-
1.发明申请公开(公告)号：US20130189429A1
公开(公告)日：2013-07-25
申请号：US13560808
申请日：2012-07-27
申请人： Heinrich Walter
发明人： Heinrich Walter
IPC分类号： B05C21/00
CPC分类号： B05C21/005 , C23C10/04 , C23C10/32 , C23C10/38 , C23C10/40 , C23C10/44 , C23C10/46 , C23C10/48 , C23C10/50
摘要： A method for producing a locally limited diffusion coat on a metallic component is disclosed. In an embodiment, the method includes arranging the component and at least one dispenser pack containing the material to be diffused, making available at least one protective gas stream, which flows around the at least one region of the component that is not to be provided with a diffusion coat, and heating the component and the dispenser pack to a temperature for carrying out the diffusion and maintaining the temperature for a specific time. A reactor for producing a locally limited diffusion coat on a metallic component is also disclosed.
摘要翻译： 公开了一种在金属部件上制造局部有限扩散涂层的方法。 在一个实施例中，该方法包括布置该组件和至少一个包含要扩散的材料的分配器组件，使至少一个保护气体流流过组件的至少一个区域，该区域不被提供 扩散涂层，并且将组件和分配器组件加热到用于进行扩散的温度并将温度保持特定时间。 还公开了一种用于在金属部件上产生局部有限扩散涂层的反应器。
-
公开(公告)号：US4308160A
公开(公告)日：1981-12-29
申请号：US809189
申请日：1977-06-23
申请人： Alfonso L. Baldi
发明人： Alfonso L. Baldi
IPC分类号： C08F283/01 , C09D5/04 , C23C10/02 , C23C10/04 , C23C10/38 , C23C10/40 , C23C10/42 , C23C10/60 , C23C22/74 , H01J7/18
CPC分类号： C23C22/74 , C08F283/01 , C09D5/04 , C23C10/02 , C23C10/04 , C23C10/38 , C23C10/40 , C23C10/42 , C23C10/60 , F05B2250/62
摘要： Diffusion chromizing of nickel-base superalloys is effected with essentially no formation of oxide or alphachrome, even in a high-volume diffusion coating pack, by use of a pack consisting essentially of, by weight,about 2 to about 3% aluminumabout 3 to about 6 times as much chromium as aluminuma mixture of cobalt and nickel in a combined amount about 10 to about 20 times the amount of aluminum, the amount of cobalt being from about 1/3 to about 4/3 the amount of nickelthe balance of the pack being essentially inert filler and activating material. The use of a magnesium halide activator with such pack extends the improvement to the application of heavier chromizing cases. Pack can be of fluent type, particularly where workpiece is partially masked, and masking can be colored to provide visual contrast. Metals not requiring chromizing can be aluminized and top coated with slurry of flake aluminum in aqueous solution of CrO.sub.4.sup..dbd., PO.sub.4.sup..tbd. and Mg.sup.++. Gun barrels can have their internal bores diffusion chromized with fluent pack, and quenched during the cool-down that follows the chromizing.
摘要翻译： 镍基超级合金的扩散镀铬，即使在大体积扩散涂层组合物中也基本上不形成氧化物或铝合金，通过使用基本上由约2至约3％的铝组成的组合物，约3至3 约为铬的6倍，钴和镍的混合物的组合量为铝的约10至约20倍，钴的量为约1/3至约4/3的量，镍的平衡量 的包装件基本上是惰性填料和活化材料。 使用卤化镁活化剂与这样的包装增加了对更重的镀铬箱的应用的改进。 包装可以是流畅型，特别是在工件被部分掩蔽的地方，并且掩蔽可以着色以提供视觉对比。 不需要镀铬的金属可以镀铝，并在薄膜铝的CrO4 =，PO4B3OND和Mg ++的水溶液中涂上浆料。 枪筒可以使其内部孔通过流体包装扩散镀铬，并在随着铬化之后的冷却过程中淬火。
-
公开(公告)号：US4042426A
公开(公告)日：1977-08-16
申请号：US698111
申请日：1976-06-21
申请人： Carl Adolph Beiser
发明人： Carl Adolph Beiser
CPC分类号： C23C10/40 , C23C10/10 , C23C10/32 , Y10S428/926 , Y10T428/12125 , Y10T428/12854
摘要： An improved steel substrate for preparing chromized steel, the substrate consisting essentially of a flat rolled plain low carbon columbium treated steel initially having a total carbon content of at least 0.03% and containing about 0.03-0.15% columbium. The steel substrate is the flat rolled product of the solidification of molten steel having the above composition. The carbon content of the steel substrate is partially stabilized whereby a controlled portion of the carbon is free to diffuse upon heating to an elevated chromizing temperature. The carbon content which is free to diffuse, the columbium content, and the thickness of the substrate are carefully correlated whereby the overall quality of the chromized product prepared therefrom may be controlled and maintained at optimum levels. The invention further provides the improved chromized steel products prepared thereby.
