CN106591612A - Preparation method of composite armour material and stirring device for preparing armour material - Google Patents
Preparation method of composite armour material and stirring device for preparing armour material Download PDFInfo
- Publication number
- CN106591612A CN106591612A CN201610977832.8A CN201610977832A CN106591612A CN 106591612 A CN106591612 A CN 106591612A CN 201610977832 A CN201610977832 A CN 201610977832A CN 106591612 A CN106591612 A CN 106591612A
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- Prior art keywords
- graphene
- preparation
- armour material
- composite armour
- magnesium alloy
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a preparation method of a composite armour material and a stirring device for preparing the armour material. The addition amount of graphene in the composite armour material accounts for 0.5% to 1% of the total mass of the armour material. The graphene is dispersed through an ultrasonic dispersion method, ethyl alcohol is adopted as an ultrasonic dispersion medium, and the graphene/magnesium alloy mixed powder free of hardening and agglomeration is prepared through simple process operation such as mixing, drying and grinding. According to the technical scheme, the balance uniformity of the graphene in the metal powder is good, the preparation process is simple, and the process is adjustable and controllable. The material is low in preparation process, suitable for industrial production and good in market prospect.
Description
Technical field
The present invention relates to a kind of preparation method of composite, in particular to a kind of preparation method of composite armour material
And its agitating device.
Background technology
Graphene is a kind of two-dimension nano materials being made up of carbon atom, and in monolayer laminated structure, (thickness is only several receiving
Rice).Due to its unique bi-dimensional cellular crystal structure and high bond strength, Graphene is the specific strength in the world being currently known
Highest, most hard nano material, its fracture strength is up to 130GPa.Therefore, using the high intensity of Graphene, by itself and metal
Material cladding, is prepared into Graphene/metal composite armour material, is a kind of new high-strength and high ductility metal-based compound plate armour material
Material.
At present Graphene mainly has two kinds with the preparation method of metal composite armour material：Melt casting and powder metallurgy
Method.For example, when preparing Graphene/magnesium composite armour material using melt casting, due to Graphene and both magnesium density variation
Greatly, Graphene is difficult to disperse in liquid magnesium alloy inner homogeneous, additionally, the two is likely occurred high temperature circle in material preparation process
Face is reacted, and reduces material property, therefore Graphene/magnesium composite armour material is less is prepared using melt casting.Using powder
When last metallurgy method prepares Graphene/magnesium composite armour material, it is necessary first to obtain Graphene and the mixed uniformly powder body of magnesium alloy,
Then Graphene/magnesium composite block material is prepared by follow-up pressure processing, conventional melt casting is suppressed to greatest extent
The high-temperature interface reaction that method is brought.Therefore, Graphene/magnesium composite armour material is typically prepared using powder metallurgic method.
At present, LAV has been used up steel bulletproof armour, and gunship adopts titanium alloy bulletproof armour.But
It is that future war all proposes higher and higher wanting to the long-range delivery ability of ground force, the payload capability of gunship
Ask, this just proposes rigors to equipping weight, and existing steel armor and titanium alloy armor can not meet following weapon
The needs of equipment Development.Therefore need to provide a kind of density low, low cost, easily the composite armour material of batch production and its preparation
The mixing apparatus of this material.
For metal-based compound armour material, whether distribution of the enhancing in metallic matrix be uniform, enhancing is mutually
It is no that reunion, interface cohesion occur whether closely, directly decide the quality of composite armour material property.Therefore, Graphene is in gold
How dispersed in category matrix is realized, is to prepare the key technology that Graphene/metal composite armour material needs to break through.Especially
When it is to prepare Graphene/metal composite armour material using powder metallurgic method, Graphene how is obtained equal in metal-powder
Even scattered mixed powder, is premise and the basis for preparing high-quality Graphene/metal composite armour material.
The content of the invention
In order to overcome the above-mentioned deficiency of prior art, the invention provides the new side that a kind of Graphene mixes with metal-powder
Method, is capable of achieving Graphene and mixes with the uniform of metal-powder.
The purpose of the present invention employs the following technical solutions realization：
A kind of preparation method of composite armour material, comprises the steps：
(1) magnesium alloy powder of Graphene and -200+400 mesh is weighed；
(2) Graphene 0.5～1.0h of ultrasonic disperse in alcoholic solution, obtains Graphene/ethanol mixed solution；
(3) magnesium alloy powder is dividedly in some parts in the Graphene/ethanol mixed solution, 100～500r/min of rotating speed, temperature
At 40～60 DEG C of degree, mix 1～2h, obtain the Graphene/magnesium alloy mixed powder of semisolid pasty state；
At (4) 50～60 DEG C, the Graphene/magnesium alloy 2～3h of mixed powder of the drying semisolid pasty state；
(5) roll Graphene/magnesium alloy mixed powder that step (4) obtains and obtain the mixed-powder without hardened reunion；
Magnesium alloy contains by mass percentage following components：Aluminum, 2～10%, zinc, 0.2～2%, manganese, 0.1～0.6%,
Antimony, 0.1～2%, remaining is magnesium.
