CN103722294B - A kind of chromiumcopper and stainless method of attachment - Google Patents
A kind of chromiumcopper and stainless method of attachment Download PDFInfo
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- CN103722294B CN103722294B CN201310638247.1A CN201310638247A CN103722294B CN 103722294 B CN103722294 B CN 103722294B CN 201310638247 A CN201310638247 A CN 201310638247A CN 103722294 B CN103722294 B CN 103722294B
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/003—Welding in a furnace
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
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Abstract
The invention discloses a kind of chromiumcopper and stainless method of attachment, after respectively surface clean being carried out to stainless steel ladder coupon and chromiumcopper coupon, with the surface attachment one deck chromium of electric plating method at stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon and carry out introduced details, namely obtain chromiumcopper-rustless steel double-metal material.Chromiumcopper of the present invention and stainless method of attachment, obtain chromiumcopper-rustless steel double-metal material, the a series of sign such as microstructure and composition analysis, tensile strength detection is carried out to this bimetallic material combination interface, find that boundary strength is stable higher than matrix, interface stability significantly improves, and the connection for foreign material provides a kind of technical method.
Description
Technical field
The invention belongs to technical field of dissimilar material connection, relate to a kind of chromiumcopper and stainless method of attachment.
Background technology
Along with developing rapidly of science and technology, more and more higher to the requirement of material property, existing homogenous material can not meet some Special use requirements far away.For this reason, both at home and abroad a large amount of scholar adopts various interconnection technique to be coupled together by the material of different performance, learns from other's strong points to offset one's weaknesses, obtain homogenous material incomparable, novel dual metal material that combination property is superior.The chromiumcopper that chromiumcopper and stainless steel are formed by connecting-rustless steel double-metal material owing to having the advantages such as corrosion-resistant, the good mechanical performance of the high conduction performance of chromiumcopper, high thermal conductivity, low contact resistance and stainless steel simultaneously, thus has broad application prospects in the fields such as Aero-Space, automobile making, nuclear energy engineering, machine-building.
At present, Application comparison widely interconnection technique mainly contain: mechanical connection, to glued joint and welding etc.But the interface binding power of the bimetallic material that these methods obtain is low, material property reduces near land, cannot form desirable bonding interface layer, larger on the serviceability impact of its integral material.
Summary of the invention
The object of this invention is to provide a kind of chromiumcopper and stainless method of attachment, solve that the bimetallic material interface binding power that existing interconnection technique obtains is low, material property reduces near land problem.
The technical solution adopted in the present invention is, a kind of chromiumcopper and stainless method of attachment, after respectively surface clean being carried out to stainless steel ladder coupon and chromiumcopper coupon, with the surface attachment one deck chromium of electric plating method at stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon and carry out introduced details, namely obtain chromiumcopper-rustless steel double-metal material.
Feature of the present invention is also,
Stainless steel ladder coupon obtains in the following manner: be that the stainless steel bars of 1Cr18Ni9Ti carries out the ladder coupon that machined oxide layer aft-loaded airfoil becomes Φ 26mm × 30mm+ Φ 13mm × 10mm by material.
Chromiumcopper coupon obtains in the following manner: coupon chromium content 0.5 ~ 0.8wt% chromiumcopper bar being cut into Φ 28mm × 40mm.
Surface clean specific operation process is as follows: surface and oil contaminant is first wiped clean with soft cloth or paper by stainless steel ladder coupon and chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing.
Welding is carried out in micro-computer controlled high temperature sintering furnace, and specific operation process is: heat with the firing rate of 15 ~ 25 DEG C/min, when temperature reaches 1080 ~ 1180 DEG C, cools after insulation 30 ~ 90min with stove.
The invention has the beneficial effects as follows, chromiumcopper of the present invention and stainless method of attachment, by plated surface one deck chromium of stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon and carry out introduced details, obtain boundary strength and stablize chromiumcopper-rustless steel double-metal material higher than matrix, find by analyzing, interface stability significantly improves, and the connection for foreign material provides a kind of technical method.
Accompanying drawing explanation
Fig. 1 is the process chart of chromiumcopper of the present invention and stainless method of attachment;
Fig. 2 is the placement sequential schematic of coupon in graphite crucible in method of attachment of the present invention;
Fig. 3 is the fracture SEM figure of chromiumcopper-rustless steel double-metal material that the embodiment of the present invention 1 obtains;
Fig. 4 is the partial enlarged drawing of Fig. 3.
In figure, 1. chromiumcopper coupon, 2. stainless steel ladder coupon, 3. porous ceramics dividing plate, 4. active carbon.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of chromiumcopper of the present invention and stainless method of attachment, after respectively surface clean being carried out to stainless steel ladder coupon and chromiumcopper coupon, with the surface attachment one deck chromium of electric plating method at stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon and carry out introduced details, namely obtain chromiumcopper-rustless steel double-metal material.