摘要翻译： 一种用于制备铬酸钢的改进的钢基材，该基材基本上由平均轧制的普通低碳铌处理钢组成，最初具有至少0.03％的总碳含量并且含有约0.03-0.15％的铌。 钢基材是具有上述组成的钢水凝固的扁平轧制品。 钢基材的碳含量部分稳定，由此受控部分的碳在加热至升高的铬化温度时自由扩散。 可自由扩散的碳含量，铌含量和基材的厚度被仔细地相关联，由此可以将由其制备的铬化产物的总体质量控制并保持在最佳水平。 本发明还提供了由此制备的改进的镀铬钢产品。
-
公开(公告)号：US3948687A
公开(公告)日：1976-04-06
申请号：US357616
申请日：1973-05-07
申请人： Alfonso L. Baldi
发明人： Alfonso L. Baldi
IPC分类号： C23C10/02 , C23C10/38 , C23C10/40 , C23C10/42 , C23C10/50 , C23C10/56 , C23C10/60 , C23C22/74 , C23F7/14
CPC分类号： C23C10/40 , C23C10/02 , C23C10/38 , C23C10/42 , C23C10/50 , C23C10/56 , C23C10/60 , C23C22/74 , Y10T428/12569 , Y10T428/265
摘要： Low temperature aluminum diffusion is more uniform when effected with a pack energized by aluminum chloride or other material that does not generate nitrogen, and gives food protection against marine corrosion of steels, and particularly when there is a chromate-type coating applied over the aluminizing. Highly effective chromate-type coating mixture consists essentially of aqueous solution of chromic and phosphoric acid also containing magnesium salts of said acids and dispersed polytetrafluoroethylene particles. Such coating mixture is best applied over porous pre-coating of colloidal inert particles. Aluminized superalloy can be heated in air to whiten it, then cleaned to give product having more ductile case. Such coated superalloy can also be stripped of coating by aqueous HNO.sub.3 --HF--CrO.sub.3 bath.
摘要翻译： 当铝包装或其他不产生氮气的材料通电时，低温铝的扩散更加均匀，并提供食品保护以防止钢的海洋腐蚀，特别是在镀铝时应用铬酸盐型涂层。 高效的铬酸盐型涂料混合物基本上由还含有所述酸的镁盐和分散的聚四氟乙烯颗粒的铬酸和磷酸水溶液组成。 这种涂料混合物最好用于胶体惰性颗粒的多孔预涂层。 铝合金超合金可在空气中加热，使其变白，然后进行清洗，得到具有更多延性的产品。 这种涂层的高温合金也可以通过HNO3-HF-CrO3水溶液被剥离。
-
公开(公告)号：US3801357A
公开(公告)日：1974-04-02
申请号：US3801357D
申请日：1972-01-20
发明人： BALDI A
摘要： Diffusion coating of superalloys with aluminum is effectively prevented at desired locations by masking with nickel or cobalt aluminide having less than one atom of aluminum for each atom of nickel or cobalt, and packed against those locations. Chromium, silicon, iron or any combination of them can be coated along with the aluminum as by alloying with the aluminum used to provide the coating, and particularly effective particle size of such alloys is about 1 micron. Such sizes are produced by simultaneous magnesothermic reduction. Molybdenum and tungsten silicide particles can also be produced in this small size by such reduction and make effective diffusion coating materials. Diffusion coating can also be confined to restricted portions of work pieces without the above masking.
-
公开(公告)号：US4528215A
公开(公告)日：1985-07-09
申请号：US548937
申请日：1983-11-07
IPC分类号： B01J35/04 , C23C10/02 , C23C10/40 , C23C10/48 , C23C10/56 , C23C10/58 , C23C10/60 , C23C11/00 , C23C13/00
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. On the other hand an alpha-chromium-rich layer at least 0.2 mil thick can be deliberately formed and the superalloy thus coated subjected to an aluminizing treatment to convert the alpha-chromium into islands that provide very high sulfidation resistance. Pack aluminizing in the presence of chromium makes a very effective aluminum- or chromium-containing top coating over platinum plated or platinum coated nickel-base superalloys. Depletion of diffusible material from workpieces heated in a powder-pack can also provide 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。 另一方面，可以有意地形成至少0.2密耳厚的富铬的层，并且如此涂覆的超级合金进行镀铝处理以将α-铬转化为提供非常高的耐硫化性的岛。 在镀铬的情况下，镀铝处理使镀铂或镀铂镍基超级合金上的铝或铬的顶涂层非常有效。 从粉末包装中加热的工件中消散可扩散材料还可以提供一种表面，在该表面上，铝化产生高度耐冲击的涂层。
-
公开(公告)号：USRE31104E
公开(公告)日：1982-12-14
申请号：US234315
申请日：1981-02-13
IPC分类号： B01J23/60 , B01J35/04 , B01J35/06 , C23C10/02 , C23C10/36 , C23C10/40 , C23C10/48 , C23C10/56 , C23C10/58 , C23C10/60
CPC分类号： B01J35/06 , B01J23/60 , B01J35/04 , C23C10/02 , C23C10/36 , C23C10/40 , C23C10/48 , C23C10/56 , C23C10/58 , C23C10/60
摘要： Foil, wire and similar coherent bodies of catalytic metal are provided with catalytically active surfaces by diffusing a chemically removable metal such as aluminum or zinc into those surfaces and then selectively dissolving out at least about a third of the removable metal. Platinum wire screens activated in this way make effective exhaust catalysts for automotive engines.
