CN109834278A - The preparation method of fibre reinforced parent metal laminate - Google Patents
The preparation method of fibre reinforced parent metal laminate Download PDFInfo
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- CN109834278A CN109834278A CN201711206459.7A CN201711206459A CN109834278A CN 109834278 A CN109834278 A CN 109834278A CN 201711206459 A CN201711206459 A CN 201711206459A CN 109834278 A CN109834278 A CN 109834278A
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Abstract
The invention discloses a kind of preparation methods of fibre reinforced parent metal laminate, this method are as follows: one, using polishing method to being roughened in conjunction with metal fiber polyporous material on one side on metal substrate, dried after then cleaning up the greasy dirt on roughened treated metal substrate；Two, metal powder is configured to suspension；Three, being immersed in suspension in conjunction with metal substrate on one side by metal fiber polyporous material adsorbs suspension using capillary force；Four, blank is placed in sintering furnace and is sintered, furnace cooling obtains metal fiber composite porous surface of metal fiber.Method of the invention makes to be combined more by force between metal substrate and metal fiber polyporous material while not destroying metal polyporous material, and the metal fiber composite porous surface of metal fiber thermal resistance of acquisition is small, and heat-transfer effect is good.
Description
Technical field
The invention belongs to porous surface preparation technical fields, and in particular to a kind of system of fibre reinforced parent metal laminate
Preparation Method.
Background technique
Porous surface metal is due to its unique enhanced heat transfer mechanism and efficient heat transfer property, it has also become one kind has wide
The novel heat exchange surface of general application prospect.Existing heat transfer porous surface metal manufacturing method mainly has: mechanical processing method, powder
Last sintering process and fiber winding method etc..
Mechanical processing method is stringent to the original size tolerance of tubing, and is only applicable to softer metals.Although can be with
Mass production antipriming pipe, but it can not process the gap of very little, thus it is limited to the raising of its heat transfer property, and on surface
Using effect is unobvious in the lesser medium of tension.The porous surface pipe processing technique of powder sintering manufacture is complicated, hole not
It is regular, connectivity is poor, energy consumption is high, has three-waste pollution, and be easy to produce deformation annealing at high temperature, and efficiently strong bringing
While changing effect, serious boiling lag is also produced, the processing and fabricating of irregular surface is especially not suitable for.
Metallic fiber porous surface has porosity compared with porous surface prepared by mechanical processing method and powder sintering
The advantages that high, heat transfer large specific surface area, nucleus of boiling number be more, pollution-free, light specific gravity.But the porous table of metallic fiber now
Face fails enough attention based on winding, to the interface cohesion of fiber and matrix, and this combination directly results in the increasing of its thermal resistance
Greatly, heat-transfer effect is influenced.Therefore the interface cohesion for improving metal fiber polyporous material and substrate, to metallic fiber porous surface
It is prepared with vital effect.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of fibre reinforced
The preparation method of parent metal laminate.This method makes metal substrate and metallic fiber more while not destroying metal polyporous material
It is combined more by force between Porous materials.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of fibre reinforced parent metal laminate
Preparation method, which is characterized in that method includes the following steps:
Step 1: using polishing method to being carried out at roughening on one side in conjunction with metal fiber polyporous material on metal substrate
Reason is dried after then cleaning up the greasy dirt on roughened treated metal substrate；The metal substrate and metal are fine
The material for tieing up porous material is identical；
Step 2: preparing the aqueous solution that isocyanate concentration is 2%~10%, then metal powder is added water-soluble
In liquid, suspension is obtained；
Step 3: by the metal fiber polyporous material that suspension is adsorbed in step 2 according to be adsorbed with the one side of suspension with
The mode of metal substrate contact is placed in the metallic substrate surfaces after drying in step 1, is then put into baking oven and dries together, obtains
To blank；
It is sintered Step 4: blank described in step 3 is placed in sintering furnace, it is multiple that furnace cooling obtains metallic fiber
Close porous surface.
A kind of preparation method of above-mentioned fibre reinforced parent metal laminate, sintering process described in step 5 is in hydrogen
It carries out under the atmosphere protection of gas or argon gas, or carries out under vacuum.
A kind of preparation method of above-mentioned fibre reinforced parent metal laminate further includes adopting after being sintered described in step 5
Sintered metal fiber composite porous surface of metal fiber is trimmed with wire cutting machine, then using hydraulic press to the metal after trimming
Fiber composite porous surface carries out smooth processing.
