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Medical grinding wheel for grinding insulin needles and manufacturing method thereof

A technology for insulin and grinding wheels, which is applied in the manufacture of tools, abrasives, grinding devices, etc. It can solve the problems of small insulin puncture force, large needle tip puncture force, and high grinding efficiency, so as to reduce puncture force, reduce grinding scratches, The effect of improving grinding efficiency

Inactive Publication Date: 2016-08-17
QINGDAO SISA ABRASIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to solve the problem that there is currently no specialized grinding wheel for grinding insulin needles. Domestic insulin needle manufacturers can only use grinding wheels for grinding injection needles instead. During grinding, the needle tip is bent, resulting in needle tip bends, large burrs, and needle tip puncture force. For the defects of large defective products and low grinding efficiency, a special medical grinding wheel for grinding insulin needles and its manufacturing method are provided. The insulin needle tip is smooth, the needle tip is not bent, the puncture force is small, and the grinding efficiency is high. high

Method used

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  • Medical grinding wheel for grinding insulin needles and manufacturing method thereof
  • Medical grinding wheel for grinding insulin needles and manufacturing method thereof
  • Medical grinding wheel for grinding insulin needles and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0045] A grinding wheel for grinding insulin needles for medical use, its raw material components and weight percentages are: 65% of 2500 mesh silicon carbide, 11% of 1200 mesh ceramic corundum, 12% of modified resin, 7% of glass microspheres, 2% of cryolite powder, oxidized Zinc 3%. The raw material components and weight percentages of the modified resin are: 91% of phenolic resin and 9% of nitrile rubber. The particle size of the cryolite powder is 280 mesh, and the diameter of the glass microsphere is 0.5 mm.

[0046] The manufacturing process steps of the present embodiment are as follows:

[0047] 1) Mixing: pass the weighed ceramic corundum abrasive and silicon carbide abrasive through a 150# sieve, pour into the mixing pot and mix for 10 minutes, add modified resin and mix for 30 minutes, add fillers such as glass beads and mix for 10 minutes , through a 46# sieve;

[0048] 2) Turn on the preheating device of the molding equipment, set the pressure head temperature t...

Embodiment 2

[0060] A needle-tip grinding wheel for grinding insulin for medical use, its raw material components and weight percentages are: 2500 mesh silicon carbide 64%, 1200 mesh ceramic corundum 12%, modified resin 12%, glass microspheres 7%, cryolite powder 2%, zinc oxide 3%. The raw material components and weight percentages of the modified resin are: 91% of phenolic resin and 9% of nitrile rubber. The particle size of the cryolite powder is 280 mesh, and the diameter of the glass microsphere is 0.5 mm.

[0061] The manufacturing process steps of the present embodiment are as follows:

[0062] 1) Mixing: pass the weighed ceramic corundum abrasive and silicon carbide abrasive through a 150# sieve, pour into the mixing pot and mix for 10 minutes, add modified resin and mix for 30 minutes, add fillers such as glass beads and mix for 10 minutes , through a 46# sieve;

[0063] 2) Turn on the preheating device of the molding equipment, set the pressure head temperature to 100-120°C, an...

Embodiment 3

[0075] A needle-tip grinding wheel for grinding insulin for medical use, its raw material components and weight percentages are: 2500 mesh silicon carbide 60%, 1200 mesh ceramic corundum 14%, modified resin 12%, glass microspheres 9%, cryolite powder 2%, zinc oxide 3%. The raw material components and weight percentages of the modified resin are: 91% phenolic resin, 9% NBR, the particle size of the cryolite powder is 280 mesh, and the diameter of the glass microsphere is 0.5 mm.

[0076] The manufacturing process steps of embodiment 3 are as follows:

[0077] 1) Mixing: pass the weighed ceramic corundum abrasive and silicon carbide abrasive through a 150# sieve, pour into the mixing pot and mix for 10 minutes, add modified resin and mix for 30 minutes, add fillers such as glass beads and mix for 10 minutes , through a 46# sieve;

[0078] 2) Turn on the preheating device of the molding equipment, set the pressure head temperature to 100-120°C, and set the turntable temperature...

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Abstract

The invention particularly relates to a medical grinding wheel for grinding insulin needles and a manufacturing method thereof. The medical grinding wheel for grinding the insulin needles is characterized in that raw material components of the medical grinding wheel include, by weight, 60-65% of silicon carbide, 10-18% of micropowder-grade ceramic corundum, 8-12% of modified resin, 5-15% of glass beads, 1-4% of cryolite powder and 1-4% of zinc oxide, and the cryolite powder and the zinc oxide serve as filling agents. Micropowder-grade ceramic corundum abrasive materials can conduct self-sharpening at the nanoscale size during the grinding process, and micro grinding edges are exposed continuously, so that the cutting depth can be increased, and the grinding efficiency can be improved. Poor grinding faces caused by smoothed and blunted abrasive particles can be avoided through the micro grinding edges exposed continuously. During production of the grinding wheel, water pressure pads are adopted in the diameter direction and the thickness direction of the grinding wheel, and the balance performance and structure uniformity of the grinding wheel are improved by 50% more than the specified value of the national standard.

Description

technical field [0001] The invention belongs to the field of grinding wheels and manufacturing methods thereof, in particular to a medical grinding wheel for grinding insulin needles and a manufacturing method thereof. Background technique [0002] With the improvement of people's living standards, the number of people suffering from the "rich man's disease"-diabetes is increasing year by year, and the number of people using insulin injections is also increasing year by year. Each patient needs to inject 2-4 injections of insulin every day. Insulin injection treatment is a long-term process. , in order to reduce the pain of patients and bruises caused by long-term injection, high-quality needles are required, and the needles must meet the needs of patients in terms of thickness, length, sharpness, smoothness, and firmness. At present, the diameter of insulin needles used in medical treatment is only 0.23 mm, which is much thinner than ordinary injection needles (0.55-0.8 mm ...

Claims

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Application Information

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IPC IPC(8): B24D3/28B24D3/34B24D18/00
CPCB24D3/28B24D3/344B24D18/0009
Inventor 王珍易轶妹李威安伟
Owner QINGDAO SISA ABRASIVES CO LTD
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