CN1037857A - Surfacing welding alloy and surfacing welding electrode - Google Patents

Surfacing welding alloy and surfacing welding electrode Download PDF

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Publication number
CN1037857A
CN1037857A CN 88103062 CN88103062A CN1037857A CN 1037857 A CN1037857 A CN 1037857A CN 88103062 CN88103062 CN 88103062 CN 88103062 A CN88103062 A CN 88103062A CN 1037857 A CN1037857 A CN 1037857A
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CN
China
Prior art keywords
alloy
surfacing welding
welding
surfacing
manganese
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN 88103062
Other languages
Chinese (zh)
Other versions
CN1010196B (en
Inventor
方鸿生
黄云庆
唐明武
郑燕康
梁云升
陈伯蠡
来可宜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mudanjiang Welding Rod Factory
Tsinghua University
Original Assignee
Mudanjiang Welding Rod Factory
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mudanjiang Welding Rod Factory, Tsinghua University filed Critical Mudanjiang Welding Rod Factory
Priority to CN 88103062 priority Critical patent/CN1010196B/en
Publication of CN1037857A publication Critical patent/CN1037857A/en
Publication of CN1010196B publication Critical patent/CN1010196B/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053Fe as the principal constituent
    • B23K35/3073Fe as the principal constituent with Mn as next major constituent

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

This welding rod be a kind of be the surfacing welding electrode of deposited metal with manganese-boron steel bainite/martensite heterogeneous structure, deposited metal postwelding attitude hardness can reach H RC50~60, welding rod is can AC and DC dual-purpose, and processing performance is good, and it is few to splash.This welding rod can be used for engineering machinery, agricultural machine, the built-up welding reparation of abrasion pieces such as crusher.

Description

Surfacing welding alloy and surfacing welding electrode
The invention belongs to surfacing welding alloy and surfacing welding electrode.
The deposited metal that at present domestic and international hardfacing is adopted mostly is chromium-molybdenum alloy system, and chromium-manganese alloy system or high mangaenese steel system are as using heap 212, serial welding rods such as heap 207, heap 256, these alloy systems all adopt high alloy to strengthen alloy consumption height, and element such as chromium, molybdenum costs an arm and a leg, domestic resource shortage.High manganese steel surfacing electrode is the manganese content height not only, and welding technological properties is bad, and deposited metal is prone to crackle, and its application is subjected to certain restriction.
The objective of the invention is to develop few hardfacing alloy of alloy content and welding rod thereof.
Formation of the present invention is with manganese-boron steel core wire, is equipped with a small amount of alloying element of coating transition, so that deposited metal is the manganese-boron steel of bainite/martensite heterogeneous structure.
Particular content of the present invention is to adopt manganese-boron steel core wire, and neutral slag system coating based on the core wire composition, is equipped with the transition of a small amount of alloying element in the coating again, reaches the composition of deposited metal institute palpus.Core wire of the present invention adopts manganese-boron steel welding wire, its composition can be C0.36~0.7%Si0.4~2.0% Mn, 2.0~3.5% B 0.0005~0.0035%, and all the other are Fe(weight %) coating recipe is: marble 16~22 fluorite 5-10 rutile 10~20 micas 5~8 titanium dioxides 10~12 ferrotianiums 8~10 feldspars 6~8 ferromanganese 8~10 ferrosilicon 3-8 graphite 0~2.5
In order to obtain the deposited metal of different carbon content, can adjust the content of graphite in the coating.
The pulverizing of compositions of surfacing metal and granularity etc. are all identical with common process, and no particular requirement is made binding agent with water glass, squeeze medicine machine or oil press production with spiral.
Welding rod of the present invention is not because alloying element passes through the coating transition, so the weight coefficient of welding rod is identical with common structural steel electrode, can simplify extrusion process and minimizing is splashed, and owing to adopt neutral slag system coating, so can AC/DC.The deposited metal of welding rod of the present invention is manganese-boron steel, can be at the as-welded bainite/martensite heterogeneous structure that obtains, and its hardness can reach HRC=50~60, and its friction durability, other resurfacing welding materials than same rigidity were high.
The deposited metal composition of welding rod of the present invention is:
C 0.30~0.7% Si 0.4~2.0% Mn 2.0~3.5%
All the other are Fe(weight % for B 0.0005~0.0035%)
When the carbon content of deposited metal is 0.30~0.50%, weldprocedure is stable, overlay cladding flawless hardness is HRC=50~55, and surfacing hardness can reach HRC=55~60 overlay cladding surfaces and a small amount of transverse crack may occur when the carbon content of deposited metal is 0.51~0.70%.
Welding rod of the present invention also can add one or both following alloying elements, to improve the deposited metal performance and to improve its hardness in coating on aforementioned coating recipe basis.The alloying element that adds can be Ti, V, Re.
The advantage of welding rod of the present invention is to adopt manganese-boron alloy system, and alloy content is few, and by the coating transition, processing performance is not good for alloy, the as-welded hardness height of deposited metal, and flawless, wear resisting property are good.
Embodiments of the invention are as follows:
No. 1 the core wire composition is:
C 0.36~0.46% Si 0.4~2.0%
Mn 2.0~3.5% B 0.0005~0.0035
Surplus is Fe(weight %)
No. 2 the core wire composition is:
C 0.47~0.7% Si 0.4~2.0%
Mn 2.0~3.5% B 0.0005~0.0035%
Surplus is Fe(weight %)

