公开(公告)号：US5976240A

公开(公告)日：1999-11-02

申请号：US925206

申请日：1997-09-08

Applicant: Thomas F. Vezza

Inventor： Thomas F. Vezza

IPC: C04B14/10 ,  C04B18/14 ,  C04B28/06 ,  C04B35/634 ,  C04B35/66 ,  C04B40/00 ,  C04B7/32

CPC classification number: C04B35/63424 ,  C04B14/106 ,  C04B35/632 ,  C04B35/66 ,  C04B40/0039 ,  C04B2235/3418 ,  Y02W30/92 ,  Y10S106/01

Abstract: An additive for reducing the calcium aluminate cement content in a refractory mix containing calcium aluminate cement. The additive is comprised of about 80% by weight amorphous, powdered metakaolin, the metakaolin having a mean particle size of less than about 3.0 microns, and about 20% by weight microsilica, the microsilica having a mean particle size of less than 45 microns.

Abstract translation: 一种用于在含有铝酸钙水泥的耐火混合物中降低铝酸钙水泥含量的添加剂。 该添加剂由约80％重量的无定形粉末偏高岭土，平均粒度小于约3.0微米的偏高岭土和约20％重量的微硅粉组成，微粉体的平均粒度小于45微米。

公开(公告)号：US5972102A

公开(公告)日：1999-10-26

申请号：US739428

申请日：1996-10-29

Applicant: Thomas F. Vezza

Inventor： Thomas F. Vezza

IPC: C04B28/06 ,  C04B35/63 ,  C04B35/66 ,  C04B35/43

CPC classification number: C04B35/66 ,  C04B28/06 ,  C04B35/6303 ,  C04B2111/1043 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3427 ,  C04B2235/3826 ,  C04B2235/422

Abstract: This invention relates to cement-free refractories exhibiting high green strength, improved corrosion resistance, and improved magnesium oxide hydration resistance useful as refractory castables for steel ladles, slag contact areas, ladle sidewalls and bottoms, and the like and as precast refractory shapes, such as well blocks, nest blocks, and the like. More particularly, this invention is directed hydraulically-bonded monolithic refractories containing a calcium oxide-free binder comprised of a hydratable alumina source and magnesium oxide and which exhibit high green strength, improved corrosion resistance, improved magnesium oxide hydration resistance, and controllable work and set times.

Abstract translation: 本发明涉及具有高生长强度，改善的耐腐蚀性和改善的氧化镁水合阻力的无水泥耐火材料，其可用作钢包as，熔渣接触区域，浇包侧壁和底部等的耐火浇注料，并且作为预制耐火材料形状，例如 以及块，嵌套块等。 更具体地说，本发明涉及含有不含氧化钙的粘结剂（由可水合的氧化铝源和氧化镁组成）并且具有高生坯强度，改进的耐腐蚀性，改善的氧化镁水合阻力以及可控制的工作和设定的液压粘结的整体耐火材料 次

公开(公告)号：US5135896A

公开(公告)日：1992-08-04

申请号：US429759

申请日：1989-10-31

Applicant: Thomas F. Vezza

Inventor： Thomas F. Vezza

IPC: C04B35/101 ,  C04B35/111

CPC classification number: C04B35/111

Abstract: A high alumina ceramic composition has controlled small amounts of MgO and CaO. When refractories made from the composition are fired, the alumina and MgO react to form spinel. The CaO promotes such reaction while minimizing undesirable expansion, and results in a refractory having significantly improved hot strength and other desirable physical properties.

公开(公告)号：US4639474A

公开(公告)日：1987-01-27

申请号：US560043

申请日：1983-12-08

Applicant: Thomas F. Vezza

Inventor： Thomas F. Vezza

IPC: C04B35/52 ,  C04B35/565 ,  C04B35/634 ,  C04B35/66 ,  C21C7/00

CPC classification number: C04B35/63472 ,  C04B35/52 ,  C04B35/565 ,  C04B35/632 ,  C04B35/66 ,  C04B2111/00887 ,  C04B2235/422 ,  C04B2235/9676

Abstract: A monolithic refractory composition having relatively high thermal conductivity and a relatively high degree of water insolubility consisting essentially of, by weight, 50-75% coarse grain flake graphite; 5-30% fine grain flake graphite; and the remainder crude clay; and the addition based upon the total weight of said mix of 10-25% liquid phenolic resin in combination with an alcoholic solvent, and a resin curing agent.

Abstract translation: 一种整体耐火材料组合物，具有相当高的导热性和相对较高程度的水不溶性，其基本上由50-75％的粗晶片状石墨组成; 5-30％细晶片石墨; 其余为粗粘土; 并且基于所述10-25％液体酚醛树脂与醇溶剂的组合的总重量和树脂固化剂的添加量。