CN102267035A - Method for carrying out weld repair on cast aluminium alloy cylinder covers of automobile engines - Google Patents
Method for carrying out weld repair on cast aluminium alloy cylinder covers of automobile engines Download PDFInfo
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- CN102267035A CN102267035A CN2011102007251A CN201110200725A CN102267035A CN 102267035 A CN102267035 A CN 102267035A CN 2011102007251 A CN2011102007251 A CN 2011102007251A CN 201110200725 A CN201110200725 A CN 201110200725A CN 102267035 A CN102267035 A CN 102267035A
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Abstract
The invention relates to a weld repair technology and particularly relates to a method for carrying out weld repair on cast aluminium alloy cylinder covers of automobile engines. According to the invention, the problem that when the surfaces of cast aluminium alloy cylinder covers of the existing automobile engines have air holes, the weld repair only can be performed on shallow holes, and the weld repair effect is not good. The method provided by the invention comprises the following steps: cleaning a surface to be subjected to weld repair and a special aluminum alloy welding rod by using acetone and alcohol, and carrying out weld repair on air holes through argon shielded welding; when half depth of air holes are subjected to weld repair, striking the weld repair surface by using a hammer with an arc surface, so that welding fluxes are filled with air holes; and carrying out weld repair on the weld repair surface again, when the surface to be subjected to weld repair is 2 mm higher than the that of a workpiece, striking the weld repair surface by using the hammer with an arc surface, so that the weld repair surface is even with the surface of the workpiece. The method provided by the invention is simple in operation, and can be widely applied to the cast aluminium alloy cylinder covers of all automobile engines.
Description
Technical field
The present invention relates to a kind of soldering technology, be specially a kind of repair method of automobile engine Birmasil cylinder cover.
Background technology
At present, automobile engine Birmasil cylinder cover when casting surface pore occurs through regular meeting, and existing processing method is to melt down or carry out soldering, and its repair welding rate is more than 15%.Soldering is the mode that adopts the argon shield weldering, but this soldering mode can only be carried out soldering less than D10, the degree of depth less than the shallow bore hole of 2mm to the aperture; And the effect of soldering is bad, and interior tissue is easy to generate the pin hole that internal diameter is little and density is bigger, and success rate can only reach about 70%.
Summary of the invention
The present invention can only provide a kind of repair method of automobile engine Birmasil cylinder cover in order to solve at shallow bore hole and the bad problem of welding effect when existing automobile engine Birmasil cylinder head surface pore occurs and carries out soldering.
The present invention adopts following technical scheme to realize: a kind of repair method of automobile engine Birmasil cylinder cover comprises the steps:
(1) it is clean with acetone or alcohol wash to carry out lip-deep greasy dirt, booty and the special-purpose aluminium alloy electrode of soldering, with the argon shield weldering pore is carried out soldering;
(2) in soldering when half degree of depth of pore, with the hammer of being with cambered surface soldering surface (the soldering surface is meant the solder surface that is positioned at pore) beaten and to make scolder be full of pore, reach the uniform purpose of interior tissue;
(3) carry out soldering again, treating when the soldering surface exceeds surface of the work 2mm that hammer with the band cambered surface beats the soldering surface makes the soldering surface equal with surface of the work, thereby reaches interior tissue evenly and eliminate the purpose of the less and pin hole that density is bigger of interior tissue generation.
The dynamics of beaing of described hammer is 16.1-26.8Kg; The number of times that beats of described hammer is 15-25 time.The weight of described hammer is 1.5-2.5Kg.
The present invention is simple to operate, and pore that produces in the time of can casting automobile engine Birmasil cylinder cover or the fabrication hole of reserving for the solution technological problems carry out effective shutoff, the inner pin hole that produces when preventing soldering simultaneously; Not only can carry out soldering less than D10, the degree of depth less than the shallow bore hole of 2mm to the aperture, and also can carry out soldering greater than D10, the degree of depth greater than the deep hole of 2mm for the aperture, success rate can reach 100%, has improved the effective rate of utilization of product; Solved when existing automobile engine Birmasil cylinder head surface pore occurs and carries out soldering and can only can be widely used in all automobile engine Birmasil cylinder covers at shallow bore hole and the bad problem of welding effect.
The specific embodiment
Embodiment 1:
A kind of repair method of automobile engine Birmasil cylinder cover comprises the steps:
(1) it is clean with acetone or alcohol wash to carry out lip-deep greasy dirt, booty and the special-purpose aluminium alloy electrode of soldering, with the argon shield weldering pore is carried out soldering; The soldering electric current is adjusted in 120A, and the welding rod external diameter adopts 3mm, and tungsten level external diameter adopts 4mm, and ceramic mouth oral area internal diameter adopts 12mm;
When (2) treating that half degree of depth of pore is arrived in soldering, be 1.5Kg and be with the hammer of cambered surface that the soldering surface is beaten with weight, the dynamics of beaing of hammer is 16.1Kg, and the number of times that beats of hammer is 15 times, reaches the uniform purpose of interior tissue thereby make scolder be full of pore;
(3) carry out soldering again, treat when the soldering surface exceeds surface of the work 2mm with weight to be that the hammer of 1.5Kg and band cambered surface beats the soldering surface, the dynamics of beaing of hammer is 16.1Kg, and the number of times that beats of hammer is 15 times; Make soldering surface equal, thereby reach interior tissue evenly and eliminate the purpose of the less and pin hole that density is bigger of interior tissue generation with surface of the work.
