Improved Technology of Diesel Engine Cylinder Casting

Abstract

The invention relates to the technical field of casting of diesel engine cylinders, in particular to an improved technology for casting of a diesel engine cylinder. The method comprises the steps of mold making, mold closing, casting, cleaning, shot blasting and rust prevention. In the mold making process, a mold is placed into a sand box, a movable plate is arranged at the cross section of an observation hole in the inner side surface, and the two sides of the observation hole are separated through the movable plate, sand is scoured and the side of the movable plate far away from an inner cavity sand core is filled with sand, after the sand scouring process, the mold is taken out and the movable plate is removed, the inner cavity sand core without a core head is placed into the sand box, and the mold at the position of the observation hole of the inner cavity sand core is aligned with the mold at the position of the observation hole which is manufactured by sand scouring. The side upper box hole no-core print technology is adopted, the core making process is convenient, the core setting is convenient and practical, the position of the core is accurate and the appearance is tidy and free of seams.

Description

technical field [0001] The invention relates to the field of diesel engine cylinder block casting technology, in particular to an improved process for diesel engine cylinder block casting. Background technique [0002] The sand core in the inner cavity of the diesel engine cylinder is tall, and the upper and lower holes are on the sand core in the inner cavity. The process requires the hole position to be accurate. The molding process of the traditional process: put the model in the sand box, and then wash the sand to complete the external modeling. After the sand washing is completed , first put the first auxiliary sand core with the core head, and then put the inner cavity sand core with several core heads, and position the core head according to the side observation hole, that is, make the core head of the first auxiliary sand core It is assembled with a core head of the inner cavity sand core, and positioned according to the position of the core head exiting the upper bo...

AI Technical Summary

Problems solved by technology

This method is afraid of sand knocking, the gap between the core heads is large, the core head does not play a positioning role, and the side observation hole leads to more seams on the side of the core head, which affects the appearance, and the core is cumbersome.

Images