Home > News > Industry News > Brazing technology in terms of.....
Browse Categories
Diamond Segments(147)
Stone Cutting Tools(224)
Stone Grinding & Polishing Tools(1014)
Stone Drilling Tools(145)
Concrete Cutting Tools(50)
Concrete Grinding and Polishing Tools(595)
Concrete Drilling Tools(30)
Ceramic Diamond Tools(27)
Vacuum Brazed Diamond Tools(73)
Machinery and Other Tools(174)
Other Tools Category(108)
Cuting,grinding,polishing and drilling tools(769)
Hot-sale Products
Contact us
Contact us: Fujian Nanan Boreway Machinery Co.,Ltd. ADD: HuaHui Center, Shuitou Town,Quanzhou, Fujian, China, ...
Contact Now
Latest News

Where can curb stones be used?

Where can curb stones be used? The sharp cutting blade produced by boreway factory has long service life, high efficiency and diamond saw blade, which forms the boundary of curbstone, roadway, sidewalk, green space, isolation belt and other parts of the road.

How to wholesale bush hammer tools?

As one of the few litchi face tool manufacturers in the field of diamond tools in Quanzhou, China, we must continue to innovate and provide standards for technological progress

What are the characteristics of high quality diamond calibration wheels?

Boreway Manufacturer have provide the Diamond Calibrating Rollers in different shapes and colour, We can also customize the specifications and models that suit your requirements according to your needs.

What Kind Of Equipment Can Be The Concrete Surface Smooth?

What Kind Of Equipment Can Be The Concrete Surface Smooth? The concrete flattening machine relies on the surface grinding head equipped with diamond b...

What should I do if there are cracks in the concrete floor (1)?

What should I do if there are cracks in the concrete floor,There are many methods below, please find in the article

What are the characteristics of floor grinding machines?

Boreway Supply various specifications of diamond grinding tools and machines, used for marble, granite, various materials of stone, concrete temples, terrazzo floors and other grounds.

What are the effects of stone processing?

What products can stone be processed into? Stone can be made of a wide range of products, as long as wood can be made, stone can also be made, and the hardness and effect are better than wooden products, more atmospheric, and longer life.
What are the effects of processing the stone surface? What is the function of fixed thickness?

What is the thickness of the base of the ultra-thin saw blade?

Ultra-thin diamond saw blade refers to high-precision special-purpose diamond cutting blade.According to different bonding agents, the production is divided into metal bonding agents, resin bonding agents and electroplated diamond cutting blades.

News

Brazing technology in terms of diamond tools

  • Author:Sherry Huang
  • Source:www.boreway.net
  • Release on:2015-10-04
Due to the interface between the diamond and the general high metal alloys can, causing the diamond particles can not be a general low-melting alloy infiltration, poor adhesion, traditional manufacturing techniques, the diamond particles alone produces mechanical gripping force after the carcass shrink embedded in the matrix metal base, but did not form a strong chemical bonding or metallurgical bonding, resulting diamond particles work easily separated from the carcass metal base, greatly reducing the diamond tool life and performance levels. Most of diamond impregnated type tool utilization is low, a lot of work off the loss of expensive diamond in the litter. Linzeng Dong et pioneered the use of the diamond surface metallization techniques to impart the diamond surface many new features, such as excellent thermal conductivity, good thermal stability, improving its original physical and chemical properties of the metal or alloy to improve its wettability and other solution.

Problem on the diamond surface metallization 1970s caused a diamond tool manufacturing sector at home and abroad are highly valued. Many people committed to the sintering process to achieve the diamond surface metallization of study, matrix material added or diamond surface pre-glue strong carbide metal powder (before this diamond is not heated, does not chemically react with the coating, can only belong to diamond pack clothing), to expect them to achieve the sintering process of diamond chemical bond. Although the literature has demonstrated some metals such as tungsten (not oxidized) low temperature (about 800 ℃) can be formed on the surface WC layer of diamond.

However, to achieve a pre-metallized diamond surface by the process point of view, to be under vacuum above 600 ℃ heated over one hour to get adhesion. In currently used impregnated diamond cutting tools sintering conditions point of view, non-vacuum or low vacuum does not exceed 900 ℃ heat 5 minutes or so, it is unlikely to generate a diamond surface metallization layer. Because both active metal atoms (Ti, V, Cr, etc.) to the diamond surface enrichment has reached interface reaction binding agent are metallurgically bonded diamond atomic diffusion process, pressing the temperature and such a short time in accordance with this process extremely insufficient. Solid phase sintering conditions (sometimes a small amount of low-intensity low melting point metal or alloy liquid phase), the carcass of the chemical bonding of diamond or metallurgical bonding is very weak or no form.

Pre-metallized diamond surface is not the ultimate goal, but only the desired combination of measures to achieve one of the chemical metallurgy and metal carcass. Sintered diamond saw (drill) teeth after plating, its broken surface of the exposed diamond coating are lost, and the loss of residual pit diamond surface is very smooth, this phenomenon seems to explain the diamond and matrix also failed to meet chemical package inserts levels. So even realized premetallised diamond surface, conventional solid-phase powder metallurgy sintering method is also impossible to achieve a solid combination between diamond and matrix material.

In the late eighties of last century, people began to explore the brazing technology for the production of diamond tools. Coated diamond surface using certain transition elements (e.g. Ti, Cr, W, etc.), and the surface chemical reaction occurs to form carbides therewith. Through the role of this layer of carbide, diamond, binding agents, matrix can be a solid three chemistry achieve metallurgical bonding by brazing, in order to achieve real diamond surface metallization, which principle diamond braze. As can be seen from the article published patent, the technology enables a diamond blade reaches maximum diameter of 2/3, tool life increased by 3 times, and this value is less than 1/3 of conventional, allowing the blade protrusion values ??are available up to a stable job When the edge value to obtain. Therefore, the use of brazing technology is expected to achieve matrix metal (solder) and the parent material - Firmly bonding between diamond steel substrate.