Embodiment 2:
A kind of repair method of automobile engine Birmasil cylinder cover comprises the steps:
(1) it is clean with acetone or alcohol wash to carry out lip-deep greasy dirt, booty and the special-purpose aluminium alloy electrode of soldering, with the argon shield weldering pore is carried out soldering;
When (2) treating that half degree of depth of pore is arrived in soldering, be 2.5Kg and be with the hammer of cambered surface that the soldering surface is beaten that the dynamics of beaing of hammer is 26.8Kg with weight, the number of times that beats of hammer is 25 times, thereby make scolder be full of pore, reach the uniform purpose of interior tissue;
(3) carry out soldering again, treat when the soldering surface exceeds surface of the work 2mm with weight to be that the hammer of 2.5Kg and band cambered surface beats the soldering surface, the dynamics of beaing of hammer is 26.8Kg, and the number of times that beats of hammer is 25 times; Make soldering surface equal, thereby reach interior tissue evenly and eliminate the purpose of the less and pin hole that density is bigger of interior tissue generation with surface of the work.
Embodiment 3:
A kind of repair method of automobile engine Birmasil cylinder cover comprises the steps:
(1) it is clean with acetone or alcohol wash to carry out lip-deep greasy dirt, booty and the special-purpose aluminium alloy electrode of soldering, with the argon shield weldering pore is carried out soldering;
When (2) treating that half degree of depth of pore is arrived in soldering, be 2Kg and be with the hammer of cambered surface that the soldering surface is beaten that the dynamics of beaing of hammer is 21.5Kg with weight, the number of times that beats of hammer is 20 times, reaches the uniform purpose of interior tissue thereby make scolder be full of pore;
(3) carry out soldering again, treat when the soldering surface exceeds surface of the work 2mm with weight to be that the hammer of 2Kg and band cambered surface beats the soldering surface, the dynamics of beaing of hammer is 21.5Kg, and the number of times that beats of hammer is 20 times; Make soldering surface equal, thereby reach interior tissue evenly and eliminate the purpose of the less and pin hole that density is bigger of interior tissue generation with surface of the work.
Claims (3)
1. the repair method of an automobile engine Birmasil cylinder cover is characterized in that may further comprise the steps:
(1) surface and the dedicated aluminium alloy welding rod that will carry out soldering cleans up, and with the argon shield weldering pore carried out soldering;
When (2) treating that half degree of depth of pore is arrived in soldering, the soldering surface is beaten make scolder be full of pore with the hammer of band cambered surface;
(3) carry out soldering again, treat when the soldering surface exceeds surface of the work 2mm that hammer with the band cambered surface beats the soldering surface to make the soldering surface equal with surface of the work.
2. the repair method of a kind of automobile engine Birmasil cylinder cover according to claim 1 is characterized in that: the dynamics of beaing of described hammer is 16.1-26.8Kg; The number of times that beats of described hammer is 15-25 time.
3. the repair method of a kind of automobile engine Birmasil cylinder cover according to claim 1 and 2 is characterized in that: the weight of described hammer is 1.5-2.5Kg.
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CN2011102007251A CN102267035A (en) | 2011-07-18 | 2011-07-18 | Method for carrying out weld repair on cast aluminium alloy cylinder covers of automobile engines |
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CN2011102007251A CN102267035A (en) | 2011-07-18 | 2011-07-18 | Method for carrying out weld repair on cast aluminium alloy cylinder covers of automobile engines |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581576A (en) * | 2012-03-22 | 2012-07-18 | 沈阳飞机工业(集团)有限公司 | Processing method of surface of large-scale hollow ball casting |
CN105312743A (en) * | 2015-10-30 | 2016-02-10 | 长治清华机械厂 | On-site repair welding method for 5A06 aluminum barrel finished product welding joint stress corrosion crack |
CN106181248A (en) * | 2016-07-31 | 2016-12-07 | 上海车功坊汽车服务有限公司 | A kind of aluminium alloy car sheet metal component remanufactures technique |
CN107160005A (en) * | 2017-07-09 | 2017-09-15 | 宝钢集团新疆八钢铁有限公司 | Pulse blow-out method heats the welding procedure of ultra-thin aluminum casting |
CN109982806A (en) * | 2016-09-22 | 2019-07-05 | 尼玛克股份有限公司 | Method and engine cylinder body of the production for the casting engine cylinder body of internal combustion engine |
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CN1030040A (en) * | 1988-04-05 | 1989-01-04 | 重庆大学 | New method of amending surface defects of castings |
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2011
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CN1030040A (en) * | 1988-04-05 | 1989-01-04 | 重庆大学 | New method of amending surface defects of castings |
CN1089895A (en) * | 1993-01-19 | 1994-07-27 | 中国人民解放军运输工程学院 | The surface-defect repairing method of white cast iron roller |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581576A (en) * | 2012-03-22 | 2012-07-18 | 沈阳飞机工业(集团)有限公司 | Processing method of surface of large-scale hollow ball casting |
CN105312743A (en) * | 2015-10-30 | 2016-02-10 | 长治清华机械厂 | On-site repair welding method for 5A06 aluminum barrel finished product welding joint stress corrosion crack |
CN106181248A (en) * | 2016-07-31 | 2016-12-07 | 上海车功坊汽车服务有限公司 | A kind of aluminium alloy car sheet metal component remanufactures technique |
CN106181248B (en) * | 2016-07-31 | 2018-05-22 | 上海车功坊智能科技股份有限公司 | A kind of aluminium alloy car sheet metal component remanufactures technique |
CN109982806A (en) * | 2016-09-22 | 2019-07-05 | 尼玛克股份有限公司 | Method and engine cylinder body of the production for the casting engine cylinder body of internal combustion engine |
CN107160005A (en) * | 2017-07-09 | 2017-09-15 | 宝钢集团新疆八钢铁有限公司 | Pulse blow-out method heats the welding procedure of ultra-thin aluminum casting |
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Application publication date: 20111207 |