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第997章 提上日程(1 / 2)

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一群人陷入沉思,他们可以不相信自己的说,但是不得不相信杨戈的话。

从最初开始,杨戈一次一次打破他们的认知,让他们知道这世间竟然还有火枪,火炮和热气球这些他们都不曾想过的东西。

更建立研究所,学校,医院等从根本上改变北地民生的东西。

所以说杨戈的成功不是偶然,而是必然。

现代的知识加上古人的智慧,两者合二为一,才铸就了现在这么强大的幽州军。

“这复合弓当真有主公说的这么厉害?”班良可是曾经与贵霜的重骑兵有过接触,真的如同幽州军的这些重甲骑兵一般浑身铁甲,刀枪不入。

“复合弓工艺十分复杂,我也是从一统江东之后才让蓟城开始研究复合弓的。”杨戈说着在地上画出了一个简单的复合弓结构图。

“大家请看!我画的这个就叫做复合弓。他与现在我们使用的单弓不同,不仅短而且轻便,适合于马上作战。但是它两端往前弯曲,射出的箭矢力量更大,穿透力更强……”

杨戈指着地上的图形开始与众人科普关于复合弓的一些知识。

弓箭是复合型的远射武器。是由相互独立的两大部分即弓和箭构成的,箭又叫做矢或链。因为它是由多种材料共同制造而成的,因此也称为“复合弓”。

复合弓的制作工艺异常的复杂,主要以干、角、筋、胶、丝、漆等材料为主,以上六种材料合称“六材”。

干,包括多种木材和竹材;用以制作弓臂的主体,多层叠合。干材的性能,对弓的性能起决定性的作用。干材以柘木为上,次有檍木、柞树等,竹为下。

角,即动物角,制成薄片状,贴于弓臂的内侧(腹部)。制弓主用牛角,以本白、中青、未丰之角为佳;“角长二尺有五寸(近五十厘米),三色不失理.谓之牛戴牛”,这是最佳的角材(一只角的价格就相当于一头牛,故称之为牛戴牛)。

筋,即动物的肌腱,贴博于弓臂的外侧(背部)。筋和角的作用.都是增强弓臂的弹力,使箭射出时更加劲疾,中物更加深入。选筋要小者成条而长,大者圆匀润泽。

胶,即动物胶,用以粘合干材和角筋。胶的制备方法“一般是把兽皮和其他动物组织(特别是肌腔)放在水里滚煮,或加少量石灰碱,然后过滤、蒸浓而成。据后世制弓术的经验,以鱼组织、特别是腭内皮和鱼膘制得的鱼胶最为优良。

丝,即丝线,将傅角被筋的弓管用丝线紧密缠绕,使之更为牢固。择丝须色泽光鲜,如在水中一样。

漆,将制好的弓臂涂上漆,以防霜露湿气的侵蚀,而且要求择漆须色清。

复合弓不仅在制弓的材料上十分严格,对具体的工艺步骤也是有细致的规定。

取六材必以其时,六材既聚,巧者和之。”冬天剖析弓干,春天治角;夏天治筋,秋天合拢诸材。寒冬之时把弓臂置与弓匣之内定型,严冬极寒时修治外表。冬天剖析弓干木理自然平滑细密;春天治角,自然润泽和柔;夏天治筋,自然不会纠结;秋天合拢诸材,自然紧密;寒冬定弓体,张弓就不会变形;严冬极寒时胶、漆完全干固,故可以修治外表。春天装上弓弦,再藏置一年,方可使用。

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