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Rare earth phosphorus-rich iron-based pre-alloy binding agent

A bonding agent and pre-alloying technology, applied in the field of synthetic diamond saw blade bonding agents, can solve the problems of restricting the development and improvement of diamond saw blade bonding agents, lack of new elements, etc., to enhance self-sharpening, reduce sintering costs, and improve alloying. degree of effect

Inactive Publication Date: 2014-05-21
湖北昌利超硬材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main components of diamond saw blade bonds are still copper, iron, tin, nickel and cobalt, which lack the introduction of new elements, which limits the development and improvement of diamond saw blade bonds.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, get phosphorus 22%, iron 69%, rare earth 3%, zinc 6% rare earth phosphorus-rich iron-based pre-alloy powder 20%, copper powder 26%, reduced iron powder 46%, tin powder 4%, nickel Put 3% powder into the mixing tank, mix for 0.5 hours, add 1% paraffin wax and diamond, and continue mixing for 2.5 hours. After the mixture is fully mixed, take the corresponding weight according to the operation requirements, and put it into the corresponding steel mold for cold pressing. Press the cold-pressed blank that meets the requirements, and then carry out hot-press sintering at 700-740 degrees Celsius to become a diamond blade, and weld it with the substrate to make a diamond saw blade.

Embodiment 2

[0013] Example 2, get phosphorus 22%, iron 69%, rare earth 3%, zinc 6% rare earth phosphorus-rich iron-based pre-alloy powder 26%, copper powder 26%, reduced iron powder 39%, tin powder 5%, nickel Put 3% powder into the mixing tank, mix for 0.5 hours, add 1% paraffin wax and diamond, and continue mixing for 2.5 hours. After the mixture is fully mixed, take the corresponding weight according to the operation requirements, and put it into the corresponding steel mold for cold pressing. Press the cold-pressed blank that meets the requirements, and then carry out hot-press sintering at 700-740 degrees Celsius to become a diamond blade, and weld it with the substrate to make a diamond saw blade.

Embodiment 3

[0014] Example 3, get phosphorus 22%, iron 69%, rare earth 3%, zinc 6% rare earth phosphorus-rich iron-based pre-alloy powder 30%, copper powder 30%, reduced iron powder 30%, tin powder 5%, nickel Powder 4%, put into the mixing tank, mix for 0.5 hours, add paraffin wax 1% and diamond, continue to mix for 2.5 hours, after mixing fully, weigh the corresponding weight according to the operation requirements, put it into the corresponding steel mold and cold press, Press the cold-pressed blank that meets the requirements, and then carry out hot-press sintering at 700-740 degrees Celsius to become a diamond blade, and weld it with the substrate to make a diamond saw blade.

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PUM

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Abstract

The invention discloses a rare earth phosphorus-rich iron-based pre-alloy binding agent and belongs to powder metallurgy and the rare earth phosphorus-rich iron-based pre-alloy binding agent is used for manufacturing diamond saw blades. The rare earth phosphorus-rich iron-based pre-alloy binding agent consists of the following components in percentage by weight: 20-30% of rare earth phosphorus-rich iron-based pre-alloy powder, 20-30% of copper powder, 30-50% of reducing iron powder, 4-6% of tin powder, 1-5% of nickel powder and 1-2% of paraffin, wherein the rare earth phosphorus-rich iron-based pre-alloy powder consists of 22% of phosphorus, 69% of iron, 3% of rare earth and 6% of zinc all by weight; the sintering temperature is 700-740 DEG C.

Description

technical field [0001] The invention relates to a synthetic diamond saw blade, in particular to a synthetic diamond saw blade bonding agent. Background technique [0002] The existing synthetic diamond saw blade bonds mainly include nickel-based bonds, cobalt-based bonds, copper-based bonds and iron-based bonds. Iron-based bonds are widely used due to their low price and good mechanical properties. However, nickel-based binders and cobalt-based binders are gradually fading out because they are too expensive to meet market demand. These commonly used binders are usually uniformly mixed with single metal powder in a certain proportion, and after adding diamonds, they are hot-pressed and sintered to form a cutter head, and the matrix is ​​welded to form a diamond saw blade. The emergence of pre-alloying has gradually replaced single metal powder due to its good compactness, low melting point and special properties that single metal powder does not possess. However, the main c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/16C22C33/02C22C26/00
Inventor 朱华磊顾骏
Owner 湖北昌利超硬材料有限公司
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