CN103213329A - Light-weight low-cost concrete pouring dual-layer composite structure armor and producing method thereof - Google Patents
Light-weight low-cost concrete pouring dual-layer composite structure armor and producing method thereof Download PDFInfo
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- CN103213329A CN103213329A CN2013101140508A CN201310114050A CN103213329A CN 103213329 A CN103213329 A CN 103213329A CN 2013101140508 A CN2013101140508 A CN 2013101140508A CN 201310114050 A CN201310114050 A CN 201310114050A CN 103213329 A CN103213329 A CN 103213329A
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Abstract
The invention discloses a light-weight low-cost concrete pouring dual-layer composite structure armor and a producing method thereof. as well as the upper parts and the lower parts of two square quadrangular pyramid meta net rack groups are arranged at the space between adjacent three metal panels in a welding mode so as to form a dual-layer hollow golden tower dot matrix interlayer structure; active powder concrete is poured in the dual-layer hollow golden tower dot matrix interlayer structure; a concrete direct pouring mode is adopted for producing the composite structure armor, so that a producing technology is simplified; and also the communication property of the golden tower dot matrix interlayer structure guarantees the entirety of the composite structure after the concrete pouring, so that the light-weight low-cost concrete pouring dual-layer composite structure armor provided by the invention has the characteristics of light weight, excellent penetration resistance, and capability of resisting secondary impact, developing of the integral protection effect of the armor structure; and the preparation technology is simple, and the cost is low.
Description
Technical field
The present invention relates to armoring design of composite construction and preparing technical field thereof, be specifically related to the low-cost concreting two-layer composite of a kind of lightweight plate armour and preparation method thereof.
Background technology
The individual layer homogeneous metal is armoring because its density is big, quality is big, cost is high, and the composite construction plate armour low by density gradually, that cost is low replaces.The nonhomogeneous armor that the composite construction plate armour is made up of the protective materials of two-layer above different performance, they have stronger comprehensive penertration resistance performance.
In the plate armour of existing Light armoured vehicle, individual layer or two-layer composite plate armour that metal and Ceramic Composite are formed are most widely used.Wherein armoring anti-to play efficient higher for two-layer composite, remedied that individual layer composite construction plate armour is very easily punctured by the fly bomb bullet and the defective of losing protective effect has anti-repeat hit capability, is applicable to higher anti-bullet requirement.And wherein a kind of two-layer composite is that skeleton, ceramic material are that core and the gap potting resin material between the two constitute by the wavy metal plate structure for armoring every layer.But because ceramic density is higher, generally greater than 3.0g/cm
3, increased tare, influenced the mobility of vehicle.Ceramic simultaneously general need forming through high temperature sintering, the mould that the suitable pottery of preparation and metal corrugated plate void shape need be specific, so the preparation of this composite construction plate armour is comparatively difficult, cost is higher.
The researcher attempted using the ceramic material in the lower above-mentioned double-deck corrugated plating composite construction plate armour of normal concrete material substitution of density.Because the compression strength and the ceramic phase of normal concrete are lower, the penertration resistance performance of the composite construction plate armour after substituting descends significantly.
And, no matter be that pottery or normal concrete are as core material, relative position between itself and the metal corrugated plate is difficult to fix, and resin material is mobile relatively poor in addition, has increased certain degree of difficulty therefore for the step that resin material carries out filling in the space in the preparation process.
In addition, the existence of metal corrugated plate is equivalent to overall structure has been divided into several relatively independent parts, and in the stress concentration phenomenon, the transmission of stress between various piece be difficulty at the internal memory more among a small circle of bullet effect.Therefore, this structure is difficult to give play to the whole effect of contraction of composite construction plate armour.Under the bullet penetration effect, the composite construction plate armour is often just directly run through destruction by bullet among a small circle, and other parts do not have distortion substantially, so and fail the protective action of total is not fully exerted.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the object of the present invention is to provide the low-cost concreting two-layer composite of a kind of lightweight plate armour and preparation method thereof, composite construction plate armour of the present invention has guaranteed the globality of composite construction after the concreting, have in light weight, penertration resistance excellent performance, can resist two-hit, brought into play the characteristics of the integral protection effect of armor structure, and its preparation method is simple, and is with low cost.
For reaching above purpose, the present invention adopts following technical scheme:
The low-cost concreting two-layer composite of a kind of lightweight plate armour, comprise the metal decking group, be fixed on just putting quadrangular pyramid metal truss group 2 and be cast in the metal decking group and just putting the RPC 3 of 2 of quadrangular pyramid metal truss groups between the metal decking group, described metal decking group is made up of three metal deckings 1 of order setting from top to bottom, per two adjacent metal panels 1 respectively be angled with metal decking 1 that the upper and lower of just putting quadrangular pyramid metal truss group 2 of θ is fixing to constitute double-layer hollow pyramid dot matrix sandwich, in described double-layer hollow pyramid dot matrix sandwich, built RPC 3.
Described metal decking 1 is general steel plate, corrosion resistant plate or the aluminium alloy plate that the surperficial thickness that has carried out blasting treatment in advance is not less than 0.5mm, and the spacing that adjacent two metal deckings are 1 is not less than 5mm.
The described quadrangular pyramid metal truss group 2 of just putting is just put the quadrangular pyramid metal truss for what remove bottom ridges, and the rib of each four jiaos of pyramid is thick to be 0.4mm-8mm, and its material is common iron, stainless steel or aluminium alloy material.
Folded angle θ is 10 °-80 ° between the described quadrangular pyramid rib of just putting quadrangular pyramid metal truss group 2 and the metal decking 1.
The preparation method of the low-cost concreting two-layer composite of above-mentioned described lightweight plate armour comprises the steps:
Step 1: at first adopt planisher to carry out smooth to sheet metal, blasting treatment then, obtain three metal deckings 1, again the sheet metal after the annealing in process is adopted perforation to shear and expand the metal otter board that obtains at least two equally distributed diamond shaped mesh, adopt planisher to carry out smooth then to metal otter board, adopt afterwards hydraulic press by the punching press on the diamond hole of metal otter board of square pyramid space grid mould obtain two remove bottom ridges just put quadrangular pyramid metal truss group 2, adopt high temperature brazing or Laser Welding that three metal deckings 1 are successively welded together with two top and bottoms of just putting quadrangular pyramid metal truss group 2 respectively at last, constitute double-layer hollow pyramid dot matrix sandwich;
Step 2: with water, high-mark cement, silicon ash, quartz sand, high efficiency water reducing agent and steel fibre or iron powder is that raw material mixes and mechanical agitation 3-15min by default proportioning, obtains the compound of RPC 3;
Step 3: RPC 3 compounds that obtain in the step 2 are built in the hollow-core construction of the double-layer hollow pyramid dot matrix sandwich that obtains in progressive rapid 1, leave standstill again, after the maintenance, obtain the armoring finished product of the low-cost concreting two-layer composite of lightweight.
The metal otter board thickness that quadrangular pyramid metal truss group 2 is just being put in the described preparation of step 1 is not less than 0.5mm, and the length of the short diagonal of each diamond-shaped meshes is 2mm-30mm, and the length of its long-diagonal is 4mm-70mm.
In the described compound of step 2, the silicon ash accounts for the 5-30% of high-mark cement and silicon ash gross mass, the mass ratio that water and high-mark cement add the silicon ash is 0.12-0.22:1, the mass ratio that quartz sand and high-mark cement add the silicon ash is 0.5-1.5:1, steel fibre or iron powder volume account for the 1-10% of compound cumulative volume, and the high efficiency water reducing agent quality accounts for the 0.5-3% of compound gross mass.
Described high efficiency water reducing agent is a polycarboxylate water-reducer.
Compare with prior art, the advantage of the low-cost concreting two-layer composite of the resulting lightweight of the present invention plate armour is as follows:
1, compares with ripple sandwich, the connectedness of pyramid dot matrix sandwich has guaranteed the globality of composite construction after the concreting, under the bullet penetration effect, can rapidly stress be expanded in the bigger scope, rather than be confined to have the stress concentration phenomenon in some or several ripple structions, brought into play the integral protection effect of composite construction.In the armoring initial time of this composite construction of bullet penetration, the distortion of crisscross metal truss and the impact conditions that destructive process can change bullet in the structure, the effect of playing deflection and corroding bullet.And under the stress transmission and peptizaiton of metal truss, the easier occurrence of large-area fragmentation of concrete, this shattering process can effectively absorb impact energy, thereby improves armoring anti-fly bomb impact property.
2, the existence of two-layer composite is beneficial to its strong impact resistance of performance.Bullet through bullet after the ground floor structure by jumping-up and yawing moment, increased resistance and distance that bullet moves in composite construction, with second layer structure function in bullet kinetic energy reduce significantly, very easily caught by second layer structure.Therefore the two-layer composite plate armour has remedied that the single layer structure plate armour is very easily punctured by the fly bomb bullet and the defective of losing protective effect; and this two-layer composite plate armour has still kept the characteristics of lightweight, can't cause quality too heavy and influence the defective of the mobility of vehicle.
3, the preparation cost of high strength RPC is low, and density is low (to be about 2.5g/cm
3), but mechanical property excellences such as its compression strength, the percussion that can effectively corrode bullet, and also the steel fibre in this concrete can increase the toughness of material, the secondary damage that the weakening fragment splashes and causes.
4, adopt the method directly build to substitute gluing between pottery and the metal, not only preparation technology is simple, and the concrete of building in the composite construction plate armour of back can produce micro-contraction in maintenance processes, thereby between concrete and metallic support, produce small gap, play the effect of energy-absorbing and change bullet impact state.
Therefore, the present invention has overcome existing armor technology density height, shortcoming that cost is high, realize reduction weight and cost, had impact resistance not weaken, possess the advantage of anti-Secondary Strike Capacity, the effect of performance armor structure integral protection simultaneously, had important application value.
Description of drawings
Fig. 1 is a double-layer hollow pyramid dot matrix sandwich schematic diagram of the present invention, is to remove the structural representation of partly going up metal decking from the angle that is easy to observe.
Fig. 2 is the structural representation of the low-cost concreting two-layer composite of the in type lightweight of the present invention plate armour, is to remove the structural representation of partly going up metal decking from the angle that is easy to observe.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment 1:
The preparation method of the low-cost concreting two-layer composite of a kind of lightweight of present embodiment plate armour, step is as follows:
The preparation of step 1, double-layer hollow pyramid dot matrix sandwich: it is smooth to adopt planisher that thickness is that the general steel plate of 0.5mm carries out, and carries out blasting treatment then, and it is stand-by to obtain 1 three of metal deckings; Again the thick ordinary steel sheet material for 0.5mm after the annealing in process is adopted perforation to shear and expand the metal otter board that obtains at least two equally distributed diamond shaped mesh, it is smooth to adopt planisher that metal otter board is carried out then, adopt again hydraulic press by angle be the punching press on the diamond hole of metal otter board of 30 ° square pyramid space grid mould obtain to remove bottom ridges just to put 2 two of quadrangular pyramid metal trusses stand-by; Adopt high temperature brazing that three metal deckings 1 are successively welded together with two metal trusses 2 respectively at last, constitute double-layer hollow pyramid dot matrix sandwich, as shown in Figure 1;
The preparation of the compound of step 2, high strength RPC 3: with 52.5# cement, silicon ash, quartz sand, polycarboxylate water-reducer and iron powder is that raw material mixes and mechanical agitation 5min, obtains the compound of high strength RPC 3; Wherein the silicon ash accounts for 20% of cement and silicon ash gross mass, the mass ratio that water and cement add the silicon ash is 0.14:1, the mass ratio that quartz sand and cement add the silicon ash is 0.8:1, and the iron powder volume accounts for 1% of compound cumulative volume, and the polycarboxylate water-reducer quality accounts for 1.5% of compound gross mass;
Embodiment 2:
The preparation method of the low-cost concreting two-layer composite of a kind of lightweight of present embodiment plate armour, step is as follows:
