Process for the preparation of ferrous parts of a color television tube
and furnace for operating such a process
    111.
    发明授权
    Process for the preparation of ferrous parts of a color television tube and furnace for operating such a process 失效
    用于制备用于操作这种方法的彩色电视管和炉的黑色金属部件的方法

    公开(公告)号:US4714497A

    公开(公告)日:1987-12-22

    申请号:US577401

    申请日:1984-02-06

    申请人: Bernard Poncet

    发明人: Bernard Poncet

    摘要: The present invention concerns a process for preparing ferrous parts of a color television tube and a furnace for operating such a process.According to the invention, each ferrous part behind the base of the television tube, is prepared in a single furnace and undergoes successively an annealing, a reduction and an oxidation in three parts of the furnace 3, 4 and 5, in such a way as to eliminate the mechanical stresses, remove the rust and deposit homogeneous and adhesive layers of iron oxides I and II.

    摘要翻译: 本发明涉及一种制备用于操作这种方法的彩色电视管和炉的铁部件的方法。 根据本发明,电视机底座后面的每个黑色金属部件在单个炉中制备并在炉3,4和5的三个部分中依次进行退火,还原和氧化,方式如 消除机械应力,去除锈蚀和沉积氧化铁I和II的均匀和粘合层。

    Oxide whisker growth on contaminated aluminum-containing stainless steel
foil
    112.
    发明授权
    Oxide whisker growth on contaminated aluminum-containing stainless steel foil 失效
    氧化物晶须生长在受污染的含铝不锈钢箔上

    公开(公告)号:US4588449A

    公开(公告)日:1986-05-13

    申请号:US677285

    申请日:1984-12-03

    申请人: David R. Sigler

    发明人: David R. Sigler

    CPC分类号: C23C8/02 C23C8/10

    摘要: In aluminum-containing stainless steel foil, the presence of magnesium impurity in an amount greater than about 0.002 weight percent has been found to inhibit formation of a preferred oxide surface layer characterized by multitudinous oxide whiskers of a type suitable for tightly bonding an applied coating. A method for purifying magnesium-contaminated foil comprises heating the foil to selectively vaporize the magnesium while avoiding incipient melting of the base alloy, preferably between about 1000.degree. C. and 1150.degree. C. The magnesium vapors escape into a suitable ambient phase such as a vacuum or a dry hydrogen gas. Thereafter, the foil is oxidized under conditions effective to produce the desired whiskers. A preferred steel is composed of an iron-base alloy comprising about 15 to 25 weight percent chromium and 3 to 6 weight percent aluminum, and optionally may contain cerium or yttrium in an amount effective to promote oxide adherence.

    摘要翻译: 在含铝不锈钢箔中,发现镁杂质的存在量大于约0.002重量%已被发现抑制了一种优选的氧化物表面层的形成,该氧化物表面层的特征在于适合于紧密粘合所涂覆的涂层的多种氧化物晶须。 用于净化镁污染的箔的方法包括加热箔以选择性地蒸发镁,同时避免基础合金的初始熔化,优选在约1000℃至1150℃之间。镁蒸气逸出到合适的环境相中,例如 真空或干燥氢气。 此后,在有效产生所需要的晶须的条件下氧化箔。 优选的钢由含有约15至25重量%铬和3至6重量%铝的铁基合金组成,并且任选地可含有有效促进氧化物粘附的量的铈或钇。

    Preparing selective surfaces for solar collectors by dry oxidation and
selective surfaces so obtained
    113.
    发明授权
    Preparing selective surfaces for solar collectors by dry oxidation and selective surfaces so obtained 失效
    通过干燥氧化和如此获得的选择性表面为太阳能收集器准备选择性表面

    公开(公告)号:US4574778A

    公开(公告)日:1986-03-11

    申请号:US590646

    申请日:1984-03-19

    摘要: Selective surfaces for photothermal solar collectors consisting of a nickel support, preferably commercial nickel of 99.5% purity, a layer of a porous nickel oxide of about 0.2 .mu.m covering the metallic support, the layer of porous nickel oxide being covered with asperities in the form of a network of nickel oxide discs in which the major portions are oriented at an angle with respect to the vertical. The network of discs has a thickness of about 2 .mu.m. The preparation of these selective surfaces is carried out in the following manner. Thin nickel plates are subjected to a heat treatment by heating and oxidizing in an oxidant gas during a short period of time at a temperature varying between about 1000.degree. C. and 1100.degree. C. The oxidized nickel plates are reduced at a temperature of about 1100.degree. C. in the presence of a reducing gas until the metallic state is obtained. The surrounding temperature is thereafter lowered between 810.degree. and 830.degree. C. and an oxidizing gas is circulated around the plates, at a rate of flow which is sufficient to flush away the reducing gas. The plates are rapidly cooled down to room temperature to give the intended selective surfaces.

