公开(公告)号：WO1997033011A1

公开(公告)日：1997-09-12

申请号：PCT/FR1997000363

申请日：1997-02-28

Applicant: ALUMINIUM PECHINEY ,  LEROY, Michel

Inventor： ALUMINIUM PECHINEY

IPC: C22F01/02

CPC classification number: C22F1/02 ,  C22F1/04 ,  C23C14/3414

Abstract: A method wherein an optionally partially worked rough blank casting is provided then (1) the oxide layer on the castings is removed and means are implemented to prevent it being reformed, (2) a heat treatment is carried out in a furnace containing a non-oxidising atmosphere in order to homogenise and redissolve precipitates comprising alloying elements present in the aluminium matrix, (3) the homogenising heat treatment is continued under conditions enabling most of the hydrogen in the castings to be extracted until the hydrogen content is reduced to less than 0.05 ppm and preferably less than 0.03 ppm, and (4) said castings are worked in such a way that the thickness or cross-section thereof is reduced by at least 10 %, under such conditions that any residual pores remaining after the precipitates have been redissolved and the gas removed may be filled. Said method advantageously includes a further step (5) of selecting worked castings by means of a non-destructive testing method whereby residual flaws with a size exceeding a predetermined threshold may be detected, the flaw density may be determined and castings having a flaw density higher than a predetermined threshold may be discarded.

Abstract translation: 一种方法，其中提供任选地部分加工的粗坯铸件，然后（1）除去铸件上的氧化物层，实施防止其重整的装置，（2）在包含非铸造的炉中进行热处理， 氧化气氛以使包含铝基体中存在的合金元素的沉淀物均化并再溶解，（3）均匀化热处理在允许铸件中大部分氢被萃取直至氢含量降至小于0.05的条件下继续进行均化热处理 ppm，优选小于0.03ppm，和（4）所述铸件的工作方式使得其厚度或横截面减小至少10％，在沉淀物再残余后残留的孔隙 并且可以填充除去的气体。 所述方法有利地包括另外的步骤（5），其通过非破坏性测试方法选择加工的铸件，由此可以检测到尺寸超过预定阈值的残余瑕疵，可以确定瑕疵密度并且具有更高的瑕疵密度的铸件 可以丢弃预定阈值。

公开(公告)号：WO1998027243A1

公开(公告)日：1998-06-25

申请号：PCT/EP1997006394

申请日：1997-11-17

Applicant: MESSER GRIESHEIM GMBH ,  ZYLLA, Peter

Inventor： MESSER GRIESHEIM GMBH

IPC: C22F01/02

CPC classification number: C22F1/02 ,  C22F1/08

Abstract: The invention concerns a method of preventing stickers from forming when annealing nonferrous metal alloys. The method comprises the phases of heating, holding and cooling, the material to be annealed being exposed to an inert or oxidizing protective gas atmosphere during structural transformation, such that during this time a thin oxide layer forms on the surface of the material being annealed and/or an existing oxide layer is retained, this layer preventing nonferrous metal parts from sticking together.

Abstract translation: 一种用于避免贴退火有色金属合金时，包括加热的相位，保持，冷却方法，其中所述退火后的材料在惰性或氧化性保护气体气氛的结构转变，由此，退火材料的表面，在该时间和/或所形成的薄氧化物层过程中经受 现有氧化物层保持，以防止非铁金属部件粘在一起。

公开(公告)号：WO1996034993A1

公开(公告)日：1996-11-07

申请号：PCT/US1996005917

申请日：1996-05-01

Applicant: McDONNELL DOUGLAS CORPORATION

Inventor： McDONNELL DOUGLAS CORPORATION ,  KEENER, Steven, G.

IPC: C22F01/02

CPC classification number: C25D11/18 ,  B05D3/0254 ,  B05D7/14 ,  B05D7/51 ,  B05D2202/25 ,  B05D2258/00 ,  B05D2701/00 ,  B21K1/58 ,  C21D9/0093 ,  C22F1/04 ,  C25D21/18 ,  Y10T428/31688

Abstract: An aluminum-alloy article such as a fastener or rivet (40) is prepared by providing an aluminum-alloy article precursor that is not in its final heat-treated state, and in one form is in its solution treated/annealed state. A curable organic coating material is also provided. The method includes anodizing the article precursor, preferably in chromic acid solution and without chemical sealing during anodizing, applying the organic coating material to the aluminum-alloy article precursor, and precipitation heat-treating the coated aluminum article precursor to its final heat-treated state, thereby simultaneously curing the organic coating. If the aluminum alloy temper is of the naturally aging type, it is optionally lightly deformed prior to precipitation treatment aging. The approach may also be applied to articles that are not solution treated/annealed and aged, by first overly deforming the article precursor so that the curing treatment of the coating also partially anneals the article precursor to the final desired deformation state.

Abstract translation: 通过提供不处于其最终热处理状态的铝合金制品前体，以一种形式处于其溶液处理/退火状态，制备诸如紧固件或铆钉（40）的铝合金制品。 还提供了可固化的有机涂层材料。 该方法包括阳极氧化制品前体，优选在铬酸溶液中，并且在阳极氧化期间没有化学密封，将有机涂料施加到铝合金制品前体，并将涂覆的铝制品前体沉淀热处理至其最终热处理状态 从而同时固化有机涂层。 如果铝合金回火是天然老化型，则在沉淀处理老化之前任选轻度变形。 该方法还可以应用于不经过溶液处理/退火和老化的制品，首先使制品前体过度变形，使得涂层的固化处理也部分地将制品前体退火到最终期望的变形状态。