公开(公告)号：US4963395A

公开(公告)日：1990-10-16

申请号：US472687

申请日：1990-01-31

申请人： Everett C. Lewis ,  Harley A. Grant

发明人： Everett C. Lewis ,  Harley A. Grant

IPC分类号： B65H51/01 ,  C23C10/32 ,  C23C10/38

CPC分类号： C23C10/38 ,  B65H51/01 ,  C23C10/32 ,  B65H2701/31

摘要： A chromium coating process for coating large size articles such as boiler tubes and boiler tube assemblies, comprises the steps of: (a) mounting on a stationary foundation a retort having a removable cover; (b) covering the articles to be coated in the retort by a chromium source powder containing 3% of ammonium chloride and 42% ferrochromium, the balance consisting of alumina; (c) sealing the cover on the retort; (d) heating the retort to a uniform temperature of 2100.degree. F. for 10 hours; (e) supplying concurrent with the commencement of the heating an inert gas to the interior of the retort; (f) terminating the heating of the retort and shutting off the flow of the inert gas to the retort; (g) cooling the retort and the articles within the retort uniformly throughout to a temperature of 400.degree. F.; (h) removing the cover from the retort; (i) removing the coated articles therefrom.

摘要翻译： 用于涂覆大型物品如锅炉管和锅炉管组件的铬涂覆方法包括以下步骤：（a）在固定的基础上安装具有可拆卸盖的蒸馏器; （b）用含有3％氯化铵和42％铬铁的铬源粉末覆盖待蒸煮的物品，余量由氧化铝组成; （c）将盖子密封在蒸馏器上; （d）将蒸煮器加热到2100°F的均匀温度10小时; （e）同时提供将惰性气体加热到蒸馏器内部; （f）终止蒸馏器的加热并且关闭惰性气体流到蒸馏器中; （g）将蒸馏器和蒸馏器内的物品均匀地冷却至400°F的温度; （h）从蒸馏器中取出盖子; （i）从中除​​去涂覆的制品。

公开(公告)号：US06554924B2

公开(公告)日：2003-04-29

申请号：US09764925

申请日：2001-01-18

申请人： M. Stanley Morrow ,  Donald E. Schechter ,  Harley A. Grant

发明人： M. Stanley Morrow ,  Donald E. Schechter ,  Harley A. Grant

IPC分类号： C21D109

CPC分类号： C23C10/00 ,  C21D1/68 ,  C21D10/00 ,  C21D2241/00

摘要： A uniquely surface-modified metallic part is provided by the utilization of microwave energy to promote diffusion of desired metals into the surface of the formed metallic part.

公开(公告)号：US4993359A

公开(公告)日：1991-02-19

申请号：US451706

申请日：1989-12-15

申请人： Everett C. Lewis ,  Harley A. Grant

发明人： Everett C. Lewis ,  Harley A. Grant

IPC分类号： B65H51/01 ,  C23C10/32 ,  C23C10/38

CPC分类号： C23C10/38 ,  B65H51/01 ,  C23C10/32 ,  B65H2701/31

摘要： An apparatus (10) and a method for applying a chromized coating (46,60,62,66) to one or more of the surfaces of an article (44,56,58,64) particularly in those situations in which the article (44,56,58,64) is intended to be employed in an application wherein the article (44,56,58,64) will be subject to corrosion. The subject apparatus (10) includes a foundation (12), a retort (16) for receiving the articles (44,56,58,64) to which the chromized coating is to be applied, an inlet (24) formed in the retort (16) for supplying a fluid medium therewithin, an outlet (26) formed in the retort (16) for enabling the fluid medium to exit therefrom after passing therethrough, supports (14) for supporting the retort (16) in spaced relation to the foundation (12), a furnace (28) which is movable to and from a position wherein the furnace (28) is located in surrounding relation to the retort (16) such that the furnace (28) is operative to effect the heating of the retort (16) for a preestablished period of time at a predetermined temperature, an inlet (38) formed in the furnace (28) for supplying a fluid medium therewithin, an outlet (40) formed in the furnace (28) for enabling the fluid medium to exit therefrom after passing therethrough, and seals (42) for sealing off the furnace (28) and thereby also the retort (16) from the environment surrounding the furnace (28) while the retort (16) is being heated by the furnace (28).