The preparation of step 1, double-layer hollow pyramid dot matrix sandwich: it is smooth to adopt planisher that thickness is that the corrosion resistant plate of 1mm carries out, and carries out blasting treatment then, and it is stand-by to obtain 1 three of metal deckings; Again the thick stainless steel materials for 1mm after the annealing in process is adopted perforation to shear and expand the metal otter board that obtains at least two equally distributed diamond shaped mesh, it is smooth to adopt planisher that metal otter board is carried out then, adopt again hydraulic press by angle be the punching press on the diamond hole of metal otter board of 45 ° square pyramid space grid mould obtain to remove bottom ridges just to put 2 two of quadrangular pyramid metal trusses stand-by; Adopt high temperature brazing that three metal deckings 1 are successively welded together with two metal trusses 2 respectively at last, constitute double-layer hollow pyramid dot matrix sandwich, as shown in Figure 1;
The preparation of the compound of step 2, high strength RPC 3: with 52.5# cement, silicon ash, quartz sand, polycarboxylate water-reducer and steel fibre powder is that raw material mixes and mechanical agitation 8min, obtains the compound of high strength RPC 3; Wherein the silicon ash accounts for 15% of cement and silicon ash gross mass, the mass ratio that water and cement add the silicon ash is 0.18:1, the mass ratio that quartz sand and cement add the silicon ash is 1.2:1, and the steel fibre volume accounts for 3% of compound cumulative volume, and the polycarboxylate water-reducer quality accounts for 0.8% of compound gross mass;
Embodiment 3:
The preparation method of the low-cost concreting two-layer composite of a kind of lightweight of present embodiment plate armour, step is as follows:
The preparation of step 1, double-layer hollow pyramid dot matrix sandwich: it is smooth to adopt planisher that thickness is that the aluminium alloy plate of 1.5mm carries out, and carries out blasting treatment then, and it is stand-by to obtain 1 three of metal deckings; Again the thick aluminum alloy plate materials for 1.5mm after the annealing in process is adopted perforation to shear and expand the metal otter board that obtains at least two equally distributed diamond shaped mesh, it is smooth to adopt planisher that metal otter board is carried out then, adopt again hydraulic press by angle be the punching press on the diamond hole of metal otter board of 60 ° square pyramid space grid mould obtain to remove bottom ridges just to put 2 two of quadrangular pyramid metal trusses stand-by; Adopt high temperature brazing that three metal deckings 1 are successively welded together with two metal trusses 2 respectively at last, constitute double-layer hollow pyramid dot matrix sandwich, as shown in Figure 1;
The preparation of the compound of step 2, high strength RPC 3: with 52.5# cement, silicon ash, quartz sand, polycarboxylate water-reducer and steel fibre is that raw material mixes and mechanical agitation 15min, obtains the compound of high strength RPC 3; Wherein the silicon ash accounts for 5% of cement and silicon ash gross mass, the mass ratio that water and cement add the silicon ash is 0.12:1, the mass ratio that quartz sand and cement add the silicon ash is 0.5:1, and the steel fibre volume accounts for 5% of compound cumulative volume, and the polycarboxylate water-reducer quality accounts for 0.5% of compound gross mass;
Claims (9)
1. the low-cost concreting two-layer composite of lightweight plate armour, it is characterized in that: comprise the metal decking group, be fixed on just putting quadrangular pyramid metal truss group (2) and be cast in the metal decking group and just putting RPC (3) between quadrangular pyramid metal truss group (2) between the metal decking group, described metal decking group is made up of three metal deckings (1) of order setting from top to bottom, per two adjacent metal panels (1) respectively with and metal decking (1) be angled that the upper and lower of just putting quadrangular pyramid metal truss group (2) of θ is fixing to constitute double-layer hollow pyramid dot matrix sandwich, in described double-layer hollow pyramid dot matrix sandwich, built RPC (3).
2. the low-cost concreting two-layer composite of lightweight according to claim 1 plate armour, it is characterized in that: described metal decking (1) is general steel plate, corrosion resistant plate or the aluminium alloy plate that the surperficial thickness that has carried out blasting treatment in advance is not less than 0.5mm, and the spacing between adjacent two metal deckings (1) is not less than 5mm.
3. the low-cost concreting two-layer composite of lightweight according to claim 1 plate armour, it is characterized in that: the described quadrangular pyramid metal truss group (2) of just putting is just put the quadrangular pyramid metal truss for what remove bottom ridges, the rib of each four jiaos of pyramid is thick to be 0.4mm-8mm, and its material is common iron, stainless steel or aluminium alloy material.
4. the low-cost concreting two-layer composite of lightweight according to claim 3 plate armour is characterized in that: folded angle θ is 10 °-80 ° between the described quadrangular pyramid rib of just putting quadrangular pyramid metal truss group (2) and the metal decking (1).
