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Detection method for bonding force of bonding agent on abrasive particles

A detection method and a bonding agent technology, applied in the field of abrasives, 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: 2019-01-11
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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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. Make a horizontal line mark with the center line of a single corundum ball abrasive grain with a radius of 1 mm, and draw two upper and lower marks at a position 2 / 3 mm away from the horizontal line.

[0027] c. Insert the lower ends of the two above-marked corundum ball abrasive grains into the 1 / 3 position of the length of the vitrified bond block in step a, and press the lower end marks of the abrasive grains into the bond block completely.

[0028] d. Evenly sprinkle refractory powder with a mass of 0.10-0.15 grams on the above-mentioned binder block.

[0029] e. Continue to add the same amount of vitrified bond as in step a above the above-mentioned corundum ball abrasive grains, and press it with a pressing plate until the upper end mark of the corundum ball is just completely submerged.

[0030] f. Cold press the above...

Embodiment 2

[0034] 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.

[0035] b. Make a horizontal line mark with the center line of a single corundum ball abrasive grain with a radius of 2 mm as the center line, and draw two upper and lower marks at a position 4 / 3 mm away from the horizontal line.

[0036] c. Insert the lower ends of the two above-marked corundum ball abrasive grains into the 1 / 3 position of the length of the vitrified bond block in step a, and press the lower end marks of the abrasive grains into the bond block completely.

[0037] d. Sprinkle refractory powder with a mass of 0.20-0.30 grams evenly on the above-mentioned binder block.

[0038] e. Continue to add the same amount of vitrified bond as in step a above the above-mentioned corundum ball abrasive grains, and press it with a pressing plate until the upper end mark of the corundum ball is just completely submerged.

[0039] f. C...

Embodiment 3

[0043] 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.

[0044] b. Make a horizontal line mark with the center line of a single corundum ball abrasive grain with a radius of 3 mm as the center line, and draw two upper and lower marks at a position 2 mm away from the horizontal line.

[0045] c. Insert the lower ends of the two above-marked corundum ball abrasive grains into the 1 / 3 position of the length of the vitrified bond block in step a, and press the lower end marks of the abrasive grains into the bond block completely.

[0046] d. Evenly sprinkle refractory powder with a mass of 0.30-0.45 grams on the above-mentioned binder block.

[0047] e. Continue to add the same amount of vitrified bond as in step a above the above-mentioned corundum ball abrasive grains, and press it with a pressing plate until the upper end mark of the corundum ball is just completely submerged.

[0048] f. Col...

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Abstract

The invention discloses a detection method for bonding force of a bonding agent on abrasive particles, and belongs to the technical field of abrasives and grinding machines. The detection method comprises the main steps that a mold is assembled and added with ceramic bond, and compacting is performed; a horizontal line mark is made by using the centre of sphere of a single corundum sphere abrasiveparticle with a radius of R mm as a center line, and upper and lower marks are drawn at a distance of 2 / 3R mm from the horizontal line; the lower ends of two marked abrasive particles are separatelyinserted into the 1 / 3 length of a binding agent block, and the marks at the lower ends of the abrasive particles are pressed completely into the binding agent block; fire-resistant powder with the mass of 10%-15% of R grams is sprinkled on the bonding agent block; the same mass of ceramic binder is continued to add on the abrasive particles and corundum powder, compacting is performed until marksat the upper end of the corundum sphere are just immersed; cold-press forming, demoulding, polishing treatment are performed and then the corundum sphere is placed in a universal testing machine for tensile testing; and tensile force at which the test specimen is significantly deformed is recorded. The detection method has the beneficial effects that easy operation, time saving, labor saving and accurate test results are achieved; and the problem that the bonding force is difficult to directly measure is solved, and theoretical guidance is provided for preparing high-efficiency, high-speed andhigh-precision grinding machines.

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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IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 栗正新王丽晶余威
Owner HENAN UNIVERSITY OF TECHNOLOGY
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