Method for making machinable abrasive greenware

Details Method for making machinable abrasive greenware Method for making machinable abrasive greenware

1991-03-22

1992-08-04

Dixon, Jr., William R.

Abrasive tool making process, material, or composition

Miscellaneous

51298, 264128, 524430, 524612, B24D 300

Patent

active

051355450

ABSTRACT:
The present invention employs poly(ethyloxazoline) as a temporary binder and lubricant during the preparation of greenware articles. According to the present invention, molten poly(ethyloxazoline) promotes the compressibility of the powder used to form the greenware article, thus improving the density and strength of both the greenware and the abrasive article. The molten poly(ethyloxazoline) acts as a lubricant to permit a more efficient grain rearrangement under applied pressure and thereby increases the average density of the greenware article by 6 to 8 percent as compared to standard cold pressing.

REFERENCES:
patent: 2309463 (1943-01-01), Lombard et al.
patent: 2312392 (1943-03-01), Daniels
patent: 2361784 (1944-10-01), Melton et al.
patent: 2423293 (1947-07-01), Ciell
patent: 4662897 (1987-05-01), Atikinson et al.
patent: 4830994 (1989-05-01), Schuetz
patent: 4867759 (1989-09-01), Tiefenbach, Jr. et al.

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