利用炉渣研制轻质混凝土小型空心砌块

该课题是利用炉渣生产轻质混凝土小型空心砌块，由于炉渣经水淬，内部形成许多空隙，质轻是它的优点，而空隙小，吸水率大是它的缺点，要使砌块达到国家标准，必须在克服上述缺点上下功夫。经过几十次小型试验，首先选择了与炉渣配合的材料，胶凝材料及外加剂，找到它们之间的配比关系，经过试验，得到结果。     

Research on C3N4 Superhard Compound Thin Film and Its Application

By combination of DC reactive magnetron sputtering with multiple arcplating, the alternating C3N4/TiN compound film is deposited onto HSS. The core level binding energy and contents of carbon and nitrogen are characterized by X-ray photoelectron spectrum. X-ray diffraction (XRD) shows that compound thin film contains hard crystalline phases of α-C3N4 and β-C3N4.The Knoop microhardness in the load range of 50.5-54.1GPa is measured. According to acoustic emission scratch test, the critical load values for the coating on HSS substrates are in the range of 40-80N. The metal coated with C3N4/TiN compound films has a great improvement in the resistance against corrosion. Many tests show that such a coating has a very high wearability. Compared with the uncoated and TiN coated tools, the C3N4/TiN coated tools have a much longer sutting life.     

我科学家发明“凝石”技术 废渣变为优质“水泥”

我国科学家发明了一种仿地成岩的新型建筑胶凝材料——“凝石”。这种将冶金渣、粉煤灰、煤矸石等各种工业废弃物磨细后再“凝聚”而成的“石头”，与寻常水泥相比，在强度、密度、耐腐蚀性、生产成本和清洁生产等许多方面表现十分突出。     

提高凝结水泵变频运行经济性的措施

采用变频器调速是工业领域降低电耗最重要的措施之一,而交流变频调速技术以其卓越的调速性能、显著的节电效果和在工业领域的广泛适用性,已被公认为是一种最有价值的调速和降低电耗的方式.     

控制馏出液体积 降低对原样品的检出限

文章探讨对氰浓度低于1/2最低检出限的样品，通过控制接收馏出液体体积来降低对原始样品的检出限。