About choose the diamond grinding wheels concentrations
Diamond concentration is the percentage share of the working layer.
Coarse-grained, coarse, requiring high production efficiency, lower surface roughness of less demanding work, wide wheel work, etc., all use high concentrations, whereas use low concentrations.
Resin bonded grinding wheel is generally used in concentrations of 75 to 100 percent.
Vitrified diamond grinding wheels generally use 100 to 200% concentration.
Metal bonded grinding wheel is generally used in concentrations of 75 to 150 percent.
Relationship diamond concentration and content
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2014年2月19日星期三
diamond blade play an important role in the stone cutting
Due to manufacturing needs , now used synthetic diamond stone processing industry in the number of straight up , their consumption accounts for about 90 % of the country 's total output of synthetic diamond , the domestic diamond blade matrix are mainly used in stone processing industry .
Classified by material , the current domestic production of diamond saw blade material matrix mainly 50Mn2V, 75Crl and 65Mn three materials , as well as some low-end market with a 45 # steel. 45 # steel is ordinary carbon steel , 65Mn spring steel is common , 75Crl high carbon alloy steel . In comparison , 50Mn2V is a carbon steel , 50Mn2V fine grain size , high thermal stability, high strength and toughness , fatigue resistance and heat resistance. 50Mn2V saw the matrix material , with a number of complex welding , long service life , the welding head blade easily deformed, easy to repair after deformation , etc., as well as in the course of the product so that the effect of high rigidity gradually , so 50Mn2V materials are widely used in the processing and production of diamond saw blade matrix .
Classification according to specifications , the domestic stone processing blade matrix size starting from ф200mm maximum of ф3500mm ( foreign specifications for maximum saw blade towel 5000mm). Which , dp200-600ram specifications mainly for trimming ( cutting edge ) processing semi-finished sheet ; ф650 above specifications is mainly used for similar tombstone , grave stone columns and other thick (column ) forming sawing and for sawing blocks of cut ( board ) material processing. Currently particularly ф1600mm saw the matrix using the most common.
ф200 ~ 600mm size diamond saw blade matrix , due to the low technical content, the technical and quality requirements are not high, only requires the ability to use the line cutting edge products on the market tends to homogenization. Currently ф200 ~ 600mm blade matrix specification hundreds of manufacturers , the market competition is mainly price competition as the main means fierce competition in the industry , profit margins are low , some domestic enterprises do not intend to have the strength to compete in this low-end market .
ф650mm matrix relative to the above specifications ф200-600mm specifications, product processing difficulty to a large, initial capital industry into more, higher threshold. Users of the product quality and performance requirements are also higher . Few domestic manufacturers , less than 10 , the product showed a certain degree of differentiation , market competition to non-price competition as the main means of good or bad quality of the merits of the product itself , stable performance , length of life and services play a key role in the market competition . In Fujian, Guangdong and other southern regions , diamond saw blade matrix commonly used in groups , each of 10 combinations as ф940mm kind фl600mm each use , ф680mm, фll40mm and фl600mm each 5 each combination and so on. Combination group saw the matrix used to cut granite and marble slabs , greatly improving the precision sheet metal cutting efficiency and save power consumption by more than 15 %, while the base of the blade itself is of a higher quality and performance requirements.
Along with the increasing emphasis on environmental protection , mining blocks scarcity of resources, power resources in tight supply , rising stone enterprise manufacturing costs, increased competition , a number of energy-saving , resource-based , environmentally friendly saw the matrix more and more markets welcome , customer demand for varieties blade matrix there are some new features:
1 slice , thin film saw the matrix
Sheet , thin blade substrate sheet , the thickness of the substrate primarily to distinguish the ф1600mm substrate normal thickness 7.3mm, 6.5mm or less in thickness of the sheet substrate is called , 5.5mm or less in thickness is called ultrathin sheet substrate . The use of thin , thin film substrate cutting blade granite and marble slabs , can significantly improve efficiency and cut blocks the yield , reduce power consumption , such as the use of ultra-thin thickness of 4.0mm. Ф1600mm matrix can improve cutting efficiency over 10% , more than 20% reduction in power consumption , increase utilization of 16% or more blocks .
As the thin , ultra-thin diamond blade matrix thin film thickness , diameter, large deformation during heat treatment , and thus the degree of heat treatment on the plane and HRC control is very important. And because the thickness of the thin end jump to adjust the stress , comprising detecting great difficulties are caused , in general , only by manual correction is difficult to achieve a good level and detecting the effect . Black Whirlwind domestic companies to import advanced equipment from Germany Four , set rolling , adjusting stress detection end jump and flatness as one, dedicated to the production of ultra-thin saw blade matrix , the better solution of the product of stress distribution flatness problems and product end jump, rigidity and other indicators .
2 blade base frame
Large diamond frame saw , also known as diamond saw, is a new framework for the last century saw the beginning of the 1950s to develop. At present, more developed countries in the process of stone , diamond frame saw frame in the processing of marble has largely replaced the sand saw, its advantages are: cutting speed, high production efficiency ; good processing quality , smooth cutting plate , eliminating the need for a coarse grinding process ; saving labor and steel, improve the working environment , easy to manage.
Currently, diamond saws has been applied in the framework of the marble cutting , especially in Guangdong, Fujian, Shanghai and other places to develop rapidly. It is understood that saw a total capacity has reached more than 700 units. Large quantities of data to show that some of the technical and economic indicators have been part of the diamond frame saw better than sand saws. As technology advances and the blade tip domestic matrix, diamond frame saw can partially replace sand saws.
Mechanism of diamond cutting tools diamond blade saw frame is reciprocating linear motion through the frame , head of the blocks be chipping , cutting , swipe , furrows and crushing , grinding, sawing blocks come . As the trip short, low line speed , a small amount of water , chip difficult to saw, head and base are made high demands. Under the present circumstances , the frame saw blade sawing granite base is still mainly rely on imports , but domestic Whirlwind companies have started to develop, produce , and the establishment of a high level of specialized production lines , steel and select with international standards, in most of the key indicators up to Germany, France , Belgium and other standards of advanced countries , the products will gradually replace imports and exports in volume .
3 or more large diameter 2600mm blade matrix
Currently, the country has widespread drilling blasting this backward approach to mining stone blocks , not only low productivity and job insecurity, especially since knocking rock burst caused serious damage to the stone resources , produced by the blocks size irregular , or even scrapped because the cracks , the yield is very low. According to estimates , drilling blasting method using mining blocks only 5 % to 25 % of the extraction volume can be processed timber . Some stone industrial countries have banned the use of blasting stone mining , international industry believes that China 's stone mine production rate and serious waste of resources , mainly because of the lack of a large number of industrial diamond blade matrix corresponding mechanized equipment and related mining backward technology, poor production management .
In recent years, the domestic first developed a large sheet-type mines emptied saw the matrix . Some mining companies , the use of the above specifications ф2600mm large slices exploitation of mines , mining resources utilization reached 90 %. According to research, the use of large domestic mining saw the matrix of stone blocks , diamond saw blades have been more and more attention and promotion, its mine saw rapid growth in number of units to about 800 units.
In addition , the market demand for increasingly large stone slab , in the past mainly rely on the blade frame processing stone slabs , but the main diamond saw blade for cutting marble and other soft stone, granite and processes for cutting stone still circular saw blade to complete. Stone processing enterprises to meet the requirements of domestic and foreign markets , using large circular saw blades cutting the base plate, there will be a peak in recent years .
4 hollowed -type blade matrix
Emptied saw the matrix relative to conventional blade matrix , more than just working on the base a few rows of holes , the shape of the hole with water drop is mainly based. Use фl600mm hollowed out from the current situation circular saw blade type , Mohs hardness of stone, 7 degrees below the sawing process does not make any changes , hollowed -type blade matrix relative to conventional sheet substrate outstanding performance of the several advantages :
( 1 ) Ease of water significantly improves the cooling effect ;
( 2 ) increase the amount of chip ;
( 3 ) to reduce the operation load and the weight of the matrix saw , a current down 5A;
( 4 ) reduces operating noise ;
( 5 ) Since the matrix weight reduction , so that the combination of small diamond saw blade load more possible ;
( 6 ) to extend the life of the substrate , increasing the number of square meters of cut , small welding deformation ;
( 7 ) the use of intermittent tension good recovery performance . From the extensive use of data indicate that the use of hollowed -type blade matrix processing stone , not only to make the unit square greatly reduced power consumption , and improve the utilization of stone blocks of resources, improved labor productivity stone processing . Currently, the hollowed -type blade matrix not only widely used in stone processing industry , but also in the field of stone mining , production of large hollowed blade matrix to promote more and get a lot of use . We believe that only a strong and reliable products to occupy the market .
-----www.sunnytoolsblog.com
-----www.concretetoolsunny.com
Classified by material , the current domestic production of diamond saw blade material matrix mainly 50Mn2V, 75Crl and 65Mn three materials , as well as some low-end market with a 45 # steel. 45 # steel is ordinary carbon steel , 65Mn spring steel is common , 75Crl high carbon alloy steel . In comparison , 50Mn2V is a carbon steel , 50Mn2V fine grain size , high thermal stability, high strength and toughness , fatigue resistance and heat resistance. 50Mn2V saw the matrix material , with a number of complex welding , long service life , the welding head blade easily deformed, easy to repair after deformation , etc., as well as in the course of the product so that the effect of high rigidity gradually , so 50Mn2V materials are widely used in the processing and production of diamond saw blade matrix .
Classification according to specifications , the domestic stone processing blade matrix size starting from ф200mm maximum of ф3500mm ( foreign specifications for maximum saw blade towel 5000mm). Which , dp200-600ram specifications mainly for trimming ( cutting edge ) processing semi-finished sheet ; ф650 above specifications is mainly used for similar tombstone , grave stone columns and other thick (column ) forming sawing and for sawing blocks of cut ( board ) material processing. Currently particularly ф1600mm saw the matrix using the most common.
ф200 ~ 600mm size diamond saw blade matrix , due to the low technical content, the technical and quality requirements are not high, only requires the ability to use the line cutting edge products on the market tends to homogenization. Currently ф200 ~ 600mm blade matrix specification hundreds of manufacturers , the market competition is mainly price competition as the main means fierce competition in the industry , profit margins are low , some domestic enterprises do not intend to have the strength to compete in this low-end market .
ф650mm matrix relative to the above specifications ф200-600mm specifications, product processing difficulty to a large, initial capital industry into more, higher threshold. Users of the product quality and performance requirements are also higher . Few domestic manufacturers , less than 10 , the product showed a certain degree of differentiation , market competition to non-price competition as the main means of good or bad quality of the merits of the product itself , stable performance , length of life and services play a key role in the market competition . In Fujian, Guangdong and other southern regions , diamond saw blade matrix commonly used in groups , each of 10 combinations as ф940mm kind фl600mm each use , ф680mm, фll40mm and фl600mm each 5 each combination and so on. Combination group saw the matrix used to cut granite and marble slabs , greatly improving the precision sheet metal cutting efficiency and save power consumption by more than 15 %, while the base of the blade itself is of a higher quality and performance requirements.
Along with the increasing emphasis on environmental protection , mining blocks scarcity of resources, power resources in tight supply , rising stone enterprise manufacturing costs, increased competition , a number of energy-saving , resource-based , environmentally friendly saw the matrix more and more markets welcome , customer demand for varieties blade matrix there are some new features:
1 slice , thin film saw the matrix
Sheet , thin blade substrate sheet , the thickness of the substrate primarily to distinguish the ф1600mm substrate normal thickness 7.3mm, 6.5mm or less in thickness of the sheet substrate is called , 5.5mm or less in thickness is called ultrathin sheet substrate . The use of thin , thin film substrate cutting blade granite and marble slabs , can significantly improve efficiency and cut blocks the yield , reduce power consumption , such as the use of ultra-thin thickness of 4.0mm. Ф1600mm matrix can improve cutting efficiency over 10% , more than 20% reduction in power consumption , increase utilization of 16% or more blocks .
As the thin , ultra-thin diamond blade matrix thin film thickness , diameter, large deformation during heat treatment , and thus the degree of heat treatment on the plane and HRC control is very important. And because the thickness of the thin end jump to adjust the stress , comprising detecting great difficulties are caused , in general , only by manual correction is difficult to achieve a good level and detecting the effect . Black Whirlwind domestic companies to import advanced equipment from Germany Four , set rolling , adjusting stress detection end jump and flatness as one, dedicated to the production of ultra-thin saw blade matrix , the better solution of the product of stress distribution flatness problems and product end jump, rigidity and other indicators .
2 blade base frame
Large diamond frame saw , also known as diamond saw, is a new framework for the last century saw the beginning of the 1950s to develop. At present, more developed countries in the process of stone , diamond frame saw frame in the processing of marble has largely replaced the sand saw, its advantages are: cutting speed, high production efficiency ; good processing quality , smooth cutting plate , eliminating the need for a coarse grinding process ; saving labor and steel, improve the working environment , easy to manage.
Currently, diamond saws has been applied in the framework of the marble cutting , especially in Guangdong, Fujian, Shanghai and other places to develop rapidly. It is understood that saw a total capacity has reached more than 700 units. Large quantities of data to show that some of the technical and economic indicators have been part of the diamond frame saw better than sand saws. As technology advances and the blade tip domestic matrix, diamond frame saw can partially replace sand saws.
Mechanism of diamond cutting tools diamond blade saw frame is reciprocating linear motion through the frame , head of the blocks be chipping , cutting , swipe , furrows and crushing , grinding, sawing blocks come . As the trip short, low line speed , a small amount of water , chip difficult to saw, head and base are made high demands. Under the present circumstances , the frame saw blade sawing granite base is still mainly rely on imports , but domestic Whirlwind companies have started to develop, produce , and the establishment of a high level of specialized production lines , steel and select with international standards, in most of the key indicators up to Germany, France , Belgium and other standards of advanced countries , the products will gradually replace imports and exports in volume .
3 or more large diameter 2600mm blade matrix
Currently, the country has widespread drilling blasting this backward approach to mining stone blocks , not only low productivity and job insecurity, especially since knocking rock burst caused serious damage to the stone resources , produced by the blocks size irregular , or even scrapped because the cracks , the yield is very low. According to estimates , drilling blasting method using mining blocks only 5 % to 25 % of the extraction volume can be processed timber . Some stone industrial countries have banned the use of blasting stone mining , international industry believes that China 's stone mine production rate and serious waste of resources , mainly because of the lack of a large number of industrial diamond blade matrix corresponding mechanized equipment and related mining backward technology, poor production management .
In recent years, the domestic first developed a large sheet-type mines emptied saw the matrix . Some mining companies , the use of the above specifications ф2600mm large slices exploitation of mines , mining resources utilization reached 90 %. According to research, the use of large domestic mining saw the matrix of stone blocks , diamond saw blades have been more and more attention and promotion, its mine saw rapid growth in number of units to about 800 units.
In addition , the market demand for increasingly large stone slab , in the past mainly rely on the blade frame processing stone slabs , but the main diamond saw blade for cutting marble and other soft stone, granite and processes for cutting stone still circular saw blade to complete. Stone processing enterprises to meet the requirements of domestic and foreign markets , using large circular saw blades cutting the base plate, there will be a peak in recent years .
4 hollowed -type blade matrix
Emptied saw the matrix relative to conventional blade matrix , more than just working on the base a few rows of holes , the shape of the hole with water drop is mainly based. Use фl600mm hollowed out from the current situation circular saw blade type , Mohs hardness of stone, 7 degrees below the sawing process does not make any changes , hollowed -type blade matrix relative to conventional sheet substrate outstanding performance of the several advantages :
( 1 ) Ease of water significantly improves the cooling effect ;
( 2 ) increase the amount of chip ;
( 3 ) to reduce the operation load and the weight of the matrix saw , a current down 5A;
( 4 ) reduces operating noise ;
( 5 ) Since the matrix weight reduction , so that the combination of small diamond saw blade load more possible ;
( 6 ) to extend the life of the substrate , increasing the number of square meters of cut , small welding deformation ;
( 7 ) the use of intermittent tension good recovery performance . From the extensive use of data indicate that the use of hollowed -type blade matrix processing stone , not only to make the unit square greatly reduced power consumption , and improve the utilization of stone blocks of resources, improved labor productivity stone processing . Currently, the hollowed -type blade matrix not only widely used in stone processing industry , but also in the field of stone mining , production of large hollowed blade matrix to promote more and get a lot of use . We believe that only a strong and reliable products to occupy the market .
-----www.sunnytoolsblog.com
-----www.concretetoolsunny.com
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