公开(公告)号：US4943000A

公开(公告)日：1990-07-24

申请号：US133883

申请日：1987-12-16

申请人： Guy-Michel Raynaud ,  Louis Realis ,  Didier Constant

发明人： Guy-Michel Raynaud ,  Louis Realis ,  Didier Constant

IPC分类号： B23K1/19 ,  B23K1/20 ,  B23K20/233 ,  B23K20/24 ,  B23K35/28

CPC分类号： B23K1/19 ,  B23K1/20 ,  B23K20/233 ,  B23K20/2336 ,  B23K20/24 ,  B23K35/286 ,  B23K2203/10

摘要： A method is disclosed for brazing without filler metal two components, of which at least one is an Al alloy. According to the method, prior to brazing, at least one Al alloy component is maintained in a region of temperatures included between the temperature of solvus T.sub.v of the alloy and 2/5 of temperature of fusion (solidus) T.sub.s of the alloy, expressed in degrees Kelvin, for a sufficient period of time. After this treatment, which may or may not be isothermal, the alloy is suitable for brazing in a domain of temperatures included between the temperature of fusion T.sub.e of the most fusible eutectic corresponding to the equilibrium diagram of the constituents of the alloy, and that of the solidus of the alloy. The method permits the realization of perfectly homogeneous brazed seams for alloys considered not to be brazable.

摘要翻译： 公开了一种无填料金属钎焊的两种组分的方法，其中至少一种是Al合金。 根据该方法，在钎焊之前，至少一种Al合金组分保持在合金溶质电弧温度和合金熔体温度（固体）Ts的2/5之间的温度范围内，表示在 开尔文，有足够的时间。 在这种处理之后，其可以是或不是等温的，该合金适用于在熔融温度范围内的温度范围内的钎焊，所述温度包括对应于合金成分的平衡图的最易熔共晶的熔化Te之间， 合金的固相线。 该方法允许实现被认为不是可钎焊的合金的完全均匀的钎焊接缝。

公开(公告)号：US4229636A

公开(公告)日：1980-10-21

申请号：US041297

申请日：1979-05-22

申请人： Gerard Izari

发明人： Gerard Izari

IPC分类号： B23H7/28 ,  B23P1/12

CPC分类号： B23H7/28

摘要： A process for the spark erosion machining of a workpiece having a cylindrical orifice, formed of any desired cross-section, the invention utilizes an electrode which is moved relative to the workpiece. According to the invention, a first rapid rough shaping pass is performed by descent of the electrode parallel to the generatrices of the orifice. On raising, the electrode is then translated perpendicularly to the generatrices by a distance r and then is lowered at a slower speed and is raised again before performing a circular translation of radius r. The electrode is again lowered and raised, and the operation is repeated n times so as to perform a complete revolution. The present process allows efficient machining of dies for metal extrusion.

摘要翻译： 本发明涉及一种用任何所需横截面形成的具有圆柱孔的工件的火花腐蚀加工方法，本发明利用相对于工件移动的电极。 根据本发明，通过平行于孔的母线的电极的下降来执行第一快速粗糙成形通过。 在升高时，然后将电极垂直于母线平移一定距离r，然后以较慢的速度降低，并且在进行半径r的圆形平移之前再次升高。 电极再次降低升高，重复n次，进行完全旋转。 本方法允许有效地加工用于金属挤压的模具。

公开(公告)号：US4814022A

公开(公告)日：1989-03-21

申请号：US68118

申请日：1987-06-30

申请人： Didier Constant ,  Gilbert Gutmann

发明人： Didier Constant ,  Gilbert Gutmann

IPC分类号： C22C21/08 ,  C22F1/04

CPC分类号： C22C21/08

摘要： A weldable aluminum alloy workable into sheet form containing Si, Mg and Cu, and a process for its production are disclosed.The alloy comprises (in percent by weight) proportions of Si and Mg as defined by a trapezium having the following co-ordinates:______________________________________ Si Mg ______________________________________ (A) 0.5 0.1 (B) 0.5 0.2 (C) 1.3 0.5 (D) 1.3 0.1 ______________________________________ Cu: 0.1-0.5;Mn: 0-0.2;Ti: 0-0.1;Fe: 0-0.35;other impurites each: .ltoreq.0.05total impurity content: .ltoreq.0.15balance Al.The production procedure comprises semi-continuous or continuous casting of blanks, an optional homogenisation operation, a hot transformation operation which is terminated in the range of 270.degree. to 340.degree. C., an optional cold transformation operation, a complete solution treatment, a shaping operation using stamping or pressing, folding, bending, etc . . . , and a tempering operation.

