CN1039105C - Oxygeng welding rod for cast aluminium - Google Patents
Oxygeng welding rod for cast aluminium Download PDFInfo
- Publication number
- CN1039105C CN1039105C CN 93120111 CN93120111A CN1039105C CN 1039105 C CN1039105 C CN 1039105C CN 93120111 CN93120111 CN 93120111 CN 93120111 A CN93120111 A CN 93120111A CN 1039105 C CN1039105 C CN 1039105C
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- welding
- aluminium
- welding rod
- manganese
- rod
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- Expired - Fee Related
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- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention discloses an oxygen welding rod for casting aluminium, which is formed by the way that non-ferrous metal, such as aluminium, silicon, ferrum, copper, manganese, manganese, nickel, etc. are cast, and no coating exist at the surface. When the oxygen welding rod for casting aluminium is used, welding powder is not added. The welding rod can directly weld cast aluminium castings with the thickness of less than 100MM, and the welding rod can also weld aluminium alloy pieces and aluminium thin plates. During welding, welding agents and welding flux are not needed, and welding seams are flat and smooth. Various indexes meet national standards.
Description
The present invention relates to a kind of cast aluminium oxy-acetylene welding welding rod, is a kind of oxy-acetylene welding welding rod that can weld aluminum casting.
The welding of the arc welding of aluminium and oxygen welding needs to make scaling powder with welding powder in the existing technology.These methods generally can only the aluminum component of throat thickness below 1.5cm.At Chinese patent CN1046110A " the low melting point aluminium soldering connects material " but in a kind of welding rod of the sheet-type of welding aluminum alloy at low temperatures weldment is disclosed, but defectives such as the pore that this welding rod can only the soldering aluminium casting occurs, crackle, aluminium casting that can not welding breaking.In the existing technology, thickness is that the above weldment of 1.5cm adopts the high argon arc welding of equipment investment, also needs welding powder and makes scaling powder, or use the aluminium alloy electrode that coating is arranged.In the said method,, therefore after welding, need scarfing cinder owing to must use coating and welding powder.Because the effect of argon arc and electric arc easily produces splashes and floating phenomenon, thereby easily produce the rosin joint phenomenon during welding.Will find out the crack at postwelding once polishing, promptly welding rod does not have good the combination with mother metal.When special aluminium of formulating of China and aluminium alloy welding in the used welding wire, the percentage by weight of each component of GB1058-89 (SALMg-1) welding wire is: silicon 0.25%, copper 0.10%, manganese 0.5-1.0%, iron 0.4%, magnesium 2.4-3.0%, chromium 0.05-0.2%, titanium 0.05--0.2%, surplus is an aluminium.Except that aluminium, other alloying element accounts between the 3.75-5.15% of total component.Especially the content of copper silicon is all less than 0.25%.This welding rod also can only aluminium and the Al-alloy parts of throat thickness below 1.5cm, can not weld the cast alumin(i)um foundry goods, and also must use scaling powder when welding.
The objective of the invention is at above-mentioned deficiency, develop cast alumin(i)um foundry goods and the cast aluminium oxy-acetylene of the Al-alloy parts welding of a kind of directly throat thickness more than 1.5cm, and this welding rod do not need in use with welding powder or solder flux, the welding rod skin is not provided with the coating parcel yet.
The solution of the present invention is as follows: the component of this welding rod comprises silicon, aluminium, copper, manganese, iron, magnesium alloy element, is characterized in also containing the nickel alloy element component in this welding rod, and the percentage by weight of this each component of welding rod is:
Silicon 8-13% magnesium 0.5-1.5%
Nickel 0.7-0.9% iron 0.4-0.7%
Copper 1-1.5% aluminium 83-88%
Manganese 0.02-0.05%
With each compositions in weight percentage weigh the fusing after, direct pouring moulding in mould.
Welding rod appearance of the present invention does not have the coating parcel, does not need welding powder, solder flux just weldment firmly can be welded when welding yet.The ratio of silicon, copper all is far longer than GB1058-89 (SALMG-1) welding wire in component of the present invention.The percentage by weight summation of welding rod of the present invention other alloying element except that aluminium is between 10.62-17.65%.Also from far away greater than GB1058-89 (SALMG-1) welding wire.The content of magnesium is far smaller than GB1058-89 (SALMg-1) welding wire again.The increase of silicon, copper ratio has improved the intensity of welding rod and hardness and aluminum casting and has adapted, and the content of magnesium reduces the certain toughness that has that makes welding rod again.Therefore when this welding rod is used in the welding of cast alumin(i)um aluminum casting, can firm smooth welding, and smooth welded seam is smooth.The thickness that can weld the cast alumin(i)um foundry goods is in 100mm.Every indexs such as the quality of weld seam, performance and tensile strength, yield strength, impact strength all meet national requirements.Welding rod of the present invention owing to do not use welding powder and scaling powder, when welding, do not produce splash, floating phenomenon, welding rod and mother metal be combined in molten molten state formation alloying tissue down thereby smooth welded seam, smooth firm.Be a kind of easy and simple to handle, cost is low, the new type of electrode of good economic benefits and social benefit is arranged.
Below in conjunction with embodiment the present invention is illustrated:
Embodiment 1:
Following alloying element weighed by weight percentage drops into crucible and be heated to 950 ℃ of fusings:
Silicon 9.92% aluminium 85.768%
Iron 0.67% magnesium 1.35%
Copper 1.44% nickel 0.82%
Manganese 0.032%
Pour casting (720-730 ℃) in the mould into, moulding is poured out.
Embodiment 2:
The percentage by weight of each component is:
Silicon 8.51% aluminium 87.31 8%
Iron 0.56% magnesium 1.30%
Copper 1.48% nickel 0.80%
Manganese 0.032%
Claims (1)
1. cast aluminium oxy-acetylene welding welding rod, this welding rod component comprises silicon, iron, copper, manganese, magnesium, aluminium alloy element, it is characterized in that this welding rod also contains the nickel alloy element component, the percentage by weight of this each component of welding rod is: nickel 0.7-0.9%, silicon 8-13%, copper 1-1.5%, iron 0.4-0.7%, manganese 0.02-0.05%, magnesium 0.5-1.5%, aluminium 83-88%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120111 CN1039105C (en) | 1993-12-20 | 1993-12-20 | Oxygeng welding rod for cast aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120111 CN1039105C (en) | 1993-12-20 | 1993-12-20 | Oxygeng welding rod for cast aluminium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1091344A CN1091344A (en) | 1994-08-31 |
| CN1039105C true CN1039105C (en) | 1998-07-15 |
Family
ID=4993169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120111 Expired - Fee Related CN1039105C (en) | 1993-12-20 | 1993-12-20 | Oxygeng welding rod for cast aluminium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039105C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049853C (en) * | 1996-05-02 | 2000-03-01 | 唐兴华 | Method for welding alloy cast aluminium part and used welding rod |
-
1993
- 1993-12-20 CN CN 93120111 patent/CN1039105C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1091344A (en) | 1994-08-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |