2015年1月30日星期五

tile cutting wheels grinding wheel

Can periodically dressing the grinding wheel to maintain good performance and correct geometry appears to avoid passivation of the wheel, and form plugging distortion is often used metal cutting wheels dresser diamond pen. In operation tile cutting wheels, the dressing tool position is too high, improper trimming direction (eg reverse the direction of wheel rotation, the tilt angle is too large too small) or trimming excessive, will cause the wheel to generate strong vibration, or cause a gnawing diamond pen knife, but also a serious cause wheel breakage. The correct way is: diamond grinding wheel is in the center of the pen 1 ~ 2mm at the horizon, along the direction of wheel rotation, and the horizontal tilt angle of about 5 ° ~ 10 °. When dressing to force uniform, steady pace, not too big a dressing amount. The operator should stand on the side of safety wheel position, the front wheel can not stand the operation.
After Dresser by post must be re-rotation test before use.
5. Wheel of Transportation
(1) wheel in the handling, storage, and can not be subject to strong vibration and shock, when moving the scroll wheel is not permitted to avoid cracks, surface damage.
(2) printed with wheel speed characteristics and tile granite cutting discs safety signs are not free to smear or damaged, avoid using the confusion.
(3) Wheel Wheel storage time should not exceed the period of validity from the date wheel binder resin and rubber from the factory, if stored for more than a year before passing the test after use is subject to rotation.
(4) wheel storage site should be kept dry, suitable temperature, to avoid mix with other chemicals. Prevent wheel damp, cold, overheating, and exposure to hazardous chemicals to reduce the intensity of erosion so.
(5) wheel should be based on metal grinding different specifications, shapes and sizes, classification place, to prevent damage or laminated wheel deformation due to improper storage.

2015年1月27日星期二

abrasive cutting wheel grinding wheel cutting steel

This method uses high-speed rotating grinding wheel cutting steel. Grinding wheel with fiber, resin or rubber bonded abrasive made​​. In skilled manual operation, the abrasive cutting disc wheel can be quickly and accurately cut, and cut neatly, no glitches. Only use wheel straight cuts, but the vast majority use it enough. 
Wheel is usually used to cut the pipe. Grinding wheel factory also used unreasonable length slot. 
On-site repair usually handed grinders. However, the use of hand-produced work when operating grinders lot of dust and the "steel scrap, so they need dusting or protection devices. Production plant used grinders generally safe cooling system, so that both can reduce dust, and can prevent materials cause flap disc for stainless steel thermal damage.

2015年1月24日星期六

LEMAN cutting wheels Abrasive cutting - the installation site

1, the opening direction of the grinding machine should as far as possible towards the wall, not facing the pedestrian has equipment and personnel to operate the channel or cutting wheels nearby; 
2, if the grinding machine has been installed in a nearby device or channel, away from the grinding machine at the opening 1 ~ 1.5M 1.8M metal mesh should be set high to shield isolation; 
3, grinders shall be installed in a corrosive gas or flammable and explosive; 
4, grinders ground installation site should be kept dry; 
5, grinders use the site should ensure abrasive cutting disc adequate illumination;

2015年1月21日星期三

tile cutting wheels Abrasive Cutting - Hoods

1, grinders shields have sufficient strength (typically steel thickness of 1.5 ~ 3MM) and effective cover surface grinders hanging or cutting the maximum opening angle tile cutting wheels of 180 degrees or less tile cutting wheels;. Desktop and floor-grinding machines, the maximum opening angle in less than 125 degrees in the horizontal centerline of the wheel spindle opening angle less than 65 degrees; 
2, install protective cover firmly to prevent loosening due to high speed rotating grinding wheel, off; 
3, the gap between the shield and the wheel to bench grinder wheels match the new wheel and the front cover plate gap should be 20 ~ 30MM, and the wheel side of the gap cover plate is 10 ~ 15MM.

2015年1月18日星期日

abrasive cutting wheel Abrasive Cutting - block debris panels

1 block crumbs plate should have sufficient strength and adjustable; 
2, block debris panels should be securely metal cutting wheels mounted on a protective cover, complete the adjustment bolt fastening; 
3, block debris panels should be a strength, can effectively block the wheel flying debris and Mars; 
4, block debris panels should be larger than the width of the outer portion of the width of the shield; 
5, block debris panels should be able to wear with the wheel, and the wheel while adjusting the circumferential surface of the gap, the gap between the two is less than or equal 6MM; 
6, grinders shield wheel spindle in the center metal cutting disc of the opening angle below the horizontal may be set less than or equal to 30 degrees while retaining debris panels;

2015年1月15日星期四

LEMAN cutting wheels Abrasive Cutting - Wheel

1, wheel no cracks no damage. 
2, the wheel must be in good condition no cracks, no damage. Before installation should be visually checked and found crack damage, is strictly prohibited. 
3, prohibit the use of damp, stainless steel cutting discs cold wheel. 
4, use rubber binder wheel does not allow contact with oil, resin bond grinding wheel is not allowed contact with alkali substances, otherwise it will reduce the strength of the wheel. 
5, are not allowed to use the store over the rhythm of wheel. Such wheel will deteriorate, the use of very dangerous. 
6, resin bonded grinding wheel is generally one year, rubber bonded grinding wheel is generally two years, subject to the manufacturer's instructions. 
7, material cutting machine is prohibited under the magnesium alloy wheel. 
8, replacement wheel, mill workers should diamond concrete comply with the general safety procedures. Wheel of plywood to fit, generally not less than one-third wheel diameter.

