什么是座浆法,无垫铁施工和座浆法的区别是什么,

什么是座浆法,无垫铁施工和座浆法的区别是什么?
2025-04-04 21:08:25
推荐回答(1个)
回答(1):

座浆法施工:座浆法简单地说就是在垫铁和基础之间座入混凝土砂浆,以达到垫铁安装的目的,提高垫铁的安装质量。
无垫铁施工是一种比较新的施工方法。这种方法在保证施工质量的前提下,可以节约大量钢材。无垫铁施工要求:
(1)无垫铁施工时的设备找平、找正、调标高时,可用斜垫铁、调整垫铁、调整螺钉等工具将设备的水平和标高调整到符合要求后,进行第二次灌浆(调整工具处不灌)。
(2)待灌浆层强度达到75%以上时,撤出调整工具,然后将留出的位置用灌浆料填实,并再次坚固地脚螺栓,复查设备精度。

最大区别,一个有垫铁,一个没有,有的成本高,没有的成本低。
但是个人建议您考虑一下要安装的物体转速和移动,防震条件怎么样,再做选择,如果只是学术了解,哪就无所谓了。
不过,帮人还是帮到底算了,两样的优点,缺点您再考虑一下:
无垫铁安装 :
1、优缺点:调整方便、稳定性好、没有垫铁腐蚀,二次灌浆比较烦琐。适用于底座底面较平整的机器。
2、操作要点:
2.1支撑工具(千斤顶、顶丝、临时垫铁)的数量和布置的位置要根据机器的重量、底座结构等计算确定好。
2.2支持顶丝用的钢垫板顶面水平度允差为2mm/m。
2.3二次灌浆务必用6磅手锤和专用打击捣浆工具捣实混凝土或砂浆。
2.4二次灌浆层达到设计强度的75%以上时,方允许去掉支撑件,并同时复测机器的平衡度。
垫铁安装:
1、优缺点:安装和调整垫铁水平比较麻烦,要求比较高,存在垫铁腐蚀,应用面比较广泛,适用于大型机器。
2、操作要点:
2.1放置垫铁处要铲出麻面,麻点深度不小于10mm,每平方分米内有3~5个,水平度允差为2mm/m。
2.2垫铁接触面应铣出,无氧化皮和飞边,光洁度和斜度达到要求。
2.3斜垫铁配对使用,与平垫铁组成垫铁组时,一般不超过四层,薄垫铁放在斜垫铁与平垫铁的中间,垫铁组高度一般为30~70mm.
2.4垫铁与基础接触面积不小于50%,平垫铁顶平面水平度允差为2mm/m,各垫铁组顶面的标高应与机器底面实际安装高度一致。
2.5机器找平后,垫铁组应露出机器底座10~30mm,每垫铁组伸入机器底座底面的长度,均应超过地脚螺栓。
2.6配对斜垫铁的搭接长度不应小于全长的3/4,其相互间的偏斜角应不大于3度。
2.7找平找正后,应检查垫铁无松动和垫铁之间及垫铁与底座之间的间隙符合规定,无问题后,垫铁组两侧进行层间电焊固定。

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