A kind of first preferred version of the preparation method of composite armour material, aluminum, 6%.
A kind of second preferred version of the preparation method of composite armour material, zinc, 1.2%.
A kind of 3rd preferred version of the preparation method of composite armour material, manganese, 0.4%.
A kind of 4th preferred version of the preparation method of composite armour material, antimony, 1%.
A kind of 5th preferred version of the preparation method of composite armour material, in step (1), Graphene accounts for composite armour material
The 0.5～1.0% of material gross mass.
A kind of 6th preferred version of the preparation method of composite armour material, in step (2), ultrasonic disperse is thin using ultrasound
Born of the same parents' crusher；Less than 10 layers of Graphene accounts for 60-70%.
A kind of 7th preferred version of the preparation method of composite armour material, in step (3), the speed being dividedly in some parts is
100～150g/10min；In step (4), ethanol condensate recycling device is used in drying.
A kind of 8th preferred version of the preparation method of composite armour material, in step (5), rolls the time for 2～3h.
The present invention also provides a kind of agitating device of composite armour material, and device includes base, the perseverance on base
Warm bath, the bracing frame being fixed on base and it is arranged on the mechanical agitation part on bracing frame top, it is characterised in that the constant temperature
Bath include pot, temperature sensor, single-chip microcomputer, memory module, heater-driven module, refrigerator drive module, heater,
Refrigerator；The single-chip microcomputer connects respectively with temperature sensor, memory module, heater-driven module and refrigerator drive module
Connect；The heater-driven module is connected with heater；The mechanical agitation part includes scalable puddler, stirring motor, speed
Degree controller, the speed control connects the stirring motor, and the scalable puddler connects the stirring motor；It is described
Stirring vane is provided with scalable puddler.
With immediate prior art ratio, the present invention provide technical scheme there is following excellent effect：
(1) preparation method that the present invention is provided, Graphene is uniformly dispersed good in metal-powder.
(2) the method preparation process that the present invention is provided is simple, and it is controllable that technique is adjustable.Material preparation cost is relatively low, is adapted to work
Industry metaplasia is produced, good market prospects.
(3) the temperature control motor stirrer that the present invention is provided, at the uniform velocity stirring, uniform heating lower the temperature to reach optimum response effect
Really.
Description of the drawings
Fig. 1 is the electron microscope of magnesium alloy-powder；
Fig. 2 is Graphene and the mixed uniformly electron microscope of magnesium alloy-powder；
Fig. 3 is the structure chart of temperature-control electric agitator；
Wherein：1. base；2. constant temperature bath；3. heater；4. stirring vane；5. scalable puddler；6. temperature sensing
Device；7. speed control；8. stirring motor；9. refrigerator；10. single-chip microcomputer；11. bracing frames.
Specific embodiment
It is described in further detail with reference to specific embodiment, technical scheme is carried out clearly and completely
Description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the present invention
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Embodiment 1：
(1) to magnesium alloy powder (- 200+400 mesh) and Graphene (Graphene accounts for the 0.5% of composite armour material gross mass)
Feeding is carried out respectively, is weighed；
(2) Graphene is placed in beaker, pour into after ethanol carries out ultrasonic disperse 0.5h in ultrasonic cell disrupte instrument；
(3) by magnesium alloy powder, in batches (100g/10min) is added in the good Graphene/alcoholic solution of ultrasonic disperse,
Rotating speed 100r/min, mixes 1h in the temperature control motor stirrer of 40 DEG C of heating-up temperature, the Graphene/magnesium for obtaining semisolid pasty state is closed
Golden mixed powder；
(4) Graphene of semisolid pasty state/magnesium alloy mixed powder is placed in ethanol condensate recycling device and is dried,
The recovery until ethanol in powder body is condensed completely, obtains dry Graphene/magnesium alloy mixed powder.50 DEG C of drying temperature,
Drying time 2h；
(5) dried Graphene/magnesium alloy mixed-powder special tooling is rolled into 2h and obtains mixed without hardened reunion
Close powder.
Magnesium alloy contains by mass percentage following components：Aluminum：2%, zinc：0.2%, manganese：0.1%, antimony：0.1%, remaining
For magnesium.
