Detection method of holding force of vitrified-bond corundum abrasive tool
A vitrified bond and detection method technology, 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
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Embodiment 1
[0024] a. Assemble the mold and put in 15 grams of Al 2 O 3 -Na 2 O-B 2 O 3 -SiO 2 The basic ceramic bond is pressed into a ceramic bond block under a pressure of 40Mpa.
[0025] b. Place a single corundum abrasive grain with a particle size of 0.1 mm in the middle of the binder block in step a.
[0026] c. Put the above sample in a muffle furnace for curing, that is, heat up from room temperature to 250°C at a heating rate of 5°C / min and keep it for 1 hour, and heat up to 250°C and keep it warm at a heating rate of 4.5°C / min For 2 hours, the temperature was increased to 720°C at a temperature increase rate of 5.5°C / min, and the temperature was kept for 2.5 hours, and then cooled to room temperature to obtain a ceramic bond corundum sample block.
[0027] d. Grind and polish the above samples.
[0028] e. Fix the above sample on the desktop, and the section with the smallest bond block area is vertical to the desktop, that is, the sequence in the field of view is bond-abrasive particl...
Embodiment 2
[0031] a. Assemble the mold and put in 15 grams of Al 2 O 3 -Na 2 O-B 2 O 3 -SiO 2 The basic ceramic bond is pressed into a ceramic bond block under a pressure of 40Mpa.
[0032] b. Place a single corundum abrasive grain with a particle size of 0.2 mm in the middle of the binder block in step a.
[0033] c. Put the above sample in a muffle furnace for curing, that is, heat up from room temperature to 250°C at a heating rate of 5°C / min and keep it for 1 hour, and heat up to 250°C and keep it warm at a heating rate of 4.5°C / min For 2 hours, the temperature was increased to 720°C at a temperature increase rate of 5.5°C / min, and the temperature was kept for 2.5 hours, and then cooled to room temperature to obtain a ceramic bond corundum sample block.
[0034] d. Grind and polish the above samples.
[0035] e. Fix the above sample on the desktop, and the section with the smallest bond block area is vertical to the desktop, that is, the sequence in the field of view is bond-abrasive particl...
Embodiment 3
[0038] a. Assemble the mold and put in 15 grams of Al 2 O 3 -Na 2 O-B 2 O 3 -SiO 2 The basic ceramic bond is pressed into a ceramic bond block under a pressure of 40Mpa.
[0039] b. Place a single corundum abrasive grain with a particle size of 0.3 mm in the middle of the binder block in step a.
[0040] c. Put the above sample in a muffle furnace for curing, that is, heat up from room temperature to 250°C at a heating rate of 5°C / min and keep it for 1 hour, and heat up to 250°C and keep it warm at a heating rate of 4.5°C / min For 2 hours, the temperature was increased to 720°C at a temperature increase rate of 5.5°C / min, and the temperature was kept for 2.5 hours, and then cooled to room temperature to obtain a ceramic bond corundum sample block.
[0041] d. Grind and polish the above samples.
[0042] e. Fix the above sample on the desktop, and the section with the smallest bond block area is vertical to the desktop, that is, the sequence in the field of view is bond-abrasive particl...
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