摘要翻译： 公开了一种可以成型为含有Si，Mg和Cu的片状的可焊接铝合金及其制造方法。 合金含有（以重量％计）比例的Si和Mg，由具有以下坐标的梯形所定义：-Si Mg - （A）0.5 0.1 - （B）0.5 0.2 - （C）1.3 0.5 - （D ）1.3 0.1 - Cu：0.1-0.5; Mn：0-0.2; Ti：0-0.1; Fe：0-0.35; 其他杂质：

公开(公告)号：US4661154A

公开(公告)日：1987-04-28

申请号：US822523

申请日：1986-01-27

申请人： Jean-Francois Faure

发明人： Jean-Francois Faure

IPC分类号： C22C32/00 ,  C22C29/00

CPC分类号： C22C32/0036 ,  C22C32/0089

摘要： A process for the production by power metallurgy of a material based on an aluminum alloy, a solid lubricant and at least one ceramic is disclosed. The process is characterized by using a ceramic in powder form with a granulometry of between 1 and 10 .mu.m.This invention finds application in the manufacture of components which are subjected to friction, in particular under hot condition, such as engine liners. These components provide an optimum compromise coefficient of friction and resistance to seizure and wear.

摘要翻译： 公开了一种通过电力冶金生产基于铝合金，固体润滑剂和至少一种陶瓷的材料的方法。 该方法的特征在于使用粉末形式的陶瓷，其粒度在1至10μm之间。 本发明可用于制造经受摩擦的部件，特别是在热条件下，例如发动机衬套。 这些部件提供了最佳的摩擦系数和抵抗咬合和磨损的能力。

公开(公告)号：US4799976A

公开(公告)日：1989-01-24

申请号：US165008

申请日：1988-03-07

申请人： Philippe Meyer

发明人： Philippe Meyer

IPC分类号： C22F1/04 ,  C22F1/00 ,  C22F1/02 ,  C21D1/74

CPC分类号： C22F1/02

摘要： The invention relates to a process for improving the surface condition of Li-containing Al alloy products. According to the process, heating at a temperature exceeding 300.degree. C. takes place in an atmosphere containing, in volume percent, 5 to 98% CO.sub.2, 2.ltoreq.dry air.ltoreq.95% and the remainder water. The process prevents the appearance of surface pitting and reduces the depth of the Li-depleted surface zone.

摘要翻译： 本发明涉及一种改善含Li的Al合金产品的表面状态的方法。 根据该方法，在超过300℃的温度下进行加热，其体积含有体积百分数为5至98％的二氧化碳，2％的干燥空气（95％）和剩余的水。 该过程可以防止表面凹陷的出现，并减少耗尽Li表面积的深度。

公开(公告)号：US4955413A

公开(公告)日：1990-09-11

申请号：US156595

申请日：1988-02-17

申请人： Philippe Meyer ,  Bruno Dubost

发明人： Philippe Meyer ,  Bruno Dubost

IPC分类号： C22C21/00 ,  C22C21/06 ,  C22C21/10 ,  C22C21/12 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/053 ,  C22F1/057

CPC分类号： C22F1/057 ,  C22C21/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/053

摘要： The invention concerns an Al alloy product containing lithium, with great specific mechanical strength and high tolerance to damage, particularly resistance to corrosion under stress in processed state (quenched-tempered), particularly in recrystallized state, and a process to obtain said product.The products according to the invention present a specific microstructure, with numerous rather coarse precipitates of intermetallic phases which are rich in Al, Cu, Li, Mg and optionally also Zn, of which the volume fraction is between 0.6 and 4%. A differential enthalpic analysis allows verification that the product has been processed according to the method which is claimed.This method consists of applying the following thermal treatments to the alloy:an optional heat maintenance stage in the course of the manufacture (for wrought alloys) or before placement in solution (for the cast alloys) at a temperature of between 490.degree. and 250.degree. C. for 1 to 48 hours.a placement in solution between 460.degree. C. and T.sub.M (.degree.C.) =474+18.2 (%2i) 2% Cu (%Cu-1.7)+% Mg (-17.6+3.6% Li +4.3% Cu)-3% Zn.The recrystallized products which are thus treated are not sensitive to corrosion under stress in the long transverse direction for the flat products and also present a good fatigue resistance.These products are intended essentially for use in aeronautical and gas space industries.

摘要翻译： 本发明涉及一种含有锂的Al合金产品，具有很高的机械强度和较高的损伤耐受性，特别是在加工状态（淬火回火），特别是在再结晶状态下的应力下的耐腐蚀性，以及获得所述产品的工艺。 根据本发明的产品具有特定的微观结构，其中富含Al，Cu，Li，Mg和任选还含有Zn的金属间相的许多相当粗大的沉淀物，其体积分数为0.6至4％。 差分焓分析允许验证产品是否已根据所要求保护的方法进行处理。 该方法包括对合金进行以下热处理：在制造过程中（对于锻造合金）或在放置在溶液（用于铸造合金）中的温度为490°至250°之间的可选的热维持阶段 C. 1至48小时。 溶解度在460℃和TM（℃）= 474 + 18.2（％2i）2％Cu（％Cu-1.7）+％Mg（-17.6 + 3.6％Li + 4.3％Cu）-3 ％Zn。 如此处理的再结晶产物对于扁平产品在长横方向的应力下对腐蚀不敏感，并且还具有良好的耐疲劳性。 这些产品主要用于航空和天然气行业。