Procede de fabrication d'un moule et moule obtenu.

A technology for manufacturing molds and molds, applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of expensive, complex and troublesome ingot molds, and achieve the effect of long service life, maintaining surface quality, and good surface quality.

Inactive Publication Date: 2006-11-15
6T MIC INGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manufacture of such ingot molds is obviously

Method used

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  • Procede de fabrication d'un moule et moule obtenu.
  • Procede de fabrication d'un moule et moule obtenu.
  • Procede de fabrication d'un moule et moule obtenu.

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Embodiment Construction

[0077] A mold manufacturing method according to a first form of the present invention is shown in FIG. 1 . A model 3 is placed in a uniaxial press 1, the model having the shape of the article to be manufactured with the mould, the press having a plate 2 of square or rectangular section, transverse along the mid-plane of the model 3 dividing the press into two parts A spacer sheet 7, and a rigid movable or disintegrable tube 4 extending between the mold 3 and the wall of the press 1, which tube is preferably filled.

[0078] Then, the first layer of expanded graphite 5 is formed on one side of the spacer sheet 7, that is, around the first half of the model 3, and the second layer of expanded graphite 6 is formed on the other side of the spacer sheet 7, that is, around the model. The other half of 3. The layers 5 , 6 thus formed completely cover the model 3 .

[0079] The layers of exfoliated graphite are then compressed by driving at least one plate 2 of the press until they ...

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Abstract

The invention relates to a method for producing a mould for moulding objects in a mouldable material consisting in using a pattern for objects to be moulded and in coating said pattern with a moulding material. The inventive method is characterised in that it also consists in using expanded graphite in the form of a moulding material, coating the pattern (3) with said expanded graphite, thereby forming a continuous expanded graphite layer or several separated expanded graphite layers (5, 6) distributed along the pattern, in pressing the expanded graphite layer(s) against the pattern in such a way that a consolidated graphite block impermeable for the mouldable material is formed for each layer. In another variant, the inventive method consists in using at least one pre-consolidated layer made of the expanded graphite which is re-compressed at least in one direction in such a way that the density thereof ranges from 30 to 50 kg/m3.

Description

technical field [0001] The invention relates to a method for manufacturing a mould. Hereinafter, the term "shaping" refers to the process of using a mold to produce an object. Without conflicting with the above definition, the term "molding" refers to the process of making a mold from elements known as patterns. The term "modeling material" refers to a material used to make a mold; the term "moldable material" refers to a material used to shape an article using a mold. Background technique [0002] Various existing methods for making molds use different materials, adopt different mold manufacturing steps, and obtain different mold shapes and application modes. The choice of one of the various methods is determined by the complexity of the shape being replicated, the number of items to be manufactured, the moldable (shapeable) material, etc. [0003] There are various mold manufacturing methods for making molds that can be processed from gypsum, cement, resin or other duro...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C9/00
CPCB22C9/22B22C9/00
Inventor 塞尔日·达席尔瓦皮埃尔·格罗塞德里克·勒冈雅克·普罗斯多奇米西尔万·皮布法特
Owner 6T MIC INGIES
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