论文部分内容阅读
电磁结晶器＊半连续铸造开始阶段的特点是铸锭与引锭器热接触状态下铸锭结晶制度尚未完全确定。就可能形成热裂纹和铸锭底部翘曲来说,这个阶段最为重要。底部翘曲变形部分,在压延前必须切除。为使此阶段铸造制度合理化,需要有关于在铸锭-引锭器接触系统中形成温度-变形状态基本规律的成套实验资料。为了上述目的,拟制了一整套方法①,保证把使用电磁结晶器时凝固的热物理条件变化的工艺过程基本参数记录下来。为了说明电磁结晶器铸造扁铸锭的凝固特点,研究了85毫米/分工艺铸造速度下各种生产制度铸锭底部的温度场(采用插入热电偶法-图1)。研究是在工业条件下使用Д16标准
Electromagnetic Crystallizer * Semi-continuous casting at the beginning of the stage is characterized by ingot ingot and ingot thermal contact ingot crystallization system has not yet been fully determined. This stage is most important in terms of possible hot cracking and ingot warpage. Bottom warp deformation, must be removed before rolling. In order to rationalize the casting system at this stage, a complete set of experimental data on the basic rules of temperature-deformation state required in the ingot-starter contact system is needed. For the above purpose, a set of methods has been developed to ensure that the basic parameters of the process for changing the thermophysical conditions of the solidification during the use of the electromagnetic crystallizer are recorded. In order to illustrate the solidification characteristics of cast ingot cast by electromagnetic mold, the temperature field at the bottom of cast ingot of various production systems at 85 mm / min casting speed was studied (using the insert thermocouple method - Figure 1). The study is using the Д16 standard under industrial conditions