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公开(公告)号：US06583387B2
公开(公告)日：2003-06-24
申请号：US09939946
申请日：2001-08-27
IPC分类号： B23K916
摘要： A heating apparatus and method for pre-weld heat treating, welding and post-weld heat treating a superalloy article in a single enclosure while avoiding oxidation of the article. The enclosure is preferably equipped with a one-way valve that permits the escape of gases, but otherwise seals the enclosure to prevent the ingress of air during welding and heat treatment as a result of thermal gradients induced when the article is inductively heated. To provide access to the article and a device used to weld the article, the enclosure is equipped with gloves by which the welding device and the article can be manipulated while a nonreactive atmosphere is fully maintained within the enclosure and the article is inductively heating.
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公开(公告)号：US06297474B1
公开(公告)日：2001-10-02
申请号：US09472117
申请日：1999-12-23
IPC分类号： B23K916
摘要： A heating apparatus and method for pre-weld heat treating, welding and post-weld heat treating a superalloy article in a single enclosure while avoiding oxidation of the article. The enclosure is preferably equipped with a one-way valve that permits the escape of gases, but otherwise seals the enclosure to prevent the ingress of air during welding and heat treatment as a result of thermal gradients induced when the article is inductively heated. To provide access to the article and a device used to weld the article, the enclosure is equipped with gloves by which the welding device and the article can be manipulated while a nonreactive atmosphere is fully maintained within the enclosure and the article is inductively heating.
摘要翻译： 一种用于预焊接热处理，焊接和焊后热处理单个外壳中的超合金制品的加热装置和方法，同时避免制品的氧化。 外壳优选配备有允许气体逸出的单向阀，但是另外密封外壳，以防止在焊接和热处理期间进入空气，这是由于当物品被感应加热时引起的热梯度。 为了提供对物品的访问和用于焊接物品的装置，外壳配备有手套，通过该手套可以操纵焊接装置和物品，同时在壳体内完全保持非反应性气氛并且物品感应加热。
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公开(公告)号：US5897801A
公开(公告)日：1999-04-27
申请号：US787356
申请日：1997-01-22
CPC分类号： B23P6/007 , B23K35/304 , B23K9/0026 , B23K9/04 , B23K9/23 , B23P6/045 , F01D5/005
摘要： An article made of a nickel-base superalloy having a nil-ductility range from the solidus temperature of the alloy to about 600.degree. F. below the solidus temperature is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, adjusting the temperature of the article to a welding temperature of from about 1800.degree. F. to about 2100.degree. F., welding a preselected area in an inert atmosphere at the welding temperature, and second stress relieving the article. Welding is preferably accomplished by striking an arc in the preselected area so as to locally melt the alloy in the preselected area, providing a filler metal having the same composition as the nickel-based superalloy of the article, and feeding the filler metal into the arc so that the filler metal is melted and fused with the article to form a weldment upon solidification.
摘要翻译： 将由合金的固相线温度的无延伸范围从固相线温度以下约600°F的镍基超级合金制成的物品，例如在表面裂纹的焊接修复中，通过除去异物 从要焊接的区域中，首先将物品应力消除，将物品的温度调节到约1800°F至约2100°F的焊接温度，在焊接温度下将惰性气氛中的预选区域焊接， 第二个压力减轻了文章。 焊接优选通过在预选区域中击打电弧来实现，以便在预选区域中局部熔化合金，从而提供与制品的镍基超合金相同组成的填充金属，并将填充金属进料到电弧 使得填充金属熔化并与制品熔合以在凝固时形成焊件。
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公开(公告)号：US5785775A
公开(公告)日：1998-07-28
申请号：US785408
申请日：1997-01-22
CPC分类号： B23K9/0026 , B23K2203/10
摘要： An article made of a gamma titanium aluminide alloy is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, cooling the entire article to a welding temperature of from about 1000.degree. F. to about 1400.degree. F., welding a preselected region in an inert atmosphere at the welding temperature, and second stress relieving the article. Welding is preferably accomplished by striking an arc in the preselected region so as to locally melt the alloy in the preselected region, providing a filler metal having the same composition as the gamma titanium aluminide alloy of the article, and feeding the filler metal into the arc so that the filler metal is melted and fused with the article to form a weldment upon solidification.
摘要翻译： 焊接由γ钛化铝合金制成的制品，例如在表面裂纹的焊接修复中，通过从待焊接的区域去除异物，首先减轻制品的应力，将整个制品冷却至焊接温度 约1000°F至约1400°F，在焊接温度下在惰性气氛中焊接预选区域，并且使第二应力消除物品。 焊接优选通过在预选区域中击打电弧来实现，以便在预选区域中局部熔化合金，从而提供具有与制品的γ钛铝化物合金相同组成的填充金属，并将填充金属进料到电弧 使得填充金属熔化并与制品熔合以在凝固时形成焊件。
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5.发明授权
公开(公告)号：US6049060A
公开(公告)日：2000-04-11
申请号：US210879
申请日：1998-12-15
IPC分类号： B23K9/00
CPC分类号： B23K9/0026
摘要： An article is welded, as in weld repair of a defect, by positioning a weld lift-off block at a location on the surface of the article adjacent to the intended location of the end of the weldment on the surface of the article. The weld lift-off block has a wedge shape including a base contacting the surface of the article, and an upper face angled upwardly from the base from a base leading edge. A weld pool is formed on the surface of the article by directly heating the surface of the article using a heat source. The heat source is moved relative to the surface of the article and onto the upper surface of the weld lift-off block by crossing the leading edge of the wedge, without discontinuing the direct heating of the article by the heat source. The heating of the article with the heat source is discontinued only after the heat source is directly heating the upper face of the weld lift-off block, and not the article.
摘要翻译： 通过将焊接剥离块定位在物品表面上邻近焊件端部的预期位置的位置处，在制品的表面上焊接一件物品，如焊接修补缺陷。 焊接剥离块具有包括接触制品表面的基部和从基部前缘向上倾斜的上表面的楔形。 通过使用热源直接加热制品的表面，在制品的表面上形成焊池。 热源相对于制品的表面移动并且通过穿过楔形物的前缘而移动到焊接剥离块的上表面上，而不会中断通过热源直接加热制品。 只有在热源直接加热焊接剥离块的上表面而不是制品之后，用热源对制品的加热才停止。
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公开(公告)号：US20080138153A1
公开(公告)日：2008-06-12
申请号：US11969361
申请日：2008-01-04
申请人： Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
发明人： Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
IPC分类号： E02D29/14
CPC分类号： E02D29/1418 , Y10T137/7021
摘要： A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
摘要翻译： 具有平齐表面和外部枢转轴的升降机辅助井盖组件。 该盖包括延伸超出盖的一般周边的安装片。 安装翼片可以连接到与框架螺纹接合的轴。 弹簧可以安装在框架和安装突片之间，例如在套筒中，以提供提升盖子的机械辅助。 套管可以设置在人孔开口的外部，在那里它不阻挡进入人孔开口。
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公开(公告)号：US06659332B2
公开(公告)日：2003-12-09
申请号：US10309727
申请日：2002-12-03
IPC分类号： B23K3100
摘要： A directionally solidified nickel-base superalloy article has a defect therein extending parallel to the solidification direction. The article is repaired by removing any foreign matter present in the defect, and then heating the article to a repair temperature of from about 60 to about 98 percent of the solidus temperature of the base material in a chamber containing a protective gas that inhibits oxidation of the base material. The defect is filled with a filler metal while maintaining the article at the repair temperature. The filling is accomplished by providing a source of the filler metal of substantially the same composition as the base material of the directionally solidified article, and melting the filler metal into the defect progressively while moving the source of the filler metal relative to the article in a direction parallel to the solidification direction. Optionally, additional artificial heat extraction is accomplished in a heat-flow direction that is within about 45 degrees of the solidification direction, as the filler metal solidifies within the defect. The article may thereafter be heat treated.
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公开(公告)号：US07341398B2
公开(公告)日：2008-03-11
申请号：US11420083
申请日：2006-05-24
申请人： Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
发明人： Jeremy I. Johnson , Lee M. Veldboom , Scott B. Beal , Herbert Carl Barnum , William R. Austin , James F. Malpass , Todd C. Loviska , Brian J. Rachwitz , Rex A. Garringer , John H. Snyder
IPC分类号： B65D43/18
CPC分类号： E02D29/1418 , Y10T137/7021
摘要： A lift-assisted manhole cover assembly with a flush surface and external pivot shaft. The cover includes a mounting tab that extends beyond the general periphery of the cover. The mounting tab may be connected to a shaft that is threadedly engaged with the frame. A spring may be mounted between the frame and the mounting tab, for example, in a sleeve, to provide a mechanical assist in lifting the cover. The sleeve may be disposed outside the manhole opening where it does not block access to the manhole opening.
摘要翻译： 具有平齐表面和外部枢转轴的升降机辅助井盖组件。 该盖包括延伸超出盖的一般周边的安装片。 安装翼片可以连接到与框架螺纹接合的轴。 弹簧可以安装在框架和安装突片之间，例如在套筒中，以提供提升盖子的机械辅助。 套管可以设置在人孔开口的外部，在那里它不阻挡进入人孔开口。
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公开(公告)号：US06491207B1
公开(公告)日：2002-12-10
申请号：US09459302
申请日：1999-12-10
IPC分类号： B23K3100
摘要： A directionally solidified nickel-base superalloy article has a defect therein extending parallel to the solidification direction. The article is repaired by removing any foreign matter present in the defect, and then heating the article to a repair temperature of from about 60 to about 98 percent of the solidus temperature of the base material in a chamber containing a protective gas that inhibits oxidation of the base material. The defect is filled with a filler metal while maintaining the article at the repair temperature. The filling is accomplished by providing a source of the filler metal of substantially the same composition as the base material of the directionally solidified article, and melting the filler metal into the defect progressively while moving the source of the filler metal relative to the article in a direction parallel to the solidification direction. Optionally, additional artificial heat extraction is accomplished in a heat-flow direction that is within about 45 degrees of the solidification direction, as the filler metal solidifies within the defect. The article may thereafter be heat treated.
摘要翻译： 定向凝固的镍基超级合金制品具有平行于凝固方向延伸的缺陷。 通过去除缺陷中存在的任何异物来修复制品，然后将制品加热到含有抑制氧化的保护气体的室中基材的固相线温度的约60至约98％的修复温度 基材。 在将物品保持在修复温度的同时，填充金属的缺陷。 填充是通过提供与定向凝固制品的基础材料基本上相同的组成的填充金属源，并且将填充金属逐渐熔化成缺陷，同时将填料金属源相对于制品移动到 方向平行于凝固方向。 任选地，随着填充金属在缺陷内固化，在固化方向的约45度内的热流方向上完成另外的人造热提取。 此后可以对该制品进行热处理。
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