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    Pyrophoric iron product and process of making
    43.
    发明授权
    Pyrophoric iron product and process of making 失效
    发火铁产品及其制造工艺

    公开(公告)号：US4824482A

    公开(公告)日：1989-04-25

    申请号：US707656

    申请日：1985-03-04

    申请人： Alfonso L. Baldi

    发明人： Alfonso L. Baldi

    IPC分类号： C08F283/01 ,  C09D5/04 ,  C23C10/02 ,  C23C10/06 ,  C23C10/30 ,  C23C10/34 ,  C23C10/42 ,  C23C10/56 ,  C23C10/60 ,  C23C12/02 ,  C23C22/74 ,  B22F1/00

    CPC分类号： C23C22/74 ,  C08F283/01 ,  C09D5/04 ,  C23C10/02 ,  C23C10/06 ,  C23C10/30 ,  C23C10/34 ,  C23C10/42 ,  C23C10/56 ,  C23C10/60 ,  C23C12/02 ,  H05K2201/0209 ,  Y02T50/67 ,  Y10T428/12493 ,  Y10T428/12743 ,  Y10T428/1275 ,  Y10T428/12757

    摘要： Diffusion aluminizing, when applied to titanium is effected with little or no activator to produce more uniform case and less etching.Workpieces are very rapidly pack-diffusion coated by using an excess of energizers in the pack, heating the retort containing the packed workpieces at a rate that brings the workpieces to diffusion-coating temperature and then completing the diffusion coating, all in less than 50 minutes, then cooling the retort.Diffusion aluminizing can also be applied to foils and powder to make pyrophoric product after leaching out much of the introduced aluminum. Powder can also be diffusion boronized. Pyrophoric boron-containing iron or nickel powder mixed with Ba(NO.sub.3).sub.2 will ignite to cause generation of large quantity of NO.sub.2 gas, and generation is improved when powdered boron and/or an oxidizer like NaClO.sub.3 is added. Pyrophoric articles containing substantial alloyed boron can be placed in good thermal contact with cool heat sink and exposed to air to stabilize them so that they do not begin to pyrophorically react unless heated to over 70.degree. C. Magnesium powder mixed with powdered boron and Ba(NO.sub.3).sub.2 makes explosive composition.

    摘要翻译： 当施加到钛上时，扩散镀铝是用很少的或没有活化剂来实现的，以产生更均匀的情况和较少的蚀刻。 工件通过在包装中使用过量的增压器非常迅速地包装扩散涂层，以包含工件的蒸馏器以使工件具有扩散涂覆温度然后在不到50分钟内完成扩散涂层的速度加热 ，然后冷却蒸馏水。 扩散镀铝也可以应用于箔和粉末，以在浸出大部分引入的铝后制成发火产品。 粉末也可以扩散硼化。 与Ba（NO 3）2混合的发火含硼铁或镍粉末将点燃以产生大量的NO 2气体，并且当添加粉末状的硼和/或氧化剂如NaClO 3时，产生得到改善。 含有大量合金硼的发火制品可以放置在与冷却散热器良好的热接触并暴露于空气中以使它们稳定，使得除非加热至70℃以上它们不会开始自燃反应。与粉末状硼和Ba（ NO3）2使炸药成分。

    Stripping of diffusion treated metals
    44.
    发明授权
    Stripping of diffusion treated metals 失效
    剥离扩散处理的金属

    公开(公告)号：US4327134A

    公开(公告)日：1982-04-27

    申请号：US147191

    申请日：1980-05-06

    申请人： Alfonso L. Baldi

    发明人： Alfonso L. Baldi

    IPC分类号： C23C10/42 ,  C23C10/56 ,  C23C10/58 ,  C23C10/60 ,  C23C12/02 ,  C23F1/44 ,  C23F1/00

    CPC分类号： C23C10/56 ,  C23C10/42 ,  C23C10/58 ,  C23C10/60 ,  C23C12/02 ,  C23F1/44

    摘要： Chromized nickel- and cobalt-based superalloys have alphachrome phase formed during chromizing, and the amount of that phase is diminished by one or more treatments with alkali-permanganate solution and intervening removal of permanganate reaction product film as by acid dip. A kit of such solutions can be prepared. Low-alloy steel steam boiler tubing can have chromized interior and aluminized exterior, and long lengths chromized without a perfectly sealed retort around it can have end caps fitted with extra pack to reduce oxygen penetration to interior. Chain saw cutter blades can be chromized and carburized. Stripping of aluminized coatings from superalloys with fluoride-containing nitric acid solution is improved by follow-up treatment with fluoride-free nitric acid solution. Smut that forms on ferrous surface during cleaning is chemically removed by first depositing a nickel flash plating on smut-containing surface, and then dissolving the nickel plating by treatment with aqueous nitric acid containing a little halide ion.

