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Nano-aluminum-oxide-based metal ceramic mold material and preparation method thereof

A technology of nano-alumina and ceramic molds, which is applied in the field of mold materials, can solve problems that affect product quality, mold life, product quality and yield, and large differences in thermal expansion coefficients, and overcome easy cracking, high yield, and The effect of long fracture toughness

Inactive Publication Date: 2016-08-10
SUZHOU JIEDERUI PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the metal-ceramic mold material has the above advantages, the thermal expansion coefficients of the metal phase and the ceramic phase in the metal-ceramic mold material are quite different, and it is easy to crack and crack, which affects the product quality and the service life of the mold; in addition, the used The metal phase of the metal phase is also easy to oxidize during the mold forming process, and it is also easy to stick to the material during the extrusion process, which affects the quality and yield of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The preparation method of the nano-alumina-based cermet mold material described in this embodiment comprises the following steps:

[0022] (1) Ingredients: Proportionally weigh each component according to parts by weight: 78 parts of nano-alumina, 13 parts of boron nitride, 2 parts of samarium powder, 4 parts of slag powder, 1 part of titanium hydride, 0.6 parts of lithium vanadate, boric acid 4 parts of aluminum whiskers, 0.4 parts of gallium trioxide, 8 parts of nano calcium carbonate, 1.3 parts of titanium diboride, 0.2 parts of europium iodide, 0.4 parts of niobium carbide, 0.8 parts of diyttrium trioxide, 0.5 parts of erucamide , 0.8 parts of tantalum carbide, 0.5 parts of molybdenum disulfide, 0.2 parts of methyl vinyl dichlorosilane;

[0023] (2) Ball mill mixing: put the other ingredients except nano-alumina into the ball mill with a ball-to-material ratio of 18:1. After wet milling for 12 hours, vacuum-dry at 60°C for 24 hours to obtain a ball mill, and then A...

Embodiment 2

[0026] The preparation method of the nano-alumina-based cermet mold material described in this embodiment comprises the following steps:

[0027] (1) Ingredients: Proportionally weigh each component according to parts by weight: 90 parts of nano-alumina, 25 parts of boron nitride, 8 parts of samarium powder, 9 parts of slag powder, 5 parts of titanium hydride, 3 parts of lithium vanadate, boric acid 8 parts of aluminum whiskers, 2 parts of gallium trioxide, 15 parts of nano calcium carbonate, 4 parts of titanium diboride, 2 parts of europium iodide, 3 parts of niobium carbide, 2.6 parts of diyttrium trioxide, 2.5 parts of erucamide , 1.7 parts of tantalum carbide, 2 parts of molybdenum disulfide, 2 parts of methyl vinyl dichlorosilane;

[0028] (2) Ball mill mixing: put the other ingredients except nano-alumina into the ball mill with a ball-to-material ratio of 30:1. After wet milling for 24 hours, vacuum dry at 60°C for 24 hours to obtain a ball mill, and then After mixing ...

Embodiment 3

[0031] The preparation method of the nano-alumina-based cermet mold material described in this embodiment comprises the following steps:

[0032] (1) Ingredients: Proportionally weigh each component according to parts by weight: 84 parts of nano-alumina, 19 parts of boron nitride, 5 parts of samarium powder, 6 parts of slag powder, 3 parts of titanium hydride, 1.8 parts of lithium vanadate, boric acid 6 parts of aluminum whiskers, 1.2 parts of gallium trioxide, 11 parts of nano calcium carbonate, 2.6 parts of titanium diboride, 1.1 parts of europium iodide, 1.7 parts of niobium carbide, 1.7 parts of diyttrium trioxide, 1.5 parts of erucamide , 1.2 parts of tantalum carbide, 1.3 parts of molybdenum disulfide, 1.1 parts of methyl vinyl dichlorosilane;

[0033] (2) Ball mill mixing: put the other ingredients except nano-alumina into the ball mill with a ball-to-material ratio of 24:1. After wet milling for 18 hours, vacuum dry at 60°C for 24 hours to obtain the ball mill, and the...

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Abstract

The invention discloses a nano-aluminum-oxide-based metal ceramic mold material and a preparation method thereof. The metal ceramic mold material is prepared from, by weight, nano aluminum oxide, boron nitride, samarium powder, slag powder, titanium hydride, lithium vanadate, aluminum borate whiskers, gallium oxide, nano calcium carbonate, titanium diboride, iodide europium, niobium carbide, yttrium oxide, erucyl amide, tantalum carbide, molybdenum disulfide and dichloromethylvinylsilane. The metal ceramic mold material is good in bending strength and breaking tenacity and ling in service life, and the defects that a traditional metal ceramic mold material is prone to cracking, poor in tenacity and accordingly short in service life are overcome. Meanwhile, according to the prepared mold, in the actual using process, demolding is easy, the abrasion resistance is high, the quality of finished products is good, and the yield is high.

Description

technical field [0001] The invention belongs to the field of mold materials, and in particular relates to a nano-alumina-based cermet mold material and a preparation method thereof. Background technique [0002] Mold is an important process equipment in the manufacture of communication equipment, industrial devices, and auto parts. It enjoys the reputation of "mother of industry" and has many advantages such as high efficiency, good quality, saving raw materials, and reducing costs. According to statistics, more than 60% of the parts in the mechanical processing products of various departments need to be produced by using molds, so molds play an important role in industrial production and development. [0003] Metal-ceramic mold materials have the advantages of high strength, high hardness, high temperature resistance, and wear resistance, and are widely used in hot extrusion molding. Among the cermet mold materials, alumina-based molds and silicon nitride-based molds are t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/00C22C47/14
CPCC22C49/00C22C47/14
Inventor 姚振红
Owner SUZHOU JIEDERUI PRECISION MACHINERY
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