摘要翻译： 一种装置（10）和一种将铬化涂层（46,60,62,66）施加到制品（44,56,58,64）的一个或多个表面上的方法，特别是在那些制品（ 44,56,58,64）旨在用于其中物品（44,56,58,64）将遭受腐蚀的应用中。 主体装置（10）包括基座（12），用于接收要施加镀铬涂层的物品（44,56,58,64）的蒸馏器（16），形成在蒸馏器中的入口（24） （16），用于在其中供应流体介质;形成在所述蒸馏器（16）中的出口（26），用于使流体介质在通过之后能够从其中离开;用于支撑所述蒸馏器（16）的支撑件（14）与所述蒸馏器 基座（12），可移动到其中炉子（28）位于围绕蒸馏器（16）的位置的位置的炉子（28），使得炉子（28）可操作以实现 在预定温度下进行预先建立的时间段的蒸馏器（16），在炉子（28）中形成的用于在其中供应流体介质的入口（38），形成在炉子（28）中的用于使流体 介质通过后通过其离开，以及用于密封炉（28）的密封件（42），从而也用于密封 （16）从炉（28）周围的环境，而蒸馏器（16）被炉（28）加热。

公开(公告)号：US06602550B1

公开(公告)日：2003-08-05

申请号：US09963907

申请日：2001-09-26

申请人： Harley A. Grant ,  Jerry Paul Stewart

发明人： Harley A. Grant ,  Jerry Paul Stewart

IPC分类号： C23C1606

CPC分类号： C23C10/04 ,  C23C10/34

摘要： A method for treating a portion of a metal component by diffusion alloying includes providing a container having at least one open end. The container has a width that is greater than the width of the portion of the metal component to be treated, a thickness that is greater than the thickness of the portion of the metal component to be treated, and a depth that is greater than the length of the portion of the metal component to be treated. According to the method, the portion of the metal component to be treated is placed in the container. A heat-activated alloying powder is placed in the container around the portion of the component to be treated in a layer that extends along the length of the portion of the component to be treated. A non-oxidizing powder is placed in the container adjacent to the alloying powder and around the metal component in a layer that extends to an open end of the container. A cap is provided for each open end of the container to seal the container around the metal component except for gases which are produced in diffusion alloying. A furnace is provided to heat the portion of the metal component to be treated to activate the alloying powder. The container is placed with the portion of the metal component to be treated therein in the furnace, and the furnace is operated to heat the portion of the metal component in the container to a temperature and for a time sufficient to cause diffusion alloying of the portion of the metal component to be treated by the alloying powder.

摘要翻译： 通过扩散合金化处理金属部件的一部分的方法包括提供具有至少一个开口端的容器。 容器的宽度大于被处理金属部件的宽度，其厚度大于被处理金属部件的厚度，并且深度大于长度 的待处理金属组分的部分。 根据该方法，将待处理的金属成分的一部分放置在容器中。 将热活化的合金粉末沿着待处理组分的部分长度延伸的层中围绕待处理组分的部分放置在容器中。 将非氧化性粉末放置在与合金粉末相邻的容器中并且在延伸到容器的开口端的层中的金属部件周围。 为容器的每个开口端设置一个盖子，以围绕金属部件密封容器，除了以扩散合金化产生的气体之外。 提供炉以加热要处理的金属成分的部分以活化合金粉末。 将容器放置在炉中待处理的金属部件的一部分，并且操作炉子以将容器中的金属部件的一部分加热到足以使部分的金属部分扩散合金化的温度 的待合金粉末处理的金属成分。