CN1358600A - Composite metal material explosion welding technology with shape protection function - Google Patents
Composite metal material explosion welding technology with shape protection function Download PDFInfo
- Publication number
- CN1358600A CN1358600A CN02109006A CN02109006A CN1358600A CN 1358600 A CN1358600 A CN 1358600A CN 02109006 A CN02109006 A CN 02109006A CN 02109006 A CN02109006 A CN 02109006A CN 1358600 A CN1358600 A CN 1358600A
- Authority
- CN
- China
- Prior art keywords
- weldment
- welding
- explosive
- metal material
- explosive welding
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 53
- 239000007769 metal material Substances 0.000 title claims abstract description 9
- 238000004880 explosion Methods 0.000 title claims description 14
- 239000002131 composite material Substances 0.000 title claims description 5
- 238000005516 engineering process Methods 0.000 title claims description 4
- 239000002360 explosive Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 13
- 238000013461 design Methods 0.000 abstract description 2
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 17
- 229910052782 aluminium Inorganic materials 0.000 description 16
- 239000004411 aluminium Substances 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 13
- 239000000758 substrate Substances 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- -1 weight ratio is Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/02—Pressure butt welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention relates to an explosive welding technique with protecting function for weldment with fin or other shape, including design of control principle of explosive welding parameters and protection method of weldment form. It is characterized by that the weldment is placed in a protecting mould, said protecting mould is composed of rigid metal hoop and filling material, said filling material can adopt metal material, also can adopts non-metal material or adopts their mixture. Between the explosive welding equipment and ground surface an energy-absorbing basis is set for absorbing residual dynamic energy of weldment. Said invention is applicable for explosive welding radiator with various materials and high heat-conducting metal material, also is applicable for explosive welding other weldments.
Description
Technical field
The invention belongs to the explosion welding technique field, specially refer to explosion welding technique with fin or other shape protection functions.
Background technology
Along with the update of computer, the CPU heat dissipation problem becomes increasingly conspicuous at present, and the radiating efficiency of the aluminium radiator that uses can not be satisfied the demand now.The thermal diffusivity of copper is higher than aluminium, but the fine copper heatsink weight is big, and complex-shaped fin is made difficulty, cost height.Because the material of aluminium is soft, squeeze the production efficiency height of north moulding, and the fine aluminium heatsink weight is light, fee of material is low, if can realize welding to the baseplane of certain thickness copper coin and aluminium radiator, utilize the flash heat transfer performance of copper just can improve the radiating effect of radiator greatly.Had now and adopted bonding method that copper coin is sticked on radiator of the compound end of aluminum bronze on the aluminium radiator bottom surface, the radiating effect of radiator is increased, but used paste medium is nonmetallic materials, because the existence of this layer medium has reduced the heat transfer property between copper aluminium.Explosion welding technique can realize that the no medium between copper aluminium connects, and the bond strength height is arranged, and can guarantee the unseparated outstanding advantage of composite bed under conditions such as heat treatment, machined.In the explosive welding process, explosive detonation produces huge pressure, promote flying speed and the substrate inclined impact of compound plate with the hundreds of meter per second, after realizing welding, because weldment also has remaining kinetic energy, when it contacts with the basis, can be subjected to very big impact, squeezing action, these factors all cause weldment distortion in various degree.For flat work, can the method by machining realize shaping, if substrate is to have the workpiece (as shown in Figure 1) that fin etc. has the complicated shape feature, be difficult to restore to the original state with of the distortion of conventional mechanical method for processing with weldment.The present invention has designed a kind of special explosion welding technique, makes it can keep the global shape of weldment constant after realizing welding.
Summary of the invention
Purpose of the present invention: a kind of explosion welding technique with shape protection function is provided, and after the explosive welding, weldment is indeformable, and the weld strength height, and in technical process such as machined, heat treatment, compound interface does not ftracture.
