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铸造 1959年第11期 37-40页

熔模精密铸造在世界各国都已获得广泛运用,因为这种工艺方法能得到精度高和光洁度好的铸件.然而,目前广泛采用的制模材料(下面简称模料)——石腊硬脂酸混合料(简称腊料),尚存在一定的缺点,阻碍了这种新工艺的应用和推广。这种腊料之缺点... 详细信息

熔模精密铸造在世界各国都已获得广泛运用,因为这种工艺方法能得到精度高和光洁度好的铸件.然而,目前广泛采用的制模材料(下面简称模料)——石腊硬脂酸混合料(简称腊料),尚存在一定的缺点,阻碍了这种新工艺的应用和推广。这种腊料之缺点是:熔点较低(4550~。C),塑性较大(随温度之升高而增大),强度较小(69公斤/厘米2),收缩较大(23%)以及光洁度较差等。因此,降低了铸件的精度及光洁度,限制了它的使用范围,尤其是在炎热的夏天和我国南部地区,带来更多的困难。

关键词：模料硫酸盐熔点压型硫化合物熔解温度 lsy 精密铸造熔模铸造制模

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HEMOGLOBIN WUMING (all [A9] lsy→Gln), A NEW HEMOGLOBIN VARIANT FOUND IN CHINA

引用

Chinese Science Bulletin 1982年第10期27卷 1135-页

作者：曾溢滔黄淑帧陈美珏周霞娣从建平冯际平李敏跃梁徐龙桂芳唐智宁杨学庸场天栏朱定尔 Laboratory of Medical Genegics Shanghai Children's Hospital Guangxi Medical College Nanning Institute of Haemotology Chinese Academy of Medical Sciences Tianjin Department of Biochemistry

During the survey of hemogiobinopathies, a fast moving hemoglobin was found in one Chinese male of Zhuang nationality in Wuming County of tire Zhuang Autonomous Region of Guangxi. Same electrophoretic bands were found in seven persons in his family. The propositus was healthy in appearance, having no clinical symptom at all and being normal also in haemotology. The abnormal hemoglobin in his hemolysate was evaluated by cellulose acetate membrane electrophoresis and found to be 19.4%. Isolation of the globin chains was performed by CM-cellulose chromatography in 8M urea and one fast chain (a^x chain)