Sand casting process design of engine cylinder head
1. Casting analysis and selection of sand casting process As shown in Figure 1, the cylinder head of passenger car […]
1. Casting analysis and selection of sand casting process As shown in Figure 1, the cylinder head of passenger car […]
It can be seen from the table that under the pouring temperature of 1420 ℃ and 1450 ℃, the mold
Many process parameters can affect the quality of lost foam castings. The process parameters of lost foam casting mainly studied
The design of inner gate has a very important impact on the casting quality, because the flow direction and speed
1. Mold filling simulation process and analysis Figure 1 shows the filling state of the new process numerical simulation at
Due to the characteristics of lost foam casting, compared with sand casting, its process is more complex, so there is
The core pulling molding sand casting technology commonly used in the production of cast impeller and the assembly and welding
According to the technical requirements, the mechanical properties test mainly includes hardness and tensile properties. 1. Hardness test After solution
a) Metallographic observation of casting state Etchant: aqua regia solution Magnification: 100X The as cast structure of zg1crl8ni9ti is shown
Adjustment of scanning speed: when adjusting the baseline with 1:1, the method is the same as above. Turn the [coarse
Turn the [coarse depth adjustment] knob to 250mm. Adjustment of scanning speed: align the longitudinal wave straight head with the
The chemical composition inspection methods of impeller castings include chemical analysis and spectral analysis. Chemical analysis has high precision and
In order to improve the mechanical properties of zg1cr18ni9ti stainless steel impeller investment casting sand casting, reduce segregation and improve
a. Gas cutting process parameters The gas cutting equipment of impeller investment casting sand casting pouring and riser adopts g01-300
Due to the low plasticity and work hardening of investment casting sand casting stainless steel impeller, it is difficult to
Because it is a composite mold of molten model shell and sodium silicate sand mold, the sand dropping process of
The process of pouring the liquid metal of impeller sand mold into the mold is called pouring. The purpose of
When the mold shell of impeller investment casting sand casting part and the sand mold of wheel hub and spoke
a. Formulation of water glass sand casting coating for impeller In order to ensure that the surface roughness of impeller
According to the experimental requirements and the convenience of operation, the hardening process of sand mold casting with intubation blowing
a. Formulation of molding materials Impeller investment casting sand casting molding material is the most important factor in casting production.
a. Sand casting pattern (1) Selection of pattern material for sand casting of impeller investment mold sand mold composite molding
a. Sand consumption The distance between the impeller investment casting sand casting pattern and the inner wall and top of
(1) Impeller investment casting – sand casting weight The weight of each impeller by investment casting sand casting is about
(1) Comparison of riser number of wheel hub in investment casting sand casting Check whether an impeller investment casting sand
(1) Impeller investment casting – Determination of specific shape and size of riser of wheel flange in sand casting According
(1) Determination of specific shape and size of riser of wheel hub in investment casting sand casting According to the
The molding process of impeller investment mold sand mold composite casting is the key content of the whole process, which
(1) Calculation of riser modulus of wheel hub in investment casting sand casting Impeller investment casting – sand casting, the
According to the structural characteristics of sand casting for vertical column and the technical requirements of main guide rail surface,