CN1016147B - 轻型金属型材制造法 - Google Patents

轻型金属型材制造法

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CN1016147B
CN1016147B CN88100265.8A CN88100265A CN1016147B CN 1016147 B CN1016147 B CN 1016147B CN 88100265 A CN88100265 A CN 88100265A CN 1016147 B CN1016147 B CN 1016147B
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莱夫·萨尔曼诺维奇·施蒂英伯克
依格尔·沃维奇·施蒂英伯克
阿莱克桑德·瓦希利维奇·萨吉罗夫
莱奥尼德·索洛莫诺维奇·达维多夫
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OPYTNOE PROIZVOPSTVENNO-TEKHICHESKOE PREDPRIYATIE "ENERGOTEKHPROM"
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Abstract

轻型金属型材的制造方法是,将卷材铺成板材,加以校正,在弯曲处理前沿折曲线将板材纵向分割成两个以上构件,改变其中至少一个构件的运动轨迹,将加工成的构件(5、6、7)在一个平面内沿边缘相对接,组成至少一个分布着载横线的带材,再焊成一体。

Description

本发明属冶金类,具体说,是一种制造轻型金属型材的方法。
本制造法是适用于制造各个工业领域,特别是建筑业中广泛应用的梁、柱、横梁,以及其它结构。
采用成型轧材制造轻型金属型材的方法已广为人知。采用这种方法,须将轧料(槽钢或工字钢)沿纵向曲折地分割成两个构件。然后将构件分离开,使其曲折边的凸出部分相对接,再通过焊接制成轻型型材。按这种方法,可采用热轧钢材得到制品。与此同时,采用已知方法制造轻型金属材料必会产生较多的金属废料。另外,由于坯料为槽钢、工字钢和Z形材,用此方法能加工出的轻型型材的种类也受到限制。
另一已知的轻型金属型材制造法是:将卷材铺成板材,加以校正,再进行弯曲处理,加工成型材,按规定长度切割型材,并沿折曲线将其分割成构件,再将加工好的构件相互对接,组成分布着截线的型材,最后焊接成形(扬·劫鲁德卡和其他“轻型钢结构”1974年,建筑出版社<莫斯科>,第320-325页)。
采用这种方法,可选用弯曲型材加工轻型金属型材。但是,与前面所述的方法一样,加工型材的种类有限。另外,为了达到无废生产和沿折曲线纵向分割弯曲型材工序的连续性,须逐件将弯曲型材焊成一条线,并在焊接前对型材的两端进行处理。这就需要有辅助的工艺 作业,以及与之相应的设备、工具和劳动消耗。
沿折曲线纵向分割应在弯曲型材的壁上进行,也就是说,分割应在板材造型后进行。因此,会导致被分割的构件受弯曲型材的内部应力的影响而变形。为了防止构件在其折曲边凸出部完全接合前产生变形,需要采用金属用量大的设备(辊床或伴用夹具)。
由于只能沿一条折曲线对弯曲型材壁进行纵向分割,所以,增加轻型金属型材的高度的可能性受到限制。
弯曲型材被分割构件的折曲边的凸出部,应采用焊条焊接,或在二氧化碳环境下实施半自动焊接。这就会增加辅助材料消耗(焊条、焊丝、二氧化碳)。为了达到与已知制造法的工艺作业线相应的生产能力,必须配备大量焊机。
采用塑性变形法,即先加热折曲边,再将氧化物挤压成焊瘤来焊接构件会降低轻型金属材料壁的高度。弯曲型材构件的残余应力、焊接时产生的变形、制成的轻型金属型材未经校准,均会破坏型材的几何形状,即降低型材的质量。
本发明的任务是创立一种制造轻型金属型材的方法,其作业顺制序,以及实施作业的特点,能够提高流程的工艺性,使之转变为连续的、全部自动化的无废流程,并能够提高轻型金属型材的质量,增加型材的种类。
实现本发明任务的方法是:将卷材铺成板材,并加以校正,再弯曲加工成型材,并按规定长度进行切割,沿折曲线将型材纵向分割成构件,再将加工好的构件对接起来,组成分布着截线的型材,最后焊接成形的轻型金属型材制造方法。根据本发明,沿折曲线纵向分割板材应在弯曲处理前进行,并且至少分割成两个构件,至少改变一个构 件的运动轨迹,使得到的这些构件沿边缘在一个平面内对接,组成至少一个分布着截线的带材,并焊接起来。
至少改变一个构件轨迹的实现方法,最好采用螺旋运动。
这样能够在连续工艺过程中使沿折曲线分割开的构件退出啮合,并沿着边缘以不同的组合对接成分布着截线的带材。
为了得到带孔的、分布着截线的带材,须将构件按折曲边的凸出部对接。
为了得到无孔的分布着截线的带材,须将构件的直线边对接。
为提高生产率,节约焊接材料以及在板材连续运动过程中完成焊接,最好采用塑性变形的方式进行焊接。
在进行塑性变形焊接时,须将相邻构件在纵向上向相反的方向扭转,随后再使构件相互成一个平面。
这种通过将构件的焊接边之间组成必要的接触角的方法,能改善塑性变形法焊接的条件。同时,还能够在以分布着截线的带材的外缘为基准进行焊接时补偿材料的收缩,并减少外缘出现月牙弯的现象。
