Method for manufacturing porous polishing and grinding tool

A technology of tool and micropowder, which is applied in the field of preparation of porous nickel-based polishing tools, can solve the problems of difficult control of pore size and porosity, and achieve the effects of increased polishing removal rate, reduced polishing consumption, and stable and reliable quality

Inactive Publication Date: 2012-06-27
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pore ​​size and porosity are also difficult to control with other tool manufacturing methods

Method used

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  • Method for manufacturing porous polishing and grinding tool
  • Method for manufacturing porous polishing and grinding tool
  • Method for manufacturing porous polishing and grinding tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Disperse 20 grams of 1 mm micronized diamond in one liter of ethanol, add 1 gram of sodium dodecylbenzenesulfonate, and ultrasonically oscillate for 20 minutes at a vibration frequency of 40 kHz and a power of 120 W to obtain a stable suspension. Nickel foam sheet (such as figure 1 Shown) as the positive electrode, nickel sheet as the negative electrode, put into the above suspension. The distance between the positive and negative plates is 1cm, a voltage of 50V is applied between the plates, and the electrophoretic deposition time is 4 minutes. Put the nickel foam deposited with diamond micropowder into a vacuum oven at 70° C. for 10 minutes to dry. Using a constant temperature water bath, make the concentration of nickel chloride 90g per liter, sodium hypophosphite 30g, ammonium chloride 150g, the temperature of the electroless plating solution whose pH value is adjusted to 8 with ammonia hydrate is kept at 80°C, and the above-mentioned foamed nickel is suspended in ...

Embodiment 2

[0029] Disperse 50 grams (1 mm) of micropowder diamond in 1 liter of ethanol, add 0.8 g of sodium dodecylbenzenesulfonate, and ultrasonically oscillate for 30 minutes at a vibration frequency of 60 kHz and a power of 200 W to obtain a stable suspension. The foamed nickel sheet is used as the positive electrode, and the nickel sheet is used as the negative electrode, which are put into the suspension. The distance between the positive and negative plates is 1cm, a voltage of 10V is applied between the plates, and the electrophoretic deposition time is 1 minute. Put the nickel foam deposited with diamond micropowder into a vacuum oven at 70° C. for 10 minutes to dry. Utilize constant temperature water bath, make the concentration be that every liter contains 80g of nickel chloride, 40g of sodium hypophosphite, 140g of ammonium chloride, the temperature of the electroless plating solution whose pH value is adjusted to 7 with ammonium hydrate is kept at 85 ℃, and above-mentioned n...

Embodiment 3

[0032] Disperse 1 gram (1 mm) of micropowder diamond in 1 liter of ethanol, add 0.5 gram of sodium dodecylbenzenesulfonate, and ultrasonically oscillate for 10 minutes at a vibration frequency of 100 kHz and a power of 60 W to obtain a stable suspension. The foamed nickel sheet is used as the positive electrode, and the nickel sheet is used as the negative electrode, which are put into the suspension. The distance between the positive and negative plates is 1cm, a voltage of 100V is applied between the plates, and the electrophoretic deposition time is 10 minutes. Put the nickel foam deposited with diamond micropowder into a vacuum oven at 70° C. for 10 minutes to dry. Using a constant temperature water bath, make the concentration of nickel chloride 100g per liter, sodium hypophosphite 20g, ammonium chloride 160g, the temperature of the electroless plating solution whose pH value is adjusted to 7.5 with ammonia hydrate is kept at 75°C, and the above-mentioned foamed nickel is...

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Abstract

The invention discloses a method for manufacturing a porous polishing and grinding tool. The method mainly comprises the following steps of: performing ultrasonic oscillation on ethanol, micro-powder diamond and sodium dodecyl benzene sulfonate to obtain a suspension; placing a foaming nickel sheet as an anode and a nickel sheet as a cathode in the suspension, performing electrophoretic deposition for 1 to 10 minutes, and drying the foaming nickel on which the diamond micro-powde is deposited for 10 minutes at 70 DEG C; suspending the foaming nickel in chemical nickel plating liquid, 3 to 5 hours later, cleaning the foaming nickel sheet, drying the foaming nickel sheet in vacuum, annealing the foaming nickel sheet at 250 to 300 DEG C for 2 to 4 hours to eliminate stress, wherein the increased weight of the nickel layer is up to 80 to 100 percent; and repeating the processes of electrophoretic deposition, chemical nickel plating and annealing for 4 to 10 times, so that the increased weight of the nickel layer is up to 300 to 800 percent. The polishing and grinding tool manufactured by the method is uniform and controllable in porosity, and the probability of manufacturing the polishing and grinding tool with big pores and high porosity is provided; and a grinding material is uniformly distributed, so the utilization rate of the grinding material in a polishing and grinding process is improved.

Description

technical field [0001] The invention relates to a preparation method of a polishing tool, in particular to a preparation method of a porous nickel-based polishing tool. Background technique [0002] The grinding process occupies an important position in machining, and polishing tools are widely used in the grinding process. In the production process of polishing tools, it is necessary to control the strength of the abrasive, the density of the abrasive and the porosity of the abrasive. The pores in the grinding tool have the functions of chip removal and conduction of coolant. [0003] Micropowder abrasives are usually used as polishing materials in the following ways: (1) Free grinding and polishing materials: polishing paste is to put micronized diamonds into the dispersant and evenly disperse to obtain stable polishing materials. During the use of polishing paste, there are disadvantages such as low abrasive utilization rate, uneven polishing effect, and difficulty in p...

Claims

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Application Information

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IPC IPC(8): C23C28/00C25D13/02C23C18/36
Inventor 王艳辉黄浩臧建兵
Owner YANSHAN UNIV
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