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铸铁平板平台技术指标及配置

时间：2015/12/26 13:20:23 浏览量：420 技术指标及配置
1) 铸铁平台主要技术参数和要求：试验平台单块加工后保证图纸要求的精度，拼接后达到使用要求；所有工件在本厂铸造加工。
2) 铸铁平台铸件采用水泥砂铸造，材质为HT250，材质严格按GB9439-2010规定制作；铸件尺寸公差按GB6414-1999标准执行。
3)工作表面硬度为HB180-240，抗拉强度≥220.Mpa,时效处理
4)铸铁平板的安装布置方式及位置严格按土建图施工，整体平面安装后上平面与地坪齐平（±0.000）。
5)铸铁平板工作面加工与T型槽粗糙度Ra≤3.2，其它加工面Ra6.3，执行标准GB1031-2009；铸铁平板上平面度误差与垂直度误差必须满足图纸要求。
6) 铸铁平板上设有T型槽，按图纸要求制作，安装时出口可放入T型固定螺栓。T型槽按GB158-1996标准执行。
7)采用先进铸造工艺，严格控制铸件五大元素的成份及含量，铸件表面平整无裂纹、无缩孔、无夹灰渣。表面缺陷按照国家标准处理。
8)在铸造过程中必须保证两次回火处理。
第一次：在铸件毛坯检验合格后回火处理，消除铸造应力。
第二次：在毛坯粗加工完成后进行回火处理，消除机加工破坏铸件平衡态所产生的应力。
9)铸铁平板的加工成品尺寸按GB2822-2005标准执行，精度计量检定规程按JJG117-2005标准和形位公差按8级GB1182-1184-1996标准执行。
10)铸铁平板加工表面做防锈油刷涂，铸件外表面不加工须批腻、磨光，地锚器凹面处涂防锈漆；表面平整光亮。铸件内表面均需涂防锈漆；
11）平板的工作面与侧面及相邻两侧面的垂直度公差为0.1mm,
12）平板具有足够的强度及承载能力，其承载力≥300KV/㎡.
13)主要配置地铆器及相应配件。

14)铸铁平板制造执行标准GB4986-85标准与JB/T7974-1999标准。

Technical indicators and configuration
1) Main technical parameters and requirements of cast iron platform: After the single-piece processing of the test platform, the precision required by the drawings is guaranteed, and the requirements are met after splicing; all the workpieces are cast and processed in the factory.
2) The castings of cast iron platform are made of cement sand, the material is HT250, the material is made strictly according to the provisions of GB9439-2010; the dimensional tolerance of castings is carried out according to GB6414-1999 standard.
3) Working surface hardness is HB180-240, tensile strength ≥ 220.Mpa, aging treatment
4) The installation layout and position of the cast iron plate are strictly in accordance with the civil construction drawing. After the overall plane installation, the upper plane is flush with the floor (±0.000).
5) Cast iron plate working surface processing and T-slot roughness Ra≤3.2, other processing surface Ra6.3, implementation standard GB1031-2009; flatness error and perpendicularity error on cast iron plate must meet the drawing requirements.
6) T-shaped groove is provided on the cast iron plate, which is made according to the drawings. When installing, the T-shaped fixing bolt can be placed at the exit. The T-slot is implemented in accordance with the GB158-1996 standard.
7) Using advanced casting technology, strictly control the composition and content of the five elements of the casting, the surface of the casting is smooth without cracks, shrinkage holes, and no ash. Surface defects are treated in accordance with national standards.
8) Two tempering treatments must be guaranteed during the casting process.
The first time: after the casting blank is qualified, it is tempered to eliminate the casting stress.
The second time: after the blank roughing is completed, the tempering treatment is performed to eliminate the stress generated by the machining to break the equilibrium state of the casting.
9) The finished product size of cast iron flat plate is implemented according to GB2822-2005 standard. The accuracy measurement and verification procedure is carried out according to JJG117-2005 standard and geometrical tolerance according to the standard of GB1182-1184-1996.
10) The surface of the cast iron plate is painted with anti-rust oil. The outer surface of the casting is not grouted and polished. The concave surface of the anchor is coated with anti-rust paint; the surface is smooth and bright. The inner surface of the casting must be coated with anti-rust paint;
11) The vertical tolerance of the working surface of the flat plate and the side and adjacent sides is 0.1 mm.
12) The plate has sufficient strength and load carrying capacity, and its bearing capacity is ≥300KV/m2.
13) The main configuration of the rivet and corresponding accessories.

14) Cast iron plate manufacturing implementation standard GB4986-85 standard and JB/T7974-1999 standard.

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