CN1429148A - 装甲复合材料 - Google Patents
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Abstract
推荐一种装甲复合材料,以改善多次打击性能。该材料包括至少一个朝向受威胁侧的、设置在第一基体层上的正面层和一背向受威胁侧的背面层和一设置在正面层与背面层之间的支承层,正面层由许多相邻的,相互形锁合地连接的正面层块组成。支承层由许多支承层块组成,其中支承层块具有平行于正面层的面积,它等于或小于平行于正面层的正面层块的面积。
Description
本发明涉及一种装甲复合材料,它至少包括一朝向受威胁一侧的、设置在第一基体层上的、由许多相邻的形锁合地相互连接的正面层块组成的正面层以及一背向受威胁一侧的背面层和一设置在正面层和背面层之间的支承层。
这种类型的装甲复合材料用来在例如装甲车辆中抵御射击和爆炸物爆炸,或用来在火车站、飞机场或公共建筑物中保护人员和/或物体。
例如DE-A-3937087公开了一种配备装甲的构件,其中装甲板安装在一种轻质支承元件上,并在其正面设有覆盖层。装甲板由一种陶瓷复合板组成,它在其背面具有一由芳族聚酰胺或玻璃纤维加强的塑料组成的基体层,支承元件可以由轻质材料,如铝、木材等等组成,或由带有空腔的物体、如钻孔板或硬泡沫材料制成。用这种装甲板可以达到良好的防护效果。
WO96/29561公布了一种多层装甲防护材料,它由一种可选择的单件或多件的陶瓷或金属正面层和一种连接在它后面的硬的防护层构成。在这份资料中采用一种人造树脂层压(胶合)板材作为支承层。其次可给人造树脂层压板层在背向正面装甲层的一侧上配置另一层,它特别由装甲钢板、硬铝材料、钛合金、玻璃纤维增强塑料(GFK)或芳族聚酰胺层压材料(Aramidlaminat)构成。用这种结构可以提供一种多层装甲防护材料,它轻、抗弯强度好并且价格便宜,在大载荷和特别是在冲击区周围实际上不会产生分层,此外还可以吸收能量。
在按DIN EN 1522进行材料的射穿阻滞性能试验时作为附加条件考虑一等边三角形的(弹点)分布图(Trefferbild),以试验装甲的多次打击性能。根据目前所适用的规则三角形的边长应该为120±10mm。
按照WO96/29561用其中所公开的装甲复合材料与采用玻璃纤维增加塑料层代替人造树脂层压板层的结构相比可以改善承受多次打击的能力。在WO96/29561中猜测,允许的分布间距与普通结构形式的优化的陶瓷-玻璃纤维增强塑料和/或芳族聚酰胺复合材料相比可以减小到约一半。但是WO96/29561绝不包含试验结果,因此不可能有对于其中所公开的结构实际上能够达到的多次打击性能作出的结论。
对装甲的防护性能所提出的要求越来越高,并且不能排除将来在等边三角形的分布图方面提出更小边长的规定条件,最近已经在讨论45mm的边长。
因此本发明的目的是,提供一种装甲复合材料,它具有更好的多次打击性能,并且考虑到了对于具有更小分布间距的分布图的要求。
这个目的用这样一种开头所述类型的主题来实现,其中支承层由许多支承层块组成,并且其中支承层块具有一个平行于正面层的表面(面积),它等于或小于平行于正面层的正面层块的面积。
支承层块特别是这样地设置在正面层块之下,使它们的边缘相互对齐。其中在一个正面层块之下可以分别设置一个支承层块,它具有和正面层块相同的面积,其中两个块在其边缘方面相互对齐。但是在一个正面层块之下也可以设置由两个或多个支承层块组成的组,它们具有和正面层块相同的总面积,其中支承层块的组以其边缘与正面层块的边缘对齐。
用于正面层块的第一基体层可以由厚度较小的纤维增强塑料,如芳族聚酰胺层压板,玻璃纤维增强塑料或聚乙烯层压板组成。优先采用芳族聚酰胺层压板,它例如由埋入一弹性体基体内的二或三层芳族聚酰胺丝的织物层组成。也可以采用单一的层压织物层。正面层块可以用粘接剂,例如基于聚氨酯的粘接剂,粘接在基体层上。支承层块也可以设置在基体层上,基体层例如可以由纤维增强的塑料、塑料薄膜或玻璃纤维织物组成,它可以有利地配备成单面自粘接的,以便将支承层块直接固定在它上面。但是也可以放弃用于支承层块的单独的基底层,并例如用一种粘接剂将它直接固定在背面层上,对于背面层—也称为背衬—可以选用一种纤维复合材料,特别是芳族聚酰胺层压板,它由许多由芳族聚酰胺丝组成的织物层组成,其一面或两面用一种弹性体材料,一种树脂,例如酚醛树脂,或一种热塑性材料涂覆,接着压合。
正面层块可以在朝向受威胁的一侧上设置覆盖层,例如层压上去的铝、玻璃或芳族聚酰胺织物覆盖层。