    摘要翻译： 镀镍和钴基超级合金在铬化过程中形成了铝合金相，并且通过用碱金属高锰酸盐溶液进行一次或多次处理并且通过酸浸进行介入去除高锰酸盐反应产物膜而减少该相的量。 可以制备一套这样的解决方案。 低合金钢蒸汽锅炉管道可以镀铬内部和镀铝外部，并且长时间镀铬，而没有完全密封的蒸馏罐可以使用端盖安装额外的包装，以减少氧气渗透到内部。 链锯切割刀片可以镀铬和渗碳。 通过用无氟化物硝酸溶液进行后续处理，提高了含氟化合物硝酸溶液从超级合金中脱铝镀层。 在清洗过程中，在黑色金属表面形成的污点，通过首先在含黑渣的表面上沉积镍闪电镀，然后通过用含有少量卤化物的硝酸水溶液处理来溶解镀镍，进行化学除去。

    Diffusion treatment of metal
    45.
    发明授权
    Diffusion treatment of metal 失效
    金属扩散处理

    公开(公告)号：US3958047A

    公开(公告)日：1976-05-18

    申请号：US466908

    申请日：1974-05-03

    申请人： Alfonso L. Baldi

    发明人： Alfonso L. Baldi

    IPC分类号： B01J35/04 ,  C23C10/02 ,  C23C10/48 ,  C23C10/56 ,  C23C10/60 ,  C23C9/02

    CPC分类号： B01J35/04 ,  C23C10/02 ,  C23C10/48 ,  C23C10/56 ,  C23C10/60 ,  F05B2250/62 ,  Y02T50/67

    摘要： In the pack diffusion coating of chromium into the surface of a superalloy, the formation of undesirable oxide inclusion is reduced when the diffusion coating pack contains at least about 3% Ni.sub.3 Al. Also the formation of alpha-chromium is reduced when the pack diffusion is carried out in a retort effectively not over five inches in height. Pack aluminizing in the presence of chromium makes a very effective aluminum-and chromium-containing top coating over platinum plated or platinum coated nickel-base superalloys. Aluminized nickel can also have its aluminum attacked and at least partially removed with aqueous caustic to leave a very highly active catalytic surface. Pack diffusion can also be arranged to simultaneously provide different coatings in different locations by using different pack compositions in those locations. An aluminizing pack containing a large amount of chromium provides a thinner aluminized case than an aluminizing pack containing less chromium, or less chromium and some silicon. A cobalt-chromium pack deposits essentially a chromized case when energized with a chloride, but deposits large amounts of cobalt along with chromium when energized with an iodide. Even more chromium with large amounts of cobalt are deposited when the energizer is a mixture of iodide and chloride. Depletion of diffusible material from workpieces heated in a powder-pack can also be readily controlled by adjusting the pack composition, and such depletion from cobalt-base superalloys very simply provides a surface on which aluminizing produces a highly impact-resistant coating.

    摘要翻译： 在将包含在超级合金表面中的铬扩散涂层中，当扩散涂层包含至少约3％Ni 3 Al时，形成不期望的氧化物夹杂物减少。 当包装扩散在有效地不超过五英寸高的蒸馏器中进行时，还可以减少α-铬的形成。 在镀铬的情况下，镀铝后，镀铂或镀铂镍基超级合金上的铝和铬的顶涂层非常有效。 镀铝的镍还可以使铝侵蚀，并用苛性碱水溶液至少部分去除以留下非常高活性的催化剂表面。 包装扩散还可以被布置成通过在那些位置使用不同的包装组合来在不同位置同时提供不同的涂层。 含有大量铬的镀铝包装提供比含有较少铬或更少的铬和一些硅的镀铝包装的更薄的镀铝箱。 当用氯化物通电时，钴 - 铬组合物基本上沉积有铬化的壳体，但是当用碘化物通电时，它们与铬一起沉积大量的钴。 当激发剂是碘化物和氯化物的混合物时，沉积更多的具有大量钴的铬。 通过调整包装组合物也可以容易地控制从粉末包装中加热的工件中消散可扩散材料，并且这种由钴基超级合金的这种消耗非常简单地提供了在其上镀铝产生高抗冲击性涂层的表面。

    High temperature resistant diffusion coating
    46.
    发明授权
    High temperature resistant diffusion coating 失效
    耐高温扩散涂层

