博文

目前显示的是 十一月, 2019的博文

What is the diamond segment welding technique? How to weld diamond segments correctly?

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There are three methods to weld diamond segments onto the saw blade core: silver/copper welding diamond blade(brazed), wholly sintered diamond blade and laser welded  diamond blade . ​ silver/copper  brazed diamond blade:  diamond segments  are brazed to the steel saw blade core by using a silver solder. Silver brazed diamond blade can only be used in wet cuttings. If they are used in dry cuttings, the silver solder may melt under the high temperature generated in the dry cutting and the segments can break from the steel core and be extremely dangerous. People use high frequencey machine or fire to weld them on blade blank. Wholly sintered diamond blade: the diamond blade is made by putting the steel core together with the diamonds and the metal bond materials(metal powder) into a mold and then sintering them in a sintering machine. Laser welded diamond blade: the laser melt the diamond segment and the steel core creating a stronger welding, which can hold the diam...

Why diamond core bit segment broken during coring

Sometimes in the world of concrete core drilling we face the frustration of loosing a core bit segment or two while drilling, more times than not it’s that urgent job that must be done NOW. So let’s take a look at WHY this might happen. This is written in regards to wet series  concrete  diamond core drill bits 1. Manufacturing Fault One possible cause could be that a  core bit  segmen t  might not have been brazed or laser welded on properly. If this is the case, the diamond core bit segment will more than likely come off within the first hole. Usually in the first 50mm depth of cut. To determine if this is the case, where the core bit segment is missing from the barrel, it will look and feel smooth. You will notice that the diamond drill segment is also rather smooth on the surface that was welded to the core barrel. This is most likely with brazed core bits. Don’t assume that just because a segment has come off drilling your first hole t...

How ChinShine Customers Buy and Sell Diamond Blade|Diamond Grinding Cup Wheel

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Mr.Henry worked in a European famous diamond tools company before, now he has been using and selling our  diamond blades , diamond core drill bits, diamond grinding cup wheels and other diamond tools in European countries. Here you can see how he talks about buy and sell ChinShine diamond tools. I worked Mon-Fri in sales, selling diamond saw blades and other diamond tools for a company that buys their diamond blades from EHWA under a private label (over the phone i.e. “phone sales”) and will address that matter at the bottom of this message. Diamond grinding cup wheel, diamond core drill bits, even diamond segments are parts of sales tools. The good thing about being directly involved in the sales process is it allows me to gain invaluable insight into the diamond saw blades/diamond cup wheel/ diamond core drill bit  business since I was dealing directly with the end-user. Speaking to these business owners/contractors etc me gives a great understanding of the b...

How diamond blades market in last 20 years?

​In China, until the end of last century, modern efficient stone cutting  diamond tools (diamond stone tools) had developed lowly. What tool industry offers for manufacturing is basically the traditional standard high speed stone tools and a small amount of carbide cutting tools, which is equivalent of the tool industry level in the developed countries thirty years ago. Since entering the new century, however, as a new round of economic growth in China, diamond tools industry speeds up the pace of modernization. Chinese digital manufacturing technology and equipment (including diamond blade, CNC machine tools, form a complete set of features and modern and efficient tool, numerical control instrument) have rapidly development. The end of last century, Chinese stone cutting machine tool production has reached 190000 units. At that time, modern efficient tools (such as diamond blade) represented by new type of diamond tools accounted for less than 15% of all sales of cutting stools,...

How to choose diamond grinding cup wheel?

Diamond grinding cup wheel looks like a cup, people also call it diamond cup grinding wheel, diamond grinding disc or diamond cup wheel. It is used for grinding concrete, terrazzo, granite, marble and other natural stone. Diamond grinding cup wheel is made of  diamond segments  and iron cup base, the diamond segment could be welded on iron base or sintered with iron based completely. They are usually installed on handheld angle grinder and floor grinder machine. There are different types and diameter of diamond grinding cup wheels for various applications.  For very coarse, coating, paints, glue and similar surface. Coarse segmented or PCD diamond grinding cup wheel is suitable for it. They are fast grinding, long lifespan cost saving for you.  The coarse diamond segment could be Arrow shape, Double row, etc. For grinding concrete, diamond grinding cup wheel has a range of different hardness on bonds, they are very hard, hard, medium hard, soft and ...

How to choose the right diamond saw blade & diamond cutting disc

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ChinShine has strong ability to research and produce diamond saw blades,  diamond cutting disc  for granite, marble, sandstone, andesite, concrete, firebrick, plastic, etc. In this article, you can learn how to choose the right diamond saw blades and diamond cutting disc from the market: 1.The particle size of  diamond saw blades : the particle size of diamond saw blades is big and single, there will be a sharp blade saw machine and its cutting efficiency is good. However, the bending strength of diamond saw blades will decrease. When the particle size of diamond saw blades is small and different sizes are mixed, the durability of diamond cutting disc is better, but the efficiency will decrease. Considering the above factors, the choice of diamond saw blades’ particle size of 50/60 relatively is appropriate. 2.The concentration distribution of diamond saw blades: in a certain range, when the concentration of diamond saw blades changes from low to hig...

Diamond saw blade, the overall domestic market is getting better

Recently, the fourteenth session of diamond tools Welding & Cutting Fair in Quanzhou was concluded. "From the point of view of the exhibition, domestic diamond tool companies by the financial crisis is not much, and foreign exhibitors and visitors have decreased sharply. Domestic companies, new invention, new technology has became the highlight of this exhibition." An news reporter from the exhibition industry on China Industry said. In addition, this year the number of visitors increased sharply,  Quanzhou ChinShine Diamond Tools , Quanzhou Wanlong Diamond Tools,  Quanzhou Huada Superhard Tools, Quanzhou Zhongzhi Diamond Tools and other diamond tools companies have emerged in the exhibition audience list. "This phenomenon indicates that overal situation of the domestic market of diamond tools is improving."  China Mechanical Engineering Society Institute of Welding Work Committee, professor of Huaqiao University Jian Wu expressed. "The gol...