第一基体层连同在某些情况下设有覆盖层的正面层块可以借助于粘接剂与贴在第二基体层上的支承层块结合,而第二基体层则与背面层结合。
正面层块优先以瓷砖的形式存在。在正方形瓷砖的情况下瓷砖尺寸应为20×20mm至100×100mm,最好为20×20mm至50×50mm。也可以采用三角形、六边形或矩形瓷砖。如果采用正方形瓷砖,它例如具有分别为30×30mm的朝向受威胁一侧的横截面面积,那么支承层块按照本发明同样具有尺寸为30×30mm的正方形形状。但是它也可以具有比瓷砖小的面积,例如在尺寸为30×30mm的瓷砖下设置两块支承层,它们分别具有15×30mm的横截面面积,在一块瓷砖之下也可以设置两块以上支承层块,例如在尺寸为30×30mm的瓷砖之下设置三块尺寸为10×30mm的支承层块。在构成正面层的瓷砖和支承层块尺寸相同的情况下在本发明特别优良的结构中每个支承层块这样地直接放置在瓷砖之下,使得支承层块的边缘与瓷砖边缘对齐。从而使每块瓷砖正好配设一个支承层块,它与其它瓷砖没有直接接触。
如果选择小于瓷砖的支承层块,那么其大小应该这样选择,使得结合成一个组的支承层块的面积相当于瓷砖的面积,并且支承层块组可以这样地设置在瓷砖之下,使组的边缘与瓷砖的边缘对齐,因此每块瓷砖配设一个支承层块组,它不与其它瓷砖直接接触。
实际表明,在由在背面的背衬上的一层瓷砖组成的典型装甲受到多次射击时,在第二或第三次射击的分布间距很小的情况下装甲不再能经受得住—即使各次射击不是命中同一块瓷砖。这是因为,背衬在受到第一次射击以后便拱起,从而使相邻的瓷砖不再具有必要的稳定性,并不再支承在背衬上,以经受另一次射击。如开头所述,在现有技术中建议,在正面层之下设一加强层作为支承层。但是实际表明,即使这种措施也不足以经受具有例如边长大致小于50mm的等边三角形形状的分布图的射击。这个问题可以令人惊讶地用本发明的主题解决。
如果不用瓷砖作为正面层块,而是用高硬块的钢块,那么多次打击性能不够的问题便变得无足轻重,因为这种结构在多次射击时与具有瓷砖的结构相比具有更好的性能。但是采用钢作为正面层材料的结构与具有陶瓷的结构相比有这样的缺点,它重得多。本发明也有利地在这方面采取了措施。通过按本发明在正面层和背衬之间设置分块的支承层,构成正面层的钢块的材料厚度可以减小,而不使多次打击性能变差,但是达到有利的重量减轻。
为了本发明的目的支承层块应该由轻的刚性好的材料组成,对此这样一种材料特别适合,它由上下两块薄板组成,它们通过蜂窝状结构的筋相互连接。这种也用于飞机制造中的材料的特征是,重量轻,同时刚性又好。这种蜂窝结构通常由像铝、纸这样的材料与芳族聚酰胺或碳素纤维或玻璃纤维增强的塑料组成。除具有蜂窝结构的材料外对于支承层决也可以采用实心材料,例如由聚碳酸酯组成的实心塑料板或木板。支承层块的厚度应该在2至10mm之间。
下面借助于附图和实施例对本发明作较详细的说明和阐述。其中表示:
图1以横截面示意表示按本发明的装甲复合材料的结构。
图2正面层的俯视图。
在图1中附图标记10表示按本发明的装甲复合材料。它由一朝向受威胁一侧的,这里通过箭头1表示的正面层2组成,该正面层由许多相邻的相互连接的正面层块3构成。正面层块3设置在第一基体层4上,附图标记5表示支承层,按照本发明它由支承层块6组成。支承层块6贴在第二基体层7上。在第二基体层7上连接一背向受威胁一侧1的背面层8,即背衬。
图2表示按图1箭头1方向的正面层2的俯视图。正面层2例如由9块正方形正面层块3构成。用于正面层块3的第一基体层4在这个图示中略去,以便表示支承层块6’和6”例如相对于正面层块3可以如何布置。支承层块6’和6”的面积分别为正面层块3的面积的一半。交替地在一个正面层块3之下设置两个支承层块6’,在相邻的正面层块之下设置两个支承层块6”。支承层块6’和6”相互相对转过一90°的角度。两个支承层块6’构成一组,并这样地设置在正面层块3之下,使它与正面层块齐平。对于两个支承层块6”也一样。
例1:
按本发明的装甲复合材料的射穿阻滞性能按DIN EN 1522进行检验。复合材料由一种在第一基体上的由尺寸为30×30mm的瓷砖构成的8.5mm厚的陶瓷和一种5mm厚且以尺寸为30×30mm的块的形式存在的蜂窝体组成,该第一基体由一种由TWARON—织物T750组成的双层芳族聚酰胺层压板组成。这种支承层块固定在一层作为基体的自粘接玻璃纤维织物上。背衬由一种18层芳族聚酰胺层压板(TWARON—层压板T750涂胶)组成。复合材料厚度为24.5mm,而单位面积重量为471.9g/dm2。
在以下条件下进行检验:
口径: 7.62mm×51
子弹类型: VMS/HK(FNB)(实心外壳尖头/硬核)
子弹质量: 9.75g
武器: Messlauf,螺旋长度254mm
枪筒长度: 658mm
射击距离: 10m
附加条件: 分布间距1/2=40mm
分布间距1/3=40mm
分布间距2/3=35mm
编号 速度V(7.50) 能量E(7.50) 射穿
1 824m/s 3310J(焦耳) 没有
2 828m/s 3342J 没有
3 825m/s 3318J 没有
上述数据证明,按本发明的装甲复合材料即使在非常小的分布间距时-此外其中1号和3号还是特别难以经受的击中接缝—也具有突出的性能,并满足DINEN1522阻滞级FB7-NS的要求。
例2:
按DIN EN 1522检验按本发明的另一种装甲复合材料的射穿阻滞性能。复合材料由一种由设置在第一基体上的由尺寸为25×25mm的瓷砖构成的9mm厚的陶瓷(层)和一5mm厚且以25×25mm尺寸的块的形式存在的Corlight型蜂窝体材料组成,该第一基体由一双层芳族聚酰胺层压板组成。蜂窝体材料由一由玻璃纤维织物制的上板和下板连同设置在它们之间的纸质蜂窝体组成。这些支承层块固定在一层作为基体的自粘接玻璃纤维织物上。背衬由18层的芳族聚酰胺层压板组成。瓷砖在受威胁一侧的方向上设有一层玻璃纤维织物,复合材料的厚度为25mm,而单位面积重量为501.2g/dm2。
在以下条件下进行检验:
口径: 7.62mm×51
子弹类型: HKFNB(实心外壳尖头/硬核)
子弹质量: 9.75g
武器: Messlauf,螺旋长度254mm
枪筒长度: 658mm
射击距离: 10m
附加条件: 分布间距1/2=35mm
分布间距1/3=35mm
分布间距2/3=32mm
编号 速度V(7.50) 能量E(7.50) 射穿
1 817m/s 3254J 没有
2 820m/s 3278J 没有
3 821m/s 3286J 没有
本发明按例2的装甲复合材料即使在非常小的分布间距时也具有突出的性能,并满足DIN EN 1522阻滞级FB7-NS的要求。
比较举例
按照DIN EN 1522对装甲复合材料的射穿阻滞性能进行检验。复合材料由一8.5mm厚的陶瓷和一5mm厚未分块的蜂窝体组成,陶瓷由尺寸为30×30mm的瓷砖构成,它贴在由双层芳族聚酰胺层压板组成的第一基体上。背衬由一18层的芳族聚酰胺层压板组成。在受威胁一侧的方向瓷砖设有一层玻璃纤维—环氧树脂。复合材料的厚度为24.4mm,而单位面积重量为463.4g/dm2。
在以下条件下进行检验:
口径: 7.62mm×51
子弹类型: VMS/HK(FNB)(实心外壳尖头/硬核)
子弹质量: 9.75g
武器: Messlauf,螺旋长度254mm
枪筒长度: 650mm
射击距离: 10m
附加条件: 分布间距1/2=40mm
分布间距1/3=40mm
分布间距2/3=40mm
编号 速度V(7.50) 能量E(7.50) 射穿
1 855m/s 3564J 没有
2 828m/s 3342J 有
3 818m/s 3262J 没有
对比例子的装甲材料显示在具有边长为120mm的等边三角形的分布图时虽然没有射穿,但是上面的数据证明,虽然具有支承层但是却没有分块的装甲复合材料在分布间距小时没有足够的击穿性能,从而不具备要求的有利的多次打击性能。
Claims (17)
1.装甲复合材料(10)至少包括一个朝向受威胁一侧(1)的、设置在第一基体层(4)上的正面层(2)和一背向受威胁侧(1)的背面层(8)以及一设置在正面层(2)和背面层(8)之间的支承层(5),正面层由许多相邻的相互形锁合地连接的正面层块(3)组成,其特征为:支承层(5)由多个支承层块(6)组成,其中支承层块(6)具有平行于正面层(2)的面积表面,它等于或小于平行于正面层(2)的正面层块(3)的面积。
2.按权利要求1所述的装甲复合材料,其特征为:支承层块(6)这样地设置在正面层块(2)之下,使它们在其边缘处相互对齐。
3.按权利要求1或2所述的装甲复合材料,其特征为:在一块正面层块(3)之下分别设置一支承层块(6),它和正面层块(2)具有相同的面积。
4.按权利要求1所述的装甲复合材料,其特征为:在一块正面层块(3)之下设置一由两个或几个支承层块(6)组成的组,它具有和正面层块(3)相同的总面积,并且其中支承层块(6)的组以其边缘齐平地与正面层块(3)的边缘相配。