Embodiment 2：
(1) to magnesium alloy powder (- 200+400 mesh) and Graphene (Graphene accounts for the 1% of composite armour material gross mass) point
Feeding is not carried out, is weighed；
(2) Graphene is placed in beaker, pour into after ethanol carries out ultrasonic disperse 1h in ultrasonic cell disrupte instrument；
(3) by magnesium alloy powder, in batches (150g/10min) is added in the good Graphene/alcoholic solution of ultrasonic disperse,
Rotating speed 500r/min, mixes 2h in the temperature control motor stirrer of 60 DEG C of heating-up temperature, the Graphene/magnesium for obtaining semisolid pasty state is closed
Golden mixed powder；
(4) Graphene of semisolid pasty state/magnesium alloy mixed powder is placed in ethanol condensate recycling device and is dried,
The recovery until ethanol in powder body is condensed completely, obtains dry Graphene/magnesium alloy mixed powder.60 DEG C of drying temperature,
Drying time 3h；
(5) dried Graphene/magnesium alloy mixed-powder special tooling is rolled into 3h and obtains mixed without hardened reunion
Close powder.
Magnesium alloy contains by mass percentage following components：Aluminum：10%, zinc：2%, manganese：0.6%, antimony：2%, remaining is
Magnesium.
Embodiment 3：
(1) to magnesium alloy powder (- 200+400 mesh) and Graphene (Graphene accounts for the 0.8% of composite armour material gross mass)
Feeding is carried out respectively, is weighed；
(2) Graphene is placed in beaker, pour into after ethanol carries out ultrasonic disperse 1h in ultrasonic cell disrupte instrument；
(3) by magnesium alloy powder, in batches (120g/10min) is added in the good Graphene/alcoholic solution of ultrasonic disperse,
Rotating speed 300r/min, mixes 1.5h in the temperature control motor stirrer of 50 DEG C of heating-up temperature, obtain the Graphene/magnesium of semisolid pasty state
Alloy mixed powder body；
(4) Graphene of semisolid pasty state/magnesium alloy mixed powder is placed in ethanol condensate recycling device and is dried,
The recovery until ethanol in powder body is condensed completely, obtains dry Graphene/magnesium alloy mixed powder.550 DEG C of drying temperature,
Drying time 2.5h；
(5) dried Graphene/magnesium alloy mixed-powder special tooling is rolled 2.5h and is obtained without hardened reunion
Mixed-powder.
In above-described embodiment, less than 10 layers of Graphene accounts for overall 60-70%.
Magnesium alloy contains by mass percentage following components：Aluminum：6%, zinc：1.2%, manganese：0.4%, antimony：1%, remaining is
Magnesium.
Embodiment 4：
Temperature-control electric agitator used in the various embodiments described above is as shown in Figure 3.Including base 1, on base
Constant temperature bath 2, the bracing frame being fixed on base and the mechanical agitation part on bracing frame top is arranged on, constant temperature bath 1 includes pot
Body, temperature sensor 6, single-chip microcomputer, memory module, heater-driven module, refrigerator drive module, heater 3, refrigerator 9,
Single-chip microcomputer connects respectively temperature sensor, memory module, heater-driven module, refrigerator drive module, and the heater drives
Dynamic model block connects heater 3, the connection refrigerator of refrigerator 9；Mechanical agitation part includes scalable puddler 5, stirring motor, speed
Controller 7, scalable puddler connects the stirring motor 8；Stirring vane 4 is provided with scalable puddler.
The technical scheme of present invention offer is can be seen that with reference to Fig. 2 from Fig. 1, using ultrasonic dispersion dispersed graphite alkene, profit
It is ultrasonic disperse medium with ethanol, by mixing, is dried and rolls etc. simple process operation, the graphite without hardened reunion is obtained
Alkene/magnesium alloy mixed-powder, Graphene is uniformly dispersed good in metal-powder.
Finally it should be noted that：Above example only to illustrate technical scheme rather than a limitation, institute
Category field it is to be appreciated by one skilled in the art that with reference to above-described embodiment can to the present invention specific embodiment modify
Or equivalent, these any modifications or equivalent without departing from spirit and scope of the invention, it all should cover at this
Within the claims of invention.
