Scientific

The microhardness of lzqt600-3 ductile iron profile was tested under the optimal scheme of nitrocarburizing state in three parts. The

As cast and qsa313 The curve of the two samples first rises and then decreases, and fluctuates greatly. This is

The significance of the comprehensive score data of friction and wear at the edge, 1 / 2R and center was

The friction and wear properties of lzqt600-3 ductile iron profile at different positions were tested. Among them, the comprehensive score

The effective hardening depth of three parts of lzqt600-3 ductile iron profile was measured. According to the measured data, the

The microhardness of different sections of the nitrocarburized lzqt600-3 ductile iron profile was tested. The effective hardened layer depth of

The evaluation index of the data is the visual analysis chart of the influence of various factors on the surface

Based on the ternary phase diagram of Fe-C-N system, the surface chemical heat treatment of nitrocarburizing is carried out. The

The evaluation index of the data is the visual analysis chart of the influence of various factors on the thickness

The thickness of nitrided layer in three parts of lzqt600-3 ductile iron profile was measured. It can be seen from

The picture shows the XRD spectrum of the surface of the sample at the edge after being treated at 540

The picture shows the SEM morphology of the cross section of the nitrocarburized sample at the edge of lzqt600-3 ductile

The figure shows the potentiodynamic polarization curves of three parts of lzqt600-3 ductile iron profile in 3.5% NaCl solution. The

Figure 1 shows the equivalent circuit diagram of three parts of lzqt600-3 ductile iron profile in 3.5% NaCl solution. R1

As a hydraulic component, plunger pump has the characteristics of precision, high cost and sensitivity to oil level pollution. When

The figure shows the friction coefficient of different parts of lzqt600-3 ductile iron profile. The friction coefficients of the edge,

Figure 1 shows SEM morphology of pearlite in different parts of lzqt600-3 ductile iron profile. The pearlite clusters in the

The figure shows the matrix structure of lzqt600-3 ductile iron profile at different parts. In figure (a), the microstructure is

The diameter distribution of graphite balls in three parts of lzqt600-3 ductile iron profile was analyzed by Excel and Image

The shape factors of graphite balls in three parts of lzqt600-3 ductile iron profile were analyzed by Excel and Image

The figure shows the statistical results of the number of graphite balls in three parts of lzqt600-3 ductile iron profile.