Abstract in simplified Chinese:一种中空框架构件被构成在两个表面平板ll,12(21,22)之间借由以椼架形链接多数肋13,13A,13B(23,23A,23B)。表面平板ll及21之一的端部是被放置在接近中空框架构件的椼架结构之顶点。表面平板12b及22b之另一个的端部是被从表面平板ll及21的端部突起。表面平板12b及22b是被从一上部实施摩擦搅拌链接。其次,一连接构件30是被配置在表面平板ll及21之间,且从一上部实施摩擦搅拌链接。借由肋13A,13B(23A,23B),在摩擦搅拌链接期间接受一负载,可以获得轻重量的结构及高刚性性能。
Abstract:
The invention relates to a gas distributor (1, 2) for a CVD reactor comprising two or more chambers (8, 9, 14), with supply lines ending therein, wherein at least one of the chambers (8, 9) forms a gas volume and is connected to gas outlet openings (23) associated with the bottom (2') of the gas distributor (1, 2) by means of a plurality of small tubes (11, 12, 13) crossing at least one other chamber (9, 14). For simplified production and technical enhancement, the gas distributor (1, 2), at least in the region of the small tubes (11, 12, 13), is made of a plurality of structured disks resting on top of each other, which are diffusion-welded to each other by pressure and temperature.
Abstract:
An abutted portion of face plates 12b and 22b of frame members 10 and 20 is carried out a friction stir joining. With the abutting, a raised portion 20c of an end portion of the face plate 20b of the frame member 20 is inserted into a recessed portion 12c of an end portion of the face plate 12b of the frame member 10. By this inserting-into, to an outer face of one face side of the face plates 12b and 20b there is no difference step. Next, to the inserting-into portion a rotary tool 250 is inserted from the raised portion 16 and 26 side of one face side of the face plates 12b and 20b, a side of another face 12bc and 20bc of the face plates 12b and 20b is carried out flatly by the friction stir joining. Accordingly, the abut joining can be carried out without the step-wise difference.
Abstract:
The invention relates to a structural element comprising at least two aluminium alloy parts which have different property trade-offs and which are welded together. According to the invention, at least one of the aforementioned parts is: (i) selected in an aluminium alloy that is different from the other of said at least two parts, and/or (ii) selected in an initial metallurgical state that is different from the other of said at least two parts. Moreover, at least one of the two parts has been pre-tempered prior to welding and the structural element is subjected to post-welding tempering, thereby conferring a final metallurgical state on each of said at least two parts. In addition, the parts are preferably welded by means of friction stir welding. The invention also relates to a method of producing said structural element.