5. the preparation method of the low-cost concreting two-layer composite of each described lightweight of claim 1 to 4 plate armour is characterized in that: comprise the steps:
Step 1: at first adopt planisher to carry out smooth to sheet metal, blasting treatment then, obtain three metal deckings (1), again the sheet metal after the annealing in process is adopted perforation to shear and expand the metal otter board that obtains at least two equally distributed diamond shaped mesh, adopt planisher to carry out smooth then to metal otter board, adopt afterwards hydraulic press by the punching press on the diamond hole of metal otter board of square pyramid space grid mould obtain two remove bottom ridges just put quadrangular pyramid metal truss group (2), adopt high temperature brazing or Laser Welding that three metal deckings (1) are successively welded together with two top and bottoms of just putting quadrangular pyramid metal truss group (2) respectively at last, constitute double-layer hollow pyramid dot matrix sandwich;
Step 2: with water, high-mark cement, silicon ash, quartz sand, high efficiency water reducing agent and steel fibre or iron powder is that raw material mixes and mechanical agitation 3-15min by default proportioning, obtains the compound of RPC (3);
Step 3: RPC (3) compound that obtains in the step 2 is built in the hollow-core construction of the double-layer hollow pyramid dot matrix sandwich that obtains in progressive rapid 1, leave standstill again, after the maintenance, obtain the armoring finished product of the low-cost concreting two-layer composite of lightweight.
6. preparation method according to claim 5, it is characterized in that: the metal otter board thickness that quadrangular pyramid metal truss group (2) is just being put in the described preparation of step 1 is not less than 0.5mm, the length of the short diagonal of each diamond-shaped meshes is 2mm-30mm, and the length of its long-diagonal is 4mm-70mm.
7. preparation method according to claim 5, it is characterized in that: in the described compound of step 2, the silicon ash accounts for the 5-30% of high-mark cement and silicon ash gross mass, the mass ratio that water and high-mark cement add the silicon ash is 0.12-0.22:1, the mass ratio that quartz sand and high-mark cement add the silicon ash is 0.5-1.5:1, steel fibre or iron powder volume account for the 1-10% of compound cumulative volume, and the high efficiency water reducing agent quality accounts for the 0.5-3% of compound gross mass.
8. preparation method according to claim 7 is characterized in that: described high efficiency water reducing agent is a polycarboxylate water-reducer.
9. preparation method according to claim 5 is characterized in that: step 3 is described to leave standstill to leaving standstill 4-24h in the constant temperature and humidity curing box under the normal temperature; Maintenance is: respectively behind the rapid curing 4-24h, be incubated 4-24h again in 200-300 ℃ of xeothermic baking oven in 0-60 ℃ and the 70-90 ℃ of waters.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661197A (en) * | 2018-06-21 | 2018-10-16 | 中国人民解放军61489部队 | A kind of steel pipe Ceramic Balls Basalt fiber concrete protective plate of anti-bomb penetration |
| CN109357807A (en) * | 2018-09-17 | 2019-02-19 | 北京理工大学 | Pressure testing system and method in a kind of ultrahigh speed penetration Under Concrete target |
| CN112461050A (en) * | 2020-12-12 | 2021-03-09 | 江西洪都航空工业集团有限责任公司 | Bulletproof armor containing metal lattice structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102865777A (en) * | 2012-09-14 | 2013-01-09 | 西安交通大学 | Concrete-poured sandwich metal plate type composite armor and manufacture method thereof |
| CN102909908A (en) * | 2012-10-26 | 2013-02-06 | 西安交通大学 | Pyramidal lattice metal and epoxy resin matrix damping composite structure and preparation method thereof |
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2013
- 2013-04-02 CN CN2013101140508A patent/CN103213329A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865777A (en) * | 2012-09-14 | 2013-01-09 | 西安交通大学 | Concrete-poured sandwich metal plate type composite armor and manufacture method thereof |
| CN102909908A (en) * | 2012-10-26 | 2013-02-06 | 西安交通大学 | Pyramidal lattice metal and epoxy resin matrix damping composite structure and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661197A (en) * | 2018-06-21 | 2018-10-16 | 中国人民解放军61489部队 | A kind of steel pipe Ceramic Balls Basalt fiber concrete protective plate of anti-bomb penetration |
| CN109357807A (en) * | 2018-09-17 | 2019-02-19 | 北京理工大学 | Pressure testing system and method in a kind of ultrahigh speed penetration Under Concrete target |
| CN112461050A (en) * | 2020-12-12 | 2021-03-09 | 江西洪都航空工业集团有限责任公司 | Bulletproof armor containing metal lattice structure |
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Application publication date: 20130724 |