Energy-saving and high-efficiency diamond saw blade and its preparation method

Abstract

The invention relates to an energy-saving efficient diamond sawblade, and belongs to the technical field of diamond sintering tools. The energy-saving efficient diamond sawblade comprises a circular steel base body, and a compound multi-layer diamond cutter head which is welded on the circular steel base body, wherein the compound multi-layer diamond cutter head comprises a plurality of diamond cutting layers, and each multi-layer diamond cutting layer comprises a blank body, and diamond particles which are embedded into the blank body; the concentration of the diamond particles in the intermediate diamond cutting layer is more than the concentration of the diamond particles at two sides; and the hardness of the blank body in the intermediate diamond cutting layer is less than the hardnessof the blanks in the diamond cutting layers at two sides. The energy-saving efficient diamond sawblade is applicable to processing of stones such as granites and marbles and cutting of a concrete pavement; the energy-saving efficient diamond sawblade has the characteristics of being quick to cut, high in cutting sharpness, and stable in performance; and moreover, the energy consumption can be decreased; in addition, the used diamond includes a little or excludes rare Co element and other components, so that the tool cost is decreased.

Description

technical field

[0001] The invention relates to the technical field of diamond sintered tools, more specifically, the invention relates to an energy-saving and high-efficiency diamond saw blade and a preparation method thereof. Background technique

[0002] Since the United States G.E. Company began to synthesize artificial diamonds in 1953, the types and specifications of diamond tools used by humans have been greatly developed. Since my country successfully synthesized artificial diamonds in 1963, my country's diamond tools have experienced from scratch, from small to large. , from decentralized to intensive, from product to industry development path. In terms of diamond tools for processing hard and brittle non-metallic materials, my country has become a major producer in the world. Diamond saw blades, diamond drill bits and diamond grinding wheels are the three main varieties of diamond tools. Among them, diamond saw blades are the leading products in diamond tools. Acco...

Examples

preparation example Construction

[0029] The preparation method of the energy-saving and high-efficiency diamond saw blade of the present invention is as follows:

[0030] 1. According to the requirements of the drawings, the steel plate is quenched and heat treated, tempered, laser cut into shape, tempered, plane ground, inner hole ground, outer circle ground, and deburred to make a circular steel substrate.

[0031] 2. Mix the carcass powder and diamond particles uniformly and cold-press to form and cold-press into a diamond blank in the middle and diamond blanks on both sides, and combine the diamond blank in the middle and the diamond blanks on both sides with the The metal blank layer forms a laminated structure according to the order and is hot-pressed and sintered, and the grinding wheel and abrasive belt are ground to make a composite multi-layer diamond cutter head. The temperature of hot-pressing sintering is 725-800 °C, and the pressure is 250-300kg / cm 2 , The holding time is 150-250 seconds.

[00...

Embodiment 1

[0039] Put 3.0kg of bronze powder, 0.3kg of tin powder, 0.01kg of graphite powder and 6.64kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.05kg of liquid paraffin and 0.35kg of diamond particles, continue After 3 hours of mixing, the powder is poured into the mold and cold-pressed to obtain the diamond blank layer in the middle;

[0040] Take 1.0kg of bronze powder, 0.3kg of tin powder and 8.65kg of pre-alloyed powder and mix them in the mixing tank for 30 minutes, then add 0.05kg of liquid paraffin and 0.30kg of diamond particles, and continue mixing for 3 hours. The powder is poured into the mold and cold-pressed to obtain the diamond blank layer on both sides;

[0041] Pour the bronze powder into the mold and cold press to form the metal blank layer;

[0042] The above-mentioned diamond blank layer and the metal binder blank layer are arranged at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal ...