Realize imagination of the present invention:
Use at present explosion welding technique, success produce tabular or pipe shape composite.For the radiator or other profile shapes that have complicated shape such as fin, in the explosive welding process, can destroy its original shape.The bending of weldment (being made up of welding compound plate and welding substrate) and distortion mainly are because when explosive welding, the welding compound plate is to the high velocity impact of welding substrate, and the existence of weldment dump energy, make it continue to move downward, and produce with basic role.Therefore, can design a kind of special explosion welding technique, reduce the remaining kinetic energy of weldment, weldment is implemented safeguard measure, the energy-absorbing basis is set simultaneously, buffering ground reaches the purpose that prevents the weldment distortion to the impact of weldment.
Realize technical scheme of the present invention:
At first; under the prerequisite that realizes good welds; should reduce the impact velocity of welding compound plate to welding substrate; thereby can reduce the blastic deformation of weldment; impact velocity should be controlled at 320～350 meter per seconds; also should reduce the mass ratio (ratio of the quality of explosive and compound plate quality on the unit are) of powder charge; can reduce the dump energy of weldment like this, mass ratio is controlled at 0.5～0.7, simultaneously; to take safeguard measure to weldment; as shown in Figure 2, weldment is placed the protection mould, the protection mould encloses hoop by the rigidity metal and filler is formed; filler can adopt metal material, also can adopt nonmetallic materials or two kinds of mixtures of material.The effect that metal encloses hoop and filler is the distortion of restriction weldment, metal charge can adopt materials (metal powder or plate) such as iron, copper, aluminium, lead, nonmetal filler can adopt materials such as gypsum, cement, paraffin, polyvinyl chloride, select the component of filler according to the form of weldment, fill up the space of weldment with filler.In order to reduce the blastic deformation effect of ground, explosion welding apparatus (comprising explosive, weldment, protection mould) should be placed on " energy-absorbing basis " weldment.Loose, dusty material are adopted in the energy-absorbing basis, as fine ore powder, fine sand etc., according to the explosive payload of explosive welding, adjust the degree of depth on energy-absorbing basis, utilize the cushioning effect on energy-absorbing basis that the dump energy of weldment is sponged.
Effect of the present invention and benefit:
Using the present invention mainly is that the shape of weldment remains unchanged after can be implemented in explosive welding.As radiator of the compound end of the aluminum bronze that explodes, the application explosion welding technique is welded on copper coin on the aluminium radiator to be made, it is applicable on computer, electronic component and the various heater, has heat dispersion efficiently, be the composition metal radiator of no any sticky object between a kind of novel, copper aluminium, can satisfy the needs that computer market is badly in need of improving the CPU heat-sinking capability.The present invention is applicable to the explosive welding of the radiator and the high thermal conductivity metal material of various materials, also is applicable to various profile shapes and needs the non-tablet workpiece of shape protection and the explosive welding of carbon steel, steel alloy, non-ferrous metal board.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of aluminium radiator, among the figure: at the bottom of (1) radiator, (2) radiator fins.
Accompanying drawing 2 is to realize explosive welding structural representation of the present invention, among the figure: (3) explosive, (4) plank encloses frame, (5) welding compound plate, (6) assemblage gap, (7) support ring, (8) welding substrate, (9) metal encloses hoop, (10) filler, (11) energy-absorbing basis.
