Detection method for performance of ceramic combination agent abrasive tool

A vitrified bond and detection method technology, which is applied in the field of abrasives and abrasive tools, can solve the problem that the holding force cannot be directly measured, and achieve the effect of easy operation and accurate measurement results

Inactive Publication Date: 2019-01-18
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for detecting the holding force of ceramic bond on abrasive grains, realize the regulation and control of the structure and performance of the abrasive tool by adjusting the holding force, obtain an abrasive tool with suitable holding force, and solve the problem that the holding force cannot be directly measured provide theoretical guidance for the preparation of high-efficiency, high-speed, high-precision abrasive tools

Method used

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  • Detection method for performance of ceramic combination agent abrasive tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. Assemble the mold and put in 15 grams of Al 2 o 3 -Na 2 O-B 2 o 3 -SiO 2 Basic vitrified bond, compacted with a press plate.

[0026] b. Take the center line of a single corundum abrasive grain with a radius of 1 mm as the center line to mark a horizontal line, and draw two upper and lower marks at a distance of 2 / 3 mm from the horizontal line.

[0027] c. Insert the lower end of the above-marked corundum ball abrasive grains into the middle of the vitrified bond block in step a, and press the upper end mark of the abrasive grains into the bond block completely.

[0028] d. Carry out belt mold curing for the mold assembled above, that is, raise the temperature from room temperature to 250°C at a heating rate of 5°C / min and keep it warm for 1 hour, then raise the temperature to 250°C at a heating rate of 4.5°C / min and keep it warm for 2 Hours, the temperature was raised to 720°C at a heating rate of 5.5°C / min and kept for 2.5 hours, and then cooled to room tempe...

Embodiment 2

[0032] a. Assemble the mold and put in 15 grams of Al 2 o 3 -Na 2 O-B 2 o 3 -SiO 2 Basic vitrified bond, compacted with a press plate.

[0033] b. Take the center line of a single corundum abrasive grain with a radius of 2 mm as the center line to mark a horizontal line, and draw two marks at a distance of 4 / 3 mm from the horizontal line.

[0034] c. Insert the lower end of the above-marked corundum ball abrasive grains into the middle of the vitrified bond block in step a, and press the upper end mark of the abrasive grains into the bond block completely.

[0035] d. Carry out belt mold curing for the mold assembled above, that is, raise the temperature from room temperature to 250°C at a heating rate of 5°C / min and keep it warm for 1 hour, then raise the temperature to 250°C at a heating rate of 4.5°C / min and keep it warm for 2 Hours, the temperature was raised to 720°C at a heating rate of 5.5°C / min and kept for 2.5 hours, and then cooled to room temperature to obtain...

Embodiment 3

[0039] a. Assemble the mold and put in 15 grams of Al 2 o 3 -Na 2 O-B 2 o 3 -SiO 2 Basic vitrified bond, compacted with a press plate.

[0040] b. Take the center line of a single corundum ball abrasive grain with a radius of 3 mm as the center line to mark a horizontal line, and draw two upper and lower marks at a distance of 2 mm from the horizontal line.

[0041] c. Insert the lower end of the above-marked corundum ball abrasive grains into the middle of the vitrified bond block in step a, and press the upper end mark of the abrasive grains into the bond block completely.

[0042] d. Carry out belt mold curing for the mold assembled above, that is, raise the temperature from room temperature to 250°C at a heating rate of 5°C / min and keep it warm for 1 hour, then raise the temperature to 250°C at a heating rate of 4.5°C / min and keep it warm for 2 Hours, the temperature was raised to 720°C at a heating rate of 5.5°C / min and kept for 2.5 hours, and then cooled to room te...

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Abstract

The invention discloses a detection method for performance of a ceramic combination agent abrasive tool, and belongs to the technical field of abrasives. The detection method comprises the main stepsof assembling a die, inputting a ceramic combination agent, and performing compaction; making a horizontal line mark by taking a spherical center of a single corundum ball-milling particle with radiusbeing R millimeters as a central line, and drawing an upper mark and a lower mark at a position at a distance with a horizontal line by 2/3R millimeters; inserting a lower end of the marked milling particle to a right middle position of a combination agent block, and completely pressing the upper mark of the milling particle into the combination agent block; performing curing, demolding and polishing; and placing a test sample on an universal experiment machine for test, analyzing a stress-strain curve of the test sample, and recording obviously-deformed force, namely a force required by themilling particles instantaneously broken from the combination agent, of the test sample. The detection method has the beneficial effects of time and labor saving and accurate test result and is easyto operate, the problem that a handheld force is difficult to measure is solved, and theoretical guidance is provided for fabrication of a high-efficiency, high-speed and high-accuracy abrasive tool.

Description

Technical field [0001] The patent of the present invention relates to the technical field of abrasives and abrasive tools, in particular to a method for detecting the holding force of a vitrified bond on corundum abrasive grains. Background technique [0002] Vitrified bond abrasives have the characteristics of high strength, good heat resistance, less clogging during grinding, and small thermal expansion, and are widely used in various fields. With the development of science and technology, the abrasive tool industry also has higher requirements. In the future development process, vitrified bonded abrasive tools have better application prospects due to their unique and excellent performance, but the disadvantage is that abrasive tools In the process of use, the bonding agent has insufficient holding force on the abrasive grains, causing the abrasive grains to fall off easily. [0003] The performance of abrasive tools mainly includes the hardness of abrasive tools, the str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N1/36
CPCG01N1/36G01N3/08G01N2001/366
Inventor 栗正新王丽晶余威
Owner HENAN UNIVERSITY OF TECHNOLOGY
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