Unlock instant, AI-driven research and patent intelligence for your innovation.

Application of a zirconia ceramic material in the preparation of guide wheels

A technology of zirconia ceramics and guide wheels, which is applied in the field of multi-wire cutting machines and other equipment that requires guide wheels, to achieve high rigidity, good thermal stability, and reduce production costs.

Active Publication Date: 2019-05-31
XINNA ELECTRONICS HENGDIAN GROUP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the various problems and defects in the above-mentioned prior art, the present invention aims to provide an application of a zirconia ceramic material in the preparation of guide wheels, in order to overcome the deficiencies of existing material guide wheels and greatly improve the wear resistance of guide wheels and greatly reduce the thermal expansion and deformation of the guide wheel due to the large amount of heat generated during high-speed operation. At the same time, the guide wheel has a high compressive strength, which can fully meet the compressive resistance required by the guide wheel. Not easy to deform, while reducing loss, prolonging service life and reducing production costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The composite zirconia used in this embodiment is mainly composed of zirconia with a mass percentage ≥ 94% and yttrium oxide with a mass percentage of 5.305%. The powder particle size of zirconia is less than 6 μm, and the powder particle size of yttrium oxide is less than 4 μm. Composite zirconia meets: powder loss on ignition ≤ 4%, bulk density ≥ 1.3g / cm 3 , Moisture ≤ 3%.

[0033] A zirconia ceramic guide wheel for a multi-wire cutting machine is prepared according to the following steps:

[0034] (1) Dry pressing

[0035] The composite zirconia is dry-pressed with a dry press molding machine under a pressure of 120KN,

[0036] (2) Vacuum treatment

[0037] Put the preliminarily formed body into a plastic bag, and use a vacuum degree of -0.8MPa to completely extract the air in the plastic bag for 5 seconds, so that the plastic bag is completely close to the body.

[0038] (3) Isostatic pressing

[0039] Put the bagged body in step (2) into an isostatic press, a...

Embodiment 2

[0046] The composite zirconia used in this embodiment is mainly composed of zirconia with a mass percentage ≥ 94.5% and calcium oxide with a mass percentage of 5.101%. The particle size of zirconia powder is less than 5.3 μm, and that of calcium oxide is less than 3.5 μm. Composite zirconia meets: loss on ignition of powder ≤ 3.1%, bulk density ≥ 1.26g / cm 3 , Moisture ≤ 2.6%.

[0047] A zirconia ceramic guide wheel for a multi-wire cutting machine is prepared according to the following steps:

[0048] (1) Dry pressing

[0049] The composite zirconia is dry-pressed with a dry press molding machine under a pressure of 120KN,

[0050] (2) Vacuum treatment

[0051] Put the preliminarily formed body into a plastic bag, and use a vacuum degree of -0.8MPa to completely extract the air in the plastic bag for 5 seconds, so that the plastic bag is completely close to the body.

[0052] (3) Isostatic pressing

[0053] Put the bagged green body in step (2) into an isostatic press, a...

Embodiment 3

[0060] The composite zirconia used in this embodiment is mainly composed of zirconia with a mass percentage ≥ 80% and ceria with a mass percentage of 19.254%. The powder particle size of zirconia is less than 4.4 μm, and the powder particle size of ceria is less than 2.7 μm. Composite zirconia satisfies: loss on ignition of powder ≤ 6.6%, bulk density ≥ 1.12g / cm 3 , Moisture ≤ 5%.

[0061] A zirconia ceramic guide wheel for a multi-wire cutting machine is prepared according to the following steps:

[0062] (1) Dry pressing

[0063] The composite zirconia is dry-pressed with a dry press molding machine under a pressure of 120KN,

[0064] (2) Vacuum treatment

[0065] Put the preliminarily formed body into a plastic bag, and use a vacuum degree of -0.8MPa to completely extract the air in the plastic bag for 5 seconds, so that the plastic bag is completely close to the body.

[0066] (3) Isostatic pressing

[0067] Put the bagged body in step (2) into an isostatic press, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
flexural strengthaaaaaaaaaa
hardnessaaaaaaaaaa
wear resistanceaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of semiconductors and relates to guide rollers used for multi-wire cutting machines, in particular to an application of a zirconia ceramic material in preparation of a guide roller. The zirconia ceramic material is made from composite zirconia and is prepared from main components in percentage by mass as follows: 75% of zirconia or more and the balance of an additive, wherein the additive is any one of yttrium oxide, calcium oxide and cerium oxide. The problems about thermal expansion and deformation caused by heat generated during high-speed rotation of guide rollers which are made of existing materials and have poor wear resistance are solved effectively, the zirconia ceramic material enables the guide rollers to have the required anti-pressure capacity, the guide rollers are unlikely to deform, and the purposes of reducing energy consumption, prolonging the service life and reducing the production cost are achieved.

Description

technical field [0001] The invention relates to the field of multi-wire cutting machines and other devices requiring guide wheels, in particular to the application of a zirconia ceramic material in preparing guide wheels. Background technique [0002] Zirconia ceramics are favored by material science researchers all over the world in various fields such as structural materials because of their excellent properties such as excellent wear resistance, corrosion resistance, self-lubrication, high rigidity, and not easy to deform. But since pure ZrO 2 When heating up, it transforms from monoclinic to square, with 5% volume shrinkage, and when it cools down, it transforms from monoclinic in four directions, resulting in 8% volume expansion, large stress, microcracks in the structure, and small thermal conductivity. , the coefficient of thermal expansion is large, making pure ZrO 2 The mechanical, electrical and thermal shock resistance properties are very poor, resulting in pure...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48
CPCC04B35/48C04B2235/3206C04B2235/3225C04B2235/3229C04B2235/5436
Inventor 王平进金海潮王凯翔张其灿李国安
Owner XINNA ELECTRONICS HENGDIAN GROUP