Substrates for magnetic discs, magnetic discs and process for producing
magnetic discs
    21.
    发明授权
    Substrates for magnetic discs, magnetic discs and process for producing magnetic discs 失效
    用于磁盘,磁盘的基板和用于制造磁盘的工艺

    公开(公告)号:US6086977A

    公开(公告)日:2000-07-11

    申请号:US793255

    申请日:1997-02-21

    摘要: A magnetic disc substrate is provided, which includes a magnetic disc substrate body made of glass and is characterized in that a metal element capable of absorbing light is present in at least a surface portion of the magnetic disc substrate body, and a texture is formed on a surface of the magnetic disc substrate body. Ions of the metal element are dispersed in the surface portion of the magnetic disc substrate, or the metal element is contained in a composition of the glass constituting the magnetic disc substrate in the form of an oxide. The glass is preferably a crystallized glass a Li.sub.2 O--Al.sub.2 O.sub.3 --SiO.sub.2 based crystallized glass, which particularly preferably contains 65 to 85 wt % of SiO.sub.2, 8 to 15 wt % of Li.sub.2 O, 2 to 8 wt % of Al.sub.2 O.sub.3, 1 to 5 wt % of P.sub.2 O.sub.5 and 1 to 10 wt % of ZrO.sub.2 and has lithium disilicate (Li.sub.2 O.multidot.2SiO.sub.2) as a main crystalline phase.

    摘要翻译: PCT No.PCT / JP96 / 01732 Sec。 371日期1997年2月21日 102(e)1997年2月21日PCT PCT 1996年6月21日PCT公布。 公开号WO97 / 01164 日本1997年1月9日提供一种磁盘基板,其包括由玻璃制成的磁盘基板主体,其特征在于,在所述磁盘基板主体的至少表面部分中存在能够吸收光的金属元件, 在磁盘基板主体的表面上形成纹理。 金属元素的离子分散在磁盘基板的表面部分中,或者金属元素以氧化物的形式包含在构成磁盘基板的玻璃的组成中。 玻璃优选为Li2O-Al2O3-SiO2系微晶玻璃的结晶化玻璃,特别优选含有65〜85重量%的SiO 2,8〜15重量%的Li 2 O,2〜8重量%的Al 2 O 3,1〜5重量% 的P 2 O 5和1〜10重量%的ZrO 2,并且具有二硅酸锂(Li 2 O x SiO 2)作为主要结晶相。

    Method of producing low temperature firing dielectric ceramic
composition containing B.sub.2 O.sub.3
    25.
    发明授权
    Method of producing low temperature firing dielectric ceramic composition containing B.sub.2 O.sub.3 失效
    含B2O3 + B的低温焙烧电介质陶瓷组合物的制造方法

    公开(公告)号:US5458981A

    公开(公告)日:1995-10-17

    申请号:US148861

    申请日:1993-11-08

    摘要: A method of producing a dielectric ceramic composition is disclosed which includes the steps of: preparing a main ceramic composition comprising BaO, TiO.sub.2 and RE.sub.2 O.sub.3 (where RE represents at least one rare earth metal) as major components; calcining a mixture of starting materials which give the main ceramic composition, at a temperature of 1050.degree. C. or higher, to provide a calcined mixture; finely pulverizing the calcined mixture to provide a calcined ceramic powder having an average grain size of not larger than 0.8 .mu.m; and adding, as at least a part of a secondary component, a B.sub.2 O.sub.3 powder or a glass powder containing B.sub.2 O.sub.3, to the main ceramic composition. Also disclosed are a dielectric resonator and dielectric filter using such a dielectric ceramic composition as produced according to the above method, and a method of producing such a dielectric resonator or filter.

    摘要翻译: 公开了一种制备电介质陶瓷组合物的方法,其包括以下步骤:制备包含BaO,TiO 2和RE 2 O 3(其中RE表示至少一种稀土金属)作为主要组分的主要陶瓷组合物; 在1050℃或更高的温度下煅烧得到主要陶瓷组合物的起始材料的混合物,以提供煅烧混合物; 将煅烧后的混合物粉碎,得到平均粒径不大于0.8μm的煅烧陶瓷粉末; 并将作为至少一部分次要成分的B 2 O 3粉末或含有B 2 O 3的玻璃粉末添加到主要陶瓷组合物中。 还公开了使用根据上述方法制造的这种介电陶瓷组合物的介质谐振器和介质滤波器以及制造这种介质谐振器或滤波器的方法。

