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零点看书吧 > 玄幻小说 > 大国军舰 > 正文 第六十一章 高强度钢材

正文 第六十一章 高强度钢材(第1页/共3页)

来的还是老熟人,庞建民和张震,他们的军舰没有出海,在港口停泊着,得到消息之后,两人就坐车过来了,后面的一辆老解放上,还坐着一批水兵,跳上潜艇,就是一通检查。

不过,运气不是随时都有的,类似上次的那种鱼雷已经没有了,只是随便找了一些潜艇的装置,秦涛也没很大方,直接就送给他们好了。

不过,两人并没有走,等到检查完潜艇的时候,虽然太阳已经落到了西边,两人依旧在造船厂走走看看,很快就看上了刘明刚送来的那批钢板。

“这也太薄了吧?”庞建民忍不住开口说道。

“各位都坐大船习惯了,你们看看,普通的快艇,其实就是这种厚度的钢板,我们给海关建造的缉私快艇,也是这种厚度的。”

“那不一样,接下来要建造的双体客轮,必须要达到军品的标准才行。”张震说道。

秦涛笑了笑:“当然知道,军品标准,质量绝对杠杠的,我这里有一份钢材的检测报告,你们要不要看看?”

“屈服度520兆帕,比我们的945钢还要高,这怎么可能?”看到报告的第一眼,张震就惊讶起来了。

屈服强度是衡量钢材的重要指标,用专业的话来说,屈服强度是金属材料发生屈服现象时的屈服极限,也就是抵抗微量塑性变形的应力。

用简单的话来解释,就是材料的强度,举例来说,低碳钢的屈服极限为207兆帕,当外界施加的压强大于这个数值的时候,这个低碳钢制造的零件就会产生永久变形,小于这个的,外力去掉之后,零件就会恢复原来的样子。

屈服强度越大,就意味着材料抗外力的能力越大,强度越高。

普通的民用船舶,有两三百兆帕的船用钢就足够了,但是军舰必须得结实一些。

当年,和老毛子关系亲密的时候,老大哥出口了专门的船用钢,等到关系破裂之后,国内只能咬紧牙,自己搞研发,首先是仿制老毛子的船用钢,研制了一批,比如说907,921之类的钢材,但是,这些钢材仿制了老毛子的成分,里面含有大量的镍铬。

老毛子的乌拉尔山区,就盛产镍矿和铬矿,但是国内少啊,所以,国内要研制无镍铬或者是低镍铬的钢材。

前些年的国内情况复杂,制造出来的钢材质量很差,甚至还差点发生事故(某潜艇用钢材居然不合格),进入八十年代之后,国内的炼钢企业,开始花费大量的精力搞研发。

首先研发出来了390兆帕的907A钢材,去年的时候,440兆帕的耐海水腐蚀和低温性能更好的945钢通过了鉴定,至于还在研发中的型号,有785兆帕级别的VHD402钢。(这款钢材在93年 『加入书签,方便阅读』
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