The specific embodiment:
Below in conjunction with accompanying drawing, be described in detail embodiments of the invention.Welding substrate (8) is the strip aluminium radiator, and welding compound plate (5) is the thick copper coin of 4mm, and the fin height of welding substrate (8) is 30mm, and explosive (3) is powdery ammonium nitrate and hexogen-mixed explosive, and weight ratio is ammonium nitrate: RDX=95: 5.Explosive (3) evenly is covered with on welding compound plate (5), and for plank encloses frame (4), explosive thickness is 30mm around the explosive, and the explosion velocity of explosive is 2100 meter per seconds.Welding substrate (8) is 5mm with the assemblage gap (6) of welding compound plate (5), support ring (7) is placed on the welding substrate (8), its effect is to support welding compound plate (5) to keep certain clearance with welding substrate (8), support ring (7) material is an aluminium, by thickness is that the aluminium flake of 1mm is rolled into the annular that diameter is about 4mm, and the height of support ring (7) is 5mm.Filler (10) adds iron powder for gypsum, weight ratio is, gypsum: iron powder=50: 50, iron powder is the general industry iron powder, add an amount of water, after stirring, filler is full of all spaces of welding substrate (8) and welding substrate (8) and metal encloses between the hoop (9), filler exceeds 50mm (as shown in Figure 2) than fin, carries out explosive welding behind the filler consolidation and sclerosis.It is that the general steel plate of 20mm is made with thickness that metal encloses hoop (9), and energy-absorbing basis (11) are common fine ore powder, and base thickness is 300mm.After the explosive welding, the shape of weldment remains unchanged.
Claims (1)
1. the composite metal material explosion welding technology that has shape protection function; specially refer to the shape protection of special-shaped material in explosive welding of radiator class and non-tablet; designed the guard method of the control principle and the weldment shape of explosive welding parameter; it is characterized in that weldment is placed the protection mould; the protection mould encloses hoop by the rigidity metal and filler is formed; filler can adopt metal material; also can adopt nonmetallic materials or two kinds of mixtures of material, the explosion welding apparatus of being made up of explosive, weldment and protection mould is installed on the energy-absorbing basis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011214589A CN1189284C (en) | 2002-01-04 | 2002-01-04 | Composite metal material explosion welding technology with shape protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011214589A CN1189284C (en) | 2002-01-04 | 2002-01-04 | Composite metal material explosion welding technology with shape protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1358600A true CN1358600A (en) | 2002-07-17 |
| CN1189284C CN1189284C (en) | 2005-02-16 |
Family
ID=4740438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011214589A Expired - Fee Related CN1189284C (en) | 2002-01-04 | 2002-01-04 | Composite metal material explosion welding technology with shape protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189284C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850470A (en) * | 2010-06-21 | 2010-10-06 | 中国人民解放军理工大学 | Interlocking-type double-vertical explosive welding protecting device |
| CN101549435B (en) * | 2008-04-03 | 2012-06-13 | 富准精密工业(深圳)有限公司 | Method for manufacturing heat sink |
| CN103862233A (en) * | 2014-02-12 | 2014-06-18 | 江苏呈飞精密合金股份有限公司 | Preparation method of composite plate with corrugated sandwich layer structure |
| CN105234549A (en) * | 2015-10-28 | 2016-01-13 | 桂林新艺制冷设备有限责任公司 | Manufacturing technology of radiator |
| CN113385902A (en) * | 2021-07-16 | 2021-09-14 | 湖南方恒新材料技术股份有限公司 | Heat dissipation plate and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5214790B2 (en) * | 2011-10-12 | 2013-06-19 | 株式会社 旭 | Manufacturing method of joined body, joined body and metal product |
-
2002
- 2002-01-04 CN CNB011214589A patent/CN1189284C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549435B (en) * | 2008-04-03 | 2012-06-13 | 富准精密工业(深圳)有限公司 | Method for manufacturing heat sink |
| CN101850470A (en) * | 2010-06-21 | 2010-10-06 | 中国人民解放军理工大学 | Interlocking-type double-vertical explosive welding protecting device |
| CN103862233A (en) * | 2014-02-12 | 2014-06-18 | 江苏呈飞精密合金股份有限公司 | Preparation method of composite plate with corrugated sandwich layer structure |
| CN105234549A (en) * | 2015-10-28 | 2016-01-13 | 桂林新艺制冷设备有限责任公司 | Manufacturing technology of radiator |
| CN113385902A (en) * | 2021-07-16 | 2021-09-14 | 湖南方恒新材料技术股份有限公司 | Heat dissipation plate and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1189284C (en) | 2005-02-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |