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Metal ceramic combination binding agent and combination binding agent diamond wheel

A metal-ceramic composite and diamond grinding wheel technology, which is applied in the field of diamond grinding wheels, can solve the problems of high sintering temperature, inability to apply non-metal and non-ferrous metal materials, etc., and achieve excellent performance, good self-sharpening and high rigidity.

Active Publication Date: 2014-06-04
江苏赛扬精工科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ceramic-metal composite binder described in the invention patent is based on ceramics, and a small amount of metal is filled as a toughening phase; it is designed with the sintering process of the ceramic binder, so its sintering temperature is high, so the composite binder only It is suitable for cubic boron nitride grinding wheels, but not for diamond grinding wheels. The obtained grinding wheels are used in the processing of iron group metal materials, and cannot be applied to the processing of non-metal and non-ferrous group metal materials.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment one: see attached figure 1 , preparing a composite bond diamond grinding wheel, comprising the following steps:

[0039] 1. Preparation of ceramic powder:

[0040] Raw materials according to the following weight percentages: silicon dioxide SiO 2 55%, boron oxide B 2 o 3 25%, potassium oxide K 2 O 10%, magnesium oxide MgO 7.5%, calcium oxide CaO 2.5%, mixed and smelted to prepare ceramic powder;

[0041] The preparation steps are:

[0042] (1) Prepare mixed powder: mix and ball-mill the raw materials for preparing ceramic powder and pass through a 325-mesh standard sieve to obtain mixed powder;

[0043] (2) Melting glass: Melting the mixed powder prepared in step (1) in an electric furnace at 1700°C for 3 hours, and quenching to obtain a glass-ceramic block;

[0044] (3) Preparation of ceramic powder: crush the glass-ceramic block obtained in step (2) in a ball mill for 10 hours, and pass through a 325-mesh standard sieve to obtain ceramic powder.

...

Embodiment 2

[0051] Embodiment two: see attached figure 1 , prepare composite bond diamond grinding wheel, technological process is identical with embodiment one, specifically:

[0052] 1. Preparation of ceramic powder:

[0053] Raw materials according to the following weight percentages: silicon dioxide SiO 2 50%, boron oxide B 2 o 3 27%, potassium oxide K 2 O 15%, magnesium oxide MgO 5%, calcium oxide CaO 3%, mixed and smelted to prepare ceramic powder.

[0054] 2. Preparation of composite bond diamond grinding wheel:

[0055] (1) The raw materials with the following weight ratio: 663 bronze powder 80%, ceramic powder 20%, ball milled in a planetary vacuum ball mill for 20 hours, the mixture was placed in a vacuum box for 24 hours, and then taken out through a 325-mesh standard sieve , to obtain a composite binder. Put the obtained composite binder and diamond abrasive into a planetary vacuum ball mill and mix evenly, then pass through a 200-mesh standard sieve, add a pore-formi...

Embodiment 3

[0060] Embodiment three: see attached figure 1 , prepare composite bond diamond grinding wheel, technological process is identical with embodiment one, specifically:

[0061] 1. Preparation of ceramic powder:

[0062] Raw materials according to the following weight percentages: silicon dioxide SiO 2 45%, boron oxide B 2 o 3 27%, potassium oxide K 2 O 13%, magnesium oxide MgO 10%, calcium oxide CaO 5%, mixed and smelted to prepare ceramic powder.

[0063] 2. Preparation of composite bond diamond grinding wheel:

[0064] (1) The raw materials with the following weight ratio: 60% of 663 bronze powder and 40% of ceramic powder were ball milled in a planetary vacuum ball mill for 20 hours. , to obtain a composite binder. Put the obtained composite binder and diamond abrasive into a planetary vacuum ball mill and mix evenly, then pass through a 200-mesh standard sieve, add a pore-forming agent, and then pass through a 200-mesh standard sieve to obtain a grinding wheel mixtu...

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Abstract

The invention belongs to the field of diamond wheels and particularly relates to a metal ceramic combination binding agent and a combination binding agent diamond wheel. The metal ceramic combination binding agent is composed of, by weight, 60%-80% of 663 bronze powder and 20%-40% of ceramic powder. The ceramic powder is homemade and composed of, by weight, 45%-60% of silicon dioxide, 20%-30% of boric oxide, 10%-15% of potassium oxide, 5%-10% of magnesium oxide and 2%-5% of calcium oxide. The combination binding agent diamond wheel is composed of, by volume, 25%-40%of diamond abrasive, 55%-75% of combination binding agent and 2%-3% of pore forming agent. When the diamond wheel made of the metal ceramic combination binding agent is applied to a five-axis cnc machine tool, the good sharpness and the good self-sharpening performance of a ceramic binding agent are kept and the advantages of high rigidity and the good shape-maintaining performance of a metal binding agene are obtained. The comprehensive processing efficiency is improved by 100% to 150%.

Description

technical field [0001] The invention relates to a metal-ceramic composite bond and a composite bond diamond grinding wheel prepared by using the metal-ceramic composite bond, belonging to the field of diamond grinding wheels. Background technique [0002] Grinding wheel is the main tool for grinding, which is a porous object composed of abrasive and bonding agent. Diamond abrasives are used as raw materials, and metal powder, resin powder, and ceramics are used as binders respectively. The circular bonded abrasive with a through hole in the center is called a diamond grinding wheel. Due to the characteristics of diamond abrasives (high hardness, high compressive strength, and good wear resistance), diamond abrasives have become ideal tools for grinding hard and brittle materials and cemented carbide in grinding processing, and are widely used in processing low Metal and non-metal hard and brittle materials with iron content. [0003] With the development of science and tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/14B24D18/00
Inventor 龚文王凯平涂俊群
Owner 江苏赛扬精工科技有限责任公司
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