铸铁平板,铸铁平台质量的检测方法

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铸铁平板,铸铁平台质量的检测方法

时间:2011-10-16 09:41 作者:admin 点击:

1. 铸铁平板(铸铁平台)应采用优质细颗料的灰口铸铁或合金铸铁制造。

2、铸铁平板(铸铁平台)工作表面应无有砂孔、气孔、裂纹、夹渣及缩松等铸造缺陷。各种铸造表面应清除型砂、且表面平整,涂漆牢固。各棱边应修钝。在精度等级低于“00”级的平板工作面上,对于直径小于15mm的砂孔允许用相同的材料堵塞,其硬度应低于周围材料的硬度。在工作面上堵塞的部位应不多于四处,其相互之间的距离应不小于80mm。

3、在铸铁平板(铸铁平台)的相对两个侧面上,应设置有安装手柄、吊环等吊装设施的螺纹孔或圆柱孔。设计吊装位置时应考虑尽量减少因吊装而引起的变动。

4、根据用户要求,在板工作面上设置螺纹孔或沟槽后,这些部位不应出现高于工作面的凸起现象。

5、铸铁平板(铸铁平台)工作表面应无有锈迹、划痕、碰伤及其他影响使用的外观缺陷。 6、铸铁平板(铸铁平台)工作面的硬度应为HB 170-220。

7、铸铁平板(铸铁平台)工作面应采用刮削工艺,对于“3”级平板工作面也可以采用刨削工艺,刨削工作表面的表面粗糙度按轮廓算术平均偏差Ra值应不大于5um

8、铸铁平板(铸铁平台)应经过稳定性处理和去磁。

1. Cast iron plate (cast iron platform) should adopt high quality fine makings of gray iron or alloy cast iron manufacturing.

2, cast iron plate (cast iron platform) work surface should be no more sand holes, porosity, cracks, slag and shrinkage defects in casting, etc. All kinds of casting surface should be cleared sand, and the surface level off, paint firm. Each should trim blunt edge. In the accuracy level below "00" class the plane working face, for less than 15 mm in diameter of sand holes allow in the same material jams the hardness, should be less than the hardness of the material around. In the working plane blocked part should be no more than around each other, the distance between should be not less than 80 mm.

3, in the cast iron plate (cast iron platform) of relative two side, shall set up have installed the handle, the suspension loop, the hoisting facilities or spur threaded hole hole. Design hoisting position should be considered when decrease as far as possible for lifting and cause changes.

4, according to user requirements, the working plane in plate setting threaded hole or groove, these place there should not be higher than the work raised phenomenon.

5, cast iron plate (cast iron platform) work surface should be no more the grunge, scratch, bruising and other effects of use cosmetic defects. 6, cast iron plate (cast iron platform) should be the hardness HB 170-220.

7, cast iron plate (cast iron platform) face the scraping process, should be used for "3" class flat face also can use cutting process, cutting work surface according to outline the surface roughness of the arithmetic average deviation Ra value should be no more than 5 um

8, cast iron plate (cast iron platform) should pass stability processing and demagnetising.
 

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