公开(公告)号：US5366935A

公开(公告)日：1994-11-22

申请号：US209919

申请日：1994-03-14

Applicant: Mohammad A. Alim ,  Karen C. Beal

Inventor： Mohammad A. Alim ,  Karen C. Beal

IPC: C03C8/14 ,  C03C8/16

CPC classification number: C03C8/14 ,  C03C8/16

Abstract: There is disclosed a passivating coating composition suitable for application as a collar to metal oxide varistor valve block cylindrical surfaces comprising a mixture of 64-74 parts by weight of a glass powder, 22-35 parts by weight of water, and 0.5-2 parts by weight of an additive comprising fumed silica, clay and urea.

Abstract translation: 公开了一种钝化涂料组合物，其适用于作为金属氧化物变阻器阀座圆柱形表面的套环，其包含64-74重量份的玻璃粉末，22-35重量份的水和0.5-2重量份的混合物 的包含热解法二氧化硅，粘土和尿素的添加剂。

公开(公告)号：US5854586A

公开(公告)日：1998-12-29

申请号：US932948

申请日：1997-09-17

Applicant: April D. McMillan ,  Frank A. Modine ,  Robert J. Lauf ,  Mohammad A. Alim ,  Gerald D. Mahan ,  Miroslaw Bartkowiak

Inventor： April D. McMillan ,  Frank A. Modine ,  Robert J. Lauf ,  Mohammad A. Alim ,  Gerald D. Mahan ,  Miroslaw Bartkowiak

IPC: H01C7/112 ,  H01C7/10

CPC classification number: H01C7/112

Abstract: A varistor includes a Bi-free, essentially homogeneous sintered body of a ceramic composition including, expressed as nominal weight %, 0.2-4.0% oxide of at least one rare earth element, 0.5-4.0% Co.sub.3 O.sub.4, 0.05-0.4% K.sub.2 O, 0.05-0.2% Cr.sub.2 O.sub.3, 0-0.2% CaO, 0.00005-0.01% Al.sub.2 O.sub.3, 0-2% MnO, 0-0.05% MgO, 0-0.5% TiO.sub.3, 0-0.2% SnO.sub.2, 0-0.02% B.sub.2 O.sub.3, balance ZnO.

Abstract translation: 一种变阻器包括一种陶瓷组合物的Bi-free基本上均匀的烧结体，其包括以标称重量％表示的至少一种稀土元素的氧化物为0.2-4.0％，Co3O4为0.5-4.0％，Co3O4为0.05-0.4％，K2O为0.05 -0.2％Cr 2 O 3，0-0.2％CaO，0.00005-0.01％Al 2 O 3，0-2％MnO，0-0.05％MgO，0-0.5％TiO 3，0-0.2％SnO 2，0-0.02％B 2 O 3，余量ZnO。

公开(公告)号：US5387432A

公开(公告)日：1995-02-07

申请号：US265061

申请日：1994-06-28

Applicant: Mohammad A. Alim ,  Karen C. Beal

Inventor： Mohammad A. Alim ,  Karen C. Beal

IPC: C03C8/14 ,  C03C8/16 ,  H01C7/10

CPC classification number: C03C8/14 ,  C03C8/16

Abstract: There is disclosed a passivating coating composition suitable for application as a collar to metal oxide varistor valve block cylindrical surfaces comprising a mixture of 64-74 parts by weight of a glass powder, 22-35 parts by weight of water, and 0.5-2 parts by weight of an additive comprising fumed silica, clay and urea.

Abstract translation: 公开了一种钝化涂料组合物，其适用于作为金属氧化物变阻器阀座圆柱形表面的套环，其包含64-74重量份的玻璃粉末，22-35重量份的水和0.5-2重量份的混合物 的包含热解法二氧化硅，粘土和尿素的添加剂。

公开(公告)号：US5307046A

公开(公告)日：1994-04-26

申请号：US972802

申请日：1992-11-06

Applicant: Mohammad A. Alim

Inventor： Mohammad A. Alim

IPC: C04B14/10 ,  C04B28/34 ,  H01C7/102 ,  H01C7/10 ,  H01C7/13

CPC classification number: C04B14/106 ,  C04B28/346 ,  H01C7/102 ,  C04B2111/00112 ,  C04B2111/00155

Abstract: It is disclosed that the properties of a ceramic mullite-kaolinite based passivating coating composition applied as a collar to metal oxide varistor valve block cylindrical surfaces are improved by including in the coating composition from 0.03 to 15% by weight of the coating composition one or more of the following additive compounds: TiO.sub.2 ; Y.sub.2 O.sub.3 ; ZrO.sub.2 ; ZnO; Boroflux (2ZNO.sup.. 3B.sub.2 O.sub.3.sup.. 7H.sub.2 O; or 3ZnO.sup.. 2B.sub.2 O.sub.3.sup.. 5H.sub.2 O); or Si.sub.3 N.sub.4. The coating composition comprises by dry weight a mixture of 55-85% mullite and 15-45% kaolinite, one or a mixture of the above additive compounds, and sufficient water to form a sprayable slurry. The inclusion of the additive compound results in enhanced contact adhesion between the collar and the metal oxide varistor peripheral surface.

Abstract translation: 公开了通过将涂料组合物中含有0.03至15重量％的涂料组合物的一种或多种包括在涂料组合物中，将金属氧化物变阻器阀座圆柱形表面作为套环施加的陶瓷莫来石 - 高岭石基钝化涂料组合物的性能得到改善 的以下添加剂化合物：TiO2; Y2O3; ZrO2; ZnO; Boroflux（2ZNO.3B2O3.7H2O;或3ZnO.2B2O3.5H2O）; 或Si 3 N 4。 涂料组合物通过干重包含55-85％莫来石和15-45％高岭石，一种或上述添加剂化合物的混合物和足够的水以形成可喷雾浆料的混合物。 包含添加剂化合物导致套环和金属氧化物变阻器外围表面之间的接触粘附性增强。