Electroplated diamond bur and manufacturing method thereof

A technology of electroplating diamonds and manufacturing methods, which is applied in the direction of electrolytic coatings, dental tools, coatings, etc., can solve the problems of bur failure, diamond abrasive grain peeling, poor hardness and wear resistance, etc., and achieve good holding force and long service life , the effect of high hardness and wear resistance

Inactive Publication Date: 2011-04-13
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the pure nickel coating has a certain toughness, its hardness and wear resistance are poor, so the el

Method used

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  • Electroplated diamond bur and manufacturing method thereof
  • Electroplated diamond bur and manufacturing method thereof
  • Electroplated diamond bur and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0044] Embodiment 1: Preparation of nickel-titanium dental bur

[0045] The preparation of the nickel-titanium dental bur of the new structure is carried out as follows:

[0046] (1) The nickel-titanium alloy bur matrix was prepared by pulling corrosion method.

[0047] (2) Pretreatment of nickel-titanium alloy dental bur substrate

[0048] a. Insulate the non-plated part (handle and neck) of the bur with a heat shrinkable tube;

[0049] b. Put the insulated nickel-titanium alloy bur base into acetone solution, ultrasonically clean it for 15 minutes, and then rinse it with distilled water.

[0050] c. Put the base body of the bur into 80°C lye (containing NaOH 40g / l, NaOH 2 CO 3 30g / l, Na 3 PO 4 25g / l and Na 2 SiO 3 5g / l) for 20 minutes, then ultrasonically cleaned for 10 minutes;

[0051] d, washed with water until the pH is 7.0;

[0052] d. Ultrasonic cleaning in distilled water for 15 minutes;

[0053] e. Blow dry with a hair dryer for later use.

[0054] (3)...

specific Embodiment approach 2

[0077] Specific implementation mode 2: Characterization of nickel-titanium alloy substrate electroplated diamond bur

[0078] (1) Observation of the surface morphology of the bur

[0079] The surface morphology of the bur is shown in Fig. 2(a)-(c). It can be seen from the figure that the micro-diamond particles are evenly distributed on the surface of the nickel-titanium alloy bur, properly embedded, and well combined with the Ni-P / nano-diamond composite coating. Figure 2(c) is a backscattered electron image, in which black represents diamond and white represents Ni-P coating. It can be seen that throughout the composite coating, nano-diamonds are uniformly dispersed in Ni-P coating.

[0080] (2) Evaluation of cutting efficiency of bur

[0081] Made of machinable glass ceramics The rod is used as the cutting substrate to test the cutting performance, and its performance parameters are similar to human enamel. The test conditions are: the speed of the mobile phone is 340,0...

specific Embodiment approach 3

[0082] Specific implementation mode 3: Preparation of electroplated diamond bur with new structure of stainless steel substrate

[0083] The preparation of the new structural stainless steel substrate dental bur is carried out according to the following steps:

[0084] A stainless steel bur body, including a head, a neck and a shank, is prepared by machining. The structure of the multi-element multi-layer composite coating consists of the base pure nickel coating / nickel-phosphorus alloy sand coating / nickel-phosphorus-nano-diamond composite thickening coating. Before electroplating, the cleaned stainless steel bur substrate was treated with NaF and HNO 3 mixed solution (HNO 3 100g / L, NaF 4g / L) for ultrasonic etching activation.

[0085] Others are the same as the first embodiment.

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Abstract

The invention provides an electroplated diamond bur and a manufacturing method thereof. The electroplated diamond bur comprises a pure nickel base plated layer plated on a bur substrate, a sand plated layer plated on an alloy on the pure nickel base plated layer and a nano-diamond composite thickening plated layer plated on the sand plated layer on the alloy. The manufacturing method of the electroplated diamond bur comprises: the processing of the bur substrate, the treatment of the bur substrate and micron diamond and nanometer diamond powder before electroplating, preparation of a multi-component multi-layer composite plated layer at the head part of the bur and the heat treatment after electroplating. The electroplated diamond bur has higher hardness and wear resistance, the plated layers are difficult to wear during the using process, and the better holding force to diamond can be kept; on the one hand, the adoption of the heat treatment process after electroplating can eliminate internal pressure in the plated layers, on the other hand, the adoption of the heat treatment process can be simultaneously conductive to leading an interface between the bur substrate and the plated layer to form a diffusion layer, enhance the bonding force between the strengthening plated layer and the bur substrate, and greatly prolong the service life of the diamond bur.

Description

technical field [0001] The invention relates to a medical dental instrument, in particular to an electroplated diamond bur for grinding teeth. The invention also relates to a manufacturing process of an electroplated diamond bur. Background technique [0002] Diamond bur is one of the most commonly used instruments in dental treatment. It is made by adhering or electroplating diamond particles with a certain sharp angle according to a certain direction and spacing with the central axis of the bur as the center of the circle to make it have a certain cutting hard tissue. Capable burs. The diamond bur is mainly composed of three parts: the head, the neck and the handle. The handle is used to connect with the dental handpiece, the neck is the transition between the handle and the head, and the head is the main cutting part. The manufacturing methods of diamond burs can be roughly divided into electroplating method and powder metallurgy method, among which powder metallurgy me...

Claims

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Application Information

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IPC IPC(8): C25D15/00C25D5/00C25D3/12B23P5/00A61C3/025
Inventor 郑玉峰周惠敏李莉
Owner HARBIN ENG UNIV
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