    Continuously treating line for steel bands having a heating furnace by
directly flaming
    29.
    发明授权
    Continuously treating line for steel bands having a heating furnace by directly flaming 失效
    通过直接燃烧连续处理带有加热炉的钢带

    公开(公告)号:US4760995A

    公开(公告)日:1988-08-02

    申请号:US27224

    申请日:1987-03-02

    IPC分类号: C21D9/56

    CPC分类号: C21D9/56

    摘要: This invention relates to a continuously treating line for a steel band, having a heating furnace by directly flaming. For heating the steel band with causing reduction, the heating furnace of directly flaming system is provided with a plurality of heating burners of reduction system which may form non-equilibrium range of the air and the fuel in a flame, that is, a reduction range, wherein the heating burners are positioned at predetermined arrangement with respect to the steel band and at a certain pitch predetermined in relation with an inner diameter of the burner in a line running direction.The treating line has said heating furnace constructed as mentioned above and a subsequent atmosphere furnace, and said atmosphere furnace may be provided with a sealing chamber having various means for avoiding invasion of the outer air.The line has, in order, a pre-heating furnace, said heating furnace and an indirectly heating furnace, and it may be furnished with intermediate chambers between respective furnaces for preventing the furnace gas from moving, and further may be furnished with an after-burning chamber for perfectly burning a combustion exhaust gas to be supplied to the pre-heating chamber.

    摘要翻译: PCT No.PCT / JP86 / 00352 Sec。 371日期1987年3月2日 102(e)日期1987年3月2日PCT申请日1986年7月10日PCT公布。 公开号WO87 / 00555 日本1987年1月29日。本发明涉及一种钢带的连续处理线,其具有通过直接燃烧的加热炉。 为了减少钢带的加热,直接燃烧系统的加热炉具有多个可在火焰中形成空气和燃料的非平衡范围的还原系统的加热燃烧器,即减少范围 其中,所述加热燃烧器相对于所述钢带以预定的布置定位,并且以相对于所述燃烧器的内径在线运行方向上预定的一定间距定位。 处理管线具有如上所述构造的加热炉和随后的气氛炉,并且所述气氛炉可以设置有具有用于避免外部空气侵入的各种装置的密封室。 该线依次具有预热炉,所述加热炉和间接加热炉,并且可以在相应的炉之间设置有用于防止炉气移动的中间室,并且还可以具有后加热炉, 燃烧室,用于完全燃烧将被供应到预热室的燃烧废气。

    One pack type alicyclic epoxy resin compositions
    30.
    发明授权
    One pack type alicyclic epoxy resin compositions 失效
    一包型脂环族环氧树脂组合物

    公开(公告)号:US4689388A

    公开(公告)日:1987-08-25

    申请号:US824545

    申请日:1986-01-23

    摘要: A curable epoxy resin composition, comprising (1) an alicyclic epoxy resin having an average of more than one epoxy group per molecule, (2) a polybasic acid hydrazide, and (3) a latent curing agent for said epoxy resin which comprises an addition product obtained by reacting (a) a polyfunctional epoxy compound with (b) a compound having at least one functional group in the molecule selected from the group consisting of OH, SH, COOH and CONHNH.sub.2 together with a tertiary amino group, or by reacting said components (a) and (b) with (c) an organic compound which has more than two active hydrogen atoms in the molecule, said reactions occurring under conditions in which the ratio of (a) to (b) or (a) to (b) and (c) ranges from 0.8 to 2.5 equivalents of (a) per equivalent of the total active hydrogen atoms in component (b) and in components (b) and (c), the molar ratio of (c) to (b) being 0.2:1 to 1:1, and said addition product having a softening point of 60.degree. to 180.degree. C.

    摘要翻译: 一种可固化环氧树脂组合物,其包含(1)每分子平均具有多于一个环氧基的脂环族环氧树脂,(2)多元酸酰肼,和(3)所述环氧树脂的潜在性固化剂,其包含加成物 通过使(a)多官能环氧化合物与(b)在选自OH,SH,COOH和CONHNH 2的分子中具有至少一个官能团的化合物与叔氨基反应,或通过使所述 组分(a)和(b)与(c)在分子中具有多于两个活性氢原子的有机化合物,所述反应在(a)至(b)或(a)与( b)和(c)各组分(b)和(b)和(c)中每一当量总活性氢原子的(a)的0.8至2.5当量,(c)与(b) )为0.2:1至1:1,所述加成产物的软化点为60-180℃。