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High toughness ceramic mold material and preparation method thereof

A ceramic mold, high toughness technology, applied in metal extrusion molds and other directions, can solve problems such as difficulty in mass production, inability to repair, high price, etc., and achieve the effects of low manufacturing cost, improved service life, and reduced production cost

Inactive Publication Date: 2016-12-07
余姚市巧迪电器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ceramic moulds, although their service life is greatly improved, it is difficult for large-scale production due to the high price, easy cracking and inability to repair

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In the embodiment of the present invention, a high-toughness ceramic mold material includes raw materials in parts by weight: 48 parts of ceramic bone powder, 33 parts of aluminum powder, 12 parts of cobalt powder, 3 parts of tungsten powder, 0.5 part of phosphorus powder, epoxy resin 35 parts, 5 parts of curing agent, 3 parts of thinner.

[0021] The preparation method of the high-toughness ceramic mold material comprises the following steps:

[0022] 1) Weigh epoxy resin, curing agent, diluent, aluminum powder, cobalt powder, tungsten powder, phosphorus powder, ceramic bone powder according to parts by weight, and mix evenly.

[0023] 2) The raw materials are subjected to vacuum self-consumption smelting and then hot-rolled into billets.

[0024] 3) Heat-setting treatment: heat the billet obtained after hot rolling to 750°C, keep it for 2 hours, then raise the temperature to 1100°C within 2 hours, keep it at this temperature for 7 hours, and then disperse and air-coo...

Embodiment 2

[0028] In the embodiment of the present invention, a high-toughness ceramic mold material includes raw materials in parts by weight: 56 parts of ceramic bone powder, 40 parts of aluminum powder, 18 parts of cobalt powder, 8 parts of tungsten powder, 1.2 parts of phosphorus powder, epoxy resin 45 parts, 12 parts of curing agent, 9 parts of thinner.

[0029] The preparation method of the high-toughness ceramic mold material comprises the following steps:

[0030] 1) Weigh epoxy resin, curing agent, diluent, aluminum powder, cobalt powder, tungsten powder, phosphorus powder, ceramic bone powder according to parts by weight, and mix evenly.

[0031] 2) The raw materials are subjected to vacuum self-consumption smelting and then hot-rolled into billets.

[0032] 3) Heat-setting treatment: Heat the billet obtained after hot rolling to 850°C, keep it warm for 3 hours, then raise the temperature to 1200°C within 3 hours, keep it at this temperature for 9 hours, and then disperse and ...

Embodiment 3

[0036] In the embodiment of the present invention, a high-toughness ceramic mold material includes raw materials in parts by weight: 50 parts of ceramic bone powder, 35 parts of aluminum powder, 14 parts of cobalt powder, 4 parts of tungsten powder, 0.7 part of phosphorus powder, epoxy resin 38 parts, 7 parts of curing agent, 5 parts of thinner.

[0037] The preparation method of the high-toughness ceramic mold material comprises the following steps:

[0038] 1) Weigh epoxy resin, curing agent, diluent, aluminum powder, cobalt powder, tungsten powder, phosphorus powder, ceramic bone powder according to parts by weight, and mix evenly.

[0039] 2) The raw materials are subjected to vacuum self-consumption smelting and then hot-rolled into billets.

[0040] 3) Heat-setting treatment: Heat the billet obtained after hot rolling to 750°C, keep it warm for 2.3h, then raise the temperature to 1200°C within 2.3h, keep it at this temperature for 7.5h, then disperse and air cool to roo...

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PUM

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Abstract

The invention discloses a high toughness ceramic mold material and a preparation method thereof. The ceramic mold material comprises, by weight, 48-56 parts of ceramic bone powder, 33-40 parts of aluminium powder, 12-18 parts of cobalt powder, 3-8 parts of tungsten powder, 0.5-1.2 parts of phosphorus powder, 35-45 parts of epoxy resin, 5-12 parts of curing agents and 3-9 parts of thinner. All the raw materials are mixed uniformly, and blanks are formed through hot rolling after vacuum consumable smelting; and the ceramic mold material is obtained after the blanks obtained after hot rolling are subjected to thermosetting treatment, first firing aging treatment and second firing aging treatment. According to the high toughness ceramic mold material, the epoxy resin, the aluminium powder and the ceramic bone powder serve as matrixes and are used as the mold material for non-ferrous metal hot extrusion, the tungsten powder and the phosphorus powder with good high temperature hardness and a good wear-resisting property are added, and meanwhile, the cobalt powder is added to improve high temperature strength and hardness. The obtained ceramic mold material has the characteristics of being good in high temperature property, and high in strength, wear-resisting property and tenacity; and the service life of a mold is prolonged and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of ceramic molds, in particular to a high-toughness ceramic mold material and a preparation method thereof. Background technique [0002] In the casting process, the mold is an essential casting process equipment, and the technical level of the mold manufacturing directly affects the quality of the casting. Ceramic molds have always played a major role in the overall composition of abrasive tools. Although with the continuous development of binder materials and the improvement of mold types, the output of ceramic molds has shown a downward trend in the total output of molds, but it is still in the total mold. occupy a large proportion. The advantages of ceramic molds: high strength, high hardness, moisture-proof, wear-resistant, stain-resistant, corrosion-resistant, high-temperature resistant, easy to clean, small deformation, good insulation, and has certain resistance to rapid cooling and rapid heating. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22F1/00B21C25/02
CPCC22C30/00B21C25/025C22C29/00C22F1/00
Inventor 韩巧
Owner 余姚市巧迪电器厂
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