The components that make up the motor casing must undergo a hydrostatic test after precision machining, and the test result must be maintained for 1 minute. The test result is considered qualified if there is discontinuous dripping (1 drop of water every 10 seconds is considered discontinuous dripping). When no reference pressure measurement is conducted, the test pressure is 1 MPa for Class I, IIA, and IIB motors; The pressure of the IIC motor is 1.5MPa. When conducting a hydrostatic test, the following points should be noted:
When conducting a hydrostatic test, the components should be handled with care and the explosion-proof surface should be protected to prevent collision.
After the hydrostatic test, the internal water and foreign objects of the components must be cleaned to prevent rusting. After the components are dried, the mating surfaces and threaded surfaces of the bolts and screw holes must be coated with anti rust oil before assembly.
3. The water pressure test site must have protective measures to prevent the casting from shattering or injuring people during the test.
During the storage and stacking process of components, hard cardboard or thin rubber sheets must be placed between layers to prevent collision.
