A method of improving the surface finish of wooden mould

Abstract

The invention relates to the field of wood mold casting, in particular to a method for improving the plane smooth degree of a wood mold. The method comprises the following steps that 1, the mold is designed, wherein software is used for designing a wood mold structure, the size of all plane portions of the wood mold is reduced by 1 mm, and all the plane portions are used for installing aluminum plates; 2, the mold is manufactured, wherein according to the wood mold structure, wood is used for machining and manufacturing the mold; 3, the aluminum plates are bonded, wherein a plate shearing machine is used for shearing the aluminum plates, and the aluminum plates are bonded to all the planes of the wood mold; 4, the edges of the aluminum plates are reinforced, wherein the edge portions of the aluminum plates are reinforced by riveting rivets, and cracking is prevented; and 5 the surface of the mold is treated, wherein the connecting portions of the aluminum plates and other faces are sanded and polished. By installing the aluminum plates on all the surfaces of the wood mold, the wood mold plane smooth degree is improved, the situation that due to the fact that sand adheres to the wood mold, the wood mold is damaged is prevented, drawing performance of the wood mold can be reinforced, the surface quality of sand cores is improved, few mold releasing agents are used, manual operation time can be shortened, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of wooden mold casting, in particular to a method for improving the plane smoothness of wooden molds. Background technique [0002] Traditional wooden molds for casting are suitable for producing castings with small batch size and large volume, which are not suitable for metal molds. Wooden molds have the advantages of low production cost and short cycle time. Since the surface of the wood has a texture structure, it is easier to stick to the sand during the actual use of the mold. The sticky sand will make the release performance of the mold worse and the surface of the mold will be damaged, thus affecting the surface quality of the sand core. At present, the general practice is to smear a release agent on the surface of the wooden mold. Every time it is used, the surface of the mold must be smeared once. For example, the patent document whose publication number is CN101054633A discloses a process for recasting waste...

AI Technical Summary

Problems solved by technology

Since the surface of the wood has a texture structure, it is easy to stick to the sand during the actual use of the mold. The sticky sand will make the release performance of the mold worse and the surface of the mold will be damaged, which will affect the surface quality of the sand core.

At present, the general practice is to smear a release agent on the surface of the wooden mold. Every time it is used, the surface of the mold must be smeared once. For example, the patent document whose publication number is CN101054633A discloses a process for recasting waste copper. When the surface of the cavity is smooth, the release agent is applied. Due to the long-term use of the release agent, the accumulation of the release agent coating leads to poor mold accuracy, and the manual work takes a long time and the operation is cumbersome.

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