CN104722948B - A kind of preparation process for the solder quickly repaired suitable for cold punching die and insert - Google Patents
A kind of preparation process for the solder quickly repaired suitable for cold punching die and insert Download PDFInfo
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- CN104722948B CN104722948B CN201310713810.7A CN201310713810A CN104722948B CN 104722948 B CN104722948 B CN 104722948B CN 201310713810 A CN201310713810 A CN 201310713810A CN 104722948 B CN104722948 B CN 104722948B
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- solder
- insert
- punching die
- cold punching
- copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The present invention provides a kind of simple and effective solder and its preparation process for the quick reparation of cold punching die and insert, the weight percent group of solder becomes：Aluminium 15%~20%, chromium 1%~5%, manganese 1%~5%, iron 1%~3%, surplus are copper and inevitable impurity；Solder preparation process is to go out the metallic rod blank of a diameter of 3~6mm, the solder that blank can be directly used as cold punching die after sanding and polishing and insert is quickly repaired with the mode continuous casting of horizontal casting or vertical continuous casting；Cold punching die and insert are repaired with the solder, with good fluidity when repair time is short, postwelding is not easy to produce defect, welding, be unlikely to deform and crack and prevent workpiece from abrading or the advantages that pull, it is repaired after cold punching die and insert access times can reach 30,000 times or more.
Description
Technical field
The invention belongs to metal material processing technical fields, provide one kind and are quickly repaiied suitable for cold punching die and insert
Multiple solder and preparation process.
Background technology
Cold punching die and insert are mostly the special specific purpose tool being mounted on forcing press, to the plate in being placed in room
Temperature is lower to apply deformation force, so that it is deformed, to obtain definite shape, size and the product of performance.
The material overwhelming majority of currently manufactured cold punching die and insert is based on steel, common mold work component material
The type of material has：Carbon tool steel, low-alloy tool steel, high carbon and chromium or middle chromium tool steel, medium carbon alloy steel, high-speed steel, with
And hard alloy steel etc..
Pressure is applied to plate in the motion process of cold punching die and insert on forcing press, plate is made to complete separation work
Sequence (blanking, punching, notch, deburring, cutting, cut-out etc.), during processing, mold and insert will absorb impact, shake
The loads such as dynamic, friction, high pressure and stretching, bending, operating condition is complicated, phenomena such as abrasion, fatigue, fracture, deformation easily occurs, into
And it cannot be satisfied the surface quality and dimensional accuracy of part.If a set of new mold of manufacture is not only of high cost, the period is long, and
Production mould producer does not individually form a complete production network to the vulnerable part of a certain mold generally, therefore, when general burn failure is not serious
It can be resumed production using the method repaired as possible.
Common technology has in cold punching die and insert reparation at present：Arc surfacing recovery technique, thermal spraying reparation
Technology, Brush Plating recovery technique, laser melting coating recovery technique and electric spark recovery technique etc., but all there is some for these technologies
The shortcomings that being difficult to overcome and deficiency.
The input of arc surfacing recovery technique heat is big, energy is not concentrated, and heat affected area is big, and post welding distortion is big, or even cracking,
Reduce the performance of matrix and repair materials；Arc surfacing postwelding be also easy to produce bubble, stomata, slag inclusion, lack of penetration, loose, crackle,
The defects of hardness is uneven, figuration of bead is bad；It needs the reparation position to matrix to slot or beat groove before weldering, is not suitable for Bao Erjing
Close mold is repaired.
Plasma spray technology is the injection for carrying out having certain distance to mold with powder, and thermally sprayed coating has typical stratiform knot
Structure has sull between flat particle；The defects of there are hole, micro-cracks in coating in big frictional force and is drawn, pressure
It is easy to peel off under pulsating stress；So bond strength is improved frequently with the methods of remelting after spray, but for the profiled portion of part
Heating unevenness can also cause blistering to be peeled off, and the melting temperature of coating surface directly affects sprayed coating quality, and the too low coating of temperature is not
It can melt completely, in conjunction with loosely, toughness is inadequate, easy to fall off；Temperature is excessively high, and coating surface is also easy to produce bubble, edge of work part
There are shrinkage phenomenon, tissue looseness, strength reduction.