As shown in Figure 1, specifically implement according to following steps:
Material is that the stainless steel bars of 1Cr18Ni9Ti carries out machined oxide layer aft-loaded airfoil and becomes the ladder coupon of Φ 26mm × 30mm+ Φ 13mm × 10mm to obtain stainless steel ladder coupon by step 1; Chromium content 0.5 ~ 0.8wt% chromiumcopper bar is cut into the coupon of Φ 28mm × 40mm, obtain chromiumcopper coupon;
Step 2, obtains stainless steel ladder coupon by step 1 and surface and oil contaminant is first wiped clean with soft cloth or paper by chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing;
Step 3, adopt surface attachment one deck chromium of the stainless steel ladder coupon of electric plating method after surface clean, as shown in Figure 2, then chromiumcopper coupon 1 is put in stainless steel ladder coupon 2 to be together positioned over bottom above and to have in the graphite crucible of active carbon 4, one deck porous ceramics dividing plate 3 is placed with between stainless steel ladder coupon 2 and active carbon 4, introduced details is carried out in micro-computer controlled high temperature sintering furnace, specific operation process is: heat with the firing rate of 15 ~ 25 DEG C/min, when temperature reaches 1080 ~ 1180 DEG C, cool with stove after insulation 30 ~ 90min, namely chromiumcopper-rustless steel double-metal material is obtained.
Some activated carbon granules are placed bottom graphite crucible, one deck porous ceramics dividing plate is placed with between active carbon and stainless steel ladder coupon, porous ceramics dividing plate can be communicated with the active carbon of crucible bottom and the coupon of top, enables active carbon play its reduction.
Embodiment 1
Step 1, is that the stainless steel bars (Φ 30mm) of 1Cr18Ni9Ti carries out the ladder coupon that machined oxide layer aft-loaded airfoil becomes Φ 26mm × 30mm+ Φ 13mm × 10mm by material, obtains stainless steel ladder coupon; Chromium content 0.5 ~ 0.8wt% chromiumcopper bar (Φ 30mm) is cut into the coupon of Φ 28mm × 40mm, obtain chromiumcopper coupon;
Step 2, obtains stainless steel ladder coupon by step 1 and surface and oil contaminant is first wiped clean with soft cloth or paper by chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing;
Step 3, adopt surface attachment one deck chromium of the stainless steel ladder coupon of electric plating method after surface clean, as shown in Figure 2, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon, one deck porous ceramics dividing plate is placed with between stainless steel ladder coupon and active carbon, introduced details is carried out in micro-computer controlled high temperature sintering furnace, specific operation process is: heat with the firing rate of 15 DEG C/min, when temperature reaches 1120 DEG C, cool with stove after insulation 60min, namely chromiumcopper-rustless steel double-metal material is obtained.
Embodiment 2
Step 1, is that the stainless steel bars (Φ 30mm) of 1Cr18Ni9Ti carries out the ladder coupon that machined oxide layer aft-loaded airfoil becomes Φ 26mm × 30mm+ Φ 13mm × 10mm by material, obtains stainless steel ladder coupon; Chromium content 0.5 ~ 0.8wt% chromiumcopper bar (Φ 30mm) is cut into the coupon of Φ 28mm × 40mm, obtain chromiumcopper coupon;
Step 2, obtains stainless steel ladder coupon by step 1 and surface and oil contaminant is first wiped clean with soft cloth or paper by chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing;
Step 3, adopt surface attachment one deck chromium of the stainless steel ladder coupon of electric plating method after surface clean, as shown in Figure 2, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon, one deck porous ceramics dividing plate is placed with between stainless steel ladder coupon and active carbon, introduced details is carried out in micro-computer controlled high temperature sintering furnace, specific operation process is: heat with the firing rate of 20 DEG C/min, when temperature reaches 1080 DEG C, cool with stove after insulation 90min, namely chromiumcopper-rustless steel double-metal material is obtained.
Embodiment 3
Step 1, is that the stainless steel bars (Φ 30mm) of 1Cr18Ni9Ti carries out the ladder coupon that machined oxide layer aft-loaded airfoil becomes Φ 26mm × 30mm+ Φ 13mm × 10mm by material, obtains stainless steel ladder coupon; Chromium content 0.5 ~ 0.8wt% chromiumcopper bar (Φ 30mm) is cut into the coupon of Φ 28mm × 40mm, obtain chromiumcopper coupon;
Step 2, obtains stainless steel ladder coupon by step 1 and surface and oil contaminant is first wiped clean with soft cloth or paper by chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing;
Step 3, adopt surface attachment one deck chromium of the stainless steel ladder coupon of electric plating method after surface clean, as shown in Figure 2, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon, one deck porous ceramics dividing plate is placed with between stainless steel ladder coupon and active carbon, introduced details is carried out in micro-computer controlled high temperature sintering furnace, specific operation process is: heat with the firing rate of 25 DEG C/min, when temperature reaches 1180 DEG C, cool with stove after insulation 30min, namely chromiumcopper-rustless steel double-metal material is obtained.
