Pump test methods and experimental equipment required

First, the type of test

1. External characteristics test: type test, factory test

Type test: running test, performance test, cavitation test, noise test

2. Internal characteristic test: speed field measurement, blade surface tension measurement, flow display and pressure pulsation measurement

3. Strength test: axial force radial force measurement, hydraulic torque measurement

4. Other project tests: seal test, material test and energy balance test

Second, the test device

Investment Casting Lost Wax Casting

Investment casting, which is also known lost wax casting or precision casting, refers to the formation of ceramic around the wax patterns to create a multi or single part mold to receive molten metal. This process utilizes an expendable injection molded wax pattern process to achieve complex forms with exceptional surface qualities. To create a mold, a wax pattern, or cluster of patterns, is dipped into ceramic material several times to build a thick shell. Die-wax process is then followed by the shell dry process. The wax-less ceramic shell is then produced. Molten metal is then poured into the ceramic shell cavities or cluster, and once solid and cooled, the ceramic shell is broken off to reveal the final cast metal object. Investment castings can achieve exceptional accuracy for both small and large castings in a wide range of materials.