Sanitary dental bur and manufacturing method thereof
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A technology of dentistry and burs, which is applied in dentistry, dental tools, medical science, etc., can solve the problems of high mobility, many dental outpatients, high bur usage rate, and high turnover rate, so as to reduce injuries, reduce labor intensity, The effect of fast cutting speed
Inactive Publication Date: 2018-06-15
皮勇
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Problems solved by technology
[0014] Dental clinics have many patients and high mobility, and the utilization rate and turnover rate of burs are high
Method used
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Embodiment 1
[0057] The raw material formula of tungsten steel material is as follows:
[0058] 50 kg of cobalt;
[0059] Chromium dicarbide 1.5 kg;
[0060] 1 kg of vanadium carbide;
[0061] 1 kg of tantalum carbide;
[0062] Titanium nitride 1 kg;
[0063] Silicon nitride 1 kg;
[0064] Tungsten carbide 444.5 kg.
[0065] figure 2 It is the production flow chart of the base material of sanitary dental bur.
[0066] (1) Place the above-mentioned tungsten steel material raw material in a ball mill, add 150 liters of anhydrous ethanol, use anhydrous ethanol as a grinding medium, and wet-mill and mix for 48 hours.
[0067] (2) Put it into a vacuum dryer, then add 50 kg of Kunlun brand No. 56 fully refined granular paraffin, and dry it for 5 hours while stirring.
[0068] (3) Low-temperature sintering: The sieved material is sent into the mold, pressed into a preliminary blank, the pressing pressure is 0.8MPa, and then sent into the sintering furnace, the pressure is set to 5MPa, th...
Embodiment 2
[0072] The raw material formula of tungsten steel material is as follows:
[0073] 50 kg of cobalt;
[0074] Chromium dicarbide 1.5 kg;
[0075] 2 kg of vanadium carbide;
[0076] Titanium nitride 1 kg;
[0077] Silicon nitride 1 kg;
[0078] Tungsten carbide 444.5 kg.
[0079] The preparation method is exactly the same as that of Example 1.
Embodiment 3
[0081] The raw material formula of tungsten steel material is as follows:
[0082] 50 kg of cobalt;
[0083] Chromium dicarbide 1.5 kg;
[0084] 2 kg of tantalum carbide;
[0085] Titanium nitride 1 kg;
[0086] Silicon nitride 1 kg;
[0087] Tungsten carbide 444.5 kg.
[0088] The preparation method is exactly the same as that of Example 1.
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Abstract
The invention discloses a sanitary dental bur and a manufacturing method of the sanitary dental bur. The sanitary dental bur is made of a tungsten steel material, and the tungsten steel material is prepared from, by weight percentage, 8-12% of cobalt, 0.2-0.4% of cromium carbide, 0.3-0.5% of vanadium carbide and / or tantalum carbide and the balance tungsten carbide. The sanitary dental bur has thehigh rockwell hardness and bending strength, the surface hardness of the bur is high, the concentricity is extremely high, no oscillating exists, the rotation is stable, the cutting speed is high, thegenerated heat is small, the damage to the dental pulp and tooth tissue is lowered, the labor intensity of dentists is lowered, and the comfort and satisfaction of patients are improved effectively.The sanitary dental bur cuts a tooth body, and after the preparation of a hole shape, the surface of the tooth body is smooth without scratches. In addition, the sanitary dental bur is low in production cost and suitable for effectively promoting the popularization of the idea of one person and one special bur in outpatient clinics of the dentists, and the cross-infection problem is effectively solved.
Description
technical field [0001] The invention relates to a bur and a preparation method thereof, in particular to a hygienic dental bur and a preparation method thereof. Background technique [0002] Dentistry, one of the classifications of medical disciplines, is generally incorporated into the department of stomatology in large hospitals. Dentistry mainly treats dental and periodontal related diseases. [0003] Dental caries, commonly known as tooth decay and tooth decay, is a bacterial disease that can lead to pulpitis and apical periodontitis, and can even cause inflammation of the alveolar bone and jawbone. If not treated in time, the lesions will continue to develop, forming cavities, and eventually the crown is completely destroyed and disappeared, and the final result of its development is the loss of teeth. Caries is characterized by high incidence and wide distribution. It is the main common disease of the oral cavity and one of the most common diseases of human beings. ...
Claims
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Application Information
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