Casting mold for single cylinder diesel body, external casting mold for horizontal parting multi-cylinder diesel body and cast parts, and energy-saving low-carbon casting process of external casting mold

Abstract

The invention provides an energy-saving low-carbon casting process for a single cylinder diesel body, which comprises manufacture of the mold, wherein a resin sand and triethylamine curing technique is used during the manufacture of an external mold; a mold gate is located at a spindle hole of the diesel body; and an exhaust port is arranged on a balance axle hole of the diesel body. By using thenovel process provided by the invention, defects of the single cylinder diesel production in the prior art, such as low quality, low efficiency, high energy consumption, serious pollution and intensive labor, can be solved. The invention also provides the mold used in the process. The invention further provides an external casting mold for the horizontal parting multi-cylinder diesel body and thecast parts, and the casting process of the external casting mold.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a casting process for a single-cylinder series diesel engine body, and also relates to a casting mold for a single-cylinder diesel engine body. It also relates to a horizontal split casting outer mold for manufacturing and a manufacturing method thereof, in particular to a horizontal split multi-cylinder machine body casting outer mold and a manufacturing method thereof. Background technique [0002] In the prior art, the mold used in the casting process of the single-cylinder diesel engine body includes an outer mold and an inner core, wherein the outer mold includes an upper mold and a lower mold, and the inner core includes an upper core and a lower core. The outer mold wherein is usually made of a mixture of sand, bentonite, coal powder, and molding sand powder. In the manufacturing process, firstly, the above-mentioned mixture is put into a sand mixer with the f...

AI Technical Summary

Problems solved by technology

[0005] 2. The locking and positioning structure of the outer mold sand box, the positioning accuracy between the upper and lower molds is low, and the core head gap between the outer mold and the core head of the inner core is relatively large, which makes the two sand boxes of the upper and lower molds easy to Misalignment, these problems will cause more casting burrs, rough and unsightly appearance, and also increase the machining allowance in the subsequent machining of the machine body, high wear consumption of cutting tools, and a large amount of cut iron chips

[0006] 3. The existing process has many steps and complex process. The material of the outer mold is ground and mixed and filled into the sand box for vibration extrusion molding. There are many equipment and facilities, many operators, high labor intensity and low production efficiency.

[0007] 4. The gate design of the mold makes the transition runner too long, the heat conduction of molten iron becomes poor, and cold shut phenomenon is easy to occur, and cracks are formed on the casting, which causes the casting to be scrapped

However, because the cost is too high, the existing single-cylinder diesel engine block, a product with very low added value, does not use the above-mentioned manufacturing process and material of the inner core in the production of its outer mold.

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