Chromiumcopper embodiment 1 obtained/rustless steel double-metal material carries out Linear cut and machined is prepared into metallographic specimen and tension coupon, by metallographic microscope or its combination interface of scanning electron microscopic observation, carry out tensile test with universal testing machine and record its interface bond strength σ
b=392MPa, apparently higher than the intensity of matrix copper evanohm self.Fig. 3 is the fracture SEM figure of chromiumcopper-rustless steel double-metal material reducing coupon that the embodiment of the present invention 1 obtains; Fig. 4 is the partial enlarged drawing of Fig. 3, can find from Fig. 3 and Fig. 4, although devise reducing coupon, but rupture in combination interface place CuCr alloy side, illustrate that interface binding power is higher than measured value 392MPa, interface cohesion is good, far above the intensity of chromiumcopper self, can meet its normal instructions for use.
Chromiumcopper of the present invention and stainless method of attachment, by plated surface one deck chromium of stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon and carry out introduced details, obtain boundary strength and stablize chromiumcopper-rustless steel double-metal material higher than matrix, then microstructure and composition analysis is carried out to this bimetallic material combination interface, the a series of signs such as tensile strength detection, find that boundary strength is stable higher than matrix, interface stability is significantly improved, connection for foreign material provides a kind of technical method.
Claims (3)
1. a chromiumcopper and stainless method of attachment, it is characterized in that, after respectively surface clean being carried out to stainless steel ladder coupon and chromiumcopper coupon, with the surface attachment one deck chromium of electric plating method at stainless steel ladder coupon, then chromiumcopper coupon is put in and is together positioned over bottom after above stainless steel ladder coupon and has in the graphite crucible of active carbon, one deck porous ceramics dividing plate is placed with between active carbon and stainless steel ladder coupon, carry out introduced details, namely obtain chromiumcopper-rustless steel double-metal material;
Wherein stainless steel ladder coupon obtains in the following manner: be that the stainless steel bars of 1Cr18Ni9Ti carries out the ladder coupon that machined oxide layer aft-loaded airfoil becomes Φ 26mm × 30mm+ Φ 13mm × 10mm by material;
Wherein chromiumcopper coupon obtains in the following manner: coupon chromium content 0.5 ~ 0.8wt% chromiumcopper bar being cut into Φ 28mm × 40mm.
2. chromiumcopper according to claim 1 and stainless method of attachment, it is characterized in that, surface clean specific operation process is as follows: surface and oil contaminant is first wiped clean with soft cloth or paper by stainless steel ladder coupon and chromiumcopper coupon, is immersed in subsequently in alcohol reagent and carries out the remaining greasy dirt of supersonic oscillations removing.
3. according to the arbitrary described chromiumcopper of claim 1 ~ 2 and stainless method of attachment, it is characterized in that, welding is carried out in micro-computer controlled high temperature sintering furnace, specific operation process is: heat with the firing rate of 15 ~ 25 DEG C/min, when temperature reaches 1080 ~ 1180 DEG C, cool with stove after insulation 30 ~ 90min.
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Families Citing this family (7)
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| CN104259439B (en) * | 2014-09-16 | 2016-10-05 | 西安理工大学 | A kind of preparation method of aluminium bronze-rustless steel double-metal composite |
| CN104384737B (en) * | 2014-09-19 | 2016-06-01 | 西安理工大学 | The liquid-solid method of attachment of a kind of copper tungsten pseudoalloy and stainless steel abnormal member |
| CN104475701A (en) * | 2014-12-08 | 2015-04-01 | 西安理工大学 | Production method of steel clad copper composite |
| CN107584127B (en) * | 2017-08-25 | 2021-09-10 | 苏州志烽密姆粉末冶金有限公司 | Method for combining binary false alloy and alloy interface containing transition metal and combined part |
| CN107775168B (en) * | 2017-09-20 | 2018-09-25 | 西安理工大学 | A kind of connection method of chromiumcopper and stainless steel |
| CN107738030B (en) * | 2017-09-20 | 2019-03-26 | 西安理工大学 | A kind of law temperature joining method of aluminium bronze and stainless steel |
| US11724311B2 (en) * | 2019-09-26 | 2023-08-15 | Ingersoll-Rand Industrial U.S., Inc. | Components and the manufacture thereof via welding with reduced alloy-depletion |
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