A kind of preparation method of above-mentioned fibre reinforced parent metal laminate, the hydraulic press are 100 t hydraulic press, are put down
The pressure of whole processing is not more than 1MPa.
Compared with the prior art, the present invention has the following advantages:
1, preparation method of the present invention is simple, and design is reasonable, it is easy to accomplish.
2, method of the invention makes metal substrate and metal fiber polyporous material while not destroying metal polyporous material
Between combined more by force, the metal fiber composite porous surface of metal fiber thermal resistance of acquisition is small, and heat-transfer effect is good.
3, the present invention sintered metal fiber composite porous surface of metal fiber trim by wire cutting machine and hydraulic press and
It is smooth, it is adjusted to required size and thickness, during smooth thickness, the pressure used is smaller, therefore smooth for gold
The influence for belonging to fiber composite porous surface pore structure can be ignored.
Below by embodiment, technical scheme of the present invention will be described in further detail.
Specific embodiment
Embodiment
Step 1: choosing sintered string diameter is 80 μm, the red copper fibrofelt of porosity 90% is as porous material, 2mm
Thick copper plate is used as substrate, and cut size is 100mm × 100mm, using sand paper polish on copper plate with red copper fibrofelt knot
That closes is roughened on one side, dries after then cleaning up the greasy dirt on roughened treated copper plate；
Step 2: choosing the red copper powder that particle diameter is 140 μm~160 μm, the polyethylene that mass concentration is 2% is added
The suspension that red copper powder quality concentration is 8% is configured in alcohol solution；
Step 3: being immersed in suspension described in step 2 in conjunction with copper plate on one side by red copper fibrofelt, utilizes
Capillary force adsorbs suspension；The red copper fibrofelt be impregnated in suspension with a thickness of 0.2mm；
Step 4: blank described in step 3 is placed in sintering furnace, under hydrogen protection, heating rate is 15 DEG C/min
Under conditions of be warming up to 900 DEG C~950 DEG C and be sintered, keep the temperature 2h, 50Pa pressure applied to blank in sintering process, it is cold with furnace
But red copper fiber composite porous surface is obtained；Sintered red copper fiber composite porous surface is repaired using wire cutting machine
It cuts, then uses 100 t hydraulic press, to the red copper fiber composite porous surface after trimming under conditions of pressure is not more than 1MPa
Carry out smooth processing.
The thermal resistance of red copper fiber composite porous surface manufactured in the present embodiment is than copper plate and red copper fibrofelt direct combination
The thermal resistance of material reduce by 1/2 or so, the heat transfer property of composite porous surface improves 3~6 than the heat transfer property of red copper optical surface
Times.
Claims (1)
1. a kind of preparation method of fibre reinforced parent metal laminate, which is characterized in that method includes the following steps:
Step 1: using polishing method to being roughened in conjunction with metal fiber polyporous material on one side on metal substrate,
Then it is dried after the greasy dirt on roughened treated metal substrate being cleaned up；The metal substrate and metallic fiber are more
The material of Porous materials is identical；
Step 2: preparing the aqueous solution that isocyanate concentration is 2%~10%, aqueous solution then is added in metal powder
In, obtain suspension；
Step 3: by the metal fiber polyporous material of suspension is adsorbed in step 2 according to the one side and metal for being adsorbed with suspension
The mode of substrate contact is placed in the metallic substrate surfaces after drying in step 1, is then put into baking oven and dries together, obtains base
Material；
It is sintered Step 4: blank described in step 3 is placed in sintering furnace, it is compound more that furnace cooling obtains metallic fiber
Hole surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206459.7A CN109834278A (en) | 2017-11-27 | 2017-11-27 | The preparation method of fibre reinforced parent metal laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206459.7A CN109834278A (en) | 2017-11-27 | 2017-11-27 | The preparation method of fibre reinforced parent metal laminate |
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| Publication Number | Publication Date |
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| CN109834278A true CN109834278A (en) | 2019-06-04 |
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| CN201711206459.7A Pending CN109834278A (en) | 2017-11-27 | 2017-11-27 | The preparation method of fibre reinforced parent metal laminate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809008A (en) * | 2020-07-22 | 2021-05-18 | 张明明 | Heat conduction layer preparation process based on porous sintering of metal powder fiber |
-
2017
- 2017-11-27 CN CN201711206459.7A patent/CN109834278A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809008A (en) * | 2020-07-22 | 2021-05-18 | 张明明 | Heat conduction layer preparation process based on porous sintering of metal powder fiber |
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Application publication date: 20190604 |