Some Factors Influencing Analysis Results of MgO Content in Nodularizer 影响球化剂中氧化镁含量分析值的若干因素
Nodularization treatment using low RE-Mg nodularizer, the amount of which is from 1. 8% to 2. 2% in sandwich process. 化学成分为3.3~3.7%C,1.8~2.2%Si,Mn≤0.2%,P≤0.07%,S≤0.03%;采用低稀土镁球化剂球化处理,加入量1.8~2.2%,使用冲入法处理;
Determining MgO in the nodularizer 球化剂中氧化镁的测定
The results show: the addition of Al component into the Ni-graphite alloy indicates that Al element is not only an element that strengthens the alloy matrix, but also nodularizer that promotes the transition from flaky graphite to spheroidal graphite. 结果表明:在Ni-石墨合金中加入组元Al,一方面起到了对合金基体的强化作用,另一方面Al具有使片状石墨向球状石墨转变的作用。
The addition of rare earth-magnesium-ferrosilicon alloy used as nodularizer was of 1.0%~ 1.8%. 球化剂稀土镁合金的加入量为1.0%~1.8%。
Application of RE ( Y)-Mg-Si-Fe Nodularizer to the Large Sectioned High Ductility Nodular Iron Castings 钇基重稀土镁复合球化剂在铸态高韧性厚壁球铁件上的应用
The RE ( Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings. 应用钇基重稀土镁复合球化剂,铸造厚大断面高韧性球铁冷却壁,成功地获得了铸件中心部位铸态高性能。
The results also show that it is necessary to restrict Si of base iron within 1.2% in order to control graphite degeneration and improve mechanical properties, when the base iron melt is treated with 1.8% nodularizer contained Y and 0.4% inoculant contained Ba. 当钇基重稀土球化剂和含Ba孕育剂加入量分别为1.8%和0.4%时,原铁液硅含量控制在1.2%以内,有利于防止厚大断面球墨铸铁件石墨畸变,提高铸件力学性能。
A Discussion about Some Problems of Determination of Ineffective Magnesium in Nodularizer 对测定球化剂中无效镁若干问题的探讨
It has been discovered that the use of pure lanthanum as the primary rare earth source in the magnesium ferrosilicon nodularizer surprisingly further improves the performance of the ductile iron ladle treatment method compared to similar methods using cerium or mish metal beating nodularizers. 与使用含铈或含混合稀土的球化剂相比,使用加有纯镧的硅铁镁合金作为包内处理球化剂时,球铁的工艺性能得到令人惊奇的改善。
Application of Powder Compact Nodularizer 粉末压制成型球化剂的应用
An introduction was made to the chemical compositions of Mg-Si-Fe mixture lump as low-Si nodularizer and Mg-Si-Fe alloy nodularizer, as well as the application effects comparison between adding single Mg-Si-Fe alloy and adding composite of two types nodularizers. 介绍镁团块低硅球化剂和硅铁镁合金球化剂的化学成分,以及单一硅铁镁合金球化剂与两种球化剂复合使用效果的对比。
The results show that Al element is not only an element that strengthens the alloy matrix, but also a nodularizer that promotes the transition from flaky graphite to spheroidal graphite. 结果表明:Al不仅是强化合金基体的元素,而且是一种使片状石墨转变为球状石墨的球化剂;
Application of Rare Earth Compound Nodularizer to the φ 710 Nodular Iron Roller 稀土复合球化剂在φ710球铁轧辊上的应用