鑄鐵平板是用(yong)于工(gong)件檢(jian)測或劃線的(de)平(ping)(ping)(ping)面基準器具。鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)用(yong)途(tu)比較廣泛，應用(yong)于機械(xie)制(zhi)造(zao)、化(hua)工(gong)、五金、航(hang)空航(hang)天(tian)、石(shi)油、汽車制(zhi)造(zao)、儀器儀表制(zhi)造(zao)等行(xing)業。根據(ju)用(yong)途(tu)不(bu)(bu)同，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)可分為(wei)檢(jian)驗(yan)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、檢(jian)測平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、劃線平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、焊(han)接平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、鉚焊(han)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、裝配(pei)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、火工(gong)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、振動試驗(yan)臺(tai)、基礎(chu)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、機床工(gong)作臺(tai)、鉗工(gong)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)等。根據(ju)制(zhi)造(zao)工(gong)藝不(bu)(bu)同可分為(wei)刮研平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、研磨平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)等。根據(ju)結(jie)構不(bu)(bu)同，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)可分為(wei)長方形鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、方形鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、圓形鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、箱(xiang)體式鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、筋(jin)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)式鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、單圍鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、雙圍鑄(zhu)(zhu)(zhu)鐵(tie)(tie)平(ping)(ping)(ping)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)等。

       鑄鐵平板使用磨損后，可以重新修刮恢復其精度。  鑄鐵平板可用涂色法檢驗零件平面度，具有準確、直觀、方便的優點。在經過刮研的鑄鐵平板上推動表座、工件比較順暢，無發澀感覺，方便了測量。  

鑄鐵平板的鑄鐵質量和熱處理質量對平板使用性能產生較大影響：或因殘存較大內應力使工作面變形；或因不損使精度不能保持；或因刮削困難得不到數值小的粗糙度。因此使用鑄鐵平板注意鑄鐵材料的選擇，采用時效處理等方法鑄鐵平板的殘余應力。  

技術要求：  

1、鑄鐵平板工作面不得有嚴重影響外觀和使用性能的砂孔、氣孔、裂紋、夾渣、縮松、劃痕、碰傷、繡點等缺陷。  

2、鑄鐵平板的鑄造表面應清楚型砂且平整，涂漆牢固。  

3、精度等級為0級~3級的鑄鐵平板工作面上，直徑小于15mm的砂孔允許用相同材料堵塞，其硬度應小于周圍材料的硬度。工作面堵塞的砂孔應不多于4個，且砂孔之間的距離應不小于80mm。  

4、鑄鐵平板應采用細密的灰口鑄鐵等材料制造，其工作面硬度應為170~240HB。  

5、鑄鐵平板工作面通常采用刮削工藝。對采用刮削加工的3級平板工作面，其表面粗糙度Ra允許值為5μm。  

6、鑄鐵平板應去磁和穩定性處理。  

7、鑄鐵平板相對兩個側面上，應有安裝手柄或吊環裝置的螺紋孔（或圓柱孔），且裝置位置的設計應盡量減少因搬運而引起的變形。  

8、若鑄鐵平板工作面上(shang)設置(zhi)螺紋孔（或(huo)溝槽），其部位(wei)應不(bu)高于工作面。