Brush Plating repairs that the degree of automation is not high, and labor intensity is big, is not suitable for batch and repairs, and to reach securely good
Coating, treatment before plating require it is high, it is also higher to technological requirement in electroplating process, otherwise easy to produce coating loosely, bubble, peeling
Phenomena such as；Electroplated layer is generally very thin, can be used for the reparation of low depth wear surface and restores roughness, is difficult to shape damaged location
It repairs.
The problems such as overlap joint and re-melt deposit welding of the mechanism of mold laser cladding repair technique and cladding band all need into
One step research, and laser melting and coating technique, because once investment is higher for it, operating cost is higher, and the application in mould repair is also located
In the starting stage.
Electric spark deposition mould repair technology is using electric spark overlaying equipment in the die surface deposited metal that need to be repaired,
Electrode material is shifted using arc discharge and is stacked into workpiece surface.But because limited by its principle can only carry out wear surface,
The micro reparation of blunt and tipping etc. is not suitable for changing mold crackle, macroshape and mass lesions is repaired.
Invention content
In order to solve the deficiency of any of the above cold punching die restorative procedure, the present invention provides a kind of simple and effective
For the solder and its preparation process of the quick reparation of cold punching die and insert.
A kind of solder quickly repaired suitable for cold punching die and insert, the solder compositions weight percent composition
For：Aluminium 15%~20%, chromium 1%~5%, manganese 1%~5%, iron 1%~3%, surplus are copper and inevitable impurity.
Preferably, the solder compositions weight percent group becomes：Aluminium 18%, chromium 2.5%, manganese 2.3%, iron 3.5%, surplus are
Copper and inevitable impurity.
Preferably, the solder compositions weight percent group becomes：Aluminium 16%, chromium 2%, manganese 4%, iron 2%, surplus is for copper and not
Evitable impurity.
Preferably, the solder compositions weight percent group becomes：Aluminium 20%, chromium 4%, manganese 2%, iron 4%, surplus is for copper and not
Evitable impurity.
The preparation process of above-mentioned a kind of solder quickly repaired suitable for cold punching die and insert, including following step
Suddenly：
1）First fine copper is put into graphite crucible, graphite crucible bottom is connected with graphite-pipe, and the effective dummy device of graphite is stifled
Firmly, the outside of graphite-pipe connects crystallizer, and the copper in crucible is heated to fusion temperature with Medium frequency induction coil（>1100℃）,
Copper liquid surface after fusing covers charcoal to ensure that copper liquid is not aoxidized；
2）The graphite crucible equipped with fusing copper liquid is added according to corresponding ratio in fine aluminium ingot, meanwhile, chromium, manganese and iron are with aluminium
Intermediate alloy form graphite crucible is added according to corresponding ratio, molten metal temperature is reduced to after all fusings uniformly
750 DEG C~800 DEG C, keep the temperature about 10 minutes；
3）Start dummy device, the metallic rod base of a diameter of 3~6mm is gone out with the mode continuous casting of horizontal casting or vertical continuous casting
Material, the solder that blank can be directly used as cold punching die after sanding and polishing and insert is quickly repaired.
Compared to the prior art possessed advantageous effect is the present invention：
（1）For the cold punching die repaired of needs and insert, after cleaning, being preheating to 200 DEG C~300 DEG C can be into
Row argon arc welding reparation, postwelding is without heat treatment, therefore repair time is short；
（2）Since solder does not have the defects of outer layer coating, postwelding is not likely to produce bubble, stomata, slag inclusion；
（3）Close to eutectic composition, good fluidity when welding is easy to repair mold defect, the addition of iron and chromium solder compositions
It can not only crystal grain thinning, moreover it is possible to ensure that good binding performance when solder is welded with cold punching die and insert, the addition of manganese are anti-
Stop welding deformation and tearing tendency, improves the wearability of cold punching die and insert；
（4）Since the main component of solder is copper, hardness is relatively small, therefore the mold of postwelding in process of production will not
Scratch is generated to the workpiece of punching press or is pulled, improves the surface quality of product, it is repaired after cold punching die and insert make
It can reach 30,000 times or more with number.
Specific implementation mode
Embodiment one：
The reparation of the CrWMn mold materials of drawing sheet metal and copper alloy.
Become using the weight percent group of solder：Aluminium 16%, chromium 2%, manganese 4%, iron 2%, surplus be copper and inevitably it is miscellaneous
Matter.
