Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1990-10-09
1992-03-17
Tentoni, Leo B.
Gas and liquid contact apparatus
Fluid distribution
Pumping
264349, 423448, 423449, 523351, 524398, 524435, 524496, 524783, 524847, C01B 3102, C01B 3104
Patent
active
050966332
ABSTRACT:
A process for producing a diaphragm for a speaker of fully carbonaceous materials which has the steps of mixing carbon powder in an organic binder carbonized after calcining, kneading the composition to uniformly mix and disperse, preliminarily molding it in a sheet shape, molding the preliminarily molded material in a diaphragm shape, insolubilizing, infusibilizing the mixture and calcining the mixture in an inert atmosphere, wherein the composition contains a titanate coupling agent. Thus, a rigid bonding strength is provided in the boundary between the organic binder and the carbon powder in the green state of the composition, and the mixture is calcined to industrially simply and inexpensively produce a diaphragm having a high hardness, a high elasticity, a high strength, a light weight, an adequately large internal loss (and thus less deformation by an external force) small distortion of sound, wide reproducing sound range, distinct sound quality and adapted for a digital audio. The process allows the mixing of a large quantity of carbon powder to perform excellent characteristics of the carbon powder by a composite rule.
Mitsubishi Pencil Co. Ltd.
Tentoni Leo B.
LandOfFree
Process of making a diaphragm of carbonaceous material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of making a diaphragm of carbonaceous material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making a diaphragm of carbonaceous material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1473947