Claims (10)
1. a kind of preparation method of composite armour material, it is characterised in that the preparation method comprises the steps：
(1) magnesium alloy powder of Graphene and -200+400 mesh is weighed；
(2) Graphene 0.5～1.0h of ultrasonic disperse in alcoholic solution, obtains Graphene/ethanol mixed solution；
(3) magnesium alloy powder is dividedly in some parts in the Graphene/ethanol mixed solution, 100～500r/min of rotating speed, temperature 40
At～60 DEG C, mix 1～2h, obtain the Graphene/magnesium alloy mixed powder of semisolid pasty state；
At (4) 50～60 DEG C, the Graphene/magnesium alloy 2～3h of mixed powder of the drying semisolid pasty state；
(5) roll Graphene/magnesium alloy mixed powder that step (4) obtains and obtain the mixed-powder without hardened reunion；
The magnesium alloy contains by mass percentage following components：Aluminum, 2～10%, zinc, 0.2～2%, manganese, 0.1～0.6%,
Antimony, 0.1～2%, remaining is magnesium.
2. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the aluminum, 6%.
3. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the zinc,
1.2%.
4. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the manganese,
0.4%.
5. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the antimony, 1%.
6. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the step (1)
In, Graphene accounts for the 0.5～1.0% of the composite armour material gross mass.
7. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the step (2)
In, the ultrasonic disperse adopts ultrasonic cell disrupte instrument；Less than 10 layers of Graphene accounts for 60-70%.
8. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the step (3)
In, the speed being dividedly in some parts is 100～150g/10min；In the step (4), the drying reclaims dress with ethanol condensation
Put.
9. a kind of preparation method of described composite armour material according to claim 1, it is characterised in that the step (5)
In, it is described to roll the time for 2～3h.
10. a kind of agitating device of the composite armour material prepared as described in any one of claim 1～9, it is characterised in that institute
Device is stated including base, the constant temperature bath on base, the bracing frame being fixed on base and bracing frame top is arranged on
Mechanical agitation part, it is characterised in that the constant temperature bath include pot, temperature sensor, single-chip microcomputer, memory module, heating
Device drive module, refrigerator drive module, heater, refrigerator；The single-chip microcomputer respectively with temperature sensor, memory module,
Heater-driven module and refrigerator drive module connect；The heater-driven module is connected with heater；The machinery is stirred
Part is mixed including scalable puddler, stirring motor, speed control, the speed control connects the stirring motor, described
Scalable puddler connects the stirring motor；Stirring vane is provided with the scalable puddler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977832.8A CN106591612A (en) | 2016-11-08 | 2016-11-08 | Preparation method of composite armour material and stirring device for preparing armour material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977832.8A CN106591612A (en) | 2016-11-08 | 2016-11-08 | Preparation method of composite armour material and stirring device for preparing armour material |
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| CN106591612A true CN106591612A (en) | 2017-04-26 |
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| CN201610977832.8A Pending CN106591612A (en) | 2016-11-08 | 2016-11-08 | Preparation method of composite armour material and stirring device for preparing armour material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251679A (en) * | 2018-01-18 | 2018-07-06 | 中北大学 | A kind of preparation method of graphene enhancing magnesium-based composite material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699612A (en) * | 2004-05-19 | 2005-11-23 | 中国科学院金属研究所 | High strength and high toughness cast magnesium alloy and preparing process thereof |
| US20120103135A1 (en) * | 2010-10-27 | 2012-05-03 | Zhiyue Xu | Nanomatrix powder metal composite |
| CN103773988A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of graphene enhanced magnesium-based composite material |
| WO2015160582A1 (en) * | 2014-04-15 | 2015-10-22 | Valspar Sourcing, Inc. | Corrosion-resistant coating composition |
| CN204746169U (en) * | 2015-05-27 | 2015-11-11 | 天津怡昇园科技发展有限公司 | Fast agitator of controllable control by temperature change |
| CN105112694A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of magnesium base graphene alloy |
-
2016
- 2016-11-08 CN CN201610977832.8A patent/CN106591612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699612A (en) * | 2004-05-19 | 2005-11-23 | 中国科学院金属研究所 | High strength and high toughness cast magnesium alloy and preparing process thereof |
| US20120103135A1 (en) * | 2010-10-27 | 2012-05-03 | Zhiyue Xu | Nanomatrix powder metal composite |
| CN103773988A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of graphene enhanced magnesium-based composite material |
| WO2015160582A1 (en) * | 2014-04-15 | 2015-10-22 | Valspar Sourcing, Inc. | Corrosion-resistant coating composition |
| CN204746169U (en) * | 2015-05-27 | 2015-11-11 | 天津怡昇园科技发展有限公司 | Fast agitator of controllable control by temperature change |
| CN105112694A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of magnesium base graphene alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251679A (en) * | 2018-01-18 | 2018-07-06 | 中北大学 | A kind of preparation method of graphene enhancing magnesium-based composite material |
| CN108251679B (en) * | 2018-01-18 | 2020-02-21 | 中北大学 | Preparation method of graphene reinforced magnesium-based composite material |
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