    公开(公告)号：US3936539A

    公开(公告)日：1976-02-03

    申请号：US304220

    申请日：1972-11-06

    申请人： Alfonso L. Baldi

    发明人： Alfonso L. Baldi

    IPC分类号： C23C10/56 ,  C23C10/58 ,  C23C10/60 ,  C23F1/44 ,  C23C13/02

    CPC分类号： C23F1/44 ,  C23C10/56 ,  C23C10/58 ,  C23C10/60

    摘要： Dispersion-strengthened nickel and nichrome protected by an aluminum diffusion coating over a chromium diffusion coating, have their resistance to oxidation at extremely high temperatures increased by including cobalt with the chromium diffusion coating. Aluminum diffusion can be effected with an energizer kept out of contact with workpieces by being confined in porous containers.

    摘要翻译： 通过铬扩散涂层上的铝扩散涂层保护的分散强化的镍和镍铬合金通过包括钴与铬扩散涂层一起增加了它们在极高温度下的抗氧化性。 铝扩散可以通过限制在多孔容器中而与工件保持脱离接触的激发器来实现。

    Heat-resistant ti alloy material excellent in resistance to corrosion at high temperature and to oxidation
    50.
    发明申请
    Heat-resistant ti alloy material excellent in resistance to corrosion at high temperature and to oxidation 失效
    耐高温钛合金材料耐高温腐蚀和氧化

    公开(公告)号：US20050244668A1

    公开(公告)日：2005-11-03

    申请号：US10509028

    申请日：2003-03-25

    申请人： Toshio Narita ,  Takumi Nishimoto

    发明人： Toshio Narita ,  Takumi Nishimoto

    IPC分类号： C22F1/18 ,  C22C14/00 ,  C23C10/16 ,  C23C10/28 ,  C23C10/32 ,  C23C10/48 ,  C23C10/56 ,  C23C10/58 ,  C23C28/00 ,  B32B15/00 ,  C23C16/00

    CPC分类号： C23C28/021 ,  C22C14/00 ,  C23C10/16 ,  C23C10/56 ,  C23C28/028 ,  Y10T428/12458 ,  Y10T428/12743 ,  Y10T428/12806

    摘要： Disclosed is a heat-resistant Ti alloy material excellent in high-temperature corrosion resistance and oxidation resistance, which comprises a base made of a heat-resistant Ti alloy and a surface layer formed on the surface of the base. The surface layer has a multilayer structure including an inner layer and an outer layer. The inner layer has three coexistent phases consisting of a β phase, a γ phase and a Laves phase in the phase diagram of a Ti—Al—Cr based alloy, and the outer layer is made of an Al—Ti—Cr based alloy having an Al concentration of 50 atomic % or more. The heat-resistant Ti alloy material is produced by subjecting a substrate made of a heat-resistant Ti alloy to a Cr diffusion treatment at a temperature within a β single-phase region in the phase diagram of a Ti—Al—Cr based alloy, precipitating a γ phase and a Laves phase from the β phase during a cooling process to form the inner layer with three coexistent phases consisting of the β, γ and Laves phases, and then subjecting the obtained product to an Al diffusion treatment to form the outer layer. The heat-resistant Ti alloy material can prevent the diffusion of Al from the outer layer to the base and the diffusion of elements of the base to the outer layer while forming a protective Al2O3 film in a self-repairing manner, to provide excellent high-temperature corrosion resistance and oxidation resistance to the heat-resistant Ti alloy base.

    摘要翻译： 本发明公开了一种耐高温耐氧化性优异的耐热性Ti合金材料，其特征在于，包括由耐热Ti合金构成的基体和形成在基材表面的表面层。 表面层具有包括内层和外层的多层结构。 内层在Ti-Al-Cr基合金的相图中具有由β相，γ相和Laves相组成的三个共存相，外层由Al-Ti-Cr基合金制成，其具有 50原子％以上的Al浓度。 耐热性Ti合金材料通过在Ti-Al-Cr系合金的相图中，使耐热Ti合金的基板在β单相区域内的温度下进行Cr扩散处理而制造， 在冷却过程中从β相沉淀出γ相和Laves相，以形成由β，γ和Laves相组成的三个共存相的内层，然后将所得产物进行Al扩散处理以形成外层 层。 耐热Ti合金材料可以防止Al从外层扩散到基底，并且可以在形成保护性Al 2 O 3的同时将基体的元素扩散到外层 以自修复方式，以耐热Ti合金基材提供优异的耐高温耐腐蚀性和抗氧化性。