-
公开(公告)号：US4292208A
公开(公告)日：1981-09-29
申请号：US687
申请日：1979-01-03
IPC分类号： B01J25/00 , B01J35/04 , B01J37/06 , C23C10/40 , C23C10/42 , C23C10/50 , C23C10/56 , C23C10/58 , C23C10/60 , B01J23/16 , B01J23/74 , B32B15/14
CPC分类号： B01J35/04 , B01J25/00 , B01J37/06 , C23C10/40 , C23C10/42 , C23C10/50 , C23C10/56 , C23C10/58 , C23C10/60 , Y10T428/12424 , Y10T428/12438 , Y10T428/12479 , Y10T428/12944 , Y10T428/12958 , Y10T428/12979
摘要： Diffusion coating a substrate metal with a different metal, such as aluminum and zinc, that is then chemically removed from the coated substrate, provides the residual metal with a very desirable catalytic surface. At least about a third of the removable metal can be dissolved out. Platinum wire screens activated in this way make effective exhaust catalysts for automotive engines. Chromium-rich coating for protective purposes can be applied on a superalloy, diffusion coating in a pack that in addition to the chromium to be diffused, also 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. Depletion of diffusible material from workpieces heated in a powder-pack can also provide a surface on which aluminizing produces a highly impact-resistant coating.
摘要翻译： 使用不同金属（例如铝和锌）的基底金属的扩散涂覆，然后从涂覆的基底中化学去除，为残留金属提供了非常理想的催化剂表面。 至少约三分之一的可移除金属可以溶出来。 以这种方式激活的铂金丝网为汽车发动机生产有效的排气催化剂。 用于保护目的的富铬涂层可以应用于超合金，包装中的扩散涂层，除了要扩散的铬外，还含有至少约3％的Ni3Al。 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，镀铝处理使镀铂或镀铂镍基超级合金上的铝和铬的顶涂层非常有效。 从粉末包装中加热的工件中消散可扩散材料还可以提供一种表面，在该表面上，铝化产生高度耐冲击的涂层。
-
公开(公告)号：US3969550A
公开(公告)日：1976-07-13
申请号：US557177
申请日：1975-03-10
申请人： Carl Adolph Beiser
发明人： Carl Adolph Beiser
CPC分类号： C22C38/12 , C23C10/10 , C23C10/32 , C23C10/40 , Y10S428/926 , Y10T428/12069 , Y10T428/1209 , Y10T428/12097 , Y10T428/12854
摘要： An improved process for preparing chromized steel using a substrate which consists essentially of a flat rolled plain low carbon columbium treated steel initially having a total carbon content of at least 0.03% and containing about 0.03-0.15% columbium. The steel substrate is the flat rolled product of the solidification of molten steel having the above composition. The carbon content of the steel substrate is partially stabilized whereby a controlled portion of the carbon is free to diffuse upon heating to an elevated chromizing temperature. The carbon content which is free to diffuse, the columbium content, and the thickness of the substrate are carefully correlated whereby the overall quality of the chromized product prepared therefrom may be controlled and maintained at optimum levels. The invention further provides the improved chromized steel products prepared thereby.
摘要翻译： 一种改进的使用基材制备铬酸钢的方法，该基材基本上由平均轧制的普通低碳铌处理钢组成，最初具有至少0.03％的总碳含量并且含有约0.03-0.15％的铌。 钢基材是具有上述组成的钢水凝固的扁平轧制品。 钢基材的碳含量部分稳定，由此受控部分的碳在加热至升高的铬化温度时自由扩散。 可自由扩散的碳含量，铌含量和基材的厚度被仔细地相关联，由此可以将由其制备的铬化产物的总体质量控制并保持在最佳水平。 本发明还提供了由此制备的改进的镀铬钢产品。
-
公开(公告)号：US3356528A
公开(公告)日：1967-12-05
申请号：US32375063
申请日：1963-11-14
申请人： COLVILLES LTD
发明人： THOMAS GIBSON , MCADAM WILLIAM R
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.015 秒)