Diamond saw blade and preparation process thereof

A diamond saw blade and preparation technology, which is applied in the direction of manufacturing tools, stone processing equipment, stone processing tools, etc., can solve the problems of increased thermal stress between diamond and carcass, and diamond particle shedding, so as to reduce cutting resistance and thermal expansion Good coefficient and safety performance

Inactive Publication Date: 2020-08-25
江苏友美工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in temperature will cause the thermal stress between the diamond and the matrix to increase and cause the diamond particles to fall off prematurely

Method used

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  • Diamond saw blade and preparation process thereof
  • Diamond saw blade and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The preparation process of the present embodiment diamond saw blade is as follows:

[0048] 1. Substrate processing: The substrate is 30CrMo steel with a hardness of 34-38HRC.

[0049] According to the requirements of the drawings, the saw blade base of the required structure is prepared by machining;

[0050] 2. Preparation of diamond cutter head:

[0051] The composition of the raw materials used for the diamond cutter head is (parts by weight):

[0052] 38 parts of iron, 21 parts of nickel, 15 parts of cobalt, 12.5 parts of tungsten, 6.5 parts of chromium, 16.5 parts of molybdenum, 15 parts of tin, 2 parts of phosphorus alloy, 2 parts of liquid paraffin, 1.8 parts of diamond;

[0053] In the phosphorus alloy, the phosphorus content is 8wt.%, and the rest is iron; the particle size of the diamond is 50 / 60 mesh, and the compressive strength of the diamond is 25-40kg.

[0054] The diamond cutter head is prepared by hot pressing sintering technology: the raw materials...

Embodiment 2

[0074] The difference from Example 1 is:

[0075] The composition of the raw materials used for the diamond cutter head is (parts by weight):

[0076] 35.5 parts of iron, 20.5 parts of nickel, 15.8 parts of cobalt, 13.25 parts of tungsten, 8 parts of chromium, 17.2 parts of molybdenum, 14.4 parts of tin, 2.05 parts of phosphorus alloy, 2 parts of liquid paraffin, and 1.8 parts of diamond;

[0077] The hardness (HRB) of the prepared diamond tip is about 108.

[0078] The diamond saw blade weld seam prepared in this example has no macroscopic defects such as holes, cracks, and incomplete penetration. The bending strength is 605MPa, the hardness is 98HRB, and the impact toughness is 5.02J / cm2.

[0079] The maximum deformation of the substrate of the diamond saw blade after welding is 0.06mm, and the minimum stress deformation is 0mm. It shows that the residual stress between the welding sheet cutter head and the matrix prepared in this example is small, and the matrix has high...

Embodiment 3

[0081] The difference from Example 1 is:

[0082] The composition of the raw materials used for the diamond cutter head is (parts by weight):

[0083] 40 parts of iron, 22 parts of nickel, 18 parts of cobalt, 12 parts of tungsten, 6.8 parts of chromium, 16.4 parts of molybdenum, 14.5 parts of tin, 2 parts of phosphorus alloy, 2 parts of liquid paraffin, 22.0 parts of diamond;

[0084] The hardness (HRB) of the prepared diamond tip is about 108.

[0085] The diamond saw blade weld seam prepared in this example has no macroscopic defects such as holes, cracks, and incomplete penetration. The bending strength is 609MPa, the hardness is 100.2HRB, and the impact toughness is 5.15J / cm2.

[0086] The maximum deformation of the substrate of the diamond saw blade after welding is 0.05mm, and the minimum stress deformation is 0mm. It shows that the residual stress between the welding sheet cutter head and the matrix prepared in this example is small, and the matrix has high strength ...

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Abstract

The invention discloses a diamond saw blade and a preparation process thereof, and belongs to the technical field of diamond machining tools and welding. The diamond saw blade comprises a saw blade base body and diamond tool bits, wherein a gap is formed between every two adjacent diamond tool bits, and a notch is formed between every two adjacent diamond tool bits; and the notches extend into theplane of the base body to form a plurality of chip grooves used for discharging cutting waste. Meanwhile, the holding force between a matrix material and diamond particles is improved by optimizing the composition of raw material powder of the tool bits and the preparation process, and the binding force between the tool bits and the base body is improved by optimizing the laser welding process, so that the operation safety coefficient is improved. According to the diamond saw blade, the energy consumption can be reduced, and the cost can be saved.

Description

technical field [0001] The invention relates to the technical field of diamond processing tools and welding, in particular to a diamond saw blade and a preparation process thereof. Background technique [0002] Under the background of today's rapid economic development, low-carbon environmental protection has become the general trend. In the process of pouring concrete pavement and engineering construction, with the increase of labor costs, high-efficiency and energy-saving tools are bound to be favored by users. [0003] Infrastructure construction is inseparable from diamond saw blades. Diamond saw blades are a cutting tool widely used in the cutting of hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc. The cutting machine equipped with diamond saw blades can cut concrete pavement at high speed. When waiting for material, the saw blade performs high-speed rotating cutting. The diamond saw blade is mainly composed of two parts: the sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B22F1/00B22F7/08B28D1/12C22C26/00C22C30/00
CPCB22F5/00B22F7/062C22C26/00C22C30/00B28D1/121B22F2005/001B22F1/102
Inventor 万益俊
Owner 江苏友美工具有限公司
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