为了得到孔位按方格-蜂巢方式排列、分布着截线的带材,在沿折曲线将板材纵向分割成三个构件时,中间构件的折曲线必须对称。另外,这样还能够将中间构件加工成带折曲边的对称角材。
为了得到孔位呈棋盘状排列、分布着截线的带材,在沿折曲线将板材纵向分割成三个构件时,中间构件的折曲边相互间必须是对应的。
为了改善轧辊型材的造型,必须在将两个以上构件焊接成分布着截线的带材后打磨焊缝。
为了同时得到两种型式的轻型金属型材,可在沿折曲线将板材纵 向分割成四个构件时,将构件成对焊接,相应地组成带有直线边和折曲边的分布着截线的带材,然后将上述带材卷绕起来。
以下列举的是根据本发明的轻型金属型材制造法的具体实施例,并配有附图,其中:
图1为采用卷坯板材制造轻型型材的工艺线示意图;
图2为焊接装置的局部立面图;
图3与图2相同;
图4、10、11;13-20为采用本制造方法加工的成品;
图5为沿折曲线将板材纵向分割为三个构件,并使中间构件各边相互对应的局部立面图;
图6为孔位呈棋盘状排列的分布着截线的带材局部立面图;
图7为沿折曲线将板材纵向分割成四个构件的局部立面图;
图8为直线边的分布着截线的带材的局部立面图;
图9与上同,但有折曲边;
图12为焊接金属结构实例。
本轻型金属型材制造法是:将卷材铺成板材,并加以校正。校正后沿折曲线将板材纵向分割成两个以上的构件。然后,通过螺旋运动改变至少一个构件的运动轨迹。螺旋运动能够在连续工艺过程中使沿折曲线分割出的构件退出啮合,并在一个平面内把它们的边缘相对接,组成至少一个分布着截线的带材。然后,将对接好的构件焊接起来。加工出的分布着截线的带材经过弯曲处理,即形成弯曲的轻型型材。最后,将型材按规定长度进行切割。
当需要加工出有孔的弯曲轻型金属型材时应采用将构件折曲边的凸出部对接制成的、分布着截线的有孔带材。当需要加工出无孔的弯 曲轻型金属型材时,则应将构件的直线边对接成一个分布着截线的带材。
为提高生产率、节约焊材,采用塑性变形法进行焊接。为此,应将相邻构件在纵向上向相反方向扭转,然后使它们相互成一个平面。这是为了使构件的焊接边之间构成必要的接触角,以改善焊接条件。另外,在纵向上向相反方向扭转构件,能够在以分布着截线的带材的外缘为基准焊接时补偿材料的收缩,并能减少外缘出现月样弯缺陷。
在按工艺要求需加工出孔位呈方格-蜂巢方式配置的、分布着截线的带材时,可沿折曲线将板材纵向分割成三个构件。在这种情况下,中间构件的折曲边应相互对称。
如果上述折曲边相互间呈对应状态,即可加工出孔位呈棋盘状排列,分布着截线的带材。
如果根据工序的工艺要求,必须同时加工出两条分布着截线的带材时,则应沿折曲线将板材纵向分割,如分成四个构件。在这种情况下,应将构件成对焊接,相应地组成带有直线边和折曲边的分布着截线的带材。再将加工出的带材绕起来,以后再送去做弯曲处理。
本轻型金属型材制造方法,可采用已知的设备,以自动工况作业实现。
将成卷的板材2装到松卷装置1(图1)上。再将板材送入校正装置3进行校正。板材经过校正后进入纵向分割装置4,沿折曲线进行分割。如分割成三个构件5、6、7,并且构件6的折曲边相互对称。
为使构件5、6、7退出啮合,应通过给构件增设螺旋运动来改变其运动轨迹。然后,在一个平面上将构件5、6、7折曲边的凸出 部在区域8对接,组成孔9,并进入装置10焊接。
焊接采用塑性变形法。为此,相邻构件,如5和6,应在纵向上向相反方向扭转。
将焊接边加热到金属的熔点温度,在装置10的轧辊11、12(图2)中相接触。然后,借助轧辊13、14(图3)把构件5、6相互摆成一个平面,并在焊以前同时挤压构件外缘,把金属氧化物压成焊瘤15。类似地,把加工好的分布着截线的部分条带与构件7(图1)焊接。
所有构件5-7焊接完毕后,在装置16中打磨焊缝(如使用刀具)。
然后,在装置17的轧辊内加工出弯曲的轻型金属型材,如槽钢18(图4)。它在装置19(图1)中按规定长度进行切割。切割可采用任何已知方法,如使用轮盘锯(图中未示出)。
如果构件6(图5)的折曲边相互之间对应,则按上述方法可加工出孔位20呈棋盘状排列的轻型金属型材(图6)。
在必须同时加工出两个分布着截线的带材时,在纵向分割装置4(图1)中将板材沿折曲线分割成四个构件21-24(图7)。在这种情况下,应在装置10(图1)中按上述方法在构件21、24之间(图7)实施成对焊接,组成直线边的分布着截线的带材25(图8);将构件22和23焊接起来,组成折曲边的分布着截线的带材26(图9)。然后,按上述方法将加工的带材25(图8)和26(图9)制成轻型弯曲型材。带材25(图8)可加工成带有直线边和槽钢27(图10),带材26(图9)可加工成带有折曲边的槽钢28(图11),还可以进一步将其加工成大尺寸的焊接金属 结构,如箱29(图12)。
由此可见,根据本发明的制造方法,能保证工艺流程全部实现自动化,形成连续的无废流程,提高用分布着截线的带材加工成轻金属型材的质量,并增加型材的种类。如开口型的型材槽钢(图13),C形材(图14),Z形材(图15、16),角材(图17、18)等,以及封闭型的型材;方形截面(图12、19),矩形截面(图20)等等。

