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    • 4. 发明授权
    • Method for assembling a structural panel in order to prevent the sag
thereof
    • 为了防止其下垂而组装结构板的方法
    • US4988032A
    • 1991-01-29
    • US498771
    • 1990-03-26
    • Akira SakaguchiHisashi UchibeToshiyuki Tange
    • Akira SakaguchiHisashi UchibeToshiyuki Tange
    • B21D1/00B23K31/02
    • B23K31/02Y10T29/49865Y10T29/49867
    • A method for facilitating the assembly of a structural panel and for preventing the sag thereof comprises the step of placing the structural panel (2), comprising an outer plate (6) and an underlying skeleton framework (7), upon longitudinally extending support beams (B') which interconnect the upper ends of laterally spaced rows of longitudinally spaced support columns (C) which extend upwardly from a floor support surface (F). A mobile radiation heating element truck (4), movable upon laterally spaced rails (8) by means of casters (11), includes radiation heating elements (12). The truck (4) is movable between operative successive operative positions, stages, or stations (A,B), and when the truck (4) is disposed at the first station (A), the plate (6), or a section thereof, is preheated to a predetermined temperature so as to thermally expand the same whereupon the truck (4) is then moved to the second station (B) so as to permit the thermally expanded plate (6) disposed at the first station (A) to be tack-welded and finish-welded to the underlying skeleton framework (7 ) while a second plate (6), or section thereof, is preheated to a predetermined temperature at the second station (B). Upon cooling of the heated plate (6) disposed at the first station (A), the plate (6) develops a residual tensile stress due to thermal shrinkage deformation whereby sag of the panel is effectively prevented. The support of the panel (2), including the plate (6) and the skeleton framework (7) at the elevated level or height above floor (F) provides substantially unobstructed access to the undersurface regions of the plate (6) and the skeleton framework (7) so as to facilitate the welding operations. Movement of the truck (4) to the next operative position or station (B) likwise provides substantially unobstructed access to the upper surfaces of the plate (6) and skeleton framework (7) so as to likewise facilitate the welding operations to be performed within such regions.
    • 6. 发明授权
    • Apparatus for assembling a structural panel in order to prevent the sag
thereof
    • 用于组装结构板以防止其下垂的装置
    • US4856700A
    • 1989-08-15
    • US246113
    • 1988-09-19
    • Akira SakaguchiHisashi UchibeToshiyuki Tange
    • Akira SakaguchiHisashi UchibeToshiyuki Tange
    • B21D1/00B23K31/02
    • B23K31/02Y10T29/49865Y10T29/49867
    • Apparatus for facilitating the assembly of a structural panel and for preventing the sag thereof comprises an upstanding support structure in the form of laterally spaced rows of longitudinally spaced columns (C) which extend upwardly from a floor support surface (F). Longitudinally extending support beams (B') interconnect the upper ends of the support columns (C), and the structural panel (2) comprising an outer plate (6) and an underlying skelton framework (7) is supported upon the support beams (B'). A radiation heating element truck (4), movable upon laterally spaced rails (8) by means of casters (11), include radiation heating elements (12) mounted upon a support panel (5) whereby the truck (4) is movable between first and second operative positions or stages (A, B). When disposed at a particular stage (A,B), the plate (6) is preheated to a predetermined temperature so as to thermally expand the same whereupon the truck (4) is moved to the next operative position stage (A,B) so as to permit the thermally expanded plate to be tack-welded and finish-welded to the underlying skeleton framework (7). Upon cooling of the heated plate (6), the plate (6) develops a residual tensile stress due to thermal shrinkage deformation whereby sag of the panel is effectively prevented. The support of the panel, including the plate (6) and skeleton framework (7) at an elevated height above the floor (F) provides substantially unobstructed access to the undersurface of the pate (6) and skeleton framework so as to facilitate the welding operations. Movement of the truck (4) to the next operative position or stage (A,B) likewise provides substantially unobstructed access to the upper surfaces of the plate (6) and framework (7) forming the structural panel (2).
    • 用于促进结构板的组装和防止其下垂的装置包括直立的支撑结构,其形式为从地板支撑表面(F)向上延伸的横向隔开的纵向间隔开的列(C)的行。 纵向延伸的支撑梁(B')互连支撑柱(C)的上端,并且包括外板(6)和下层骨架框架(7)的结构板(2)支撑在支撑梁(B ')。 辐射加热元件卡车(4),其通过脚轮(11)可横向间隔开的轨道(8)可移动,包括安装在支撑面板(5)上的辐射加热元件(12),由此卡车(4)可在第一 和第二操作位置(A,B)。 当设置在特定阶段(A,B)时,将板(6)预热到预定温度,以便热膨胀,于是卡车(4)移动到下一个操作位置台(A,B),从而 以允许热膨胀板被定位焊接并且被精加工焊接到下面的骨架框架(7)上。 在加热板(6)冷却时,板(6)由于热收缩变形而产生残余拉伸应力,从而有效地防止了板的下垂。 包括板(6)和骨架骨架(7)在板材(F)上方的高架上的支撑件基本上无障碍地进入到顶板(6)的下表面和骨架框架,以便于焊接 操作。 卡车(4)移动到下一个操作位置或阶段(A,B)同样为形成结构面板(2)的板(6)和框架(7)的上表面提供基本无阻碍的通道。