武漢檢測平臺的精度,武漢檢測平臺的廠家的簡單介紹

武漢檢測平臺的精度,武漢檢測平臺的廠家的詳細信息

武漢檢測平臺的精度,武漢檢測平臺的廠家

武漢檢測平臺外形：按JB/T7974-1999標準制造，產品制成筋板式和箱體式，檢測平臺工作面有長方形、正方形或圓形。檢測平臺(平板)材料：高強度鑄鐵HT200--300，工作面硬度為HB170--240，經過兩次人工處理（人工退火600°--700°和自然時效2--3年）使該產品的精度穩定，耐磨性能好。檢測平臺(平板)用途：適用于各種檢驗、檢測工作，精度測量用的基準平面用于機床機械檢驗測量基準，檢查，并作精密零件的尺寸精度或行為偏差，并作精密劃線，在機械制造中也是不可缺少的基本工具。

Cast Iron Inspection Plate

Cast Iron Inspection Plate can be made into rib type and box type and the working surface are typically square, rectangular or round and are allowed to machined V, T or U-shaped grooves and round holes or other holes.

Material:

The material of Cast Iron Testing Plate is high-strength cast iron HT200 and HT250. After two times’ artificial heat aging treatment( Artificial annealing temperature 600℃ to 700℃or 2-3 years natural aging) the internal stress was totally eliminated, so the surface plate have stable accuracy and good wear-resisting performance.

Usage:

Cast Iron Testing Surface Plate is always used as the datum for measurement of the machinery parts’ geometric tolerance,such as flatness, parallelism, straightness and more. It is also can be used for precision inspection, marking out (layout), and tooling setup. It is an indispensable basic equipment in most mechanical manufacturing industries.

檢測平臺質檢標準

1、檢驗平板工作表面不應有銹跡、劃痕、碰傷及其他影響使用的外觀缺陷。

2、檢驗平板工作面的硬度應為HB 170-220。

3、檢驗平板相對兩個側面上，應設置有安裝手柄、吊環等吊裝設施的螺紋孔或圓柱孔。設計吊裝位置時應考慮盡量減少因吊裝而引起的變動。

4、檢驗平板工作表面不應有砂孔、氣孔、裂紋、夾渣及縮松等鑄造缺陷。各種鑄造表面應清除型砂、且表面平整，涂漆牢固。各棱邊應修鈍。在精度等級低于“00”級的平板工作面上，對于直徑小于15mm的砂允許用相同的材料堵塞，其硬度應低于周圍材料的硬度。在工作面上堵塞的部位應不多于四處，其相互之間的距離應不小于80mm。

5、鑄鐵檢驗平板應經過穩定性處理和去磁

6、檢驗平板應采用優質細顆料的灰口鑄鐵或合金鑄鐵制造。

7、檢驗平板工作面應采用刮削工藝，對于“3”級平板工作面也可以采用刨削工藝，刨削工作表面的表面粗糙度按輪廓算術平均偏差Ra值應不大于5um

8、根據用戶要求，在檢驗平板工作面上設置螺紋孔或溝槽后，這些部位不應出現高于工作面的凸起現象

Quality testing standard for Cast Iron Inspection Plate:

1. The working surface, when inspected visually, shall be free from blowholes, sand holes, cracks, slag inclusions scratches, porous patches and other visual flaws.

2. The raw material of Cast Iron Surface Plate shall be the close-grained cast iron whose hardness is of HB 170~220.

3.The working surface shall be clean and uniform and the other sides shall be painted well..

4. The plugging of blowholes or porous patches in the working surface with material of a similar composition is permitted provided that such a repair does not affect stability or accuracy.

5. Where tapped holes or inserts are required the necessary work shall be carried out before the working surface is finished.

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