Claims (9)

1、轻型金属型材制造方法,其特征在于,其步骤包括:将卷材料(2)铺成板材料,并加以校正;沿折曲线将板材料纵向分割成两个到四个构件(5、6、7),改变其中至少一个构件的运动轨迹,将构件(5、6、7)在一个平面内沿边缘对接,按规定长度切割并焊接成一体。
2、根据权利要求1所述的制造方法,其特征在于:改变至少一个构件(5、6、7)的运动轨迹是通过螺旋运动来完成的。
3、根据权利要求1所述的制造方法,其特征在于:将构件(5、6、7)相对接是沿折曲边凸出部进行的。
4、根据权利要求1所述的制造方法,其特征在于:将构件(5、7)相对接是沿直线边进行的。
5、根据权利要求1所述的制造方法,其特征在于:焊接步骤通过塑性变形法来进行的。
6、根据权利要求1所述的方法,其特征在于:在焊接步骤中,将相邻构件(5、6、7)在纵向上向相反方向转动,然后使它相互构成一个平面。
7、根据权利要求1所述的方法,其特征在于:在沿折曲线将板材料纵向分割成三个构件(5、6、7)的步骤中,中间构件(6)的折曲边之间相互对称。
8、根据权利要求1所述的方法,其特征在于:在沿折曲线将板材料纵向分割成三个构件(5、6、7)的步骤中,中间构件(6)的折曲边之间相互对应。
9、根据权利要求1所述的方法,其特征在于:在将板材料分割成两到四个构件的步骤中,沿折曲线将板材纵向分割成四个构件(21、22、23、24)而在所述构件(21、22、23、24)的焊接步骤中成对地焊成有直线边的分布着截线的带材料(25)和有折曲线边的分布着截线的带材(26),再将上述带材(25、26)卷绕起来。
CN88100265.8A 1987-01-23 1988-01-23 轻型金属型材制造法 Expired CN1016147B (zh)

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