TechnologyProduction Technology
Molding Technology for
Resin Components
The strength of a resin component is determined not only by the shape but also by the flow direction of the material.
Using resin flow analysis, Tsurumi examines the flow condition and the shape in order to secure the predetermined strength and to enhance the productivity.
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Examining Fill Time
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Examining Weld Line
Use of CAM
Using 3D models created with CAD, Tsurumi uses CAM to generate programs for operating NC machines.
Machining programs are verified through simulation to identify and resolve potential issues before machining, enabling efficient NC machine operation.
CAM Machining Simulation
Measurement Technology
The geometries of the impeller and pump casing are key factors in determining pump performance.
As demand for higher efficiency increases, these components are becoming increasingly complex in three dimensions.
While conventional measurement relied on gauges to check representative dimensions, advanced measuring instruments enable faster,
more precise measurement over a wider area, supporting the production of high-performance, high-precision components.
Measurement of Geometric Tolerances
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Measurement of a Vacuum Pump Impeller
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Measurement of a Screw Pump Impeller
Shrink Fitting
of the Impeller and Shaft
In liquid ring pumps and other applications, shrink fitting may be used to join an impeller and shaft. The impeller is heated so that it expands and the shaft bore enlarges, allowing the shaft to be inserted.
As the impeller cools, it contracts around the shaft to form a tight interference fit.
Heating method, temperature, and temperature distribution can affect the impeller and may cause deformation.
Tsurumi therefore uses thermographic imaging to visualize temperature distribution and determine appropriate heating methods and conditions, helping ensure consistent, high-quality products.
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Impeller Temperature Distribution after Heating and before Shaft Insertion (Shaft bore near the center)
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Impeller Temperature Distribution Viewed from the Shaft-Bore Side
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Impeller Temperature Distribution Viewed from the Side