Claims (6)

1, a kind of hardfacing welding rod is characterized in that with manganese-boron steel be core wire, is equipped with a small amount of alloying element of coating transition.
2,, it is characterized in that the core wire composition can be as the said surfacing welding electrode of claim 1:
C 0.36~0.46% Si 0.4~2.0%
Mn 2.0~3.5% B 0.0005~0.0035%
All the other are Fe(weight %)
3,, it is characterized by the core wire composition and can be as the said surfacing welding electrode of claim 1:
C 0.47~0.7% Si 0.4~2.0%
Mn 2.0~3.5% B 0.0005~0.0035%
All the other are Fo(weight %)
4, as claim 2,3 said surfacing welding electrodes is characterized in that and can add following one or both alloying elements at coating: Ti, V, Re.
5, a kind of surfacing welding alloy is characterized in that this alloy is the manganese boron steel of bainite/martensite heterogeneous structure.
6,, it is characterized in that its composition can be as the said hardfacing alloy of claim 5:
C 0.3~0.7% Si 0.4~2.0%
Mn 2.0~3.5% B 0.0005~0.0035
Surplus is Fe(weight %)
CN 88103062 1988-05-26 1988-05-26 Antiwear surfacing welding alloy and electrode Expired CN1010196B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88103062 CN1010196B (en) 1988-05-26 1988-05-26 Antiwear surfacing welding alloy and electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88103062 CN1010196B (en) 1988-05-26 1988-05-26 Antiwear surfacing welding alloy and electrode

Publications (2)

Publication Number Publication Date
CN1037857A true CN1037857A (en) 1989-12-13
CN1010196B CN1010196B (en) 1990-10-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88103062 Expired CN1010196B (en) 1988-05-26 1988-05-26 Antiwear surfacing welding alloy and electrode

Country Status (1)

Country Link
CN (1) CN1010196B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660024B (en) * 2008-08-27 2011-08-24 中冶集团建筑研究总院 Strengthening and toughening method of high-rigidity resurfacing welding alloyed deposited metal
CN106927483A (en) * 2015-12-29 2017-07-07 中国石油天然气股份有限公司 Preparation method of modified Y-type molecular sieve
CN109382146A (en) * 2017-08-11 2019-02-26 中国石油天然气股份有限公司 FCC (fluid catalytic cracking) balancing agent reviving and modifying method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660024B (en) * 2008-08-27 2011-08-24 中冶集团建筑研究总院 Strengthening and toughening method of high-rigidity resurfacing welding alloyed deposited metal
CN106927483A (en) * 2015-12-29 2017-07-07 中国石油天然气股份有限公司 Preparation method of modified Y-type molecular sieve
CN106927483B (en) * 2015-12-29 2019-09-03 中国石油天然气股份有限公司 Preparation method of modified Y-type molecular sieve
CN109382146A (en) * 2017-08-11 2019-02-26 中国石油天然气股份有限公司 FCC (fluid catalytic cracking) balancing agent reviving and modifying method

Also Published As

Publication number Publication date
CN1010196B (en) 1990-10-31

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