15 components including pyroceram, starch, bamboo powder, rutile, titanium oxide powder, etc.. The low-modulus water glass with high K/Na ratio is used as adhesive. Its advantages include high mechanical performance, no air pores in welded seam, and high low-temp. toughness.

Description

technical field [0001] The invention relates to a high-cellulose welding rod used for pipeline welding, which belongs to the technical field of welding. Background technique [0002] In recent years, the high-cellulose type electrodes researched and developed in China are E4310 (should comply with the national standard GB / T5117-1995) and E5510 (should comply with the national standard GB / T5118-1995). Poor operability, red electrode coating, pores in the weld seam and low low-temperature impact toughness, and has not yet formed mass production, so most of them rely on imports to meet domestic needs. Firstly, the cost is high, and secondly, the impact toughness of welding rods of famous foreign brands needs to be further improved. [0003] People such as Zhang Qinghui disclosed the performance index of a kind of E4310 cellulose electrode in " the research of improved E4310 cellulose electrode " (welding technology, 2001, (4): 43-44), accord with national standard GB / T5117-199...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/22B23K35/36
Inventor 王振家万鹏
Owner TSINGHUA UNIV
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