鑄鐵平板平臺(tái)技術(shù)指標(biāo)及配置

時(shí)間：2015/12/26 13:20:23 瀏覽量：392 技術(shù)指標(biāo)及配置
1) 鑄鐵平臺(tái)主要技術(shù)參數(shù)和要求：試驗(yàn)平臺(tái)單塊加工后保證圖紙要求的精度，拼接后達(dá)到使用要求；所有工件在本廠鑄造加工。
2) 鑄鐵平臺(tái)鑄件采用水泥砂鑄造，材質(zhì)為HT250，材質(zhì)嚴(yán)格按GB9439-2010規(guī)定制作；鑄件尺寸公差按GB6414-1999標(biāo)準(zhǔn)執(zhí)行。
3)工作表面硬度為HB180-240，抗拉強(qiáng)度≥220.Mpa,時(shí)效處理
4)鑄鐵平板的安裝布置方式及位置嚴(yán)格按土建圖施工，整體平面安裝后上平面與地坪齊平（±0.000）。
5)鑄鐵平板工作面加工與T型槽粗糙度Ra≤3.2，其它加工面Ra6.3，執(zhí)行標(biāo)準(zhǔn)GB1031-2009；鑄鐵平板上平面度誤差與垂直度誤差必須滿足圖紙要求。
6) 鑄鐵平板上設(shè)有T型槽，按圖紙要求制作，安裝時(shí)出口可放入T型固定螺栓。T型槽按GB158-1996標(biāo)準(zhǔn)執(zhí)行。
7)采用先進(jìn)鑄造工藝，嚴(yán)格控制鑄件五大元素的成份及含量，鑄件表面平整無(wú)裂紋、無(wú)縮孔、無(wú)夾灰渣。表面缺陷按照國(guó)家標(biāo)準(zhǔn)處理。
8)在鑄造過(guò)程中必須保證兩次回火處理。
第一次：在鑄件毛坯檢驗(yàn)合格后回火處理，消除鑄造應(yīng)力。
第二次：在毛坯粗加工完成后進(jìn)行回火處理，消除機(jī)加工破壞鑄件平衡態(tài)所產(chǎn)生的應(yīng)力。
9)鑄鐵平板的加工成品尺寸按GB2822-2005標(biāo)準(zhǔn)執(zhí)行，精度計(jì)量檢定規(guī)程按JJG117-2005標(biāo)準(zhǔn)和形位公差按8級(jí)GB1182-1184-1996標(biāo)準(zhǔn)執(zhí)行。
10)鑄鐵平板加工表面做防銹油刷涂，鑄件外表面不加工須批膩、磨光，地錨器凹面處涂防銹漆；表面平整光亮。鑄件內(nèi)表面均需涂防銹漆；
11）平板的工作面與側(cè)面及相鄰兩側(cè)面的垂直度公差為0.1mm,
12）平板具有足夠的強(qiáng)度及承載能力，其承載力≥300KV/㎡.
13)主要配置地鉚器及相應(yīng)配件。

14)鑄鐵平板制造執(zhí)行標(biāo)準(zhǔn)GB4986-85標(biāo)準(zhǔn)與JB/T7974-1999標(biāo)準(zhǔn)。

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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