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Manufacturing method for casting wood mold

A production method and technology for casting wooden molds, which are applied in casting and molding equipment and other directions, can solve problems such as corrosion, easy water absorption and deformation of wooden molds, and achieve the effects of improving firmness, good drying shrinkage stability, and protecting wooden molds.

Inactive Publication Date: 2017-10-03
河池市一森机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for making a casting wooden mold, which can solve the problem that the existing wooden mold is easy to absorb water, deform and corrode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The manufacture method of the casting wooden mold of the present embodiment comprises the following steps:

[0016] A. Make the sub-mold blanks according to the shape of the casting, and each sub-mold blank is provided with a mutual clamping structure;

[0017] B, drying sub-mould base, control the moisture content of sub-mould base at 6%;

[0018] C. Coating adhesive on the joint surface of the sub-mold bases, so that each sub-mold bases are clamped and bonded to each other, and after natural air-drying, finish molding to obtain wooden mold bases;

[0019] D. Apply and scrape the putty on the surface of the wooden mold, mix the putty and methyl ethyl ketone curing agent, and finish the scraping within 10 minutes. After scraping the ash, polish it for 1 hour and air dry;

[0020] E. Spray the wear-resistant paint twice on the surface of the putty coating to form a wear-resistant layer with a thickness of 0.3mm.

Embodiment 2

[0022] The manufacture method of the casting wooden mold of the present embodiment comprises the following steps:

[0023] A. Make the sub-mold blanks according to the shape of the casting, and each sub-mold blank is provided with a mutual clamping structure;

[0024] B, drying sub-mould base, control the moisture content of sub-mould base at 7%;

[0025] C. Coating adhesive on the joint surface of the sub-mold bases, so that each sub-mold bases are clamped and bonded to each other, and after natural air-drying, finish molding to obtain wooden mold bases;

[0026] D. Apply putty on the surface of the wooden mold, mix the putty and methyl ethyl ketone curing agent, and finish the application within 15 minutes. After scraping the ash, polish it for 1.5 hours and air dry;

[0027] E. Spray wear-resistant paint twice on the surface of the putty coating to form a wear-resistant layer with a thickness of 0.4mm.

Embodiment 3

[0029] The manufacture method of the casting wooden mold of the present embodiment comprises the following steps:

[0030] A. Make the sub-mold blanks according to the shape of the casting, and each sub-mold blank is provided with a mutual clamping structure;

[0031] B, dry the sub-mould base, control the moisture content of the sub-mould base at 8%;

[0032] C. Coating adhesive on the joint surface of the sub-mold bases, so that each sub-mold bases are clamped and bonded to each other, and after natural air-drying, finish molding to obtain wooden mold bases;

[0033] D. Apply and scrape the putty on the surface of the wooden mold, mix the putty and methyl ethyl ketone curing agent, and finish the scraping within 12 minutes. After scraping the ash, polish it for 2 hours and air dry;

[0034] E. Spray wear-resistant paint twice on the surface of the putty coating to form a wear-resistant layer with a thickness of 0.5mm.

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Abstract

The invention discloses a method for making a casting wooden mold, which relates to the technical field of casting. The method comprises the following steps: making sub-mold blanks according to the shape of the casting, and interlocking structures are arranged between the sub-mold blanks; drying the sub-molds Control the moisture content of the sub-mold blanks at 6-8%; apply an adhesive on the joint surface of the sub-mold blanks, so that the sub-mold blanks are clamped and bonded to each other, and after natural air drying, finish molding to obtain a wooden mold Blank; apply atomic putty on the surface of the wooden formwork, sand it flat for 1 to 2 hours after scraping, and air dry; spray wear-resistant paint twice on the surface of the atomic ash coating to form a wear-resistant layer. The invention solves the problem that the existing wooden formwork is easy to absorb water, deform and corrode.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a method for making a casting wooden mold. Background technique [0002] Wooden mold is a model used for modeling and core making in foundry production. It has low cost and short production cycle. It is mainly used for casting large-diameter castings with low precision requirements, and is suitable for single-piece and small-batch production. The disadvantage of wooden formwork is that when the temperature and humidity change, the wooden formwork will be deformed, cracked, and corroded, and its surface hardness is low, and it is easy to be bumped and damaged. The production of the existing wooden formwork is usually to coat the surface of the wooden formwork with a layer of protective paint after machining the wood to prolong the service life, but most of the protective paint layer will fall off due to factors such as friction, which cannot achieve a good finish. Protective effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C7/00
CPCB22C7/00
Inventor 蓝媚韦春枝
Owner 河池市一森机械有限责任公司