CN1050082C - Cast iron welding rod chemical coating composition - Google Patents
Cast iron welding rod chemical coating composition Download PDFInfo
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- CN1050082C CN1050082C CN96101839A CN96101839A CN1050082C CN 1050082 C CN1050082 C CN 1050082C CN 96101839 A CN96101839 A CN 96101839A CN 96101839 A CN96101839 A CN 96101839A CN 1050082 C CN1050082 C CN 1050082C
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- cast iron
- welding rod
- welding
- coating composition
- nickel
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Abstract
The present invention discloses a cast iron welding rod chemical coating composition which uses ordinary low carbon steel as a core wire and nickel as a characteristic component. The present invention solves the problems of high cost, low welding efficiency, easy crack of a welding rod chemical coating, easy falling off, etc., of a universal nickel core strong graphitization cast iron welding rod. The medical coating composition provided by the present invention is applied to a common low carbon steel core by a conventional technology, a welding rod is made, the welding rod can realize the welding of important grey cast iron, cast steel and nodular cast iron with high efficiency, the welding rod can be used for the connection welding of dissimilar steel, and the welding cost is reduced.
Description
The present invention relates to a kind of is the electrode for cast iron coating composition of core wire with the ordinary low-carbon steel.
In cold welding of cast iron, generally adopt the strong graphitization coating of nickel core electrode for cast iron both at home and abroad, this welding rod is core wire with the metallic nickel, with strong graphitization component is coating, exists to cost an arm and a leg, and the too high and easy moisture absorption of coating of cost, falls piece, so that can't weld, cause the many shortcomings of waste.And patent application document CN1062490A disclosed " special cast iron electric welding rod ", be to be the electrode for cast iron that core wire is made with H08A mild steel, greatly reduce cost than nickel core welding rod, but, also there are deficiencies such as weld bond crack resistance difference and machining property are low because nickel content is low excessively in its coating component.
The objective of the invention is to the deficiency that exists at above-mentioned prior art, the metatitanic acid type coating composition that a kind of suitable ordinary low-carbon steel is provided is core wire is in the hope of the weldability that improves electrode for cast iron and the machining property of welded junction part.
Task of the present invention is realized by following proposal.Be that electrode for cast iron coating composition proposed by the invention is by following each component (percentage by weight):
Rutile 2～18% marbles 1～20% mica 2～16%
Titanium dioxide 3～15% ilmenites 2～20% magnetic iron ores 1～24%
Reduced ilmenite 3～30% manganese 5～15%
With the nickel of feature component 48～80% and the pulverulent mixture of forming.
In the coating composition of the present invention, can determine that also the preferred content (percentage by weight) of feature component nickel is: 55～70%.
The present composition is pressed the formula rate mixed preparing, after dried the stirring, add an amount of potassium silicate aqueous solution, wet again to stir and make coating, be applied on the common low carbon steel core, baked and banked up with earth 1～2 hour through 220+10 ℃, promptly make electrode for cast iron with existing technology.
According to the present invention, the electrode for cast iron that makes of welding rod production technology is compared with existing nickel core electrode for cast iron routinely, and the employing ordinary low-carbon steel is a core wire, has reduced cost; And the nickel in the coating composition is the high-ductility material, content is suitable, can be anxious hot, acute cold, but cast iron there is lubricant nature preferably, can restrain carbon transition in weld metal, itself carbon is had very big solubility, do not generate carbide, prevented the air chill of cast iron heat affected area with carbon, therefore the hardness of deposited metal is low, compare with above-mentioned " Special Casting Iron welding rod ", have better weldability, and improved the crack resistance and the machining property of welded junction part.
With embodiment in detail the present invention is described in detail below.Percentage among the embodiment all by weight percentage.
Embodiment 1, and electrode for cast iron coating composition is in following component and ratio mixed preparing:
Nickel 50% rutile 2% titanium dioxide 5%
Ilmenite 9% reduced ilmenite 4% magnetic iron ore 3%
Marble 10% mica 7% manganese 10%
Embodiment 2, and the electrode coating composition of cast iron is in following component and ratio mixed preparing:
Nickel 77% rutile 3% titanium dioxide 3%
Ilmenite 3% reduced ilmenite 4% magnetic iron ore 1%
Marble 2% mica 2% manganese 5%
Embodiment 3, and electrode for cast iron coating composition is in following component and ratio mixed preparing:
Nickel 58% rutile 6% titanium dioxide 8%
Ilmenite 6% reduced ilmenite 3% magnetic iron ore 5%
Marble 4% mica 3% manganese 7% embodiment 4, electrode for cast iron coating composition are in following component and ratio mixed preparing: nickel 70% rutile 4% titanium dioxide 4% ilmenite 4% reduced ilmenite 5% magnetic iron ore 4% marble 1% mica 2% manganese 6%.
Claims (2)
1, a kind of is that the electrode for cast iron coating composition of core wire is by (percentage by weight) with the ordinary low-carbon steel:
Rutile 2-18% marble 1-20% mica 2-16%
Titanium dioxide 3-15% ilmenite 2-20% magnetic iron ore 1-24%
This feature component of the nickel of reduced ilmenite 3-30% manganese 5-15% each component and 48-80% and the pulverulent mixture formed.
2, by the described electrode for cast iron coating of claim 1 composition, it is characterized in that the preferred content (percentage by weight) of component nickel is: 55-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101839A CN1050082C (en) | 1996-01-29 | 1996-01-29 | Cast iron welding rod chemical coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96101839A CN1050082C (en) | 1996-01-29 | 1996-01-29 | Cast iron welding rod chemical coating composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156078A CN1156078A (en) | 1997-08-06 |
| CN1050082C true CN1050082C (en) | 2000-03-08 |
Family
ID=5117296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96101839A Expired - Fee Related CN1050082C (en) | 1996-01-29 | 1996-01-29 | Cast iron welding rod chemical coating composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050082C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862923B (en) * | 2010-06-18 | 2012-05-30 | 沈阳工业大学 | Teaching experiment welding electrode capable of reflecting defects of vent hole in welding line and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03297597A (en) * | 1990-04-17 | 1991-12-27 | Nippon Steel Weld Prod & Eng Co Ltd | Flux cored wire electrode with ni core wire inserted for welding cast iron |
| CN1062490A (en) * | 1990-12-17 | 1992-07-08 | 大连亚光特种电焊条有限公司 | Special cast iron electric welding rod |
-
1996
- 1996-01-29 CN CN96101839A patent/CN1050082C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03297597A (en) * | 1990-04-17 | 1991-12-27 | Nippon Steel Weld Prod & Eng Co Ltd | Flux cored wire electrode with ni core wire inserted for welding cast iron |
| CN1062490A (en) * | 1990-12-17 | 1992-07-08 | 大连亚光特种电焊条有限公司 | Special cast iron electric welding rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1156078A (en) | 1997-08-06 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |