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Alloy column and manufacturing method thereof

A manufacturing method and alloy technology, applied in the field of powder metallurgy, can solve the problems of high manufacturing cost, incompatibility of product wear resistance and toughness, etc., and achieve the effect of improving bonding strength, wear resistance and toughness

Inactive Publication Date: 2016-11-23
张倩楠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, a large number of impregnated alloys and diamond compacts are used in mining and coal mining. Among them, impregnated alloys mainly refer to tungsten carbide alloys and titanium carbide alloys. Both tungsten carbide alloys and titanium carbide alloys are produced by vacuum or inert gas. The protection sintering is completed. Therefore, the price of raw materials and the process plan cause high manufacturing costs, and the wear resistance and toughness of the product cannot be combined; while the diamond composite sheet is a high-temperature and high-pressure composite sintered material of diamond and tungsten carbide alloy. can't have both

Method used

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  • Alloy column and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] In the first section of the previous section, weigh 0.2 kg of diamond, add 0.02 kg of 10 micron WB to 2 kg of tungsten carbide mixed powder 2 (Me) new material, add 0.09kg of 10 micron WB to 3kg of tungsten carbide powder in the second section of the middle section 2 (Me) new material, add 0.5 kg of 10 micron WB to 5 kg of ferromanganese alloy powder in the third paragraph of the lower paragraph 2 (Me) The new material is pressed into a column shape in a grinding tool with a four-column press, dewaxed at 650 degrees and loaded into a composite pyrophyllite, and then pressed figure 1 The sintering process line shown is sintered using a six-sided top press. The abscissa in the figure is the time axis, and the ordinate is the qualitative representation of pressure and power. First, raise the pressure line to 70Mpa for 2 minutes, start heating after holding the pressure for 5 seconds, raise the output current of the heater to 1080 amps in 10 seconds, keep warm for 8 minute...

Embodiment 2

[0031] In the first section of the previous section, weigh 0.1 kg of diamond, add 0.04 kg of 1 micron WB to 2 kg of tungsten carbide mixed powder 2 (Me) new material, add 0.15 kg of 1 micron WB to 3 kg of tungsten carbide powder in the second segment of the middle section 2 (Me) new material, add 1 kg of 1 micron WB to 5 kg of ferromanganese alloy powder in the third paragraph of the lower paragraph 2 (Me) new material, be pressed into columnar shape in abrasive tool with four-column press, pack into composite pyrophyllite after dewaxing at 650 degrees and use six-side top press to sinter, process is the same as embodiment 1, takes out alloy post after decompression, The wear ratio of each segment of the alloy column relative to the silicon carbide grinding wheel measured by the standard wear ratio grinding wheel is 180:50:10:1. Under the same test standard: the relative wear resistance ratio of 45 steel (hardness HRC40) and silicon carbide grinding wheel is 0.3:1; the relati...

Embodiment 3

[0033] In the first section of the previous section, weigh 0.2 kg of diamond, add 0.03 kg of 5 micron WB to 2 kg of tungsten carbide mixed powder 2 (Me) new material, add 0.12 kg of 5 micron WB to 3 kg of tungsten carbide powder in the second segment of the middle section 2 (Me) new material, add 0.75 kg of 5 micron WB to 5 kg of ferromanganese alloy powder in the third paragraph of the lower paragraph 2 (Me) new material, be pressed into columnar shape in abrasive tool with four-column press, pack into composite pyrophyllite after dewaxing at 650 degrees and use six-side top press to sinter, process is the same as embodiment 1, takes out alloy post after decompression, The wear ratio of each segment of the alloy column relative to the silicon carbide grinding wheel measured with a standard wear ratio grinding wheel is 300:53:9:1. Under the same test standard: the relative wear resistance ratio of 45 steel (hardness HRC40) and silicon carbide grinding wheel is 0.3:1; the rela...

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Abstract

The invention belongs to the field of powder metallurgy and discloses an alloy column. The alloy column comprises three different sections which are an upper section, a middle section and a lower section. The upper section is made of diamond, tungsten carbide and WBn (Me). The middle section is made of tungsten carbide and WBn(Me). The lower section is made of ferro-manganese alloy powder and WBn(Me). The invention further discloses a manufacturing method of the alloy column. According to the method, the raw materials of the three sections of the alloy column are pressed and manufactured into column shapes in a grinding tool through a four-column pressing machine, after dewaxing is carried out, the raw materials are stored into composite pyrophyllite, a six-surface diamond presser is used for carrying out temperature rising, boosting and sintering, and after pressure relief, the materials are taken out. The alloy column is low in manufacturing expense and has wear resistance and toughness.

Description

【Technical field】 [0001] The invention belongs to the field of powder metallurgy, in particular to an alloy column and a manufacturing method thereof. 【Background technique】 [0002] As the hardest basic material in the world, industrial diamond has been widely used in various industries. After more than ten years of rapid development, my country's total diamond output in 2015 has reached 20 billion carats, ranking first in the world in terms of production capacity and quality. [0003] At present, a large number of impregnated alloys and diamond compacts are used in mining and coal mining. Among them, impregnated alloys mainly refer to tungsten carbide alloys and titanium carbide alloys. Both tungsten carbide alloys and titanium carbide alloys are produced by vacuum or inert gas. The protection sintering is completed. Therefore, the price of raw materials and the process plan cause high manufacturing costs, and the wear resistance and toughness of the product cannot be com...

Claims

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Application Information

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IPC IPC(8): B22F7/06B22F3/14B22F1/00
CPCB22F1/0003B22F3/14B22F7/06
Inventor 张倩楠
Owner 张倩楠
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