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第65章 驯服这匹“野马”

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    第65章驯服这匹“野马”(第1/2页)
    孙卫国以为自己听错了,瞪大了眼睛:“林副科长,你开什么玩笑?这钢你也看见了,硬度极不均匀,脆性大得吓人。别说做齿轮了,就是做秤砣都嫌它脆!这就是一炉炼废了的高碳钢!”
    “谁说是高碳钢?”
    林娇玥嚼碎了奶糖,目光扫过孙卫国手里的化验单,“孙科长,咱们厂的化验室,只能测碳硫磷锰硅这五大元素吧?”
    “对啊,这还不够吗?”孙卫国被问得一愣。
    “不够。”林娇玥走到那台闲置的进口光谱仪前——这玩意儿因为没人会调校,一直当摆设放在角落里吃灰。
    她伸手在仪器外壳上抹了一把灰,转头看向赵卫国:“厂长,如果我没猜错,鞍钢那边为了提高强度,在炼钢的时候加了一种他们自己都拿不准量的东西——废钢。”
    “废钢?”赵卫国愣住了。
    “确切地说,是日伪时期留下的坦克履带或者装甲板的残片。”林娇玥声音平稳,却像一颗钉子扎在众人心上,“那些残片里,含有我们现在急缺的铬和钼。”
    周围一片哗然。
    工人们面面相觑,不懂这代表什么。但孙卫国是懂技术的,他猛地倒吸一口凉气:“你是说……这批钢里混进了合金元素?”
    “不仅混进了,而且因为没有针对性的热处理,这些合金元素在钢材内部形成了极其复杂的碳化物硬点。”林娇玥指着地上的断裂钢锭,“刘师傅觉得硬,是因为刀头正好切在了这些硬点上;觉得软,是因为切到了基体组织。这就好比在一锅粥里混进了铁豆子,谁喝谁崩牙。”
    “这种特性,在材料学上有个名字。”
    林娇玥顿了顿,目光变得锐利起来,“空气硬化钢。”
    “空气硬化钢?”
    孙卫国跟在林娇玥身后,一边快步走向那台布满灰尘的苏式退火炉,一边还在小声嘀咕着这个陌生的名词。
    这词儿对于五十年代的技术科长来说,新鲜得像刚出锅的列巴。他一边追,一边还在翻那本被油污浸透了角的《金属材料学》,“这不对路啊,林工。书上黑纸白字写着,想实现空气淬硬,铬、钼、钨这几样宝贝疙瘩,一样都不能少。我刚从化验室回来,这批鞍钢送来的料,除了锰和碳高得离谱,剩下的啥都没有。”
    林娇玥猛地刹住脚。
    孙卫国差点一头撞在她那件列宁装的后背上。
    她转过身,手里还捏着那块刚才崩断了合金刀头的废钢。只有巴掌大的一块铁疙瘩,沉甸甸的,断口参差不齐,泛着一股子凶厉的青灰色。
    跟这帮搞了一辈子传统工艺的老爷们讲CCT曲线(连续冷却转变曲线),无异于对牛弹琴。她得换个法子。
    “孙科长,见过草原上的野马吗?”
    林娇玥把那块钢往孙卫国手里一塞,凉意顺着掌心钻进去。
    “鞍钢那边的同志心急,想让这钢硬度上去,就拼命往里填‘锰’和‘碳’。这就好比给马喂了太多的精料。料是足了,马也有劲儿了,可性子野了。”
    她伸出手指,在钢材那粗糙得像锉刀一样的断口上划了一下:“刚才崩刀、打滑,那是这匹烈马在尥蹶子。它身体里的劲儿没处使,乱窜,稍微一碰就炸毛。”
    “那……那有的地方软得像豆腐又是咋回事?”刘师傅把沾满机油的手在围裙上蹭了蹭,凑过来插嘴。
    “那是料没拌匀,有的地方吃撑了,有的地方还饿着。”林娇玥拍了拍手上的铁屑,“你们按老规矩车、钻、铣,那就是想拿普通的麻绳去套野马。结果呢?不是绳子断了,就是让人家给甩下来。”
    (本章未完,请点击下一页继续阅读)第65章驯服这匹“野马”(第2/2页)
    刘师傅听得一愣一愣的,大腿一拍:“嘿!这比喻绝了!我算是听明白了,合着这钢是个‘顺毛驴’,得哄着来?”
    “对,得哄。”
    林娇玥转过身,目光穿过嘈杂的车间,落在了角落里那台庞然大物上。
    那是一台苏式井式退火炉。帆布罩子上积了厚厚一层灰,那是苏联专家撤走后留下的“遗孤”,全厂没人敢动,也没人会动。
    “咱们不能跟它硬碰硬。”林娇玥的声音不大,在轰隆隆的机器声里却显得格外清晰,“得给它降火。不仅要降火,还得给它做个全身按摩,把它身体里那股子乱窜的邪火,一点点揉顺了。”
    孙卫国眼睛猛地瞪圆了,喉结上下滚动了一下:“退火?你是说……等温球化退火?”
    这词儿他在苏联专家的笔记里见过,但也只是见过。据说那得要最精密的控温设备,还得有经验最丰富的老师傅盯着,稍微差个几度,一炉子钢就全废了。
    “林工,这……这玩意儿咱们玩不转吧?”车间主任老王看着那台落满灰尘的大家伙,心里直打鼓,脸上的肉都
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