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铁磁性造型材料的性能决定着磁型的强度和质量,以及磁型造型的能量容量。图1为ДСЛ1.5、ДСЛ08、ДЧЛ2.0、ДЧЛ05号丸粒(ГОСТ11964—66)磁感应强度B和相对导磁率μ相对与磁场强度H之间的关系曲线。测定是在БУ—3冲击装置的固定磁场内进行的。从图1可见,钢丸的磁性比铸铁丸的要高。高的去磁系数是由于松散材料与整
The properties of ferromagnetic modeling materials determine the strength and quality of the magnetic pattern and the energy capacity of the magnetic pattern. Fig. 1 shows the relationship between the magnetic induction B and the relative magnetic permeability μ and the magnetic field strength H of the ДСЛ1.5, ДСЛ08, ДЧЛ2.0 and ДЧЛ05 pellets (ГОСТ11964-66). The determination is carried out in a fixed magnetic field of the БУ-3 impact device. It can be seen from Figure 1 that the magnetic properties of steel shot are higher than that of cast iron shot. High demagnetization factor is due to loose material and the whole