Let me talk about the main points of the casting process of the cast iron scribing platform
. When casting a lined cast iron platform, the choice of casting position is also very tense, and the casting method of the cast iron platform with different examples also has great differences.
The thin-walled department with a large area is placed in the lower part of the mold, and at the same time, the thin-walled part can be poured upright or skewed as much as possible, which is beneficial to the filling of metal. It places a large-area thin-walled section of the cast-iron platform on top of the casting, so that this section can be filled with the mold under high metal liquid pressure to prevent insufficient pouring.
，应使泥芯能安排安稳并在合箱时便于查验。 For the cast-iron scribing platform
with a mud core, the mud core should be arranged securely and be easily inspected when the box is closed. Because the mud core is long and the stiffness is insufficient, the mud core undergoes bending deformation under the influence of the buoyancy of the metal liquid. If it is changed to pouring, the above adverse environment can be avoided.
For some cast-iron platforms to be replenished, thicker sections should be placed on the top or side of the mold. This makes it easy to arrange risers on the thick walls of the cast iron platform, resulting in a good order of condensation, which is conducive to the repair of the cast iron platform