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Method of building up a body comprising a refractory molded base material and a resole resin layer by layer

A technology of resole phenolic resin and molding material, which is applied in the field of three-dimensional body and can solve problems such as casting errors

Active Publication Date: 2019-12-10
ASK CHEM LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A disadvantage is, for example, that casting molds combined with acid-hardened furan resins disintegrate prematurely during casting, at least in iron casting, which leads to significant casting errors

Method used

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  • Method of building up a body comprising a refractory molded base material and a resole resin layer by layer
  • Method of building up a body comprising a refractory molded base material and a resole resin layer by layer
  • Method of building up a body comprising a refractory molded base material and a resole resin layer by layer

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] First, the influence of the molding base material and silicon powder on the strength is tested with the aid of conventional test bodies, so-called George Fisher test bars.

[0083] The findings obtained here were confirmed by casting molds subsequently produced with the aid of 3-D printing technology.

[0084] 1. Manufacture the body

[0085] 1.1 No SiO added 2

[0086] The molding material was added to the bowl of a Hobart company (model HSM 10) mixer. Subsequently, under stirring, first the hardener and then the binder are added and mixed intensively with the molding base material for 1 minute each. The types of molding base materials, hardeners and binders and their corresponding additions are listed in Table 1.

[0087] Table 1

[0088]

[0089] (a) Possehl silicon powder POS B-W 90LD (Possehl Erzkontor AG; manufacturing process: made of ZrO 4 Production of SiO 2 and ZrSiO 2

[0090] (b) Catalyst 5090 (ASK Chemicals Co., Ltd.) vinegar essence

[0091] (...

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Abstract

The invention relates to a method for layer-by-layer construction of a body comprising a refractory molding base material and a resole resin, a three-dimensional body produced according to the method and its use in metal casting. In this method, a refractory molding base material is agglomerated with at least one ester to obtain an ester-impregnated molding material mixture.

Description

technical field [0001] The invention relates to a method for layer-by-layer construction of a body comprising a refractory molding base material and a resole resin, a three-dimensional body produced according to the method in the form of a mold for metal casting or Manufactured in core form. Background technique [0002] The term "rapid prototyping" is known as a different method for manufacturing three-dimensional bodies by layer-by-layer building. The advantage of this method is that complex one-piece bodies with undercuts and cavities can also be produced. With conventional methods, the body must be assembled from several separately produced parts. Another advantage is that the method enables the manufacture of bodies directly from CAD data without molding tools. [0003] The so-called selective laser sintering method (SLS method) is described in EP 0538244 B1. According to this patent, a powder, for example in the form of loose metal or plastic granules, is applied t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C1/22B22C9/02B22C9/10B29C64/165B33Y70/00B33Y10/00
CPCB33Y10/00B22C1/2253B22C9/02B22C9/10B33Y70/10B29C64/165Y02P10/25B33Y80/00B22C1/22B28B1/00B29C67/00
Inventor 丹尼斯·巴特尔斯安东尼·吉尼克
Owner ASK CHEM LP
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