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Hard alloy circular saw web

A cemented carbide, circular saw blade technology, applied in circular saws, metal sawing equipment, saw blades, etc., can solve the problems of short service life, more heat generation, cumbersome processing procedures, etc., to achieve smooth cutting surface, improve The effect of processing efficiency and long service life

Inactive Publication Date: 2017-10-20
宁波妙力斯五金工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the actual application process, due to the complex structure of the saw blade itself and the cumbersome processing procedures, the cutting noise is relatively large during use, and a lot of heat is generated during the cutting process, which is not easy to dissipate heat.
And because the sharpness of the sawtooth needs to be kept during use, it needs to be continuously polished, which will shorten the service life of the saw blade, and the service life is not long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Mixing: Weigh the cemented carbide material according to the parts by weight described in Example 1 in Table 1 and add it to the ball mill, wherein the grain size of the tungsten carbide powder is 0.3 μm, and the cobalt binder contains 2% Mo and 0.2% organic bentonite, and add 200ml of ethanol to wet grind until the powder particle size is 1 μm to obtain a mixed slurry, after the mixed slurry is filtered, dry at 120°C for 40min to obtain a mixture;

[0051] Compression molding: under the condition of 40MPa, the mixture and 0.02% molding agent are put into the sawtooth mold and pressed to obtain the saw blade sawtooth blank, wherein the molding agent is polyethylene glycol;

[0052] Sintering: Quenching the saw blade substrate blank and the saw blade sawtooth blank, the quenching temperature is 820°C, and the quenching time is 5 minutes; Tempering is carried out at 380°C, and the tempering time is 5 hours. After the tempering is completed, the saw blade matrix and saw bl...

Embodiment 2

[0058] Mixing: Weigh the cemented carbide material according to the parts by weight described in Example 2 in Table 1 and add it to the ball mill, wherein the grain size of the tungsten carbide powder is 0.32 μm, and the cobalt binder contains 2.1% Mo and 0.21% organic Bentonite, and add 210ml of ethanol to wet grind until the powder particle size is 1.2μm to obtain a mixed slurry, after filtering the mixed slurry, dry it at 122°C for 41min to obtain a mixture;

[0059] Compression molding: under the condition of 42MPa, the mixture and 0.022% molding agent are dropped into the sawtooth mold and pressed to obtain the saw blade sawtooth blank, wherein the molding agent is polyethylene glycol;

[0060] Sintering: Quenching the saw blade base blank and the saw tooth blank, the quenching temperature is 823°C, and the quenching time is 5.5 minutes; after quenching, sintering is carried out in a vacuum, the sintering temperature is 1520°C, after the sintering is completed, the tempera...

Embodiment 3

[0066] Mixing: take the cemented carbide material according to the parts by weight described in Example 3 in Table 1 and add it to the ball mill, wherein the grain size of the tungsten carbide powder is 0.34 μm, and the cobalt binder contains 2.2% Mo and 0.22% organic bentonite, and add 220ml of ethanol to wet grind until the powder particle size is 1.4μm to obtain a mixed slurry, after the mixed slurry is filtered, dry at 124°C for 42min to obtain a mixture;

[0067] Compression molding: under the condition of 44MPa, the mixture and 0.024% molding agent are dropped into the sawtooth mold and compressed to obtain the saw blade sawtooth blank, wherein the molding agent is polyethylene glycol;

[0068] Sintering: Quenching the saw blade base blank and saw blade sawtooth blank, the quenching temperature is 826°C, and the quenching time is 6 minutes; Tempering is carried out under the condition of 388°C, and the tempering time is 5.4h. After the tempering is completed, the saw bla...

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Abstract

The invention relates to a hard alloy circular saw web, in particular to an FWF type hard alloy circular saw web, and belongs to the field of hard alloy materials. The FWF type hard alloy circular saw web is made of hard alloy material; and the hard alloy material comprises a hard alloy base and a coating and is prepared from the following components in parts by weight: 75-80 parts of tungsten carbide powder, 5-10 parts of a cobalt binder, 0.5-1 part of GdLa, 0.2-0.3 part of Ru and 0.5-0.8 part of a lubricant. The FWF type hard alloy circular saw web is made of the hard alloy material to ensure that the hard alloy circular saw web has high cutting performance and is high in cutting strength, excellent in tenacity and long in service life.

Description

technical field [0001] The invention relates to a cemented carbide circular saw blade, in particular to a FWF type cemented carbide circular saw blade, which belongs to the field of cemented carbide materials. technical background [0002] A saw blade is a general term for thin, circular knives used to cut solid materials. Saw blades can be divided into: diamond saw blades for stone cutting; high-speed steel saw blades for metal material cutting; saw blades for solid wood, furniture, wood-based panels, aluminum alloys, aluminum profiles, radiators, plastics, plastic steel, etc. Carbide circular saw blades. [0003] Tungsten carbide saw blades, as cemented carbide cutting tools, are specially made for cutting and grooving metal materials. They are the most commonly used cutting tools for wood product processing. The quality of cemented carbide circular saw blades is closely related to the quality of processed products. . Tungsten carbide circular saw blades include multipl...

Claims

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Application Information

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IPC IPC(8): B28D1/04B27B33/08B23D61/02
CPCB23D61/02B27B33/08B28D1/04
Inventor 王成国
Owner 宁波妙力斯五金工具有限公司
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