Preparing method for medical product hollow needle material
A hollow needle and product technology, which is applied in the field of medical titanium alloy material processing, can solve problems such as the processing difficulties of thick-walled and small-diameter hollow needle materials, and achieve the effect of solving production and processing difficulties, stable inner and outer diameters, and satisfying mass production.
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Embodiment 1
[0037] In this embodiment, the preparation method of the hollow needle material for medical products is as follows:
[0038] Step 1. Select a φ30.0mm bar blank, and use mechanical drilling to process a φ8.0mm inner hole. The inner wall of the through hole is smooth, and the surface roughness is not greater than Ra1.6 microns.
[0039] Step 2: Select a stainless steel mandrel, the surface roughness of which is not greater than Ra1.6 microns.
[0040] Step 3: MoS is used on the surface of the mandrel 2 The coating is lubricated and filled in the through hole; MoS 2 The thickness of the coating is 0.1-0.2mm, and the two ends are sealed after filling.
[0041] Step 4: Use the swaging process to process the bar blank below φ20mm, extract and replace the mandrel between two adjacent fires, and clean the inner surface after the mandrel is drawn.
[0042] Step 5. Drawing the billet below φ20mm, using a fixed mandrel or a floating mandrel, or using the mandrel to follow the deformat...
Embodiment 2
[0051] In this embodiment, the preparation method of the hollow needle material for medical products is as follows:
[0052] Step 1. Select a φ45.0mm bar blank, and use mechanical drilling to process a φ10.0mm inner hole. The inner wall of the through hole is smooth, and the surface roughness is not greater than Ra1.6 microns.
[0053] Step 2: Select a stainless steel mandrel, the surface roughness of which is not greater than Ra1.6 microns.
[0054] Step 3: MoS is used on the surface of the mandrel 2 The coating is lubricated and filled in the through hole; MoS 2 The thickness of the coating is 0.2-0.3mm, and the two ends are sealed after filling.
[0055] Step 4: Use the swaging process to process the bar blank below φ20mm, extract and replace the mandrel between two adjacent fires, and clean the inner surface after the mandrel is drawn.
[0056] Step 5. Drawing the billet below φ20mm, using a fixed mandrel or a floating mandrel, or using the mandrel to follow the deforma...
Embodiment 3
[0065] In this embodiment, the preparation method of the hollow needle material for medical products is as follows:
[0066] Step 1. Select a φ60.0mm bar blank, and use mechanical drilling to process the φ15.0mm inner hole. The inner wall of the through hole is smooth, and the surface roughness is not greater than Ra1.6 microns.
[0067] Step 2: Select a stainless steel mandrel, the surface roughness of which is not greater than Ra1.6 microns.
[0068] Step 3: MoS is used on the surface of the mandrel 2 The coating is lubricated and filled in the through hole; MoS 2 The thickness of the coating is 0.3-0.4mm, and the two ends are sealed after filling.
[0069] Step 4: Use the swaging process to process the bar blank below φ20mm, extract and replace the mandrel between two adjacent fires, and clean the inner surface after the mandrel is drawn.
[0070] Step 5. Drawing the bar blank below φ20mm, using a fixed mandrel or a floating mandrel for drawing, or using the mandrel to f...
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Abstract
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Application Information
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