First fine copper is put into graphite crucible, graphite crucible bottom is connected with graphite-pipe, and the effective dummy device of graphite is blocked,
The outside of graphite-pipe connects crystallizer, and the copper in crucible is heated to fusion temperature with Medium frequency induction coil（>1100℃）, fusing
Copper liquid surface afterwards covers charcoal to ensure that copper liquid is not aoxidized；
The graphite crucible equipped with fusing copper liquid is added according to corresponding ratio in fine aluminium ingot, meanwhile, chromium, manganese and iron are with aluminium
Graphite crucible is added according to corresponding ratio in intermediate alloy form, and molten metal temperature is reduced to 750 after all fusings uniformly
DEG C, keep the temperature about 10 minutes；
Start dummy device, the metallic rod blank of a diameter of 4mm is gone out with horizontal casting mode continuous casting, blank is through sanding and polishing
It can be directly used as cold punching die afterwards and solder that insert is quickly repaired.200 DEG C are preheating to when repairing mould can carry out argon
Arc-welding reparation, for postwelding without heat treatment, solder and mold binding performance are good, and welding deformation and cracking, repairing rear mold can
It uses 30,000 times or more.
Embodiment two：
The reparation of Cr12MoV car panels mold and insert material, car panel mold section is larger, complex-shaped, warp
By greater impact load, it is often necessary to repair.
Become using the weight percent group of solder：Aluminium 20%, chromium 4%, manganese 2%, iron 4%, surplus be copper and inevitably it is miscellaneous
Matter.
First fine copper is put into graphite crucible, graphite crucible bottom is connected with graphite-pipe, and the effective dummy device of graphite is blocked,
The outside of graphite-pipe connects crystallizer, and the copper in crucible is heated to fusion temperature with Medium frequency induction coil（>1100℃）, fusing
Copper liquid surface afterwards covers charcoal to ensure that copper liquid is not aoxidized；
The graphite crucible equipped with fusing copper liquid is added according to corresponding ratio in fine aluminium ingot, meanwhile, chromium, manganese and iron are with aluminium
Graphite crucible is added according to corresponding ratio in intermediate alloy form, and molten metal temperature is reduced to 800 after all fusings uniformly
DEG C, keep the temperature about 10 minutes；
Start dummy device, the metallic rod blank of a diameter of 5mm is gone out with the mode continuous casting of vertical continuous casting, blank is thrown through polishing
Cold punching die can be directly used as after light and solder that insert is quickly repaired.240 DEG C are preheating to when repairing mould to carry out
Argon arc welding reparation, for postwelding without heat treatment, solder and mold binding performance are good, and welding deformation and cracking repair rear mold
It can be used 30,000 times or more.
Embodiment three：
The reparation of silicon steel sheet punch die Cr12W mold materials.
Preferably, the solder compositions weight percent group becomes：Aluminium 18%, chromium 2.5%, manganese 2.3%, iron 3.5%, surplus are
Copper and inevitable impurity.
First fine copper is put into graphite crucible, graphite crucible bottom is connected with graphite-pipe, and the effective dummy device of graphite is blocked,
The outside of graphite-pipe connects crystallizer, and the copper in crucible is heated to fusion temperature with Medium frequency induction coil（>1100℃）, fusing
Copper liquid surface afterwards covers charcoal to ensure that copper liquid is not aoxidized；
The graphite crucible equipped with fusing copper liquid is added according to corresponding ratio in fine aluminium ingot, meanwhile, chromium, manganese and iron are with aluminium
Graphite crucible is added according to corresponding ratio in intermediate alloy form, and molten metal temperature is reduced to 775 after all fusings uniformly
DEG C, keep the temperature about 10 minutes；
Start dummy device, the metallic rod blank of a diameter of mm is gone out with horizontal casting mode continuous casting, blank is through sanding and polishing
It can be directly used as cold punching die afterwards and solder that insert is quickly repaired.260 DEG C are preheating to when repairing mould can carry out argon
Arc-welding reparation, for postwelding without heat treatment, solder and mold binding performance are good, and welding deformation and cracking, repairing rear mold can
It uses 30,000 times or more.
