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A low-cost universal saw blade and its preparation method

A general-purpose, low-cost technology, applied in the field of powder metallurgy materials, can solve the problems of low cobalt reserves and increase the cost of sawtooth, and achieve the effect of speeding up the alloying process, improving life and efficiency, and ensuring sharpness

Active Publication Date: 2022-06-24
QINGDAO SHINHAN DIAMOND INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cobalt reserves are small, and the use of cobalt-based binders will inevitably increase the cost of sawtooth

Method used

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  • A low-cost universal saw blade and its preparation method
  • A low-cost universal saw blade and its preparation method
  • A low-cost universal saw blade and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A low-cost general-purpose saw blade, which is sintered by mixing metal powder and diamond. The saw blade is divided into a working layer and a transition layer. The working layer is composed of powder raw materials with the following weights: 20 kg of iron, 25 kg of copper, tin 2kg, nickel 3kg, iron-copper alloy 47kg, ferrophosphorus 3kg, liquid paraffin 1kg, and diamond with 12.5% ​​of the powder raw material volume added; the transition layer is composed of the following powder raw materials by weight: 70 kg iron, Nickel 30kg.

[0035] Among them, the weight ratio of iron in the iron-copper alloy composition is 80%, and the rest is copper.

[0036] In this embodiment, the iron used is carbonyl iron powder.

Embodiment 2

[0038] A low-cost general-purpose saw blade, which is sintered by mixing metal powder and diamond. The saw blade is divided into a working layer and a transition layer. The working layer is composed of powder raw materials with the following weights: 15 kg of iron, 35 kg of copper, tin 5 kg of nickel, 3 kg of nickel, 45 kg of iron-copper alloy, 3 kg of phosphorus iron, 1 kg of liquid paraffin, and diamond with 15% of the powder raw material volume; the transition layer is composed of the following powder raw materials by weight: 60 kg of iron, Nickel 25kg.

[0039] Among them, the weight ratio of iron in the iron-copper alloy composition is 70%, and the rest is copper.

[0040] In this embodiment, the iron used is carbonyl iron powder.

Embodiment 3

[0042] A low-cost general-purpose saw blade, which is sintered by mixing metal powder and diamond. The saw blade is divided into a working layer and a transition layer. The working layer is composed of powder raw materials with the following weights: 25 kg of iron, 28 kg of copper, and 28 kg of tin. 1 kg of nickel, 5 kg of nickel, 50 kg of iron-copper alloy, 1 kg of phosphorus iron, 1 kg of liquid paraffin, and diamond with 10% of the powder raw material volume; the transition layer is composed of the following powder raw materials by weight: 80 kg of iron, Nickel 20 kg.

[0043] Among them, the weight ratio of iron in the iron-copper alloy composition is 70%, and the rest is copper.

[0044] In this embodiment, the iron used is carbonyl iron powder.

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Abstract

The invention discloses a low-cost general-purpose saw blade and a preparation method thereof. The saw blade is sintered by mixing metal powder and diamond. The saw blade is divided into a working layer and a transition layer. The working layer consists of the following parts by weight: Composition of several powder raw materials: 15-25 parts of iron, 25-35 parts of copper, 1-5 parts of tin, 1-5 parts of nickel, 45-50 parts of iron-copper alloy, 1-5 parts of ferrophosphorus, 1 part of liquid paraffin; In the working layer, 10-15% of the powder raw material volume is also added with diamond; the transition layer is composed of the following powder raw materials in parts by weight: 60-80 parts of iron and 10-30 parts of nickel. The saw blade prepared by the invention is low in cost, sharp in cutting, long in service life and wide in versatility, and is used for cutting concrete, granite, building materials and other materials, and has good market application prospects.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy materials, in particular to a low-cost universal saw blade and a preparation method thereof. Background technique [0002] Diamond circular saw blade cutting machines are generally semi-mechanized. In order to reduce the labor intensity of workers and improve production efficiency, the diamond circular saw blades are required to be sharp, efficient, and have a long service life to reduce costs. Laser-welded diamond saw blades use the micro-cutting action of diamond to cut rocks, and are mainly used in harsh dry cutting conditions. Diamond is inlaid and supported by the matrix, and the performance of the matrix plays a crucial role in the quality of the diamond saw blade. High-quality diamond saw blades require that the matrix not only has a good ability to encapsulate diamonds, but also has wear resistance that can match the diamond wear rate and rock abrasiveness. The matrix formula, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/02B22F5/00B22F3/10B22F1/10C22C38/16C22C38/08C22C9/00C22C26/00B28D1/04
CPCB22F7/02B22F5/00B22F3/1007C22C38/16C22C38/008C22C38/08C22C9/00C22C26/00B28D1/04B22F2005/001B22F1/10
Inventor 许基范王贵珍徐晓斌
Owner QINGDAO SHINHAN DIAMOND INDUSTRY CO LTD
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