Embodiment 2

[0045] Put 4.0kg of bronze powder, 0.4kg of tin powder, 0.01kg of graphite powder and 5.55kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.04kg of liquid paraffin and 0.30kg of diamond particles, continue After 3 hours of mixing, the powder is poured into the mold and cold-pressed to obtain the diamond blank layer in the middle;

[0046] Put 1.5kg of bronze powder, 0.5kg of tin powder and 7.95kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.05kg of liquid paraffin and 0.30kg of diamond particles, and continue mixing for 3 hours. The powder is poured into the mold and cold-pressed to obtain the diamond blank layer on both sides;

[0047] Pour the bronze powder into the mold and cold press to form the metal blank layer;

[0048] The above-mentioned diamond green layer and the metal binder green layer are arranged at intervals to form a laminated structure (3 layers of diamond green layers and 2 layers of metal bind...

technical field

[0001] The invention relates to the technical field of diamond sintered tools, more specifically, the invention relates to an energy-saving and high-efficiency diamond saw blade and a preparation method thereof. Background technique

[0002] Since the United States G.E. Company began to synthesize artificial diamonds in 1953, the types and specifications of diamond tools used by humans have been greatly developed. Since my country successfully synthesized artificial diamonds in 1963, my country's diamond tools have experienced from scratch, from small to large. , from decentralized to intensive, from product to industry development path. In terms of diamond tools for processing hard and brittle non-metallic materials, my country has become a major producer in the world. Diamond saw blades, diamond drill bits and diamond grinding wheels are the three main varieties of diamond tools. Among them, diamond saw blades are the leading products in diamond tools. Acco...

Examples

preparation example Construction

[0029] The preparation method of the energy-saving and high-efficiency diamond saw blade of the present invention is as follows:

[0030] 1. According to the requirements of the drawings, the steel plate is quenched and heat treated, tempered, laser cut into shape, tempered, plane ground, inner hole ground, outer circle ground, and deburred to make a circular steel substrate.

[0031] 2. Mix the carcass powder and diamond particles uniformly and cold-press to form and cold-press into a diamond blank in the middle and diamond blanks on both sides, and combine the diamond blank in the middle and the diamond blanks on both sides with the The metal blank layer forms a laminated structure according to the order and is hot-pressed and sintered, and the grinding wheel and abrasive belt are ground to make a composite multi-layer diamond cutter head. The temperature of hot-pressing sintering is 725-800 °C, and the pressure is 250-300kg / cm 2 , The holding time is 150-250 seconds.

[00...

Embodiment 1

[0039] Put 3.0kg of bronze powder, 0.3kg of tin powder, 0.01kg of graphite powder and 6.64kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.05kg of liquid paraffin and 0.35kg of diamond particles, continue After 3 hours of mixing, the powder is poured into the mold and cold-pressed to obtain the diamond blank layer in the middle;

[0040] Take 1.0kg of bronze powder, 0.3kg of tin powder and 8.65kg of pre-alloyed powder and mix them in the mixing tank for 30 minutes, then add 0.05kg of liquid paraffin and 0.30kg of diamond particles, and continue mixing for 3 hours. The powder is poured into the mold and cold-pressed to obtain the diamond blank layer on both sides;

[0041] Pour the bronze powder into the mold and cold press to form the metal blank layer;

[0042] The above-mentioned diamond blank layer and the metal binder blank layer are arranged at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal ...

Embodiment 2

[0045] Put 4.0kg of bronze powder, 0.4kg of tin powder, 0.01kg of graphite powder and 5.55kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.04kg of liquid paraffin and 0.30kg of diamond particles, continue After 3 hours of mixing, the powder is poured into the mold and cold-pressed to obtain the diamond blank layer in the middle;

[0046] Put 1.5kg of bronze powder, 0.5kg of tin powder and 7.95kg of pre-alloyed powder into the mixing tank and mix for 30 minutes, then add 0.05kg of liquid paraffin and 0.30kg of diamond particles, and continue mixing for 3 hours. The powder is poured into the mold and cold-pressed to obtain the diamond blank layer on both sides;

[0047] Pour the bronze powder into the mold and cold press to form the metal blank layer;

[0048] The above-mentioned diamond green layer and the metal binder green layer are arranged at intervals to form a laminated structure (3 layers of diamond green layers and 2 layers of metal bind...

Images