H180N1 Bearing housing shell
1.金加工后进行密封试验,试验压力为29.43Pa,试验时间为15分钟,要求轴承箱本身不渗漏.
2.用5倍放大镜检查铸件加工表面,不允许有气孔.
3.铸件尺寸偏差应符合JB2854-80中7级精度规定.
4.尺寸710mm需保证有足够的加工余量,不得有黑疤.
1. Seal test is carried out after gold processing, the test pressure is 29.43Pa, the test time is 15 minutes, and the bearing box itself is required not to leak.
2. Check the machining surface of the casting with a 5x magnifying glass, and no pores are allowed.
3. The size deviation of the casting shall comply with the 7-level accuracy specified in JB2854-80.
4. The size of 710mm should ensure that there is sufficient processing margin, and there should be no black scar.