5.按权利要求1至4任一项或几项所述的装甲复合材料,其特征为:用于正面层块(3)的第一基体层(4)由小厚度的纤维增强材料组成。
6.按权利要求5所述的装甲复合材料,其特征为:第一基体层(4)由一芳族聚酰胺层压板,一玻璃纤维增强的塑料或聚乙烯层压板组成。
7.按权利要求1至6任一项或几项所述的装甲复合材料,其特征为:支承层块(6)设置在一第二基体层(7)上。
8.按权利要求7所述的装甲复合材料,其特征为:用于支承层块(6)的第二基体层(7)由一种纤维增强的塑料、塑料薄膜或玻璃纤维织物组成。
9.按权利要求1至8任一项或几项所述的装甲复合材料,其特征为:正面层块(3)是瓷砖或小钢板。
10.按权利要求1至9任一项或几项所述的装甲复合材料,其特征为:正面层块(3)和支承层块(6)具有正方形、矩形、三角形或六边形的形状。
11.按权利要求1至10任一项或几项所述的装甲复合材料,其特征为:支承层块(6)由一种轻的刚性好的材料组成。
12.按权利要求1至11任一项或几项所述的装甲复合材料,其特征为:支承层块(6)由设置在上下薄板之间的蜂窝结构组成。
13.按权利要求1至12任一项或几项所述的装甲复合材料,其特征为:背面层(8)由一种纤维复合材料组成。
14.按权利要求1至13任一项或几项所述的装甲复合材料,其特征为:背面层(8)由一种芳族聚酰胺层压板组成。
15.按权利要求1至14任一项或几项所述的装甲复合材料,其特征为:正面层块(3)粘接在第一基体层(4)上,支承层块(6)粘接在第二基体层(7)上。
16.按权利要求1至15任一项或几项所述的装甲复合材料,其特征为:带有正面层块(3)的第一基体层(4)借助于粘接剂和贴在第二基体层(7)上的支承层块(6)连接,并且第二基体层(7)借助于粘接剂与背面层(8)连接。
17.按权利要求1至16任一项或几项所述的装甲复合材料,其特征为:正面层块(3)在朝向受威胁侧(1)上设有一个覆盖层。
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DE10023181 | 2000-05-11 |
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US (1) | US6792843B2 (zh) |
EP (1) | EP1284856B1 (zh) |
JP (1) | JP2003532561A (zh) |
KR (1) | KR100761233B1 (zh) |
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AU (2) | AU7399401A (zh) |
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BR (1) | BR0110687B1 (zh) |
CA (1) | CA2407977C (zh) |
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DE (1) | DE50101043D1 (zh) |
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JP2009002531A (ja) * | 2007-06-19 | 2009-01-08 | Kyocera Chemical Corp | セラミック複合装甲板の製造方法及び取付方法 |
CN102016489B (zh) * | 2008-03-06 | 2016-01-13 | 帝人芳纶有限公司 | 包括长形本体的防弹制品 |
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CN101881582B (zh) * | 2009-12-09 | 2015-03-25 | 湖南中泰特种装备有限责任公司 | 一种防刺防弹材料及制备方法 |
CN103388388A (zh) * | 2013-07-29 | 2013-11-13 | 中南大学 | 一种具有防弹防爆功能的墙面砖防护结构 |
CN103388388B (zh) * | 2013-07-29 | 2015-05-13 | 中南大学 | 一种具有防弹防爆功能的墙面砖防护结构 |
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