2015年1月11日星期日

abrasive cutting wheel Metal bond diamond wheel

A diamond or cubic boron nitride (CBN) abrasive grinding wheel metal cutting wheels produced, because of its excellent grinding performance, have been widely used in various aspects of grinding. Diamond grinding wheel is carbide, glass, ceramics, gems high brittle materials effects tools. In recent years, with the rapid development of high-speed grinding and ultra-precision grinding technology, the wheel has put forward higher requirements, ceramic and resin bonded grinding wheels can not meet the needs of production, metal bonded grinding wheel because it tile cutting wheels combines strength high, forming a good, long life and other significant features which have been widely used in production.

2015年1月8日星期四

LEMAN cutting wheels Sintered metal bonded grinding wheel

Mostly bronze and other metals as a binding agent, with a high temperature sintering method, which combines high strength, good formability, high temperature, thermal tile cutting wheels conductivity and good wear resistance, long life, can withstand greater loads. Wheel in the sintering process because there is inevitably shrink and deformation, so before shaping the grinding wheel must be used, but it is rather difficult dresser. Currently used in the production of plastic wheel to roll in the dressing method not only time-consuming, but the process of trimming off the diamond particles are more wheel dressing itself consumes large, low-shaping accuracy. 
In recent years, scholars from various countries metal cutting wheels have been carrying out a study of the application of special processing method of finishing work metal bond diamond wheel, mainly electrolytic dressing, French dressing and composite trim EDM method. Electrolytic dressing method is fast, but shaping accuracy is not high; high precision EDM shaping trimming method, can be either plastic dressing, but shaping slower; composite trimming method spark composite electrolytic dressing, mechanical chemical compound trimming method etc., dressing better, but the system is more complex, and therefore sintered diamond wheel trim problem still has not been solved. Further, since the grinding wheel determines the manufacturing process is a random surface topography, geometry of the abrasive grains, the distribution and the height of the cutting edge which is inconsistent, so that only a few high cutting edge to cut the workpiece, the cutting wheels grinding limit further improve the quality of grinding and grinding efficiency.

2015年1月6日星期二

tile cutting wheels Plated metal diamond wheel

Advantages electroplated diamond grinding wheel: ① plating process is simple, low investment, easy manufacturing; ② without dressing, easy to use; ③ monolayer structure construction cutting blades determines it can achieve high operating speed, the current foreign high as 250 ~ 300m / s; ④ Although only a single layer of diamond, but there is still sufficient life; ⑤ for higher precision roller and the grinding wheel, is the only method of manufacturing electroplating. It is because of these advantages, plating wheel occupy undisputed dominance in high-speed, ultra-high speed grinding. Electroplated diamond grinding wheel defects: In conjunction with the surface of the metal coating and the substrate does not exist a strong abrasive chemical metallurgical combine, in fact, just being mechanically entrapped abrasive embedded in the coating metal, and thus a small holding force, the diamond particles in the load efficient grinding heavy shedding (or plating flaking) and lead to an overall failure; gripping force to increase the coating thickness must be increased, the result is highly abrasive and bare chip space is reduced, the wheel prone to clogging, cooling effect is poor, the surface prone to burns. Currently electroplated grinding wheel manufacturing has not been achieved by the optimized processing conditions required to flat cutting disc design the best wheel topography, these inherent drawbacks of a single-layer electroplated diamond grinding wheel is bound to greatly limits its application in the grinding efficiency....

2015年1月3日星期六

abrasive cutting wheel Monolayer brazed diamond grinding wheel

In order to give full play to the role of diamonds, to try to increase the bond and diamond holding force, improve the bonding strength of the wheel. High temperature cutting wheels brazing single grinding wheel to overcome the shortcomings of the electroplated grinding wheel, the diamond can be achieved, metallurgical chemical binders, metal bonding between the three substrates having a high bonding strength, the thickness of the bonding layer will remain in the mill only grain height can be 20% to 30% efficiency at high load high speed grinding abrasive firmly hold on so bare brazing highly abrasive grinding wheels up to 70% to 80%, thus increasing the chip space, wheel clogging, use abrasive more fully. In the electroplated grinding wheel under the same processing conditions, a single layer of high temperature brazing superhard abrasive wheel grinding force, the power consumption, lower the temperature of the grinding means construction cutting blades to achieve higher operating speeds, which 300 ~ 500m / s more ultra-high speed grinding has special significance.