Process optimization of nodular iron castings for small motor base
Through the comprehensive analysis and judgment of the defects after the actual production of nodular iron castings and the CAE […]
Scientific
Scientific
Scientific
Observation and analysis of microstructure of gray cast iron
1.Metallographic observation The metallographic sample is taken from the gray cast iron cylinder body, cut and sampled with a cutting
Scientific
Effect of vibration frequency on graphite morphology of gray cast iron
The figure shows the graphite morphology of gray cast iron prepared under different vibration frequencies. Among them, figures (a) –
Scientific
Production of gray cast iron
Figure 1 shows the model of a high-strength gray cast iron engine cylinder block. The main processes include raw material
Scientific
Solidification process of gray cast iron
Iron carbon equilibrium phase diagram is indispensable for the foundation of cast iron, which has theoretical guiding significance for the
Scientific
Original technology and quality problems of nodular iron castings for small motor base
The original process scheme of nodular cast iron is shown in Figure 1, with two pieces in one box. It
Scientific
Effect of vibration frequency on Microstructure and properties of gray cast iron
The influence of vibration frequency on the microstructure and properties of gray cast iron in lost foam casting was studied
Scientific
Matrix structure and graphite state in gray cast iron
Gray cast iron is mainly composed of matrix structure and graphite, and others include eutectic group, carbide and cementite eutectic.
Scientific
Effect of graphite morphology and distribution on properties of nodular cast iron
By controlling the size and distribution of graphite diameter and the spherical regularity of graphite, the correlation degree with the
Scientific
Effect of vibration on Microstructure of white cast iron
The picture shows the microstructure of white cast iron in lost foam casting with and without vibration. It can be
Scientific
Effect of sample wall thickness on matrix structure of nodular cast iron
The figure is the matrix structure diagram of the vibration lost foam casting ductile iron, in which figures (a) –
Scientific
Analysis of graphite morphology and mechanical properties of nodular cast iron
Fig. 1 (a) and Fig. 1 (b) show the hardness and strength changes of three groups of nodular cast iron
Scientific
Effect of sample wall thickness on hardness of gray cast iron
The figure shows the relationship between Brinell hardness of gray cast iron and sample wall thickness. It can be seen
Scientific
Kinetic conditions of graphite morphology transformation in cast iron alloys
The metal melt meeting the thermodynamic conditions of nucleation only provides the possibility for the metal melt to solidify and
Scientific
Effect of sample wall thickness on matrix structure of lost foam casting gray cast iron
The figure shows the matrix structure of gray cast iron with different wall thickness. Among them, figures (a) and (a’),
Scientific
Effect of sample wall thickness on hardness of white cast iron
The figure shows the relationship between the hardness of white cast iron and the wall thickness of the sample. It
Scientific
Effect of amplitude on mechanical properties of gray cast iron
The figure shows the fracture morphology of grey cast iron prepared under different amplitude conditions. Among them, figures (a) –
Scientific
Effect of sample wall thickness on graphite morphology of nodular cast iron
Figure 1 shows the graphite morphology of the nodular cast iron by vibration lost foam casting, in which figure 1
Scientific
Effect of vibration frequency on the matrix structure of grey cast iron
The figure shows the matrix structure of gray prayer iron prepared under different vibration frequencies. Among them, figures (a) –
Scientific
Effect of graphite type on macro thermal fatigue crack propagation of gray cast iron
When the microcrack propagation no longer depends on the material surface conditions, the crack initiation stage ends, and the crack
Scientific
Effect of vibration frequency on primary austenite of gray cast iron
The figure shows the austenite morphology of gray cast iron prepared under different vibration frequencies. Figures (a) – (d) show
Scientific
Analysis of graphite morphology and microstructure of nodular cast iron
Fig. 1 shows the microstructure SEM of three groups of ductile iron samples. It can be seen from the figure
Scientific
Effect of wall thickness on graphite morphology of nodular cast iron
The figure below shows the graphite morphology at different wall thicknesses of lost foam casting ductile iron. Figures (a) –
Scientific
Effect of sample wall thickness on graphite morphology of lost foam casting gray cast iron
The figure shows the graphite morphology in gray cast iron with different wall thickness. Among them, figures (a) – (c)
Scientific
Thermodynamic analysis of vibration lost foam casting
It can be seen from the test that when the vibration frequency is 35Hz, the tensile strength of vibration lost
Scientific
Effect of graphite ball on mechanical properties of nodular cast iron
Under normal circumstances, the number of graphite balls in nodular cast iron will affect the matrix structure and stress distribution
Scientific
Effect of treatment temperature on mechanical properties of nodular cast iron
As the nodular cast iron treated at 1560 ° C has been obviously white cast, it is not satisfied with
Scientific
Microstructure of high chromium cast iron carbon steel bimetal composite specimen after heat treatment
High chromium cast iron needs heat treatment to obtain the best comprehensive properties. High temperature austenitizing destabilization treatment and medium
Scientific
Effect of sample wall thickness on Microstructure of nodular cast iron in vibration lost foam casting
In practical production, the shape of castings is usually irregular, and the wall thickness varies greatly. These factors have an
Scientific
Effect of amplitude on mechanical properties of nodular cast iron in Lost Foam Casting
Fig. 1 is the variation curve between mechanical properties and amplitude of EPC ductile iron. It can be seen from