    摘要翻译: 由镍载体,优选纯度为99.5%的商业镍,一层覆盖金属载体的约0.2μm的多孔氧化镍层组成的光热太阳能收集器的选择性表面,多孔氧化镍层以粗糙的形式覆盖 的主要部分相对于垂直方向成一定角度的镍氧化物盘网络。 光盘网络的厚度约为2μm。 这些选择性表面的制备以如下方式进行。 薄镍板通过在短时间内在约1000℃至1100℃之间变化的温度下在氧化剂气体中加热和氧化进行热处理。氧化的镍板在约1100℃的温度下还原 在还原气体存在下直到获得金属状态。 此后,周围的温度在810℃至830℃之间降低,并且氧化气体以足以冲洗还原气体的流量的速率在板周围循环。 将板快速冷却至室温以得到所需的选择性表面。

    Method for finishing matted surface on a metal-made article for personal
ornament
    114.
    发明授权
    Method for finishing matted surface on a metal-made article for personal ornament 失效
    用于个人饰品的金属制品的表面处理方法

    公开(公告)号:US4507184A

    公开(公告)日:1985-03-26

    申请号:US664298

    申请日:1984-10-24

    CPC分类号: C23C8/02 B44F9/10 C25F3/16

    摘要: The invention provides a means for solving the difficult problem of the deposition of stain in the recesses to cause loss of beautiful appearance on the matted surface of an article for personal ornament made of titanium, zirconium or an alloy thereof formed by honing or barrel finishing. The method comprises the steps of (a) forming a first matted surface with microscopically fine protrusions and recesses on the article by honing or barrel finishing, (b) forming a hardened layer on the matted surface by nitriding, carbonizing, boriding or oxidizing, (c) partially removing the hardened layer covering the protrusions on the matted surface by a first electrolytic or chemical polishing, (d) forming a second matted surface on the article by honing or barrel finishing, and (e) partially removing the surface layer at the protrusions by a second electrolytic or chemical polishing to smoothen the surface leaving a sandy appearance.

    摘要翻译: 本发明提供了一种解决凹陷中污渍沉积困难问题的方法,从而通过珩磨或滚筒精加工形成的钛,锆或其合金制造的个人装饰物的无光表面失去美观。 该方法包括以下步骤:(a)通过珩磨或滚筒精加工在所述制品上形成具有显微细微突起和凹陷的第一无光泽表面,(b)通过氮化,碳化,硼化或氧化在无序表面上形成硬化层( c)通过第一次电解或化学抛光部分地去除覆盖在无光表面上的突起的硬化层,(d)通过珩磨或筒整理在所述制品上形成第二无序表面,以及(e) 突起通过第二次电解或化学抛光来平滑表面,留下沙质外观。

    Process for carburizing high alloy steels
    115.
    发明授权
    Process for carburizing high alloy steels 失效
    高合金钢渗碳工艺

    公开(公告)号:US3885995A

    公开(公告)日:1975-05-27

    申请号:US34971573

    申请日:1973-04-10

    申请人: BOEING CO

    CPC分类号: C23C8/02 C23C8/34

    摘要: A process for carburizing high alloy steels comprises heating the steel at a high temperature in an oxidizing atmosphere to form a high temperature oxide on the steel surface and carburizing the steel containing the high temperature oxide. Once the high temperature oxide is formed on the steel surface, the steel can be carburized at any time thereafter.

    摘要翻译: 渗碳高合金钢的方法包括在氧化气氛中高温加热钢,在钢表面形成高温氧化物,并对含有高温氧化物的钢进行渗碳。 一旦在钢表面上形成高温氧化物,此后可以随时渗碳。

    Corrosion resistant tin-free steel and method for producing same
    116.
    发明授权
    Corrosion resistant tin-free steel and method for producing same 失效
    耐腐蚀的无锡钢及其生产方法

    公开(公告)号:US3634147A

    公开(公告)日:1972-01-11

    申请号:US3634147D

    申请日:1969-11-20

    摘要: A superior corrosion-resistant tin-free steel is produced by vacuum depositing high-purity metallic chromium onto a thoroughly cleaned steel surface at a temperature within the range 500*1,000* F., and thereafter, before the coated steel is cooled, exposing the freshly deposited coating to an oxidizing atmosphere while the steel is at a temperature of 600* to 1,000* F. The resulting vigorous high-temperature oxidation of exposed steel at cracks and pores to magnetite produces a continuous pore-free and crack-free coating which is lustrous and metallic in appearance and provides exceptional resistance to corrosion.

    摘要翻译: 通过在500°-1000°F的温度范围内将高纯度金属铬真空沉积到彻底清洁的钢表面上,然后在涂覆钢被冷却之前,暴露出来,生产出优良的耐腐蚀无锡钢 当钢的温度在600°至1000°F的温度下,将新沉积的涂层转化为氧化气氛。暴露的钢在裂纹和孔隙下对磁铁矿的剧烈高温氧化产生连续的无孔和无裂纹涂层 其光泽和金属外观,并提供卓越的耐腐蚀性。