Method for manufacturing casting blank of refrigerator inner container die by using lost foam casting process

A technology of lost foam casting and refrigerator liner, which is applied in the field of mold manufacturing, can solve the problems of difficult operation technology, low foam material strength, and long production cycle of wooden molds, so as to eliminate the labor force of wooden molds, reduce labor costs and manufacturing costs , Reduce the effect of labor intensity and technical difficulty

Inactive Publication Date: 2011-09-28
CHUZHOU JINNUO INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has caused a series of disadvantages such as long production cycle of wooden molds, insufficient precision, high consumption of raw materials, serious environmental pollution, high labor intensity, difficult operation technology, heavy castings, poor surface quality, and large follow-up workload.

Method used

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  • Method for manufacturing casting blank of refrigerator inner container die by using lost foam casting process
  • Method for manufacturing casting blank of refrigerator inner container die by using lost foam casting process

Examples

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Embodiment 1

[0030] Use the lost foam casting process to manufacture the casting billet of the refrigerator liner mold. ① Carry out three-dimensional modeling and design of the mold, and cut it into 6 splicing modules. The required size, and each module is processed and formed on the CNC machine tool; ③ Assemble and bond each forming module into a whole, and bond it to the pouring system, ④ Dip-coat special paint 1 to 3 on the surface of the bonded model ⑤Put the dip-coated model into a drying room with a temperature of about 45°C and a relative humidity below 35% for drying treatment; ⑥Place the dried model in a sand box, Add sand to pre-embed, and do micro-adjustment and vibration; ⑦Pour in the smelted aluminum solution, and after the aluminum solution is filled to the sprue cup, quickly connect the vacuum system. Release the vacuum in about 40 seconds; ⑧After 2 hours of natural cooling, take the mold out of the box, and after cleaning, you can get the casting billet of the refrigerator ...

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Abstract

The invention discloses a method for manufacturing a casting blank of a refrigerator inner container die by using a lost foam casting process, and relates to the technical field of die manufacture. The method comprises the following steps of: three-dimensional modeling, module segmentation, foam processing, module adhesion, coating immersion, model drying, embedded compaction, molten aluminum pouring, vacuum negative pressure, normal-temperature cooling, un-boxing and clearing to obtain the casting blank of the refrigerator inner container die. The casting die has short blank casting period, the natural shape wall thickness of the die is accurate, the casting is light in weight, the labor intensity of a worker is low, the production efficiency is high, and the labor cost and the manufacturing cost are reduced; and the method is an energy-saving and environment-friendly 'green' project.

Description

Technical field: [0001] The invention relates to the technical field of mold manufacturing, in particular to a method for manufacturing a mold blank of a refrigerator liner by using a lost foam casting process. Background technique: [0002] The existing refrigerator liner mold casting is all sand casting. Firstly, the inner and outer wooden molds are made according to the drawings and casting requirements, and the inner and outer wooden molds are respectively placed in clay sand to obtain the same clay sand inner mold and clay mold as the wooden mold. After the sand mold and clay sand mold are dried, the clay sand mold is closed and the smelted aluminum solution is injected. After the aluminum solution is fully solidified, the mold blank is removed for deburring and sand cleaning. Due to the complex shape of the refrigerator liner mold, the quality requirements are high, the quantity is single, and there are many varieties. This has caused a series of disadvantages such as...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/04
CPCB22C9/046B22C9/22B22D21/007
Inventor 马正松刘明亮陈元根赵玉林张玉胜
Owner CHUZHOU JINNUO INDAL
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