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联信攻克粘土砂再生新技术
2017-08-16 08:52:58 中国青年网
彰武县联信铸造硅砂有限公司科研人员在检测再生砂成份。
本报讯 记者年旭春报道 8月11日,彰武县联信铸造硅砂有限公司多个车间机器轰鸣,而设备厂旁的一个车间内却显得很安静,取而代之的是飞溅的焊花,工人在忙于再生砂生产线的建造。“工人现在在焊接平台铁架,待设备安装调试后即可投入再生砂生产。”公司副总经理李家波说。
李家波介绍,生产铸件难免产生铸造废砂,对大多数工厂来说,废砂多是直接倾倒或掩埋,这对环境有一定污染。2013年我国铸件产量超过4000万吨,产生铸造废砂约3000万吨。“如果能将铸造废砂翻新就好了,既解决了污染问题,又节省了新砂资源。”李家波说。
联信2014年开始再生砂项目研究。李家波说,废砂再生并非新课题,此前国内也有旧砂再生设备,但再生效果一般,适用性不强。在废砂再生领域,树脂砂再生是比较成熟的技术,而粘土砂和水玻璃砂再生一直是该领域的技术难题。
为了突破粘土砂再生技术难题,联信成立了再生砂项目研发中心。2015年2月,与武汉理工大学材料学院专家联合立项。专家团队在复合再生方式上做了新尝试,最后获得成功。“使用性能达到新砂水平,甚至在与铸造粘结剂的结合效率、整体膨胀率、发气量等方面均优于新砂,能够满足再次造型和制芯的需要。”李家波说。
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