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A diamond and wire saw technology, which is applied to the sanding field of diamond wire saws, can solve the problems of easy deviation and other problems.
Active Publication Date: 2011-12-07
NANJING SANCHAO ADVANCED MATERIALS
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[0006] Third: Since the wire is buried in the sand pile, and the sand pile is completely immersed in the plating solution, the pressure on the upper and lower surfaces of the wire is different, and the friction force on the sand on
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Embodiment 1
[0024] 1) Preparation of diamond electroplating solution:
[0025] Weigh 10,000 grams of nickel sulfate, 10,000 grams of nickel chloride, 1,000 grams of cobalt sulfate, and 5,000 grams of boric acid. The liquid reaches 100L, and 2000 grams of diamonds are added thereto, stirred and heated to 45 degrees to complete the preparation of the electroplating liquid. Each liter of prepared electroplating solution contains: 20 grams of diamond, 100 grams of NiSO 4 , 100 grams of NiCl 2 , 10 g CoSO 4 , 50 g H 2 BO 3 .
[0026] 2) Place the electroplating solution 4 in the sand loading tower 1 made of PVC, and keep the temperature of the electroplating solution 4 at 45 degrees during the sand loading process. In this embodiment, the upper sand tower 1 is cylindrical in shape with an inner diameter of 100 mm, placed vertically, and four Ni anodes 2 are evenly placed on the inner wall thereof.
[0027] 3) Insert the bare wire 3 with a diameter of 0.25mm from the bottom of the up...
Embodiment 2
[0030] 2) Preparation of diamond electroplating solution:
[0031] Weigh 24,000 grams of nickel sulfate, 4,000 grams of nickel chloride, 4,000 grams of cobalt sulfate, and 6,000 grams of boric acid. When the liquid reaches 100L, add 1000 grams of diamond to it, stir and heat to 42 degrees to complete the preparation of the electroplating solution. Each liter of prepared electroplating solution contains: 10 grams of diamond, 240 grams of NiSO 4 , 40 grams of NiCl 2 , 40 g CoSO 4 , 60 g H 2 BO 3 .
[0032] 2) Place the electroplating solution 4 in the sand loading tower 1 made of PVC, and keep the temperature of the electroplating solution 4 at 45 degrees during the sand loading process. In this embodiment, the upper sand tower 1 is in the shape of a regular octagon, and the distance between the two sides of the inner cavity is 100mm, and it is placed vertically, and 8 Ni anodes 2 are evenly placed on the inner wall.
[0033] 3) Insert the metal bare wire 3 with a diamete...
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Abstract
The invention relates to a sand feeding method for a diamond wire saw. The method comprises the following steps of: (1) preparing a diamond electroplating solution, wherein each litre of the electroplating solution comprises 10-20g of diamond, 100-240g of NiSO4, 40-100g of NiCl2, 10-50g of CoSO4 and 40-80g of H2BO3; (2) adding the electroplating solution to a sand feeding tower, wherein the sand feeding tower is in the shape of a column or polygon and is arranged vertically, and 2 to 8 Ni anodes are uniformly arranged on the inner wall of the sand feeding tower; and (3) making a bare metal wire penetrate into the bottom of the sand feeding tower and out of the tower top at a speed of 2-8 m/min; by adopting the bare metal wire as the cathode and Ni as the anode during the penetration of the bare metal wire, applying DC (Direct current) and plating diamond on the bare metal wire. The diamonds on the diamond wire saw prepared by the invention are uniformly distributed and are not accumulated.
Description
technical field [0001] The invention relates to a sanding method for a diamond wire saw, that is, a method for fixing diamonds on bare metal wires. Background technique [0002] With the demand for cutting silicon materials for solar photovoltaics and LED sapphire substrates, the use of diamond wire saws has increased significantly. At present, the domestic market for diamond wire saws is almost completely occupied by foreign wire saw manufacturers. Domestic companies have many key technologies that have not yet broken through. . [0003] The conventional manufacturing method of diamond wire saw is to release the bare wire from a pay-off wheel, and go through processes such as degreasing, rust removal, pre-nickel plating, sanding, nickel plating thickening, cleaning, drying, and wire take-up. The whole wire moves in the horizontal direction, especially the sanding process often adopts the buried sand method, that is, the bare wire passes through a "pile" of diamonds. During...
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