In the clinical medical experiments usinghuman venous blood as specimensome take the serum from the specimen as the experimental object.The blood collection tubes suitable for this type of medical tests are called serum blood collection tube.
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Machining the rooted taper spline shaft on a gear hobbing machine
Our factory processes cylindrical involute splines with root taper (Fig. 1), with 12 teeth, double diameter joints 8,16, pressure angle 30°, outer diameter φ9.6h11, indexing circle diameter φ38.1mm, root The slope of the diameter is 2°55', which is characterized by the fact that the spline root and the root groove width are changed. The forming cutter is used in the universal milling machine K62W, and the effect is not good. To this end, we have modified the existing gear hobbing machine Y38-1,