4 Advice to Choose a 600mm diamond dimple core bit

This artical tell you how to retip/weld diamond segments on core barrel.

With competitive price and timely delivery, Corediam sincerely hope to be your supplier and partner.

Worn out diamond core drill bit segment or damaged core drill bit do not always need throw away. Although ChinShine can't provide a re-tipping service at your side, we make diamond core drill bits, diamond segments and provide the silver solder, magnet holder, flux, and welding machine, so you can do the welding yourself.  We can make various diamond segments for fast, free drilling in concrete and stone, all kinds of bond and formula for your choice, such as arix diamond segments, dimple diamond segments, roof diamond segments, turbo segment..... The high quality polycrystalline diamonds ensure excellent drill speeds and footage.

Before re-tipping, check the following:

• Check the core bit thread to see if it is damaged

• Check the barrel body to see if it is too thin or bend

• Check the outside diameter of the barrel for roundness or damage

If all these are serviceable, retipping is possible. Your core body can be brazed by your local saw doctor or sharpening outlet, or any engineering workshop that offers brazing services.

If you want to re-tip diamond segments on core barrel by yourself, you will need these tools:

Heat source, gas or high frequency welding machine

Silver  welding Solder

Flux

Diamond Segments

Magnetic welding holder

Silver Solder: Use the right brazing rod or silver solder. You need silver solder rods, cadmium free, with 40% to 45% silver.

One silver welding stick will usually do 10-20 segments, depending on your skill.

Flux: A fluxing agent is required for all brazing jobs. The flux removes oxides from the base material and prevents oxidation during the heating process, thus enablng the free flow of the solder, you can find the cheap flux at your local market.

Diamond Segments: Obviously, we make all kinds of premium quality diamond segments for your choice, such as arix , roof, turbo, dimple... .

Here are the diamond segments quantity per core bit:

When replacing segments, just count how many you need.

For crown segments, we just need an accurate diameter of the crown.

You will then need to pick the style of segment you want:

1. Remove remaining diamond segments if replacing all segments (use heat and pliers to melt the solder), otherwise check existing segments if replacing lost segments only.

For more information, please visit 600mm diamond dimple core bit.

2. Carefully clean the barrel welding surface with an angle grinder.

3. Gently clean the bottom and end surfaces of the segments a little with a 100/120 grit grinding wheel. Try not to expose any diamonds  as this will reduce the strength of the brazing, possibly with the risk of segment loss.

4. Add flux to the brazing surfaces of the diamond segments and the barrel and let dry.

5. Check the thickness of the segments and put your brazing magnet tools on the inside of the core. Choose the magnet setting so that the segment clearance on the outside will be about twice the clearance on the inside. This normally means using a 0.5mm magnet clearance when the difference is up to 1.5mm between segment and core thickness, and 0.75 mm on all other dimensions.

6. However, when coring very abrasive materials (like natural limestone or asphalt) increase the clearance one step on the inside, but never more than to 50/50 clearance.

Note, on very thin segments it may be impossible to get double the clearances on the outside, but never make the inside clearance larger than that of the outside clearance.

Start brazing by gently warming up the core under the segment and continue working with the flame sideways and up and down over the whole segment. Never keep the flame still and never use too hot a flame. Make sure the whole segment is warmed up and gets the same light red colour all over.

Add silver solder and continue warming until the solder melts and spreads. The silver solder should be melted by the heat of the metal pieces being joined, not by direct contact with the flame of the torch.

Continue to the next segment and repeat the brazing until all segments are brazed. Check each brazing carefully. If any brazing does not look good, braze again!

Dear customers and friends,

As the U.S. Federal Reserve continues to print a large number of money, inflation is severe, and the prices of raw materials (Diamond, steel, copper, tin, cobalt, etc. Diamond segment and diamond saw blade are made of these materials) and transportation costs continue to rise. At first, we thought that this situation would pass soon, but now, things may become more serious. The imminent economic crisis is not alarmist.

The Chinese government has begun to restrict industrial electricity use, please let us tell you what this means. During the epidemic, most of the world's commodities were produced and exported from China. Now, the two countries with the largest economies in the world are fighting an economic war without gunpowder. China's restrictions on electricity use are restricting factory production and restricting the export of goods. Because the U.S. uses U.S. dollar hegemony to print a large amount of money, and our transactions basically use U.S. dollars. In this way, if China exports too much goods, it will damage the Chinese economy, and potential price increases are inevitable. This is in line with the purpose of the United States to suppress and restrict China's economic development.

If this continues, perhaps the biggest problem soon is not the price increase and shipping costs, but the difficulty of getting the goods. Because our order production time will be much longer than usual, it may need to be extended by 50%-100%. Many factories in China now only allow electricity for 15 days a month. Therefore, if you need any products, please DO place an order immediately when things have not reached more serious point. When the crisis really comes and your competitors are out of stock, you have the stock. This will bring great protection. Otherwise, the consequences will be disastrous.

We sincerely hope to help everyone who sees this news. Please pay attention and plan well in advance, and wish your business smoothly.

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Contact us to discuss your requirements of HTC diamond grinding shoes with 2 segments. Our experienced sales team can help you identify the options that best suit your needs.