Circular diamond saw blade bit and manufacturing method thereof

A technology of circular saw blades and diamonds, which is applied in the field of diamond circular saw blades and its preparation, can solve the problems of difficult control of the shape retention of the cutter head, difficulty in uniform size shrinkage, low hardness and low density, and avoid graphite Die loss, easy industrialization promotion, and the effect of improving sinterability and deformability

Active Publication Date: 2015-11-11
ADVANCED TECHNOLOGY & MATERIALS CO LTD
View PDF3 Cites 49 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly because there is no external pressure as the reaction driving force, the shape retention of the cutter head is usually difficult to control during the free sintering process, and it is difficult to achieve uniform size shrinkage
At the same time, the hardness and density of the carcass of the cutter head obtained by free sintering are lower than those prepared by hot pressing sintering process, and its performance and service life are lower than those of hot pressing sintering cutter head during use, so it is usually only used for low-end integral sintered saws In the film, there are few reports on the application of high-grade circular saw blades

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Circular diamond saw blade bit and manufacturing method thereof
  • Circular diamond saw blade bit and manufacturing method thereof
  • Circular diamond saw blade bit and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of cutter head of the present invention adopts free sintering method, specifically as follows:

[0037] Mixing step: mix the above-mentioned carcass powder (preferably the above-mentioned pre-alloyed carcass powder) and diamond particles for 0.5-1 hour to make them uniform, and then add an appropriate amount of granulating agent to continue mixing for 0.5-1 hour to make them uniform, wherein the diamond particles The mass ratio of the mass of the matrix powder to the total mass of the diamond particles is 1.5-4%, and the ratio of the mass of the granulating agent to the total mass of the matrix powder and the diamond particles is 0.1:99.9~0.3:99.7. The total time is 1-2 hours; the granulating agent can be a commonly used granulating agent in this field, such as liquid paraffin.

[0038] Cold pressing forming step: according to the preset amount of powder, put the mixed material obtained in the mixing step into the cavity of the assembled pressing mo...

Embodiment 1

[0044] In this example, the composition of the carcass powder F-01 is shown in Table 1. The carcass powder F-01 is a pre-alloyed carcass powder prepared by the water atomization method commonly used in this field. The components in the carcass powder The purity of each is more than 99.5%, and its basic properties are shown in Table 2.

[0045] Table 1F-01 Composition and content of powder, wt%

[0046] Powder code

Cu

Ni

sn

co

Ti

Cr

P

Al

Fe

F-01

20

2

2

3

1

1

2

1

Remain

[0047] Table 2F-01 Basic properties of powder

[0048]

[0049] The median diameter D50 of the added diamond particles is 40 μm, accounting for 2% of the mass percentage of the diamond cutter head.

[0050] The preparation method of the diamond circular saw blade cutter head in the present embodiment is as follows:

[0051] Mixing step: mix the above matrix powder and diamond particles for 1 hour to make them u...

Embodiment 2

[0059] In this example, the composition of the carcass powder F-02 is shown in Table 4. The carcass powder F-02 is a pre-alloyed carcass powder prepared by the water atomization method commonly used in this field. The components in the carcass powder The purity of each is more than 99.5%, and its basic properties are shown in Table 5.

[0060] Table 4F-02 Composition and content of powder, wt%

[0061] Powder code

Cu

Ni

sn

co

mn

Si

Fe

[0062] F-02

30

8

3

5

2

1

Remain

[0063] Table 5F-02 Basic properties of powder

[0064]

[0065] The median diameter D50 of the added diamond particles is 35 μm, accounting for 1.5% of the mass percentage of the diamond cutter head.

[0066] The preparation method of the diamond circular saw blade cutter head in the present embodiment is as follows:

[0067] Mixing step: mix the above matrix powder and diamond particles for 45 minutes to make them u...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a circular diamond saw blade bit and a manufacturing method thereof. The circular diamond saw blade bit is made of diamond particles and matrix powder used for consolidation of the diamond particles. The matrix powder comprises, by mass percent, 40%-80% of Fe, 15%-30% of Cu, 0%-10% of Ni, 2%-8% of Sn, 0%-10% of Co, 0%-5% of Me and the balance inevitable impurities. Me is at least one of Mn, Ti, Si, Cr, P and Al. The manufacturing method comprises the steps of mixing raw materials, conducting cold-press molding and free sintering. The manufacturing method is simple and can effectively avoid the loss of a graphite mould and reduce manufacturing cost. Meanwhile, a volume production requirement can be met, and blade bits in complicated shapes can be produced; production efficiency is prolonged, and the service life of the tool is similar to that of a tool manufactured through a hot-press sintering method; the purpose that high-quality diamond cutting tools are produced under the condition of low cost can be achieved; and the circular diamond saw blade bit and a manufacturing method thereof are easy to popularize in an industrialized manner.

Description

technical field [0001] The invention relates to the field of superhard materials, in particular to a diamond circular saw blade head and a preparation method thereof. Background technique [0002] The vast majority of diamond tools are impregnated tools that are formed by mixing binders with synthetic diamond particles, forming and sintering. The diamond particles mainly play the role of the cutting edge, and the carcass binder mainly plays the role of fixing the diamond particles, so as to fully and efficiently play the cutting and grinding functions of the diamond particles, and with its superior cutting, grinding and wear-resistant properties It is widely used in stone, ceramics, concrete and other industries. [0003] The impregnated diamond segment is usually directly mixed with diamond particles and carcass binder according to a certain mass ratio and other parameters, and then hot-pressed, or cold-pressed and then hot-pressed. In short, most of the impregnated Type ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C38/16C22C33/02C22C1/05C22C1/10
Inventor 沈翔张健琼罗锡裕况春江
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap