Preparation method of metallic bond tool bit and diamond saw web comprising metallic bond tool bit

A metal bond and diamond technology, applied in the field of diamond tools, can solve problems such as insufficient cutting edge, liquid phase loss, and high-quality cutting, and achieve the effects of improving cutting sharpness, inhibiting liquid phase outflow, and increasing sintering temperature

Active Publication Date: 2018-06-01
FUJIAN QUANZHOU HUAZUAN DIAMOND TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Slicing in marble is mostly used for plate cutting, which requires high cutting efficiency and straightness of cutting edge, and marble shows different hardness and wear resistance due to different formation areas and components. When using diamond saw blades to process There is a big difference in the effect and efficiency of cutting; for example, when cutting marble with high hardness, a metal bond cutter head with low wear resistance is required, while a metal bond cutter head with appropriate wear resistance has a metal bond Usually, the holding force of the diamond is not enough, the diamond is easy to break and fall off, and it is impossible to cut the stone efficiently and with high quality; and when the metal bond of the metal bond cutter head has an increased holding force on the diamond, the abrasiveness of the carcass of the cutter head is too high. Strong, when cutting soft marble, the carcass has high wear resistance and insufficient cutting edge, and it is impossible to cut soft marble efficiently and with high quality; therefore, the production requirements of diamond saw blades for marble cutting It is very high, how to make the metal bond head of the diamond saw blade effectively suitable for a variety of stone cutting is the main problem that needs to be solved at present
[0003] Secondly, at present, the sintering range of the metal bond cutter head is narrow (about 10 degrees), and when the sintering temperature is low, the liquid phase is less, and it is easy to produce sandwiches and edge-middle layer detachment. If the temperature is raised, the liquid phase loss is easy to occur , which is not conducive to the density of the binder and the post-treatment of the cutter head; and the welding temperature range of the metal bond cutter head is narrow. During welding, due to the cooling and heat dissipation and the unstable voltage, there are differences in the welding strength and poor structural stability. Low sex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a metal bond cutter head, comprising the steps of:

[0025] Step (1) Metal powder preparation: choose metal powder containing 400 mesh CuSn 15 Water atomized pre-alloyed powder 、 AlSi finer than 1000 mesh 10 Gas atomized pre-alloyed powder, CuCe finer than 1000 mesh 20 Gas atomized pre-alloyed powder; the mass fraction ratio of the components in the metal powder is: 85% CuSn 15 Water atomized pre-alloyed powder, 5% AlSi 10 Gas atomized pre-alloyed powder, 10% CuCe 20 Gas atomized pre-alloyed powder;

[0026] Step (2) Diamond pretreatment: choose diamond, the selected diamond includes 40 / 50 particle size diamond, 50 / 60 particle size diamond, 60 / 70 particle size diamond, and 40 / 50 particle size diamond, 50 / 60 particle size diamond , The mass ratio of the diamond of 60 / 70 particle size is 3:4:3; Carry out vacuum titanium plating to the selected diamond, obtain titanium-coated diamond; Mix titanium-coated diamond with 800 mesh cobalt powders of ...

Embodiment 2

[0031] The preparation method of the metal bond cutter head of embodiment 2 is basically the same as the preparation method of embodiment 1, the difference is:

[0032] Metal powder comprises 82% CuSn in the step (1) of embodiment 2 15 Water atomized pre-alloyed powder, 3% AlSi 10 Atomized powder, 15% CuCe 20 Gas atomized pre-alloyed powder;

[0033] The diamonds selected in step (2) of Example 2 include diamonds with a particle size of 60 / 70 and diamonds with a particle size of 70 / 80, and the mass ratio of diamonds with a particle size of 60 / 70 and diamonds with a particle size of 70 / 80 is 6:4.

[0034] In step (3) of Example 2, the metal powder obtained in step (1) and the diamond obtained in step (2) were uniformly mixed to obtain a green compact mixture, wherein the volume fraction of diamond was 4.7%.

Embodiment 3

[0036] The preparation method of the metal bond cutter head of embodiment 3 is basically the same as the preparation method of embodiment 1, the difference is:

[0037] Metal powder comprises 80% CuSn in the step (1) of embodiment 3 15 Water atomized pre-alloyed powder, 3% AlSi 10 Atomized powder, 17% CuCe 20 Gas atomized pre-alloyed powder;

[0038] The diamond selected in the step (2) of embodiment 3 comprises the diamond of 60 / 70 grain size, the diamond of 70 / 80 grain size, the diamond of 80 / 100 grain size, and the diamond of 60 / 70 grain size, the diamond of 70 / 80 grain size, 80 The mass ratio of diamond / 100 grain size is 5:3:1.

[0039] In step (3) of Example 3, the metal powder obtained in step (1) and the diamond obtained in step (2) were uniformly mixed to obtain a green compact mixture, wherein the volume fraction of diamond was 4%.

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Abstract

The invention relates to diamond tools and provides a preparation method of a metallic bond tool bit and a diamond saw web comprising the metallic bond tool bit. The metallic bond tool bit prepared through the method is high in diamond mechanically holding force and acquires appropriate wearing resistance to meet the market development requirements and the cutting requirements of various marble slabs; meanwhile, the sintering temperature range of the metallic bond tool can be expanded, adverse effects caused by sintering conditions such as non-uniform thermal conduction and edge-center temperature difference of graphite molds can be reduced, the sintering temperature can be increased, the material wastage rate can be reduced, and the quality of sintered tool bits can be improved; the welding tolerance temperature can be increased, the selecting range of welding materials can be expanded, and swelling and foaming of matrixes during secondary welding heating of the tool bit can be avoided; besides, the preparation method of the metallic bond tool bit is easy to implement, applicable of large-scale production and high in practicality.

Description

technical field [0001] The invention relates to a diamond tool, in particular to a method for preparing a metal bond cutter head and a diamond circular saw blade with the metal bond cutter head. Background technique [0002] Slicing in marble is mostly used for plate cutting, which requires high cutting efficiency and straightness of cutting edge, and marble shows different hardness and wear resistance due to different formation areas and components. When using diamond saw blades to process There is a big difference in the effect and efficiency of cutting; for example, when cutting marble with high hardness, a metal bond cutter head with low wear resistance is required, while a metal bond cutter head with appropriate wear resistance has a metal bond Usually, the holding force of the diamond is not enough, the diamond is easy to break and fall off, and it is impossible to cut the stone efficiently and with high quality; and when the metal bond of the metal bond cutter head ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B28D1/04
CPCB22F1/0003B22F5/00B28D1/04B22F2005/001B22F2998/10B22F1/17B22F2003/145B22F9/082
Inventor 傅师铭骆灿彬陈村棋吴白纯宁振东
Owner FUJIAN QUANZHOU HUAZUAN DIAMOND TOOLS CO LTD
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