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Normalization anneal treatment resistant heat-resistant steel wire solder and use method thereof

An annealing, heat-resistant steel technology, applied in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of increasing welding material cost, production process, complex production process, etc., and achieve low cost and composition design. Simplicity, the effect of reducing material consumption and production costs

Inactive Publication Date: 2009-01-14
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-alloy high-strength matching welding consumables and complex production processes as mentioned above are required, which increases the cost of welding consumables and the production process

Method used

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  • Normalization anneal treatment resistant heat-resistant steel wire solder and use method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The coating composition of the present invention is listed in Table 5. The diameter of the welding core H08A or H08E is Φ4mm.

[0036] Table 5: Drug skin composition by weight

[0037]

Dali

stone

Fluorite

quartz

ferro-titanium

Ferrosilicon

Medium carbon ferromanganese

molybdenum

iron

High carbon chromium

iron

Soda ash

sodium

water

Glass

glass

Example 1

40

20

6.5

11

3

3

2.5

4.5

1.5

2

3

Example 2

45

19.5

7

12

5

2.5

3

6

1.0

2

0

Example 3

60

18

...

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PUM

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Abstract

The invention provides a normalized and annealed treatment resistant refractory steel electrode, comprising 40-60 portions of marble, 18-2. portions of fluorite, 5-7 portions of quartz, 11-13 portions of ferrotitanium, 3-7 portions of ferrosilicon, 1.5-3 portions of medium carbon ferromanganese, 2.5-3.5 portions of ferromolybdenum, 4.5-7.5 portions of high carbon ferrochrome and 0.5-1.5 portions of soda, and after being mixed uniformly, 16-23 portions of sodium silicate is added. The butt core H08A is extruded and formed into semi-finished product through an oil press typed electrode extruder, and the finished product is made after being dried with low temperature of 80 DEG C and high temperature of 400 DEG C. Before welding, the electrode should be dried for one hour under the temperature of 350-400 DEG C. The direct current is directly connected reversely while welding with the current of 150-180A, arc voltage of 22-28V, welding speed of 100-200mm / min and interpass temperature of 160-220 DEG C. The welding seam after being processed with heat treatment has excellent high temperature usability, which can satisfy the requirements that Rp0.2 is equal to or more than 275 MPa and Rm is equal to 450-685 MPa.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a heat-resistant steel welding rod capable of normalizing and annealing treatment and a use method thereof. Background technique [0002] 15CrMo, 15CrMoR, 14Cr1Mo, 14Cr1MoR, A387Gr11CL2, A387Gr12CL2, 1Cr0.5Mo, 1.25Cr0.5Mo and other heat-resistant steels are widely used in boiler pipes, high-pressure vessels, and petroleum refining equipment. The welding materials for manual arc welding are GB / T 5118- E5515-B2, E5516-B2, E5518-B2 electrodes in "Low Alloy Steel Electrodes" in 1995, E8015-B2, E8016-B2, E8018 in ASME / AWS A5.5 "Standards for Low Alloy Steel Electrodes for Manual Arc Welding" -B2 electrode, and other electrodes with the same weld metal alloy composition, see Table 1 for the weld metal alloy composition of the above electrodes, and see Table 2 for the annealing heat treatment temperature and mechanical properties of the weld. [0003] Table 1 Exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/36
Inventor 姚上卫吴伦发陈新
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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