Claims (1)
1. a kind of preparation process for the solder quickly repaired suitable for cold punching die and insert, the solder compositions weight percent
Become than group：Aluminium 15%~20%, chromium 1%~5%, manganese 1%~5%, iron 1%~3%, surplus be copper and inevitably it is miscellaneous
Matter；
It is characterized in that, specific step of preparation process：
1) first fine copper is put into graphite crucible, graphite crucible bottom is connected with graphite-pipe, and the effective dummy device of graphite is blocked, stone
The outside of black pipe connects crystallizer, the copper in crucible is heated to fusion temperature with Medium frequency induction coil, the copper liquid table after fusing
Face covers charcoal to ensure that copper liquid is not aoxidized；
2) graphite crucible equipped with fusing copper liquid is added according to corresponding ratio in fine aluminium ingot, meanwhile, chromium, manganese and iron are in aluminium
Between alloy form graphite crucible is added according to corresponding ratio, molten metal temperature is reduced to 750 DEG C after all fusings uniformly
~800 DEG C, keep the temperature 10 minutes；
3) start dummy device, the metallic rod blank of a diameter of 3~6mm gone out with the mode continuous casting of horizontal casting or vertical continuous casting,
The solder that blank can be directly used as cold punching die after sanding and polishing and insert is quickly repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713810.7A CN104722948B (en) | 2013-12-20 | 2013-12-20 | A kind of preparation process for the solder quickly repaired suitable for cold punching die and insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713810.7A CN104722948B (en) | 2013-12-20 | 2013-12-20 | A kind of preparation process for the solder quickly repaired suitable for cold punching die and insert |
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| Publication Number | Publication Date |
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| CN104722948A CN104722948A (en) | 2015-06-24 |
| CN104722948B true CN104722948B (en) | 2018-07-27 |
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Citations (7)
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|---|---|---|---|---|
| JPS5412897B2 (en) * | 1974-02-14 | 1979-05-26 | ||
| JPS595399B2 (en) * | 1980-12-25 | 1984-02-04 | 川崎製鉄株式会社 | Martensitic stainless steel welding material |
| CN1012480B (en) * | 1989-12-29 | 1991-05-01 | 中国船舶工业总公司第七研究院第七二五研究所 | High-damping and mn. cu-based alloy for argon-arc-welding rod |
| CN1943962A (en) * | 2006-11-09 | 2007-04-11 | 北京有色金属与稀土应用研究所 | High strength aluminum alloy welding wire and its preparing method |
| CN102312179A (en) * | 2010-06-29 | 2012-01-11 | 天津市金龙焊接材料有限公司 | Thermal treatment process for high manganese aluminum bronze brazing alloy |
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| CN103056497A (en) * | 2012-05-08 | 2013-04-24 | 武汉重冶重工科技有限公司 | High-manganese aluminum bronze automatic submerged arc welding surfacing method |
-
2013
- 2013-12-20 CN CN201310713810.7A patent/CN104722948B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412897B2 (en) * | 1974-02-14 | 1979-05-26 | ||
| JPS595399B2 (en) * | 1980-12-25 | 1984-02-04 | 川崎製鉄株式会社 | Martensitic stainless steel welding material |
| CN1012480B (en) * | 1989-12-29 | 1991-05-01 | 中国船舶工业总公司第七研究院第七二五研究所 | High-damping and mn. cu-based alloy for argon-arc-welding rod |
| CN1943962A (en) * | 2006-11-09 | 2007-04-11 | 北京有色金属与稀土应用研究所 | High strength aluminum alloy welding wire and its preparing method |
| CN102312179A (en) * | 2010-06-29 | 2012-01-11 | 天津市金龙焊接材料有限公司 | Thermal treatment process for high manganese aluminum bronze brazing alloy |
| CN102240867B (en) * | 2011-05-11 | 2013-03-27 | 牡丹江双和石油机械有限公司 | High-efficiency hard alloy surfacing electrode and process flow thereof |
| CN103056497A (en) * | 2012-05-08 | 2013-04-24 | 武汉重冶重工科技有限公司 | High-manganese aluminum bronze automatic submerged arc welding surfacing method |
Non-Patent Citations (1)
| Title |
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| 堆焊用铝青铜药芯焊丝;田大标等;《煤矿机械》;19980831;第27-28页 * |
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| CN104722948A (en) | 2015-06-24 |
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Effective date of registration: 20191009 Address after: 101407 Beijing city Huairou District Yanqi Economic Development Zone Branch Hing Street No. 11 Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: 100088 Beijing city Xicheng District Xinjiekou Avenue No. 2 Patentee before: General Research Institute for Nonferrous Metals |
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Effective date of registration: 20210824 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Youyan metal composite technology Co.,Ltd. Address before: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
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