alloy saw the proper use

(A) Basic requirements:
1 Press the device design requirements select the appropriate blade.
(2) The  concrete core bits equipment shall be equipped with safety devices, such as: protective cover, power brakes, overload protection.
3 There are professional operators to install and use, and wear work clothes, wearing goggles, earmuffs and so on.
4 operator can not wear gloves, long hair work to be placed inside the cap, and pay attention to ties and cuff, to avoid any danger.
5 away from the fire source and humid environments.
(Two) Installation requirements:
1, the equipment in good condition, spindle no distortion, no track jump, fixed solid, no vibration.
2, check the blade for damage, tooth is complete, sawn board is flat and smooth, and the presence of other anomalies, in order to ensure safe use.
3, the assembly, make sure the blade spindle rotation direction of the arrow with the device in the same direction.
4, the blade installed to keep the axis of the chuck and clean flange, flange diameter of the blade diameter, ensuring that the blade flange closely integrated, installed dowel pins, tighten the nut. Should be appropriate to the size of the flange, the outer diameter shall be not less than the blade diameter of 1/3.
5, the device before starting, to ensure safety in the case, a single person to operate the equipment, jog idling, check the device rotation is correct, with or without vibration, blade installed idling after the first few minutes, without slipping, swing or normal after beating work.
(Three) Requirements:
1, work, work should ensure that fixed profile positioning in line to eat cutting direction to avoid abnormal cut, do not exert side pressure or curve cutting, feed to a smooth, avoid contact with the workpiece edge impact resistance, resulting in damage to the blade, or workpiece flying out of an accident.
2, the work, and found abnormal sound and vibration, cutting surface roughness, or odor, you must immediately terminate the job, timely inspection, troubleshooting to avoid accidents.
3, at the beginning and stop cutting cutting, do not feed too fast to avoid broken teeth and damaged.
4, if the cutting aluminum or other metal, to use special cooling and lubrication fluid, to prevent overheating of the blade, resulting in tooth paste, and other damage, affecting the cutting quality.
5, flutes and suction equipment to ensure smooth flow of slag device to prevent slag accumulation into blocks, affecting production and safety.
6, dry cutting, do not long continuous cutting, so as not to affect the diamond cup wheels  life of the blade and the cutting effect; wet sheet cutting, water jet cutting should be added, to guard against leakage.
(Four) Blade Maintenance:
1, the blade if not used immediately, it should be flat or use the hole to hang up, the blade can not be stacked horizontally with other items or foot, and pay attention to moisture and corrosion.
2, when the blade is no longer sharp cutting surface roughness must be promptly re-grinding. Grinding can not change the original angle, and destruction balancing.
3, blade diameter correction, positioning hole machining, etc., must be carried out by the factory. If the processing is bad, will affect the product effect, and may be dangerous, reaming in principle can not exceed the original diameter 20mm, so as not to affect the balance of stress.
4, the choice of alloy wheel.
1) resin bond diamond grinding wheel bond strength is weak, it can be self-sharpening, grinding, and not blocked, high grinding efficiency, small grinding force, low grinding temperature, the disadvantage is poor wear resistance, abrasive wear and  stone polishing pads tear , it is not suitable for heavy duty grinding.
2) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, sharp cutting, grinding, high efficiency, easy to heat and clogging, thermal expansion is less easy to control precision, shortcomings coarse grinding surface, higher costs .
3) metal-bonded diamond wheels combined with high strength, wear resistance, low wear, long life, grinding, low cost, can withstand a greater load, but sharp poor, easy to plug.
4) abrasive particle size on the grinding wheel cutting the amount of blockage and have a certain influence, coarse sand and fine sand compared to the depth of cut large abrasive cutting edge wear increases, whereas wheel easy to plug.
5) Wheel hardness greater impact on congestion, high hardness, high thermal conductivity wheel is not conducive to surface cooling, but is conducive to improve the precision and durability.
6) Wheel selection is an important characteristic concentration, its grinding efficiency and processing costs have a significant impact, affect the efficiency of the concentration is too low, whereas abrasive easy to fall off, but the best combination of optimum concentration range.