Diamond Blade
3. Technique of Super Thin Diamond Circular Saw Blade
After years of hard study and the practice of diamond super thin circular saw blade, we conclude that diamond super thin circular saw blade plays a very important roll in stone production. It saves production cost and improve work efficiency at the same time.
4.Why we use diamond super thin circular saw blade?
In the production of stone with diamond saw blade, the key point is how to reduce production cost and improve work efficiency. The percentage of outturn of raw stone block especially expensive imported block is at the first consideration. With diamond super thin blade, we can improve the percentage of outturn of raw stone material by 5%, reduce the production cost. Besides, the diamond blade is quite thin, therefore, the cost of diamond segment and water and electricity is saved. So the usage of diamond super thin circular saw blade reduce production cost greatly which is about 10-40 square meter.
Diamond Segment
1. The sharpness of diamond segment is the key.
For the mechanical aspect, since the thickness of super thin blade is reduced, the rigidity of blade is weakened. Besides standard stiffness, hardness and total runout of diamond blade, in order to remain the cutting ability like standard thickness blade, the sharpness of diamond segment is the first key. The sharpness of diamond segment is determined by the following 5 factors.
<1>. Increasing the strength of diamond. The strength of diamond for super thing diamond segment should be 1~2 kg higher than the one for standard diamond segment.
<2>. Increasing the proportion of large size diamond, that is to say, increase the proportion of 40/50# diamond to above 60%.
<3>. Reducing the concentration of diamond, usually below 25%.
<4>. Appropriately select the formula for matrix, that is to say select the low temperature metal bond formula which let the edge easily to be opened and the diamond doesn’t strip easily.
<5>. Shortening the length of diamond segment, that is to say from 24mm to 21mm.
2. Diminishing the input power.
Since the thickness of steel blank is reduced, its stiffness is weakened, the torsion force of diamond blade is reduced as well; since the thickness of diamond segment is reduced, the length is shortened, the cutting resistance is reduced; since the sharpness of diamond segment is enhanced, the cutting strength is increased and cutting resistance is reduced. The main motor can be changed from 30kw to 22kw and keep the electric current about 35A, the production output can reach previous standard level.
3. Preventing thermal stress influence.
It is recommended to use low temperature silver solder pieces for diamond segments welding of super thin diamond circular saw blade. To avoid biggish heat affected zone, the heating time of welding should be short (till the silver solder pieces melt); it is recommended to adopt space welding, generally weld one piece of diamond segment after an interval of 6~8 teeth.
Diamond Wire Saw, Diamond Wire
1.What materials could be cut by using the diamond wire saw?
Diamond wire saw could be used for cutting granite, marble, sandstone and other stone quarry. In fact, diamond wires could be used for cutting all materials, like reinforced concrete, cement, iron, asphalt, ceramic, glass and so on.
2.Why the diamond bead and diamond wire may be ripped/destroyed during cutting?
There are four reasons that diamond wire and diamond bead may be destroyed during cutting, the first one is that the diamond wire saw has already worn out; the second one is not use the liquid cooling system, or not add water while cutting; the third one is diamond wire saw could not be mouted correctly; the fourth one is decline or rise its speed abruptly which out of it capacity.
3.What's the difference between sintered and electroplated diamond saw wires?
There's two different methods to bond diamond for the pear: first by using galvanizing process in the nickel bath, second by using blending metal and diamond sintered in oven or in graphited mould.
4.I have to cut very abrasive materials, like granite and marble. What type of wire should I use?
Firstly, the wire with a rubberized assembly; Seconddly, the type of bead that is resistant to abrasion.
